/* Locale-specific memory comparison.
- Copyright 1999, 2002 Free Software Foundation, Inc.
+ Copyright (C) 1999, 2002, 2003, 2004 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
# include <config.h>
#endif
-#include <errno.h>
-#ifndef errno
-extern int errno;
-#endif
-
-#include <sys/types.h>
+#include "memcoll.h"
-#if HAVE_STRING_H
-# include <string.h>
-#endif
+#include <errno.h>
+#include <string.h>
/* Compare S1 (with length S1LEN) and S2 (with length S2LEN) according
to the LC_COLLATE locale. S1 and S2 do not overlap, and are not
- adjacent. Temporarily modify the bytes after S1 and S2, but
- restore their original contents before returning. Set errno to an
+ adjacent. Perhaps temporarily modify the bytes after S1 and S2,
+ but restore their original contents before returning. Set errno to an
error number if there is an error, and to zero otherwise. */
int
memcoll (char *s1, size_t s1len, char *s2, size_t s2len)
{
int diff;
+
+#if HAVE_STRCOLL
+
char n1 = s1[s1len];
char n2 = s2[s2len];
s1[s1len - 1] = n1;
s2[s2len - 1] = n2;
+#else
+
+ diff = memcmp (s1, s2, s1len < s2len ? s1len : s2len);
+ if (! diff)
+ diff = s1len < s2len ? -1 : s1len != s2len;
+ errno = 0;
+
+#endif
+
return diff;
}