Reimplement this to get rid of BSD Classic license.

svn path=/trunk/; revision=3503

1 files changed, 14 insertions, 90 deletions

diff --git a/strcasecmp.c b/strcasecmp.c
index 24e7afcd..d52bd290 100644
--- a/strcasecmp.c
+++ b/strcasecmp.c
@@ -1,97 +1,21 @@
-/*
- * Copyright (c) 1987 Regents of the University of California.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms are permitted
- * provided that the above copyright notice and this paragraph are
- * duplicated in all such forms and that any documentation,
- * advertising materials, and other materials related to such
- * distribution and use acknowledge that the software was developed
- * by the University of California, Berkeley.  The name of the
- * University may not be used to endorse or promote products derived
- * from this software without specific prior written permission.
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
- * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
- * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+/* 
+ * scratch implementation of strcasecmp(), 
+ * in case your C library doesn't have it 
  */
+#include <ctype.h>
 
-#if defined(LIBC_SCCS) && !defined(lint)
-static char sccsid[] = "@(#)strcasecmp.c	5.6 (Berkeley) 6/27/88";
-#endif /* LIBC_SCCS and not lint */
-
-#if defined(QNX)
-#include <sys/types.h>
-#else
-
-#if !defined(u_char)
-typedef unsigned char u_char;
-#endif
-
-#endif
-
-/*
- * This array is designed for mapping upper and lower case letter
- * together for a case independent comparison.  The mappings are
- * based upon ascii character sequences.
- */
-static u_char charmap[] = {
-	'\000', '\001', '\002', '\003', '\004', '\005', '\006', '\007',
-	'\010', '\011', '\012', '\013', '\014', '\015', '\016', '\017',
-	'\020', '\021', '\022', '\023', '\024', '\025', '\026', '\027',
-	'\030', '\031', '\032', '\033', '\034', '\035', '\036', '\037',
-	'\040', '\041', '\042', '\043', '\044', '\045', '\046', '\047',
-	'\050', '\051', '\052', '\053', '\054', '\055', '\056', '\057',
-	'\060', '\061', '\062', '\063', '\064', '\065', '\066', '\067',
-	'\070', '\071', '\072', '\073', '\074', '\075', '\076', '\077',
-	'\100', '\141', '\142', '\143', '\144', '\145', '\146', '\147',
-	'\150', '\151', '\152', '\153', '\154', '\155', '\156', '\157',
-	'\160', '\161', '\162', '\163', '\164', '\165', '\166', '\167',
-	'\170', '\171', '\172', '\133', '\134', '\135', '\136', '\137',
-	'\140', '\141', '\142', '\143', '\144', '\145', '\146', '\147',
-	'\150', '\151', '\152', '\153', '\154', '\155', '\156', '\157',
-	'\160', '\161', '\162', '\163', '\164', '\165', '\166', '\167',
-	'\170', '\171', '\172', '\173', '\174', '\175', '\176', '\177',
-	'\200', '\201', '\202', '\203', '\204', '\205', '\206', '\207',
-	'\210', '\211', '\212', '\213', '\214', '\215', '\216', '\217',
-	'\220', '\221', '\222', '\223', '\224', '\225', '\226', '\227',
-	'\230', '\231', '\232', '\233', '\234', '\235', '\236', '\237',
-	'\240', '\241', '\242', '\243', '\244', '\245', '\246', '\247',
-	'\250', '\251', '\252', '\253', '\254', '\255', '\256', '\257',
-	'\260', '\261', '\262', '\263', '\264', '\265', '\266', '\267',
-	'\270', '\271', '\272', '\273', '\274', '\275', '\276', '\277',
-	'\300', '\341', '\342', '\343', '\344', '\345', '\346', '\347',
-	'\350', '\351', '\352', '\353', '\354', '\355', '\356', '\357',
-	'\360', '\361', '\362', '\363', '\364', '\365', '\366', '\367',
-	'\370', '\371', '\372', '\333', '\334', '\335', '\336', '\337',
-	'\340', '\341', '\342', '\343', '\344', '\345', '\346', '\347',
-	'\350', '\351', '\352', '\353', '\354', '\355', '\356', '\357',
-	'\360', '\361', '\362', '\363', '\364', '\365', '\366', '\367',
-	'\370', '\371', '\372', '\373', '\374', '\375', '\376', '\377',
-};
-
-strcasecmp(s1, s2)
-	char *s1, *s2;
+strcasecmp(char *s1, char *s2)
 {
-	register u_char	*cm = charmap,
-			*us1 = (u_char *)s1,
-			*us2 = (u_char *)s2;
-
-	while (cm[*us1] == cm[*us2++])
-		if (*us1++ == '\0')
-			return(0);
-	return(cm[*us1] - cm[*--us2]);
+    while (toupper(*s1) == toupper(*s2++))
+	if (*s1++ == '\0')
+	    return(0);
+    return(toupper(*s1) - toupper(*--s2));
 }
 
-strncasecmp(s1, s2, n)
-	char *s1, *s2;
-	register int n;
+strncasecmp(char *s1, char *s2, register int n)
 {
-	register u_char	*cm = charmap,
-			*us1 = (u_char *)s1,
-			*us2 = (u_char *)s2;
-
-	while (--n >= 0 && cm[*us1] == cm[*us2++])
-		if (*us1++ == '\0')
-			return(0);
-	return(n < 0 ? 0 : cm[*us1] - cm[*--us2]);
+    while (--n >= 0 && toupper(*s1) == toupper(*s2++))
+	if (toupper(*s1++) == '\0')
+	    return(0);
+    return(n < 0 ? 0 : toupper(*s1) - toupper(*--s2));
 }