xref: /titanic_52/usr/src/lib/libbc/libc/gen/common/stricmp.c (revision 5d54f3d8999eac1762fe0a8c7177d20f1f201fae)
17c478bd9Sstevel@tonic-gate /*
27c478bd9Sstevel@tonic-gate  * Copyright 1990 Sun Microsystems, Inc.  All rights reserved.
37c478bd9Sstevel@tonic-gate  * Use is subject to license terms.
47c478bd9Sstevel@tonic-gate  */
57c478bd9Sstevel@tonic-gate 
67c478bd9Sstevel@tonic-gate /*
77c478bd9Sstevel@tonic-gate  * Copyright (c) 1987 Regents of the University of California.
87c478bd9Sstevel@tonic-gate  * All rights reserved.  The Berkeley software License Agreement
97c478bd9Sstevel@tonic-gate  * specifies the terms and conditions for redistribution.
107c478bd9Sstevel@tonic-gate  */
117c478bd9Sstevel@tonic-gate 
12*5d54f3d8Smuffin #pragma ident	"%Z%%M%	%I%	%E% SMI"
13*5d54f3d8Smuffin 
147c478bd9Sstevel@tonic-gate /*
157c478bd9Sstevel@tonic-gate  * This array is designed for mapping upper and lower case letter
167c478bd9Sstevel@tonic-gate  * together for a case independent comparison.  The mappings are
177c478bd9Sstevel@tonic-gate  * based upon ascii character sequences.
187c478bd9Sstevel@tonic-gate  */
197c478bd9Sstevel@tonic-gate static char charmap[] = {
207c478bd9Sstevel@tonic-gate 	'\000', '\001', '\002', '\003', '\004', '\005', '\006', '\007',
217c478bd9Sstevel@tonic-gate 	'\010', '\011', '\012', '\013', '\014', '\015', '\016', '\017',
227c478bd9Sstevel@tonic-gate 	'\020', '\021', '\022', '\023', '\024', '\025', '\026', '\027',
237c478bd9Sstevel@tonic-gate 	'\030', '\031', '\032', '\033', '\034', '\035', '\036', '\037',
247c478bd9Sstevel@tonic-gate 	'\040', '\041', '\042', '\043', '\044', '\045', '\046', '\047',
257c478bd9Sstevel@tonic-gate 	'\050', '\051', '\052', '\053', '\054', '\055', '\056', '\057',
267c478bd9Sstevel@tonic-gate 	'\060', '\061', '\062', '\063', '\064', '\065', '\066', '\067',
277c478bd9Sstevel@tonic-gate 	'\070', '\071', '\072', '\073', '\074', '\075', '\076', '\077',
287c478bd9Sstevel@tonic-gate 	'\100', '\141', '\142', '\143', '\144', '\145', '\146', '\147',
297c478bd9Sstevel@tonic-gate 	'\150', '\151', '\152', '\153', '\154', '\155', '\156', '\157',
307c478bd9Sstevel@tonic-gate 	'\160', '\161', '\162', '\163', '\164', '\165', '\166', '\167',
317c478bd9Sstevel@tonic-gate 	'\170', '\171', '\172', '\133', '\134', '\135', '\136', '\137',
327c478bd9Sstevel@tonic-gate 	'\140', '\141', '\142', '\143', '\144', '\145', '\146', '\147',
337c478bd9Sstevel@tonic-gate 	'\150', '\151', '\152', '\153', '\154', '\155', '\156', '\157',
347c478bd9Sstevel@tonic-gate 	'\160', '\161', '\162', '\163', '\164', '\165', '\166', '\167',
357c478bd9Sstevel@tonic-gate 	'\170', '\171', '\172', '\173', '\174', '\175', '\176', '\177',
367c478bd9Sstevel@tonic-gate 	'\200', '\201', '\202', '\203', '\204', '\205', '\206', '\207',
377c478bd9Sstevel@tonic-gate 	'\210', '\211', '\212', '\213', '\214', '\215', '\216', '\217',
387c478bd9Sstevel@tonic-gate 	'\220', '\221', '\222', '\223', '\224', '\225', '\226', '\227',
397c478bd9Sstevel@tonic-gate 	'\230', '\231', '\232', '\233', '\234', '\235', '\236', '\237',
407c478bd9Sstevel@tonic-gate 	'\240', '\241', '\242', '\243', '\244', '\245', '\246', '\247',
417c478bd9Sstevel@tonic-gate 	'\250', '\251', '\252', '\253', '\254', '\255', '\256', '\257',
427c478bd9Sstevel@tonic-gate 	'\260', '\261', '\262', '\263', '\264', '\265', '\266', '\267',
437c478bd9Sstevel@tonic-gate 	'\270', '\271', '\272', '\273', '\274', '\275', '\276', '\277',
447c478bd9Sstevel@tonic-gate 	'\300', '\341', '\342', '\343', '\344', '\345', '\346', '\347',
457c478bd9Sstevel@tonic-gate 	'\350', '\351', '\352', '\353', '\354', '\355', '\356', '\357',
467c478bd9Sstevel@tonic-gate 	'\360', '\361', '\362', '\363', '\364', '\365', '\366', '\367',
477c478bd9Sstevel@tonic-gate 	'\370', '\371', '\372', '\333', '\334', '\335', '\336', '\337',
487c478bd9Sstevel@tonic-gate 	'\340', '\341', '\342', '\343', '\344', '\345', '\346', '\347',
497c478bd9Sstevel@tonic-gate 	'\350', '\351', '\352', '\353', '\354', '\355', '\356', '\357',
507c478bd9Sstevel@tonic-gate 	'\360', '\361', '\362', '\363', '\364', '\365', '\366', '\367',
517c478bd9Sstevel@tonic-gate 	'\370', '\371', '\372', '\373', '\374', '\375', '\376', '\377',
527c478bd9Sstevel@tonic-gate };
537c478bd9Sstevel@tonic-gate 
54*5d54f3d8Smuffin int
55*5d54f3d8Smuffin strcasecmp(char *s1, char *s2)
567c478bd9Sstevel@tonic-gate {
57*5d54f3d8Smuffin 	char *cm = charmap;
587c478bd9Sstevel@tonic-gate 
597c478bd9Sstevel@tonic-gate 	while (cm[*s1] == cm[*s2++])
607c478bd9Sstevel@tonic-gate 		if (*s1++ == '\0')
617c478bd9Sstevel@tonic-gate 			return (0);
627c478bd9Sstevel@tonic-gate 	return(cm[*s1] - cm[*--s2]);
637c478bd9Sstevel@tonic-gate }
647c478bd9Sstevel@tonic-gate 
65*5d54f3d8Smuffin int
66*5d54f3d8Smuffin strncasecmp(char *s1, char *s2, int n)
677c478bd9Sstevel@tonic-gate {
68*5d54f3d8Smuffin 	char *cm = charmap;
697c478bd9Sstevel@tonic-gate 
707c478bd9Sstevel@tonic-gate 	while (--n >= 0 && cm[*s1] == cm[*s2++])
717c478bd9Sstevel@tonic-gate 		if (*s1++ == '\0')
727c478bd9Sstevel@tonic-gate 			return (0);
737c478bd9Sstevel@tonic-gate 	return(n < 0 ? 0 : cm[*s1] - cm[*--s2]);
747c478bd9Sstevel@tonic-gate }
757c478bd9Sstevel@tonic-gate 
767c478bd9Sstevel@tonic-gate /*
777c478bd9Sstevel@tonic-gate  *  For 4.0 compatibility
787c478bd9Sstevel@tonic-gate  */
79*5d54f3d8Smuffin int
80*5d54f3d8Smuffin stricmp(char *s1, char *s2)
817c478bd9Sstevel@tonic-gate {
827c478bd9Sstevel@tonic-gate 	return (strcasecmp(s1, s2));
837c478bd9Sstevel@tonic-gate }
847c478bd9Sstevel@tonic-gate 
85*5d54f3d8Smuffin int
86*5d54f3d8Smuffin strnicmp(char *s1, char *s2, int n)
877c478bd9Sstevel@tonic-gate {
887c478bd9Sstevel@tonic-gate 	return (strncasecmp(s1, s2, n));
897c478bd9Sstevel@tonic-gate }
90