curl/lib/strequal.c

/*****************************************************************************
 *                                  _   _ ____  _     
 *  Project                     ___| | | |  _ \| |    
 *                             / __| | | | |_) | |    
 *                            | (__| |_| |  _ <| |___ 
 *                             \___|\___/|_| \_\_____|
 *
 * Copyright (C) 2000, Daniel Stenberg, <daniel@haxx.se>, et al.
 *
 * In order to be useful for every potential user, curl and libcurl are
 * dual-licensed under the MPL and the MIT/X-derivate licenses.
 *
 * 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 MPL or the MIT/X-derivate
 * licenses. You may pick one of these licenses.
 *
 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
 * KIND, either express or implied.
 *
 * $Id$
 *****************************************************************************/

#include "setup.h"

#include <string.h>

int Curl_strequal(const char *first, const char *second)
{
#if defined(HAVE_STRCASECMP)
  return !strcasecmp(first, second);
#elif defined(HAVE_STRCMPI)
  return !strcmpi(first, second);
#elif defined(HAVE_STRICMP)
  return !stricmp(first, second);
#else
  while (*first && *second) {
    if (toupper(*first) != toupper(*second)) {
      break;
    }
    first++;
    second++;
  }
  return toupper(*first) == toupper(*second);
#endif
}

int Curl_strnequal(const char *first, const char *second, size_t max)
{
#if defined(HAVE_STRCASECMP)
  return !strncasecmp(first, second, max);
#elif defined(HAVE_STRCMPI)
  return !strncmpi(first, second, max);
#elif defined(HAVE_STRICMP)
  return !strnicmp(first, second, max);
#else
  while (*first && *second && max) {
    if (toupper(*first) != toupper(*second)) {
      break;
    }
    max--;
    first++;
    second++;
  }
  return toupper(*first) == toupper(*second);
#endif
}