120 lines
3.2 KiB
C
120 lines
3.2 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: strequal.c,v 1.40 2008-10-23 11:49:19 bagder Exp $
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***************************************************************************/
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#include "setup.h"
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#include <string.h>
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#include <ctype.h>
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#ifdef HAVE_STRINGS_H
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#include <strings.h>
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#endif
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#include "strequal.h"
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int curl_strequal(const char *first, const char *second)
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{
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#if defined(HAVE_STRCASECMP)
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return !(strcasecmp)(first, second);
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#elif defined(HAVE_STRCMPI)
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return !(strcmpi)(first, second);
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#elif defined(HAVE_STRICMP)
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return !(stricmp)(first, second);
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#else
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while(*first && *second) {
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if(toupper(*first) != toupper(*second)) {
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break;
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}
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first++;
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second++;
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}
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return toupper(*first) == toupper(*second);
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#endif
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}
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int curl_strnequal(const char *first, const char *second, size_t max)
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{
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#if defined(HAVE_STRNCASECMP)
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return !strncasecmp(first, second, max);
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#elif defined(HAVE_STRNCMPI)
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return !strncmpi(first, second, max);
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#elif defined(HAVE_STRNICMP)
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return !strnicmp(first, second, max);
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#else
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while(*first && *second && max) {
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if(toupper(*first) != toupper(*second)) {
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break;
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}
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max--;
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first++;
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second++;
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}
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if(0 == max)
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return 1; /* they are equal this far */
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return toupper(*first) == toupper(*second);
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#endif
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}
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#ifndef HAVE_STRLCAT
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/*
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* The strlcat() function appends the NUL-terminated string src to the end
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* of dst. It will append at most size - strlen(dst) - 1 bytes, NUL-termi-
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* nating the result.
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*
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* The strlcpy() and strlcat() functions return the total length of the
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* string they tried to create. For strlcpy() that means the length of src.
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* For strlcat() that means the initial length of dst plus the length of
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* src. While this may seem somewhat confusing it was done to make trunca-
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* tion detection simple.
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*
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*
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*/
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size_t Curl_strlcat(char *dst, const char *src, size_t siz)
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{
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char *d = dst;
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const char *s = src;
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size_t n = siz;
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size_t dlen;
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/* Find the end of dst and adjust bytes left but don't go past end */
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while(n-- != 0 && *d != '\0')
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d++;
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dlen = d - dst;
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n = siz - dlen;
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if(n == 0)
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return(dlen + strlen(s));
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while(*s != '\0') {
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if(n != 1) {
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*d++ = *s;
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n--;
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}
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s++;
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}
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*d = '\0';
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return(dlen + (s - src)); /* count does not include NUL */
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}
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#endif
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