95 lines
3.2 KiB
C
95 lines
3.2 KiB
C
/*
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* strcasecmp() implementation for systems that don't have it or stricmp()
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* or strcmpi().
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*
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* Copyright (c) 1987, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include "util.h"
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#ifndef USE_OUR_OWN_STRCASECMP
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#undef yasm__strcasecmp
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#undef yasm__strncasecmp
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#endif
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#if defined(LIBC_SCCS) && !defined(lint)
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static char sccsid[] = "@(#)strcasecmp.c 8.1 (Berkeley) 6/4/93";
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#endif /* LIBC_SCCS and not lint */
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#include <ctype.h>
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int
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yasm__strcasecmp(const char *s1, const char *s2)
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{
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#ifdef HAVE_STRCASECMP
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return strcasecmp(s1, s2);
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#elif HAVE_STRICMP
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return stricmp(s1, s2);
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#elif HAVE__STRICMP
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return _stricmp(s1, s2);
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#elif HAVE_STRCMPI
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return strcmpi(s1, s2);
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#else
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const unsigned char
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*us1 = (const unsigned char *)s1,
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*us2 = (const unsigned char *)s2;
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while (tolower(*us1) == tolower(*us2++))
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if (*us1++ == '\0')
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return (0);
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return (tolower(*us1) - tolower(*--us2));
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#endif
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}
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int
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yasm__strncasecmp(const char *s1, const char *s2, size_t n)
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{
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#ifdef HAVE_STRCASECMP
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return strncasecmp(s1, s2, n);
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#elif HAVE_STRICMP
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return strnicmp(s1, s2, n);
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#elif HAVE__STRNICMP
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return _strnicmp(s1, s2, n);
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#elif HAVE_STRCMPI
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return strncmpi(s1, s2, n);
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#else
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const unsigned char
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*us1 = (const unsigned char *)s1,
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*us2 = (const unsigned char *)s2;
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if (n != 0) {
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do {
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if (tolower(*us1) != tolower(*us2++))
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return (tolower(*us1) - tolower(*--us2));
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if (*us1++ == '\0')
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break;
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} while (--n != 0);
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}
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return (0);
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#endif
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}
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