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/*
* This file is part of the C library for Linux and is
* covered by the GNU Library General Public license version 2, or
* any later version.
*
* Copyright (C) 1992, 1993 Hoongjiu Lu
*
*/
#include <ansidecl.h>
#include <string.h>
#include <ctype.h>
/* Compare no more than N characters of S1 and S2, ignoring case,
returning less than, equal to or greater than zero
if S1 is lexiographically less than, equal to or
greater than S2. */
int
DEFUN(strncasecmp, (s1, s2, n),
CONST char *s1 AND CONST char *s2 AND size_t n)
{
register CONST unsigned char *p1 = (CONST unsigned char *) s1;
register CONST unsigned char *p2 = (CONST unsigned char *) s2;
register int ret;
unsigned char c1;
if (p1 == p2)
return 0;
for (; n--; p1++, p2++) {
if (ret = (c1 = tolower(*p1)) - tolower(*p2)) return ret;
if (c1 == '\0') break;
}
return (0);
}
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