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/*
* strcasecmp.c -- compare strings, ignoring case
*
* $Id: strcasecmp.c,v 1.3 2006/03/08 12:14:16 bress Exp $
*
* This code is Copyright (c) 2002, by the authors of nmh. See the
* COPYRIGHT file in the root directory of the nmh distribution for
* complete copyright information.
*/
#include <h/mh.h>
/*
* Our version of strcasecmp has to deal with NULL strings.
* Once that is fixed in the rest of the code, we can use the
* native version, instead of this one.
*/
int
mh_strcasecmp (const char *s1, const char *s2)
{
const unsigned char *us1, *us2;
us1 = (const unsigned char *) s1,
us2 = (const unsigned char *) s2;
if (!us1)
us1 = "";
if (!us2)
us2 = "";
while (tolower(*us1) == tolower(*us2++))
if (*us1++ == '\0')
return (0);
return (tolower(*us1) - tolower(*--us2));
}
int
mh_strncasecmp (const char *s1, const char *s2, size_t n)
{
const unsigned char *us1, *us2;
if (n != 0) {
us1 = (const unsigned char *) s1,
us2 = (const unsigned char *) s2;
do {
if (tolower(*us1) != tolower(*us2++))
return (tolower(*us1) - tolower(*--us2));
if (*us1++ == '\0')
break;
} while (--n != 0);
}
return (0);
}
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