270 lines
6.6 KiB
C
270 lines
6.6 KiB
C
/***************************************************************************
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* _ _ ____ _
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* Project ___| | | | _ \| |
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* / __| | | | |_) | |
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* | (__| |_| | _ <| |___
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* \___|\___/|_| \_\_____|
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*
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* Copyright (C) 1998 - 2008, Daniel Stenberg, <daniel@haxx.se>, et al.
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*
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* This software is licensed as described in the file COPYING, which
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* you should have received as part of this distribution. The terms
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* are also available at http://curl.haxx.se/docs/copyright.html.
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*
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* You may opt to use, copy, modify, merge, publish, distribute and/or sell
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* copies of the Software, and permit persons to whom the Software is
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* furnished to do so, under the terms of the COPYING file.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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* $Id: util.c,v 1.27 2008-10-01 17:34:25 danf Exp $
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***************************************************************************/
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#include "setup.h" /* portability help from the lib directory */
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#ifdef HAVE_SIGNAL_H
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#include <signal.h>
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#endif
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#ifdef HAVE_UNISTD_H
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#include <unistd.h>
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#endif
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#ifdef HAVE_SYS_SOCKET_H
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#include <sys/socket.h>
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#endif
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#ifdef HAVE_NETINET_IN_H
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#include <netinet/in.h>
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#endif
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#ifdef _XOPEN_SOURCE_EXTENDED
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/* This define is "almost" required to build on HPUX 11 */
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#include <arpa/inet.h>
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#endif
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#ifdef HAVE_NETDB_H
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#include <netdb.h>
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#endif
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#ifdef HAVE_SYS_POLL_H
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#include <sys/poll.h>
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#elif defined(HAVE_POLL_H)
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#include <poll.h>
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#endif
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#define ENABLE_CURLX_PRINTF
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/* make the curlx header define all printf() functions to use the curlx_*
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versions instead */
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#include "curlx.h" /* from the private lib dir */
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#include "getpart.h"
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#include "util.h"
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#include "timeval.h"
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#if defined(ENABLE_IPV6) && defined(__MINGW32__)
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const struct in6_addr in6addr_any = {{ IN6ADDR_ANY_INIT }};
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#endif
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void logmsg(const char *msg, ...)
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{
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va_list ap;
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char buffer[2048 + 1];
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FILE *logfp;
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int error;
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struct timeval tv;
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time_t sec;
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struct tm *now;
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char timebuf[20];
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if (!serverlogfile) {
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fprintf(stderr, "Error: serverlogfile not set\n");
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return;
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}
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tv = curlx_tvnow();
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sec = tv.tv_sec;
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now = localtime(&sec); /* not multithread safe but we don't care */
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snprintf(timebuf, sizeof(timebuf), "%02d:%02d:%02d.%06ld",
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(int)now->tm_hour, (int)now->tm_min, (int)now->tm_sec, (long)tv.tv_usec);
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va_start(ap, msg);
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vsnprintf(buffer, sizeof(buffer), msg, ap);
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va_end(ap);
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logfp = fopen(serverlogfile, "a");
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if(logfp) {
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fprintf(logfp, "%s %s\n", timebuf, buffer);
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fclose(logfp);
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}
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else {
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error = ERRNO;
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fprintf(stderr, "fopen() failed with error: %d %s\n",
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error, strerror(error));
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fprintf(stderr, "Error opening file: %s\n", serverlogfile);
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fprintf(stderr, "Msg not logged: %s %s\n", timebuf, buffer);
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}
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}
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#ifdef WIN32
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/* use instead of perror() on generic windows */
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void win32_perror (const char *msg)
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{
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char buf[512];
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DWORD err = SOCKERRNO;
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if (!FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM, NULL, err,
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LANG_NEUTRAL, buf, sizeof(buf), NULL))
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snprintf(buf, sizeof(buf), "Unknown error %lu (%#lx)", err, err);
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if (msg)
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fprintf(stderr, "%s: ", msg);
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fprintf(stderr, "%s\n", buf);
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}
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#endif /* WIN32 */
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#ifdef USE_WINSOCK
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void win32_init(void)
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{
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WORD wVersionRequested;
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WSADATA wsaData;
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int err;
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wVersionRequested = MAKEWORD(USE_WINSOCK, USE_WINSOCK);
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err = WSAStartup(wVersionRequested, &wsaData);
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if (err != 0) {
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perror("Winsock init failed");
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logmsg("Error initialising winsock -- aborting");
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exit(1);
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}
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if ( LOBYTE( wsaData.wVersion ) != USE_WINSOCK ||
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HIBYTE( wsaData.wVersion ) != USE_WINSOCK ) {
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WSACleanup();
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perror("Winsock init failed");
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logmsg("No suitable winsock.dll found -- aborting");
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exit(1);
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}
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}
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void win32_cleanup(void)
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{
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WSACleanup();
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}
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#endif /* USE_WINSOCK */
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/* set by the main code to point to where the test dir is */
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const char *path=".";
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char *test2file(long testno)
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{
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static char filename[256];
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snprintf(filename, sizeof(filename), TEST_DATA_PATH, path, testno);
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return filename;
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}
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/*
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* Portable function used for waiting a specific amount of ms.
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* Waiting indefinitely with this function is not allowed, a
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* zero or negative timeout value will return immediately.
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*
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* Return values:
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* -1 = system call error, or invalid timeout value
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* 0 = specified timeout has elapsed
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*/
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int wait_ms(int timeout_ms)
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{
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#if !defined(MSDOS) && !defined(USE_WINSOCK)
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#ifndef HAVE_POLL_FINE
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struct timeval pending_tv;
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#endif
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struct timeval initial_tv;
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int pending_ms;
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int error;
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#endif
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int r = 0;
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if(!timeout_ms)
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return 0;
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if(timeout_ms < 0) {
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SET_SOCKERRNO(EINVAL);
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return -1;
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}
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#if defined(MSDOS)
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delay(timeout_ms);
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#elif defined(USE_WINSOCK)
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Sleep(timeout_ms);
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#else
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pending_ms = timeout_ms;
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initial_tv = curlx_tvnow();
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do {
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#if defined(HAVE_POLL_FINE)
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r = poll(NULL, 0, pending_ms);
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#else
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pending_tv.tv_sec = pending_ms / 1000;
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pending_tv.tv_usec = (pending_ms % 1000) * 1000;
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r = select(0, NULL, NULL, NULL, &pending_tv);
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#endif /* HAVE_POLL_FINE */
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if(r != -1)
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break;
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error = SOCKERRNO;
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if(error == EINVAL)
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break;
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pending_ms = timeout_ms - (int)curlx_tvdiff(curlx_tvnow(), initial_tv);
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if(pending_ms <= 0)
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break;
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} while(r == -1);
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#endif /* USE_WINSOCK */
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if(r)
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r = -1;
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return r;
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}
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int write_pidfile(const char *filename)
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{
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FILE *pidfile;
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long pid;
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pid = (long)getpid();
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pidfile = fopen(filename, "w");
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if(!pidfile) {
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logmsg("Couldn't write pid file: %s %s", filename, strerror(ERRNO));
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return 0; /* fail */
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}
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fprintf(pidfile, "%ld\n", pid);
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fclose(pidfile);
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logmsg("Wrote pid %ld to %s", pid, filename);
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return 1; /* success */
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}
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void set_advisor_read_lock(const char *filename)
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{
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FILE *lockfile;
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int error = 0;
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int res;
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do {
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lockfile = fopen(filename, "wb");
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} while((lockfile == NULL) && ((error = ERRNO) == EINTR));
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if(lockfile == NULL) {
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logmsg("Error creating lock file %s error: %d %s",
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filename, error, strerror(error));
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return;
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}
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do {
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res = fclose(lockfile);
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} while(res && ((error = ERRNO) == EINTR));
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if(res)
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logmsg("Error closing lock file %s error: %d %s",
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filename, error, strerror(error));
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}
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void clear_advisor_read_lock(const char *filename)
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{
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int error = 0;
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int res;
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do {
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res = unlink(filename);
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} while(res && ((error = ERRNO) == EINTR));
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if(res)
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logmsg("Error removing lock file %s error: %d %s",
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filename, error, strerror(error));
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}
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