73ef4ff3
 Hu Chunming
提交三方库
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/* Copyright 1998 by the Massachusetts Institute of Technology.
*
* Permission to use, copy, modify, and distribute this
* software and its documentation for any purpose and without
* fee is hereby granted, provided that the above copyright
* notice appear in all copies and that both that copyright
* notice and this permission notice appear in supporting
* documentation, and that the name of M.I.T. not be used in
* advertising or publicity pertaining to distribution of the
* software without specific, written prior permission.
* M.I.T. makes no representations about the suitability of
* this software for any purpose. It is provided "as is"
* without express or implied warranty.
*/
#include "ares_setup.h"
#include "ares_strcasecmp.h"
#ifndef HAVE_STRCASECMP
int ares_strcasecmp(const char *a, const char *b)
{
#if defined(HAVE_STRCMPI)
return strcmpi(a, b);
#elif defined(HAVE_STRICMP)
return stricmp(a, b);
#else
size_t i;
for (i = 0; i < (size_t)-1; i++) {
int c1 = ISUPPER(a[i]) ? tolower(a[i]) : a[i];
int c2 = ISUPPER(b[i]) ? tolower(b[i]) : b[i];
if (c1 != c2)
return c1-c2;
if (!c1)
break;
}
return 0;
#endif
}
#endif
#ifndef HAVE_STRNCASECMP
int ares_strncasecmp(const char *a, const char *b, size_t n)
{
#if defined(HAVE_STRNCMPI)
return strncmpi(a, b, n);
#elif defined(HAVE_STRNICMP)
return strnicmp(a, b, n);
#else
size_t i;
for (i = 0; i < n; i++) {
int c1 = ISUPPER(a[i]) ? tolower(a[i]) : a[i];
int c2 = ISUPPER(b[i]) ? tolower(b[i]) : b[i];
if (c1 != c2)
return c1-c2;
if (!c1)
break;
}
return 0;
#endif
}
#endif
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