+2005-10-11 Bruno Haible <bruno@clisp.org>
+
+ * strcasecmp.c: Include limits.h.
+ (strcasecmp): Avoid integer overflow on exotic platforms.
+ * strncasecmp.c: Include limits.h.
+ (strncasecmp): Avoid integer overflow on exotic platforms.
+ Reported by Paul Eggert.
+
2005-10-06 Simon Josefsson <jas@extundo.com>
* hmac-md5.c: New file.
2004-09-08 Bruno Haible <bruno@clisp.org>
- * stdint_.h.in: New file, taken from GNU clisp.
+ * stdint_.h: New file, taken from GNU clisp.
2004-09-08 Oskar Liljeblad <oskar@osk.mine.nu>
#include "strcase.h"
#include <ctype.h>
+#include <limits.h>
#if HAVE_MBRTOWC
# include "mbuiter.h"
}
while (c1 == c2);
- return c1 - c2;
+ if (UCHAR_MAX <= INT_MAX)
+ return c1 - c2;
+ else
+ /* On machines where 'char' and 'int' are types of the same size, the
+ difference of two 'unsigned char' values - including the sign bit -
+ doesn't fit in an 'int'. */
+ return (c1 > c2 ? 1 : c1 < c2 ? -1 : 0);
}
}
/* strncasecmp.c -- case insensitive string comparator
- Copyright (C) 1998, 1999 Free Software Foundation, Inc.
+ Copyright (C) 1998, 1999, 2005 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 "strcase.h"
#include <ctype.h>
+#include <limits.h>
#define TOLOWER(Ch) (isupper (Ch) ? tolower (Ch) : (Ch))
}
while (c1 == c2);
- return c1 - c2;
+ if (UCHAR_MAX <= INT_MAX)
+ return c1 - c2;
+ else
+ /* On machines where 'char' and 'int' are types of the same size, the
+ difference of two 'unsigned char' values - including the sign bit -
+ doesn't fit in an 'int'. */
+ return (c1 > c2 ? 1 : c1 < c2 ? -1 : 0);
}