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/* strcasecmp.c - functions for case-insensitive string comparison. */
/* Copyright (C) 1995 Free Software Foundation, Inc.
This file is part of GNU Bash, the Bourne Again SHell.
Bash is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
Bash is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with Bash. If not, see <http://www.gnu.org/licenses/>.
*/
#include <config.h>
#if !defined (HAVE_STRCASECMP)
#include <stdc.h>
#include <bashansi.h>
#include <chartypes.h>
/* Compare at most COUNT characters from string1 to string2. Case
doesn't matter. */
int
strncasecmp (string1, string2, count)
const char *string1;
const char *string2;
size_t count;
{
register const char *s1;
register const char *s2;
register int r;
if (count <= 0 || (string1 == string2))
return 0;
s1 = string1;
s2 = string2;
do
{
if ((r = TOLOWER ((unsigned char) *s1) - TOLOWER ((unsigned char) *s2)) != 0)
return r;
if (*s1++ == '\0')
break;
s2++;
}
while (--count != 0);
return (0);
}
/* strcmp (), but caseless. */
int
strcasecmp (string1, string2)
const char *string1;
const char *string2;
{
register const char *s1;
register const char *s2;
register int r;
s1 = string1;
s2 = string2;
if (s1 == s2)
return (0);
while ((r = TOLOWER ((unsigned char)*s1) - TOLOWER ((unsigned char)*s2)) == 0)
{
if (*s1++ == '\0')
return 0;
s2++;
}
return (r);
}
#endif /* !HAVE_STRCASECMP */
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