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