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This commit is contained in:
2026-09-13 22:18:11 +01:00
commit 08c03ac533
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disable TYPEDEFSTRUCT
disable SNPRINTF
disable BANNEDFUNC
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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2020, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* <DESC>
* Download many files in parallel, in the same thread.
* </DESC>
*/
#include <errno.h>
#include <stdlib.h>
#include <string.h>
#ifndef WIN32
# include <unistd.h>
#endif
#include <curl/curl.h>
static const char *urls[] = {
"https://www.microsoft.com",
"https://opensource.org",
"https://www.google.com",
"https://www.yahoo.com",
"https://www.ibm.com",
"https://www.mysql.com",
"https://www.oracle.com",
"https://www.ripe.net",
"https://www.iana.org",
"https://www.amazon.com",
"https://www.netcraft.com",
"https://www.heise.de",
"https://www.chip.de",
"https://www.ca.com",
"https://www.cnet.com",
"https://www.mozilla.org",
"https://www.cnn.com",
"https://www.wikipedia.org",
"https://www.dell.com",
"https://www.hp.com",
"https://www.cert.org",
"https://www.mit.edu",
"https://www.nist.gov",
"https://www.ebay.com",
"https://www.playstation.com",
"https://www.uefa.com",
"https://www.ieee.org",
"https://www.apple.com",
"https://www.symantec.com",
"https://www.zdnet.com",
"https://www.fujitsu.com/global/",
"https://www.supermicro.com",
"https://www.hotmail.com",
"https://www.ietf.org",
"https://www.bbc.co.uk",
"https://news.google.com",
"https://www.foxnews.com",
"https://www.msn.com",
"https://www.wired.com",
"https://www.sky.com",
"https://www.usatoday.com",
"https://www.cbs.com",
"https://www.nbc.com/",
"https://slashdot.org",
"https://www.informationweek.com",
"https://apache.org",
"https://www.un.org",
};
#define MAX_PARALLEL 10 /* number of simultaneous transfers */
#define NUM_URLS sizeof(urls)/sizeof(char *)
static size_t write_cb(char *data, size_t n, size_t l, void *userp)
{
/* take care of the data here, ignored in this example */
(void)data;
(void)userp;
return n*l;
}
static void add_transfer(CURLM *cm, int i)
{
CURL *eh = curl_easy_init();
curl_easy_setopt(eh, CURLOPT_WRITEFUNCTION, write_cb);
curl_easy_setopt(eh, CURLOPT_URL, urls[i]);
curl_easy_setopt(eh, CURLOPT_PRIVATE, urls[i]);
curl_multi_add_handle(cm, eh);
}
int main(void)
{
CURLM *cm;
CURLMsg *msg;
unsigned int transfers = 0;
int msgs_left = -1;
int still_alive = 1;
curl_global_init(CURL_GLOBAL_ALL);
cm = curl_multi_init();
/* Limit the amount of simultaneous connections curl should allow: */
curl_multi_setopt(cm, CURLMOPT_MAXCONNECTS, (long)MAX_PARALLEL);
for(transfers = 0; transfers < MAX_PARALLEL; transfers++)
add_transfer(cm, transfers);
do {
curl_multi_perform(cm, &still_alive);
while((msg = curl_multi_info_read(cm, &msgs_left))) {
if(msg->msg == CURLMSG_DONE) {
char *url;
CURL *e = msg->easy_handle;
curl_easy_getinfo(msg->easy_handle, CURLINFO_PRIVATE, &url);
fprintf(stderr, "R: %d - %s <%s>\n",
msg->data.result, curl_easy_strerror(msg->data.result), url);
curl_multi_remove_handle(cm, e);
curl_easy_cleanup(e);
}
else {
fprintf(stderr, "E: CURLMsg (%d)\n", msg->msg);
}
if(transfers < NUM_URLS)
add_transfer(cm, transfers++);
}
if(still_alive)
curl_multi_wait(cm, NULL, 0, 1000, NULL);
} while(still_alive || (transfers < NUM_URLS));
curl_multi_cleanup(cm);
curl_global_cleanup();
return EXIT_SUCCESS;
}
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#***************************************************************************
# _ _ ____ _
# Project ___| | | | _ \| |
# / __| | | | |_) | |
# | (__| |_| | _ <| |___
# \___|\___/|_| \_\_____|
#
# Copyright (C) 1998 - 2020, Daniel Stenberg, <[email protected]>, et al.
#
# This software is licensed as described in the file COPYING, which
# you should have received as part of this distribution. The terms
# are also available at https://curl.se/docs/copyright.html.
#
# You may opt to use, copy, modify, merge, publish, distribute and/or sell
# copies of the Software, and permit persons to whom the Software is
# furnished to do so, under the terms of the COPYING file.
#
# This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
# KIND, either express or implied.
#
###########################################################################
AUTOMAKE_OPTIONS = foreign nostdinc
EXTRA_DIST = README.md Makefile.example Makefile.inc Makefile.m32 \
Makefile.netware makefile.dj $(COMPLICATED_EXAMPLES) .checksrc
# Specify our include paths here, and do it relative to $(top_srcdir) and
# $(top_builddir), to ensure that these paths which belong to the library
# being currently built and tested are searched before the library which
# might possibly already be installed in the system.
#
# $(top_srcdir)/include is for libcurl's external include files
AM_CPPFLAGS = -I$(top_srcdir)/include
LIBDIR = $(top_builddir)/lib
# Avoid libcurl obsolete stuff
AM_CPPFLAGS += -DCURL_NO_OLDIES
if USE_CPPFLAG_CURL_STATICLIB
AM_CPPFLAGS += -DCURL_STATICLIB
endif
# Prevent LIBS from being used for all link targets
LIBS = $(BLANK_AT_MAKETIME)
# Dependencies
if USE_EXPLICIT_LIB_DEPS
LDADD = $(LIBDIR)/libcurl.la @LIBCURL_LIBS@
else
LDADD = $(LIBDIR)/libcurl.la
endif
# This might hold -Werror
CFLAGS += @CURL_CFLAG_EXTRAS@
# Makefile.inc provides the check_PROGRAMS and COMPLICATED_EXAMPLES defines
include Makefile.inc
all: $(check_PROGRAMS)
CHECKSRC = $(CS_$(V))
CS_0 = @echo " RUN " $@;
CS_1 =
CS_ = $(CS_0)
checksrc:
$(CHECKSRC)(@PERL@ $(top_srcdir)/lib/checksrc.pl -D$(srcdir) $(srcdir)/*.c)
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#***************************************************************************
# _ _ ____ _
# Project ___| | | | _ \| |
# / __| | | | |_) | |
# | (__| |_| | _ <| |___
# \___|\___/|_| \_\_____|
#
# Copyright (C) 1998 - 2020, Daniel Stenberg, <[email protected]>, et al.
#
# This software is licensed as described in the file COPYING, which
# you should have received as part of this distribution. The terms
# are also available at https://curl.se/docs/copyright.html.
#
# You may opt to use, copy, modify, merge, publish, distribute and/or sell
# copies of the Software, and permit persons to whom the Software is
# furnished to do so, under the terms of the COPYING file.
#
# This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
# KIND, either express or implied.
#
###########################################################################
# What to call the final executable
TARGET = example
# Which object files that the executable consists of
OBJS= ftpget.o
# What compiler to use
CC = gcc
# Compiler flags, -g for debug, -c to make an object file
CFLAGS = -c -g
# This should point to a directory that holds libcurl, if it isn't
# in the system's standard lib dir
# We also set a -L to include the directory where we have the openssl
# libraries
LDFLAGS = -L/home/dast/lib -L/usr/local/ssl/lib
# We need -lcurl for the curl stuff
# We need -lsocket and -lnsl when on Solaris
# We need -lssl and -lcrypto when using libcurl with SSL support
# We need -lpthread for the pthread example
LIBS = -lcurl -lsocket -lnsl -lssl -lcrypto
# Link the target with all objects and libraries
$(TARGET) : $(OBJS)
$(CC) -o $(TARGET) $(OBJS) $(LDFLAGS) $(LIBS)
# Compile the source files into object files
ftpget.o : ftpget.c
$(CC) $(CFLAGS) $<
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#***************************************************************************
# _ _ ____ _
# Project ___| | | | _ \| |
# / __| | | | |_) | |
# | (__| |_| | _ <| |___
# \___|\___/|_| \_\_____|
#
# Copyright (C) 1998 - 2020, Daniel Stenberg, <[email protected]>, et al.
#
# This software is licensed as described in the file COPYING, which
# you should have received as part of this distribution. The terms
# are also available at https://curl.se/docs/copyright.html.
#
# You may opt to use, copy, modify, merge, publish, distribute and/or sell
# copies of the Software, and permit persons to whom the Software is
# furnished to do so, under the terms of the COPYING file.
#
# This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
# KIND, either express or implied.
#
###########################################################################
# These are all libcurl example programs to be test compiled
check_PROGRAMS = 10-at-a-time anyauthput cookie_interface debug fileupload \
fopen ftpget ftpgetresp ftpupload getinfo getinmemory http-post httpput \
https multi-app multi-debugcallback multi-double multi-post multi-single \
persistent post-callback postit2 sepheaders simple simplepost simplessl \
sendrecv httpcustomheader certinfo chkspeed ftpgetinfo ftp-wildcard \
smtp-mail smtp-mime smtp-multi smtp-ssl smtp-tls smtp-vrfy smtp-expn \
rtsp externalsocket resolve progressfunc pop3-retr pop3-list pop3-uidl \
pop3-dele pop3-top pop3-stat pop3-noop pop3-ssl pop3-tls pop3-multi \
imap-list imap-lsub imap-fetch imap-store imap-append imap-examine \
imap-search imap-create imap-delete imap-copy imap-noop imap-ssl \
imap-tls imap-multi url2file sftpget ftpsget postinmemory http2-download \
http2-upload http2-serverpush getredirect ftpuploadfrommem \
ftpuploadresume sslbackend postit2-formadd multi-formadd \
shared-connection-cache sftpuploadresume http2-pushinmemory parseurl \
urlapi imap-authzid pop3-authzid smtp-authzid http3 altsvc \
http3-present multi-poll httpput-postfields
# These examples require external dependencies that may not be commonly
# available on POSIX systems, so don't bother attempting to compile them here.
COMPLICATED_EXAMPLES = curlgtk.c curlx.c htmltitle.cpp cacertinmem.c \
ghiper.c hiperfifo.c htmltidy.c multithread.c opensslthreadlock.c \
sampleconv.c synctime.c threaded-ssl.c evhiperfifo.c \
smooth-gtk-thread.c version-check.pl href_extractor.c \
multi-uv.c xmlstream.c usercertinmem.c sessioninfo.c \
threaded-shared-conn.c crawler.c ephiperfifo.c multi-event.c
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#***************************************************************************
# _ _ ____ _
# Project ___| | | | _ \| |
# / __| | | | |_) | |
# | (__| |_| | _ <| |___
# \___|\___/|_| \_\_____|
#
# Copyright (C) 1998 - 2020, Daniel Stenberg, <[email protected]>, et al.
#
# This software is licensed as described in the file COPYING, which
# you should have received as part of this distribution. The terms
# are also available at https://curl.se/docs/copyright.html.
#
# You may opt to use, copy, modify, merge, publish, distribute and/or sell
# copies of the Software, and permit persons to whom the Software is
# furnished to do so, under the terms of the COPYING file.
#
# This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
# KIND, either express or implied.
#
#***************************************************************************
###########################################################################
#
## Makefile for building curl examples with MingW (GCC-3.2 or later)
## and optionally OpenSSL (1.0.2a), libssh2 (1.5), zlib (1.2.8), librtmp (2.4),
## brotli (1.0.1), zstd (1.4.5)
##
## Usage: mingw32-make -f Makefile.m32 CFG=-feature1[-feature2][-feature3][...]
## Example: mingw32-make -f Makefile.m32 CFG=-zlib-ssl-sspi-winidn
##
## Hint: you can also set environment vars to control the build, f.e.:
## set ZLIB_PATH=c:/zlib-1.2.8
## set ZLIB=1
#
###########################################################################
# Edit the path below to point to the base of your Zlib sources.
ifndef ZLIB_PATH
ZLIB_PATH = ../../../zlib-1.2.8
endif
# Edit the path below to point to the base of your Zstandard sources.
ifndef ZSTD_PATH
ZSTD_PATH = ../../../zstd-1.4.5
endif
# Edit the path below to point to the base of your Brotli sources.
ifndef BROTLI_PATH
BROTLI_PATH = ../../../brotli-1.0.1
endif
# Edit the path below to point to the base of your OpenSSL package.
ifndef OPENSSL_PATH
OPENSSL_PATH = ../../../openssl-1.0.2a
endif
# Edit the path below to point to the base of your LibSSH2 package.
ifndef LIBSSH2_PATH
LIBSSH2_PATH = ../../../libssh2-1.5.0
endif
# Edit the path below to point to the base of your librtmp package.
ifndef LIBRTMP_PATH
LIBRTMP_PATH = ../../../librtmp-2.4
endif
# Edit the path below to point to the base of your libmetalink package.
ifndef LIBMETALINK_PATH
LIBMETALINK_PATH = ../../../libmetalink-0.1.3
endif
# Edit the path below to point to the base of your libexpat package.
ifndef LIBEXPAT_PATH
LIBEXPAT_PATH = ../../../expat-2.1.0
endif
# Edit the path below to point to the base of your libxml2 package.
ifndef LIBXML2_PATH
LIBXML2_PATH = ../../../libxml2-2.9.2
endif
# Edit the path below to point to the base of your libidn2 package.
ifndef LIBIDN2_PATH
LIBIDN2_PATH = ../../../libidn2-2.0.3
endif
# Edit the path below to point to the base of your MS IDN package.
# Microsoft Internationalized Domain Names (IDN) Mitigation APIs 1.1
# https://www.microsoft.com/en-us/download/details.aspx?id=734
ifndef WINIDN_PATH
WINIDN_PATH = ../../../Microsoft IDN Mitigation APIs
endif
# Edit the path below to point to the base of your Novell LDAP NDK.
ifndef LDAP_SDK
LDAP_SDK = c:/novell/ndk/cldapsdk/win32
endif
# Edit the path below to point to the base of your nghttp2 package.
ifndef NGHTTP2_PATH
NGHTTP2_PATH = ../../../nghttp2-1.0.0
endif
# Edit the path below to point to the base of your nghttp3 package.
ifndef NGHTTP3_PATH
NGHTTP3_PATH = ../../../nghttp3-1.0.0
endif
# Edit the path below to point to the base of your ngtcp2 package.
ifndef NGTCP2_PATH
NGTCP2_PATH = ../../../ngtcp2-1.0.0
endif
PROOT = ../..
# Edit the path below to point to the base of your c-ares package.
ifndef LIBCARES_PATH
LIBCARES_PATH = $(PROOT)/ares
endif
ifeq ($(CURL_CC),)
CURL_CC := $(CROSSPREFIX)gcc
endif
ifeq ($(CURL_AR),)
CURL_AR := $(CROSSPREFIX)ar
endif
CC = $(CURL_CC)
CFLAGS = $(CURL_CFLAG_EXTRAS) -g -O2 -Wall -W
CFLAGS += -fno-strict-aliasing
# comment LDFLAGS below to keep debug info
LDFLAGS = $(CURL_LDFLAG_EXTRAS) $(CURL_LDFLAG_EXTRAS_EXE) -s
RC = $(CROSSPREFIX)windres
RCFLAGS = --include-dir=$(PROOT)/include -O coff
# Set environment var ARCH to your architecture to override autodetection.
ifndef ARCH
ifeq ($(findstring x86_64,$(shell $(CC) -dumpmachine)),x86_64)
ARCH = w64
else
ARCH = w32
endif
endif
ifeq ($(ARCH),w64)
CFLAGS += -m64 -D_AMD64_
LDFLAGS += -m64
RCFLAGS += -F pe-x86-64
else
CFLAGS += -m32
LDFLAGS += -m32
RCFLAGS += -F pe-i386
endif
# Platform-dependent helper tool macros
ifeq ($(findstring /sh,$(SHELL)),/sh)
DEL = rm -f $1
RMDIR = rm -fr $1
MKDIR = mkdir -p $1
COPY = -cp -afv $1 $2
#COPYR = -cp -afr $1/* $2
COPYR = -rsync -aC $1/* $2
TOUCH = touch $1
CAT = cat
ECHONL = echo ""
DL = '
else
ifeq "$(OS)" "Windows_NT"
DEL = -del 2>NUL /q /f $(subst /,\,$1)
RMDIR = -rd 2>NUL /q /s $(subst /,\,$1)
else
DEL = -del 2>NUL $(subst /,\,$1)
RMDIR = -deltree 2>NUL /y $(subst /,\,$1)
endif
MKDIR = -md 2>NUL $(subst /,\,$1)
COPY = -copy 2>NUL /y $(subst /,\,$1) $(subst /,\,$2)
COPYR = -xcopy 2>NUL /q /y /e $(subst /,\,$1) $(subst /,\,$2)
TOUCH = copy 2>&1>NUL /b $(subst /,\,$1) +,,
CAT = type
ECHONL = $(ComSpec) /c echo.
endif
########################################################
## Nothing more to do below this line!
ifeq ($(findstring -dyn,$(CFG)),-dyn)
DYN = 1
endif
ifeq ($(findstring -ares,$(CFG)),-ares)
ARES = 1
endif
ifeq ($(findstring -rtmp,$(CFG)),-rtmp)
RTMP = 1
SSL = 1
ZLIB = 1
endif
ifeq ($(findstring -ssh2,$(CFG)),-ssh2)
SSH2 = 1
SSL = 1
ZLIB = 1
endif
ifeq ($(findstring -ssl,$(CFG)),-ssl)
SSL = 1
endif
ifeq ($(findstring -zlib,$(CFG)),-zlib)
ZLIB = 1
endif
ifeq ($(findstring -zstd,$(CFG)),-zstd)
ZSTD = 1
endif
ifeq ($(findstring -brotli,$(CFG)),-brotli)
BROTLI = 1
endif
ifeq ($(findstring -idn2,$(CFG)),-idn2)
IDN2 = 1
endif
ifeq ($(findstring -winidn,$(CFG)),-winidn)
WINIDN = 1
endif
ifeq ($(findstring -sspi,$(CFG)),-sspi)
SSPI = 1
endif
ifeq ($(findstring -ldaps,$(CFG)),-ldaps)
LDAPS = 1
endif
ifeq ($(findstring -ipv6,$(CFG)),-ipv6)
IPV6 = 1
endif
ifeq ($(findstring -metalink,$(CFG)),-metalink)
METALINK = 1
endif
ifeq ($(findstring -winssl,$(CFG)),-winssl)
WINSSL = 1
SSPI = 1
endif
ifeq ($(findstring -nghttp2,$(CFG)),-nghttp2)
NGHTTP2 = 1
endif
ifeq ($(findstring -nghttp3,$(CFG)),-nghttp3)
NGHTTP3 = 1
endif
ifeq ($(findstring -ngtcp2,$(CFG)),-ngtcp2)
NGTCP2 = 1
endif
INCLUDES = -I. -I$(PROOT) -I$(PROOT)/include -I$(PROOT)/lib
ifdef DYN
curl_DEPENDENCIES = $(PROOT)/lib/libcurldll.a $(PROOT)/lib/libcurl.dll
curl_LDADD = -L$(PROOT)/lib -lcurldll
else
curl_DEPENDENCIES = $(PROOT)/lib/libcurl.a
curl_LDADD = -L$(PROOT)/lib -lcurl
CFLAGS += -DCURL_STATICLIB
LDFLAGS += -static
endif
ifdef ARES
ifndef DYN
curl_DEPENDENCIES += $(LIBCARES_PATH)/libcares.a
endif
CFLAGS += -DUSE_ARES
curl_LDADD += -L"$(LIBCARES_PATH)" -lcares
endif
ifdef RTMP
CFLAGS += -DUSE_LIBRTMP
curl_LDADD += -L"$(LIBRTMP_PATH)/librtmp" -lrtmp -lwinmm
endif
ifdef NGHTTP2
CFLAGS += -DUSE_NGHTTP2
curl_LDADD += -L"$(NGHTTP2_PATH)/lib" -lnghttp2
endif
ifdef SSH2
CFLAGS += -DUSE_LIBSSH2 -DHAVE_LIBSSH2_H
curl_LDADD += -L"$(LIBSSH2_PATH)/win32" -lssh2
ifdef WINSSL
ifndef DYN
curl_LDADD += -lbcrypt -lcrypt32
endif
endif
endif
ifdef SSL
ifdef NGHTTP3
CFLAGS += -DUSE_NGHTTP3
curl_LDADD += -L"$(NGHTTP3_PATH)/lib" -lnghttp3
ifdef NGTCP2
CFLAGS += -DUSE_NGTCP2
curl_LDADD += -L"$(NGTCP2_PATH)/lib" -lngtcp2 -lngtcp2_crypto_openssl
endif
endif
ifndef OPENSSL_INCLUDE
ifeq "$(wildcard $(OPENSSL_PATH)/outinc)" "$(OPENSSL_PATH)/outinc"
OPENSSL_INCLUDE = $(OPENSSL_PATH)/outinc
endif
ifeq "$(wildcard $(OPENSSL_PATH)/include)" "$(OPENSSL_PATH)/include"
OPENSSL_INCLUDE = $(OPENSSL_PATH)/include
endif
endif
ifneq "$(wildcard $(OPENSSL_INCLUDE)/openssl/opensslv.h)" "$(OPENSSL_INCLUDE)/openssl/opensslv.h"
$(error Invalid path to OpenSSL package: $(OPENSSL_PATH))
endif
ifndef OPENSSL_LIBPATH
OPENSSL_LIBS = -lssl -lcrypto
ifeq "$(wildcard $(OPENSSL_PATH)/out)" "$(OPENSSL_PATH)/out"
OPENSSL_LIBPATH = $(OPENSSL_PATH)/out
ifdef DYN
OPENSSL_LIBS = -lssl32 -leay32
endif
endif
ifeq "$(wildcard $(OPENSSL_PATH)/lib)" "$(OPENSSL_PATH)/lib"
OPENSSL_LIBPATH = $(OPENSSL_PATH)/lib
endif
endif
ifndef DYN
OPENSSL_LIBS += -lgdi32 -lcrypt32
endif
INCLUDES += -I"$(OPENSSL_INCLUDE)"
CFLAGS += -DUSE_OPENSSL
curl_LDADD += -L"$(OPENSSL_LIBPATH)" $(OPENSSL_LIBS)
endif
ifdef WINSSL
CFLAGS += -DUSE_SCHANNEL
curl_LDADD += -lcrypt32
endif
ifdef ZLIB
INCLUDES += -I"$(ZLIB_PATH)"
CFLAGS += -DHAVE_LIBZ -DHAVE_ZLIB_H
curl_LDADD += -L"$(ZLIB_PATH)" -lz
endif
ifdef ZSTD
INCLUDES += -I"$(ZSTD_PATH)/include"
CFLAGS += -DHAVE_ZSTD
curl_LDADD += -L"$(ZSTD_PATH)/lib"
ifdef ZSTD_LIBS
curl_LDADD += $(ZSTD_LIBS)
else
curl_LDADD += -lzstd
endif
endif
ifdef BROTLI
INCLUDES += -I"$(BROTLI_PATH)/include"
CFLAGS += -DHAVE_BROTLI
curl_LDADD += -L"$(BROTLI_PATH)/lib"
ifdef BROTLI_LIBS
curl_LDADD += $(BROTLI_LIBS)
else
curl_LDADD += -lbrotlidec
endif
endif
ifdef IDN2
CFLAGS += -DUSE_LIBIDN2
curl_LDADD += -L"$(LIBIDN2_PATH)/lib" -lidn2
else
ifdef WINIDN
CFLAGS += -DUSE_WIN32_IDN
curl_LDADD += -L"$(WINIDN_PATH)" -lnormaliz
endif
endif
ifdef METALINK
INCLUDES += -I"$(LIBMETALINK_PATH)/include"
CFLAGS += -DUSE_METALINK
curl_LDADD += -L"$(LIBMETALINK_PATH)/lib" -lmetalink
ifndef DYN
ifeq ($(findstring libexpat_metalink_parser.o,$(shell $(AR) t "$(LIBMETALINK_PATH)/lib/libmetalink.a")),libexpat_metalink_parser.o)
curl_LDADD += -L"$(LIBEXPAT_PATH)/lib" -lexpat
else
curl_LDADD += -L"$(LIBXML2_PATH)/lib" -lxml2
endif
endif
endif
ifdef SSPI
CFLAGS += -DUSE_WINDOWS_SSPI
endif
ifdef IPV6
CFLAGS += -DENABLE_IPV6 -D_WIN32_WINNT=0x0501
endif
ifdef LDAPS
CFLAGS += -DHAVE_LDAP_SSL
endif
ifdef USE_LDAP_NOVELL
CFLAGS += -DCURL_HAS_NOVELL_LDAPSDK
curl_LDADD += -L"$(LDAP_SDK)/lib/mscvc" -lldapsdk -lldapssl -lldapx
endif
ifdef USE_LDAP_OPENLDAP
CFLAGS += -DCURL_HAS_OPENLDAP_LDAPSDK
curl_LDADD += -L"$(LDAP_SDK)/lib" -lldap -llber
endif
ifndef USE_LDAP_NOVELL
ifndef USE_LDAP_OPENLDAP
curl_LDADD += -lwldap32
endif
endif
curl_LDADD += -lws2_32
# Makefile.inc provides the check_PROGRAMS and COMPLICATED_EXAMPLES defines
include Makefile.inc
check_PROGRAMS := $(patsubst %,%.exe,$(strip $(check_PROGRAMS)))
check_PROGRAMS += ftpuploadresume.exe synctime.exe
.PRECIOUS: %.o
all: $(check_PROGRAMS)
%.exe: %.o $(curl_DEPENDENCIES)
$(CC) $(LDFLAGS) -o $@ $< $(curl_LDADD)
%.o: %.c
$(CC) $(INCLUDES) $(CFLAGS) -c $<
%.res: %.rc
$(RC) $(RCFLAGS) -i $< -o $@
clean:
@$(call DEL, $(check_PROGRAMS:.exe=.o))
distclean vclean: clean
@$(call DEL, $(check_PROGRAMS))
+436
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@@ -0,0 +1,436 @@
#***************************************************************************
# _ _ ____ _
# Project ___| | | | _ \| |
# / __| | | | |_) | |
# | (__| |_| | _ <| |___
# \___|\___/|_| \_\_____|
#
# Copyright (C) 2008 - 2020, Daniel Stenberg, <[email protected]>, et al.
#
# This software is licensed as described in the file COPYING, which
# you should have received as part of this distribution. The terms
# are also available at https://curl.se/docs/copyright.html.
#
# You may opt to use, copy, modify, merge, publish, distribute and/or sell
# copies of the Software, and permit persons to whom the Software is
# furnished to do so, under the terms of the COPYING file.
#
# This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
# KIND, either express or implied.
#
###########################################################################
#################################################################
#
## Makefile for building curl.nlm (NetWare version - gnu make)
## Use: make -f Makefile.netware
##
## Comments to: Guenter Knauf
#
#################################################################
# Edit the path below to point to the base of your Novell NDK.
ifndef NDKBASE
NDKBASE = c:/novell
endif
# Edit the path below to point to the base of your Zlib sources.
ifndef ZLIB_PATH
ZLIB_PATH = ../../../zlib-1.2.8
endif
# Edit the path below to point to the base of your OpenSSL package.
ifndef OPENSSL_PATH
OPENSSL_PATH = ../../../openssl-1.0.2a
endif
# Edit the path below to point to the base of your LibSSH2 package.
ifndef LIBSSH2_PATH
LIBSSH2_PATH = ../../../libssh2-1.5.0
endif
# Edit the path below to point to the base of your libidn package.
ifndef LIBIDN_PATH
LIBIDN_PATH = ../../../libidn-1.32
endif
# Edit the path below to point to the base of your librtmp package.
ifndef LIBRTMP_PATH
LIBRTMP_PATH = ../../../librtmp-2.4
endif
# Edit the path below to point to the base of your fbopenssl package.
ifndef FBOPENSSL_PATH
FBOPENSSL_PATH = ../../fbopenssl-0.4
endif
# Edit the path below to point to the base of your c-ares package.
ifndef LIBCARES_PATH
LIBCARES_PATH = ../../ares
endif
ifndef INSTDIR
INSTDIR = ..$(DS)..$(DS)curl-$(LIBCURL_VERSION_STR)-bin-nw
endif
# Edit the vars below to change NLM target settings.
TARGET = examples
VERSION = $(LIBCURL_VERSION)
COPYR = Copyright (C) $(LIBCURL_COPYRIGHT_STR)
DESCR = curl ($(LIBARCH))
MTSAFE = YES
STACK = 8192
SCREEN = Example Program
# Comment the line below if you don't want to load protected automatically.
# LDRING = 3
# Uncomment the next line to enable linking with POSIX semantics.
# POSIXFL = 1
# Edit the var below to point to your lib architecture.
ifndef LIBARCH
LIBARCH = LIBC
endif
# must be equal to NDEBUG or DEBUG, CURLDEBUG
ifndef DB
DB = NDEBUG
endif
# Optimization: -O<n> or debugging: -g
ifeq ($(DB),NDEBUG)
OPT = -O2
OBJDIR = release
else
OPT = -g
OBJDIR = debug
endif
# The following lines defines your compiler.
ifdef CWFolder
METROWERKS = $(CWFolder)
endif
ifdef METROWERKS
# MWCW_PATH = $(subst \,/,$(METROWERKS))/Novell Support
MWCW_PATH = $(subst \,/,$(METROWERKS))/Novell Support/Metrowerks Support
CC = mwccnlm
else
CC = gcc
endif
PERL = perl
# Here you can find a native Win32 binary of the original awk:
# http://www.gknw.net/development/prgtools/awk-20100523.zip
AWK = awk
CP = cp -afv
MKDIR = mkdir
# RM = rm -f
# If you want to mark the target as MTSAFE you will need a tool for
# generating the xdc data for the linker; here's a minimal tool:
# http://www.gknw.net/development/prgtools/mkxdc.zip
MPKXDC = mkxdc
# LIBARCH_U = $(shell $(AWK) 'BEGIN {print toupper(ARGV[1])}' $(LIBARCH))
LIBARCH_L = $(shell $(AWK) 'BEGIN {print tolower(ARGV[1])}' $(LIBARCH))
# Include the version info retrieved from curlver.h
-include $(OBJDIR)/version.inc
# Global flags for all compilers
CFLAGS += $(OPT) -D$(DB) -DNETWARE -DHAVE_CONFIG_H -nostdinc
ifeq ($(CC),mwccnlm)
LD = mwldnlm
LDFLAGS = -nostdlib $< $(PRELUDE) $(LDLIBS) -o $@ -commandfile
LIBEXT = lib
CFLAGS += -gccinc -inline off -opt nointrinsics -proc 586
CFLAGS += -relax_pointers
#CFLAGS += -w on
ifeq ($(LIBARCH),LIBC)
ifeq ($(POSIXFL),1)
PRELUDE = $(NDK_LIBC)/imports/posixpre.o
else
PRELUDE = $(NDK_LIBC)/imports/libcpre.o
endif
CFLAGS += -align 4
else
# PRELUDE = $(NDK_CLIB)/imports/clibpre.o
# to avoid the __init_* / __deinit_* woes don't use prelude from NDK
PRELUDE = "$(MWCW_PATH)/libraries/runtime/prelude.obj"
# CFLAGS += -include "$(MWCW_PATH)/headers/nlm_clib_prefix.h"
CFLAGS += -align 1
endif
else
LD = nlmconv
LDFLAGS = -T
LIBEXT = a
CFLAGS += -m32
CFLAGS += -fno-builtin -fno-strict-aliasing
ifeq ($(findstring gcc,$(CC)),gcc)
CFLAGS += -fpcc-struct-return
endif
CFLAGS += -Wall # -pedantic
ifeq ($(LIBARCH),LIBC)
ifeq ($(POSIXFL),1)
PRELUDE = $(NDK_LIBC)/imports/posixpre.gcc.o
else
PRELUDE = $(NDK_LIBC)/imports/libcpre.gcc.o
endif
else
# PRELUDE = $(NDK_CLIB)/imports/clibpre.gcc.o
# to avoid the __init_* / __deinit_* woes don't use prelude from NDK
# http://www.gknw.net/development/mk_nlm/gcc_pre.zip
PRELUDE = $(NDK_ROOT)/pre/prelude.o
CFLAGS += -include $(NDKBASE)/nlmconv/genlm.h
endif
endif
NDK_ROOT = $(NDKBASE)/ndk
ifndef NDK_CLIB
NDK_CLIB = $(NDK_ROOT)/nwsdk
endif
ifndef NDK_LIBC
NDK_LIBC = $(NDK_ROOT)/libc
endif
ifndef NDK_LDAP
NDK_LDAP = $(NDK_ROOT)/cldapsdk/netware
endif
CURL_INC = ../../include
CURL_LIB = ../../lib
INCLUDES = -I$(CURL_INC)
ifeq ($(findstring -static,$(CFG)),-static)
LINK_STATIC = 1
endif
ifeq ($(findstring -ares,$(CFG)),-ares)
WITH_ARES = 1
endif
ifeq ($(findstring -rtmp,$(CFG)),-rtmp)
WITH_RTMP = 1
WITH_SSL = 1
WITH_ZLIB = 1
endif
ifeq ($(findstring -ssh2,$(CFG)),-ssh2)
WITH_SSH2 = 1
WITH_SSL = 1
WITH_ZLIB = 1
endif
ifeq ($(findstring -ssl,$(CFG)),-ssl)
WITH_SSL = 1
endif
ifeq ($(findstring -zlib,$(CFG)),-zlib)
WITH_ZLIB = 1
endif
ifeq ($(findstring -idn,$(CFG)),-idn)
WITH_IDN = 1
endif
ifeq ($(findstring -ipv6,$(CFG)),-ipv6)
ENABLE_IPV6 = 1
endif
ifdef LINK_STATIC
LDLIBS = $(CURL_LIB)/libcurl.$(LIBEXT)
ifdef WITH_ARES
LDLIBS += $(LIBCARES_PATH)/libcares.$(LIBEXT)
endif
else
MODULES = libcurl.nlm
IMPORTS = @$(CURL_LIB)/libcurl.imp
endif
ifdef WITH_SSH2
# INCLUDES += -I$(LIBSSH2_PATH)/include
ifdef LINK_STATIC
LDLIBS += $(LIBSSH2_PATH)/nw/libssh2.$(LIBEXT)
else
MODULES += libssh2.nlm
IMPORTS += @$(LIBSSH2_PATH)/nw/libssh2.imp
endif
endif
ifdef WITH_RTMP
# INCLUDES += -I$(LIBRTMP_PATH)
ifdef LINK_STATIC
LDLIBS += $(LIBRTMP_PATH)/librtmp/librtmp.$(LIBEXT)
endif
endif
ifdef WITH_SSL
INCLUDES += -I$(OPENSSL_PATH)/outinc_nw_$(LIBARCH_L)
LDLIBS += $(OPENSSL_PATH)/out_nw_$(LIBARCH_L)/ssl.$(LIBEXT)
LDLIBS += $(OPENSSL_PATH)/out_nw_$(LIBARCH_L)/crypto.$(LIBEXT)
IMPORTS += GetProcessSwitchCount RunningProcess
else
endif
ifdef WITH_ZLIB
# INCLUDES += -I$(ZLIB_PATH)
ifdef LINK_STATIC
LDLIBS += $(ZLIB_PATH)/nw/$(LIBARCH)/libz.$(LIBEXT)
else
MODULES += libz.nlm
IMPORTS += @$(ZLIB_PATH)/nw/$(LIBARCH)/libz.imp
endif
endif
ifdef WITH_IDN
# INCLUDES += -I$(LIBIDN_PATH)/include
LDLIBS += $(LIBIDN_PATH)/lib/libidn.$(LIBEXT)
endif
ifeq ($(LIBARCH),LIBC)
INCLUDES += -I$(NDK_LIBC)/include
# INCLUDES += -I$(NDK_LIBC)/include/nks
# INCLUDES += -I$(NDK_LIBC)/include/winsock
CFLAGS += -D_POSIX_SOURCE
else
INCLUDES += -I$(NDK_CLIB)/include/nlm
# INCLUDES += -I$(NDK_CLIB)/include
endif
ifndef DISABLE_LDAP
# INCLUDES += -I$(NDK_LDAP)/$(LIBARCH_L)/inc
endif
CFLAGS += $(INCLUDES)
ifeq ($(MTSAFE),YES)
XDCOPT = -n
endif
ifeq ($(MTSAFE),NO)
XDCOPT = -u
endif
ifdef XDCOPT
XDCDATA = $(OBJDIR)/$(TARGET).xdc
endif
ifeq ($(findstring /sh,$(SHELL)),/sh)
DL = '
DS = /
PCT = %
#-include $(NDKBASE)/nlmconv/ncpfs.inc
else
DS = \\
PCT = %%
endif
# Makefile.inc provides the CSOURCES and HHEADERS defines
include Makefile.inc
check_PROGRAMS := $(patsubst %,%.nlm,$(strip $(check_PROGRAMS)))
.PRECIOUS: $(OBJDIR)/%.o $(OBJDIR)/%.def $(OBJDIR)/%.xdc
all: prebuild $(check_PROGRAMS)
prebuild: $(OBJDIR) $(OBJDIR)/version.inc
$(OBJDIR)/%.o: %.c
@echo Compiling $<
$(CC) $(CFLAGS) -c $< -o $@
$(OBJDIR)/version.inc: $(CURL_INC)/curl/curlver.h $(OBJDIR)
@echo Creating $@
@$(AWK) -f ../../packages/NetWare/get_ver.awk $< > $@
install: $(INSTDIR) all
@$(CP) $(check_PROGRAMS) $(INSTDIR)
clean:
-$(RM) -r $(OBJDIR)
distclean vclean: clean
-$(RM) $(check_PROGRAMS)
$(OBJDIR) $(INSTDIR):
@$(MKDIR) $@
%.nlm: $(OBJDIR)/%.o $(OBJDIR)/%.def $(XDCDATA)
@echo Linking $@
@-$(RM) $@
@$(LD) $(LDFLAGS) $(OBJDIR)/$(@:.nlm=.def)
$(OBJDIR)/%.xdc: Makefile.netware
@echo Creating $@
@$(MPKXDC) $(XDCOPT) $@
$(OBJDIR)/%.def: Makefile.netware
@echo $(DL)# DEF file for linking with $(LD)$(DL) > $@
@echo $(DL)# Do not edit this file - it is created by Make!$(DL) >> $@
@echo $(DL)# All your changes will be lost!!$(DL) >> $@
@echo $(DL)#$(DL) >> $@
@echo $(DL)copyright "$(COPYR)"$(DL) >> $@
@echo $(DL)description "$(DESCR) $(notdir $(@:.def=)) Example"$(DL) >> $@
@echo $(DL)version $(VERSION)$(DL) >> $@
ifdef NLMTYPE
@echo $(DL)type $(NLMTYPE)$(DL) >> $@
endif
ifdef STACK
@echo $(DL)stack $(STACK)$(DL) >> $@
endif
ifdef SCREEN
@echo $(DL)screenname "$(DESCR) $(notdir $(@:.def=)) $(SCREEN)"$(DL) >> $@
else
@echo $(DL)screenname "DEFAULT"$(DL) >> $@
endif
ifneq ($(DB),NDEBUG)
@echo $(DL)debug$(DL) >> $@
endif
@echo $(DL)threadname "_$(notdir $(@:.def=))"$(DL) >> $@
ifdef XDCDATA
@echo $(DL)xdcdata $(XDCDATA)$(DL) >> $@
endif
ifeq ($(LDRING),0)
@echo $(DL)flag_on 16$(DL) >> $@
endif
ifeq ($(LDRING),3)
@echo $(DL)flag_on 512$(DL) >> $@
endif
ifeq ($(LIBARCH),CLIB)
@echo $(DL)start _Prelude$(DL) >> $@
@echo $(DL)exit _Stop$(DL) >> $@
@echo $(DL)import @$(NDK_CLIB)/imports/clib.imp$(DL) >> $@
@echo $(DL)import @$(NDK_CLIB)/imports/threads.imp$(DL) >> $@
@echo $(DL)import @$(NDK_CLIB)/imports/nlmlib.imp$(DL) >> $@
@echo $(DL)import @$(NDK_CLIB)/imports/socklib.imp$(DL) >> $@
@echo $(DL)module clib$(DL) >> $@
ifndef DISABLE_LDAP
@echo $(DL)import @$(NDK_LDAP)/clib/imports/ldapsdk.imp$(DL) >> $@
@echo $(DL)import @$(NDK_LDAP)/clib/imports/ldapssl.imp$(DL) >> $@
# @echo $(DL)import @$(NDK_LDAP)/clib/imports/ldapx.imp$(DL) >> $@
@echo $(DL)module ldapsdk ldapssl$(DL) >> $@
endif
else
ifeq ($(POSIXFL),1)
@echo $(DL)flag_on 4194304$(DL) >> $@
endif
@echo $(DL)flag_on 64$(DL) >> $@
@echo $(DL)pseudopreemption$(DL) >> $@
ifeq ($(findstring posixpre,$(PRELUDE)),posixpre)
@echo $(DL)start POSIX_Start$(DL) >> $@
@echo $(DL)exit POSIX_Stop$(DL) >> $@
@echo $(DL)check POSIX_CheckUnload$(DL) >> $@
else
@echo $(DL)start _LibCPrelude$(DL) >> $@
@echo $(DL)exit _LibCPostlude$(DL) >> $@
@echo $(DL)check _LibCCheckUnload$(DL) >> $@
endif
@echo $(DL)import @$(NDK_LIBC)/imports/libc.imp$(DL) >> $@
@echo $(DL)import @$(NDK_LIBC)/imports/netware.imp$(DL) >> $@
@echo $(DL)module libc$(DL) >> $@
ifndef DISABLE_LDAP
@echo $(DL)import @$(NDK_LDAP)/libc/imports/lldapsdk.imp$(DL) >> $@
@echo $(DL)import @$(NDK_LDAP)/libc/imports/lldapssl.imp$(DL) >> $@
# @echo $(DL)import @$(NDK_LDAP)/libc/imports/lldapx.imp$(DL) >> $@
@echo $(DL)module lldapsdk lldapssl$(DL) >> $@
endif
endif
ifdef MODULES
@echo $(DL)module $(MODULES)$(DL) >> $@
endif
ifdef EXPORTS
@echo $(DL)export $(EXPORTS)$(DL) >> $@
endif
ifdef IMPORTS
@echo $(DL)import $(IMPORTS)$(DL) >> $@
endif
ifeq ($(findstring nlmconv,$(LD)),nlmconv)
@echo $(DL)input $(PRELUDE)$(DL) >> $@
@echo $(DL)input $(@:.def=.o)$(DL) >> $@
ifdef LDLIBS
@echo $(DL)input $(LDLIBS)$(DL) >> $@
endif
@echo $(DL)output $(notdir $(@:.def=.nlm))$(DL) >> $@
endif
+34
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# libcurl examples
This directory is for libcurl programming examples. They are meant to show
some simple steps on how you can build your own application to take full
advantage of libcurl.
If you end up with other small but still useful example sources, please mail
them for submission in future packages and on the website.
## Building
The Makefile.example is an example makefile that could be used to build these
examples. Just edit the file according to your system and requirements first.
Most examples should build fine using a command line like this:
`curl-config --cc --cflags --libs` -o example example.c
Some compilers don't like having the arguments in this order but instead
want you do reorganize them like:
`curl-config --cc` -o example example.c `curl-config --cflags --libs`
**Please** do not use the `curl.se` site as a test target for your
libcurl applications/experiments. Even if some of the examples use that site
as a URL at some places, it doesn't mean that the URLs work or that we expect
you to actually torture our website with your tests! Thanks.
## Examples
Each example source code file is designed to be and work stand-alone and
rather self-explanatory. The examples may at times lack the level of error
checks you need in a real world, but that is then only for the sake of
readability: to make the code smaller and easier to follow.
+56
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@@ -0,0 +1,56 @@
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2020, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* <DESC>
* HTTP with Alt-Svc support
* </DESC>
*/
#include <stdio.h>
#include <curl/curl.h>
int main(void)
{
CURL *curl;
CURLcode res;
curl = curl_easy_init();
if(curl) {
curl_easy_setopt(curl, CURLOPT_URL, "https://example.com");
/* cache the alternatives in this file */
curl_easy_setopt(curl, CURLOPT_ALTSVC, "altsvc.txt");
/* restrict which HTTP versions to use alternatives */
curl_easy_setopt(curl, CURLOPT_ALTSVC_CTRL, (long)
CURLALTSVC_H1|CURLALTSVC_H2|CURLALTSVC_H3);
/* Perform the request, res will get the return code */
res = curl_easy_perform(curl);
/* Check for errors */
if(res != CURLE_OK)
fprintf(stderr, "curl_easy_perform() failed: %s\n",
curl_easy_strerror(res));
/* always cleanup */
curl_easy_cleanup(curl);
}
return 0;
}
+171
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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2020, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* <DESC>
* HTTP PUT upload with authentication using "any" method. libcurl picks the
* one the server supports/wants.
* </DESC>
*/
#include <stdio.h>
#include <fcntl.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <curl/curl.h>
#ifdef WIN32
# include <io.h>
# define READ_3RD_ARG unsigned int
#else
# include <unistd.h>
# define READ_3RD_ARG size_t
#endif
#if LIBCURL_VERSION_NUM < 0x070c03
#error "upgrade your libcurl to no less than 7.12.3"
#endif
/*
* This example shows a HTTP PUT operation with authentication using "any"
* type. It PUTs a file given as a command line argument to the URL also given
* on the command line.
*
* Since libcurl 7.12.3, using "any" auth and POST/PUT requires a set ioctl
* function.
*
* This example also uses its own read callback.
*/
/* ioctl callback function */
static curlioerr my_ioctl(CURL *handle, curliocmd cmd, void *userp)
{
int *fdp = (int *)userp;
int fd = *fdp;
(void)handle; /* not used in here */
switch(cmd) {
case CURLIOCMD_RESTARTREAD:
/* mr libcurl kindly asks as to rewind the read data stream to start */
if(-1 == lseek(fd, 0, SEEK_SET))
/* couldn't rewind */
return CURLIOE_FAILRESTART;
break;
default: /* ignore unknown commands */
return CURLIOE_UNKNOWNCMD;
}
return CURLIOE_OK; /* success! */
}
/* read callback function, fread() look alike */
static size_t read_callback(char *ptr, size_t size, size_t nmemb, void *stream)
{
ssize_t retcode;
curl_off_t nread;
int *fdp = (int *)stream;
int fd = *fdp;
retcode = read(fd, ptr, (READ_3RD_ARG)(size * nmemb));
nread = (curl_off_t)retcode;
fprintf(stderr, "*** We read %" CURL_FORMAT_CURL_OFF_T
" bytes from file\n", nread);
return retcode;
}
int main(int argc, char **argv)
{
CURL *curl;
CURLcode res;
int hd;
struct stat file_info;
char *file;
char *url;
if(argc < 3)
return 1;
file = argv[1];
url = argv[2];
/* get the file size of the local file */
hd = open(file, O_RDONLY);
fstat(hd, &file_info);
/* In windows, this will init the winsock stuff */
curl_global_init(CURL_GLOBAL_ALL);
/* get a curl handle */
curl = curl_easy_init();
if(curl) {
/* we want to use our own read function */
curl_easy_setopt(curl, CURLOPT_READFUNCTION, read_callback);
/* which file to upload */
curl_easy_setopt(curl, CURLOPT_READDATA, (void *)&hd);
/* set the ioctl function */
curl_easy_setopt(curl, CURLOPT_IOCTLFUNCTION, my_ioctl);
/* pass the file descriptor to the ioctl callback as well */
curl_easy_setopt(curl, CURLOPT_IOCTLDATA, (void *)&hd);
/* enable "uploading" (which means PUT when doing HTTP) */
curl_easy_setopt(curl, CURLOPT_UPLOAD, 1L);
/* specify target URL, and note that this URL should also include a file
name, not only a directory (as you can do with GTP uploads) */
curl_easy_setopt(curl, CURLOPT_URL, url);
/* and give the size of the upload, this supports large file sizes
on systems that have general support for it */
curl_easy_setopt(curl, CURLOPT_INFILESIZE_LARGE,
(curl_off_t)file_info.st_size);
/* tell libcurl we can use "any" auth, which lets the lib pick one, but it
also costs one extra round-trip and possibly sending of all the PUT
data twice!!! */
curl_easy_setopt(curl, CURLOPT_HTTPAUTH, (long)CURLAUTH_ANY);
/* set user name and password for the authentication */
curl_easy_setopt(curl, CURLOPT_USERPWD, "user:password");
/* Now run off and do what you've been told! */
res = curl_easy_perform(curl);
/* Check for errors */
if(res != CURLE_OK)
fprintf(stderr, "curl_easy_perform() failed: %s\n",
curl_easy_strerror(res));
/* always cleanup */
curl_easy_cleanup(curl);
}
close(hd); /* close the local file */
curl_global_cleanup();
return 0;
}
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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2020, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* <DESC>
* CA cert in memory with OpenSSL to get a HTTPS page.
* </DESC>
*/
#include <openssl/err.h>
#include <openssl/ssl.h>
#include <curl/curl.h>
#include <stdio.h>
static size_t writefunction(void *ptr, size_t size, size_t nmemb, void *stream)
{
fwrite(ptr, size, nmemb, (FILE *)stream);
return (nmemb*size);
}
static CURLcode sslctx_function(CURL *curl, void *sslctx, void *parm)
{
CURLcode rv = CURLE_ABORTED_BY_CALLBACK;
/** This example uses two (fake) certificates **/
static const char mypem[] =
"-----BEGIN CERTIFICATE-----\n"
"MIIH0zCCBbugAwIBAgIIXsO3pkN/pOAwDQYJKoZIhvcNAQEFBQAwQjESMBAGA1UE\n"
"AwwJQUNDVlJBSVoxMRAwDgYDVQQLDAdQS0lBQ0NWMQ0wCwYDVQQKDARBQ0NWMQsw\n"
"CQYDVQQGEwJFUzAeFw0xMTA1MDUwOTM3MzdaFw0zMDEyMzEwOTM3MzdaMEIxEjAQ\n"
"BgNVBAMMCUFDQ1ZSQUlaMTEQMA4GA1UECwwHUEtJQUNDVjENMAsGA1UECgwEQUND\n"
"VjELMAkGA1UEBhMCRVMwggIiMA0GCSqGSIb3DQEBAQUAA4ICDwAwggIKAoICAQCb\n"
"qau/YUqXry+XZpp0X9DZlv3P4uRm7x8fRzPCRKPfmt4ftVTdFXxpNRFvu8gMjmoY\n"
"HtiP2Ra8EEg2XPBjs5BaXCQ316PWywlxufEBcoSwfdtNgM3802/J+Nq2DoLSRYWo\n"
"G2ioPej0RGy9ocLLA76MPhMAhN9KSMDjIgro6TenGEyxCQ0jVn8ETdkXhBilyNpA\n"
"0KIV9VMJcRz/RROE5iZe+OCIHAr8Fraocwa48GOEAqDGWuzndN9wrqODJerWx5eH\n"
"k6fGioozl2A3ED6XPm4pFdahD9GILBKfb6qkxkLrQaLjlUPTAYVtjrs78yM2x/47\n"
"JyCpZET/LtZ1qmxNYEAZSUNUY9rizLpm5U9EelvZaoErQNV/+QEnWCzI7UiRfD+m\n"
"AM/EKXMRNt6GGT6d7hmKG9Ww7Y49nCrADdg9ZuM8Db3VlFzi4qc1GwQA9j9ajepD\n"
"vV+JHanBsMyZ4k0ACtrJJ1vnE5Bc5PUzolVt3OAJTS+xJlsndQAJxGJ3KQhfnlms\n"
"tn6tn1QwIgPBHnFk/vk4CpYY3QIUrCPLBhwepH2NDd4nQeit2hW3sCPdK6jT2iWH\n"
"7ehVRE2I9DZ+hJp4rPcOVkkO1jMl1oRQQmwgEh0q1b688nCBpHBgvgW1m54ERL5h\n"
"I6zppSSMEYCUWqKiuUnSwdzRp+0xESyeGabu4VXhwOrPDYTkF7eifKXeVSUG7szA\n"
"h1xA2syVP1XgNce4hL60Xc16gwFy7ofmXx2utYXGJt/mwZrpHgJHnyqobalbz+xF\n"
"d3+YJ5oyXSrjhO7FmGYvliAd3djDJ9ew+f7Zfc3Qn48LFFhRny+Lwzgt3uiP1o2H\n"
"pPVWQxaZLPSkVrQ0uGE3ycJYgBugl6H8WY3pEfbRD0tVNEYqi4Y7\n"
"-----END CERTIFICATE-----\n"
"-----BEGIN CERTIFICATE-----\n"
"MIIFtTCCA52gAwIBAgIIYY3HhjsBggUwDQYJKoZIhvcNAQEFBQAwRDEWMBQGA1UE\n"
"AwwNQUNFRElDT00gUm9vdDEMMAoGA1UECwwDUEtJMQ8wDQYDVQQKDAZFRElDT00x\n"
"CzAJBgNVBAYTAkVTMB4XDTA4MDQxODE2MjQyMloXDTI4MDQxMzE2MjQyMlowRDEW\n"
"MBQGA1UEAwwNQUNFRElDT00gUm9vdDEMMAoGA1UECwwDUEtJMQ8wDQYDVQQKDAZF\n"
"RElDT00xCzAJBgNVBAYTAkVTMIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKC\n"
"AgEA/5KV4WgGdrQsyFhIyv2AVClVYyT/kGWbEHV7w2rbYgIB8hiGtXxaOLHkWLn7\n"
"09gtn70yN78sFW2+tfQh0hOR2QetAQXW8713zl9CgQr5auODAKgrLlUTY4HKRxx7\n"
"XBZXehuDYAQ6PmXDzQHe3qTWDLqO3tkE7hdWIpuPY/1NFgu3e3eM+SW10W2ZEi5P\n"
"gvoFNTPhNahXwOf9jU8/kzJPeGYDdwdY6ZXIfj7QeQCM8htRM5u8lOk6e25SLTKe\n"
"I6RF+7YuE7CLGLHdztUdp0J/Vb77W7tH1PwkzQSulgUV1qzOMPPKC8W64iLgpq0i\n"
"5ALudBF/TP94HTXa5gI06xgSYXcGCRZj6hitoocf8seACQl1ThCojz2GuHURwCRi\n"
"ipZ7SkXp7FnFvmuD5uHorLUwHv4FB4D54SMNUI8FmP8sX+g7tq3PgbUhh8oIKiMn\n"
"MCArz+2UW6yyetLHKKGKC5tNSixthT8Jcjxn4tncB7rrZXtaAWPWkFtPF2Y9fwsZ\n"
"o5NjEFIqnxQWWOLcpfShFosOkYuByptZ+thrkQdlVV9SH686+5DdaaVbnG0OLLb6\n"
"zqylfDJKZ0DcMDQj3dcEI2bw/FWAp/tmGYI1Z2JwOV5vx+qQQEQIHriy1tvuWacN\n"
"GHk0vFQYXlPKNFHtRQrmjseCNj6nOGOpMCwXEGCSn1WHElkQwg9naRHMTh5+Spqt\n"
"r0CodaxWkHS4oJyleW/c6RrIaQXpuvoDs3zk4E7Czp3otkYNbn5XOmeUwssfnHdK\n"
"Z05phkOTOPu220+DkdRgfks+KzgHVZhepA==\n"
"-----END CERTIFICATE-----\n";
BIO *cbio = BIO_new_mem_buf(mypem, sizeof(mypem));
X509_STORE *cts = SSL_CTX_get_cert_store((SSL_CTX *)sslctx);
int i;
STACK_OF(X509_INFO) *inf;
(void)curl;
(void)parm;
if(!cts || !cbio) {
return rv;
}
inf = PEM_X509_INFO_read_bio(cbio, NULL, NULL, NULL);
if(!inf) {
BIO_free(cbio);
return rv;
}
for(i = 0; i < sk_X509_INFO_num(inf); i++) {
X509_INFO *itmp = sk_X509_INFO_value(inf, i);
if(itmp->x509) {
X509_STORE_add_cert(cts, itmp->x509);
}
if(itmp->crl) {
X509_STORE_add_crl(cts, itmp->crl);
}
}
sk_X509_INFO_pop_free(inf, X509_INFO_free);
BIO_free(cbio);
rv = CURLE_OK;
return rv;
}
int main(void)
{
CURL *ch;
CURLcode rv;
curl_global_init(CURL_GLOBAL_ALL);
ch = curl_easy_init();
curl_easy_setopt(ch, CURLOPT_VERBOSE, 0L);
curl_easy_setopt(ch, CURLOPT_HEADER, 0L);
curl_easy_setopt(ch, CURLOPT_NOPROGRESS, 1L);
curl_easy_setopt(ch, CURLOPT_NOSIGNAL, 1L);
curl_easy_setopt(ch, CURLOPT_WRITEFUNCTION, writefunction);
curl_easy_setopt(ch, CURLOPT_WRITEDATA, stdout);
curl_easy_setopt(ch, CURLOPT_HEADERFUNCTION, writefunction);
curl_easy_setopt(ch, CURLOPT_HEADERDATA, stderr);
curl_easy_setopt(ch, CURLOPT_SSLCERTTYPE, "PEM");
curl_easy_setopt(ch, CURLOPT_SSL_VERIFYPEER, 1L);
curl_easy_setopt(ch, CURLOPT_URL, "https://www.example.com/");
/* Turn off the default CA locations, otherwise libcurl will load CA
* certificates from the locations that were detected/specified at
* build-time
*/
curl_easy_setopt(ch, CURLOPT_CAINFO, NULL);
curl_easy_setopt(ch, CURLOPT_CAPATH, NULL);
/* first try: retrieve page without ca certificates -> should fail
* unless libcurl was built --with-ca-fallback enabled at build-time
*/
rv = curl_easy_perform(ch);
if(rv == CURLE_OK)
printf("*** transfer succeeded ***\n");
else
printf("*** transfer failed ***\n");
/* use a fresh connection (optional)
* this option seriously impacts performance of multiple transfers but
* it is necessary order to demonstrate this example. recall that the
* ssl ctx callback is only called _before_ an SSL connection is
* established, therefore it will not affect existing verified SSL
* connections already in the connection cache associated with this
* handle. normally you would set the ssl ctx function before making
* any transfers, and not use this option.
*/
curl_easy_setopt(ch, CURLOPT_FRESH_CONNECT, 1L);
/* second try: retrieve page using cacerts' certificate -> will succeed
* load the certificate by installing a function doing the necessary
* "modifications" to the SSL CONTEXT just before link init
*/
curl_easy_setopt(ch, CURLOPT_SSL_CTX_FUNCTION, sslctx_function);
rv = curl_easy_perform(ch);
if(rv == CURLE_OK)
printf("*** transfer succeeded ***\n");
else
printf("*** transfer failed ***\n");
curl_easy_cleanup(ch);
curl_global_cleanup();
return rv;
}
+85
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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2020, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* <DESC>
* Extract lots of TLS certificate info.
* </DESC>
*/
#include <stdio.h>
#include <curl/curl.h>
static size_t wrfu(void *ptr, size_t size, size_t nmemb, void *stream)
{
(void)stream;
(void)ptr;
return size * nmemb;
}
int main(void)
{
CURL *curl;
CURLcode res;
curl_global_init(CURL_GLOBAL_DEFAULT);
curl = curl_easy_init();
if(curl) {
curl_easy_setopt(curl, CURLOPT_URL, "https://www.example.com/");
curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, wrfu);
curl_easy_setopt(curl, CURLOPT_SSL_VERIFYPEER, 0L);
curl_easy_setopt(curl, CURLOPT_SSL_VERIFYHOST, 0L);
curl_easy_setopt(curl, CURLOPT_VERBOSE, 0L);
curl_easy_setopt(curl, CURLOPT_CERTINFO, 1L);
res = curl_easy_perform(curl);
if(!res) {
struct curl_certinfo *certinfo;
res = curl_easy_getinfo(curl, CURLINFO_CERTINFO, &certinfo);
if(!res && certinfo) {
int i;
printf("%d certs!\n", certinfo->num_of_certs);
for(i = 0; i < certinfo->num_of_certs; i++) {
struct curl_slist *slist;
for(slist = certinfo->certinfo[i]; slist; slist = slist->next)
printf("%s\n", slist->data);
}
}
}
curl_easy_cleanup(curl);
}
curl_global_cleanup();
return 0;
}
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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2020, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* <DESC>
* Show transfer timing info after download completes.
* </DESC>
*/
/* Example source code to show how the callback function can be used to
* download data into a chunk of memory instead of storing it in a file.
* After successful download we use curl_easy_getinfo() calls to get the
* amount of downloaded bytes, the time used for the whole download, and
* the average download speed.
* On Linux you can create the download test files with:
* dd if=/dev/urandom of=file_1M.bin bs=1M count=1
*
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <curl/curl.h>
#define URL_BASE "http://speedtest.your.domain/"
#define URL_1M URL_BASE "file_1M.bin"
#define URL_2M URL_BASE "file_2M.bin"
#define URL_5M URL_BASE "file_5M.bin"
#define URL_10M URL_BASE "file_10M.bin"
#define URL_20M URL_BASE "file_20M.bin"
#define URL_50M URL_BASE "file_50M.bin"
#define URL_100M URL_BASE "file_100M.bin"
#define CHKSPEED_VERSION "1.0"
static size_t WriteCallback(void *ptr, size_t size, size_t nmemb, void *data)
{
/* we are not interested in the downloaded bytes itself,
so we only return the size we would have saved ... */
(void)ptr; /* unused */
(void)data; /* unused */
return (size_t)(size * nmemb);
}
int main(int argc, char *argv[])
{
CURL *curl_handle;
CURLcode res;
int prtall = 0, prtsep = 0, prttime = 0;
const char *url = URL_1M;
char *appname = argv[0];
if(argc > 1) {
/* parse input parameters */
for(argc--, argv++; *argv; argc--, argv++) {
if(strncasecmp(*argv, "-", 1) == 0) {
if(strncasecmp(*argv, "-H", 2) == 0) {
fprintf(stderr,
"\rUsage: %s [-m=1|2|5|10|20|50|100] [-t] [-x] [url]\n",
appname);
exit(1);
}
else if(strncasecmp(*argv, "-V", 2) == 0) {
fprintf(stderr, "\r%s %s - %s\n",
appname, CHKSPEED_VERSION, curl_version());
exit(1);
}
else if(strncasecmp(*argv, "-A", 2) == 0) {
prtall = 1;
}
else if(strncasecmp(*argv, "-X", 2) == 0) {
prtsep = 1;
}
else if(strncasecmp(*argv, "-T", 2) == 0) {
prttime = 1;
}
else if(strncasecmp(*argv, "-M=", 3) == 0) {
long m = strtol((*argv) + 3, NULL, 10);
switch(m) {
case 1:
url = URL_1M;
break;
case 2:
url = URL_2M;
break;
case 5:
url = URL_5M;
break;
case 10:
url = URL_10M;
break;
case 20:
url = URL_20M;
break;
case 50:
url = URL_50M;
break;
case 100:
url = URL_100M;
break;
default:
fprintf(stderr, "\r%s: invalid parameter %s\n",
appname, *argv + 3);
exit(1);
}
}
else {
fprintf(stderr, "\r%s: invalid or unknown option %s\n",
appname, *argv);
exit(1);
}
}
else {
url = *argv;
}
}
}
/* print separator line */
if(prtsep) {
printf("-------------------------------------------------\n");
}
/* print localtime */
if(prttime) {
time_t t = time(NULL);
printf("Localtime: %s", ctime(&t));
}
/* init libcurl */
curl_global_init(CURL_GLOBAL_ALL);
/* init the curl session */
curl_handle = curl_easy_init();
/* specify URL to get */
curl_easy_setopt(curl_handle, CURLOPT_URL, url);
/* send all data to this function */
curl_easy_setopt(curl_handle, CURLOPT_WRITEFUNCTION, WriteCallback);
/* some servers don't like requests that are made without a user-agent
field, so we provide one */
curl_easy_setopt(curl_handle, CURLOPT_USERAGENT,
"libcurl-speedchecker/" CHKSPEED_VERSION);
/* get it! */
res = curl_easy_perform(curl_handle);
if(CURLE_OK == res) {
curl_off_t val;
/* check for bytes downloaded */
res = curl_easy_getinfo(curl_handle, CURLINFO_SIZE_DOWNLOAD_T, &val);
if((CURLE_OK == res) && (val>0))
printf("Data downloaded: %" CURL_FORMAT_CURL_OFF_T " bytes.\n", val);
/* check for total download time */
res = curl_easy_getinfo(curl_handle, CURLINFO_TOTAL_TIME_T, &val);
if((CURLE_OK == res) && (val>0))
printf("Total download time: %" CURL_FORMAT_CURL_OFF_T ".%06ld sec.\n",
(val / 1000000), (long)(val % 1000000));
/* check for average download speed */
res = curl_easy_getinfo(curl_handle, CURLINFO_SPEED_DOWNLOAD_T, &val);
if((CURLE_OK == res) && (val>0))
printf("Average download speed: %" CURL_FORMAT_CURL_OFF_T
" kbyte/sec.\n", val / 1024);
if(prtall) {
/* check for name resolution time */
res = curl_easy_getinfo(curl_handle, CURLINFO_NAMELOOKUP_TIME_T, &val);
if((CURLE_OK == res) && (val>0))
printf("Name lookup time: %" CURL_FORMAT_CURL_OFF_T ".%06ld sec.\n",
(val / 1000000), (long)(val % 1000000));
/* check for connect time */
res = curl_easy_getinfo(curl_handle, CURLINFO_CONNECT_TIME_T, &val);
if((CURLE_OK == res) && (val>0))
printf("Connect time: %" CURL_FORMAT_CURL_OFF_T ".%06ld sec.\n",
(val / 1000000), (long)(val % 1000000));
}
}
else {
fprintf(stderr, "Error while fetching '%s' : %s\n",
url, curl_easy_strerror(res));
}
/* cleanup curl stuff */
curl_easy_cleanup(curl_handle);
/* we're done with libcurl, so clean it up */
curl_global_cleanup();
return 0;
}
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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2020, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* <DESC>
* Import and export cookies with COOKIELIST.
* </DESC>
*/
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <errno.h>
#include <time.h>
#include <curl/curl.h>
static void
print_cookies(CURL *curl)
{
CURLcode res;
struct curl_slist *cookies;
struct curl_slist *nc;
int i;
printf("Cookies, curl knows:\n");
res = curl_easy_getinfo(curl, CURLINFO_COOKIELIST, &cookies);
if(res != CURLE_OK) {
fprintf(stderr, "Curl curl_easy_getinfo failed: %s\n",
curl_easy_strerror(res));
exit(1);
}
nc = cookies;
i = 1;
while(nc) {
printf("[%d]: %s\n", i, nc->data);
nc = nc->next;
i++;
}
if(i == 1) {
printf("(none)\n");
}
curl_slist_free_all(cookies);
}
int
main(void)
{
CURL *curl;
CURLcode res;
curl_global_init(CURL_GLOBAL_ALL);
curl = curl_easy_init();
if(curl) {
char nline[256];
curl_easy_setopt(curl, CURLOPT_URL, "https://www.example.com/");
curl_easy_setopt(curl, CURLOPT_VERBOSE, 1L);
curl_easy_setopt(curl, CURLOPT_COOKIEFILE, ""); /* start cookie engine */
res = curl_easy_perform(curl);
if(res != CURLE_OK) {
fprintf(stderr, "Curl perform failed: %s\n", curl_easy_strerror(res));
return 1;
}
print_cookies(curl);
printf("Erasing curl's knowledge of cookies!\n");
curl_easy_setopt(curl, CURLOPT_COOKIELIST, "ALL");
print_cookies(curl);
printf("-----------------------------------------------\n"
"Setting a cookie \"PREF\" via cookie interface:\n");
#ifdef WIN32
#define snprintf _snprintf
#endif
/* Netscape format cookie */
snprintf(nline, sizeof(nline), "%s\t%s\t%s\t%s\t%lu\t%s\t%s",
".example.com", "TRUE", "/", "FALSE",
(unsigned long)time(NULL) + 31337UL,
"PREF", "hello example, i like you very much!");
res = curl_easy_setopt(curl, CURLOPT_COOKIELIST, nline);
if(res != CURLE_OK) {
fprintf(stderr, "Curl curl_easy_setopt failed: %s\n",
curl_easy_strerror(res));
return 1;
}
/* HTTP-header style cookie. If you use the Set-Cookie format and don't
specify a domain then the cookie is sent for any domain and will not be
modified, likely not what you intended. Starting in 7.43.0 any-domain
cookies will not be exported either. For more information refer to the
CURLOPT_COOKIELIST documentation.
*/
snprintf(nline, sizeof(nline),
"Set-Cookie: OLD_PREF=3d141414bf4209321; "
"expires=Sun, 17-Jan-2038 19:14:07 GMT; path=/; domain=.example.com");
res = curl_easy_setopt(curl, CURLOPT_COOKIELIST, nline);
if(res != CURLE_OK) {
fprintf(stderr, "Curl curl_easy_setopt failed: %s\n",
curl_easy_strerror(res));
return 1;
}
print_cookies(curl);
res = curl_easy_perform(curl);
if(res != CURLE_OK) {
fprintf(stderr, "Curl perform failed: %s\n", curl_easy_strerror(res));
return 1;
}
curl_easy_cleanup(curl);
}
else {
fprintf(stderr, "Curl init failed!\n");
return 1;
}
curl_global_cleanup();
return 0;
}
+217
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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Web crawler based on curl and libxml2.
* Copyright (C) 2018 - 2020 Jeroen Ooms <[email protected]>
* License: MIT
*
* To compile:
* gcc crawler.c $(pkg-config --cflags --libs libxml-2.0 libcurl)
*
*/
/* <DESC>
* Web crawler based on curl and libxml2 to stress-test curl with
* hundreds of concurrent connections to various servers.
* </DESC>
*/
/* Parameters */
int max_con = 200;
int max_total = 20000;
int max_requests = 500;
int max_link_per_page = 5;
int follow_relative_links = 0;
char *start_page = "https://www.reuters.com";
#include <libxml/HTMLparser.h>
#include <libxml/xpath.h>
#include <libxml/uri.h>
#include <curl/curl.h>
#include <stdlib.h>
#include <string.h>
#include <math.h>
#include <signal.h>
int pending_interrupt = 0;
void sighandler(int dummy)
{
pending_interrupt = 1;
}
/* resizable buffer */
typedef struct {
char *buf;
size_t size;
} memory;
size_t grow_buffer(void *contents, size_t sz, size_t nmemb, void *ctx)
{
size_t realsize = sz * nmemb;
memory *mem = (memory*) ctx;
char *ptr = realloc(mem->buf, mem->size + realsize);
if(!ptr) {
/* out of memory */
printf("not enough memory (realloc returned NULL)\n");
return 0;
}
mem->buf = ptr;
memcpy(&(mem->buf[mem->size]), contents, realsize);
mem->size += realsize;
return realsize;
}
CURL *make_handle(char *url)
{
CURL *handle = curl_easy_init();
/* Important: use HTTP2 over HTTPS */
curl_easy_setopt(handle, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_2TLS);
curl_easy_setopt(handle, CURLOPT_URL, url);
/* buffer body */
memory *mem = malloc(sizeof(memory));
mem->size = 0;
mem->buf = malloc(1);
curl_easy_setopt(handle, CURLOPT_WRITEFUNCTION, grow_buffer);
curl_easy_setopt(handle, CURLOPT_WRITEDATA, mem);
curl_easy_setopt(handle, CURLOPT_PRIVATE, mem);
/* For completeness */
curl_easy_setopt(handle, CURLOPT_ACCEPT_ENCODING, "");
curl_easy_setopt(handle, CURLOPT_TIMEOUT, 5L);
curl_easy_setopt(handle, CURLOPT_FOLLOWLOCATION, 1L);
curl_easy_setopt(handle, CURLOPT_MAXREDIRS, 10L);
curl_easy_setopt(handle, CURLOPT_CONNECTTIMEOUT, 2L);
curl_easy_setopt(handle, CURLOPT_COOKIEFILE, "");
curl_easy_setopt(handle, CURLOPT_FILETIME, 1L);
curl_easy_setopt(handle, CURLOPT_USERAGENT, "mini crawler");
curl_easy_setopt(handle, CURLOPT_HTTPAUTH, CURLAUTH_ANY);
curl_easy_setopt(handle, CURLOPT_UNRESTRICTED_AUTH, 1L);
curl_easy_setopt(handle, CURLOPT_PROXYAUTH, CURLAUTH_ANY);
curl_easy_setopt(handle, CURLOPT_EXPECT_100_TIMEOUT_MS, 0L);
return handle;
}
/* HREF finder implemented in libxml2 but could be any HTML parser */
size_t follow_links(CURLM *multi_handle, memory *mem, char *url)
{
int opts = HTML_PARSE_NOBLANKS | HTML_PARSE_NOERROR | \
HTML_PARSE_NOWARNING | HTML_PARSE_NONET;
htmlDocPtr doc = htmlReadMemory(mem->buf, mem->size, url, NULL, opts);
if(!doc)
return 0;
xmlChar *xpath = (xmlChar*) "//a/@href";
xmlXPathContextPtr context = xmlXPathNewContext(doc);
xmlXPathObjectPtr result = xmlXPathEvalExpression(xpath, context);
xmlXPathFreeContext(context);
if(!result)
return 0;
xmlNodeSetPtr nodeset = result->nodesetval;
if(xmlXPathNodeSetIsEmpty(nodeset)) {
xmlXPathFreeObject(result);
return 0;
}
size_t count = 0;
int i;
for(i = 0; i < nodeset->nodeNr; i++) {
double r = rand();
int x = r * nodeset->nodeNr / RAND_MAX;
const xmlNode *node = nodeset->nodeTab[x]->xmlChildrenNode;
xmlChar *href = xmlNodeListGetString(doc, node, 1);
if(follow_relative_links) {
xmlChar *orig = href;
href = xmlBuildURI(href, (xmlChar *) url);
xmlFree(orig);
}
char *link = (char *) href;
if(!link || strlen(link) < 20)
continue;
if(!strncmp(link, "http://", 7) || !strncmp(link, "https://", 8)) {
curl_multi_add_handle(multi_handle, make_handle(link));
if(count++ == max_link_per_page)
break;
}
xmlFree(link);
}
xmlXPathFreeObject(result);
return count;
}
int is_html(char *ctype)
{
return ctype != NULL && strlen(ctype) > 10 && strstr(ctype, "text/html");
}
int main(void)
{
signal(SIGINT, sighandler);
LIBXML_TEST_VERSION;
curl_global_init(CURL_GLOBAL_DEFAULT);
CURLM *multi_handle = curl_multi_init();
curl_multi_setopt(multi_handle, CURLMOPT_MAX_TOTAL_CONNECTIONS, max_con);
curl_multi_setopt(multi_handle, CURLMOPT_MAX_HOST_CONNECTIONS, 6L);
/* enables http/2 if available */
#ifdef CURLPIPE_MULTIPLEX
curl_multi_setopt(multi_handle, CURLMOPT_PIPELINING, CURLPIPE_MULTIPLEX);
#endif
/* sets html start page */
curl_multi_add_handle(multi_handle, make_handle(start_page));
int msgs_left;
int pending = 0;
int complete = 0;
int still_running = 1;
while(still_running && !pending_interrupt) {
int numfds;
curl_multi_wait(multi_handle, NULL, 0, 1000, &numfds);
curl_multi_perform(multi_handle, &still_running);
/* See how the transfers went */
CURLMsg *m = NULL;
while((m = curl_multi_info_read(multi_handle, &msgs_left))) {
if(m->msg == CURLMSG_DONE) {
CURL *handle = m->easy_handle;
char *url;
memory *mem;
curl_easy_getinfo(handle, CURLINFO_PRIVATE, &mem);
curl_easy_getinfo(handle, CURLINFO_EFFECTIVE_URL, &url);
if(m->data.result == CURLE_OK) {
long res_status;
curl_easy_getinfo(handle, CURLINFO_RESPONSE_CODE, &res_status);
if(res_status == 200) {
char *ctype;
curl_easy_getinfo(handle, CURLINFO_CONTENT_TYPE, &ctype);
printf("[%d] HTTP 200 (%s): %s\n", complete, ctype, url);
if(is_html(ctype) && mem->size > 100) {
if(pending < max_requests && (complete + pending) < max_total) {
pending += follow_links(multi_handle, mem, url);
still_running = 1;
}
}
}
else {
printf("[%d] HTTP %d: %s\n", complete, (int) res_status, url);
}
}
else {
printf("[%d] Connection failure: %s\n", complete, url);
}
curl_multi_remove_handle(multi_handle, handle);
curl_easy_cleanup(handle);
free(mem->buf);
free(mem);
complete++;
pending--;
}
}
}
curl_multi_cleanup(multi_handle);
curl_global_cleanup();
return 0;
}
+105
View File
@@ -0,0 +1,105 @@
/*****************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (c) 2000 - 2020 David Odin (aka DindinX) for MandrakeSoft
*/
/* <DESC>
* use the libcurl in a gtk-threaded application
* </DESC>
*/
#include <stdio.h>
#include <gtk/gtk.h>
#include <curl/curl.h>
GtkWidget *Bar;
static size_t my_write_func(void *ptr, size_t size, size_t nmemb, FILE *stream)
{
return fwrite(ptr, size, nmemb, stream);
}
static size_t my_read_func(char *ptr, size_t size, size_t nmemb, FILE *stream)
{
return fread(ptr, size, nmemb, stream);
}
static int my_progress_func(GtkWidget *bar,
double t, /* dltotal */
double d, /* dlnow */
double ultotal,
double ulnow)
{
/* printf("%d / %d (%g %%)\n", d, t, d*100.0/t);*/
gdk_threads_enter();
gtk_progress_set_value(GTK_PROGRESS(bar), d*100.0/t);
gdk_threads_leave();
return 0;
}
static void *my_thread(void *ptr)
{
CURL *curl;
curl = curl_easy_init();
if(curl) {
gchar *url = ptr;
const char *filename = "test.curl";
FILE *outfile = fopen(filename, "wb");
curl_easy_setopt(curl, CURLOPT_URL, url);
curl_easy_setopt(curl, CURLOPT_WRITEDATA, outfile);
curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, my_write_func);
curl_easy_setopt(curl, CURLOPT_READFUNCTION, my_read_func);
curl_easy_setopt(curl, CURLOPT_NOPROGRESS, 0L);
curl_easy_setopt(curl, CURLOPT_PROGRESSFUNCTION, my_progress_func);
curl_easy_setopt(curl, CURLOPT_PROGRESSDATA, Bar);
curl_easy_perform(curl);
fclose(outfile);
/* always cleanup */
curl_easy_cleanup(curl);
}
return NULL;
}
int main(int argc, char **argv)
{
GtkWidget *Window, *Frame, *Frame2;
GtkAdjustment *adj;
/* Must initialize libcurl before any threads are started */
curl_global_init(CURL_GLOBAL_ALL);
/* Init thread */
g_thread_init(NULL);
gtk_init(&argc, &argv);
Window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
Frame = gtk_frame_new(NULL);
gtk_frame_set_shadow_type(GTK_FRAME(Frame), GTK_SHADOW_OUT);
gtk_container_add(GTK_CONTAINER(Window), Frame);
Frame2 = gtk_frame_new(NULL);
gtk_frame_set_shadow_type(GTK_FRAME(Frame2), GTK_SHADOW_IN);
gtk_container_add(GTK_CONTAINER(Frame), Frame2);
gtk_container_set_border_width(GTK_CONTAINER(Frame2), 5);
adj = (GtkAdjustment*)gtk_adjustment_new(0, 0, 100, 0, 0, 0);
Bar = gtk_progress_bar_new_with_adjustment(adj);
gtk_container_add(GTK_CONTAINER(Frame2), Bar);
gtk_widget_show_all(Window);
if(!g_thread_create(&my_thread, argv[1], FALSE, NULL) != 0)
g_warning("can't create the thread");
gdk_threads_enter();
gtk_main();
gdk_threads_leave();
return 0;
}
+574
View File
@@ -0,0 +1,574 @@
/*
curlx.c Authors: Peter Sylvester, Jean-Paul Merlin
This is a little program to demonstrate the usage of
- an ssl initialisation callback setting a user key and trustbases
coming from a pkcs12 file
- using an ssl application callback to find a URI in the
certificate presented during ssl session establishment.
*/
/* <DESC>
* demonstrates use of SSL context callback, requires OpenSSL
* </DESC>
*/
/*
* Copyright (c) 2003 - 2020 The OpenEvidence Project. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions, the following disclaimer,
* and the original OpenSSL and SSLeay Licences below.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions, the following disclaimer
* and the original OpenSSL and SSLeay Licences below in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. All advertising materials mentioning features or use of this
* software must display the following acknowledgments:
* "This product includes software developed by the Openevidence Project
* for use in the OpenEvidence Toolkit. (http://www.openevidence.org/)"
* This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit (https://www.openssl.org/)"
* This product includes cryptographic software written by Eric Young
* ([email protected]). This product includes software written by Tim
* Hudson ([email protected])."
*
* 4. The names "OpenEvidence Toolkit" and "OpenEvidence Project" must not be
* used to endorse or promote products derived from this software without
* prior written permission. For written permission, please contact
* [email protected].
*
* 5. Products derived from this software may not be called "OpenEvidence"
* nor may "OpenEvidence" appear in their names without prior written
* permission of the OpenEvidence Project.
*
* 6. Redistributions of any form whatsoever must retain the following
* acknowledgments:
* "This product includes software developed by the OpenEvidence Project
* for use in the OpenEvidence Toolkit (http://www.openevidence.org/)
* This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit (https://www.openssl.org/)"
* This product includes cryptographic software written by Eric Young
* ([email protected]). This product includes software written by Tim
* Hudson ([email protected])."
*
* THIS SOFTWARE IS PROVIDED BY THE OpenEvidence PROJECT ``AS IS'' AND ANY
* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenEvidence PROJECT OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
* ====================================================================
*
* This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit (https://www.openssl.org/)
* This product includes cryptographic software written by Eric Young
* ([email protected]). This product includes software written by Tim
* Hudson ([email protected]).
*
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <curl/curl.h>
#include <openssl/x509v3.h>
#include <openssl/x509_vfy.h>
#include <openssl/crypto.h>
#include <openssl/lhash.h>
#include <openssl/objects.h>
#include <openssl/err.h>
#include <openssl/evp.h>
#include <openssl/x509.h>
#include <openssl/pkcs12.h>
#include <openssl/bio.h>
#include <openssl/ssl.h>
static const char *curlx_usage[]={
"usage: curlx args\n",
" -p12 arg - tia file ",
" -envpass arg - environment variable which content the tia private"
" key password",
" -out arg - output file (response)- default stdout",
" -in arg - input file (request)- default stdin",
" -connect arg - URL of the server for the connection ex:"
" www.openevidence.org",
" -mimetype arg - MIME type for data in ex : application/timestamp-query"
" or application/dvcs -default application/timestamp-query",
" -acceptmime arg - MIME type acceptable for the response ex : "
"application/timestamp-response or application/dvcs -default none",
" -accesstype arg - an Object identifier in an AIA/SIA method, e.g."
" AD_DVCS or ad_timestamping",
NULL
};
/*
./curlx -p12 psy.p12 -envpass XX -in request -verbose -accesstype AD_DVCS
-mimetype application/dvcs -acceptmime application/dvcs -out response
*/
/*
* We use this ZERO_NULL to avoid picky compiler warnings,
* when assigning a NULL pointer to a function pointer var.
*/
#define ZERO_NULL 0
/* This is a context that we pass to all callbacks */
typedef struct sslctxparm_st {
unsigned char *p12file;
const char *pst;
PKCS12 *p12;
EVP_PKEY *pkey;
X509 *usercert;
STACK_OF(X509) * ca;
CURL *curl;
BIO *errorbio;
int accesstype;
int verbose;
} sslctxparm;
/* some helper function. */
static char *ia5string(ASN1_IA5STRING *ia5)
{
char *tmp;
if(!ia5 || !ia5->length)
return NULL;
tmp = OPENSSL_malloc(ia5->length + 1);
memcpy(tmp, ia5->data, ia5->length);
tmp[ia5->length] = 0;
return tmp;
}
/* A convenience routine to get an access URI. */
static unsigned char *my_get_ext(X509 *cert, const int type,
int extensiontype)
{
int i;
STACK_OF(ACCESS_DESCRIPTION) * accessinfo;
accessinfo = X509_get_ext_d2i(cert, extensiontype, NULL, NULL);
if(!sk_ACCESS_DESCRIPTION_num(accessinfo))
return NULL;
for(i = 0; i < sk_ACCESS_DESCRIPTION_num(accessinfo); i++) {
ACCESS_DESCRIPTION * ad = sk_ACCESS_DESCRIPTION_value(accessinfo, i);
if(OBJ_obj2nid(ad->method) == type) {
if(ad->location->type == GEN_URI) {
return ia5string(ad->location->d.ia5);
}
return NULL;
}
}
return NULL;
}
/* This is an application verification call back, it does not
perform any addition verification but tries to find a URL
in the presented certificate. If found, this will become
the URL to be used in the POST.
*/
static int ssl_app_verify_callback(X509_STORE_CTX *ctx, void *arg)
{
sslctxparm * p = (sslctxparm *) arg;
int ok;
if(p->verbose > 2)
BIO_printf(p->errorbio, "entering ssl_app_verify_callback\n");
ok = X509_verify_cert(ctx);
if(ok && ctx->cert) {
unsigned char *accessinfo;
if(p->verbose > 1)
X509_print_ex(p->errorbio, ctx->cert, 0, 0);
accessinfo = my_get_ext(ctx->cert, p->accesstype, NID_sinfo_access);
if(accessinfo) {
if(p->verbose)
BIO_printf(p->errorbio, "Setting URL from SIA to: %s\n", accessinfo);
curl_easy_setopt(p->curl, CURLOPT_URL, accessinfo);
}
else if(accessinfo = my_get_ext(ctx->cert, p->accesstype,
NID_info_access)) {
if(p->verbose)
BIO_printf(p->errorbio, "Setting URL from AIA to: %s\n", accessinfo);
curl_easy_setopt(p->curl, CURLOPT_URL, accessinfo);
}
}
if(p->verbose > 2)
BIO_printf(p->errorbio, "leaving ssl_app_verify_callback with %d\n", ok);
return ok;
}
/* The SSL initialisation callback. The callback sets:
- a private key and certificate
- a trusted ca certificate
- a preferred cipherlist
- an application verification callback (the function above)
*/
static CURLcode sslctxfun(CURL *curl, void *sslctx, void *parm)
{
sslctxparm *p = (sslctxparm *) parm;
SSL_CTX *ctx = (SSL_CTX *) sslctx;
if(!SSL_CTX_use_certificate(ctx, p->usercert)) {
BIO_printf(p->errorbio, "SSL_CTX_use_certificate problem\n");
goto err;
}
if(!SSL_CTX_use_PrivateKey(ctx, p->pkey)) {
BIO_printf(p->errorbio, "SSL_CTX_use_PrivateKey\n");
goto err;
}
if(!SSL_CTX_check_private_key(ctx)) {
BIO_printf(p->errorbio, "SSL_CTX_check_private_key\n");
goto err;
}
SSL_CTX_set_quiet_shutdown(ctx, 1);
SSL_CTX_set_cipher_list(ctx, "RC4-MD5");
SSL_CTX_set_mode(ctx, SSL_MODE_AUTO_RETRY);
X509_STORE_add_cert(SSL_CTX_get_cert_store(ctx),
sk_X509_value(p->ca, sk_X509_num(p->ca)-1));
SSL_CTX_set_verify_depth(ctx, 2);
SSL_CTX_set_verify(ctx, SSL_VERIFY_PEER, ZERO_NULL);
SSL_CTX_set_cert_verify_callback(ctx, ssl_app_verify_callback, parm);
return CURLE_OK;
err:
ERR_print_errors(p->errorbio);
return CURLE_SSL_CERTPROBLEM;
}
int main(int argc, char **argv)
{
BIO* in = NULL;
BIO* out = NULL;
char *outfile = NULL;
char *infile = NULL;
int tabLength = 100;
char *binaryptr;
char *mimetype = NULL;
char *mimetypeaccept = NULL;
char *contenttype;
const char **pp;
unsigned char *hostporturl = NULL;
BIO *p12bio;
char **args = argv + 1;
unsigned char *serverurl;
sslctxparm p;
char *response;
CURLcode res;
struct curl_slist *headers = NULL;
int badarg = 0;
binaryptr = malloc(tabLength);
memset(&p, '\0', sizeof(p));
p.errorbio = BIO_new_fp(stderr, BIO_NOCLOSE);
curl_global_init(CURL_GLOBAL_DEFAULT);
/* we need some more for the P12 decoding */
OpenSSL_add_all_ciphers();
OpenSSL_add_all_digests();
ERR_load_crypto_strings();
while(*args && *args[0] == '-') {
if(!strcmp (*args, "-in")) {
if(args[1]) {
infile = *(++args);
}
else
badarg = 1;
}
else if(!strcmp (*args, "-out")) {
if(args[1]) {
outfile = *(++args);
}
else
badarg = 1;
}
else if(!strcmp (*args, "-p12")) {
if(args[1]) {
p.p12file = *(++args);
}
else
badarg = 1;
}
else if(strcmp(*args, "-envpass") == 0) {
if(args[1]) {
p.pst = getenv(*(++args));
}
else
badarg = 1;
}
else if(strcmp(*args, "-connect") == 0) {
if(args[1]) {
hostporturl = *(++args);
}
else
badarg = 1;
}
else if(strcmp(*args, "-mimetype") == 0) {
if(args[1]) {
mimetype = *(++args);
}
else
badarg = 1;
}
else if(strcmp(*args, "-acceptmime") == 0) {
if(args[1]) {
mimetypeaccept = *(++args);
}
else
badarg = 1;
}
else if(strcmp(*args, "-accesstype") == 0) {
if(args[1]) {
p.accesstype = OBJ_obj2nid(OBJ_txt2obj(*++args, 0));
if(p.accesstype == 0)
badarg = 1;
}
else
badarg = 1;
}
else if(strcmp(*args, "-verbose") == 0) {
p.verbose++;
}
else
badarg = 1;
args++;
}
if(mimetype == NULL || mimetypeaccept == NULL || p.p12file == NULL)
badarg = 1;
if(badarg) {
for(pp = curlx_usage; (*pp != NULL); pp++)
BIO_printf(p.errorbio, "%s\n", *pp);
BIO_printf(p.errorbio, "\n");
goto err;
}
/* set input */
in = BIO_new(BIO_s_file());
if(in == NULL) {
BIO_printf(p.errorbio, "Error setting input bio\n");
goto err;
}
else if(infile == NULL)
BIO_set_fp(in, stdin, BIO_NOCLOSE|BIO_FP_TEXT);
else if(BIO_read_filename(in, infile) <= 0) {
BIO_printf(p.errorbio, "Error opening input file %s\n", infile);
BIO_free(in);
goto err;
}
/* set output */
out = BIO_new(BIO_s_file());
if(out == NULL) {
BIO_printf(p.errorbio, "Error setting output bio.\n");
goto err;
}
else if(outfile == NULL)
BIO_set_fp(out, stdout, BIO_NOCLOSE|BIO_FP_TEXT);
else if(BIO_write_filename(out, outfile) <= 0) {
BIO_printf(p.errorbio, "Error opening output file %s\n", outfile);
BIO_free(out);
goto err;
}
p.errorbio = BIO_new_fp(stderr, BIO_NOCLOSE);
p.curl = curl_easy_init();
if(!p.curl) {
BIO_printf(p.errorbio, "Cannot init curl lib\n");
goto err;
}
p12bio = BIO_new_file(p.p12file, "rb");
if(!p12bio) {
BIO_printf(p.errorbio, "Error opening P12 file %s\n", p.p12file);
goto err;
}
p.p12 = d2i_PKCS12_bio(p12bio, NULL);
if(!p.p12) {
BIO_printf(p.errorbio, "Cannot decode P12 structure %s\n", p.p12file);
goto err;
}
p.ca = NULL;
if(!(PKCS12_parse (p.p12, p.pst, &(p.pkey), &(p.usercert), &(p.ca) ) )) {
BIO_printf(p.errorbio, "Invalid P12 structure in %s\n", p.p12file);
goto err;
}
if(sk_X509_num(p.ca) <= 0) {
BIO_printf(p.errorbio, "No trustworthy CA given.%s\n", p.p12file);
goto err;
}
if(p.verbose > 1)
X509_print_ex(p.errorbio, p.usercert, 0, 0);
/* determine URL to go */
if(hostporturl) {
size_t len = strlen(hostporturl) + 9;
serverurl = malloc(len);
snprintf(serverurl, len, "https://%s", hostporturl);
}
else if(p.accesstype != 0) { /* see whether we can find an AIA or SIA for a
given access type */
serverurl = my_get_ext(p.usercert, p.accesstype, NID_info_access);
if(!serverurl) {
int j = 0;
BIO_printf(p.errorbio, "no service URL in user cert "
"searching in others certificates\n");
for(j = 0; j<sk_X509_num(p.ca); j++) {
serverurl = my_get_ext(sk_X509_value(p.ca, j), p.accesstype,
NID_info_access);
if(serverurl)
break;
serverurl = my_get_ext(sk_X509_value(p.ca, j), p.accesstype,
NID_sinfo_access);
if(serverurl)
break;
}
}
}
if(!serverurl) {
BIO_printf(p.errorbio, "no service URL in certificates,"
" check '-accesstype (AD_DVCS | ad_timestamping)'"
" or use '-connect'\n");
goto err;
}
if(p.verbose)
BIO_printf(p.errorbio, "Service URL: <%s>\n", serverurl);
curl_easy_setopt(p.curl, CURLOPT_URL, serverurl);
/* Now specify the POST binary data */
curl_easy_setopt(p.curl, CURLOPT_POSTFIELDS, binaryptr);
curl_easy_setopt(p.curl, CURLOPT_POSTFIELDSIZE, (long)tabLength);
/* pass our list of custom made headers */
contenttype = malloc(15 + strlen(mimetype));
snprintf(contenttype, 15 + strlen(mimetype), "Content-type: %s", mimetype);
headers = curl_slist_append(headers, contenttype);
curl_easy_setopt(p.curl, CURLOPT_HTTPHEADER, headers);
if(p.verbose)
BIO_printf(p.errorbio, "Service URL: <%s>\n", serverurl);
{
FILE *outfp;
BIO_get_fp(out, &outfp);
curl_easy_setopt(p.curl, CURLOPT_WRITEDATA, outfp);
}
res = curl_easy_setopt(p.curl, CURLOPT_SSL_CTX_FUNCTION, sslctxfun);
if(res != CURLE_OK)
BIO_printf(p.errorbio, "%d %s=%d %d\n", __LINE__,
"CURLOPT_SSL_CTX_FUNCTION", CURLOPT_SSL_CTX_FUNCTION, res);
curl_easy_setopt(p.curl, CURLOPT_SSL_CTX_DATA, &p);
{
char *ptr;
int lu; int i = 0;
while((lu = BIO_read(in, &binaryptr[i], tabLength-i)) >0) {
i += lu;
if(i == tabLength) {
tabLength += 100;
ptr = realloc(binaryptr, tabLength); /* should be more careful */
if(!ptr) {
/* out of memory */
BIO_printf(p.errorbio, "out of memory (realloc returned NULL)\n");
goto fail;
}
binaryptr = ptr;
ptr = NULL;
}
}
tabLength = i;
}
/* Now specify the POST binary data */
curl_easy_setopt(p.curl, CURLOPT_POSTFIELDS, binaryptr);
curl_easy_setopt(p.curl, CURLOPT_POSTFIELDSIZE, (long)tabLength);
/* Perform the request, res will get the return code */
BIO_printf(p.errorbio, "%d %s %d\n", __LINE__, "curl_easy_perform",
res = curl_easy_perform(p.curl));
{
curl_easy_getinfo(p.curl, CURLINFO_CONTENT_TYPE, &response);
if(mimetypeaccept && p.verbose) {
if(!strcmp(mimetypeaccept, response))
BIO_printf(p.errorbio, "the response has a correct mimetype : %s\n",
response);
else
BIO_printf(p.errorbio, "the response doesn\'t have an acceptable "
"mime type, it is %s instead of %s\n",
response, mimetypeaccept);
}
}
/*** code d'erreur si accept mime ***, egalement code return HTTP != 200 ***/
/* free the header list*/
fail:
curl_slist_free_all(headers);
/* always cleanup */
curl_easy_cleanup(p.curl);
BIO_free(in);
BIO_free(out);
return (EXIT_SUCCESS);
err: BIO_printf(p.errorbio, "error");
exit(1);
}
+154
View File
@@ -0,0 +1,154 @@
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2020, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* <DESC>
* Show how CURLOPT_DEBUGFUNCTION can be used.
* </DESC>
*/
#include <stdio.h>
#include <curl/curl.h>
struct data {
char trace_ascii; /* 1 or 0 */
};
static
void dump(const char *text,
FILE *stream, unsigned char *ptr, size_t size,
char nohex)
{
size_t i;
size_t c;
unsigned int width = 0x10;
if(nohex)
/* without the hex output, we can fit more on screen */
width = 0x40;
fprintf(stream, "%s, %10.10lu bytes (0x%8.8lx)\n",
text, (unsigned long)size, (unsigned long)size);
for(i = 0; i<size; i += width) {
fprintf(stream, "%4.4lx: ", (unsigned long)i);
if(!nohex) {
/* hex not disabled, show it */
for(c = 0; c < width; c++)
if(i + c < size)
fprintf(stream, "%02x ", ptr[i + c]);
else
fputs(" ", stream);
}
for(c = 0; (c < width) && (i + c < size); c++) {
/* check for 0D0A; if found, skip past and start a new line of output */
if(nohex && (i + c + 1 < size) && ptr[i + c] == 0x0D &&
ptr[i + c + 1] == 0x0A) {
i += (c + 2 - width);
break;
}
fprintf(stream, "%c",
(ptr[i + c] >= 0x20) && (ptr[i + c]<0x80)?ptr[i + c]:'.');
/* check again for 0D0A, to avoid an extra \n if it's at width */
if(nohex && (i + c + 2 < size) && ptr[i + c + 1] == 0x0D &&
ptr[i + c + 2] == 0x0A) {
i += (c + 3 - width);
break;
}
}
fputc('\n', stream); /* newline */
}
fflush(stream);
}
static
int my_trace(CURL *handle, curl_infotype type,
char *data, size_t size,
void *userp)
{
struct data *config = (struct data *)userp;
const char *text;
(void)handle; /* prevent compiler warning */
switch(type) {
case CURLINFO_TEXT:
fprintf(stderr, "== Info: %s", data);
/* FALLTHROUGH */
default: /* in case a new one is introduced to shock us */
return 0;
case CURLINFO_HEADER_OUT:
text = "=> Send header";
break;
case CURLINFO_DATA_OUT:
text = "=> Send data";
break;
case CURLINFO_SSL_DATA_OUT:
text = "=> Send SSL data";
break;
case CURLINFO_HEADER_IN:
text = "<= Recv header";
break;
case CURLINFO_DATA_IN:
text = "<= Recv data";
break;
case CURLINFO_SSL_DATA_IN:
text = "<= Recv SSL data";
break;
}
dump(text, stderr, (unsigned char *)data, size, config->trace_ascii);
return 0;
}
int main(void)
{
CURL *curl;
CURLcode res;
struct data config;
config.trace_ascii = 1; /* enable ascii tracing */
curl = curl_easy_init();
if(curl) {
curl_easy_setopt(curl, CURLOPT_DEBUGFUNCTION, my_trace);
curl_easy_setopt(curl, CURLOPT_DEBUGDATA, &config);
/* the DEBUGFUNCTION has no effect until we enable VERBOSE */
curl_easy_setopt(curl, CURLOPT_VERBOSE, 1L);
/* example.com is redirected, so we tell libcurl to follow redirection */
curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, 1L);
curl_easy_setopt(curl, CURLOPT_URL, "https://example.com/");
res = curl_easy_perform(curl);
/* Check for errors */
if(res != CURLE_OK)
fprintf(stderr, "curl_easy_perform() failed: %s\n",
curl_easy_strerror(res));
/* always cleanup */
curl_easy_cleanup(curl);
}
return 0;
}
+547
View File
@@ -0,0 +1,547 @@
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2020, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* <DESC>
* multi socket API usage with epoll and timerfd
* </DESC>
*/
/* Example application source code using the multi socket interface to
* download many files at once.
*
* This example features the same basic functionality as hiperfifo.c does,
* but this uses epoll and timerfd instead of libevent.
*
* Written by Jeff Pohlmeyer, converted to use epoll by Josh Bialkowski
Requires a linux system with epoll
When running, the program creates the named pipe "hiper.fifo"
Whenever there is input into the fifo, the program reads the input as a list
of URL's and creates some new easy handles to fetch each URL via the
curl_multi "hiper" API.
Thus, you can try a single URL:
% echo http://www.yahoo.com > hiper.fifo
Or a whole bunch of them:
% cat my-url-list > hiper.fifo
The fifo buffer is handled almost instantly, so you can even add more URL's
while the previous requests are still being downloaded.
Note:
For the sake of simplicity, URL length is limited to 1023 char's !
This is purely a demo app, all retrieved data is simply discarded by the write
callback.
*/
#include <errno.h>
#include <fcntl.h>
#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/epoll.h>
#include <sys/stat.h>
#include <sys/time.h>
#include <sys/timerfd.h>
#include <sys/types.h>
#include <time.h>
#include <unistd.h>
#include <curl/curl.h>
#define MSG_OUT stdout /* Send info to stdout, change to stderr if you want */
/* Global information, common to all connections */
typedef struct _GlobalInfo
{
int epfd; /* epoll filedescriptor */
int tfd; /* timer filedescriptor */
int fifofd; /* fifo filedescriptor */
CURLM *multi;
int still_running;
FILE *input;
} GlobalInfo;
/* Information associated with a specific easy handle */
typedef struct _ConnInfo
{
CURL *easy;
char *url;
GlobalInfo *global;
char error[CURL_ERROR_SIZE];
} ConnInfo;
/* Information associated with a specific socket */
typedef struct _SockInfo
{
curl_socket_t sockfd;
CURL *easy;
int action;
long timeout;
GlobalInfo *global;
} SockInfo;
#define mycase(code) \
case code: s = __STRING(code)
/* Die if we get a bad CURLMcode somewhere */
static void mcode_or_die(const char *where, CURLMcode code)
{
if(CURLM_OK != code) {
const char *s;
switch(code) {
mycase(CURLM_BAD_HANDLE); break;
mycase(CURLM_BAD_EASY_HANDLE); break;
mycase(CURLM_OUT_OF_MEMORY); break;
mycase(CURLM_INTERNAL_ERROR); break;
mycase(CURLM_UNKNOWN_OPTION); break;
mycase(CURLM_LAST); break;
default: s = "CURLM_unknown"; break;
mycase(CURLM_BAD_SOCKET);
fprintf(MSG_OUT, "ERROR: %s returns %s\n", where, s);
/* ignore this error */
return;
}
fprintf(MSG_OUT, "ERROR: %s returns %s\n", where, s);
exit(code);
}
}
static void timer_cb(GlobalInfo* g, int revents);
/* Update the timer after curl_multi library does it's thing. Curl will
* inform us through this callback what it wants the new timeout to be,
* after it does some work. */
static int multi_timer_cb(CURLM *multi, long timeout_ms, GlobalInfo *g)
{
struct itimerspec its;
fprintf(MSG_OUT, "multi_timer_cb: Setting timeout to %ld ms\n", timeout_ms);
if(timeout_ms > 0) {
its.it_interval.tv_sec = 0;
its.it_interval.tv_nsec = 0;
its.it_value.tv_sec = timeout_ms / 1000;
its.it_value.tv_nsec = (timeout_ms % 1000) * 1000 * 1000;
}
else if(timeout_ms == 0) {
/* libcurl wants us to timeout now, however setting both fields of
* new_value.it_value to zero disarms the timer. The closest we can
* do is to schedule the timer to fire in 1 ns. */
its.it_interval.tv_sec = 0;
its.it_interval.tv_nsec = 0;
its.it_value.tv_sec = 0;
its.it_value.tv_nsec = 1;
}
else {
memset(&its, 0, sizeof(struct itimerspec));
}
timerfd_settime(g->tfd, /*flags=*/0, &its, NULL);
return 0;
}
/* Check for completed transfers, and remove their easy handles */
static void check_multi_info(GlobalInfo *g)
{
char *eff_url;
CURLMsg *msg;
int msgs_left;
ConnInfo *conn;
CURL *easy;
CURLcode res;
fprintf(MSG_OUT, "REMAINING: %d\n", g->still_running);
while((msg = curl_multi_info_read(g->multi, &msgs_left))) {
if(msg->msg == CURLMSG_DONE) {
easy = msg->easy_handle;
res = msg->data.result;
curl_easy_getinfo(easy, CURLINFO_PRIVATE, &conn);
curl_easy_getinfo(easy, CURLINFO_EFFECTIVE_URL, &eff_url);
fprintf(MSG_OUT, "DONE: %s => (%d) %s\n", eff_url, res, conn->error);
curl_multi_remove_handle(g->multi, easy);
free(conn->url);
curl_easy_cleanup(easy);
free(conn);
}
}
}
/* Called by libevent when we get action on a multi socket filedescriptor*/
static void event_cb(GlobalInfo *g, int fd, int revents)
{
CURLMcode rc;
struct itimerspec its;
int action = ((revents & EPOLLIN) ? CURL_CSELECT_IN : 0) |
((revents & EPOLLOUT) ? CURL_CSELECT_OUT : 0);
rc = curl_multi_socket_action(g->multi, fd, action, &g->still_running);
mcode_or_die("event_cb: curl_multi_socket_action", rc);
check_multi_info(g);
if(g->still_running <= 0) {
fprintf(MSG_OUT, "last transfer done, kill timeout\n");
memset(&its, 0, sizeof(struct itimerspec));
timerfd_settime(g->tfd, 0, &its, NULL);
}
}
/* Called by main loop when our timeout expires */
static void timer_cb(GlobalInfo* g, int revents)
{
CURLMcode rc;
uint64_t count = 0;
ssize_t err = 0;
err = read(g->tfd, &count, sizeof(uint64_t));
if(err == -1) {
/* Note that we may call the timer callback even if the timerfd isn't
* readable. It's possible that there are multiple events stored in the
* epoll buffer (i.e. the timer may have fired multiple times). The
* event count is cleared after the first call so future events in the
* epoll buffer will fail to read from the timer. */
if(errno == EAGAIN) {
fprintf(MSG_OUT, "EAGAIN on tfd %d\n", g->tfd);
return;
}
}
if(err != sizeof(uint64_t)) {
fprintf(stderr, "read(tfd) == %ld", err);
perror("read(tfd)");
}
rc = curl_multi_socket_action(g->multi,
CURL_SOCKET_TIMEOUT, 0, &g->still_running);
mcode_or_die("timer_cb: curl_multi_socket_action", rc);
check_multi_info(g);
}
/* Clean up the SockInfo structure */
static void remsock(SockInfo *f, GlobalInfo* g)
{
if(f) {
if(f->sockfd) {
if(epoll_ctl(g->epfd, EPOLL_CTL_DEL, f->sockfd, NULL))
fprintf(stderr, "EPOLL_CTL_DEL failed for fd: %d : %s\n",
f->sockfd, strerror(errno));
}
free(f);
}
}
/* Assign information to a SockInfo structure */
static void setsock(SockInfo *f, curl_socket_t s, CURL *e, int act,
GlobalInfo *g)
{
struct epoll_event ev;
int kind = ((act & CURL_POLL_IN) ? EPOLLIN : 0) |
((act & CURL_POLL_OUT) ? EPOLLOUT : 0);
if(f->sockfd) {
if(epoll_ctl(g->epfd, EPOLL_CTL_DEL, f->sockfd, NULL))
fprintf(stderr, "EPOLL_CTL_DEL failed for fd: %d : %s\n",
f->sockfd, strerror(errno));
}
f->sockfd = s;
f->action = act;
f->easy = e;
ev.events = kind;
ev.data.fd = s;
if(epoll_ctl(g->epfd, EPOLL_CTL_ADD, s, &ev))
fprintf(stderr, "EPOLL_CTL_ADD failed for fd: %d : %s\n",
s, strerror(errno));
}
/* Initialize a new SockInfo structure */
static void addsock(curl_socket_t s, CURL *easy, int action, GlobalInfo *g)
{
SockInfo *fdp = (SockInfo*)calloc(sizeof(SockInfo), 1);
fdp->global = g;
setsock(fdp, s, easy, action, g);
curl_multi_assign(g->multi, s, fdp);
}
/* CURLMOPT_SOCKETFUNCTION */
static int sock_cb(CURL *e, curl_socket_t s, int what, void *cbp, void *sockp)
{
GlobalInfo *g = (GlobalInfo*) cbp;
SockInfo *fdp = (SockInfo*) sockp;
const char *whatstr[]={ "none", "IN", "OUT", "INOUT", "REMOVE" };
fprintf(MSG_OUT,
"socket callback: s=%d e=%p what=%s ", s, e, whatstr[what]);
if(what == CURL_POLL_REMOVE) {
fprintf(MSG_OUT, "\n");
remsock(fdp, g);
}
else {
if(!fdp) {
fprintf(MSG_OUT, "Adding data: %s\n", whatstr[what]);
addsock(s, e, what, g);
}
else {
fprintf(MSG_OUT,
"Changing action from %s to %s\n",
whatstr[fdp->action], whatstr[what]);
setsock(fdp, s, e, what, g);
}
}
return 0;
}
/* CURLOPT_WRITEFUNCTION */
static size_t write_cb(void *ptr, size_t size, size_t nmemb, void *data)
{
(void)ptr;
(void)data;
return size * nmemb;
}
/* CURLOPT_PROGRESSFUNCTION */
static int prog_cb(void *p, double dltotal, double dlnow, double ult,
double uln)
{
ConnInfo *conn = (ConnInfo *)p;
(void)ult;
(void)uln;
fprintf(MSG_OUT, "Progress: %s (%g/%g)\n", conn->url, dlnow, dltotal);
return 0;
}
/* Create a new easy handle, and add it to the global curl_multi */
static void new_conn(char *url, GlobalInfo *g)
{
ConnInfo *conn;
CURLMcode rc;
conn = (ConnInfo*)calloc(1, sizeof(ConnInfo));
conn->error[0]='\0';
conn->easy = curl_easy_init();
if(!conn->easy) {
fprintf(MSG_OUT, "curl_easy_init() failed, exiting!\n");
exit(2);
}
conn->global = g;
conn->url = strdup(url);
curl_easy_setopt(conn->easy, CURLOPT_URL, conn->url);
curl_easy_setopt(conn->easy, CURLOPT_WRITEFUNCTION, write_cb);
curl_easy_setopt(conn->easy, CURLOPT_WRITEDATA, conn);
curl_easy_setopt(conn->easy, CURLOPT_VERBOSE, 1L);
curl_easy_setopt(conn->easy, CURLOPT_ERRORBUFFER, conn->error);
curl_easy_setopt(conn->easy, CURLOPT_PRIVATE, conn);
curl_easy_setopt(conn->easy, CURLOPT_NOPROGRESS, 0L);
curl_easy_setopt(conn->easy, CURLOPT_PROGRESSFUNCTION, prog_cb);
curl_easy_setopt(conn->easy, CURLOPT_PROGRESSDATA, conn);
curl_easy_setopt(conn->easy, CURLOPT_FOLLOWLOCATION, 1L);
curl_easy_setopt(conn->easy, CURLOPT_LOW_SPEED_TIME, 3L);
curl_easy_setopt(conn->easy, CURLOPT_LOW_SPEED_LIMIT, 10L);
fprintf(MSG_OUT,
"Adding easy %p to multi %p (%s)\n", conn->easy, g->multi, url);
rc = curl_multi_add_handle(g->multi, conn->easy);
mcode_or_die("new_conn: curl_multi_add_handle", rc);
/* note that the add_handle() will set a time-out to trigger very soon so
that the necessary socket_action() call will be called by this app */
}
/* This gets called whenever data is received from the fifo */
static void fifo_cb(GlobalInfo* g, int revents)
{
char s[1024];
long int rv = 0;
int n = 0;
do {
s[0]='\0';
rv = fscanf(g->input, "%1023s%n", s, &n);
s[n]='\0';
if(n && s[0]) {
new_conn(s, g); /* if we read a URL, go get it! */
}
else
break;
} while(rv != EOF);
}
/* Create a named pipe and tell libevent to monitor it */
static const char *fifo = "hiper.fifo";
static int init_fifo(GlobalInfo *g)
{
struct stat st;
curl_socket_t sockfd;
struct epoll_event epev;
fprintf(MSG_OUT, "Creating named pipe \"%s\"\n", fifo);
if(lstat (fifo, &st) == 0) {
if((st.st_mode & S_IFMT) == S_IFREG) {
errno = EEXIST;
perror("lstat");
exit(1);
}
}
unlink(fifo);
if(mkfifo (fifo, 0600) == -1) {
perror("mkfifo");
exit(1);
}
sockfd = open(fifo, O_RDWR | O_NONBLOCK, 0);
if(sockfd == -1) {
perror("open");
exit(1);
}
g->fifofd = sockfd;
g->input = fdopen(sockfd, "r");
epev.events = EPOLLIN;
epev.data.fd = sockfd;
epoll_ctl(g->epfd, EPOLL_CTL_ADD, sockfd, &epev);
fprintf(MSG_OUT, "Now, pipe some URL's into > %s\n", fifo);
return 0;
}
static void clean_fifo(GlobalInfo *g)
{
epoll_ctl(g->epfd, EPOLL_CTL_DEL, g->fifofd, NULL);
fclose(g->input);
unlink(fifo);
}
int g_should_exit_ = 0;
void SignalHandler(int signo)
{
if(signo == SIGINT) {
g_should_exit_ = 1;
}
}
int main(int argc, char **argv)
{
GlobalInfo g;
struct itimerspec its;
struct epoll_event ev;
struct epoll_event events[10];
(void)argc;
(void)argv;
g_should_exit_ = 0;
signal(SIGINT, SignalHandler);
memset(&g, 0, sizeof(GlobalInfo));
g.epfd = epoll_create1(EPOLL_CLOEXEC);
if(g.epfd == -1) {
perror("epoll_create1 failed");
exit(1);
}
g.tfd = timerfd_create(CLOCK_MONOTONIC, TFD_NONBLOCK | TFD_CLOEXEC);
if(g.tfd == -1) {
perror("timerfd_create failed");
exit(1);
}
memset(&its, 0, sizeof(struct itimerspec));
its.it_interval.tv_sec = 0;
its.it_value.tv_sec = 1;
timerfd_settime(g.tfd, 0, &its, NULL);
ev.events = EPOLLIN;
ev.data.fd = g.tfd;
epoll_ctl(g.epfd, EPOLL_CTL_ADD, g.tfd, &ev);
init_fifo(&g);
g.multi = curl_multi_init();
/* setup the generic multi interface options we want */
curl_multi_setopt(g.multi, CURLMOPT_SOCKETFUNCTION, sock_cb);
curl_multi_setopt(g.multi, CURLMOPT_SOCKETDATA, &g);
curl_multi_setopt(g.multi, CURLMOPT_TIMERFUNCTION, multi_timer_cb);
curl_multi_setopt(g.multi, CURLMOPT_TIMERDATA, &g);
/* we don't call any curl_multi_socket*() function yet as we have no handles
added! */
fprintf(MSG_OUT, "Entering wait loop\n");
fflush(MSG_OUT);
while(!g_should_exit_) {
int idx;
int err = epoll_wait(g.epfd, events,
sizeof(events)/sizeof(struct epoll_event), 10000);
if(err == -1) {
if(errno == EINTR) {
fprintf(MSG_OUT, "note: wait interrupted\n");
continue;
}
else {
perror("epoll_wait");
exit(1);
}
}
for(idx = 0; idx < err; ++idx) {
if(events[idx].data.fd == g.fifofd) {
fifo_cb(&g, events[idx].events);
}
else if(events[idx].data.fd == g.tfd) {
timer_cb(&g, events[idx].events);
}
else {
event_cb(&g, events[idx].data.fd, events[idx].events);
}
}
}
fprintf(MSG_OUT, "Exiting normally.\n");
fflush(MSG_OUT);
curl_multi_cleanup(g.multi);
clean_fifo(&g);
return 0;
}
+448
View File
@@ -0,0 +1,448 @@
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2020, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* <DESC>
* multi socket interface together with libev
* </DESC>
*/
/* Example application source code using the multi socket interface to
* download many files at once.
*
* This example features the same basic functionality as hiperfifo.c does,
* but this uses libev instead of libevent.
*
* Written by Jeff Pohlmeyer, converted to use libev by Markus Koetter
Requires libev and a (POSIX?) system that has mkfifo().
This is an adaptation of libcurl's "hipev.c" and libevent's "event-test.c"
sample programs.
When running, the program creates the named pipe "hiper.fifo"
Whenever there is input into the fifo, the program reads the input as a list
of URL's and creates some new easy handles to fetch each URL via the
curl_multi "hiper" API.
Thus, you can try a single URL:
% echo http://www.yahoo.com > hiper.fifo
Or a whole bunch of them:
% cat my-url-list > hiper.fifo
The fifo buffer is handled almost instantly, so you can even add more URL's
while the previous requests are still being downloaded.
Note:
For the sake of simplicity, URL length is limited to 1023 char's !
This is purely a demo app, all retrieved data is simply discarded by the write
callback.
*/
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <sys/time.h>
#include <time.h>
#include <unistd.h>
#include <sys/poll.h>
#include <curl/curl.h>
#include <ev.h>
#include <fcntl.h>
#include <sys/stat.h>
#include <errno.h>
#define DPRINT(x...) printf(x)
#define MSG_OUT stdout /* Send info to stdout, change to stderr if you want */
/* Global information, common to all connections */
typedef struct _GlobalInfo
{
struct ev_loop *loop;
struct ev_io fifo_event;
struct ev_timer timer_event;
CURLM *multi;
int still_running;
FILE *input;
} GlobalInfo;
/* Information associated with a specific easy handle */
typedef struct _ConnInfo
{
CURL *easy;
char *url;
GlobalInfo *global;
char error[CURL_ERROR_SIZE];
} ConnInfo;
/* Information associated with a specific socket */
typedef struct _SockInfo
{
curl_socket_t sockfd;
CURL *easy;
int action;
long timeout;
struct ev_io ev;
int evset;
GlobalInfo *global;
} SockInfo;
static void timer_cb(EV_P_ struct ev_timer *w, int revents);
/* Update the event timer after curl_multi library calls */
static int multi_timer_cb(CURLM *multi, long timeout_ms, GlobalInfo *g)
{
DPRINT("%s %li\n", __PRETTY_FUNCTION__, timeout_ms);
ev_timer_stop(g->loop, &g->timer_event);
if(timeout_ms >= 0) {
/* -1 means delete, other values are timeout times in milliseconds */
double t = timeout_ms / 1000;
ev_timer_init(&g->timer_event, timer_cb, t, 0.);
ev_timer_start(g->loop, &g->timer_event);
}
return 0;
}
/* Die if we get a bad CURLMcode somewhere */
static void mcode_or_die(const char *where, CURLMcode code)
{
if(CURLM_OK != code) {
const char *s;
switch(code) {
case CURLM_BAD_HANDLE:
s = "CURLM_BAD_HANDLE";
break;
case CURLM_BAD_EASY_HANDLE:
s = "CURLM_BAD_EASY_HANDLE";
break;
case CURLM_OUT_OF_MEMORY:
s = "CURLM_OUT_OF_MEMORY";
break;
case CURLM_INTERNAL_ERROR:
s = "CURLM_INTERNAL_ERROR";
break;
case CURLM_UNKNOWN_OPTION:
s = "CURLM_UNKNOWN_OPTION";
break;
case CURLM_LAST:
s = "CURLM_LAST";
break;
default:
s = "CURLM_unknown";
break;
case CURLM_BAD_SOCKET:
s = "CURLM_BAD_SOCKET";
fprintf(MSG_OUT, "ERROR: %s returns %s\n", where, s);
/* ignore this error */
return;
}
fprintf(MSG_OUT, "ERROR: %s returns %s\n", where, s);
exit(code);
}
}
/* Check for completed transfers, and remove their easy handles */
static void check_multi_info(GlobalInfo *g)
{
char *eff_url;
CURLMsg *msg;
int msgs_left;
ConnInfo *conn;
CURL *easy;
CURLcode res;
fprintf(MSG_OUT, "REMAINING: %d\n", g->still_running);
while((msg = curl_multi_info_read(g->multi, &msgs_left))) {
if(msg->msg == CURLMSG_DONE) {
easy = msg->easy_handle;
res = msg->data.result;
curl_easy_getinfo(easy, CURLINFO_PRIVATE, &conn);
curl_easy_getinfo(easy, CURLINFO_EFFECTIVE_URL, &eff_url);
fprintf(MSG_OUT, "DONE: %s => (%d) %s\n", eff_url, res, conn->error);
curl_multi_remove_handle(g->multi, easy);
free(conn->url);
curl_easy_cleanup(easy);
free(conn);
}
}
}
/* Called by libevent when we get action on a multi socket */
static void event_cb(EV_P_ struct ev_io *w, int revents)
{
DPRINT("%s w %p revents %i\n", __PRETTY_FUNCTION__, w, revents);
GlobalInfo *g = (GlobalInfo*) w->data;
CURLMcode rc;
int action = ((revents & EV_READ) ? CURL_POLL_IN : 0) |
((revents & EV_WRITE) ? CURL_POLL_OUT : 0);
rc = curl_multi_socket_action(g->multi, w->fd, action, &g->still_running);
mcode_or_die("event_cb: curl_multi_socket_action", rc);
check_multi_info(g);
if(g->still_running <= 0) {
fprintf(MSG_OUT, "last transfer done, kill timeout\n");
ev_timer_stop(g->loop, &g->timer_event);
}
}
/* Called by libevent when our timeout expires */
static void timer_cb(EV_P_ struct ev_timer *w, int revents)
{
DPRINT("%s w %p revents %i\n", __PRETTY_FUNCTION__, w, revents);
GlobalInfo *g = (GlobalInfo *)w->data;
CURLMcode rc;
rc = curl_multi_socket_action(g->multi, CURL_SOCKET_TIMEOUT, 0,
&g->still_running);
mcode_or_die("timer_cb: curl_multi_socket_action", rc);
check_multi_info(g);
}
/* Clean up the SockInfo structure */
static void remsock(SockInfo *f, GlobalInfo *g)
{
printf("%s \n", __PRETTY_FUNCTION__);
if(f) {
if(f->evset)
ev_io_stop(g->loop, &f->ev);
free(f);
}
}
/* Assign information to a SockInfo structure */
static void setsock(SockInfo *f, curl_socket_t s, CURL *e, int act,
GlobalInfo *g)
{
printf("%s \n", __PRETTY_FUNCTION__);
int kind = ((act & CURL_POLL_IN) ? EV_READ : 0) |
((act & CURL_POLL_OUT) ? EV_WRITE : 0);
f->sockfd = s;
f->action = act;
f->easy = e;
if(f->evset)
ev_io_stop(g->loop, &f->ev);
ev_io_init(&f->ev, event_cb, f->sockfd, kind);
f->ev.data = g;
f->evset = 1;
ev_io_start(g->loop, &f->ev);
}
/* Initialize a new SockInfo structure */
static void addsock(curl_socket_t s, CURL *easy, int action, GlobalInfo *g)
{
SockInfo *fdp = calloc(sizeof(SockInfo), 1);
fdp->global = g;
setsock(fdp, s, easy, action, g);
curl_multi_assign(g->multi, s, fdp);
}
/* CURLMOPT_SOCKETFUNCTION */
static int sock_cb(CURL *e, curl_socket_t s, int what, void *cbp, void *sockp)
{
DPRINT("%s e %p s %i what %i cbp %p sockp %p\n",
__PRETTY_FUNCTION__, e, s, what, cbp, sockp);
GlobalInfo *g = (GlobalInfo*) cbp;
SockInfo *fdp = (SockInfo*) sockp;
const char *whatstr[]={ "none", "IN", "OUT", "INOUT", "REMOVE"};
fprintf(MSG_OUT,
"socket callback: s=%d e=%p what=%s ", s, e, whatstr[what]);
if(what == CURL_POLL_REMOVE) {
fprintf(MSG_OUT, "\n");
remsock(fdp, g);
}
else {
if(!fdp) {
fprintf(MSG_OUT, "Adding data: %s\n", whatstr[what]);
addsock(s, e, what, g);
}
else {
fprintf(MSG_OUT,
"Changing action from %s to %s\n",
whatstr[fdp->action], whatstr[what]);
setsock(fdp, s, e, what, g);
}
}
return 0;
}
/* CURLOPT_WRITEFUNCTION */
static size_t write_cb(void *ptr, size_t size, size_t nmemb, void *data)
{
size_t realsize = size * nmemb;
ConnInfo *conn = (ConnInfo*) data;
(void)ptr;
(void)conn;
return realsize;
}
/* CURLOPT_PROGRESSFUNCTION */
static int prog_cb(void *p, double dltotal, double dlnow, double ult,
double uln)
{
ConnInfo *conn = (ConnInfo *)p;
(void)ult;
(void)uln;
fprintf(MSG_OUT, "Progress: %s (%g/%g)\n", conn->url, dlnow, dltotal);
return 0;
}
/* Create a new easy handle, and add it to the global curl_multi */
static void new_conn(char *url, GlobalInfo *g)
{
ConnInfo *conn;
CURLMcode rc;
conn = calloc(1, sizeof(ConnInfo));
conn->error[0]='\0';
conn->easy = curl_easy_init();
if(!conn->easy) {
fprintf(MSG_OUT, "curl_easy_init() failed, exiting!\n");
exit(2);
}
conn->global = g;
conn->url = strdup(url);
curl_easy_setopt(conn->easy, CURLOPT_URL, conn->url);
curl_easy_setopt(conn->easy, CURLOPT_WRITEFUNCTION, write_cb);
curl_easy_setopt(conn->easy, CURLOPT_WRITEDATA, conn);
curl_easy_setopt(conn->easy, CURLOPT_VERBOSE, 1L);
curl_easy_setopt(conn->easy, CURLOPT_ERRORBUFFER, conn->error);
curl_easy_setopt(conn->easy, CURLOPT_PRIVATE, conn);
curl_easy_setopt(conn->easy, CURLOPT_NOPROGRESS, 0L);
curl_easy_setopt(conn->easy, CURLOPT_PROGRESSFUNCTION, prog_cb);
curl_easy_setopt(conn->easy, CURLOPT_PROGRESSDATA, conn);
curl_easy_setopt(conn->easy, CURLOPT_LOW_SPEED_TIME, 3L);
curl_easy_setopt(conn->easy, CURLOPT_LOW_SPEED_LIMIT, 10L);
fprintf(MSG_OUT,
"Adding easy %p to multi %p (%s)\n", conn->easy, g->multi, url);
rc = curl_multi_add_handle(g->multi, conn->easy);
mcode_or_die("new_conn: curl_multi_add_handle", rc);
/* note that the add_handle() will set a time-out to trigger very soon so
that the necessary socket_action() call will be called by this app */
}
/* This gets called whenever data is received from the fifo */
static void fifo_cb(EV_P_ struct ev_io *w, int revents)
{
char s[1024];
long int rv = 0;
int n = 0;
GlobalInfo *g = (GlobalInfo *)w->data;
do {
s[0]='\0';
rv = fscanf(g->input, "%1023s%n", s, &n);
s[n]='\0';
if(n && s[0]) {
new_conn(s, g); /* if we read a URL, go get it! */
}
else
break;
} while(rv != EOF);
}
/* Create a named pipe and tell libevent to monitor it */
static int init_fifo(GlobalInfo *g)
{
struct stat st;
static const char *fifo = "hiper.fifo";
curl_socket_t sockfd;
fprintf(MSG_OUT, "Creating named pipe \"%s\"\n", fifo);
if(lstat (fifo, &st) == 0) {
if((st.st_mode & S_IFMT) == S_IFREG) {
errno = EEXIST;
perror("lstat");
exit(1);
}
}
unlink(fifo);
if(mkfifo (fifo, 0600) == -1) {
perror("mkfifo");
exit(1);
}
sockfd = open(fifo, O_RDWR | O_NONBLOCK, 0);
if(sockfd == -1) {
perror("open");
exit(1);
}
g->input = fdopen(sockfd, "r");
fprintf(MSG_OUT, "Now, pipe some URL's into > %s\n", fifo);
ev_io_init(&g->fifo_event, fifo_cb, sockfd, EV_READ);
ev_io_start(g->loop, &g->fifo_event);
return (0);
}
int main(int argc, char **argv)
{
GlobalInfo g;
(void)argc;
(void)argv;
memset(&g, 0, sizeof(GlobalInfo));
g.loop = ev_default_loop(0);
init_fifo(&g);
g.multi = curl_multi_init();
ev_timer_init(&g.timer_event, timer_cb, 0., 0.);
g.timer_event.data = &g;
g.fifo_event.data = &g;
curl_multi_setopt(g.multi, CURLMOPT_SOCKETFUNCTION, sock_cb);
curl_multi_setopt(g.multi, CURLMOPT_SOCKETDATA, &g);
curl_multi_setopt(g.multi, CURLMOPT_TIMERFUNCTION, multi_timer_cb);
curl_multi_setopt(g.multi, CURLMOPT_TIMERDATA, &g);
/* we don't call any curl_multi_socket*() function yet as we have no handles
added! */
ev_loop(g.loop, 0);
curl_multi_cleanup(g.multi);
return 0;
}
+174
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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2020, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* <DESC>
* An example demonstrating how an application can pass in a custom
* socket to libcurl to use. This example also handles the connect itself.
* </DESC>
*/
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <curl/curl.h>
#ifdef WIN32
#include <windows.h>
#include <winsock2.h>
#include <ws2tcpip.h>
#define close closesocket
#else
#include <sys/types.h> /* socket types */
#include <sys/socket.h> /* socket definitions */
#include <netinet/in.h>
#include <arpa/inet.h> /* inet (3) functions */
#include <unistd.h> /* misc. Unix functions */
#endif
#include <errno.h>
/* The IP address and port number to connect to */
#define IPADDR "127.0.0.1"
#define PORTNUM 80
#ifndef INADDR_NONE
#define INADDR_NONE 0xffffffff
#endif
static size_t write_data(void *ptr, size_t size, size_t nmemb, void *stream)
{
size_t written = fwrite(ptr, size, nmemb, (FILE *)stream);
return written;
}
static int closecb(void *clientp, curl_socket_t item)
{
(void)clientp;
printf("libcurl wants to close %d now\n", (int)item);
return 0;
}
static curl_socket_t opensocket(void *clientp,
curlsocktype purpose,
struct curl_sockaddr *address)
{
curl_socket_t sockfd;
(void)purpose;
(void)address;
sockfd = *(curl_socket_t *)clientp;
/* the actual externally set socket is passed in via the OPENSOCKETDATA
option */
return sockfd;
}
static int sockopt_callback(void *clientp, curl_socket_t curlfd,
curlsocktype purpose)
{
(void)clientp;
(void)curlfd;
(void)purpose;
/* This return code was added in libcurl 7.21.5 */
return CURL_SOCKOPT_ALREADY_CONNECTED;
}
int main(void)
{
CURL *curl;
CURLcode res;
struct sockaddr_in servaddr; /* socket address structure */
curl_socket_t sockfd;
#ifdef WIN32
WSADATA wsaData;
int initwsa = WSAStartup(MAKEWORD(2, 0), &wsaData);
if(initwsa != 0) {
printf("WSAStartup failed: %d\n", initwsa);
return 1;
}
#endif
curl = curl_easy_init();
if(curl) {
/*
* Note that libcurl will internally think that you connect to the host
* and port that you specify in the URL option.
*/
curl_easy_setopt(curl, CURLOPT_URL, "http://99.99.99.99:9999");
/* Create the socket "manually" */
sockfd = socket(AF_INET, SOCK_STREAM, 0);
if(sockfd == CURL_SOCKET_BAD) {
printf("Error creating listening socket.\n");
return 3;
}
memset(&servaddr, 0, sizeof(servaddr));
servaddr.sin_family = AF_INET;
servaddr.sin_port = htons(PORTNUM);
servaddr.sin_addr.s_addr = inet_addr(IPADDR);
if(INADDR_NONE == servaddr.sin_addr.s_addr) {
close(sockfd);
return 2;
}
if(connect(sockfd, (struct sockaddr *) &servaddr, sizeof(servaddr)) ==
-1) {
close(sockfd);
printf("client error: connect: %s\n", strerror(errno));
return 1;
}
/* no progress meter please */
curl_easy_setopt(curl, CURLOPT_NOPROGRESS, 1L);
/* send all data to this function */
curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, write_data);
/* call this function to get a socket */
curl_easy_setopt(curl, CURLOPT_OPENSOCKETFUNCTION, opensocket);
curl_easy_setopt(curl, CURLOPT_OPENSOCKETDATA, &sockfd);
/* call this function to close sockets */
curl_easy_setopt(curl, CURLOPT_CLOSESOCKETFUNCTION, closecb);
curl_easy_setopt(curl, CURLOPT_CLOSESOCKETDATA, &sockfd);
/* call this function to set options for the socket */
curl_easy_setopt(curl, CURLOPT_SOCKOPTFUNCTION, sockopt_callback);
curl_easy_setopt(curl, CURLOPT_VERBOSE, 1);
res = curl_easy_perform(curl);
curl_easy_cleanup(curl);
close(sockfd);
if(res) {
printf("libcurl error: %d\n", res);
return 4;
}
}
#ifdef WIN32
WSACleanup();
#endif
return 0;
}
+89
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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2020, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* <DESC>
* Upload to a file:// URL
* </DESC>
*/
#include <stdio.h>
#include <curl/curl.h>
#include <sys/stat.h>
#include <fcntl.h>
int main(void)
{
CURL *curl;
CURLcode res;
struct stat file_info;
curl_off_t speed_upload, total_time;
FILE *fd;
fd = fopen("debugit", "rb"); /* open file to upload */
if(!fd)
return 1; /* can't continue */
/* to get the file size */
if(fstat(fileno(fd), &file_info) != 0)
return 1; /* can't continue */
curl = curl_easy_init();
if(curl) {
/* upload to this place */
curl_easy_setopt(curl, CURLOPT_URL,
"file:///home/dast/src/curl/debug/new");
/* tell it to "upload" to the URL */
curl_easy_setopt(curl, CURLOPT_UPLOAD, 1L);
/* set where to read from (on Windows you need to use READFUNCTION too) */
curl_easy_setopt(curl, CURLOPT_READDATA, fd);
/* and give the size of the upload (optional) */
curl_easy_setopt(curl, CURLOPT_INFILESIZE_LARGE,
(curl_off_t)file_info.st_size);
/* enable verbose for easier tracing */
curl_easy_setopt(curl, CURLOPT_VERBOSE, 1L);
res = curl_easy_perform(curl);
/* Check for errors */
if(res != CURLE_OK) {
fprintf(stderr, "curl_easy_perform() failed: %s\n",
curl_easy_strerror(res));
}
else {
/* now extract transfer info */
curl_easy_getinfo(curl, CURLINFO_SPEED_UPLOAD_T, &speed_upload);
curl_easy_getinfo(curl, CURLINFO_TOTAL_TIME_T, &total_time);
fprintf(stderr, "Speed: %" CURL_FORMAT_CURL_OFF_T " bytes/sec during %"
CURL_FORMAT_CURL_OFF_T ".%06ld seconds\n",
speed_upload,
(total_time / 1000000), (long)(total_time % 1000000));
}
/* always cleanup */
curl_easy_cleanup(curl);
}
fclose(fd);
return 0;
}
+546
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/*****************************************************************************
*
* This example source code introduces a c library buffered I/O interface to
* URL reads it supports fopen(), fread(), fgets(), feof(), fclose(),
* rewind(). Supported functions have identical prototypes to their normal c
* lib namesakes and are preceaded by url_ .
*
* Using this code you can replace your program's fopen() with url_fopen()
* and fread() with url_fread() and it become possible to read remote streams
* instead of (only) local files. Local files (ie those that can be directly
* fopened) will drop back to using the underlying clib implementations
*
* See the main() function at the bottom that shows an app that retrieves from
* a specified url using fgets() and fread() and saves as two output files.
*
* Copyright (c) 2003 - 2019 Simtec Electronics
*
* Re-implemented by Vincent Sanders <[email protected]> with extensive
* reference to original curl example code
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* This example requires libcurl 7.9.7 or later.
*/
/* <DESC>
* implements an fopen() abstraction allowing reading from URLs
* </DESC>
*/
#include <stdio.h>
#include <string.h>
#ifndef WIN32
# include <sys/time.h>
#endif
#include <stdlib.h>
#include <errno.h>
#include <curl/curl.h>
enum fcurl_type_e {
CFTYPE_NONE = 0,
CFTYPE_FILE = 1,
CFTYPE_CURL = 2
};
struct fcurl_data
{
enum fcurl_type_e type; /* type of handle */
union {
CURL *curl;
FILE *file;
} handle; /* handle */
char *buffer; /* buffer to store cached data*/
size_t buffer_len; /* currently allocated buffers length */
size_t buffer_pos; /* end of data in buffer*/
int still_running; /* Is background url fetch still in progress */
};
typedef struct fcurl_data URL_FILE;
/* exported functions */
URL_FILE *url_fopen(const char *url, const char *operation);
int url_fclose(URL_FILE *file);
int url_feof(URL_FILE *file);
size_t url_fread(void *ptr, size_t size, size_t nmemb, URL_FILE *file);
char *url_fgets(char *ptr, size_t size, URL_FILE *file);
void url_rewind(URL_FILE *file);
/* we use a global one for convenience */
static CURLM *multi_handle;
/* curl calls this routine to get more data */
static size_t write_callback(char *buffer,
size_t size,
size_t nitems,
void *userp)
{
char *newbuff;
size_t rembuff;
URL_FILE *url = (URL_FILE *)userp;
size *= nitems;
rembuff = url->buffer_len - url->buffer_pos; /* remaining space in buffer */
if(size > rembuff) {
/* not enough space in buffer */
newbuff = realloc(url->buffer, url->buffer_len + (size - rembuff));
if(newbuff == NULL) {
fprintf(stderr, "callback buffer grow failed\n");
size = rembuff;
}
else {
/* realloc succeeded increase buffer size*/
url->buffer_len += size - rembuff;
url->buffer = newbuff;
}
}
memcpy(&url->buffer[url->buffer_pos], buffer, size);
url->buffer_pos += size;
return size;
}
/* use to attempt to fill the read buffer up to requested number of bytes */
static int fill_buffer(URL_FILE *file, size_t want)
{
fd_set fdread;
fd_set fdwrite;
fd_set fdexcep;
struct timeval timeout;
int rc;
CURLMcode mc; /* curl_multi_fdset() return code */
/* only attempt to fill buffer if transactions still running and buffer
* doesn't exceed required size already
*/
if((!file->still_running) || (file->buffer_pos > want))
return 0;
/* attempt to fill buffer */
do {
int maxfd = -1;
long curl_timeo = -1;
FD_ZERO(&fdread);
FD_ZERO(&fdwrite);
FD_ZERO(&fdexcep);
/* set a suitable timeout to fail on */
timeout.tv_sec = 60; /* 1 minute */
timeout.tv_usec = 0;
curl_multi_timeout(multi_handle, &curl_timeo);
if(curl_timeo >= 0) {
timeout.tv_sec = curl_timeo / 1000;
if(timeout.tv_sec > 1)
timeout.tv_sec = 1;
else
timeout.tv_usec = (curl_timeo % 1000) * 1000;
}
/* get file descriptors from the transfers */
mc = curl_multi_fdset(multi_handle, &fdread, &fdwrite, &fdexcep, &maxfd);
if(mc != CURLM_OK) {
fprintf(stderr, "curl_multi_fdset() failed, code %d.\n", mc);
break;
}
/* On success the value of maxfd is guaranteed to be >= -1. We call
select(maxfd + 1, ...); specially in case of (maxfd == -1) there are
no fds ready yet so we call select(0, ...) --or Sleep() on Windows--
to sleep 100ms, which is the minimum suggested value in the
curl_multi_fdset() doc. */
if(maxfd == -1) {
#ifdef _WIN32
Sleep(100);
rc = 0;
#else
/* Portable sleep for platforms other than Windows. */
struct timeval wait = { 0, 100 * 1000 }; /* 100ms */
rc = select(0, NULL, NULL, NULL, &wait);
#endif
}
else {
/* Note that on some platforms 'timeout' may be modified by select().
If you need access to the original value save a copy beforehand. */
rc = select(maxfd + 1, &fdread, &fdwrite, &fdexcep, &timeout);
}
switch(rc) {
case -1:
/* select error */
break;
case 0:
default:
/* timeout or readable/writable sockets */
curl_multi_perform(multi_handle, &file->still_running);
break;
}
} while(file->still_running && (file->buffer_pos < want));
return 1;
}
/* use to remove want bytes from the front of a files buffer */
static int use_buffer(URL_FILE *file, size_t want)
{
/* sort out buffer */
if(file->buffer_pos <= want) {
/* ditch buffer - write will recreate */
free(file->buffer);
file->buffer = NULL;
file->buffer_pos = 0;
file->buffer_len = 0;
}
else {
/* move rest down make it available for later */
memmove(file->buffer,
&file->buffer[want],
(file->buffer_pos - want));
file->buffer_pos -= want;
}
return 0;
}
URL_FILE *url_fopen(const char *url, const char *operation)
{
/* this code could check for URLs or types in the 'url' and
basically use the real fopen() for standard files */
URL_FILE *file;
(void)operation;
file = calloc(1, sizeof(URL_FILE));
if(!file)
return NULL;
file->handle.file = fopen(url, operation);
if(file->handle.file)
file->type = CFTYPE_FILE; /* marked as URL */
else {
file->type = CFTYPE_CURL; /* marked as URL */
file->handle.curl = curl_easy_init();
curl_easy_setopt(file->handle.curl, CURLOPT_URL, url);
curl_easy_setopt(file->handle.curl, CURLOPT_WRITEDATA, file);
curl_easy_setopt(file->handle.curl, CURLOPT_VERBOSE, 0L);
curl_easy_setopt(file->handle.curl, CURLOPT_WRITEFUNCTION, write_callback);
if(!multi_handle)
multi_handle = curl_multi_init();
curl_multi_add_handle(multi_handle, file->handle.curl);
/* lets start the fetch */
curl_multi_perform(multi_handle, &file->still_running);
if((file->buffer_pos == 0) && (!file->still_running)) {
/* if still_running is 0 now, we should return NULL */
/* make sure the easy handle is not in the multi handle anymore */
curl_multi_remove_handle(multi_handle, file->handle.curl);
/* cleanup */
curl_easy_cleanup(file->handle.curl);
free(file);
file = NULL;
}
}
return file;
}
int url_fclose(URL_FILE *file)
{
int ret = 0;/* default is good return */
switch(file->type) {
case CFTYPE_FILE:
ret = fclose(file->handle.file); /* passthrough */
break;
case CFTYPE_CURL:
/* make sure the easy handle is not in the multi handle anymore */
curl_multi_remove_handle(multi_handle, file->handle.curl);
/* cleanup */
curl_easy_cleanup(file->handle.curl);
break;
default: /* unknown or supported type - oh dear */
ret = EOF;
errno = EBADF;
break;
}
free(file->buffer);/* free any allocated buffer space */
free(file);
return ret;
}
int url_feof(URL_FILE *file)
{
int ret = 0;
switch(file->type) {
case CFTYPE_FILE:
ret = feof(file->handle.file);
break;
case CFTYPE_CURL:
if((file->buffer_pos == 0) && (!file->still_running))
ret = 1;
break;
default: /* unknown or supported type - oh dear */
ret = -1;
errno = EBADF;
break;
}
return ret;
}
size_t url_fread(void *ptr, size_t size, size_t nmemb, URL_FILE *file)
{
size_t want;
switch(file->type) {
case CFTYPE_FILE:
want = fread(ptr, size, nmemb, file->handle.file);
break;
case CFTYPE_CURL:
want = nmemb * size;
fill_buffer(file, want);
/* check if there's data in the buffer - if not fill_buffer()
* either errored or EOF */
if(!file->buffer_pos)
return 0;
/* ensure only available data is considered */
if(file->buffer_pos < want)
want = file->buffer_pos;
/* xfer data to caller */
memcpy(ptr, file->buffer, want);
use_buffer(file, want);
want = want / size; /* number of items */
break;
default: /* unknown or supported type - oh dear */
want = 0;
errno = EBADF;
break;
}
return want;
}
char *url_fgets(char *ptr, size_t size, URL_FILE *file)
{
size_t want = size - 1;/* always need to leave room for zero termination */
size_t loop;
switch(file->type) {
case CFTYPE_FILE:
ptr = fgets(ptr, (int)size, file->handle.file);
break;
case CFTYPE_CURL:
fill_buffer(file, want);
/* check if there's data in the buffer - if not fill either errored or
* EOF */
if(!file->buffer_pos)
return NULL;
/* ensure only available data is considered */
if(file->buffer_pos < want)
want = file->buffer_pos;
/*buffer contains data */
/* look for newline or eof */
for(loop = 0; loop < want; loop++) {
if(file->buffer[loop] == '\n') {
want = loop + 1;/* include newline */
break;
}
}
/* xfer data to caller */
memcpy(ptr, file->buffer, want);
ptr[want] = 0;/* always null terminate */
use_buffer(file, want);
break;
default: /* unknown or supported type - oh dear */
ptr = NULL;
errno = EBADF;
break;
}
return ptr;/*success */
}
void url_rewind(URL_FILE *file)
{
switch(file->type) {
case CFTYPE_FILE:
rewind(file->handle.file); /* passthrough */
break;
case CFTYPE_CURL:
/* halt transaction */
curl_multi_remove_handle(multi_handle, file->handle.curl);
/* restart */
curl_multi_add_handle(multi_handle, file->handle.curl);
/* ditch buffer - write will recreate - resets stream pos*/
free(file->buffer);
file->buffer = NULL;
file->buffer_pos = 0;
file->buffer_len = 0;
break;
default: /* unknown or supported type - oh dear */
break;
}
}
#define FGETSFILE "fgets.test"
#define FREADFILE "fread.test"
#define REWINDFILE "rewind.test"
/* Small main program to retrieve from a url using fgets and fread saving the
* output to two test files (note the fgets method will corrupt binary files if
* they contain 0 chars */
int main(int argc, char *argv[])
{
URL_FILE *handle;
FILE *outf;
size_t nread;
char buffer[256];
const char *url;
if(argc < 2)
url = "http://192.168.7.3/testfile";/* default to testurl */
else
url = argv[1];/* use passed url */
/* copy from url line by line with fgets */
outf = fopen(FGETSFILE, "wb+");
if(!outf) {
perror("couldn't open fgets output file\n");
return 1;
}
handle = url_fopen(url, "r");
if(!handle) {
printf("couldn't url_fopen() %s\n", url);
fclose(outf);
return 2;
}
while(!url_feof(handle)) {
url_fgets(buffer, sizeof(buffer), handle);
fwrite(buffer, 1, strlen(buffer), outf);
}
url_fclose(handle);
fclose(outf);
/* Copy from url with fread */
outf = fopen(FREADFILE, "wb+");
if(!outf) {
perror("couldn't open fread output file\n");
return 1;
}
handle = url_fopen("testfile", "r");
if(!handle) {
printf("couldn't url_fopen() testfile\n");
fclose(outf);
return 2;
}
do {
nread = url_fread(buffer, 1, sizeof(buffer), handle);
fwrite(buffer, 1, nread, outf);
} while(nread);
url_fclose(handle);
fclose(outf);
/* Test rewind */
outf = fopen(REWINDFILE, "wb+");
if(!outf) {
perror("couldn't open fread output file\n");
return 1;
}
handle = url_fopen("testfile", "r");
if(!handle) {
printf("couldn't url_fopen() testfile\n");
fclose(outf);
return 2;
}
nread = url_fread(buffer, 1, sizeof(buffer), handle);
fwrite(buffer, 1, nread, outf);
url_rewind(handle);
buffer[0]='\n';
fwrite(buffer, 1, 1, outf);
nread = url_fread(buffer, 1, sizeof(buffer), handle);
fwrite(buffer, 1, nread, outf);
url_fclose(handle);
fclose(outf);
return 0;/* all done */
}
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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2020, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* <DESC>
* FTP wildcard pattern matching
* </DESC>
*/
#include <curl/curl.h>
#include <stdio.h>
struct callback_data {
FILE *output;
};
static long file_is_coming(struct curl_fileinfo *finfo,
struct callback_data *data,
int remains);
static long file_is_downloaded(struct callback_data *data);
static size_t write_it(char *buff, size_t size, size_t nmemb,
void *cb_data);
int main(int argc, char **argv)
{
/* curl easy handle */
CURL *handle;
/* help data */
struct callback_data data = { 0 };
/* global initialization */
int rc = curl_global_init(CURL_GLOBAL_ALL);
if(rc)
return rc;
/* initialization of easy handle */
handle = curl_easy_init();
if(!handle) {
curl_global_cleanup();
return CURLE_OUT_OF_MEMORY;
}
/* turn on wildcard matching */
curl_easy_setopt(handle, CURLOPT_WILDCARDMATCH, 1L);
/* callback is called before download of concrete file started */
curl_easy_setopt(handle, CURLOPT_CHUNK_BGN_FUNCTION, file_is_coming);
/* callback is called after data from the file have been transferred */
curl_easy_setopt(handle, CURLOPT_CHUNK_END_FUNCTION, file_is_downloaded);
/* this callback will write contents into files */
curl_easy_setopt(handle, CURLOPT_WRITEFUNCTION, write_it);
/* put transfer data into callbacks */
curl_easy_setopt(handle, CURLOPT_CHUNK_DATA, &data);
curl_easy_setopt(handle, CURLOPT_WRITEDATA, &data);
/* curl_easy_setopt(handle, CURLOPT_VERBOSE, 1L); */
/* set an URL containing wildcard pattern (only in the last part) */
if(argc == 2)
curl_easy_setopt(handle, CURLOPT_URL, argv[1]);
else
curl_easy_setopt(handle, CURLOPT_URL, "ftp://example.com/test/*");
/* and start transfer! */
rc = curl_easy_perform(handle);
curl_easy_cleanup(handle);
curl_global_cleanup();
return rc;
}
static long file_is_coming(struct curl_fileinfo *finfo,
struct callback_data *data,
int remains)
{
printf("%3d %40s %10luB ", remains, finfo->filename,
(unsigned long)finfo->size);
switch(finfo->filetype) {
case CURLFILETYPE_DIRECTORY:
printf(" DIR\n");
break;
case CURLFILETYPE_FILE:
printf("FILE ");
break;
default:
printf("OTHER\n");
break;
}
if(finfo->filetype == CURLFILETYPE_FILE) {
/* do not transfer files >= 50B */
if(finfo->size > 50) {
printf("SKIPPED\n");
return CURL_CHUNK_BGN_FUNC_SKIP;
}
data->output = fopen(finfo->filename, "wb");
if(!data->output) {
return CURL_CHUNK_BGN_FUNC_FAIL;
}
}
return CURL_CHUNK_BGN_FUNC_OK;
}
static long file_is_downloaded(struct callback_data *data)
{
if(data->output) {
printf("DOWNLOADED\n");
fclose(data->output);
data->output = 0x0;
}
return CURL_CHUNK_END_FUNC_OK;
}
static size_t write_it(char *buff, size_t size, size_t nmemb,
void *cb_data)
{
struct callback_data *data = cb_data;
size_t written = 0;
if(data->output)
written = fwrite(buff, size, nmemb, data->output);
else
/* listing output */
written = fwrite(buff, size, nmemb, stdout);
return written;
}
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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2020, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include <stdio.h>
#include <curl/curl.h>
/* <DESC>
* Get a single file from an FTP server.
* </DESC>
*/
struct FtpFile {
const char *filename;
FILE *stream;
};
static size_t my_fwrite(void *buffer, size_t size, size_t nmemb, void *stream)
{
struct FtpFile *out = (struct FtpFile *)stream;
if(!out->stream) {
/* open file for writing */
out->stream = fopen(out->filename, "wb");
if(!out->stream)
return -1; /* failure, can't open file to write */
}
return fwrite(buffer, size, nmemb, out->stream);
}
int main(void)
{
CURL *curl;
CURLcode res;
struct FtpFile ftpfile = {
"curl.tar.gz", /* name to store the file as if successful */
NULL
};
curl_global_init(CURL_GLOBAL_DEFAULT);
curl = curl_easy_init();
if(curl) {
/*
* You better replace the URL with one that works!
*/
curl_easy_setopt(curl, CURLOPT_URL,
"ftp://ftp.example.com/curl/curl-7.9.2.tar.gz");
/* Define our callback to get called when there's data to be written */
curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, my_fwrite);
/* Set a pointer to our struct to pass to the callback */
curl_easy_setopt(curl, CURLOPT_WRITEDATA, &ftpfile);
/* Switch on full protocol/debug output */
curl_easy_setopt(curl, CURLOPT_VERBOSE, 1L);
res = curl_easy_perform(curl);
/* always cleanup */
curl_easy_cleanup(curl);
if(CURLE_OK != res) {
/* we failed */
fprintf(stderr, "curl told us %d\n", res);
}
}
if(ftpfile.stream)
fclose(ftpfile.stream); /* close the local file */
curl_global_cleanup();
return 0;
}
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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2020, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include <stdio.h>
#include <string.h>
#include <curl/curl.h>
/* <DESC>
* Checks a single file's size and mtime from an FTP server.
* </DESC>
*/
static size_t throw_away(void *ptr, size_t size, size_t nmemb, void *data)
{
(void)ptr;
(void)data;
/* we are not interested in the headers itself,
so we only return the size we would have saved ... */
return (size_t)(size * nmemb);
}
int main(void)
{
char ftpurl[] = "ftp://ftp.example.com/gnu/binutils/binutils-2.19.1.tar.bz2";
CURL *curl;
CURLcode res;
long filetime = -1;
double filesize = 0.0;
const char *filename = strrchr(ftpurl, '/') + 1;
curl_global_init(CURL_GLOBAL_DEFAULT);
curl = curl_easy_init();
if(curl) {
curl_easy_setopt(curl, CURLOPT_URL, ftpurl);
/* No download if the file */
curl_easy_setopt(curl, CURLOPT_NOBODY, 1L);
/* Ask for filetime */
curl_easy_setopt(curl, CURLOPT_FILETIME, 1L);
curl_easy_setopt(curl, CURLOPT_HEADERFUNCTION, throw_away);
curl_easy_setopt(curl, CURLOPT_HEADER, 0L);
/* Switch on full protocol/debug output */
/* curl_easy_setopt(curl, CURLOPT_VERBOSE, 1L); */
res = curl_easy_perform(curl);
if(CURLE_OK == res) {
/* https://curl.se/libcurl/c/curl_easy_getinfo.html */
res = curl_easy_getinfo(curl, CURLINFO_FILETIME, &filetime);
if((CURLE_OK == res) && (filetime >= 0)) {
time_t file_time = (time_t)filetime;
printf("filetime %s: %s", filename, ctime(&file_time));
}
res = curl_easy_getinfo(curl, CURLINFO_CONTENT_LENGTH_DOWNLOAD,
&filesize);
if((CURLE_OK == res) && (filesize>0.0))
printf("filesize %s: %0.0f bytes\n", filename, filesize);
}
else {
/* we failed */
fprintf(stderr, "curl told us %d\n", res);
}
/* always cleanup */
curl_easy_cleanup(curl);
}
curl_global_cleanup();
return 0;
}
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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2020, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include <stdio.h>
#include <curl/curl.h>
/* <DESC>
* Similar to ftpget.c but also stores the received response-lines
* in a separate file using our own callback!
* </DESC>
*/
static size_t
write_response(void *ptr, size_t size, size_t nmemb, void *data)
{
FILE *writehere = (FILE *)data;
return fwrite(ptr, size, nmemb, writehere);
}
#define FTPBODY "ftp-list"
#define FTPHEADERS "ftp-responses"
int main(void)
{
CURL *curl;
CURLcode res;
FILE *ftpfile;
FILE *respfile;
/* local file name to store the file as */
ftpfile = fopen(FTPBODY, "wb"); /* b is binary, needed on win32 */
/* local file name to store the FTP server's response lines in */
respfile = fopen(FTPHEADERS, "wb"); /* b is binary, needed on win32 */
curl = curl_easy_init();
if(curl) {
/* Get a file listing from sunet */
curl_easy_setopt(curl, CURLOPT_URL, "ftp://ftp.example.com/");
curl_easy_setopt(curl, CURLOPT_WRITEDATA, ftpfile);
/* If you intend to use this on windows with a libcurl DLL, you must use
CURLOPT_WRITEFUNCTION as well */
curl_easy_setopt(curl, CURLOPT_HEADERFUNCTION, write_response);
curl_easy_setopt(curl, CURLOPT_HEADERDATA, respfile);
res = curl_easy_perform(curl);
/* Check for errors */
if(res != CURLE_OK)
fprintf(stderr, "curl_easy_perform() failed: %s\n",
curl_easy_strerror(res));
/* always cleanup */
curl_easy_cleanup(curl);
}
fclose(ftpfile); /* close the local file */
fclose(respfile); /* close the response file */
return 0;
}
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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2020, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include <stdio.h>
#include <curl/curl.h>
/* <DESC>
* Get a single file from an FTPS server.
* </DESC>
*/
struct FtpFile {
const char *filename;
FILE *stream;
};
static size_t my_fwrite(void *buffer, size_t size, size_t nmemb,
void *stream)
{
struct FtpFile *out = (struct FtpFile *)stream;
if(!out->stream) {
/* open file for writing */
out->stream = fopen(out->filename, "wb");
if(!out->stream)
return -1; /* failure, can't open file to write */
}
return fwrite(buffer, size, nmemb, out->stream);
}
int main(void)
{
CURL *curl;
CURLcode res;
struct FtpFile ftpfile = {
"yourfile.bin", /* name to store the file as if successful */
NULL
};
curl_global_init(CURL_GLOBAL_DEFAULT);
curl = curl_easy_init();
if(curl) {
/*
* You better replace the URL with one that works! Note that we use an
* FTP:// URL with standard explicit FTPS. You can also do FTPS:// URLs if
* you want to do the rarer kind of transfers: implicit.
*/
curl_easy_setopt(curl, CURLOPT_URL,
"ftp://user@server/home/user/file.txt");
/* Define our callback to get called when there's data to be written */
curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, my_fwrite);
/* Set a pointer to our struct to pass to the callback */
curl_easy_setopt(curl, CURLOPT_WRITEDATA, &ftpfile);
/* We activate SSL and we require it for both control and data */
curl_easy_setopt(curl, CURLOPT_USE_SSL, CURLUSESSL_ALL);
/* Switch on full protocol/debug output */
curl_easy_setopt(curl, CURLOPT_VERBOSE, 1L);
res = curl_easy_perform(curl);
/* always cleanup */
curl_easy_cleanup(curl);
if(CURLE_OK != res) {
/* we failed */
fprintf(stderr, "curl told us %d\n", res);
}
}
if(ftpfile.stream)
fclose(ftpfile.stream); /* close the local file */
curl_global_cleanup();
return 0;
}
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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2020, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include <stdio.h>
#include <string.h>
#include <curl/curl.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <errno.h>
#ifdef WIN32
#include <io.h>
#else
#include <unistd.h>
#endif
/* <DESC>
* Performs an FTP upload and renames the file just after a successful
* transfer.
* </DESC>
*/
#define LOCAL_FILE "/tmp/uploadthis.txt"
#define UPLOAD_FILE_AS "while-uploading.txt"
#define REMOTE_URL "ftp://example.com/" UPLOAD_FILE_AS
#define RENAME_FILE_TO "renamed-and-fine.txt"
/* NOTE: if you want this example to work on Windows with libcurl as a
DLL, you MUST also provide a read callback with CURLOPT_READFUNCTION.
Failing to do so will give you a crash since a DLL may not use the
variable's memory when passed in to it from an app like this. */
static size_t read_callback(char *ptr, size_t size, size_t nmemb, void *stream)
{
curl_off_t nread;
/* in real-world cases, this would probably get this data differently
as this fread() stuff is exactly what the library already would do
by default internally */
size_t retcode = fread(ptr, size, nmemb, stream);
nread = (curl_off_t)retcode;
fprintf(stderr, "*** We read %" CURL_FORMAT_CURL_OFF_T
" bytes from file\n", nread);
return retcode;
}
int main(void)
{
CURL *curl;
CURLcode res;
FILE *hd_src;
struct stat file_info;
curl_off_t fsize;
struct curl_slist *headerlist = NULL;
static const char buf_1 [] = "RNFR " UPLOAD_FILE_AS;
static const char buf_2 [] = "RNTO " RENAME_FILE_TO;
/* get the file size of the local file */
if(stat(LOCAL_FILE, &file_info)) {
printf("Couldn't open '%s': %s\n", LOCAL_FILE, strerror(errno));
return 1;
}
fsize = (curl_off_t)file_info.st_size;
printf("Local file size: %" CURL_FORMAT_CURL_OFF_T " bytes.\n", fsize);
/* get a FILE * of the same file */
hd_src = fopen(LOCAL_FILE, "rb");
/* In windows, this will init the winsock stuff */
curl_global_init(CURL_GLOBAL_ALL);
/* get a curl handle */
curl = curl_easy_init();
if(curl) {
/* build a list of commands to pass to libcurl */
headerlist = curl_slist_append(headerlist, buf_1);
headerlist = curl_slist_append(headerlist, buf_2);
/* we want to use our own read function */
curl_easy_setopt(curl, CURLOPT_READFUNCTION, read_callback);
/* enable uploading */
curl_easy_setopt(curl, CURLOPT_UPLOAD, 1L);
/* specify target */
curl_easy_setopt(curl, CURLOPT_URL, REMOTE_URL);
/* pass in that last of FTP commands to run after the transfer */
curl_easy_setopt(curl, CURLOPT_POSTQUOTE, headerlist);
/* now specify which file to upload */
curl_easy_setopt(curl, CURLOPT_READDATA, hd_src);
/* Set the size of the file to upload (optional). If you give a *_LARGE
option you MUST make sure that the type of the passed-in argument is a
curl_off_t. If you use CURLOPT_INFILESIZE (without _LARGE) you must
make sure that to pass in a type 'long' argument. */
curl_easy_setopt(curl, CURLOPT_INFILESIZE_LARGE,
(curl_off_t)fsize);
/* Now run off and do what you've been told! */
res = curl_easy_perform(curl);
/* Check for errors */
if(res != CURLE_OK)
fprintf(stderr, "curl_easy_perform() failed: %s\n",
curl_easy_strerror(res));
/* clean up the FTP commands list */
curl_slist_free_all(headerlist);
/* always cleanup */
curl_easy_cleanup(curl);
}
fclose(hd_src); /* close the local file */
curl_global_cleanup();
return 0;
}
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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2020, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* <DESC>
* FTP upload a file from memory
* </DESC>
*/
#include <stdio.h>
#include <string.h>
#include <curl/curl.h>
static const char data[]=
"Lorem ipsum dolor sit amet, consectetur adipiscing elit. "
"Nam rhoncus odio id venenatis volutpat. Vestibulum dapibus "
"bibendum ullamcorper. Maecenas finibus elit augue, vel "
"condimentum odio maximus nec. In hac habitasse platea dictumst. "
"Vestibulum vel dolor et turpis rutrum finibus ac at nulla. "
"Vivamus nec neque ac elit blandit pretium vitae maximus ipsum. "
"Quisque sodales magna vel erat auctor, sed pellentesque nisi "
"rhoncus. Donec vehicula maximus pretium. Aliquam eu tincidunt "
"lorem.";
struct WriteThis {
const char *readptr;
size_t sizeleft;
};
static size_t read_callback(char *ptr, size_t size, size_t nmemb, void *userp)
{
struct WriteThis *upload = (struct WriteThis *)userp;
size_t max = size*nmemb;
if(max < 1)
return 0;
if(upload->sizeleft) {
size_t copylen = max;
if(copylen > upload->sizeleft)
copylen = upload->sizeleft;
memcpy(ptr, upload->readptr, copylen);
upload->readptr += copylen;
upload->sizeleft -= copylen;
return copylen;
}
return 0; /* no more data left to deliver */
}
int main(void)
{
CURL *curl;
CURLcode res;
struct WriteThis upload;
upload.readptr = data;
upload.sizeleft = strlen(data);
/* In windows, this will init the winsock stuff */
res = curl_global_init(CURL_GLOBAL_DEFAULT);
/* Check for errors */
if(res != CURLE_OK) {
fprintf(stderr, "curl_global_init() failed: %s\n",
curl_easy_strerror(res));
return 1;
}
/* get a curl handle */
curl = curl_easy_init();
if(curl) {
/* First set the URL, the target file */
curl_easy_setopt(curl, CURLOPT_URL,
"ftp://example.com/path/to/upload/file");
/* User and password for the FTP login */
curl_easy_setopt(curl, CURLOPT_USERPWD, "login:secret");
/* Now specify we want to UPLOAD data */
curl_easy_setopt(curl, CURLOPT_UPLOAD, 1L);
/* we want to use our own read function */
curl_easy_setopt(curl, CURLOPT_READFUNCTION, read_callback);
/* pointer to pass to our read function */
curl_easy_setopt(curl, CURLOPT_READDATA, &upload);
/* get verbose debug output please */
curl_easy_setopt(curl, CURLOPT_VERBOSE, 1L);
/* Set the expected upload size. */
curl_easy_setopt(curl, CURLOPT_INFILESIZE_LARGE,
(curl_off_t)upload.sizeleft);
/* Perform the request, res will get the return code */
res = curl_easy_perform(curl);
/* Check for errors */
if(res != CURLE_OK)
fprintf(stderr, "curl_easy_perform() failed: %s\n",
curl_easy_strerror(res));
/* always cleanup */
curl_easy_cleanup(curl);
}
curl_global_cleanup();
return 0;
}
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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2020, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* <DESC>
* Upload to FTP, resuming failed transfers.
* </DESC>
*/
#include <stdlib.h>
#include <stdio.h>
#include <curl/curl.h>
/* parse headers for Content-Length */
static size_t getcontentlengthfunc(void *ptr, size_t size, size_t nmemb,
void *stream)
{
int r;
long len = 0;
r = sscanf(ptr, "Content-Length: %ld\n", &len);
if(r)
*((long *) stream) = len;
return size * nmemb;
}
/* discard downloaded data */
static size_t discardfunc(void *ptr, size_t size, size_t nmemb, void *stream)
{
(void)ptr;
(void)stream;
return size * nmemb;
}
/* read data to upload */
static size_t readfunc(char *ptr, size_t size, size_t nmemb, void *stream)
{
FILE *f = stream;
size_t n;
if(ferror(f))
return CURL_READFUNC_ABORT;
n = fread(ptr, size, nmemb, f) * size;
return n;
}
static int upload(CURL *curlhandle, const char *remotepath,
const char *localpath, long timeout, long tries)
{
FILE *f;
long uploaded_len = 0;
CURLcode r = CURLE_GOT_NOTHING;
int c;
f = fopen(localpath, "rb");
if(!f) {
perror(NULL);
return 0;
}
curl_easy_setopt(curlhandle, CURLOPT_UPLOAD, 1L);
curl_easy_setopt(curlhandle, CURLOPT_URL, remotepath);
if(timeout)
curl_easy_setopt(curlhandle, CURLOPT_FTP_RESPONSE_TIMEOUT, timeout);
curl_easy_setopt(curlhandle, CURLOPT_HEADERFUNCTION, getcontentlengthfunc);
curl_easy_setopt(curlhandle, CURLOPT_HEADERDATA, &uploaded_len);
curl_easy_setopt(curlhandle, CURLOPT_WRITEFUNCTION, discardfunc);
curl_easy_setopt(curlhandle, CURLOPT_READFUNCTION, readfunc);
curl_easy_setopt(curlhandle, CURLOPT_READDATA, f);
/* disable passive mode */
curl_easy_setopt(curlhandle, CURLOPT_FTPPORT, "-");
curl_easy_setopt(curlhandle, CURLOPT_FTP_CREATE_MISSING_DIRS, 1L);
curl_easy_setopt(curlhandle, CURLOPT_VERBOSE, 1L);
for(c = 0; (r != CURLE_OK) && (c < tries); c++) {
/* are we resuming? */
if(c) { /* yes */
/* determine the length of the file already written */
/*
* With NOBODY and NOHEADER, libcurl will issue a SIZE
* command, but the only way to retrieve the result is
* to parse the returned Content-Length header. Thus,
* getcontentlengthfunc(). We need discardfunc() above
* because HEADER will dump the headers to stdout
* without it.
*/
curl_easy_setopt(curlhandle, CURLOPT_NOBODY, 1L);
curl_easy_setopt(curlhandle, CURLOPT_HEADER, 1L);
r = curl_easy_perform(curlhandle);
if(r != CURLE_OK)
continue;
curl_easy_setopt(curlhandle, CURLOPT_NOBODY, 0L);
curl_easy_setopt(curlhandle, CURLOPT_HEADER, 0L);
fseek(f, uploaded_len, SEEK_SET);
curl_easy_setopt(curlhandle, CURLOPT_APPEND, 1L);
}
else { /* no */
curl_easy_setopt(curlhandle, CURLOPT_APPEND, 0L);
}
r = curl_easy_perform(curlhandle);
}
fclose(f);
if(r == CURLE_OK)
return 1;
else {
fprintf(stderr, "%s\n", curl_easy_strerror(r));
return 0;
}
}
int main(void)
{
CURL *curlhandle = NULL;
curl_global_init(CURL_GLOBAL_ALL);
curlhandle = curl_easy_init();
upload(curlhandle, "ftp://user:[email protected]/path/file", "C:\\file",
0, 3);
curl_easy_cleanup(curlhandle);
curl_global_cleanup();
return 0;
}
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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2020, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* <DESC>
* Use getinfo to get content-type after completed transfer.
* </DESC>
*/
#include <stdio.h>
#include <curl/curl.h>
int main(void)
{
CURL *curl;
CURLcode res;
curl = curl_easy_init();
if(curl) {
curl_easy_setopt(curl, CURLOPT_URL, "https://www.example.com/");
res = curl_easy_perform(curl);
if(CURLE_OK == res) {
char *ct;
/* ask for the content-type */
res = curl_easy_getinfo(curl, CURLINFO_CONTENT_TYPE, &ct);
if((CURLE_OK == res) && ct)
printf("We received Content-Type: %s\n", ct);
}
/* always cleanup */
curl_easy_cleanup(curl);
}
return 0;
}
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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2020, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* <DESC>
* Shows how the write callback function can be used to download data into a
* chunk of memory instead of storing it in a file.
* </DESC>
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <curl/curl.h>
struct MemoryStruct {
char *memory;
size_t size;
};
static size_t
WriteMemoryCallback(void *contents, size_t size, size_t nmemb, void *userp)
{
size_t realsize = size * nmemb;
struct MemoryStruct *mem = (struct MemoryStruct *)userp;
char *ptr = realloc(mem->memory, mem->size + realsize + 1);
if(ptr == NULL) {
/* out of memory! */
printf("not enough memory (realloc returned NULL)\n");
return 0;
}
mem->memory = ptr;
memcpy(&(mem->memory[mem->size]), contents, realsize);
mem->size += realsize;
mem->memory[mem->size] = 0;
return realsize;
}
int main(void)
{
CURL *curl_handle;
CURLcode res;
struct MemoryStruct chunk;
chunk.memory = malloc(1); /* will be grown as needed by the realloc above */
chunk.size = 0; /* no data at this point */
curl_global_init(CURL_GLOBAL_ALL);
/* init the curl session */
curl_handle = curl_easy_init();
/* specify URL to get */
curl_easy_setopt(curl_handle, CURLOPT_URL, "https://www.example.com/");
/* send all data to this function */
curl_easy_setopt(curl_handle, CURLOPT_WRITEFUNCTION, WriteMemoryCallback);
/* we pass our 'chunk' struct to the callback function */
curl_easy_setopt(curl_handle, CURLOPT_WRITEDATA, (void *)&chunk);
/* some servers don't like requests that are made without a user-agent
field, so we provide one */
curl_easy_setopt(curl_handle, CURLOPT_USERAGENT, "libcurl-agent/1.0");
/* get it! */
res = curl_easy_perform(curl_handle);
/* check for errors */
if(res != CURLE_OK) {
fprintf(stderr, "curl_easy_perform() failed: %s\n",
curl_easy_strerror(res));
}
else {
/*
* Now, our chunk.memory points to a memory block that is chunk.size
* bytes big and contains the remote file.
*
* Do something nice with it!
*/
printf("%lu bytes retrieved\n", (unsigned long)chunk.size);
}
/* cleanup curl stuff */
curl_easy_cleanup(curl_handle);
free(chunk.memory);
/* we're done with libcurl, so clean it up */
curl_global_cleanup();
return 0;
}
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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2020, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* <DESC>
* Show how to extract Location: header and URL to redirect to.
* </DESC>
*/
#include <stdio.h>
#include <curl/curl.h>
int main(void)
{
CURL *curl;
CURLcode res;
char *location;
long response_code;
curl = curl_easy_init();
if(curl) {
curl_easy_setopt(curl, CURLOPT_URL, "https://example.com");
/* example.com is redirected, figure out the redirection! */
/* Perform the request, res will get the return code */
res = curl_easy_perform(curl);
/* Check for errors */
if(res != CURLE_OK)
fprintf(stderr, "curl_easy_perform() failed: %s\n",
curl_easy_strerror(res));
else {
res = curl_easy_getinfo(curl, CURLINFO_RESPONSE_CODE, &response_code);
if((res == CURLE_OK) &&
((response_code / 100) != 3)) {
/* a redirect implies a 3xx response code */
fprintf(stderr, "Not a redirect.\n");
}
else {
res = curl_easy_getinfo(curl, CURLINFO_REDIRECT_URL, &location);
if((res == CURLE_OK) && location) {
/* This is the new absolute URL that you could redirect to, even if
* the Location: response header may have been a relative URL. */
printf("Redirected to: %s\n", location);
}
}
}
/* always cleanup */
curl_easy_cleanup(curl);
}
return 0;
}
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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2020, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* <DESC>
* multi socket API usage together with with glib2
* </DESC>
*/
/* Example application source code using the multi socket interface to
* download many files at once.
*
* Written by Jeff Pohlmeyer
Requires glib-2.x and a (POSIX?) system that has mkfifo().
This is an adaptation of libcurl's "hipev.c" and libevent's "event-test.c"
sample programs, adapted to use glib's g_io_channel in place of libevent.
When running, the program creates the named pipe "hiper.fifo"
Whenever there is input into the fifo, the program reads the input as a list
of URL's and creates some new easy handles to fetch each URL via the
curl_multi "hiper" API.
Thus, you can try a single URL:
% echo http://www.yahoo.com > hiper.fifo
Or a whole bunch of them:
% cat my-url-list > hiper.fifo
The fifo buffer is handled almost instantly, so you can even add more URL's
while the previous requests are still being downloaded.
This is purely a demo app, all retrieved data is simply discarded by the write
callback.
*/
#include <glib.h>
#include <sys/stat.h>
#include <unistd.h>
#include <fcntl.h>
#include <stdlib.h>
#include <stdio.h>
#include <errno.h>
#include <curl/curl.h>
#define MSG_OUT g_print /* Change to "g_error" to write to stderr */
#define SHOW_VERBOSE 0 /* Set to non-zero for libcurl messages */
#define SHOW_PROGRESS 0 /* Set to non-zero to enable progress callback */
/* Global information, common to all connections */
typedef struct _GlobalInfo {
CURLM *multi;
guint timer_event;
int still_running;
} GlobalInfo;
/* Information associated with a specific easy handle */
typedef struct _ConnInfo {
CURL *easy;
char *url;
GlobalInfo *global;
char error[CURL_ERROR_SIZE];
} ConnInfo;
/* Information associated with a specific socket */
typedef struct _SockInfo {
curl_socket_t sockfd;
CURL *easy;
int action;
long timeout;
GIOChannel *ch;
guint ev;
GlobalInfo *global;
} SockInfo;
/* Die if we get a bad CURLMcode somewhere */
static void mcode_or_die(const char *where, CURLMcode code)
{
if(CURLM_OK != code) {
const char *s;
switch(code) {
case CURLM_BAD_HANDLE: s = "CURLM_BAD_HANDLE"; break;
case CURLM_BAD_EASY_HANDLE: s = "CURLM_BAD_EASY_HANDLE"; break;
case CURLM_OUT_OF_MEMORY: s = "CURLM_OUT_OF_MEMORY"; break;
case CURLM_INTERNAL_ERROR: s = "CURLM_INTERNAL_ERROR"; break;
case CURLM_BAD_SOCKET: s = "CURLM_BAD_SOCKET"; break;
case CURLM_UNKNOWN_OPTION: s = "CURLM_UNKNOWN_OPTION"; break;
case CURLM_LAST: s = "CURLM_LAST"; break;
default: s = "CURLM_unknown";
}
MSG_OUT("ERROR: %s returns %s\n", where, s);
exit(code);
}
}
/* Check for completed transfers, and remove their easy handles */
static void check_multi_info(GlobalInfo *g)
{
char *eff_url;
CURLMsg *msg;
int msgs_left;
ConnInfo *conn;
CURL *easy;
CURLcode res;
MSG_OUT("REMAINING: %d\n", g->still_running);
while((msg = curl_multi_info_read(g->multi, &msgs_left))) {
if(msg->msg == CURLMSG_DONE) {
easy = msg->easy_handle;
res = msg->data.result;
curl_easy_getinfo(easy, CURLINFO_PRIVATE, &conn);
curl_easy_getinfo(easy, CURLINFO_EFFECTIVE_URL, &eff_url);
MSG_OUT("DONE: %s => (%d) %s\n", eff_url, res, conn->error);
curl_multi_remove_handle(g->multi, easy);
free(conn->url);
curl_easy_cleanup(easy);
free(conn);
}
}
}
/* Called by glib when our timeout expires */
static gboolean timer_cb(gpointer data)
{
GlobalInfo *g = (GlobalInfo *)data;
CURLMcode rc;
rc = curl_multi_socket_action(g->multi,
CURL_SOCKET_TIMEOUT, 0, &g->still_running);
mcode_or_die("timer_cb: curl_multi_socket_action", rc);
check_multi_info(g);
return FALSE;
}
/* Update the event timer after curl_multi library calls */
static int update_timeout_cb(CURLM *multi, long timeout_ms, void *userp)
{
struct timeval timeout;
GlobalInfo *g = (GlobalInfo *)userp;
timeout.tv_sec = timeout_ms/1000;
timeout.tv_usec = (timeout_ms%1000)*1000;
MSG_OUT("*** update_timeout_cb %ld => %ld:%ld ***\n",
timeout_ms, timeout.tv_sec, timeout.tv_usec);
/*
* if timeout_ms is -1, just delete the timer
*
* For other values of timeout_ms, this should set or *update* the timer to
* the new value
*/
if(timeout_ms >= 0)
g->timer_event = g_timeout_add(timeout_ms, timer_cb, g);
return 0;
}
/* Called by glib when we get action on a multi socket */
static gboolean event_cb(GIOChannel *ch, GIOCondition condition, gpointer data)
{
GlobalInfo *g = (GlobalInfo*) data;
CURLMcode rc;
int fd = g_io_channel_unix_get_fd(ch);
int action =
((condition & G_IO_IN) ? CURL_CSELECT_IN : 0) |
((condition & G_IO_OUT) ? CURL_CSELECT_OUT : 0);
rc = curl_multi_socket_action(g->multi, fd, action, &g->still_running);
mcode_or_die("event_cb: curl_multi_socket_action", rc);
check_multi_info(g);
if(g->still_running) {
return TRUE;
}
else {
MSG_OUT("last transfer done, kill timeout\n");
if(g->timer_event) {
g_source_remove(g->timer_event);
}
return FALSE;
}
}
/* Clean up the SockInfo structure */
static void remsock(SockInfo *f)
{
if(!f) {
return;
}
if(f->ev) {
g_source_remove(f->ev);
}
g_free(f);
}
/* Assign information to a SockInfo structure */
static void setsock(SockInfo *f, curl_socket_t s, CURL *e, int act,
GlobalInfo *g)
{
GIOCondition kind =
((act & CURL_POLL_IN) ? G_IO_IN : 0) |
((act & CURL_POLL_OUT) ? G_IO_OUT : 0);
f->sockfd = s;
f->action = act;
f->easy = e;
if(f->ev) {
g_source_remove(f->ev);
}
f->ev = g_io_add_watch(f->ch, kind, event_cb, g);
}
/* Initialize a new SockInfo structure */
static void addsock(curl_socket_t s, CURL *easy, int action, GlobalInfo *g)
{
SockInfo *fdp = g_malloc0(sizeof(SockInfo));
fdp->global = g;
fdp->ch = g_io_channel_unix_new(s);
setsock(fdp, s, easy, action, g);
curl_multi_assign(g->multi, s, fdp);
}
/* CURLMOPT_SOCKETFUNCTION */
static int sock_cb(CURL *e, curl_socket_t s, int what, void *cbp, void *sockp)
{
GlobalInfo *g = (GlobalInfo*) cbp;
SockInfo *fdp = (SockInfo*) sockp;
static const char *whatstr[]={ "none", "IN", "OUT", "INOUT", "REMOVE" };
MSG_OUT("socket callback: s=%d e=%p what=%s ", s, e, whatstr[what]);
if(what == CURL_POLL_REMOVE) {
MSG_OUT("\n");
remsock(fdp);
}
else {
if(!fdp) {
MSG_OUT("Adding data: %s%s\n",
(what & CURL_POLL_IN) ? "READ" : "",
(what & CURL_POLL_OUT) ? "WRITE" : "");
addsock(s, e, what, g);
}
else {
MSG_OUT(
"Changing action from %d to %d\n", fdp->action, what);
setsock(fdp, s, e, what, g);
}
}
return 0;
}
/* CURLOPT_WRITEFUNCTION */
static size_t write_cb(void *ptr, size_t size, size_t nmemb, void *data)
{
size_t realsize = size * nmemb;
ConnInfo *conn = (ConnInfo*) data;
(void)ptr;
(void)conn;
return realsize;
}
/* CURLOPT_PROGRESSFUNCTION */
static int prog_cb(void *p, double dltotal, double dlnow, double ult,
double uln)
{
ConnInfo *conn = (ConnInfo *)p;
MSG_OUT("Progress: %s (%g/%g)\n", conn->url, dlnow, dltotal);
return 0;
}
/* Create a new easy handle, and add it to the global curl_multi */
static void new_conn(char *url, GlobalInfo *g)
{
ConnInfo *conn;
CURLMcode rc;
conn = g_malloc0(sizeof(ConnInfo));
conn->error[0]='\0';
conn->easy = curl_easy_init();
if(!conn->easy) {
MSG_OUT("curl_easy_init() failed, exiting!\n");
exit(2);
}
conn->global = g;
conn->url = g_strdup(url);
curl_easy_setopt(conn->easy, CURLOPT_URL, conn->url);
curl_easy_setopt(conn->easy, CURLOPT_WRITEFUNCTION, write_cb);
curl_easy_setopt(conn->easy, CURLOPT_WRITEDATA, &conn);
curl_easy_setopt(conn->easy, CURLOPT_VERBOSE, (long)SHOW_VERBOSE);
curl_easy_setopt(conn->easy, CURLOPT_ERRORBUFFER, conn->error);
curl_easy_setopt(conn->easy, CURLOPT_PRIVATE, conn);
curl_easy_setopt(conn->easy, CURLOPT_NOPROGRESS, SHOW_PROGRESS?0L:1L);
curl_easy_setopt(conn->easy, CURLOPT_PROGRESSFUNCTION, prog_cb);
curl_easy_setopt(conn->easy, CURLOPT_PROGRESSDATA, conn);
curl_easy_setopt(conn->easy, CURLOPT_FOLLOWLOCATION, 1L);
curl_easy_setopt(conn->easy, CURLOPT_CONNECTTIMEOUT, 30L);
curl_easy_setopt(conn->easy, CURLOPT_LOW_SPEED_LIMIT, 1L);
curl_easy_setopt(conn->easy, CURLOPT_LOW_SPEED_TIME, 30L);
MSG_OUT("Adding easy %p to multi %p (%s)\n", conn->easy, g->multi, url);
rc = curl_multi_add_handle(g->multi, conn->easy);
mcode_or_die("new_conn: curl_multi_add_handle", rc);
/* note that the add_handle() will set a time-out to trigger very soon so
that the necessary socket_action() call will be called by this app */
}
/* This gets called by glib whenever data is received from the fifo */
static gboolean fifo_cb(GIOChannel *ch, GIOCondition condition, gpointer data)
{
#define BUF_SIZE 1024
gsize len, tp;
gchar *buf, *tmp, *all = NULL;
GIOStatus rv;
do {
GError *err = NULL;
rv = g_io_channel_read_line(ch, &buf, &len, &tp, &err);
if(buf) {
if(tp) {
buf[tp]='\0';
}
new_conn(buf, (GlobalInfo*)data);
g_free(buf);
}
else {
buf = g_malloc(BUF_SIZE + 1);
while(TRUE) {
buf[BUF_SIZE]='\0';
g_io_channel_read_chars(ch, buf, BUF_SIZE, &len, &err);
if(len) {
buf[len]='\0';
if(all) {
tmp = all;
all = g_strdup_printf("%s%s", tmp, buf);
g_free(tmp);
}
else {
all = g_strdup(buf);
}
}
else {
break;
}
}
if(all) {
new_conn(all, (GlobalInfo*)data);
g_free(all);
}
g_free(buf);
}
if(err) {
g_error("fifo_cb: %s", err->message);
g_free(err);
break;
}
} while((len) && (rv == G_IO_STATUS_NORMAL));
return TRUE;
}
int init_fifo(void)
{
struct stat st;
const char *fifo = "hiper.fifo";
int socket;
if(lstat (fifo, &st) == 0) {
if((st.st_mode & S_IFMT) == S_IFREG) {
errno = EEXIST;
perror("lstat");
exit(1);
}
}
unlink(fifo);
if(mkfifo (fifo, 0600) == -1) {
perror("mkfifo");
exit(1);
}
socket = open(fifo, O_RDWR | O_NONBLOCK, 0);
if(socket == -1) {
perror("open");
exit(1);
}
MSG_OUT("Now, pipe some URL's into > %s\n", fifo);
return socket;
}
int main(int argc, char **argv)
{
GlobalInfo *g;
GMainLoop*gmain;
int fd;
GIOChannel* ch;
g = g_malloc0(sizeof(GlobalInfo));
fd = init_fifo();
ch = g_io_channel_unix_new(fd);
g_io_add_watch(ch, G_IO_IN, fifo_cb, g);
gmain = g_main_loop_new(NULL, FALSE);
g->multi = curl_multi_init();
curl_multi_setopt(g->multi, CURLMOPT_SOCKETFUNCTION, sock_cb);
curl_multi_setopt(g->multi, CURLMOPT_SOCKETDATA, g);
curl_multi_setopt(g->multi, CURLMOPT_TIMERFUNCTION, update_timeout_cb);
curl_multi_setopt(g->multi, CURLMOPT_TIMERDATA, g);
/* we don't call any curl_multi_socket*() function yet as we have no handles
added! */
g_main_loop_run(gmain);
curl_multi_cleanup(g->multi);
return 0;
}
+458
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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2020, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* <DESC>
* multi socket API usage with libevent 2
* </DESC>
*/
/* Example application source code using the multi socket interface to
download many files at once.
Written by Jeff Pohlmeyer
Requires libevent version 2 and a (POSIX?) system that has mkfifo().
This is an adaptation of libcurl's "hipev.c" and libevent's "event-test.c"
sample programs.
When running, the program creates the named pipe "hiper.fifo"
Whenever there is input into the fifo, the program reads the input as a list
of URL's and creates some new easy handles to fetch each URL via the
curl_multi "hiper" API.
Thus, you can try a single URL:
% echo http://www.yahoo.com > hiper.fifo
Or a whole bunch of them:
% cat my-url-list > hiper.fifo
The fifo buffer is handled almost instantly, so you can even add more URL's
while the previous requests are still being downloaded.
Note:
For the sake of simplicity, URL length is limited to 1023 char's !
This is purely a demo app, all retrieved data is simply discarded by the write
callback.
*/
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <sys/time.h>
#include <time.h>
#include <unistd.h>
#include <sys/poll.h>
#include <curl/curl.h>
#include <event2/event.h>
#include <event2/event_struct.h>
#include <fcntl.h>
#include <sys/stat.h>
#include <errno.h>
#include <sys/cdefs.h>
#define MSG_OUT stdout /* Send info to stdout, change to stderr if you want */
/* Global information, common to all connections */
typedef struct _GlobalInfo
{
struct event_base *evbase;
struct event fifo_event;
struct event timer_event;
CURLM *multi;
int still_running;
FILE *input;
int stopped;
} GlobalInfo;
/* Information associated with a specific easy handle */
typedef struct _ConnInfo
{
CURL *easy;
char *url;
GlobalInfo *global;
char error[CURL_ERROR_SIZE];
} ConnInfo;
/* Information associated with a specific socket */
typedef struct _SockInfo
{
curl_socket_t sockfd;
CURL *easy;
int action;
long timeout;
struct event ev;
GlobalInfo *global;
} SockInfo;
#define mycase(code) \
case code: s = __STRING(code)
/* Die if we get a bad CURLMcode somewhere */
static void mcode_or_die(const char *where, CURLMcode code)
{
if(CURLM_OK != code) {
const char *s;
switch(code) {
mycase(CURLM_BAD_HANDLE); break;
mycase(CURLM_BAD_EASY_HANDLE); break;
mycase(CURLM_OUT_OF_MEMORY); break;
mycase(CURLM_INTERNAL_ERROR); break;
mycase(CURLM_UNKNOWN_OPTION); break;
mycase(CURLM_LAST); break;
default: s = "CURLM_unknown"; break;
mycase(CURLM_BAD_SOCKET);
fprintf(MSG_OUT, "ERROR: %s returns %s\n", where, s);
/* ignore this error */
return;
}
fprintf(MSG_OUT, "ERROR: %s returns %s\n", where, s);
exit(code);
}
}
/* Update the event timer after curl_multi library calls */
static int multi_timer_cb(CURLM *multi, long timeout_ms, GlobalInfo *g)
{
struct timeval timeout;
(void)multi;
timeout.tv_sec = timeout_ms/1000;
timeout.tv_usec = (timeout_ms%1000)*1000;
fprintf(MSG_OUT, "multi_timer_cb: Setting timeout to %ld ms\n", timeout_ms);
/*
* if timeout_ms is -1, just delete the timer
*
* For all other values of timeout_ms, this should set or *update* the timer
* to the new value
*/
if(timeout_ms == -1)
evtimer_del(&g->timer_event);
else /* includes timeout zero */
evtimer_add(&g->timer_event, &timeout);
return 0;
}
/* Check for completed transfers, and remove their easy handles */
static void check_multi_info(GlobalInfo *g)
{
char *eff_url;
CURLMsg *msg;
int msgs_left;
ConnInfo *conn;
CURL *easy;
CURLcode res;
fprintf(MSG_OUT, "REMAINING: %d\n", g->still_running);
while((msg = curl_multi_info_read(g->multi, &msgs_left))) {
if(msg->msg == CURLMSG_DONE) {
easy = msg->easy_handle;
res = msg->data.result;
curl_easy_getinfo(easy, CURLINFO_PRIVATE, &conn);
curl_easy_getinfo(easy, CURLINFO_EFFECTIVE_URL, &eff_url);
fprintf(MSG_OUT, "DONE: %s => (%d) %s\n", eff_url, res, conn->error);
curl_multi_remove_handle(g->multi, easy);
free(conn->url);
curl_easy_cleanup(easy);
free(conn);
}
}
if(g->still_running == 0 && g->stopped)
event_base_loopbreak(g->evbase);
}
/* Called by libevent when we get action on a multi socket */
static void event_cb(int fd, short kind, void *userp)
{
GlobalInfo *g = (GlobalInfo*) userp;
CURLMcode rc;
int action =
((kind & EV_READ) ? CURL_CSELECT_IN : 0) |
((kind & EV_WRITE) ? CURL_CSELECT_OUT : 0);
rc = curl_multi_socket_action(g->multi, fd, action, &g->still_running);
mcode_or_die("event_cb: curl_multi_socket_action", rc);
check_multi_info(g);
if(g->still_running <= 0) {
fprintf(MSG_OUT, "last transfer done, kill timeout\n");
if(evtimer_pending(&g->timer_event, NULL)) {
evtimer_del(&g->timer_event);
}
}
}
/* Called by libevent when our timeout expires */
static void timer_cb(int fd, short kind, void *userp)
{
GlobalInfo *g = (GlobalInfo *)userp;
CURLMcode rc;
(void)fd;
(void)kind;
rc = curl_multi_socket_action(g->multi,
CURL_SOCKET_TIMEOUT, 0, &g->still_running);
mcode_or_die("timer_cb: curl_multi_socket_action", rc);
check_multi_info(g);
}
/* Clean up the SockInfo structure */
static void remsock(SockInfo *f)
{
if(f) {
event_del(&f->ev);
free(f);
}
}
/* Assign information to a SockInfo structure */
static void setsock(SockInfo *f, curl_socket_t s, CURL *e, int act,
GlobalInfo *g)
{
int kind =
((act & CURL_POLL_IN) ? EV_READ : 0) |
((act & CURL_POLL_OUT) ? EV_WRITE : 0) | EV_PERSIST;
f->sockfd = s;
f->action = act;
f->easy = e;
event_del(&f->ev);
event_assign(&f->ev, g->evbase, f->sockfd, kind, event_cb, g);
event_add(&f->ev, NULL);
}
/* Initialize a new SockInfo structure */
static void addsock(curl_socket_t s, CURL *easy, int action, GlobalInfo *g)
{
SockInfo *fdp = calloc(sizeof(SockInfo), 1);
fdp->global = g;
setsock(fdp, s, easy, action, g);
curl_multi_assign(g->multi, s, fdp);
}
/* CURLMOPT_SOCKETFUNCTION */
static int sock_cb(CURL *e, curl_socket_t s, int what, void *cbp, void *sockp)
{
GlobalInfo *g = (GlobalInfo*) cbp;
SockInfo *fdp = (SockInfo*) sockp;
const char *whatstr[]={ "none", "IN", "OUT", "INOUT", "REMOVE" };
fprintf(MSG_OUT,
"socket callback: s=%d e=%p what=%s ", s, e, whatstr[what]);
if(what == CURL_POLL_REMOVE) {
fprintf(MSG_OUT, "\n");
remsock(fdp);
}
else {
if(!fdp) {
fprintf(MSG_OUT, "Adding data: %s\n", whatstr[what]);
addsock(s, e, what, g);
}
else {
fprintf(MSG_OUT,
"Changing action from %s to %s\n",
whatstr[fdp->action], whatstr[what]);
setsock(fdp, s, e, what, g);
}
}
return 0;
}
/* CURLOPT_WRITEFUNCTION */
static size_t write_cb(void *ptr, size_t size, size_t nmemb, void *data)
{
(void)ptr;
(void)data;
return size * nmemb;
}
/* CURLOPT_PROGRESSFUNCTION */
static int prog_cb(void *p, double dltotal, double dlnow, double ult,
double uln)
{
ConnInfo *conn = (ConnInfo *)p;
(void)ult;
(void)uln;
fprintf(MSG_OUT, "Progress: %s (%g/%g)\n", conn->url, dlnow, dltotal);
return 0;
}
/* Create a new easy handle, and add it to the global curl_multi */
static void new_conn(char *url, GlobalInfo *g)
{
ConnInfo *conn;
CURLMcode rc;
conn = calloc(1, sizeof(ConnInfo));
conn->error[0]='\0';
conn->easy = curl_easy_init();
if(!conn->easy) {
fprintf(MSG_OUT, "curl_easy_init() failed, exiting!\n");
exit(2);
}
conn->global = g;
conn->url = strdup(url);
curl_easy_setopt(conn->easy, CURLOPT_URL, conn->url);
curl_easy_setopt(conn->easy, CURLOPT_WRITEFUNCTION, write_cb);
curl_easy_setopt(conn->easy, CURLOPT_WRITEDATA, conn);
curl_easy_setopt(conn->easy, CURLOPT_VERBOSE, 1L);
curl_easy_setopt(conn->easy, CURLOPT_ERRORBUFFER, conn->error);
curl_easy_setopt(conn->easy, CURLOPT_PRIVATE, conn);
curl_easy_setopt(conn->easy, CURLOPT_NOPROGRESS, 0L);
curl_easy_setopt(conn->easy, CURLOPT_PROGRESSFUNCTION, prog_cb);
curl_easy_setopt(conn->easy, CURLOPT_PROGRESSDATA, conn);
curl_easy_setopt(conn->easy, CURLOPT_FOLLOWLOCATION, 1L);
fprintf(MSG_OUT,
"Adding easy %p to multi %p (%s)\n", conn->easy, g->multi, url);
rc = curl_multi_add_handle(g->multi, conn->easy);
mcode_or_die("new_conn: curl_multi_add_handle", rc);
/* note that the add_handle() will set a time-out to trigger very soon so
that the necessary socket_action() call will be called by this app */
}
/* This gets called whenever data is received from the fifo */
static void fifo_cb(int fd, short event, void *arg)
{
char s[1024];
long int rv = 0;
int n = 0;
GlobalInfo *g = (GlobalInfo *)arg;
(void)fd;
(void)event;
do {
s[0]='\0';
rv = fscanf(g->input, "%1023s%n", s, &n);
s[n]='\0';
if(n && s[0]) {
if(!strcmp(s, "stop")) {
g->stopped = 1;
if(g->still_running == 0)
event_base_loopbreak(g->evbase);
}
else
new_conn(s, arg); /* if we read a URL, go get it! */
}
else
break;
} while(rv != EOF);
}
/* Create a named pipe and tell libevent to monitor it */
static const char *fifo = "hiper.fifo";
static int init_fifo(GlobalInfo *g)
{
struct stat st;
curl_socket_t sockfd;
fprintf(MSG_OUT, "Creating named pipe \"%s\"\n", fifo);
if(lstat (fifo, &st) == 0) {
if((st.st_mode & S_IFMT) == S_IFREG) {
errno = EEXIST;
perror("lstat");
exit(1);
}
}
unlink(fifo);
if(mkfifo (fifo, 0600) == -1) {
perror("mkfifo");
exit(1);
}
sockfd = open(fifo, O_RDWR | O_NONBLOCK, 0);
if(sockfd == -1) {
perror("open");
exit(1);
}
g->input = fdopen(sockfd, "r");
fprintf(MSG_OUT, "Now, pipe some URL's into > %s\n", fifo);
event_assign(&g->fifo_event, g->evbase, sockfd, EV_READ|EV_PERSIST,
fifo_cb, g);
event_add(&g->fifo_event, NULL);
return (0);
}
static void clean_fifo(GlobalInfo *g)
{
event_del(&g->fifo_event);
fclose(g->input);
unlink(fifo);
}
int main(int argc, char **argv)
{
GlobalInfo g;
(void)argc;
(void)argv;
memset(&g, 0, sizeof(GlobalInfo));
g.evbase = event_base_new();
init_fifo(&g);
g.multi = curl_multi_init();
evtimer_assign(&g.timer_event, g.evbase, timer_cb, &g);
/* setup the generic multi interface options we want */
curl_multi_setopt(g.multi, CURLMOPT_SOCKETFUNCTION, sock_cb);
curl_multi_setopt(g.multi, CURLMOPT_SOCKETDATA, &g);
curl_multi_setopt(g.multi, CURLMOPT_TIMERFUNCTION, multi_timer_cb);
curl_multi_setopt(g.multi, CURLMOPT_TIMERDATA, &g);
/* we don't call any curl_multi_socket*() function yet as we have no handles
added! */
event_base_dispatch(g.evbase);
/* this, of course, won't get called since only way to stop this program is
via ctrl-C, but it is here to show how cleanup /would/ be done. */
clean_fifo(&g);
event_del(&g.timer_event);
event_base_free(g.evbase);
curl_multi_cleanup(g.multi);
return 0;
}
+86
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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 2012 - 2020, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* <DESC>
* Uses the "Streaming HTML parser" to extract the href pieces in a streaming
* manner from a downloaded HTML.
* </DESC>
*/
/*
* The HTML parser is found at https://github.com/arjunc77/htmlstreamparser
*/
#include <stdio.h>
#include <curl/curl.h>
#include <htmlstreamparser.h>
static size_t write_callback(void *buffer, size_t size, size_t nmemb,
void *hsp)
{
size_t realsize = size * nmemb, p;
for(p = 0; p < realsize; p++) {
html_parser_char_parse(hsp, ((char *)buffer)[p]);
if(html_parser_cmp_tag(hsp, "a", 1))
if(html_parser_cmp_attr(hsp, "href", 4))
if(html_parser_is_in(hsp, HTML_VALUE_ENDED)) {
html_parser_val(hsp)[html_parser_val_length(hsp)] = '\0';
printf("%s\n", html_parser_val(hsp));
}
}
return realsize;
}
int main(int argc, char *argv[])
{
char tag[1], attr[4], val[128];
CURL *curl;
HTMLSTREAMPARSER *hsp;
if(argc != 2) {
printf("Usage: %s URL\n", argv[0]);
return EXIT_FAILURE;
}
curl = curl_easy_init();
hsp = html_parser_init();
html_parser_set_tag_to_lower(hsp, 1);
html_parser_set_attr_to_lower(hsp, 1);
html_parser_set_tag_buffer(hsp, tag, sizeof(tag));
html_parser_set_attr_buffer(hsp, attr, sizeof(attr));
html_parser_set_val_buffer(hsp, val, sizeof(val)-1);
curl_easy_setopt(curl, CURLOPT_URL, argv[1]);
curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, write_callback);
curl_easy_setopt(curl, CURLOPT_WRITEDATA, hsp);
curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, 1L);
curl_easy_perform(curl);
curl_easy_cleanup(curl);
html_parser_cleanup(hsp);
return EXIT_SUCCESS;
}
+128
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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2020, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* <DESC>
* Download a document and use libtidy to parse the HTML.
* </DESC>
*/
/*
* LibTidy => https://www.html-tidy.org/
*/
#include <stdio.h>
#include <tidy.h>
#include <tidybuffio.h>
#include <curl/curl.h>
/* curl write callback, to fill tidy's input buffer... */
uint write_cb(char *in, uint size, uint nmemb, TidyBuffer *out)
{
uint r;
r = size * nmemb;
tidyBufAppend(out, in, r);
return r;
}
/* Traverse the document tree */
void dumpNode(TidyDoc doc, TidyNode tnod, int indent)
{
TidyNode child;
for(child = tidyGetChild(tnod); child; child = tidyGetNext(child) ) {
ctmbstr name = tidyNodeGetName(child);
if(name) {
/* if it has a name, then it's an HTML tag ... */
TidyAttr attr;
printf("%*.*s%s ", indent, indent, "<", name);
/* walk the attribute list */
for(attr = tidyAttrFirst(child); attr; attr = tidyAttrNext(attr) ) {
printf(tidyAttrName(attr));
tidyAttrValue(attr)?printf("=\"%s\" ",
tidyAttrValue(attr)):printf(" ");
}
printf(">\n");
}
else {
/* if it doesn't have a name, then it's probably text, cdata, etc... */
TidyBuffer buf;
tidyBufInit(&buf);
tidyNodeGetText(doc, child, &buf);
printf("%*.*s\n", indent, indent, buf.bp?(char *)buf.bp:"");
tidyBufFree(&buf);
}
dumpNode(doc, child, indent + 4); /* recursive */
}
}
int main(int argc, char **argv)
{
if(argc == 2) {
CURL *curl;
char curl_errbuf[CURL_ERROR_SIZE];
TidyDoc tdoc;
TidyBuffer docbuf = {0};
TidyBuffer tidy_errbuf = {0};
int err;
curl = curl_easy_init();
curl_easy_setopt(curl, CURLOPT_URL, argv[1]);
curl_easy_setopt(curl, CURLOPT_ERRORBUFFER, curl_errbuf);
curl_easy_setopt(curl, CURLOPT_NOPROGRESS, 0L);
curl_easy_setopt(curl, CURLOPT_VERBOSE, 1L);
curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, write_cb);
tdoc = tidyCreate();
tidyOptSetBool(tdoc, TidyForceOutput, yes); /* try harder */
tidyOptSetInt(tdoc, TidyWrapLen, 4096);
tidySetErrorBuffer(tdoc, &tidy_errbuf);
tidyBufInit(&docbuf);
curl_easy_setopt(curl, CURLOPT_WRITEDATA, &docbuf);
err = curl_easy_perform(curl);
if(!err) {
err = tidyParseBuffer(tdoc, &docbuf); /* parse the input */
if(err >= 0) {
err = tidyCleanAndRepair(tdoc); /* fix any problems */
if(err >= 0) {
err = tidyRunDiagnostics(tdoc); /* load tidy error buffer */
if(err >= 0) {
dumpNode(tdoc, tidyGetRoot(tdoc), 0); /* walk the tree */
fprintf(stderr, "%s\n", tidy_errbuf.bp); /* show errors */
}
}
}
}
else
fprintf(stderr, "%s\n", curl_errbuf);
/* clean-up */
curl_easy_cleanup(curl);
tidyBufFree(&docbuf);
tidyBufFree(&tidy_errbuf);
tidyRelease(tdoc);
return err;
}
else
printf("usage: %s <url>\n", argv[0]);
return 0;
}
+294
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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2020, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* <DESC>
* Get a web page, extract the title with libxml.
* </DESC>
Written by Lars Nilsson
GNU C++ compile command line suggestion (edit paths accordingly):
g++ -Wall -I/opt/curl/include -I/opt/libxml/include/libxml2 htmltitle.cpp \
-o htmltitle -L/opt/curl/lib -L/opt/libxml/lib -lcurl -lxml2
*/
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <string>
#include <curl/curl.h>
#include <libxml/HTMLparser.h>
//
// Case-insensitive string comparison
//
#ifdef _MSC_VER
#define COMPARE(a, b) (!_stricmp((a), (b)))
#else
#define COMPARE(a, b) (!strcasecmp((a), (b)))
#endif
//
// libxml callback context structure
//
struct Context
{
Context(): addTitle(false) { }
bool addTitle;
std::string title;
};
//
// libcurl variables for error strings and returned data
static char errorBuffer[CURL_ERROR_SIZE];
static std::string buffer;
//
// libcurl write callback function
//
static int writer(char *data, size_t size, size_t nmemb,
std::string *writerData)
{
if(writerData == NULL)
return 0;
writerData->append(data, size*nmemb);
return size * nmemb;
}
//
// libcurl connection initialization
//
static bool init(CURL *&conn, char *url)
{
CURLcode code;
conn = curl_easy_init();
if(conn == NULL) {
fprintf(stderr, "Failed to create CURL connection\n");
exit(EXIT_FAILURE);
}
code = curl_easy_setopt(conn, CURLOPT_ERRORBUFFER, errorBuffer);
if(code != CURLE_OK) {
fprintf(stderr, "Failed to set error buffer [%d]\n", code);
return false;
}
code = curl_easy_setopt(conn, CURLOPT_URL, url);
if(code != CURLE_OK) {
fprintf(stderr, "Failed to set URL [%s]\n", errorBuffer);
return false;
}
code = curl_easy_setopt(conn, CURLOPT_FOLLOWLOCATION, 1L);
if(code != CURLE_OK) {
fprintf(stderr, "Failed to set redirect option [%s]\n", errorBuffer);
return false;
}
code = curl_easy_setopt(conn, CURLOPT_WRITEFUNCTION, writer);
if(code != CURLE_OK) {
fprintf(stderr, "Failed to set writer [%s]\n", errorBuffer);
return false;
}
code = curl_easy_setopt(conn, CURLOPT_WRITEDATA, &buffer);
if(code != CURLE_OK) {
fprintf(stderr, "Failed to set write data [%s]\n", errorBuffer);
return false;
}
return true;
}
//
// libxml start element callback function
//
static void StartElement(void *voidContext,
const xmlChar *name,
const xmlChar **attributes)
{
Context *context = static_cast<Context *>(voidContext);
if(COMPARE(reinterpret_cast<char *>(name), "TITLE")) {
context->title = "";
context->addTitle = true;
}
(void) attributes;
}
//
// libxml end element callback function
//
static void EndElement(void *voidContext,
const xmlChar *name)
{
Context *context = static_cast<Context *>(voidContext);
if(COMPARE(reinterpret_cast<char *>(name), "TITLE"))
context->addTitle = false;
}
//
// Text handling helper function
//
static void handleCharacters(Context *context,
const xmlChar *chars,
int length)
{
if(context->addTitle)
context->title.append(reinterpret_cast<char *>(chars), length);
}
//
// libxml PCDATA callback function
//
static void Characters(void *voidContext,
const xmlChar *chars,
int length)
{
Context *context = static_cast<Context *>(voidContext);
handleCharacters(context, chars, length);
}
//
// libxml CDATA callback function
//
static void cdata(void *voidContext,
const xmlChar *chars,
int length)
{
Context *context = static_cast<Context *>(voidContext);
handleCharacters(context, chars, length);
}
//
// libxml SAX callback structure
//
static htmlSAXHandler saxHandler =
{
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
StartElement,
EndElement,
NULL,
Characters,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
cdata,
NULL
};
//
// Parse given (assumed to be) HTML text and return the title
//
static void parseHtml(const std::string &html,
std::string &title)
{
htmlParserCtxtPtr ctxt;
Context context;
ctxt = htmlCreatePushParserCtxt(&saxHandler, &context, "", 0, "",
XML_CHAR_ENCODING_NONE);
htmlParseChunk(ctxt, html.c_str(), html.size(), 0);
htmlParseChunk(ctxt, "", 0, 1);
htmlFreeParserCtxt(ctxt);
title = context.title;
}
int main(int argc, char *argv[])
{
CURL *conn = NULL;
CURLcode code;
std::string title;
// Ensure one argument is given
if(argc != 2) {
fprintf(stderr, "Usage: %s <url>\n", argv[0]);
exit(EXIT_FAILURE);
}
curl_global_init(CURL_GLOBAL_DEFAULT);
// Initialize CURL connection
if(!init(conn, argv[1])) {
fprintf(stderr, "Connection initializion failed\n");
exit(EXIT_FAILURE);
}
// Retrieve content for the URL
code = curl_easy_perform(conn);
curl_easy_cleanup(conn);
if(code != CURLE_OK) {
fprintf(stderr, "Failed to get '%s' [%s]\n", argv[1], errorBuffer);
exit(EXIT_FAILURE);
}
// Parse the (assumed) HTML code
parseHtml(buffer, title);
// Display the extracted title
printf("Title: %s\n", title.c_str());
return EXIT_SUCCESS;
}
+59
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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2020, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* <DESC>
* simple HTTP POST using the easy interface
* </DESC>
*/
#include <stdio.h>
#include <curl/curl.h>
int main(void)
{
CURL *curl;
CURLcode res;
/* In windows, this will init the winsock stuff */
curl_global_init(CURL_GLOBAL_ALL);
/* get a curl handle */
curl = curl_easy_init();
if(curl) {
/* First set the URL that is about to receive our POST. This URL can
just as well be a https:// URL if that is what should receive the
data. */
curl_easy_setopt(curl, CURLOPT_URL, "http://postit.example.com/moo.cgi");
/* Now specify the POST data */
curl_easy_setopt(curl, CURLOPT_POSTFIELDS, "name=daniel&project=curl");
/* Perform the request, res will get the return code */
res = curl_easy_perform(curl);
/* Check for errors */
if(res != CURLE_OK)
fprintf(stderr, "curl_easy_perform() failed: %s\n",
curl_easy_strerror(res));
/* always cleanup */
curl_easy_cleanup(curl);
}
curl_global_cleanup();
return 0;
}
+297
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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2020, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* <DESC>
* Multiplexed HTTP/2 downloads over a single connection
* </DESC>
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
/* somewhat unix-specific */
#include <sys/time.h>
#include <unistd.h>
/* curl stuff */
#include <curl/curl.h>
#include <curl/mprintf.h>
#ifndef CURLPIPE_MULTIPLEX
/* This little trick will just make sure that we don't enable pipelining for
libcurls old enough to not have this symbol. It is _not_ defined to zero in
a recent libcurl header. */
#define CURLPIPE_MULTIPLEX 0
#endif
struct transfer {
CURL *easy;
unsigned int num;
FILE *out;
};
#define NUM_HANDLES 1000
static
void dump(const char *text, int num, unsigned char *ptr, size_t size,
char nohex)
{
size_t i;
size_t c;
unsigned int width = 0x10;
if(nohex)
/* without the hex output, we can fit more on screen */
width = 0x40;
fprintf(stderr, "%d %s, %lu bytes (0x%lx)\n",
num, text, (unsigned long)size, (unsigned long)size);
for(i = 0; i<size; i += width) {
fprintf(stderr, "%4.4lx: ", (unsigned long)i);
if(!nohex) {
/* hex not disabled, show it */
for(c = 0; c < width; c++)
if(i + c < size)
fprintf(stderr, "%02x ", ptr[i + c]);
else
fputs(" ", stderr);
}
for(c = 0; (c < width) && (i + c < size); c++) {
/* check for 0D0A; if found, skip past and start a new line of output */
if(nohex && (i + c + 1 < size) && ptr[i + c] == 0x0D &&
ptr[i + c + 1] == 0x0A) {
i += (c + 2 - width);
break;
}
fprintf(stderr, "%c",
(ptr[i + c] >= 0x20) && (ptr[i + c]<0x80)?ptr[i + c]:'.');
/* check again for 0D0A, to avoid an extra \n if it's at width */
if(nohex && (i + c + 2 < size) && ptr[i + c + 1] == 0x0D &&
ptr[i + c + 2] == 0x0A) {
i += (c + 3 - width);
break;
}
}
fputc('\n', stderr); /* newline */
}
}
static
int my_trace(CURL *handle, curl_infotype type,
char *data, size_t size,
void *userp)
{
const char *text;
struct transfer *t = (struct transfer *)userp;
unsigned int num = t->num;
(void)handle; /* prevent compiler warning */
switch(type) {
case CURLINFO_TEXT:
fprintf(stderr, "== %u Info: %s", num, data);
/* FALLTHROUGH */
default: /* in case a new one is introduced to shock us */
return 0;
case CURLINFO_HEADER_OUT:
text = "=> Send header";
break;
case CURLINFO_DATA_OUT:
text = "=> Send data";
break;
case CURLINFO_SSL_DATA_OUT:
text = "=> Send SSL data";
break;
case CURLINFO_HEADER_IN:
text = "<= Recv header";
break;
case CURLINFO_DATA_IN:
text = "<= Recv data";
break;
case CURLINFO_SSL_DATA_IN:
text = "<= Recv SSL data";
break;
}
dump(text, num, (unsigned char *)data, size, 1);
return 0;
}
static void setup(struct transfer *t, int num)
{
char filename[128];
CURL *hnd;
hnd = t->easy = curl_easy_init();
curl_msnprintf(filename, 128, "dl-%d", num);
t->out = fopen(filename, "wb");
if(!t->out) {
fprintf(stderr, "error: could not open file %s for writing: %s\n",
filename, strerror(errno));
exit(1);
}
/* write to this file */
curl_easy_setopt(hnd, CURLOPT_WRITEDATA, t->out);
/* set the same URL */
curl_easy_setopt(hnd, CURLOPT_URL, "https://localhost:8443/index.html");
/* please be verbose */
curl_easy_setopt(hnd, CURLOPT_VERBOSE, 1L);
curl_easy_setopt(hnd, CURLOPT_DEBUGFUNCTION, my_trace);
curl_easy_setopt(hnd, CURLOPT_DEBUGDATA, t);
/* HTTP/2 please */
curl_easy_setopt(hnd, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_2_0);
/* we use a self-signed test server, skip verification during debugging */
curl_easy_setopt(hnd, CURLOPT_SSL_VERIFYPEER, 0L);
curl_easy_setopt(hnd, CURLOPT_SSL_VERIFYHOST, 0L);
#if (CURLPIPE_MULTIPLEX > 0)
/* wait for pipe connection to confirm */
curl_easy_setopt(hnd, CURLOPT_PIPEWAIT, 1L);
#endif
}
/*
* Download many transfers over HTTP/2, using the same connection!
*/
int main(int argc, char **argv)
{
struct transfer trans[NUM_HANDLES];
CURLM *multi_handle;
int i;
int still_running = 0; /* keep number of running handles */
int num_transfers;
if(argc > 1) {
/* if given a number, do that many transfers */
num_transfers = atoi(argv[1]);
if((num_transfers < 1) || (num_transfers > NUM_HANDLES))
num_transfers = 3; /* a suitable low default */
}
else
num_transfers = 3; /* suitable default */
/* init a multi stack */
multi_handle = curl_multi_init();
for(i = 0; i < num_transfers; i++) {
setup(&trans[i], i);
/* add the individual transfer */
curl_multi_add_handle(multi_handle, trans[i].easy);
}
curl_multi_setopt(multi_handle, CURLMOPT_PIPELINING, CURLPIPE_MULTIPLEX);
/* we start some action by calling perform right away */
curl_multi_perform(multi_handle, &still_running);
while(still_running) {
struct timeval timeout;
int rc; /* select() return code */
CURLMcode mc; /* curl_multi_fdset() return code */
fd_set fdread;
fd_set fdwrite;
fd_set fdexcep;
int maxfd = -1;
long curl_timeo = -1;
FD_ZERO(&fdread);
FD_ZERO(&fdwrite);
FD_ZERO(&fdexcep);
/* set a suitable timeout to play around with */
timeout.tv_sec = 1;
timeout.tv_usec = 0;
curl_multi_timeout(multi_handle, &curl_timeo);
if(curl_timeo >= 0) {
timeout.tv_sec = curl_timeo / 1000;
if(timeout.tv_sec > 1)
timeout.tv_sec = 1;
else
timeout.tv_usec = (curl_timeo % 1000) * 1000;
}
/* get file descriptors from the transfers */
mc = curl_multi_fdset(multi_handle, &fdread, &fdwrite, &fdexcep, &maxfd);
if(mc != CURLM_OK) {
fprintf(stderr, "curl_multi_fdset() failed, code %d.\n", mc);
break;
}
/* On success the value of maxfd is guaranteed to be >= -1. We call
select(maxfd + 1, ...); specially in case of (maxfd == -1) there are
no fds ready yet so we call select(0, ...) --or Sleep() on Windows--
to sleep 100ms, which is the minimum suggested value in the
curl_multi_fdset() doc. */
if(maxfd == -1) {
#ifdef _WIN32
Sleep(100);
rc = 0;
#else
/* Portable sleep for platforms other than Windows. */
struct timeval wait = { 0, 100 * 1000 }; /* 100ms */
rc = select(0, NULL, NULL, NULL, &wait);
#endif
}
else {
/* Note that on some platforms 'timeout' may be modified by select().
If you need access to the original value save a copy beforehand. */
rc = select(maxfd + 1, &fdread, &fdwrite, &fdexcep, &timeout);
}
switch(rc) {
case -1:
/* select error */
break;
case 0:
default:
/* timeout or readable/writable sockets */
curl_multi_perform(multi_handle, &still_running);
break;
}
}
for(i = 0; i < num_transfers; i++) {
curl_multi_remove_handle(multi_handle, trans[i].easy);
curl_easy_cleanup(trans[i].easy);
}
curl_multi_cleanup(multi_handle);
return 0;
}
+188
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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2020, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* <DESC>
* HTTP/2 server push. Receive all data in memory.
* </DESC>
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
/* somewhat unix-specific */
#include <sys/time.h>
#include <unistd.h>
/* curl stuff */
#include <curl/curl.h>
struct Memory {
char *memory;
size_t size;
};
static size_t
write_cb(void *contents, size_t size, size_t nmemb, void *userp)
{
size_t realsize = size * nmemb;
struct Memory *mem = (struct Memory *)userp;
char *ptr = realloc(mem->memory, mem->size + realsize + 1);
if(!ptr) {
/* out of memory! */
printf("not enough memory (realloc returned NULL)\n");
return 0;
}
mem->memory = ptr;
memcpy(&(mem->memory[mem->size]), contents, realsize);
mem->size += realsize;
mem->memory[mem->size] = 0;
return realsize;
}
#define MAX_FILES 10
static struct Memory files[MAX_FILES];
static int pushindex = 1;
static void init_memory(struct Memory *chunk)
{
chunk->memory = malloc(1); /* grown as needed with realloc */
chunk->size = 0; /* no data at this point */
}
static void setup(CURL *hnd)
{
/* set the same URL */
curl_easy_setopt(hnd, CURLOPT_URL, "https://localhost:8443/index.html");
/* HTTP/2 please */
curl_easy_setopt(hnd, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_2_0);
/* we use a self-signed test server, skip verification during debugging */
curl_easy_setopt(hnd, CURLOPT_SSL_VERIFYPEER, 0L);
curl_easy_setopt(hnd, CURLOPT_SSL_VERIFYHOST, 0L);
/* write data to a struct */
curl_easy_setopt(hnd, CURLOPT_WRITEFUNCTION, write_cb);
init_memory(&files[0]);
curl_easy_setopt(hnd, CURLOPT_WRITEDATA, &files[0]);
/* wait for pipe connection to confirm */
curl_easy_setopt(hnd, CURLOPT_PIPEWAIT, 1L);
}
/* called when there's an incoming push */
static int server_push_callback(CURL *parent,
CURL *easy,
size_t num_headers,
struct curl_pushheaders *headers,
void *userp)
{
char *headp;
int *transfers = (int *)userp;
(void)parent; /* we have no use for this */
(void)num_headers; /* unused */
if(pushindex == MAX_FILES)
/* can't fit anymore */
return CURL_PUSH_DENY;
/* write to this buffer */
init_memory(&files[pushindex]);
curl_easy_setopt(easy, CURLOPT_WRITEDATA, &files[pushindex]);
pushindex++;
headp = curl_pushheader_byname(headers, ":path");
if(headp)
fprintf(stderr, "* Pushed :path '%s'\n", headp /* skip :path + colon */);
(*transfers)++; /* one more */
return CURL_PUSH_OK;
}
/*
* Download a file over HTTP/2, take care of server push.
*/
int main(void)
{
CURL *easy;
CURLM *multi;
int still_running; /* keep number of running handles */
int transfers = 1; /* we start with one */
int i;
struct CURLMsg *m;
/* init a multi stack */
multi = curl_multi_init();
easy = curl_easy_init();
/* set options */
setup(easy);
/* add the easy transfer */
curl_multi_add_handle(multi, easy);
curl_multi_setopt(multi, CURLMOPT_PIPELINING, CURLPIPE_MULTIPLEX);
curl_multi_setopt(multi, CURLMOPT_PUSHFUNCTION, server_push_callback);
curl_multi_setopt(multi, CURLMOPT_PUSHDATA, &transfers);
while(transfers) {
int rc;
CURLMcode mcode = curl_multi_perform(multi, &still_running);
if(mcode)
break;
mcode = curl_multi_wait(multi, NULL, 0, 1000, &rc);
if(mcode)
break;
/*
* When doing server push, libcurl itself created and added one or more
* easy handles but *we* need to clean them up when they are done.
*/
do {
int msgq = 0;
m = curl_multi_info_read(multi, &msgq);
if(m && (m->msg == CURLMSG_DONE)) {
CURL *e = m->easy_handle;
transfers--;
curl_multi_remove_handle(multi, e);
curl_easy_cleanup(e);
}
} while(m);
}
curl_multi_cleanup(multi);
/* 'pushindex' is now the number of received transfers */
for(i = 0; i < pushindex; i++) {
/* do something fun with the data, and then free it when done */
free(files[i].memory);
}
return 0;
}
+334
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@@ -0,0 +1,334 @@
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2020, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* <DESC>
* HTTP/2 server push
* </DESC>
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
/* somewhat unix-specific */
#include <sys/time.h>
#include <unistd.h>
/* curl stuff */
#include <curl/curl.h>
#ifndef CURLPIPE_MULTIPLEX
#error "too old libcurl, can't do HTTP/2 server push!"
#endif
static
void dump(const char *text, unsigned char *ptr, size_t size,
char nohex)
{
size_t i;
size_t c;
unsigned int width = 0x10;
if(nohex)
/* without the hex output, we can fit more on screen */
width = 0x40;
fprintf(stderr, "%s, %lu bytes (0x%lx)\n",
text, (unsigned long)size, (unsigned long)size);
for(i = 0; i<size; i += width) {
fprintf(stderr, "%4.4lx: ", (unsigned long)i);
if(!nohex) {
/* hex not disabled, show it */
for(c = 0; c < width; c++)
if(i + c < size)
fprintf(stderr, "%02x ", ptr[i + c]);
else
fputs(" ", stderr);
}
for(c = 0; (c < width) && (i + c < size); c++) {
/* check for 0D0A; if found, skip past and start a new line of output */
if(nohex && (i + c + 1 < size) && ptr[i + c] == 0x0D &&
ptr[i + c + 1] == 0x0A) {
i += (c + 2 - width);
break;
}
fprintf(stderr, "%c",
(ptr[i + c] >= 0x20) && (ptr[i + c]<0x80)?ptr[i + c]:'.');
/* check again for 0D0A, to avoid an extra \n if it's at width */
if(nohex && (i + c + 2 < size) && ptr[i + c + 1] == 0x0D &&
ptr[i + c + 2] == 0x0A) {
i += (c + 3 - width);
break;
}
}
fputc('\n', stderr); /* newline */
}
}
static
int my_trace(CURL *handle, curl_infotype type,
char *data, size_t size,
void *userp)
{
const char *text;
(void)handle; /* prevent compiler warning */
(void)userp;
switch(type) {
case CURLINFO_TEXT:
fprintf(stderr, "== Info: %s", data);
/* FALLTHROUGH */
default: /* in case a new one is introduced to shock us */
return 0;
case CURLINFO_HEADER_OUT:
text = "=> Send header";
break;
case CURLINFO_DATA_OUT:
text = "=> Send data";
break;
case CURLINFO_SSL_DATA_OUT:
text = "=> Send SSL data";
break;
case CURLINFO_HEADER_IN:
text = "<= Recv header";
break;
case CURLINFO_DATA_IN:
text = "<= Recv data";
break;
case CURLINFO_SSL_DATA_IN:
text = "<= Recv SSL data";
break;
}
dump(text, (unsigned char *)data, size, 1);
return 0;
}
#define OUTPUTFILE "dl"
static int setup(CURL *hnd)
{
FILE *out = fopen(OUTPUTFILE, "wb");
if(!out)
/* failed */
return 1;
/* write to this file */
curl_easy_setopt(hnd, CURLOPT_WRITEDATA, out);
/* set the same URL */
curl_easy_setopt(hnd, CURLOPT_URL, "https://localhost:8443/index.html");
/* please be verbose */
curl_easy_setopt(hnd, CURLOPT_VERBOSE, 1L);
curl_easy_setopt(hnd, CURLOPT_DEBUGFUNCTION, my_trace);
/* HTTP/2 please */
curl_easy_setopt(hnd, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_2_0);
/* we use a self-signed test server, skip verification during debugging */
curl_easy_setopt(hnd, CURLOPT_SSL_VERIFYPEER, 0L);
curl_easy_setopt(hnd, CURLOPT_SSL_VERIFYHOST, 0L);
#if (CURLPIPE_MULTIPLEX > 0)
/* wait for pipe connection to confirm */
curl_easy_setopt(hnd, CURLOPT_PIPEWAIT, 1L);
#endif
return 0; /* all is good */
}
/* called when there's an incoming push */
static int server_push_callback(CURL *parent,
CURL *easy,
size_t num_headers,
struct curl_pushheaders *headers,
void *userp)
{
char *headp;
size_t i;
int *transfers = (int *)userp;
char filename[128];
FILE *out;
static unsigned int count = 0;
(void)parent; /* we have no use for this */
snprintf(filename, 128, "push%u", count++);
/* here's a new stream, save it in a new file for each new push */
out = fopen(filename, "wb");
if(!out) {
/* if we can't save it, deny it */
fprintf(stderr, "Failed to create output file for push\n");
return CURL_PUSH_DENY;
}
/* write to this file */
curl_easy_setopt(easy, CURLOPT_WRITEDATA, out);
fprintf(stderr, "**** push callback approves stream %u, got %lu headers!\n",
count, (unsigned long)num_headers);
for(i = 0; i<num_headers; i++) {
headp = curl_pushheader_bynum(headers, i);
fprintf(stderr, "**** header %lu: %s\n", (unsigned long)i, headp);
}
headp = curl_pushheader_byname(headers, ":path");
if(headp) {
fprintf(stderr, "**** The PATH is %s\n", headp /* skip :path + colon */);
}
(*transfers)++; /* one more */
return CURL_PUSH_OK;
}
/*
* Download a file over HTTP/2, take care of server push.
*/
int main(void)
{
CURL *easy;
CURLM *multi_handle;
int still_running; /* keep number of running handles */
int transfers = 1; /* we start with one */
struct CURLMsg *m;
/* init a multi stack */
multi_handle = curl_multi_init();
easy = curl_easy_init();
/* set options */
if(setup(easy)) {
fprintf(stderr, "failed\n");
return 1;
}
/* add the easy transfer */
curl_multi_add_handle(multi_handle, easy);
curl_multi_setopt(multi_handle, CURLMOPT_PIPELINING, CURLPIPE_MULTIPLEX);
curl_multi_setopt(multi_handle, CURLMOPT_PUSHFUNCTION, server_push_callback);
curl_multi_setopt(multi_handle, CURLMOPT_PUSHDATA, &transfers);
/* we start some action by calling perform right away */
curl_multi_perform(multi_handle, &still_running);
do {
struct timeval timeout;
int rc; /* select() return code */
CURLMcode mc; /* curl_multi_fdset() return code */
fd_set fdread;
fd_set fdwrite;
fd_set fdexcep;
int maxfd = -1;
long curl_timeo = -1;
FD_ZERO(&fdread);
FD_ZERO(&fdwrite);
FD_ZERO(&fdexcep);
/* set a suitable timeout to play around with */
timeout.tv_sec = 1;
timeout.tv_usec = 0;
curl_multi_timeout(multi_handle, &curl_timeo);
if(curl_timeo >= 0) {
timeout.tv_sec = curl_timeo / 1000;
if(timeout.tv_sec > 1)
timeout.tv_sec = 1;
else
timeout.tv_usec = (curl_timeo % 1000) * 1000;
}
/* get file descriptors from the transfers */
mc = curl_multi_fdset(multi_handle, &fdread, &fdwrite, &fdexcep, &maxfd);
if(mc != CURLM_OK) {
fprintf(stderr, "curl_multi_fdset() failed, code %d.\n", mc);
break;
}
/* On success the value of maxfd is guaranteed to be >= -1. We call
select(maxfd + 1, ...); specially in case of (maxfd == -1) there are
no fds ready yet so we call select(0, ...) --or Sleep() on Windows--
to sleep 100ms, which is the minimum suggested value in the
curl_multi_fdset() doc. */
if(maxfd == -1) {
#ifdef _WIN32
Sleep(100);
rc = 0;
#else
/* Portable sleep for platforms other than Windows. */
struct timeval wait = { 0, 100 * 1000 }; /* 100ms */
rc = select(0, NULL, NULL, NULL, &wait);
#endif
}
else {
/* Note that on some platforms 'timeout' may be modified by select().
If you need access to the original value save a copy beforehand. */
rc = select(maxfd + 1, &fdread, &fdwrite, &fdexcep, &timeout);
}
switch(rc) {
case -1:
/* select error */
break;
case 0:
default:
/* timeout or readable/writable sockets */
curl_multi_perform(multi_handle, &still_running);
break;
}
/*
* A little caution when doing server push is that libcurl itself has
* created and added one or more easy handles but we need to clean them up
* when we are done.
*/
do {
int msgq = 0;
m = curl_multi_info_read(multi_handle, &msgq);
if(m && (m->msg == CURLMSG_DONE)) {
CURL *e = m->easy_handle;
transfers--;
curl_multi_remove_handle(multi_handle, e);
curl_easy_cleanup(e);
}
} while(m);
} while(transfers); /* as long as we have transfers going */
curl_multi_cleanup(multi_handle);
return 0;
}
+364
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@@ -0,0 +1,364 @@
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2020, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* <DESC>
* Multiplexed HTTP/2 uploads over a single connection
* </DESC>
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <fcntl.h>
#include <sys/stat.h>
#include <errno.h>
/* somewhat unix-specific */
#include <sys/time.h>
#include <unistd.h>
/* curl stuff */
#include <curl/curl.h>
#include <curl/mprintf.h>
#ifndef CURLPIPE_MULTIPLEX
/* This little trick will just make sure that we don't enable pipelining for
libcurls old enough to not have this symbol. It is _not_ defined to zero in
a recent libcurl header. */
#define CURLPIPE_MULTIPLEX 0
#endif
#define NUM_HANDLES 1000
struct input {
FILE *in;
size_t bytes_read; /* count up */
CURL *hnd;
int num;
};
static
void dump(const char *text, int num, unsigned char *ptr, size_t size,
char nohex)
{
size_t i;
size_t c;
unsigned int width = 0x10;
if(nohex)
/* without the hex output, we can fit more on screen */
width = 0x40;
fprintf(stderr, "%d %s, %lu bytes (0x%lx)\n",
num, text, (unsigned long)size, (unsigned long)size);
for(i = 0; i<size; i += width) {
fprintf(stderr, "%4.4lx: ", (unsigned long)i);
if(!nohex) {
/* hex not disabled, show it */
for(c = 0; c < width; c++)
if(i + c < size)
fprintf(stderr, "%02x ", ptr[i + c]);
else
fputs(" ", stderr);
}
for(c = 0; (c < width) && (i + c < size); c++) {
/* check for 0D0A; if found, skip past and start a new line of output */
if(nohex && (i + c + 1 < size) && ptr[i + c] == 0x0D &&
ptr[i + c + 1] == 0x0A) {
i += (c + 2 - width);
break;
}
fprintf(stderr, "%c",
(ptr[i + c] >= 0x20) && (ptr[i + c]<0x80)?ptr[i + c]:'.');
/* check again for 0D0A, to avoid an extra \n if it's at width */
if(nohex && (i + c + 2 < size) && ptr[i + c + 1] == 0x0D &&
ptr[i + c + 2] == 0x0A) {
i += (c + 3 - width);
break;
}
}
fputc('\n', stderr); /* newline */
}
}
static
int my_trace(CURL *handle, curl_infotype type,
char *data, size_t size,
void *userp)
{
char timebuf[60];
const char *text;
struct input *i = (struct input *)userp;
int num = i->num;
static time_t epoch_offset;
static int known_offset;
struct timeval tv;
time_t secs;
struct tm *now;
(void)handle; /* prevent compiler warning */
gettimeofday(&tv, NULL);
if(!known_offset) {
epoch_offset = time(NULL) - tv.tv_sec;
known_offset = 1;
}
secs = epoch_offset + tv.tv_sec;
now = localtime(&secs); /* not thread safe but we don't care */
curl_msnprintf(timebuf, sizeof(timebuf), "%02d:%02d:%02d.%06ld",
now->tm_hour, now->tm_min, now->tm_sec, (long)tv.tv_usec);
switch(type) {
case CURLINFO_TEXT:
fprintf(stderr, "%s [%d] Info: %s", timebuf, num, data);
/* FALLTHROUGH */
default: /* in case a new one is introduced to shock us */
return 0;
case CURLINFO_HEADER_OUT:
text = "=> Send header";
break;
case CURLINFO_DATA_OUT:
text = "=> Send data";
break;
case CURLINFO_SSL_DATA_OUT:
text = "=> Send SSL data";
break;
case CURLINFO_HEADER_IN:
text = "<= Recv header";
break;
case CURLINFO_DATA_IN:
text = "<= Recv data";
break;
case CURLINFO_SSL_DATA_IN:
text = "<= Recv SSL data";
break;
}
dump(text, num, (unsigned char *)data, size, 1);
return 0;
}
static size_t read_callback(char *ptr, size_t size, size_t nmemb, void *userp)
{
struct input *i = userp;
size_t retcode = fread(ptr, size, nmemb, i->in);
i->bytes_read += retcode;
return retcode;
}
static void setup(struct input *i, int num, const char *upload)
{
FILE *out;
char url[256];
char filename[128];
struct stat file_info;
curl_off_t uploadsize;
CURL *hnd;
hnd = i->hnd = curl_easy_init();
i->num = num;
curl_msnprintf(filename, 128, "dl-%d", num);
out = fopen(filename, "wb");
if(!out) {
fprintf(stderr, "error: could not open file %s for writing: %s\n", upload,
strerror(errno));
exit(1);
}
curl_msnprintf(url, 256, "https://localhost:8443/upload-%d", num);
/* get the file size of the local file */
if(stat(upload, &file_info)) {
fprintf(stderr, "error: could not stat file %s: %s\n", upload,
strerror(errno));
exit(1);
}
uploadsize = file_info.st_size;
i->in = fopen(upload, "rb");
if(!i->in) {
fprintf(stderr, "error: could not open file %s for reading: %s\n", upload,
strerror(errno));
exit(1);
}
/* write to this file */
curl_easy_setopt(hnd, CURLOPT_WRITEDATA, out);
/* we want to use our own read function */
curl_easy_setopt(hnd, CURLOPT_READFUNCTION, read_callback);
/* read from this file */
curl_easy_setopt(hnd, CURLOPT_READDATA, i);
/* provide the size of the upload */
curl_easy_setopt(hnd, CURLOPT_INFILESIZE_LARGE, uploadsize);
/* send in the URL to store the upload as */
curl_easy_setopt(hnd, CURLOPT_URL, url);
/* upload please */
curl_easy_setopt(hnd, CURLOPT_UPLOAD, 1L);
/* please be verbose */
curl_easy_setopt(hnd, CURLOPT_VERBOSE, 1L);
curl_easy_setopt(hnd, CURLOPT_DEBUGFUNCTION, my_trace);
curl_easy_setopt(hnd, CURLOPT_DEBUGDATA, i);
/* HTTP/2 please */
curl_easy_setopt(hnd, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_2_0);
/* we use a self-signed test server, skip verification during debugging */
curl_easy_setopt(hnd, CURLOPT_SSL_VERIFYPEER, 0L);
curl_easy_setopt(hnd, CURLOPT_SSL_VERIFYHOST, 0L);
#if (CURLPIPE_MULTIPLEX > 0)
/* wait for pipe connection to confirm */
curl_easy_setopt(hnd, CURLOPT_PIPEWAIT, 1L);
#endif
}
/*
* Upload all files over HTTP/2, using the same physical connection!
*/
int main(int argc, char **argv)
{
struct input trans[NUM_HANDLES];
CURLM *multi_handle;
int i;
int still_running = 0; /* keep number of running handles */
const char *filename = "index.html";
int num_transfers;
if(argc > 1) {
/* if given a number, do that many transfers */
num_transfers = atoi(argv[1]);
if(!num_transfers || (num_transfers > NUM_HANDLES))
num_transfers = 3; /* a suitable low default */
if(argc > 2)
/* if given a file name, upload this! */
filename = argv[2];
}
else
num_transfers = 3;
/* init a multi stack */
multi_handle = curl_multi_init();
for(i = 0; i<num_transfers; i++) {
setup(&trans[i], i, filename);
/* add the individual transfer */
curl_multi_add_handle(multi_handle, trans[i].hnd);
}
curl_multi_setopt(multi_handle, CURLMOPT_PIPELINING, CURLPIPE_MULTIPLEX);
/* We do HTTP/2 so let's stick to one connection per host */
curl_multi_setopt(multi_handle, CURLMOPT_MAX_HOST_CONNECTIONS, 1L);
/* we start some action by calling perform right away */
curl_multi_perform(multi_handle, &still_running);
while(still_running) {
struct timeval timeout;
int rc; /* select() return code */
CURLMcode mc; /* curl_multi_fdset() return code */
fd_set fdread;
fd_set fdwrite;
fd_set fdexcep;
int maxfd = -1;
long curl_timeo = -1;
FD_ZERO(&fdread);
FD_ZERO(&fdwrite);
FD_ZERO(&fdexcep);
/* set a suitable timeout to play around with */
timeout.tv_sec = 1;
timeout.tv_usec = 0;
curl_multi_timeout(multi_handle, &curl_timeo);
if(curl_timeo >= 0) {
timeout.tv_sec = curl_timeo / 1000;
if(timeout.tv_sec > 1)
timeout.tv_sec = 1;
else
timeout.tv_usec = (curl_timeo % 1000) * 1000;
}
/* get file descriptors from the transfers */
mc = curl_multi_fdset(multi_handle, &fdread, &fdwrite, &fdexcep, &maxfd);
if(mc != CURLM_OK) {
fprintf(stderr, "curl_multi_fdset() failed, code %d.\n", mc);
break;
}
/* On success the value of maxfd is guaranteed to be >= -1. We call
select(maxfd + 1, ...); specially in case of (maxfd == -1) there are
no fds ready yet so we call select(0, ...) --or Sleep() on Windows--
to sleep 100ms, which is the minimum suggested value in the
curl_multi_fdset() doc. */
if(maxfd == -1) {
#ifdef _WIN32
Sleep(100);
rc = 0;
#else
/* Portable sleep for platforms other than Windows. */
struct timeval wait = { 0, 100 * 1000 }; /* 100ms */
rc = select(0, NULL, NULL, NULL, &wait);
#endif
}
else {
/* Note that on some platforms 'timeout' may be modified by select().
If you need access to the original value save a copy beforehand. */
rc = select(maxfd + 1, &fdread, &fdwrite, &fdexcep, &timeout);
}
switch(rc) {
case -1:
/* select error */
break;
case 0:
default:
/* timeout or readable/writable sockets */
curl_multi_perform(multi_handle, &still_running);
break;
}
}
curl_multi_cleanup(multi_handle);
for(i = 0; i<num_transfers; i++) {
curl_multi_remove_handle(multi_handle, trans[i].hnd);
curl_easy_cleanup(trans[i].hnd);
}
return 0;
}
+47
View File
@@ -0,0 +1,47 @@
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2020, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* <DESC>
* Checks if HTTP/3 support is present in libcurl.
* </DESC>
*/
#include <stdio.h>
#include <curl/curl.h>
int main(void)
{
curl_version_info_data *ver;
curl_global_init(CURL_GLOBAL_ALL);
ver = curl_version_info(CURLVERSION_NOW);
if(ver->features & CURL_VERSION_HTTP2)
printf("HTTP/2 support is present\n");
if(ver->features & CURL_VERSION_HTTP3)
printf("HTTP/3 support is present\n");
if(ver->features & CURL_VERSION_ALTSVC)
printf("Alt-svc support is present\n");
curl_global_cleanup();
return 0;
}
+54
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@@ -0,0 +1,54 @@
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2020, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* <DESC>
* Very simple HTTP/3 GET
* </DESC>
*/
#include <stdio.h>
#include <curl/curl.h>
int main(void)
{
CURL *curl;
CURLcode res;
curl = curl_easy_init();
if(curl) {
curl_easy_setopt(curl, CURLOPT_URL, "https://example.com");
/* Forcing HTTP/3 will make the connection fail if the server isn't
accessible over QUIC + HTTP/3 on the given host and port.
Consider using CURLOPT_ALTSVC instead! */
curl_easy_setopt(curl, CURLOPT_HTTP_VERSION, (long)CURL_HTTP_VERSION_3);
/* Perform the request, res will get the return code */
res = curl_easy_perform(curl);
/* Check for errors */
if(res != CURLE_OK)
fprintf(stderr, "curl_easy_perform() failed: %s\n",
curl_easy_strerror(res));
/* always cleanup */
curl_easy_cleanup(curl);
}
return 0;
}
+70
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@@ -0,0 +1,70 @@
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2020, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* <DESC>
* HTTP request with custom modified, removed and added headers
* </DESC>
*/
#include <stdio.h>
#include <curl/curl.h>
int main(void)
{
CURL *curl;
CURLcode res;
curl = curl_easy_init();
if(curl) {
struct curl_slist *chunk = NULL;
/* Remove a header curl would otherwise add by itself */
chunk = curl_slist_append(chunk, "Accept:");
/* Add a custom header */
chunk = curl_slist_append(chunk, "Another: yes");
/* Modify a header curl otherwise adds differently */
chunk = curl_slist_append(chunk, "Host: example.com");
/* Add a header with "blank" contents to the right of the colon. Note that
we're then using a semicolon in the string we pass to curl! */
chunk = curl_slist_append(chunk, "X-silly-header;");
/* set our custom set of headers */
curl_easy_setopt(curl, CURLOPT_HTTPHEADER, chunk);
curl_easy_setopt(curl, CURLOPT_URL, "localhost");
curl_easy_setopt(curl, CURLOPT_VERBOSE, 1L);
res = curl_easy_perform(curl);
/* Check for errors */
if(res != CURLE_OK)
fprintf(stderr, "curl_easy_perform() failed: %s\n",
curl_easy_strerror(res));
/* always cleanup */
curl_easy_cleanup(curl);
/* free the custom headers */
curl_slist_free_all(chunk);
}
return 0;
}
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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2020, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* <DESC>
* HTTP PUT using CURLOPT_POSTFIELDS
* </DESC>
*/
#include <stdio.h>
#include <fcntl.h>
#include <sys/stat.h>
#include <curl/curl.h>
static const char olivertwist[]=
"Among other public buildings in a certain town, which for many reasons "
"it will be prudent to refrain from mentioning, and to which I will assign "
"no fictitious name, there is one anciently common to most towns, great or "
"small: to wit, a workhouse; and in this workhouse was born; on a day and "
"date which I need not trouble myself to repeat, inasmuch as it can be of "
"no possible consequence to the reader, in this stage of the business at "
"all events; the item of mortality whose name is prefixed to the head of "
"this chapter.";
/*
* This example shows a HTTP PUT operation that sends a fixed buffer with
* CURLOPT_POSTFIELDS to the URL given as an argument.
*/
int main(int argc, char **argv)
{
CURL *curl;
CURLcode res;
char *url;
if(argc < 2)
return 1;
url = argv[1];
/* In windows, this will init the winsock stuff */
curl_global_init(CURL_GLOBAL_ALL);
/* get a curl handle */
curl = curl_easy_init();
if(curl) {
struct curl_slist *headers = NULL;
/* default type with postfields is application/x-www-form-urlencoded,
change it if you want */
headers = curl_slist_append(headers, "Content-Type: literature/classic");
curl_easy_setopt(curl, CURLOPT_HTTPHEADER, headers);
/* pass on content in request body. When CURLOPT_POSTFIELDSIZE isn't used,
curl does strlen to get the size. */
curl_easy_setopt(curl, CURLOPT_POSTFIELDS, olivertwist);
/* override the POST implied by CURLOPT_POSTFIELDS
*
* Warning: CURLOPT_CUSTOMREQUEST is problematic, especially if you want
* to follow redirects. Be aware.
*/
curl_easy_setopt(curl, CURLOPT_CUSTOMREQUEST, "PUT");
/* specify target URL, and note that this URL should include a file
name, not only a directory */
curl_easy_setopt(curl, CURLOPT_URL, url);
/* Now run off and do what you've been told! */
res = curl_easy_perform(curl);
/* Check for errors */
if(res != CURLE_OK)
fprintf(stderr, "curl_easy_perform() failed: %s\n",
curl_easy_strerror(res));
/* always cleanup */
curl_easy_cleanup(curl);
/* free headers */
curl_slist_free_all(headers);
}
curl_global_cleanup();
return 0;
}
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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2020, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* <DESC>
* HTTP PUT with easy interface and read callback
* </DESC>
*/
#include <stdio.h>
#include <fcntl.h>
#include <sys/stat.h>
#include <curl/curl.h>
/*
* This example shows a HTTP PUT operation. PUTs a file given as a command
* line argument to the URL also given on the command line.
*
* This example also uses its own read callback.
*
* Here's an article on how to setup a PUT handler for Apache:
* http://www.apacheweek.com/features/put
*/
static size_t read_callback(char *ptr, size_t size, size_t nmemb, void *stream)
{
size_t retcode;
curl_off_t nread;
/* in real-world cases, this would probably get this data differently
as this fread() stuff is exactly what the library already would do
by default internally */
retcode = fread(ptr, size, nmemb, stream);
nread = (curl_off_t)retcode;
fprintf(stderr, "*** We read %" CURL_FORMAT_CURL_OFF_T
" bytes from file\n", nread);
return retcode;
}
int main(int argc, char **argv)
{
CURL *curl;
CURLcode res;
FILE * hd_src;
struct stat file_info;
char *file;
char *url;
if(argc < 3)
return 1;
file = argv[1];
url = argv[2];
/* get the file size of the local file */
stat(file, &file_info);
/* get a FILE * of the same file, could also be made with
fdopen() from the previous descriptor, but hey this is just
an example! */
hd_src = fopen(file, "rb");
/* In windows, this will init the winsock stuff */
curl_global_init(CURL_GLOBAL_ALL);
/* get a curl handle */
curl = curl_easy_init();
if(curl) {
/* we want to use our own read function */
curl_easy_setopt(curl, CURLOPT_READFUNCTION, read_callback);
/* enable uploading (implies PUT over HTTP) */
curl_easy_setopt(curl, CURLOPT_UPLOAD, 1L);
/* specify target URL, and note that this URL should include a file
name, not only a directory */
curl_easy_setopt(curl, CURLOPT_URL, url);
/* now specify which file to upload */
curl_easy_setopt(curl, CURLOPT_READDATA, hd_src);
/* provide the size of the upload, we specicially typecast the value
to curl_off_t since we must be sure to use the correct data size */
curl_easy_setopt(curl, CURLOPT_INFILESIZE_LARGE,
(curl_off_t)file_info.st_size);
/* Now run off and do what you've been told! */
res = curl_easy_perform(curl);
/* Check for errors */
if(res != CURLE_OK)
fprintf(stderr, "curl_easy_perform() failed: %s\n",
curl_easy_strerror(res));
/* always cleanup */
curl_easy_cleanup(curl);
}
fclose(hd_src); /* close the local file */
curl_global_cleanup();
return 0;
}
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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2020, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* <DESC>
* Simple HTTPS GET
* </DESC>
*/
#include <stdio.h>
#include <curl/curl.h>
int main(void)
{
CURL *curl;
CURLcode res;
curl_global_init(CURL_GLOBAL_DEFAULT);
curl = curl_easy_init();
if(curl) {
curl_easy_setopt(curl, CURLOPT_URL, "https://example.com/");
#ifdef SKIP_PEER_VERIFICATION
/*
* If you want to connect to a site who isn't using a certificate that is
* signed by one of the certs in the CA bundle you have, you can skip the
* verification of the server's certificate. This makes the connection
* A LOT LESS SECURE.
*
* If you have a CA cert for the server stored someplace else than in the
* default bundle, then the CURLOPT_CAPATH option might come handy for
* you.
*/
curl_easy_setopt(curl, CURLOPT_SSL_VERIFYPEER, 0L);
#endif
#ifdef SKIP_HOSTNAME_VERIFICATION
/*
* If the site you're connecting to uses a different host name that what
* they have mentioned in their server certificate's commonName (or
* subjectAltName) fields, libcurl will refuse to connect. You can skip
* this check, but this will make the connection less secure.
*/
curl_easy_setopt(curl, CURLOPT_SSL_VERIFYHOST, 0L);
#endif
/* Perform the request, res will get the return code */
res = curl_easy_perform(curl);
/* Check for errors */
if(res != CURLE_OK)
fprintf(stderr, "curl_easy_perform() failed: %s\n",
curl_easy_strerror(res));
/* always cleanup */
curl_easy_cleanup(curl);
}
curl_global_cleanup();
return 0;
}
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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2020, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* <DESC>
* IMAP example showing how to send e-mails
* </DESC>
*/
#include <stdio.h>
#include <string.h>
#include <curl/curl.h>
/* This is a simple example showing how to send mail using libcurl's IMAP
* capabilities.
*
* Note that this example requires libcurl 7.30.0 or above.
*/
#define FROM "<[email protected]>"
#define TO "<[email protected]>"
#define CC "<[email protected]>"
static const char *payload_text[] = {
"Date: Mon, 29 Nov 2010 21:54:29 +1100\r\n",
"To: " TO "\r\n",
"From: " FROM "(Example User)\r\n",
"Cc: " CC "(Another example User)\r\n",
"Message-ID: "
"<[email protected]>\r\n",
"Subject: IMAP example message\r\n",
"\r\n", /* empty line to divide headers from body, see RFC5322 */
"The body of the message starts here.\r\n",
"\r\n",
"It could be a lot of lines, could be MIME encoded, whatever.\r\n",
"Check RFC5322.\r\n",
NULL
};
struct upload_status {
int lines_read;
};
static size_t payload_source(char *ptr, size_t size, size_t nmemb, void *userp)
{
struct upload_status *upload_ctx = (struct upload_status *)userp;
const char *data;
if((size == 0) || (nmemb == 0) || ((size*nmemb) < 1)) {
return 0;
}
data = payload_text[upload_ctx->lines_read];
if(data) {
size_t len = strlen(data);
memcpy(ptr, data, len);
upload_ctx->lines_read++;
return len;
}
return 0;
}
int main(void)
{
CURL *curl;
CURLcode res = CURLE_OK;
curl = curl_easy_init();
if(curl) {
const char **p;
long infilesize;
struct upload_status upload_ctx;
upload_ctx.lines_read = 0;
/* Set username and password */
curl_easy_setopt(curl, CURLOPT_USERNAME, "user");
curl_easy_setopt(curl, CURLOPT_PASSWORD, "secret");
/* This will create a new message 100. Note that you should perform an
* EXAMINE command to obtain the UID of the next message to create and a
* SELECT to ensure you are creating the message in the OUTBOX. */
curl_easy_setopt(curl, CURLOPT_URL, "imap://imap.example.com/100");
/* In this case, we're using a callback function to specify the data. You
* could just use the CURLOPT_READDATA option to specify a FILE pointer to
* read from. */
curl_easy_setopt(curl, CURLOPT_READFUNCTION, payload_source);
curl_easy_setopt(curl, CURLOPT_READDATA, &upload_ctx);
curl_easy_setopt(curl, CURLOPT_UPLOAD, 1L);
infilesize = 0;
for(p = payload_text; *p; ++p) {
infilesize += (long)strlen(*p);
}
curl_easy_setopt(curl, CURLOPT_INFILESIZE, infilesize);
/* Perform the append */
res = curl_easy_perform(curl);
/* Check for errors */
if(res != CURLE_OK)
fprintf(stderr, "curl_easy_perform() failed: %s\n",
curl_easy_strerror(res));
/* Always cleanup */
curl_easy_cleanup(curl);
}
return (int)res;
}
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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2020, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* <DESC>
* IMAP example showing how to retreieve e-mails from a shared mailed box
* </DESC>
*/
#include <stdio.h>
#include <curl/curl.h>
/* This is a simple example showing how to fetch mail using libcurl's IMAP
* capabilities.
*
* Note that this example requires libcurl 7.66.0 or above.
*/
int main(void)
{
CURL *curl;
CURLcode res = CURLE_OK;
curl = curl_easy_init();
if(curl) {
/* Set the username and password */
curl_easy_setopt(curl, CURLOPT_USERNAME, "user");
curl_easy_setopt(curl, CURLOPT_PASSWORD, "secret");
/* Set the authorisation identity (identity to act as) */
curl_easy_setopt(curl, CURLOPT_SASL_AUTHZID, "shared-mailbox");
/* Force PLAIN authentication */
curl_easy_setopt(curl, CURLOPT_LOGIN_OPTIONS, "AUTH=PLAIN");
/* This will fetch message 1 from the user's inbox */
curl_easy_setopt(curl, CURLOPT_URL,
"imap://imap.example.com/INBOX/;UID=1");
/* Perform the fetch */
res = curl_easy_perform(curl);
/* Check for errors */
if(res != CURLE_OK)
fprintf(stderr, "curl_easy_perform() failed: %s\n",
curl_easy_strerror(res));
/* Always cleanup */
curl_easy_cleanup(curl);
}
return (int)res;
}
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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2020, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* <DESC>
* IMAP example showing how to copy an e-mail from one folder to another
* </DESC>
*/
#include <stdio.h>
#include <curl/curl.h>
/* This is a simple example showing how to copy a mail from one mailbox folder
* to another using libcurl's IMAP capabilities.
*
* Note that this example requires libcurl 7.30.0 or above.
*/
int main(void)
{
CURL *curl;
CURLcode res = CURLE_OK;
curl = curl_easy_init();
if(curl) {
/* Set username and password */
curl_easy_setopt(curl, CURLOPT_USERNAME, "user");
curl_easy_setopt(curl, CURLOPT_PASSWORD, "secret");
/* This is source mailbox folder to select */
curl_easy_setopt(curl, CURLOPT_URL, "imap://imap.example.com/INBOX");
/* Set the COPY command specifying the message ID and destination folder */
curl_easy_setopt(curl, CURLOPT_CUSTOMREQUEST, "COPY 1 FOLDER");
/* Note that to perform a move operation you will need to perform the copy,
* then mark the original mail as Deleted and EXPUNGE or CLOSE. Please see
* imap-store.c for more information on deleting messages. */
/* Perform the custom request */
res = curl_easy_perform(curl);
/* Check for errors */
if(res != CURLE_OK)
fprintf(stderr, "curl_easy_perform() failed: %s\n",
curl_easy_strerror(res));
/* Always cleanup */
curl_easy_cleanup(curl);
}
return (int)res;
}
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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2020, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* <DESC>
* IMAP example showing how to create a new folder
* </DESC>
*/
#include <stdio.h>
#include <curl/curl.h>
/* This is a simple example showing how to create a new mailbox folder using
* libcurl's IMAP capabilities.
*
* Note that this example requires libcurl 7.30.0 or above.
*/
int main(void)
{
CURL *curl;
CURLcode res = CURLE_OK;
curl = curl_easy_init();
if(curl) {
/* Set username and password */
curl_easy_setopt(curl, CURLOPT_USERNAME, "user");
curl_easy_setopt(curl, CURLOPT_PASSWORD, "secret");
/* This is just the server URL */
curl_easy_setopt(curl, CURLOPT_URL, "imap://imap.example.com");
/* Set the CREATE command specifying the new folder name */
curl_easy_setopt(curl, CURLOPT_CUSTOMREQUEST, "CREATE FOLDER");
/* Perform the custom request */
res = curl_easy_perform(curl);
/* Check for errors */
if(res != CURLE_OK)
fprintf(stderr, "curl_easy_perform() failed: %s\n",
curl_easy_strerror(res));
/* Always cleanup */
curl_easy_cleanup(curl);
}
return (int)res;
}
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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2020, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* <DESC>
* IMAP example showing how to delete a folder
* </DESC>
*/
#include <stdio.h>
#include <curl/curl.h>
/* This is a simple example showing how to delete an existing mailbox folder
* using libcurl's IMAP capabilities.
*
* Note that this example requires libcurl 7.30.0 or above.
*/
int main(void)
{
CURL *curl;
CURLcode res = CURLE_OK;
curl = curl_easy_init();
if(curl) {
/* Set username and password */
curl_easy_setopt(curl, CURLOPT_USERNAME, "user");
curl_easy_setopt(curl, CURLOPT_PASSWORD, "secret");
/* This is just the server URL */
curl_easy_setopt(curl, CURLOPT_URL, "imap://imap.example.com");
/* Set the DELETE command specifying the existing folder */
curl_easy_setopt(curl, CURLOPT_CUSTOMREQUEST, "DELETE FOLDER");
/* Perform the custom request */
res = curl_easy_perform(curl);
/* Check for errors */
if(res != CURLE_OK)
fprintf(stderr, "curl_easy_perform() failed: %s\n",
curl_easy_strerror(res));
/* Always cleanup */
curl_easy_cleanup(curl);
}
return (int)res;
}
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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2020, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* <DESC>
* IMAP example showing how to obtain information about a folder
* </DESC>
*/
#include <stdio.h>
#include <curl/curl.h>
/* This is a simple example showing how to obtain information about a mailbox
* folder using libcurl's IMAP capabilities via the EXAMINE command.
*
* Note that this example requires libcurl 7.30.0 or above.
*/
int main(void)
{
CURL *curl;
CURLcode res = CURLE_OK;
curl = curl_easy_init();
if(curl) {
/* Set username and password */
curl_easy_setopt(curl, CURLOPT_USERNAME, "user");
curl_easy_setopt(curl, CURLOPT_PASSWORD, "secret");
/* This is just the server URL */
curl_easy_setopt(curl, CURLOPT_URL, "imap://imap.example.com");
/* Set the EXAMINE command specifying the mailbox folder */
curl_easy_setopt(curl, CURLOPT_CUSTOMREQUEST, "EXAMINE OUTBOX");
/* Perform the custom request */
res = curl_easy_perform(curl);
/* Check for errors */
if(res != CURLE_OK)
fprintf(stderr, "curl_easy_perform() failed: %s\n",
curl_easy_strerror(res));
/* Always cleanup */
curl_easy_cleanup(curl);
}
return (int)res;
}
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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2020, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* <DESC>
* IMAP example showing how to retreieve e-mails
* </DESC>
*/
#include <stdio.h>
#include <curl/curl.h>
/* This is a simple example showing how to fetch mail using libcurl's IMAP
* capabilities.
*
* Note that this example requires libcurl 7.30.0 or above.
*/
int main(void)
{
CURL *curl;
CURLcode res = CURLE_OK;
curl = curl_easy_init();
if(curl) {
/* Set username and password */
curl_easy_setopt(curl, CURLOPT_USERNAME, "user");
curl_easy_setopt(curl, CURLOPT_PASSWORD, "secret");
/* This will fetch message 1 from the user's inbox */
curl_easy_setopt(curl, CURLOPT_URL,
"imap://imap.example.com/INBOX/;UID=1");
/* Perform the fetch */
res = curl_easy_perform(curl);
/* Check for errors */
if(res != CURLE_OK)
fprintf(stderr, "curl_easy_perform() failed: %s\n",
curl_easy_strerror(res));
/* Always cleanup */
curl_easy_cleanup(curl);
}
return (int)res;
}
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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2020, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* <DESC>
* IMAP example to list the folders within a mailbox
* </DESC>
*/
#include <stdio.h>
#include <curl/curl.h>
/* This is a simple example showing how to list the folders within an IMAP
* mailbox.
*
* Note that this example requires libcurl 7.30.0 or above.
*/
int main(void)
{
CURL *curl;
CURLcode res = CURLE_OK;
curl = curl_easy_init();
if(curl) {
/* Set username and password */
curl_easy_setopt(curl, CURLOPT_USERNAME, "user");
curl_easy_setopt(curl, CURLOPT_PASSWORD, "secret");
/* This will list the folders within the user's mailbox. If you want to
* list the folders within a specific folder, for example the inbox, then
* specify the folder as a path in the URL such as /INBOX */
curl_easy_setopt(curl, CURLOPT_URL, "imap://imap.example.com");
/* Perform the list */
res = curl_easy_perform(curl);
/* Check for errors */
if(res != CURLE_OK)
fprintf(stderr, "curl_easy_perform() failed: %s\n",
curl_easy_strerror(res));
/* Always cleanup */
curl_easy_cleanup(curl);
}
return (int)res;
}
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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2020, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* <DESC>
* IMAP example to list the subscribed folders
* </DESC>
*/
#include <stdio.h>
#include <curl/curl.h>
/* This is a simple example showing how to list the subscribed folders within
* an IMAP mailbox.
*
* Note that this example requires libcurl 7.30.0 or above.
*/
int main(void)
{
CURL *curl;
CURLcode res = CURLE_OK;
curl = curl_easy_init();
if(curl) {
/* Set username and password */
curl_easy_setopt(curl, CURLOPT_USERNAME, "user");
curl_easy_setopt(curl, CURLOPT_PASSWORD, "secret");
/* This is just the server URL */
curl_easy_setopt(curl, CURLOPT_URL, "imap://imap.example.com");
/* Set the LSUB command. Note the syntax is very similar to that of a LIST
command. */
curl_easy_setopt(curl, CURLOPT_CUSTOMREQUEST, "LSUB \"\" *");
/* Perform the custom request */
res = curl_easy_perform(curl);
/* Check for errors */
if(res != CURLE_OK)
fprintf(stderr, "curl_easy_perform() failed: %s\n",
curl_easy_strerror(res));
/* Always cleanup */
curl_easy_cleanup(curl);
}
return (int)res;
}
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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2020, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* <DESC>
* IMAP example using the multi interface
* </DESC>
*/
#include <stdio.h>
#include <string.h>
#include <curl/curl.h>
/* This is a simple example showing how to fetch mail using libcurl's IMAP
* capabilities. It builds on the imap-fetch.c example to demonstrate how to
* use libcurl's multi interface.
*
* Note that this example requires libcurl 7.30.0 or above.
*/
#define MULTI_PERFORM_HANG_TIMEOUT 60 * 1000
static struct timeval tvnow(void)
{
struct timeval now;
/* time() returns the value of time in seconds since the epoch */
now.tv_sec = (long)time(NULL);
now.tv_usec = 0;
return now;
}
static long tvdiff(struct timeval newer, struct timeval older)
{
return (newer.tv_sec - older.tv_sec) * 1000 +
(newer.tv_usec - older.tv_usec) / 1000;
}
int main(void)
{
CURL *curl;
CURLM *mcurl;
int still_running = 1;
struct timeval mp_start;
curl_global_init(CURL_GLOBAL_DEFAULT);
curl = curl_easy_init();
if(!curl)
return 1;
mcurl = curl_multi_init();
if(!mcurl)
return 2;
/* Set username and password */
curl_easy_setopt(curl, CURLOPT_USERNAME, "user");
curl_easy_setopt(curl, CURLOPT_PASSWORD, "secret");
/* This will fetch message 1 from the user's inbox */
curl_easy_setopt(curl, CURLOPT_URL, "imap://imap.example.com/INBOX/;UID=1");
/* Tell the multi stack about our easy handle */
curl_multi_add_handle(mcurl, curl);
/* Record the start time which we can use later */
mp_start = tvnow();
/* We start some action by calling perform right away */
curl_multi_perform(mcurl, &still_running);
while(still_running) {
struct timeval timeout;
fd_set fdread;
fd_set fdwrite;
fd_set fdexcep;
int maxfd = -1;
int rc;
CURLMcode mc; /* curl_multi_fdset() return code */
long curl_timeo = -1;
/* Initialise the file descriptors */
FD_ZERO(&fdread);
FD_ZERO(&fdwrite);
FD_ZERO(&fdexcep);
/* Set a suitable timeout to play around with */
timeout.tv_sec = 1;
timeout.tv_usec = 0;
curl_multi_timeout(mcurl, &curl_timeo);
if(curl_timeo >= 0) {
timeout.tv_sec = curl_timeo / 1000;
if(timeout.tv_sec > 1)
timeout.tv_sec = 1;
else
timeout.tv_usec = (curl_timeo % 1000) * 1000;
}
/* get file descriptors from the transfers */
mc = curl_multi_fdset(mcurl, &fdread, &fdwrite, &fdexcep, &maxfd);
if(mc != CURLM_OK) {
fprintf(stderr, "curl_multi_fdset() failed, code %d.\n", mc);
break;
}
/* On success the value of maxfd is guaranteed to be >= -1. We call
select(maxfd + 1, ...); specially in case of (maxfd == -1) there are
no fds ready yet so we call select(0, ...) --or Sleep() on Windows--
to sleep 100ms, which is the minimum suggested value in the
curl_multi_fdset() doc. */
if(maxfd == -1) {
#ifdef _WIN32
Sleep(100);
rc = 0;
#else
/* Portable sleep for platforms other than Windows. */
struct timeval wait = { 0, 100 * 1000 }; /* 100ms */
rc = select(0, NULL, NULL, NULL, &wait);
#endif
}
else {
/* Note that on some platforms 'timeout' may be modified by select().
If you need access to the original value save a copy beforehand. */
rc = select(maxfd + 1, &fdread, &fdwrite, &fdexcep, &timeout);
}
if(tvdiff(tvnow(), mp_start) > MULTI_PERFORM_HANG_TIMEOUT) {
fprintf(stderr,
"ABORTING: Since it seems that we would have run forever.\n");
break;
}
switch(rc) {
case -1: /* select error */
break;
case 0: /* timeout */
default: /* action */
curl_multi_perform(mcurl, &still_running);
break;
}
}
/* Always cleanup */
curl_multi_remove_handle(mcurl, curl);
curl_multi_cleanup(mcurl);
curl_easy_cleanup(curl);
curl_global_cleanup();
return 0;
}
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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2020, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* <DESC>
* IMAP example showing how to perform a noop
* </DESC>
*/
#include <stdio.h>
#include <curl/curl.h>
/* This is a simple example showing how to perform a noop using libcurl's IMAP
* capabilities.
*
* Note that this example requires libcurl 7.30.0 or above.
*/
int main(void)
{
CURL *curl;
CURLcode res = CURLE_OK;
curl = curl_easy_init();
if(curl) {
/* Set username and password */
curl_easy_setopt(curl, CURLOPT_USERNAME, "user");
curl_easy_setopt(curl, CURLOPT_PASSWORD, "secret");
/* This is just the server URL */
curl_easy_setopt(curl, CURLOPT_URL, "imap://imap.example.com");
/* Set the NOOP command */
curl_easy_setopt(curl, CURLOPT_CUSTOMREQUEST, "NOOP");
/* Perform the custom request */
res = curl_easy_perform(curl);
/* Check for errors */
if(res != CURLE_OK)
fprintf(stderr, "curl_easy_perform() failed: %s\n",
curl_easy_strerror(res));
/* Always cleanup */
curl_easy_cleanup(curl);
}
return (int)res;
}
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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2020, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* <DESC>
* IMAP example showing how to search for new e-mails
* </DESC>
*/
#include <stdio.h>
#include <curl/curl.h>
/* This is a simple example showing how to search for new messages using
* libcurl's IMAP capabilities.
*
* Note that this example requires libcurl 7.30.0 or above.
*/
int main(void)
{
CURL *curl;
CURLcode res = CURLE_OK;
curl = curl_easy_init();
if(curl) {
/* Set username and password */
curl_easy_setopt(curl, CURLOPT_USERNAME, "user");
curl_easy_setopt(curl, CURLOPT_PASSWORD, "secret");
/* This is mailbox folder to select */
curl_easy_setopt(curl, CURLOPT_URL, "imap://imap.example.com/INBOX");
/* Set the SEARCH command specifying what we want to search for. Note that
* this can contain a message sequence set and a number of search criteria
* keywords including flags such as ANSWERED, DELETED, DRAFT, FLAGGED, NEW,
* RECENT and SEEN. For more information about the search criteria please
* see RFC-3501 section 6.4.4. */
curl_easy_setopt(curl, CURLOPT_CUSTOMREQUEST, "SEARCH NEW");
/* Perform the custom request */
res = curl_easy_perform(curl);
/* Check for errors */
if(res != CURLE_OK)
fprintf(stderr, "curl_easy_perform() failed: %s\n",
curl_easy_strerror(res));
/* Always cleanup */
curl_easy_cleanup(curl);
}
return (int)res;
}
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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2020, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* <DESC>
* IMAP example using SSL
* </DESC>
*/
#include <stdio.h>
#include <curl/curl.h>
/* This is a simple example showing how to fetch mail using libcurl's IMAP
* capabilities. It builds on the imap-fetch.c example adding transport
* security to protect the authentication details from being snooped.
*
* Note that this example requires libcurl 7.30.0 or above.
*/
int main(void)
{
CURL *curl;
CURLcode res = CURLE_OK;
curl = curl_easy_init();
if(curl) {
/* Set username and password */
curl_easy_setopt(curl, CURLOPT_USERNAME, "user");
curl_easy_setopt(curl, CURLOPT_PASSWORD, "secret");
/* This will fetch message 1 from the user's inbox. Note the use of
* imaps:// rather than imap:// to request a SSL based connection. */
curl_easy_setopt(curl, CURLOPT_URL,
"imaps://imap.example.com/INBOX/;UID=1");
/* If you want to connect to a site who isn't using a certificate that is
* signed by one of the certs in the CA bundle you have, you can skip the
* verification of the server's certificate. This makes the connection
* A LOT LESS SECURE.
*
* If you have a CA cert for the server stored someplace else than in the
* default bundle, then the CURLOPT_CAPATH option might come handy for
* you. */
#ifdef SKIP_PEER_VERIFICATION
curl_easy_setopt(curl, CURLOPT_SSL_VERIFYPEER, 0L);
#endif
/* If the site you're connecting to uses a different host name that what
* they have mentioned in their server certificate's commonName (or
* subjectAltName) fields, libcurl will refuse to connect. You can skip
* this check, but this will make the connection less secure. */
#ifdef SKIP_HOSTNAME_VERIFICATION
curl_easy_setopt(curl, CURLOPT_SSL_VERIFYHOST, 0L);
#endif
/* Since the traffic will be encrypted, it is very useful to turn on debug
* information within libcurl to see what is happening during the
* transfer */
curl_easy_setopt(curl, CURLOPT_VERBOSE, 1L);
/* Perform the fetch */
res = curl_easy_perform(curl);
/* Check for errors */
if(res != CURLE_OK)
fprintf(stderr, "curl_easy_perform() failed: %s\n",
curl_easy_strerror(res));
/* Always cleanup */
curl_easy_cleanup(curl);
}
return (int)res;
}
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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2020, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* <DESC>
* IMAP example showing how to modify the properties of an e-mail
* </DESC>
*/
#include <stdio.h>
#include <curl/curl.h>
/* This is a simple example showing how to modify an existing mail using
* libcurl's IMAP capabilities with the STORE command.
*
* Note that this example requires libcurl 7.30.0 or above.
*/
int main(void)
{
CURL *curl;
CURLcode res = CURLE_OK;
curl = curl_easy_init();
if(curl) {
/* Set username and password */
curl_easy_setopt(curl, CURLOPT_USERNAME, "user");
curl_easy_setopt(curl, CURLOPT_PASSWORD, "secret");
/* This is the mailbox folder to select */
curl_easy_setopt(curl, CURLOPT_URL, "imap://imap.example.com/INBOX");
/* Set the STORE command with the Deleted flag for message 1. Note that
* you can use the STORE command to set other flags such as Seen, Answered,
* Flagged, Draft and Recent. */
curl_easy_setopt(curl, CURLOPT_CUSTOMREQUEST, "STORE 1 +Flags \\Deleted");
/* Perform the custom request */
res = curl_easy_perform(curl);
/* Check for errors */
if(res != CURLE_OK)
fprintf(stderr, "curl_easy_perform() failed: %s\n",
curl_easy_strerror(res));
else {
/* Set the EXPUNGE command, although you can use the CLOSE command if you
* don't want to know the result of the STORE */
curl_easy_setopt(curl, CURLOPT_CUSTOMREQUEST, "EXPUNGE");
/* Perform the second custom request */
res = curl_easy_perform(curl);
/* Check for errors */
if(res != CURLE_OK)
fprintf(stderr, "curl_easy_perform() failed: %s\n",
curl_easy_strerror(res));
}
/* Always cleanup */
curl_easy_cleanup(curl);
}
return (int)res;
}
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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2020, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* <DESC>
* IMAP example using TLS
* </DESC>
*/
#include <stdio.h>
#include <curl/curl.h>
/* This is a simple example showing how to fetch mail using libcurl's IMAP
* capabilities. It builds on the imap-fetch.c example adding transport
* security to protect the authentication details from being snooped.
*
* Note that this example requires libcurl 7.30.0 or above.
*/
int main(void)
{
CURL *curl;
CURLcode res = CURLE_OK;
curl = curl_easy_init();
if(curl) {
/* Set username and password */
curl_easy_setopt(curl, CURLOPT_USERNAME, "user");
curl_easy_setopt(curl, CURLOPT_PASSWORD, "secret");
/* This will fetch message 1 from the user's inbox */
curl_easy_setopt(curl, CURLOPT_URL,
"imap://imap.example.com/INBOX/;UID=1");
/* In this example, we'll start with a plain text connection, and upgrade
* to Transport Layer Security (TLS) using the STARTTLS command. Be careful
* of using CURLUSESSL_TRY here, because if TLS upgrade fails, the transfer
* will continue anyway - see the security discussion in the libcurl
* tutorial for more details. */
curl_easy_setopt(curl, CURLOPT_USE_SSL, (long)CURLUSESSL_ALL);
/* If your server doesn't have a valid certificate, then you can disable
* part of the Transport Layer Security protection by setting the
* CURLOPT_SSL_VERIFYPEER and CURLOPT_SSL_VERIFYHOST options to 0 (false).
* curl_easy_setopt(curl, CURLOPT_SSL_VERIFYPEER, 0L);
* curl_easy_setopt(curl, CURLOPT_SSL_VERIFYHOST, 0L);
*
* That is, in general, a bad idea. It is still better than sending your
* authentication details in plain text though. Instead, you should get
* the issuer certificate (or the host certificate if the certificate is
* self-signed) and add it to the set of certificates that are known to
* libcurl using CURLOPT_CAINFO and/or CURLOPT_CAPATH. See docs/SSLCERTS
* for more information. */
curl_easy_setopt(curl, CURLOPT_CAINFO, "/path/to/certificate.pem");
/* Since the traffic will be encrypted, it is very useful to turn on debug
* information within libcurl to see what is happening during the
* transfer */
curl_easy_setopt(curl, CURLOPT_VERBOSE, 1L);
/* Perform the fetch */
res = curl_easy_perform(curl);
/* Check for errors */
if(res != CURLE_OK)
fprintf(stderr, "curl_easy_perform() failed: %s\n",
curl_easy_strerror(res));
/* Always cleanup */
curl_easy_cleanup(curl);
}
return (int)res;
}
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#***************************************************************************
# _ _ ____ _
# Project ___| | | | _ \| |
# / __| | | | |_) | |
# | (__| |_| | _ <| |___
# \___|\___/|_| \_\_____|
#
# Copyright (C) 1998 - 2020, Daniel Stenberg, <[email protected]>, et al.
#
# This software is licensed as described in the file COPYING, which
# you should have received as part of this distribution. The terms
# are also available at https://curl.se/docs/copyright.html.
#
# You may opt to use, copy, modify, merge, publish, distribute and/or sell
# copies of the Software, and permit persons to whom the Software is
# furnished to do so, under the terms of the COPYING file.
#
# This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
# KIND, either express or implied.
#
###########################################################################
TOPDIR = ../..
include $(TOPDIR)/packages/DOS/common.dj
CFLAGS += -DFALSE=0 -DTRUE=1
LIBS = $(TOPDIR)/lib/libcurl.a
ifeq ($(USE_SSL),1)
LIBS += $(OPENSSL_ROOT)/lib/libssl.a $(OPENSSL_ROOT)/lib/libcrypt.a
endif
ifeq ($(USE_IDNA),1)
LIBS += $(LIBIDN_ROOT)/lib/dj_obj/libidn.a -liconv
endif
LIBS += $(WATT32_ROOT)/lib/libwatt.a $(ZLIB_ROOT)/libz.a
include Makefile.inc
PROGRAMS = $(patsubst %,%.exe,$(check_PROGRAMS))
all: $(PROGRAMS)
@echo Welcome to libcurl example program
%.exe: %.c
$(CC) $(CFLAGS) -o $@ $^ $(LIBS)
@echo
clean vclean realclean:
- rm -f $(PROGRAMS) depend.dj
-include depend.dj
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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2020, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* <DESC>
* A basic application source code using the multi interface doing two
* transfers in parallel.
* </DESC>
*/
#include <stdio.h>
#include <string.h>
/* somewhat unix-specific */
#include <sys/time.h>
#include <unistd.h>
/* curl stuff */
#include <curl/curl.h>
/*
* Download a HTTP file and upload an FTP file simultaneously.
*/
#define HANDLECOUNT 2 /* Number of simultaneous transfers */
#define HTTP_HANDLE 0 /* Index for the HTTP transfer */
#define FTP_HANDLE 1 /* Index for the FTP transfer */
int main(void)
{
CURL *handles[HANDLECOUNT];
CURLM *multi_handle;
int still_running = 0; /* keep number of running handles */
int i;
CURLMsg *msg; /* for picking up messages with the transfer status */
int msgs_left; /* how many messages are left */
/* Allocate one CURL handle per transfer */
for(i = 0; i<HANDLECOUNT; i++)
handles[i] = curl_easy_init();
/* set the options (I left out a few, you'll get the point anyway) */
curl_easy_setopt(handles[HTTP_HANDLE], CURLOPT_URL, "https://example.com");
curl_easy_setopt(handles[FTP_HANDLE], CURLOPT_URL, "ftp://example.com");
curl_easy_setopt(handles[FTP_HANDLE], CURLOPT_UPLOAD, 1L);
/* init a multi stack */
multi_handle = curl_multi_init();
/* add the individual transfers */
for(i = 0; i<HANDLECOUNT; i++)
curl_multi_add_handle(multi_handle, handles[i]);
/* we start some action by calling perform right away */
curl_multi_perform(multi_handle, &still_running);
while(still_running) {
struct timeval timeout;
int rc; /* select() return code */
CURLMcode mc; /* curl_multi_fdset() return code */
fd_set fdread;
fd_set fdwrite;
fd_set fdexcep;
int maxfd = -1;
long curl_timeo = -1;
FD_ZERO(&fdread);
FD_ZERO(&fdwrite);
FD_ZERO(&fdexcep);
/* set a suitable timeout to play around with */
timeout.tv_sec = 1;
timeout.tv_usec = 0;
curl_multi_timeout(multi_handle, &curl_timeo);
if(curl_timeo >= 0) {
timeout.tv_sec = curl_timeo / 1000;
if(timeout.tv_sec > 1)
timeout.tv_sec = 1;
else
timeout.tv_usec = (curl_timeo % 1000) * 1000;
}
/* get file descriptors from the transfers */
mc = curl_multi_fdset(multi_handle, &fdread, &fdwrite, &fdexcep, &maxfd);
if(mc != CURLM_OK) {
fprintf(stderr, "curl_multi_fdset() failed, code %d.\n", mc);
break;
}
/* On success the value of maxfd is guaranteed to be >= -1. We call
select(maxfd + 1, ...); specially in case of (maxfd == -1) there are
no fds ready yet so we call select(0, ...) --or Sleep() on Windows--
to sleep 100ms, which is the minimum suggested value in the
curl_multi_fdset() doc. */
if(maxfd == -1) {
#ifdef _WIN32
Sleep(100);
rc = 0;
#else
/* Portable sleep for platforms other than Windows. */
struct timeval wait = { 0, 100 * 1000 }; /* 100ms */
rc = select(0, NULL, NULL, NULL, &wait);
#endif
}
else {
/* Note that on some platforms 'timeout' may be modified by select().
If you need access to the original value save a copy beforehand. */
rc = select(maxfd + 1, &fdread, &fdwrite, &fdexcep, &timeout);
}
switch(rc) {
case -1:
/* select error */
break;
case 0: /* timeout */
default: /* action */
curl_multi_perform(multi_handle, &still_running);
break;
}
}
/* See how the transfers went */
while((msg = curl_multi_info_read(multi_handle, &msgs_left))) {
if(msg->msg == CURLMSG_DONE) {
int idx;
/* Find out which handle this message is about */
for(idx = 0; idx<HANDLECOUNT; idx++) {
int found = (msg->easy_handle == handles[idx]);
if(found)
break;
}
switch(idx) {
case HTTP_HANDLE:
printf("HTTP transfer completed with status %d\n", msg->data.result);
break;
case FTP_HANDLE:
printf("FTP transfer completed with status %d\n", msg->data.result);
break;
}
}
}
curl_multi_cleanup(multi_handle);
/* Free the CURL handles */
for(i = 0; i<HANDLECOUNT; i++)
curl_easy_cleanup(handles[i]);
return 0;
}
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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2020, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* <DESC>
* multi interface and debug callback
* </DESC>
*/
#include <stdio.h>
#include <string.h>
/* somewhat unix-specific */
#include <sys/time.h>
#include <unistd.h>
/* curl stuff */
#include <curl/curl.h>
typedef char bool;
#define TRUE 1
static
void dump(const char *text,
FILE *stream, unsigned char *ptr, size_t size,
bool nohex)
{
size_t i;
size_t c;
unsigned int width = 0x10;
if(nohex)
/* without the hex output, we can fit more on screen */
width = 0x40;
fprintf(stream, "%s, %10.10lu bytes (0x%8.8lx)\n",
text, (unsigned long)size, (unsigned long)size);
for(i = 0; i<size; i += width) {
fprintf(stream, "%4.4lx: ", (unsigned long)i);
if(!nohex) {
/* hex not disabled, show it */
for(c = 0; c < width; c++)
if(i + c < size)
fprintf(stream, "%02x ", ptr[i + c]);
else
fputs(" ", stream);
}
for(c = 0; (c < width) && (i + c < size); c++) {
/* check for 0D0A; if found, skip past and start a new line of output */
if(nohex && (i + c + 1 < size) && ptr[i + c] == 0x0D &&
ptr[i + c + 1] == 0x0A) {
i += (c + 2 - width);
break;
}
fprintf(stream, "%c",
(ptr[i + c] >= 0x20) && (ptr[i + c]<0x80)?ptr[i + c]:'.');
/* check again for 0D0A, to avoid an extra \n if it's at width */
if(nohex && (i + c + 2 < size) && ptr[i + c + 1] == 0x0D &&
ptr[i + c + 2] == 0x0A) {
i += (c + 3 - width);
break;
}
}
fputc('\n', stream); /* newline */
}
fflush(stream);
}
static
int my_trace(CURL *handle, curl_infotype type,
unsigned char *data, size_t size,
void *userp)
{
const char *text;
(void)userp;
(void)handle; /* prevent compiler warning */
switch(type) {
case CURLINFO_TEXT:
fprintf(stderr, "== Info: %s", data);
/* FALLTHROUGH */
default: /* in case a new one is introduced to shock us */
return 0;
case CURLINFO_HEADER_OUT:
text = "=> Send header";
break;
case CURLINFO_DATA_OUT:
text = "=> Send data";
break;
case CURLINFO_HEADER_IN:
text = "<= Recv header";
break;
case CURLINFO_DATA_IN:
text = "<= Recv data";
break;
}
dump(text, stderr, data, size, TRUE);
return 0;
}
/*
* Simply download a HTTP file.
*/
int main(void)
{
CURL *http_handle;
CURLM *multi_handle;
int still_running = 0; /* keep number of running handles */
http_handle = curl_easy_init();
/* set the options (I left out a few, you'll get the point anyway) */
curl_easy_setopt(http_handle, CURLOPT_URL, "https://www.example.com/");
curl_easy_setopt(http_handle, CURLOPT_DEBUGFUNCTION, my_trace);
curl_easy_setopt(http_handle, CURLOPT_VERBOSE, 1L);
/* init a multi stack */
multi_handle = curl_multi_init();
/* add the individual transfers */
curl_multi_add_handle(multi_handle, http_handle);
/* we start some action by calling perform right away */
curl_multi_perform(multi_handle, &still_running);
while(still_running) {
struct timeval timeout;
int rc; /* select() return code */
CURLMcode mc; /* curl_multi_fdset() return code */
fd_set fdread;
fd_set fdwrite;
fd_set fdexcep;
int maxfd = -1;
long curl_timeo = -1;
FD_ZERO(&fdread);
FD_ZERO(&fdwrite);
FD_ZERO(&fdexcep);
/* set a suitable timeout to play around with */
timeout.tv_sec = 1;
timeout.tv_usec = 0;
curl_multi_timeout(multi_handle, &curl_timeo);
if(curl_timeo >= 0) {
timeout.tv_sec = curl_timeo / 1000;
if(timeout.tv_sec > 1)
timeout.tv_sec = 1;
else
timeout.tv_usec = (curl_timeo % 1000) * 1000;
}
/* get file descriptors from the transfers */
mc = curl_multi_fdset(multi_handle, &fdread, &fdwrite, &fdexcep, &maxfd);
if(mc != CURLM_OK) {
fprintf(stderr, "curl_multi_fdset() failed, code %d.\n", mc);
break;
}
/* On success the value of maxfd is guaranteed to be >= -1. We call
select(maxfd + 1, ...); specially in case of (maxfd == -1) there are
no fds ready yet so we call select(0, ...) --or Sleep() on Windows--
to sleep 100ms, which is the minimum suggested value in the
curl_multi_fdset() doc. */
if(maxfd == -1) {
#ifdef _WIN32
Sleep(100);
rc = 0;
#else
/* Portable sleep for platforms other than Windows. */
struct timeval wait = { 0, 100 * 1000 }; /* 100ms */
rc = select(0, NULL, NULL, NULL, &wait);
#endif
}
else {
/* Note that on some platforms 'timeout' may be modified by select().
If you need access to the original value save a copy beforehand. */
rc = select(maxfd + 1, &fdread, &fdwrite, &fdexcep, &timeout);
}
switch(rc) {
case -1:
/* select error */
still_running = 0;
printf("select() returns error, this is badness\n");
break;
case 0:
default:
/* timeout or readable/writable sockets */
curl_multi_perform(multi_handle, &still_running);
break;
}
}
curl_multi_cleanup(multi_handle);
curl_easy_cleanup(http_handle);
return 0;
}
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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2020, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* <DESC>
* multi interface code doing two parallel HTTP transfers
* </DESC>
*/
#include <stdio.h>
#include <string.h>
/* somewhat unix-specific */
#include <sys/time.h>
#include <unistd.h>
/* curl stuff */
#include <curl/curl.h>
/*
* Simply download two HTTP files!
*/
int main(void)
{
CURL *http_handle;
CURL *http_handle2;
CURLM *multi_handle;
int still_running = 0; /* keep number of running handles */
http_handle = curl_easy_init();
http_handle2 = curl_easy_init();
/* set options */
curl_easy_setopt(http_handle, CURLOPT_URL, "https://www.example.com/");
/* set options */
curl_easy_setopt(http_handle2, CURLOPT_URL, "http://localhost/");
/* init a multi stack */
multi_handle = curl_multi_init();
/* add the individual transfers */
curl_multi_add_handle(multi_handle, http_handle);
curl_multi_add_handle(multi_handle, http_handle2);
/* we start some action by calling perform right away */
curl_multi_perform(multi_handle, &still_running);
while(still_running) {
struct timeval timeout;
int rc; /* select() return code */
CURLMcode mc; /* curl_multi_fdset() return code */
fd_set fdread;
fd_set fdwrite;
fd_set fdexcep;
int maxfd = -1;
long curl_timeo = -1;
FD_ZERO(&fdread);
FD_ZERO(&fdwrite);
FD_ZERO(&fdexcep);
/* set a suitable timeout to play around with */
timeout.tv_sec = 1;
timeout.tv_usec = 0;
curl_multi_timeout(multi_handle, &curl_timeo);
if(curl_timeo >= 0) {
timeout.tv_sec = curl_timeo / 1000;
if(timeout.tv_sec > 1)
timeout.tv_sec = 1;
else
timeout.tv_usec = (curl_timeo % 1000) * 1000;
}
/* get file descriptors from the transfers */
mc = curl_multi_fdset(multi_handle, &fdread, &fdwrite, &fdexcep, &maxfd);
if(mc != CURLM_OK) {
fprintf(stderr, "curl_multi_fdset() failed, code %d.\n", mc);
break;
}
/* On success the value of maxfd is guaranteed to be >= -1. We call
select(maxfd + 1, ...); specially in case of (maxfd == -1) there are
no fds ready yet so we call select(0, ...) --or Sleep() on Windows--
to sleep 100ms, which is the minimum suggested value in the
curl_multi_fdset() doc. */
if(maxfd == -1) {
#ifdef _WIN32
Sleep(100);
rc = 0;
#else
/* Portable sleep for platforms other than Windows. */
struct timeval wait = { 0, 100 * 1000 }; /* 100ms */
rc = select(0, NULL, NULL, NULL, &wait);
#endif
}
else {
/* Note that on some platforms 'timeout' may be modified by select().
If you need access to the original value save a copy beforehand. */
rc = select(maxfd + 1, &fdread, &fdwrite, &fdexcep, &timeout);
}
switch(rc) {
case -1:
/* select error */
break;
case 0:
default:
/* timeout or readable/writable sockets */
curl_multi_perform(multi_handle, &still_running);
break;
}
}
curl_multi_cleanup(multi_handle);
curl_easy_cleanup(http_handle);
curl_easy_cleanup(http_handle2);
return 0;
}
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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2020, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* <DESC>
* multi_socket API using libevent
* </DESC>
*/
#include <stdio.h>
#include <stdlib.h>
#include <event2/event.h>
#include <curl/curl.h>
struct event_base *base;
CURLM *curl_handle;
struct event *timeout;
typedef struct curl_context_s {
struct event *event;
curl_socket_t sockfd;
} curl_context_t;
static void curl_perform(int fd, short event, void *arg);
static curl_context_t *create_curl_context(curl_socket_t sockfd)
{
curl_context_t *context;
context = (curl_context_t *) malloc(sizeof(*context));
context->sockfd = sockfd;
context->event = event_new(base, sockfd, 0, curl_perform, context);
return context;
}
static void destroy_curl_context(curl_context_t *context)
{
event_del(context->event);
event_free(context->event);
free(context);
}
static void add_download(const char *url, int num)
{
char filename[50];
FILE *file;
CURL *handle;
snprintf(filename, 50, "%d.download", num);
file = fopen(filename, "wb");
if(!file) {
fprintf(stderr, "Error opening %s\n", filename);
return;
}
handle = curl_easy_init();
curl_easy_setopt(handle, CURLOPT_WRITEDATA, file);
curl_easy_setopt(handle, CURLOPT_PRIVATE, file);
curl_easy_setopt(handle, CURLOPT_URL, url);
curl_multi_add_handle(curl_handle, handle);
fprintf(stderr, "Added download %s -> %s\n", url, filename);
}
static void check_multi_info(void)
{
char *done_url;
CURLMsg *message;
int pending;
CURL *easy_handle;
FILE *file;
while((message = curl_multi_info_read(curl_handle, &pending))) {
switch(message->msg) {
case CURLMSG_DONE:
/* Do not use message data after calling curl_multi_remove_handle() and
curl_easy_cleanup(). As per curl_multi_info_read() docs:
"WARNING: The data the returned pointer points to will not survive
calling curl_multi_cleanup, curl_multi_remove_handle or
curl_easy_cleanup." */
easy_handle = message->easy_handle;
curl_easy_getinfo(easy_handle, CURLINFO_EFFECTIVE_URL, &done_url);
curl_easy_getinfo(easy_handle, CURLINFO_PRIVATE, &file);
printf("%s DONE\n", done_url);
curl_multi_remove_handle(curl_handle, easy_handle);
curl_easy_cleanup(easy_handle);
if(file) {
fclose(file);
}
break;
default:
fprintf(stderr, "CURLMSG default\n");
break;
}
}
}
static void curl_perform(int fd, short event, void *arg)
{
int running_handles;
int flags = 0;
curl_context_t *context;
if(event & EV_READ)
flags |= CURL_CSELECT_IN;
if(event & EV_WRITE)
flags |= CURL_CSELECT_OUT;
context = (curl_context_t *) arg;
curl_multi_socket_action(curl_handle, context->sockfd, flags,
&running_handles);
check_multi_info();
}
static void on_timeout(evutil_socket_t fd, short events, void *arg)
{
int running_handles;
curl_multi_socket_action(curl_handle, CURL_SOCKET_TIMEOUT, 0,
&running_handles);
check_multi_info();
}
static int start_timeout(CURLM *multi, long timeout_ms, void *userp)
{
if(timeout_ms < 0) {
evtimer_del(timeout);
}
else {
if(timeout_ms == 0)
timeout_ms = 1; /* 0 means directly call socket_action, but we'll do it
in a bit */
struct timeval tv;
tv.tv_sec = timeout_ms / 1000;
tv.tv_usec = (timeout_ms % 1000) * 1000;
evtimer_del(timeout);
evtimer_add(timeout, &tv);
}
return 0;
}
static int handle_socket(CURL *easy, curl_socket_t s, int action, void *userp,
void *socketp)
{
curl_context_t *curl_context;
int events = 0;
switch(action) {
case CURL_POLL_IN:
case CURL_POLL_OUT:
case CURL_POLL_INOUT:
curl_context = socketp ?
(curl_context_t *) socketp : create_curl_context(s);
curl_multi_assign(curl_handle, s, (void *) curl_context);
if(action != CURL_POLL_IN)
events |= EV_WRITE;
if(action != CURL_POLL_OUT)
events |= EV_READ;
events |= EV_PERSIST;
event_del(curl_context->event);
event_assign(curl_context->event, base, curl_context->sockfd, events,
curl_perform, curl_context);
event_add(curl_context->event, NULL);
break;
case CURL_POLL_REMOVE:
if(socketp) {
event_del(((curl_context_t*) socketp)->event);
destroy_curl_context((curl_context_t*) socketp);
curl_multi_assign(curl_handle, s, NULL);
}
break;
default:
abort();
}
return 0;
}
int main(int argc, char **argv)
{
if(argc <= 1)
return 0;
if(curl_global_init(CURL_GLOBAL_ALL)) {
fprintf(stderr, "Could not init curl\n");
return 1;
}
base = event_base_new();
timeout = evtimer_new(base, on_timeout, NULL);
curl_handle = curl_multi_init();
curl_multi_setopt(curl_handle, CURLMOPT_SOCKETFUNCTION, handle_socket);
curl_multi_setopt(curl_handle, CURLMOPT_TIMERFUNCTION, start_timeout);
while(argc-- > 1) {
add_download(argv[argc], argc);
}
event_base_dispatch(base);
curl_multi_cleanup(curl_handle);
event_free(timeout);
event_base_free(base);
libevent_global_shutdown();
curl_global_cleanup();
return 0;
}
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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2020, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* <DESC>
* using the multi interface to do a multipart formpost without blocking
* </DESC>
*/
#include <stdio.h>
#include <string.h>
#include <sys/time.h>
#include <curl/curl.h>
int main(void)
{
CURL *curl;
CURLM *multi_handle;
int still_running = 0;
struct curl_httppost *formpost = NULL;
struct curl_httppost *lastptr = NULL;
struct curl_slist *headerlist = NULL;
static const char buf[] = "Expect:";
/* Fill in the file upload field. This makes libcurl load data from
the given file name when curl_easy_perform() is called. */
curl_formadd(&formpost,
&lastptr,
CURLFORM_COPYNAME, "sendfile",
CURLFORM_FILE, "postit2.c",
CURLFORM_END);
/* Fill in the filename field */
curl_formadd(&formpost,
&lastptr,
CURLFORM_COPYNAME, "filename",
CURLFORM_COPYCONTENTS, "postit2.c",
CURLFORM_END);
/* Fill in the submit field too, even if this is rarely needed */
curl_formadd(&formpost,
&lastptr,
CURLFORM_COPYNAME, "submit",
CURLFORM_COPYCONTENTS, "send",
CURLFORM_END);
curl = curl_easy_init();
multi_handle = curl_multi_init();
/* initialize custom header list (stating that Expect: 100-continue is not
wanted */
headerlist = curl_slist_append(headerlist, buf);
if(curl && multi_handle) {
/* what URL that receives this POST */
curl_easy_setopt(curl, CURLOPT_URL, "https://www.example.com/upload.cgi");
curl_easy_setopt(curl, CURLOPT_VERBOSE, 1L);
curl_easy_setopt(curl, CURLOPT_HTTPHEADER, headerlist);
curl_easy_setopt(curl, CURLOPT_HTTPPOST, formpost);
curl_multi_add_handle(multi_handle, curl);
curl_multi_perform(multi_handle, &still_running);
while(still_running) {
struct timeval timeout;
int rc; /* select() return code */
CURLMcode mc; /* curl_multi_fdset() return code */
fd_set fdread;
fd_set fdwrite;
fd_set fdexcep;
int maxfd = -1;
long curl_timeo = -1;
FD_ZERO(&fdread);
FD_ZERO(&fdwrite);
FD_ZERO(&fdexcep);
/* set a suitable timeout to play around with */
timeout.tv_sec = 1;
timeout.tv_usec = 0;
curl_multi_timeout(multi_handle, &curl_timeo);
if(curl_timeo >= 0) {
timeout.tv_sec = curl_timeo / 1000;
if(timeout.tv_sec > 1)
timeout.tv_sec = 1;
else
timeout.tv_usec = (curl_timeo % 1000) * 1000;
}
/* get file descriptors from the transfers */
mc = curl_multi_fdset(multi_handle, &fdread, &fdwrite, &fdexcep, &maxfd);
if(mc != CURLM_OK) {
fprintf(stderr, "curl_multi_fdset() failed, code %d.\n", mc);
break;
}
/* On success the value of maxfd is guaranteed to be >= -1. We call
select(maxfd + 1, ...); specially in case of (maxfd == -1) there are
no fds ready yet so we call select(0, ...) --or Sleep() on Windows--
to sleep 100ms, which is the minimum suggested value in the
curl_multi_fdset() doc. */
if(maxfd == -1) {
#ifdef _WIN32
Sleep(100);
rc = 0;
#else
/* Portable sleep for platforms other than Windows. */
struct timeval wait = { 0, 100 * 1000 }; /* 100ms */
rc = select(0, NULL, NULL, NULL, &wait);
#endif
}
else {
/* Note that on some platforms 'timeout' may be modified by select().
If you need access to the original value save a copy beforehand. */
rc = select(maxfd + 1, &fdread, &fdwrite, &fdexcep, &timeout);
}
switch(rc) {
case -1:
/* select error */
break;
case 0:
default:
/* timeout or readable/writable sockets */
printf("perform!\n");
curl_multi_perform(multi_handle, &still_running);
printf("running: %d!\n", still_running);
break;
}
}
curl_multi_cleanup(multi_handle);
/* always cleanup */
curl_easy_cleanup(curl);
/* then cleanup the formpost chain */
curl_formfree(formpost);
/* free slist */
curl_slist_free_all(headerlist);
}
return 0;
}
+76
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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2020, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* <DESC>
* single download with the multi interface's curl_multi_poll
* </DESC>
*/
#include <stdio.h>
#include <string.h>
/* somewhat unix-specific */
#include <sys/time.h>
#include <unistd.h>
/* curl stuff */
#include <curl/curl.h>
int main(void)
{
CURL *http_handle;
CURLM *multi_handle;
int still_running = 1; /* keep number of running handles */
curl_global_init(CURL_GLOBAL_DEFAULT);
http_handle = curl_easy_init();
curl_easy_setopt(http_handle, CURLOPT_URL, "https://www.example.com/");
multi_handle = curl_multi_init();
curl_multi_add_handle(multi_handle, http_handle);
while(still_running) {
CURLMcode mc; /* curl_multi_poll() return code */
int numfds;
/* we start some action by calling perform right away */
mc = curl_multi_perform(multi_handle, &still_running);
if(still_running)
/* wait for activity, timeout or "nothing" */
mc = curl_multi_poll(multi_handle, NULL, 0, 1000, &numfds);
if(mc != CURLM_OK) {
fprintf(stderr, "curl_multi_wait() failed, code %d.\n", mc);
break;
}
}
curl_multi_remove_handle(multi_handle, http_handle);
curl_easy_cleanup(http_handle);
curl_multi_cleanup(multi_handle);
curl_global_cleanup();
return 0;
}
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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2020, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* <DESC>
* using the multi interface to do a multipart formpost without blocking
* </DESC>
*/
#include <stdio.h>
#include <string.h>
#include <sys/time.h>
#include <curl/curl.h>
int main(void)
{
CURL *curl;
CURLM *multi_handle;
int still_running = 0;
curl_mime *form = NULL;
curl_mimepart *field = NULL;
struct curl_slist *headerlist = NULL;
static const char buf[] = "Expect:";
curl = curl_easy_init();
multi_handle = curl_multi_init();
if(curl && multi_handle) {
/* Create the form */
form = curl_mime_init(curl);
/* Fill in the file upload field */
field = curl_mime_addpart(form);
curl_mime_name(field, "sendfile");
curl_mime_filedata(field, "multi-post.c");
/* Fill in the filename field */
field = curl_mime_addpart(form);
curl_mime_name(field, "filename");
curl_mime_data(field, "multi-post.c", CURL_ZERO_TERMINATED);
/* Fill in the submit field too, even if this is rarely needed */
field = curl_mime_addpart(form);
curl_mime_name(field, "submit");
curl_mime_data(field, "send", CURL_ZERO_TERMINATED);
/* initialize custom header list (stating that Expect: 100-continue is not
wanted */
headerlist = curl_slist_append(headerlist, buf);
/* what URL that receives this POST */
curl_easy_setopt(curl, CURLOPT_URL, "https://www.example.com/upload.cgi");
curl_easy_setopt(curl, CURLOPT_VERBOSE, 1L);
curl_easy_setopt(curl, CURLOPT_HTTPHEADER, headerlist);
curl_easy_setopt(curl, CURLOPT_MIMEPOST, form);
curl_multi_add_handle(multi_handle, curl);
curl_multi_perform(multi_handle, &still_running);
while(still_running) {
struct timeval timeout;
int rc; /* select() return code */
CURLMcode mc; /* curl_multi_fdset() return code */
fd_set fdread;
fd_set fdwrite;
fd_set fdexcep;
int maxfd = -1;
long curl_timeo = -1;
FD_ZERO(&fdread);
FD_ZERO(&fdwrite);
FD_ZERO(&fdexcep);
/* set a suitable timeout to play around with */
timeout.tv_sec = 1;
timeout.tv_usec = 0;
curl_multi_timeout(multi_handle, &curl_timeo);
if(curl_timeo >= 0) {
timeout.tv_sec = curl_timeo / 1000;
if(timeout.tv_sec > 1)
timeout.tv_sec = 1;
else
timeout.tv_usec = (curl_timeo % 1000) * 1000;
}
/* get file descriptors from the transfers */
mc = curl_multi_fdset(multi_handle, &fdread, &fdwrite, &fdexcep, &maxfd);
if(mc != CURLM_OK) {
fprintf(stderr, "curl_multi_fdset() failed, code %d.\n", mc);
break;
}
/* On success the value of maxfd is guaranteed to be >= -1. We call
select(maxfd + 1, ...); specially in case of (maxfd == -1) there are
no fds ready yet so we call select(0, ...) --or Sleep() on Windows--
to sleep 100ms, which is the minimum suggested value in the
curl_multi_fdset() doc. */
if(maxfd == -1) {
#ifdef _WIN32
Sleep(100);
rc = 0;
#else
/* Portable sleep for platforms other than Windows. */
struct timeval wait = { 0, 100 * 1000 }; /* 100ms */
rc = select(0, NULL, NULL, NULL, &wait);
#endif
}
else {
/* Note that on some platforms 'timeout' may be modified by select().
If you need access to the original value save a copy beforehand. */
rc = select(maxfd + 1, &fdread, &fdwrite, &fdexcep, &timeout);
}
switch(rc) {
case -1:
/* select error */
break;
case 0:
default:
/* timeout or readable/writable sockets */
printf("perform!\n");
curl_multi_perform(multi_handle, &still_running);
printf("running: %d!\n", still_running);
break;
}
}
curl_multi_cleanup(multi_handle);
/* always cleanup */
curl_easy_cleanup(curl);
/* then cleanup the form */
curl_mime_free(form);
/* free slist */
curl_slist_free_all(headerlist);
}
return 0;
}
+111
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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2020, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* <DESC>
* using the multi interface to do a single download
* </DESC>
*/
#include <stdio.h>
#include <string.h>
/* somewhat unix-specific */
#include <sys/time.h>
#include <unistd.h>
/* curl stuff */
#include <curl/curl.h>
#ifdef _WIN32
#define WAITMS(x) Sleep(x)
#else
/* Portable sleep for platforms other than Windows. */
#define WAITMS(x) \
struct timeval wait = { 0, (x) * 1000 }; \
(void)select(0, NULL, NULL, NULL, &wait)
#endif
/*
* Simply download a HTTP file.
*/
int main(void)
{
CURL *http_handle;
CURLM *multi_handle;
int still_running = 0; /* keep number of running handles */
int repeats = 0;
curl_global_init(CURL_GLOBAL_DEFAULT);
http_handle = curl_easy_init();
/* set the options (I left out a few, you'll get the point anyway) */
curl_easy_setopt(http_handle, CURLOPT_URL, "https://www.example.com/");
/* init a multi stack */
multi_handle = curl_multi_init();
/* add the individual transfers */
curl_multi_add_handle(multi_handle, http_handle);
/* we start some action by calling perform right away */
curl_multi_perform(multi_handle, &still_running);
while(still_running) {
CURLMcode mc; /* curl_multi_wait() return code */
int numfds;
/* wait for activity, timeout or "nothing" */
mc = curl_multi_wait(multi_handle, NULL, 0, 1000, &numfds);
if(mc != CURLM_OK) {
fprintf(stderr, "curl_multi_wait() failed, code %d.\n", mc);
break;
}
/* 'numfds' being zero means either a timeout or no file descriptors to
wait for. Try timeout on first occurrence, then assume no file
descriptors and no file descriptors to wait for means wait for 100
milliseconds. */
if(!numfds) {
repeats++; /* count number of repeated zero numfds */
if(repeats > 1) {
WAITMS(100); /* sleep 100 milliseconds */
}
}
else
repeats = 0;
curl_multi_perform(multi_handle, &still_running);
}
curl_multi_remove_handle(multi_handle, http_handle);
curl_easy_cleanup(http_handle);
curl_multi_cleanup(multi_handle);
curl_global_cleanup();
return 0;
}
+235
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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2020, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* <DESC>
* multi_socket API using libuv
* </DESC>
*/
/* Example application using the multi socket interface to download multiple
files in parallel, powered by libuv.
Requires libuv and (of course) libcurl.
See https://nikhilm.github.io/uvbook/ for more information on libuv.
*/
#include <stdio.h>
#include <stdlib.h>
#include <uv.h>
#include <curl/curl.h>
uv_loop_t *loop;
CURLM *curl_handle;
uv_timer_t timeout;
typedef struct curl_context_s {
uv_poll_t poll_handle;
curl_socket_t sockfd;
} curl_context_t;
static curl_context_t *create_curl_context(curl_socket_t sockfd)
{
curl_context_t *context;
context = (curl_context_t *) malloc(sizeof(*context));
context->sockfd = sockfd;
uv_poll_init_socket(loop, &context->poll_handle, sockfd);
context->poll_handle.data = context;
return context;
}
static void curl_close_cb(uv_handle_t *handle)
{
curl_context_t *context = (curl_context_t *) handle->data;
free(context);
}
static void destroy_curl_context(curl_context_t *context)
{
uv_close((uv_handle_t *) &context->poll_handle, curl_close_cb);
}
static void add_download(const char *url, int num)
{
char filename[50];
FILE *file;
CURL *handle;
snprintf(filename, 50, "%d.download", num);
file = fopen(filename, "wb");
if(!file) {
fprintf(stderr, "Error opening %s\n", filename);
return;
}
handle = curl_easy_init();
curl_easy_setopt(handle, CURLOPT_WRITEDATA, file);
curl_easy_setopt(handle, CURLOPT_PRIVATE, file);
curl_easy_setopt(handle, CURLOPT_URL, url);
curl_multi_add_handle(curl_handle, handle);
fprintf(stderr, "Added download %s -> %s\n", url, filename);
}
static void check_multi_info(void)
{
char *done_url;
CURLMsg *message;
int pending;
CURL *easy_handle;
FILE *file;
while((message = curl_multi_info_read(curl_handle, &pending))) {
switch(message->msg) {
case CURLMSG_DONE:
/* Do not use message data after calling curl_multi_remove_handle() and
curl_easy_cleanup(). As per curl_multi_info_read() docs:
"WARNING: The data the returned pointer points to will not survive
calling curl_multi_cleanup, curl_multi_remove_handle or
curl_easy_cleanup." */
easy_handle = message->easy_handle;
curl_easy_getinfo(easy_handle, CURLINFO_EFFECTIVE_URL, &done_url);
curl_easy_getinfo(easy_handle, CURLINFO_PRIVATE, &file);
printf("%s DONE\n", done_url);
curl_multi_remove_handle(curl_handle, easy_handle);
curl_easy_cleanup(easy_handle);
if(file) {
fclose(file);
}
break;
default:
fprintf(stderr, "CURLMSG default\n");
break;
}
}
}
static void curl_perform(uv_poll_t *req, int status, int events)
{
int running_handles;
int flags = 0;
curl_context_t *context;
if(events & UV_READABLE)
flags |= CURL_CSELECT_IN;
if(events & UV_WRITABLE)
flags |= CURL_CSELECT_OUT;
context = (curl_context_t *) req->data;
curl_multi_socket_action(curl_handle, context->sockfd, flags,
&running_handles);
check_multi_info();
}
static void on_timeout(uv_timer_t *req)
{
int running_handles;
curl_multi_socket_action(curl_handle, CURL_SOCKET_TIMEOUT, 0,
&running_handles);
check_multi_info();
}
static int start_timeout(CURLM *multi, long timeout_ms, void *userp)
{
if(timeout_ms < 0) {
uv_timer_stop(&timeout);
}
else {
if(timeout_ms == 0)
timeout_ms = 1; /* 0 means directly call socket_action, but we'll do it
in a bit */
uv_timer_start(&timeout, on_timeout, timeout_ms, 0);
}
return 0;
}
static int handle_socket(CURL *easy, curl_socket_t s, int action, void *userp,
void *socketp)
{
curl_context_t *curl_context;
int events = 0;
switch(action) {
case CURL_POLL_IN:
case CURL_POLL_OUT:
case CURL_POLL_INOUT:
curl_context = socketp ?
(curl_context_t *) socketp : create_curl_context(s);
curl_multi_assign(curl_handle, s, (void *) curl_context);
if(action != CURL_POLL_IN)
events |= UV_WRITABLE;
if(action != CURL_POLL_OUT)
events |= UV_READABLE;
uv_poll_start(&curl_context->poll_handle, events, curl_perform);
break;
case CURL_POLL_REMOVE:
if(socketp) {
uv_poll_stop(&((curl_context_t*)socketp)->poll_handle);
destroy_curl_context((curl_context_t*) socketp);
curl_multi_assign(curl_handle, s, NULL);
}
break;
default:
abort();
}
return 0;
}
int main(int argc, char **argv)
{
loop = uv_default_loop();
if(argc <= 1)
return 0;
if(curl_global_init(CURL_GLOBAL_ALL)) {
fprintf(stderr, "Could not init curl\n");
return 1;
}
uv_timer_init(loop, &timeout);
curl_handle = curl_multi_init();
curl_multi_setopt(curl_handle, CURLMOPT_SOCKETFUNCTION, handle_socket);
curl_multi_setopt(curl_handle, CURLMOPT_TIMERFUNCTION, start_timeout);
while(argc-- > 1) {
add_download(argv[argc], argc);
}
uv_run(loop, UV_RUN_DEFAULT);
curl_multi_cleanup(curl_handle);
return 0;
}
+94
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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2020, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* <DESC>
* A multi-threaded example that uses pthreads to fetch several files at once
* </DESC>
*/
#include <stdio.h>
#include <pthread.h>
#include <curl/curl.h>
#define NUMT 4
/*
List of URLs to fetch.
If you intend to use a SSL-based protocol here you might need to setup TLS
library mutex callbacks as described here:
https://curl.se/libcurl/c/threadsafe.html
*/
const char * const urls[NUMT]= {
"https://curl.se/",
"ftp://cool.haxx.se/",
"https://www.cag.se/",
"www.haxx.se"
};
static void *pull_one_url(void *url)
{
CURL *curl;
curl = curl_easy_init();
curl_easy_setopt(curl, CURLOPT_URL, url);
curl_easy_perform(curl); /* ignores error */
curl_easy_cleanup(curl);
return NULL;
}
/*
int pthread_create(pthread_t *new_thread_ID,
const pthread_attr_t *attr,
void * (*start_func)(void *), void *arg);
*/
int main(int argc, char **argv)
{
pthread_t tid[NUMT];
int i;
/* Must initialize libcurl before any threads are started */
curl_global_init(CURL_GLOBAL_ALL);
for(i = 0; i< NUMT; i++) {
int error = pthread_create(&tid[i],
NULL, /* default attributes please */
pull_one_url,
(void *)urls[i]);
if(0 != error)
fprintf(stderr, "Couldn't run thread number %d, errno %d\n", i, error);
else
fprintf(stderr, "Thread %d, gets %s\n", i, urls[i]);
}
/* now wait for all threads to terminate */
for(i = 0; i< NUMT; i++) {
pthread_join(tid[i], NULL);
fprintf(stderr, "Thread %d terminated\n", i);
}
curl_global_cleanup();
return 0;
}
+95
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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2020, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* <DESC>
* one way to set the necessary OpenSSL locking callbacks if you want to do
* multi-threaded transfers with HTTPS/FTPS with libcurl built to use OpenSSL.
* </DESC>
*/
/*
* This is not a complete stand-alone example.
*
* Author: Jeremy Brown
*/
#include <stdio.h>
#include <pthread.h>
#include <openssl/err.h>
#define MUTEX_TYPE pthread_mutex_t
#define MUTEX_SETUP(x) pthread_mutex_init(&(x), NULL)
#define MUTEX_CLEANUP(x) pthread_mutex_destroy(&(x))
#define MUTEX_LOCK(x) pthread_mutex_lock(&(x))
#define MUTEX_UNLOCK(x) pthread_mutex_unlock(&(x))
#define THREAD_ID pthread_self()
void handle_error(const char *file, int lineno, const char *msg)
{
fprintf(stderr, "** %s:%d %s\n", file, lineno, msg);
ERR_print_errors_fp(stderr);
/* exit(-1); */
}
/* This array will store all of the mutexes available to OpenSSL. */
static MUTEX_TYPE *mutex_buf = NULL;
static void locking_function(int mode, int n, const char *file, int line)
{
if(mode & CRYPTO_LOCK)
MUTEX_LOCK(mutex_buf[n]);
else
MUTEX_UNLOCK(mutex_buf[n]);
}
static unsigned long id_function(void)
{
return ((unsigned long)THREAD_ID);
}
int thread_setup(void)
{
int i;
mutex_buf = malloc(CRYPTO_num_locks() * sizeof(MUTEX_TYPE));
if(!mutex_buf)
return 0;
for(i = 0; i < CRYPTO_num_locks(); i++)
MUTEX_SETUP(mutex_buf[i]);
CRYPTO_set_id_callback(id_function);
CRYPTO_set_locking_callback(locking_function);
return 1;
}
int thread_cleanup(void)
{
int i;
if(!mutex_buf)
return 0;
CRYPTO_set_id_callback(NULL);
CRYPTO_set_locking_callback(NULL);
for(i = 0; i < CRYPTO_num_locks(); i++)
MUTEX_CLEANUP(mutex_buf[i]);
free(mutex_buf);
mutex_buf = NULL;
return 1;
}
+78
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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2020, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* <DESC>
* Basic URL API use.
* </DESC>
*/
#include <stdio.h>
#include <curl/curl.h>
#if !CURL_AT_LEAST_VERSION(7, 62, 0)
#error "this example requires curl 7.62.0 or later"
#endif
int main(void)
{
CURLU *h;
CURLUcode uc;
char *host;
char *path;
h = curl_url(); /* get a handle to work with */
if(!h)
return 1;
/* parse a full URL */
uc = curl_url_set(h, CURLUPART_URL, "http://example.com/path/index.html", 0);
if(uc)
goto fail;
/* extract host name from the parsed URL */
uc = curl_url_get(h, CURLUPART_HOST, &host, 0);
if(!uc) {
printf("Host name: %s\n", host);
curl_free(host);
}
/* extract the path from the parsed URL */
uc = curl_url_get(h, CURLUPART_PATH, &path, 0);
if(!uc) {
printf("Path: %s\n", path);
curl_free(path);
}
/* redirect with a relative URL */
uc = curl_url_set(h, CURLUPART_URL, "../another/second.html", 0);
if(uc)
goto fail;
/* extract the new, updated path */
uc = curl_url_get(h, CURLUPART_PATH, &path, 0);
if(!uc) {
printf("Path: %s\n", path);
curl_free(path);
}
fail:
curl_url_cleanup(h); /* free url handle */
return 0;
}
+68
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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2020, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* <DESC>
* re-using handles to do HTTP persistent connections
* </DESC>
*/
#include <stdio.h>
#include <unistd.h>
#include <curl/curl.h>
int main(void)
{
CURL *curl;
CURLcode res;
curl_global_init(CURL_GLOBAL_ALL);
curl = curl_easy_init();
if(curl) {
curl_easy_setopt(curl, CURLOPT_VERBOSE, 1L);
curl_easy_setopt(curl, CURLOPT_HEADER, 1L);
/* get the first document */
curl_easy_setopt(curl, CURLOPT_URL, "https://example.com/");
/* Perform the request, res will get the return code */
res = curl_easy_perform(curl);
/* Check for errors */
if(res != CURLE_OK)
fprintf(stderr, "curl_easy_perform() failed: %s\n",
curl_easy_strerror(res));
/* get another document from the same server using the same
connection */
curl_easy_setopt(curl, CURLOPT_URL, "https://example.com/docs/");
/* Perform the request, res will get the return code */
res = curl_easy_perform(curl);
/* Check for errors */
if(res != CURLE_OK)
fprintf(stderr, "curl_easy_perform() failed: %s\n",
curl_easy_strerror(res));
/* always cleanup */
curl_easy_cleanup(curl);
}
return 0;
}
+70
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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2020, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* <DESC>
* POP3 example showing how to retrieve e-mails from a shared mailbox
* </DESC>
*/
#include <stdio.h>
#include <curl/curl.h>
/* This is a simple example showing how to retrieve mail using libcurl's POP3
* capabilities.
*
* Note that this example requires libcurl 7.66.0 or above.
*/
int main(void)
{
CURL *curl;
CURLcode res = CURLE_OK;
curl = curl_easy_init();
if(curl) {
/* Set the username and password */
curl_easy_setopt(curl, CURLOPT_USERNAME, "user");
curl_easy_setopt(curl, CURLOPT_PASSWORD, "secret");
/* Set the authorisation identity (identity to act as) */
curl_easy_setopt(curl, CURLOPT_SASL_AUTHZID, "shared-mailbox");
/* Force PLAIN authentication */
curl_easy_setopt(curl, CURLOPT_LOGIN_OPTIONS, "AUTH=PLAIN");
/* This will retrieve message 1 from the user's mailbox */
curl_easy_setopt(curl, CURLOPT_URL, "pop3://pop.example.com/1");
/* Perform the retr */
res = curl_easy_perform(curl);
/* Check for errors */
if(res != CURLE_OK)
fprintf(stderr, "curl_easy_perform() failed: %s\n",
curl_easy_strerror(res));
/* Always cleanup */
curl_easy_cleanup(curl);
}
return (int)res;
}
+70
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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2020, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* <DESC>
* POP3 example showing how to delete e-mails
* </DESC>
*/
#include <stdio.h>
#include <curl/curl.h>
/* This is a simple example showing how to delete an existing mail using
* libcurl's POP3 capabilities.
*
* Note that this example requires libcurl 7.26.0 or above.
*/
int main(void)
{
CURL *curl;
CURLcode res = CURLE_OK;
curl = curl_easy_init();
if(curl) {
/* Set username and password */
curl_easy_setopt(curl, CURLOPT_USERNAME, "user");
curl_easy_setopt(curl, CURLOPT_PASSWORD, "secret");
/* You can specify the message either in the URL or DELE command */
curl_easy_setopt(curl, CURLOPT_URL, "pop3://pop.example.com/1");
/* Set the DELE command */
curl_easy_setopt(curl, CURLOPT_CUSTOMREQUEST, "DELE");
/* Do not perform a transfer as DELE returns no data */
curl_easy_setopt(curl, CURLOPT_NOBODY, 1L);
/* Perform the custom request */
res = curl_easy_perform(curl);
/* Check for errors */
if(res != CURLE_OK)
fprintf(stderr, "curl_easy_perform() failed: %s\n",
curl_easy_strerror(res));
/* Always cleanup */
curl_easy_cleanup(curl);
}
return (int)res;
}
+64
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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2020, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* <DESC>
* POP3 example to list the contents of a mailbox
* </DESC>
*/
#include <stdio.h>
#include <curl/curl.h>
/* This is a simple example using libcurl's POP3 capabilities to list the
* contents of a mailbox.
*
* Note that this example requires libcurl 7.20.0 or above.
*/
int main(void)
{
CURL *curl;
CURLcode res = CURLE_OK;
curl = curl_easy_init();
if(curl) {
/* Set username and password */
curl_easy_setopt(curl, CURLOPT_USERNAME, "user");
curl_easy_setopt(curl, CURLOPT_PASSWORD, "secret");
/* This will list every message of the given mailbox */
curl_easy_setopt(curl, CURLOPT_URL, "pop3://pop.example.com");
/* Perform the list */
res = curl_easy_perform(curl);
/* Check for errors */
if(res != CURLE_OK)
fprintf(stderr, "curl_easy_perform() failed: %s\n",
curl_easy_strerror(res));
/* Always cleanup */
curl_easy_cleanup(curl);
}
return (int)res;
}
+173
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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2020, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* <DESC>
* POP3 example using the multi interface
* </DESC>
*/
#include <stdio.h>
#include <string.h>
#include <curl/curl.h>
/* This is a simple example showing how to retrieve mail using libcurl's POP3
* capabilities. It builds on the pop3-retr.c example to demonstrate how to use
* libcurl's multi interface.
*
* Note that this example requires libcurl 7.20.0 or above.
*/
#define MULTI_PERFORM_HANG_TIMEOUT 60 * 1000
static struct timeval tvnow(void)
{
struct timeval now;
/* time() returns the value of time in seconds since the epoch */
now.tv_sec = (long)time(NULL);
now.tv_usec = 0;
return now;
}
static long tvdiff(struct timeval newer, struct timeval older)
{
return (newer.tv_sec - older.tv_sec) * 1000 +
(newer.tv_usec - older.tv_usec) / 1000;
}
int main(void)
{
CURL *curl;
CURLM *mcurl;
int still_running = 1;
struct timeval mp_start;
curl_global_init(CURL_GLOBAL_DEFAULT);
curl = curl_easy_init();
if(!curl)
return 1;
mcurl = curl_multi_init();
if(!mcurl)
return 2;
/* Set username and password */
curl_easy_setopt(curl, CURLOPT_USERNAME, "user");
curl_easy_setopt(curl, CURLOPT_PASSWORD, "secret");
/* This will retrieve message 1 from the user's mailbox */
curl_easy_setopt(curl, CURLOPT_URL, "pop3://pop.example.com/1");
/* Tell the multi stack about our easy handle */
curl_multi_add_handle(mcurl, curl);
/* Record the start time which we can use later */
mp_start = tvnow();
/* We start some action by calling perform right away */
curl_multi_perform(mcurl, &still_running);
while(still_running) {
struct timeval timeout;
fd_set fdread;
fd_set fdwrite;
fd_set fdexcep;
int maxfd = -1;
int rc;
CURLMcode mc; /* curl_multi_fdset() return code */
long curl_timeo = -1;
/* Initialise the file descriptors */
FD_ZERO(&fdread);
FD_ZERO(&fdwrite);
FD_ZERO(&fdexcep);
/* Set a suitable timeout to play around with */
timeout.tv_sec = 1;
timeout.tv_usec = 0;
curl_multi_timeout(mcurl, &curl_timeo);
if(curl_timeo >= 0) {
timeout.tv_sec = curl_timeo / 1000;
if(timeout.tv_sec > 1)
timeout.tv_sec = 1;
else
timeout.tv_usec = (curl_timeo % 1000) * 1000;
}
/* get file descriptors from the transfers */
mc = curl_multi_fdset(mcurl, &fdread, &fdwrite, &fdexcep, &maxfd);
if(mc != CURLM_OK) {
fprintf(stderr, "curl_multi_fdset() failed, code %d.\n", mc);
break;
}
/* On success the value of maxfd is guaranteed to be >= -1. We call
select(maxfd + 1, ...); specially in case of (maxfd == -1) there are
no fds ready yet so we call select(0, ...) --or Sleep() on Windows--
to sleep 100ms, which is the minimum suggested value in the
curl_multi_fdset() doc. */
if(maxfd == -1) {
#ifdef _WIN32
Sleep(100);
rc = 0;
#else
/* Portable sleep for platforms other than Windows. */
struct timeval wait = { 0, 100 * 1000 }; /* 100ms */
rc = select(0, NULL, NULL, NULL, &wait);
#endif
}
else {
/* Note that on some platforms 'timeout' may be modified by select().
If you need access to the original value save a copy beforehand. */
rc = select(maxfd + 1, &fdread, &fdwrite, &fdexcep, &timeout);
}
if(tvdiff(tvnow(), mp_start) > MULTI_PERFORM_HANG_TIMEOUT) {
fprintf(stderr,
"ABORTING: Since it seems that we would have run forever.\n");
break;
}
switch(rc) {
case -1: /* select error */
break;
case 0: /* timeout */
default: /* action */
curl_multi_perform(mcurl, &still_running);
break;
}
}
/* Always cleanup */
curl_multi_remove_handle(mcurl, curl);
curl_multi_cleanup(mcurl);
curl_easy_cleanup(curl);
curl_global_cleanup();
return 0;
}
+70
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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2020, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* <DESC>
* POP3 example showing how to perform a noop
* </DESC>
*/
#include <stdio.h>
#include <curl/curl.h>
/* This is a simple example showing how to perform a noop using libcurl's POP3
* capabilities.
*
* Note that this example requires libcurl 7.26.0 or above.
*/
int main(void)
{
CURL *curl;
CURLcode res = CURLE_OK;
curl = curl_easy_init();
if(curl) {
/* Set username and password */
curl_easy_setopt(curl, CURLOPT_USERNAME, "user");
curl_easy_setopt(curl, CURLOPT_PASSWORD, "secret");
/* This is just the server URL */
curl_easy_setopt(curl, CURLOPT_URL, "pop3://pop.example.com");
/* Set the NOOP command */
curl_easy_setopt(curl, CURLOPT_CUSTOMREQUEST, "NOOP");
/* Do not perform a transfer as NOOP returns no data */
curl_easy_setopt(curl, CURLOPT_NOBODY, 1L);
/* Perform the custom request */
res = curl_easy_perform(curl);
/* Check for errors */
if(res != CURLE_OK)
fprintf(stderr, "curl_easy_perform() failed: %s\n",
curl_easy_strerror(res));
/* Always cleanup */
curl_easy_cleanup(curl);
}
return (int)res;
}
+64
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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2020, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* <DESC>
* POP3 example showing how to retrieve e-mails
* </DESC>
*/
#include <stdio.h>
#include <curl/curl.h>
/* This is a simple example showing how to retrieve mail using libcurl's POP3
* capabilities.
*
* Note that this example requires libcurl 7.20.0 or above.
*/
int main(void)
{
CURL *curl;
CURLcode res = CURLE_OK;
curl = curl_easy_init();
if(curl) {
/* Set username and password */
curl_easy_setopt(curl, CURLOPT_USERNAME, "user");
curl_easy_setopt(curl, CURLOPT_PASSWORD, "secret");
/* This will retrieve message 1 from the user's mailbox */
curl_easy_setopt(curl, CURLOPT_URL, "pop3://pop.example.com/1");
/* Perform the retr */
res = curl_easy_perform(curl);
/* Check for errors */
if(res != CURLE_OK)
fprintf(stderr, "curl_easy_perform() failed: %s\n",
curl_easy_strerror(res));
/* Always cleanup */
curl_easy_cleanup(curl);
}
return (int)res;
}
+91
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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2020, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* <DESC>
* POP3 example using SSL
* </DESC>
*/
#include <stdio.h>
#include <curl/curl.h>
/* This is a simple example showing how to retrieve mail using libcurl's POP3
* capabilities. It builds on the pop3-retr.c example adding transport
* security to protect the authentication details from being snooped.
*
* Note that this example requires libcurl 7.20.0 or above.
*/
int main(void)
{
CURL *curl;
CURLcode res = CURLE_OK;
curl = curl_easy_init();
if(curl) {
/* Set username and password */
curl_easy_setopt(curl, CURLOPT_USERNAME, "user");
curl_easy_setopt(curl, CURLOPT_PASSWORD, "secret");
/* This will retrieve message 1 from the user's mailbox. Note the use of
* pop3s:// rather than pop3:// to request a SSL based connection. */
curl_easy_setopt(curl, CURLOPT_URL, "pop3s://pop.example.com/1");
/* If you want to connect to a site who isn't using a certificate that is
* signed by one of the certs in the CA bundle you have, you can skip the
* verification of the server's certificate. This makes the connection
* A LOT LESS SECURE.
*
* If you have a CA cert for the server stored someplace else than in the
* default bundle, then the CURLOPT_CAPATH option might come handy for
* you. */
#ifdef SKIP_PEER_VERIFICATION
curl_easy_setopt(curl, CURLOPT_SSL_VERIFYPEER, 0L);
#endif
/* If the site you're connecting to uses a different host name that what
* they have mentioned in their server certificate's commonName (or
* subjectAltName) fields, libcurl will refuse to connect. You can skip
* this check, but this will make the connection less secure. */
#ifdef SKIP_HOSTNAME_VERIFICATION
curl_easy_setopt(curl, CURLOPT_SSL_VERIFYHOST, 0L);
#endif
/* Since the traffic will be encrypted, it is very useful to turn on debug
* information within libcurl to see what is happening during the
* transfer */
curl_easy_setopt(curl, CURLOPT_VERBOSE, 1L);
/* Perform the retr */
res = curl_easy_perform(curl);
/* Check for errors */
if(res != CURLE_OK)
fprintf(stderr, "curl_easy_perform() failed: %s\n",
curl_easy_strerror(res));
/* Always cleanup */
curl_easy_cleanup(curl);
}
return (int)res;
}
+70
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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2020, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* <DESC>
* POP3 example showing how to obtain message statistics
* </DESC>
*/
#include <stdio.h>
#include <curl/curl.h>
/* This is a simple example showing how to obtain message statistics using
* libcurl's POP3 capabilities.
*
* Note that this example requires libcurl 7.26.0 or above.
*/
int main(void)
{
CURL *curl;
CURLcode res = CURLE_OK;
curl = curl_easy_init();
if(curl) {
/* Set username and password */
curl_easy_setopt(curl, CURLOPT_USERNAME, "user");
curl_easy_setopt(curl, CURLOPT_PASSWORD, "secret");
/* This is just the server URL */
curl_easy_setopt(curl, CURLOPT_URL, "pop3://pop.example.com");
/* Set the STAT command */
curl_easy_setopt(curl, CURLOPT_CUSTOMREQUEST, "STAT");
/* Do not perform a transfer as the data is in the response */
curl_easy_setopt(curl, CURLOPT_NOBODY, 1L);
/* Perform the custom request */
res = curl_easy_perform(curl);
/* Check for errors */
if(res != CURLE_OK)
fprintf(stderr, "curl_easy_perform() failed: %s\n",
curl_easy_strerror(res));
/* Always cleanup */
curl_easy_cleanup(curl);
}
return (int)res;
}
+91
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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2020, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* <DESC>
* POP3 example using TLS
* </DESC>
*/
#include <stdio.h>
#include <curl/curl.h>
/* This is a simple example showing how to retrieve mail using libcurl's POP3
* capabilities. It builds on the pop3-retr.c example adding transport
* security to protect the authentication details from being snooped.
*
* Note that this example requires libcurl 7.20.0 or above.
*/
int main(void)
{
CURL *curl;
CURLcode res = CURLE_OK;
curl = curl_easy_init();
if(curl) {
/* Set username and password */
curl_easy_setopt(curl, CURLOPT_USERNAME, "user");
curl_easy_setopt(curl, CURLOPT_PASSWORD, "secret");
/* This will retrieve message 1 from the user's mailbox */
curl_easy_setopt(curl, CURLOPT_URL, "pop3://pop.example.com/1");
/* In this example, we'll start with a plain text connection, and upgrade
* to Transport Layer Security (TLS) using the STLS command. Be careful of
* using CURLUSESSL_TRY here, because if TLS upgrade fails, the transfer
* will continue anyway - see the security discussion in the libcurl
* tutorial for more details. */
curl_easy_setopt(curl, CURLOPT_USE_SSL, (long)CURLUSESSL_ALL);
/* If your server doesn't have a valid certificate, then you can disable
* part of the Transport Layer Security protection by setting the
* CURLOPT_SSL_VERIFYPEER and CURLOPT_SSL_VERIFYHOST options to 0 (false).
* curl_easy_setopt(curl, CURLOPT_SSL_VERIFYPEER, 0L);
* curl_easy_setopt(curl, CURLOPT_SSL_VERIFYHOST, 0L);
*
* That is, in general, a bad idea. It is still better than sending your
* authentication details in plain text though. Instead, you should get
* the issuer certificate (or the host certificate if the certificate is
* self-signed) and add it to the set of certificates that are known to
* libcurl using CURLOPT_CAINFO and/or CURLOPT_CAPATH. See docs/SSLCERTS
* for more information. */
curl_easy_setopt(curl, CURLOPT_CAINFO, "/path/to/certificate.pem");
/* Since the traffic will be encrypted, it is very useful to turn on debug
* information within libcurl to see what is happening during the
* transfer */
curl_easy_setopt(curl, CURLOPT_VERBOSE, 1L);
/* Perform the retr */
res = curl_easy_perform(curl);
/* Check for errors */
if(res != CURLE_OK)
fprintf(stderr, "curl_easy_perform() failed: %s\n",
curl_easy_strerror(res));
/* Always cleanup */
curl_easy_cleanup(curl);
}
return (int)res;
}
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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2020, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* <DESC>
* POP3 example showing how to retrieve only the headers of an e-mail
* </DESC>
*/
#include <stdio.h>
#include <curl/curl.h>
/* This is a simple example showing how to retrieve only the headers of a mail
* using libcurl's POP3 capabilities.
*
* Note that this example requires libcurl 7.26.0 or above.
*/
int main(void)
{
CURL *curl;
CURLcode res = CURLE_OK;
curl = curl_easy_init();
if(curl) {
/* Set username and password */
curl_easy_setopt(curl, CURLOPT_USERNAME, "user");
curl_easy_setopt(curl, CURLOPT_PASSWORD, "secret");
/* This is just the server URL */
curl_easy_setopt(curl, CURLOPT_URL, "pop3://pop.example.com");
/* Set the TOP command for message 1 to only include the headers */
curl_easy_setopt(curl, CURLOPT_CUSTOMREQUEST, "TOP 1 0");
/* Perform the custom request */
res = curl_easy_perform(curl);
/* Check for errors */
if(res != CURLE_OK)
fprintf(stderr, "curl_easy_perform() failed: %s\n",
curl_easy_strerror(res));
/* Always cleanup */
curl_easy_cleanup(curl);
}
return (int)res;
}
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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2020, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* <DESC>
* POP3 example to list the contents of a mailbox by unique ID
* </DESC>
*/
#include <stdio.h>
#include <curl/curl.h>
/* This is a simple example using libcurl's POP3 capabilities to list the
* contents of a mailbox by unique ID.
*
* Note that this example requires libcurl 7.26.0 or above.
*/
int main(void)
{
CURL *curl;
CURLcode res = CURLE_OK;
curl = curl_easy_init();
if(curl) {
/* Set username and password */
curl_easy_setopt(curl, CURLOPT_USERNAME, "user");
curl_easy_setopt(curl, CURLOPT_PASSWORD, "secret");
/* This is just the server URL */
curl_easy_setopt(curl, CURLOPT_URL, "pop3://pop.example.com");
/* Set the UIDL command */
curl_easy_setopt(curl, CURLOPT_CUSTOMREQUEST, "UIDL");
/* Perform the custom request */
res = curl_easy_perform(curl);
/* Check for errors */
if(res != CURLE_OK)
fprintf(stderr, "curl_easy_perform() failed: %s\n",
curl_easy_strerror(res));
/* Always cleanup */
curl_easy_cleanup(curl);
}
return (int)res;
}
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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2020, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* <DESC>
* Issue an HTTP POST and provide the data through the read callback.
* </DESC>
*/
#include <stdio.h>
#include <string.h>
#include <curl/curl.h>
/* silly test data to POST */
static const char data[]="Lorem ipsum dolor sit amet, consectetur adipiscing "
"elit. Sed vel urna neque. Ut quis leo metus. Quisque eleifend, ex at "
"laoreet rhoncus, odio ipsum semper metus, at tempus ante urna in mauris. "
"Suspendisse ornare tempor venenatis. Ut dui neque, pellentesque a varius "
"eget, mattis vitae ligula. Fusce ut pharetra est. Ut ullamcorper mi ac "
"sollicitudin semper. Praesent sit amet tellus varius, posuere nulla non, "
"rhoncus ipsum.";
struct WriteThis {
const char *readptr;
size_t sizeleft;
};
static size_t read_callback(char *dest, size_t size, size_t nmemb, void *userp)
{
struct WriteThis *wt = (struct WriteThis *)userp;
size_t buffer_size = size*nmemb;
if(wt->sizeleft) {
/* copy as much as possible from the source to the destination */
size_t copy_this_much = wt->sizeleft;
if(copy_this_much > buffer_size)
copy_this_much = buffer_size;
memcpy(dest, wt->readptr, copy_this_much);
wt->readptr += copy_this_much;
wt->sizeleft -= copy_this_much;
return copy_this_much; /* we copied this many bytes */
}
return 0; /* no more data left to deliver */
}
int main(void)
{
CURL *curl;
CURLcode res;
struct WriteThis wt;
wt.readptr = data;
wt.sizeleft = strlen(data);
/* In windows, this will init the winsock stuff */
res = curl_global_init(CURL_GLOBAL_DEFAULT);
/* Check for errors */
if(res != CURLE_OK) {
fprintf(stderr, "curl_global_init() failed: %s\n",
curl_easy_strerror(res));
return 1;
}
/* get a curl handle */
curl = curl_easy_init();
if(curl) {
/* First set the URL that is about to receive our POST. */
curl_easy_setopt(curl, CURLOPT_URL, "https://example.com/index.cgi");
/* Now specify we want to POST data */
curl_easy_setopt(curl, CURLOPT_POST, 1L);
/* we want to use our own read function */
curl_easy_setopt(curl, CURLOPT_READFUNCTION, read_callback);
/* pointer to pass to our read function */
curl_easy_setopt(curl, CURLOPT_READDATA, &wt);
/* get verbose debug output please */
curl_easy_setopt(curl, CURLOPT_VERBOSE, 1L);
/*
If you use POST to a HTTP 1.1 server, you can send data without knowing
the size before starting the POST if you use chunked encoding. You
enable this by adding a header like "Transfer-Encoding: chunked" with
CURLOPT_HTTPHEADER. With HTTP 1.0 or without chunked transfer, you must
specify the size in the request.
*/
#ifdef USE_CHUNKED
{
struct curl_slist *chunk = NULL;
chunk = curl_slist_append(chunk, "Transfer-Encoding: chunked");
res = curl_easy_setopt(curl, CURLOPT_HTTPHEADER, chunk);
/* use curl_slist_free_all() after the *perform() call to free this
list again */
}
#else
/* Set the expected POST size. If you want to POST large amounts of data,
consider CURLOPT_POSTFIELDSIZE_LARGE */
curl_easy_setopt(curl, CURLOPT_POSTFIELDSIZE, (long)wt.sizeleft);
#endif
#ifdef DISABLE_EXPECT
/*
Using POST with HTTP 1.1 implies the use of a "Expect: 100-continue"
header. You can disable this header with CURLOPT_HTTPHEADER as usual.
NOTE: if you want chunked transfer too, you need to combine these two
since you can only set one list of headers with CURLOPT_HTTPHEADER. */
/* A less good option would be to enforce HTTP 1.0, but that might also
have other implications. */
{
struct curl_slist *chunk = NULL;
chunk = curl_slist_append(chunk, "Expect:");
res = curl_easy_setopt(curl, CURLOPT_HTTPHEADER, chunk);
/* use curl_slist_free_all() after the *perform() call to free this
list again */
}
#endif
/* Perform the request, res will get the return code */
res = curl_easy_perform(curl);
/* Check for errors */
if(res != CURLE_OK)
fprintf(stderr, "curl_easy_perform() failed: %s\n",
curl_easy_strerror(res));
/* always cleanup */
curl_easy_cleanup(curl);
}
curl_global_cleanup();
return 0;
}
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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2020, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* <DESC>
* Make a HTTP POST with data from memory and receive response in memory.
* </DESC>
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <curl/curl.h>
struct MemoryStruct {
char *memory;
size_t size;
};
static size_t
WriteMemoryCallback(void *contents, size_t size, size_t nmemb, void *userp)
{
size_t realsize = size * nmemb;
struct MemoryStruct *mem = (struct MemoryStruct *)userp;
char *ptr = realloc(mem->memory, mem->size + realsize + 1);
if(!ptr) {
/* out of memory! */
printf("not enough memory (realloc returned NULL)\n");
return 0;
}
mem->memory = ptr;
memcpy(&(mem->memory[mem->size]), contents, realsize);
mem->size += realsize;
mem->memory[mem->size] = 0;
return realsize;
}
int main(void)
{
CURL *curl;
CURLcode res;
struct MemoryStruct chunk;
static const char *postthis = "Field=1&Field=2&Field=3";
chunk.memory = malloc(1); /* will be grown as needed by realloc above */
chunk.size = 0; /* no data at this point */
curl_global_init(CURL_GLOBAL_ALL);
curl = curl_easy_init();
if(curl) {
curl_easy_setopt(curl, CURLOPT_URL, "https://www.example.org/");
/* send all data to this function */
curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, WriteMemoryCallback);
/* we pass our 'chunk' struct to the callback function */
curl_easy_setopt(curl, CURLOPT_WRITEDATA, (void *)&chunk);
/* some servers don't like requests that are made without a user-agent
field, so we provide one */
curl_easy_setopt(curl, CURLOPT_USERAGENT, "libcurl-agent/1.0");
curl_easy_setopt(curl, CURLOPT_POSTFIELDS, postthis);
/* if we don't provide POSTFIELDSIZE, libcurl will strlen() by
itself */
curl_easy_setopt(curl, CURLOPT_POSTFIELDSIZE, (long)strlen(postthis));
/* Perform the request, res will get the return code */
res = curl_easy_perform(curl);
/* Check for errors */
if(res != CURLE_OK) {
fprintf(stderr, "curl_easy_perform() failed: %s\n",
curl_easy_strerror(res));
}
else {
/*
* Now, our chunk.memory points to a memory block that is chunk.size
* bytes big and contains the remote file.
*
* Do something nice with it!
*/
printf("%s\n",chunk.memory);
}
/* always cleanup */
curl_easy_cleanup(curl);
}
free(chunk.memory);
curl_global_cleanup();
return 0;
}
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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2020, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* <DESC>
* HTTP Multipart formpost with file upload and two additional parts.
* </DESC>
*/
/* Example code that uploads a file name 'foo' to a remote script that accepts
* "HTML form based" (as described in RFC1738) uploads using HTTP POST.
*
* The imaginary form we'll fill in looks like:
*
* <form method="post" enctype="multipart/form-data" action="examplepost.cgi">
* Enter file: <input type="file" name="sendfile" size="40">
* Enter file name: <input type="text" name="filename" size="30">
* <input type="submit" value="send" name="submit">
* </form>
*
*/
#include <stdio.h>
#include <string.h>
#include <curl/curl.h>
int main(int argc, char *argv[])
{
CURL *curl;
CURLcode res;
struct curl_httppost *formpost = NULL;
struct curl_httppost *lastptr = NULL;
struct curl_slist *headerlist = NULL;
static const char buf[] = "Expect:";
curl_global_init(CURL_GLOBAL_ALL);
/* Fill in the file upload field */
curl_formadd(&formpost,
&lastptr,
CURLFORM_COPYNAME, "sendfile",
CURLFORM_FILE, "postit2.c",
CURLFORM_END);
/* Fill in the filename field */
curl_formadd(&formpost,
&lastptr,
CURLFORM_COPYNAME, "filename",
CURLFORM_COPYCONTENTS, "postit2.c",
CURLFORM_END);
/* Fill in the submit field too, even if this is rarely needed */
curl_formadd(&formpost,
&lastptr,
CURLFORM_COPYNAME, "submit",
CURLFORM_COPYCONTENTS, "send",
CURLFORM_END);
curl = curl_easy_init();
/* initialize custom header list (stating that Expect: 100-continue is not
wanted */
headerlist = curl_slist_append(headerlist, buf);
if(curl) {
/* what URL that receives this POST */
curl_easy_setopt(curl, CURLOPT_URL, "https://example.com/examplepost.cgi");
if((argc == 2) && (!strcmp(argv[1], "noexpectheader")))
/* only disable 100-continue header if explicitly requested */
curl_easy_setopt(curl, CURLOPT_HTTPHEADER, headerlist);
curl_easy_setopt(curl, CURLOPT_HTTPPOST, formpost);
/* Perform the request, res will get the return code */
res = curl_easy_perform(curl);
/* Check for errors */
if(res != CURLE_OK)
fprintf(stderr, "curl_easy_perform() failed: %s\n",
curl_easy_strerror(res));
/* always cleanup */
curl_easy_cleanup(curl);
/* then cleanup the formpost chain */
curl_formfree(formpost);
/* free slist */
curl_slist_free_all(headerlist);
}
return 0;
}
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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2020, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* <DESC>
* HTTP Multipart formpost with file upload and two additional parts.
* </DESC>
*/
/* Example code that uploads a file name 'foo' to a remote script that accepts
* "HTML form based" (as described in RFC1738) uploads using HTTP POST.
*
* The imaginary form we'll fill in looks like:
*
* <form method="post" enctype="multipart/form-data" action="examplepost.cgi">
* Enter file: <input type="file" name="sendfile" size="40">
* Enter file name: <input type="text" name="filename" size="30">
* <input type="submit" value="send" name="submit">
* </form>
*
*/
#include <stdio.h>
#include <string.h>
#include <curl/curl.h>
int main(int argc, char *argv[])
{
CURL *curl;
CURLcode res;
curl_mime *form = NULL;
curl_mimepart *field = NULL;
struct curl_slist *headerlist = NULL;
static const char buf[] = "Expect:";
curl_global_init(CURL_GLOBAL_ALL);
curl = curl_easy_init();
if(curl) {
/* Create the form */
form = curl_mime_init(curl);
/* Fill in the file upload field */
field = curl_mime_addpart(form);
curl_mime_name(field, "sendfile");
curl_mime_filedata(field, "postit2.c");
/* Fill in the filename field */
field = curl_mime_addpart(form);
curl_mime_name(field, "filename");
curl_mime_data(field, "postit2.c", CURL_ZERO_TERMINATED);
/* Fill in the submit field too, even if this is rarely needed */
field = curl_mime_addpart(form);
curl_mime_name(field, "submit");
curl_mime_data(field, "send", CURL_ZERO_TERMINATED);
/* initialize custom header list (stating that Expect: 100-continue is not
wanted */
headerlist = curl_slist_append(headerlist, buf);
/* what URL that receives this POST */
curl_easy_setopt(curl, CURLOPT_URL, "https://example.com/examplepost.cgi");
if((argc == 2) && (!strcmp(argv[1], "noexpectheader")))
/* only disable 100-continue header if explicitly requested */
curl_easy_setopt(curl, CURLOPT_HTTPHEADER, headerlist);
curl_easy_setopt(curl, CURLOPT_MIMEPOST, form);
/* Perform the request, res will get the return code */
res = curl_easy_perform(curl);
/* Check for errors */
if(res != CURLE_OK)
fprintf(stderr, "curl_easy_perform() failed: %s\n",
curl_easy_strerror(res));
/* always cleanup */
curl_easy_cleanup(curl);
/* then cleanup the form */
curl_mime_free(form);
/* free slist */
curl_slist_free_all(headerlist);
}
return 0;
}
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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2020, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* <DESC>
* Use the progress callbacks, old and/or new one depending on available
* libcurl version.
* </DESC>
*/
#include <stdio.h>
#include <curl/curl.h>
#if LIBCURL_VERSION_NUM >= 0x073d00
/* In libcurl 7.61.0, support was added for extracting the time in plain
microseconds. Older libcurl versions are stuck in using 'double' for this
information so we complicate this example a bit by supporting either
approach. */
#define TIME_IN_US 1 /* microseconds */
#define TIMETYPE curl_off_t
#define TIMEOPT CURLINFO_TOTAL_TIME_T
#define MINIMAL_PROGRESS_FUNCTIONALITY_INTERVAL 3000000
#else
#define TIMETYPE double
#define TIMEOPT CURLINFO_TOTAL_TIME
#define MINIMAL_PROGRESS_FUNCTIONALITY_INTERVAL 3
#endif
#define STOP_DOWNLOAD_AFTER_THIS_MANY_BYTES 6000
struct myprogress {
TIMETYPE lastruntime; /* type depends on version, see above */
CURL *curl;
};
/* this is how the CURLOPT_XFERINFOFUNCTION callback works */
static int xferinfo(void *p,
curl_off_t dltotal, curl_off_t dlnow,
curl_off_t ultotal, curl_off_t ulnow)
{
struct myprogress *myp = (struct myprogress *)p;
CURL *curl = myp->curl;
TIMETYPE curtime = 0;
curl_easy_getinfo(curl, TIMEOPT, &curtime);
/* under certain circumstances it may be desirable for certain functionality
to only run every N seconds, in order to do this the transaction time can
be used */
if((curtime - myp->lastruntime) >= MINIMAL_PROGRESS_FUNCTIONALITY_INTERVAL) {
myp->lastruntime = curtime;
#ifdef TIME_IN_US
fprintf(stderr, "TOTAL TIME: %" CURL_FORMAT_CURL_OFF_T ".%06ld\r\n",
(curtime / 1000000), (long)(curtime % 1000000));
#else
fprintf(stderr, "TOTAL TIME: %f \r\n", curtime);
#endif
}
fprintf(stderr, "UP: %" CURL_FORMAT_CURL_OFF_T " of %" CURL_FORMAT_CURL_OFF_T
" DOWN: %" CURL_FORMAT_CURL_OFF_T " of %" CURL_FORMAT_CURL_OFF_T
"\r\n",
ulnow, ultotal, dlnow, dltotal);
if(dlnow > STOP_DOWNLOAD_AFTER_THIS_MANY_BYTES)
return 1;
return 0;
}
#if LIBCURL_VERSION_NUM < 0x072000
/* for libcurl older than 7.32.0 (CURLOPT_PROGRESSFUNCTION) */
static int older_progress(void *p,
double dltotal, double dlnow,
double ultotal, double ulnow)
{
return xferinfo(p,
(curl_off_t)dltotal,
(curl_off_t)dlnow,
(curl_off_t)ultotal,
(curl_off_t)ulnow);
}
#endif
int main(void)
{
CURL *curl;
CURLcode res = CURLE_OK;
struct myprogress prog;
curl = curl_easy_init();
if(curl) {
prog.lastruntime = 0;
prog.curl = curl;
curl_easy_setopt(curl, CURLOPT_URL, "https://example.com/");
#if LIBCURL_VERSION_NUM >= 0x072000
/* xferinfo was introduced in 7.32.0, no earlier libcurl versions will
compile as they won't have the symbols around.
If built with a newer libcurl, but running with an older libcurl:
curl_easy_setopt() will fail in run-time trying to set the new
callback, making the older callback get used.
New libcurls will prefer the new callback and instead use that one even
if both callbacks are set. */
curl_easy_setopt(curl, CURLOPT_XFERINFOFUNCTION, xferinfo);
/* pass the struct pointer into the xferinfo function, note that this is
an alias to CURLOPT_PROGRESSDATA */
curl_easy_setopt(curl, CURLOPT_XFERINFODATA, &prog);
#else
curl_easy_setopt(curl, CURLOPT_PROGRESSFUNCTION, older_progress);
/* pass the struct pointer into the progress function */
curl_easy_setopt(curl, CURLOPT_PROGRESSDATA, &prog);
#endif
curl_easy_setopt(curl, CURLOPT_NOPROGRESS, 0L);
res = curl_easy_perform(curl);
if(res != CURLE_OK)
fprintf(stderr, "%s\n", curl_easy_strerror(res));
/* always cleanup */
curl_easy_cleanup(curl);
}
return (int)res;
}
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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2020, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* <DESC>
* Use CURLOPT_RESOLVE to feed custom IP addresses for given host name + port
* number combinations.
* </DESC>
*/
#include <stdio.h>
#include <curl/curl.h>
int main(void)
{
CURL *curl;
CURLcode res = CURLE_OK;
/* Each single name resolve string should be written using the format
HOST:PORT:ADDRESS where HOST is the name libcurl will try to resolve,
PORT is the port number of the service where libcurl wants to connect to
the HOST and ADDRESS is the numerical IP address
*/
struct curl_slist *host = curl_slist_append(NULL,
"example.com:443:127.0.0.1");
curl = curl_easy_init();
if(curl) {
curl_easy_setopt(curl, CURLOPT_RESOLVE, host);
curl_easy_setopt(curl, CURLOPT_URL, "https://example.com");
res = curl_easy_perform(curl);
/* always cleanup */
curl_easy_cleanup(curl);
}
curl_slist_free_all(host);
return (int)res;
}
+291
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/*
* Copyright (c) 2011 - 2020, Jim Hollinger
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of Jim Hollinger nor the names of its contributors
* may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
/* <DESC>
* A basic RTSP transfer
* </DESC>
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#if defined (WIN32)
# include <conio.h> /* _getch() */
#else
# include <termios.h>
# include <unistd.h>
static int _getch(void)
{
struct termios oldt, newt;
int ch;
tcgetattr(STDIN_FILENO, &oldt);
newt = oldt;
newt.c_lflag &= ~( ICANON | ECHO);
tcsetattr(STDIN_FILENO, TCSANOW, &newt);
ch = getchar();
tcsetattr(STDIN_FILENO, TCSANOW, &oldt);
return ch;
}
#endif
#include <curl/curl.h>
#define VERSION_STR "V1.0"
/* error handling macros */
#define my_curl_easy_setopt(A, B, C) \
do { \
res = curl_easy_setopt((A), (B), (C)); \
if(res != CURLE_OK) \
fprintf(stderr, "curl_easy_setopt(%s, %s, %s) failed: %d\n", \
#A, #B, #C, res); \
} while(0)
#define my_curl_easy_perform(A) \
do { \
res = curl_easy_perform(A); \
if(res != CURLE_OK) \
fprintf(stderr, "curl_easy_perform(%s) failed: %d\n", #A, res); \
} while(0)
/* send RTSP OPTIONS request */
static void rtsp_options(CURL *curl, const char *uri)
{
CURLcode res = CURLE_OK;
printf("\nRTSP: OPTIONS %s\n", uri);
my_curl_easy_setopt(curl, CURLOPT_RTSP_STREAM_URI, uri);
my_curl_easy_setopt(curl, CURLOPT_RTSP_REQUEST, (long)CURL_RTSPREQ_OPTIONS);
my_curl_easy_perform(curl);
}
/* send RTSP DESCRIBE request and write sdp response to a file */
static void rtsp_describe(CURL *curl, const char *uri,
const char *sdp_filename)
{
CURLcode res = CURLE_OK;
FILE *sdp_fp = fopen(sdp_filename, "wb");
printf("\nRTSP: DESCRIBE %s\n", uri);
if(sdp_fp == NULL) {
fprintf(stderr, "Could not open '%s' for writing\n", sdp_filename);
sdp_fp = stdout;
}
else {
printf("Writing SDP to '%s'\n", sdp_filename);
}
my_curl_easy_setopt(curl, CURLOPT_WRITEDATA, sdp_fp);
my_curl_easy_setopt(curl, CURLOPT_RTSP_REQUEST, (long)CURL_RTSPREQ_DESCRIBE);
my_curl_easy_perform(curl);
my_curl_easy_setopt(curl, CURLOPT_WRITEDATA, stdout);
if(sdp_fp != stdout) {
fclose(sdp_fp);
}
}
/* send RTSP SETUP request */
static void rtsp_setup(CURL *curl, const char *uri, const char *transport)
{
CURLcode res = CURLE_OK;
printf("\nRTSP: SETUP %s\n", uri);
printf(" TRANSPORT %s\n", transport);
my_curl_easy_setopt(curl, CURLOPT_RTSP_STREAM_URI, uri);
my_curl_easy_setopt(curl, CURLOPT_RTSP_TRANSPORT, transport);
my_curl_easy_setopt(curl, CURLOPT_RTSP_REQUEST, (long)CURL_RTSPREQ_SETUP);
my_curl_easy_perform(curl);
}
/* send RTSP PLAY request */
static void rtsp_play(CURL *curl, const char *uri, const char *range)
{
CURLcode res = CURLE_OK;
printf("\nRTSP: PLAY %s\n", uri);
my_curl_easy_setopt(curl, CURLOPT_RTSP_STREAM_URI, uri);
my_curl_easy_setopt(curl, CURLOPT_RANGE, range);
my_curl_easy_setopt(curl, CURLOPT_RTSP_REQUEST, (long)CURL_RTSPREQ_PLAY);
my_curl_easy_perform(curl);
/* switch off using range again */
my_curl_easy_setopt(curl, CURLOPT_RANGE, NULL);
}
/* send RTSP TEARDOWN request */
static void rtsp_teardown(CURL *curl, const char *uri)
{
CURLcode res = CURLE_OK;
printf("\nRTSP: TEARDOWN %s\n", uri);
my_curl_easy_setopt(curl, CURLOPT_RTSP_REQUEST, (long)CURL_RTSPREQ_TEARDOWN);
my_curl_easy_perform(curl);
}
/* convert url into an sdp filename */
static void get_sdp_filename(const char *url, char *sdp_filename,
size_t namelen)
{
const char *s = strrchr(url, '/');
strcpy(sdp_filename, "video.sdp");
if(s != NULL) {
s++;
if(s[0] != '\0') {
snprintf(sdp_filename, namelen, "%s.sdp", s);
}
}
}
/* scan sdp file for media control attribute */
static void get_media_control_attribute(const char *sdp_filename,
char *control)
{
int max_len = 256;
char *s = malloc(max_len);
FILE *sdp_fp = fopen(sdp_filename, "rb");
control[0] = '\0';
if(sdp_fp != NULL) {
while(fgets(s, max_len - 2, sdp_fp) != NULL) {
sscanf(s, " a = control: %s", control);
}
fclose(sdp_fp);
}
free(s);
}
/* main app */
int main(int argc, char * const argv[])
{
#if 1
const char *transport = "RTP/AVP;unicast;client_port=1234-1235"; /* UDP */
#else
/* TCP */
const char *transport = "RTP/AVP/TCP;unicast;client_port=1234-1235";
#endif
const char *range = "0.000-";
int rc = EXIT_SUCCESS;
char *base_name = NULL;
printf("\nRTSP request %s\n", VERSION_STR);
printf(" Project website: "
"https://github.com/BackupGGCode/rtsprequest\n");
printf(" Requires curl V7.20 or greater\n\n");
/* check command line */
if((argc != 2) && (argc != 3)) {
base_name = strrchr(argv[0], '/');
if(base_name == NULL) {
base_name = strrchr(argv[0], '\\');
}
if(base_name == NULL) {
base_name = argv[0];
}
else {
base_name++;
}
printf("Usage: %s url [transport]\n", base_name);
printf(" url of video server\n");
printf(" transport (optional) specifier for media stream"
" protocol\n");
printf(" default transport: %s\n", transport);
printf("Example: %s rtsp://192.168.0.2/media/video1\n\n", base_name);
rc = EXIT_FAILURE;
}
else {
const char *url = argv[1];
char *uri = malloc(strlen(url) + 32);
char *sdp_filename = malloc(strlen(url) + 32);
char *control = malloc(strlen(url) + 32);
CURLcode res;
get_sdp_filename(url, sdp_filename, strlen(url) + 32);
if(argc == 3) {
transport = argv[2];
}
/* initialize curl */
res = curl_global_init(CURL_GLOBAL_ALL);
if(res == CURLE_OK) {
curl_version_info_data *data = curl_version_info(CURLVERSION_NOW);
CURL *curl;
fprintf(stderr, " curl V%s loaded\n", data->version);
/* initialize this curl session */
curl = curl_easy_init();
if(curl != NULL) {
my_curl_easy_setopt(curl, CURLOPT_VERBOSE, 0L);
my_curl_easy_setopt(curl, CURLOPT_NOPROGRESS, 1L);
my_curl_easy_setopt(curl, CURLOPT_HEADERDATA, stdout);
my_curl_easy_setopt(curl, CURLOPT_URL, url);
/* request server options */
snprintf(uri, strlen(url) + 32, "%s", url);
rtsp_options(curl, uri);
/* request session description and write response to sdp file */
rtsp_describe(curl, uri, sdp_filename);
/* get media control attribute from sdp file */
get_media_control_attribute(sdp_filename, control);
/* setup media stream */
snprintf(uri, strlen(url) + 32, "%s/%s", url, control);
rtsp_setup(curl, uri, transport);
/* start playing media stream */
snprintf(uri, strlen(url) + 32, "%s/", url);
rtsp_play(curl, uri, range);
printf("Playing video, press any key to stop ...");
_getch();
printf("\n");
/* teardown session */
rtsp_teardown(curl, uri);
/* cleanup */
curl_easy_cleanup(curl);
curl = NULL;
}
else {
fprintf(stderr, "curl_easy_init() failed\n");
}
curl_global_cleanup();
}
else {
fprintf(stderr, "curl_global_init(%s) failed: %d\n",
"CURL_GLOBAL_ALL", res);
}
free(control);
free(sdp_filename);
free(uri);
}
return rc;
}
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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2020, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* <DESC>
* This is a simple example showing how a program on a non-ASCII platform
* would invoke callbacks to do its own codeset conversions instead of
* using the built-in iconv functions in libcurl.
* </DESC>
*/
/*
The IBM-1047 EBCDIC codeset is used for this example but the code
would be similar for other non-ASCII codesets.
Three callback functions are created below:
my_conv_from_ascii_to_ebcdic,
my_conv_from_ebcdic_to_ascii, and
my_conv_from_utf8_to_ebcdic
The "platform_xxx" calls represent platform-specific conversion routines.
*/
#include <stdio.h>
#include <curl/curl.h>
static CURLcode my_conv_from_ascii_to_ebcdic(char *buffer, size_t length)
{
char *tempptrin, *tempptrout;
size_t bytes = length;
int rc;
tempptrin = tempptrout = buffer;
rc = platform_a2e(&tempptrin, &bytes, &tempptrout, &bytes);
if(rc == PLATFORM_CONV_OK) {
return CURLE_OK;
}
else {
return CURLE_CONV_FAILED;
}
}
static CURLcode my_conv_from_ebcdic_to_ascii(char *buffer, size_t length)
{
char *tempptrin, *tempptrout;
size_t bytes = length;
int rc;
tempptrin = tempptrout = buffer;
rc = platform_e2a(&tempptrin, &bytes, &tempptrout, &bytes);
if(rc == PLATFORM_CONV_OK) {
return CURLE_OK;
}
else {
return CURLE_CONV_FAILED;
}
}
static CURLcode my_conv_from_utf8_to_ebcdic(char *buffer, size_t length)
{
char *tempptrin, *tempptrout;
size_t bytes = length;
int rc;
tempptrin = tempptrout = buffer;
rc = platform_u2e(&tempptrin, &bytes, &tempptrout, &bytes);
if(rc == PLATFORM_CONV_OK) {
return CURLE_OK;
}
else {
return CURLE_CONV_FAILED;
}
}
int main(void)
{
CURL *curl;
curl = curl_easy_init();
if(curl) {
curl_easy_setopt(curl, CURLOPT_URL, "https://example.com");
/* use platform-specific functions for codeset conversions */
curl_easy_setopt(curl, CURLOPT_CONV_FROM_NETWORK_FUNCTION,
my_conv_from_ascii_to_ebcdic);
curl_easy_setopt(curl, CURLOPT_CONV_TO_NETWORK_FUNCTION,
my_conv_from_ebcdic_to_ascii);
curl_easy_setopt(curl, CURLOPT_CONV_FROM_UTF8_FUNCTION,
my_conv_from_utf8_to_ebcdic);
curl_easy_perform(curl);
/* always cleanup */
curl_easy_cleanup(curl);
}
return 0;
}
+161
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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2020, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* <DESC>
* An example of curl_easy_send() and curl_easy_recv() usage.
* </DESC>
*/
#include <stdio.h>
#include <string.h>
#include <curl/curl.h>
/* Auxiliary function that waits on the socket. */
static int wait_on_socket(curl_socket_t sockfd, int for_recv, long timeout_ms)
{
struct timeval tv;
fd_set infd, outfd, errfd;
int res;
tv.tv_sec = timeout_ms / 1000;
tv.tv_usec = (timeout_ms % 1000) * 1000;
FD_ZERO(&infd);
FD_ZERO(&outfd);
FD_ZERO(&errfd);
FD_SET(sockfd, &errfd); /* always check for error */
if(for_recv) {
FD_SET(sockfd, &infd);
}
else {
FD_SET(sockfd, &outfd);
}
/* select() returns the number of signalled sockets or -1 */
res = select((int)sockfd + 1, &infd, &outfd, &errfd, &tv);
return res;
}
int main(void)
{
CURL *curl;
/* Minimalistic http request */
const char *request = "GET / HTTP/1.0\r\nHost: example.com\r\n\r\n";
size_t request_len = strlen(request);
/* A general note of caution here: if you're using curl_easy_recv() or
curl_easy_send() to implement HTTP or _any_ other protocol libcurl
supports "natively", you're doing it wrong and you should stop.
This example uses HTTP only to show how to use this API, it does not
suggest that writing an application doing this is sensible.
*/
curl = curl_easy_init();
if(curl) {
CURLcode res;
curl_socket_t sockfd;
size_t nsent_total = 0;
curl_easy_setopt(curl, CURLOPT_URL, "https://example.com");
/* Do not do the transfer - only connect to host */
curl_easy_setopt(curl, CURLOPT_CONNECT_ONLY, 1L);
res = curl_easy_perform(curl);
if(res != CURLE_OK) {
printf("Error: %s\n", curl_easy_strerror(res));
return 1;
}
/* Extract the socket from the curl handle - we'll need it for waiting. */
res = curl_easy_getinfo(curl, CURLINFO_ACTIVESOCKET, &sockfd);
if(res != CURLE_OK) {
printf("Error: %s\n", curl_easy_strerror(res));
return 1;
}
printf("Sending request.\n");
do {
/* Warning: This example program may loop indefinitely.
* A production-quality program must define a timeout and exit this loop
* as soon as the timeout has expired. */
size_t nsent;
do {
nsent = 0;
res = curl_easy_send(curl, request + nsent_total,
request_len - nsent_total, &nsent);
nsent_total += nsent;
if(res == CURLE_AGAIN && !wait_on_socket(sockfd, 0, 60000L)) {
printf("Error: timeout.\n");
return 1;
}
} while(res == CURLE_AGAIN);
if(res != CURLE_OK) {
printf("Error: %s\n", curl_easy_strerror(res));
return 1;
}
printf("Sent %" CURL_FORMAT_CURL_OFF_T " bytes.\n",
(curl_off_t)nsent);
} while(nsent_total < request_len);
printf("Reading response.\n");
for(;;) {
/* Warning: This example program may loop indefinitely (see above). */
char buf[1024];
size_t nread;
do {
nread = 0;
res = curl_easy_recv(curl, buf, sizeof(buf), &nread);
if(res == CURLE_AGAIN && !wait_on_socket(sockfd, 1, 60000L)) {
printf("Error: timeout.\n");
return 1;
}
} while(res == CURLE_AGAIN);
if(res != CURLE_OK) {
printf("Error: %s\n", curl_easy_strerror(res));
break;
}
if(nread == 0) {
/* end of the response */
break;
}
printf("Received %" CURL_FORMAT_CURL_OFF_T " bytes.\n",
(curl_off_t)nread);
}
/* always cleanup */
curl_easy_cleanup(curl);
}
return 0;
}

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