17c478bd9Sstevel@tonic-gate /*
27c478bd9Sstevel@tonic-gate  * Copyright (c) 1987, 1993
37c478bd9Sstevel@tonic-gate  *    The Regents of the University of California.  All rights reserved.
47c478bd9Sstevel@tonic-gate  *
57c478bd9Sstevel@tonic-gate  * Redistribution and use in source and binary forms, with or without
67c478bd9Sstevel@tonic-gate  * modification, are permitted provided that the following conditions
77c478bd9Sstevel@tonic-gate  * are met:
87c478bd9Sstevel@tonic-gate  * 1. Redistributions of source code must retain the above copyright
97c478bd9Sstevel@tonic-gate  *    notice, this list of conditions and the following disclaimer.
107c478bd9Sstevel@tonic-gate  * 2. Redistributions in binary form must reproduce the above copyright
117c478bd9Sstevel@tonic-gate  *    notice, this list of conditions and the following disclaimer in the
127c478bd9Sstevel@tonic-gate  *    documentation and/or other materials provided with the distribution.
137c478bd9Sstevel@tonic-gate  * 3. All advertising materials mentioning features or use of this software
147c478bd9Sstevel@tonic-gate  *    must display the following acknowledgement:
157c478bd9Sstevel@tonic-gate  * 	This product includes software developed by the University of
167c478bd9Sstevel@tonic-gate  * 	California, Berkeley and its contributors.
177c478bd9Sstevel@tonic-gate  * 4. Neither the name of the University nor the names of its contributors
187c478bd9Sstevel@tonic-gate  *    may be used to endorse or promote products derived from this software
197c478bd9Sstevel@tonic-gate  *    without specific prior written permission.
207c478bd9Sstevel@tonic-gate  *
217c478bd9Sstevel@tonic-gate  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
227c478bd9Sstevel@tonic-gate  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
237c478bd9Sstevel@tonic-gate  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
247c478bd9Sstevel@tonic-gate  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
257c478bd9Sstevel@tonic-gate  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
267c478bd9Sstevel@tonic-gate  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
277c478bd9Sstevel@tonic-gate  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
287c478bd9Sstevel@tonic-gate  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
297c478bd9Sstevel@tonic-gate  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
307c478bd9Sstevel@tonic-gate  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
317c478bd9Sstevel@tonic-gate  * SUCH DAMAGE.
327c478bd9Sstevel@tonic-gate  */
337c478bd9Sstevel@tonic-gate 
347c478bd9Sstevel@tonic-gate #include "port_before.h"
357c478bd9Sstevel@tonic-gate 
367c478bd9Sstevel@tonic-gate #include <sys/param.h>
377c478bd9Sstevel@tonic-gate #include <sys/types.h>
387c478bd9Sstevel@tonic-gate #include <sys/cdefs.h>
397c478bd9Sstevel@tonic-gate 
407c478bd9Sstevel@tonic-gate #include <string.h>
417c478bd9Sstevel@tonic-gate 
427c478bd9Sstevel@tonic-gate #include "port_after.h"
437c478bd9Sstevel@tonic-gate 
447c478bd9Sstevel@tonic-gate #ifndef NEED_STRCASECMP
457c478bd9Sstevel@tonic-gate int __strcasecmp_unneeded__;
467c478bd9Sstevel@tonic-gate #else
477c478bd9Sstevel@tonic-gate 
48*9525b14bSRao Shoaib /*%
497c478bd9Sstevel@tonic-gate  * This array is designed for mapping upper and lower case letter
507c478bd9Sstevel@tonic-gate  * together for a case independent comparison.  The mappings are
517c478bd9Sstevel@tonic-gate  * based upon ascii character sequences.
527c478bd9Sstevel@tonic-gate  */
537c478bd9Sstevel@tonic-gate static const u_char charmap[] = {
547c478bd9Sstevel@tonic-gate 	0000, 0001, 0002, 0003, 0004, 0005, 0006, 0007,
557c478bd9Sstevel@tonic-gate 	0010, 0011, 0012, 0013, 0014, 0015, 0016, 0017,
567c478bd9Sstevel@tonic-gate 	0020, 0021, 0022, 0023, 0024, 0025, 0026, 0027,
577c478bd9Sstevel@tonic-gate 	0030, 0031, 0032, 0033, 0034, 0035, 0036, 0037,
587c478bd9Sstevel@tonic-gate 	0040, 0041, 0042, 0043, 0044, 0045, 0046, 0047,
597c478bd9Sstevel@tonic-gate 	0050, 0051, 0052, 0053, 0054, 0055, 0056, 0057,
607c478bd9Sstevel@tonic-gate 	0060, 0061, 0062, 0063, 0064, 0065, 0066, 0067,
617c478bd9Sstevel@tonic-gate 	0070, 0071, 0072, 0073, 0074, 0075, 0076, 0077,
627c478bd9Sstevel@tonic-gate 	0100, 0141, 0142, 0143, 0144, 0145, 0146, 0147,
637c478bd9Sstevel@tonic-gate 	0150, 0151, 0152, 0153, 0154, 0155, 0156, 0157,
647c478bd9Sstevel@tonic-gate 	0160, 0161, 0162, 0163, 0164, 0165, 0166, 0167,
657c478bd9Sstevel@tonic-gate 	0170, 0171, 0172, 0133, 0134, 0135, 0136, 0137,
667c478bd9Sstevel@tonic-gate 	0140, 0141, 0142, 0143, 0144, 0145, 0146, 0147,
677c478bd9Sstevel@tonic-gate 	0150, 0151, 0152, 0153, 0154, 0155, 0156, 0157,
687c478bd9Sstevel@tonic-gate 	0160, 0161, 0162, 0163, 0164, 0165, 0166, 0167,
697c478bd9Sstevel@tonic-gate 	0170, 0171, 0172, 0173, 0174, 0175, 0176, 0177,
707c478bd9Sstevel@tonic-gate 	0200, 0201, 0202, 0203, 0204, 0205, 0206, 0207,
717c478bd9Sstevel@tonic-gate 	0210, 0211, 0212, 0213, 0214, 0215, 0216, 0217,
727c478bd9Sstevel@tonic-gate 	0220, 0221, 0222, 0223, 0224, 0225, 0226, 0227,
737c478bd9Sstevel@tonic-gate 	0230, 0231, 0232, 0233, 0234, 0235, 0236, 0237,
747c478bd9Sstevel@tonic-gate 	0240, 0241, 0242, 0243, 0244, 0245, 0246, 0247,
757c478bd9Sstevel@tonic-gate 	0250, 0251, 0252, 0253, 0254, 0255, 0256, 0257,
767c478bd9Sstevel@tonic-gate 	0260, 0261, 0262, 0263, 0264, 0265, 0266, 0267,
777c478bd9Sstevel@tonic-gate 	0270, 0271, 0272, 0273, 0274, 0275, 0276, 0277,
787c478bd9Sstevel@tonic-gate 	0300, 0301, 0302, 0303, 0304, 0305, 0306, 0307,
797c478bd9Sstevel@tonic-gate 	0310, 0311, 0312, 0313, 0314, 0315, 0316, 0317,
807c478bd9Sstevel@tonic-gate 	0320, 0321, 0322, 0323, 0324, 0325, 0326, 0327,
817c478bd9Sstevel@tonic-gate 	0330, 0331, 0332, 0333, 0334, 0335, 0336, 0337,
827c478bd9Sstevel@tonic-gate 	0340, 0341, 0342, 0343, 0344, 0345, 0346, 0347,
837c478bd9Sstevel@tonic-gate 	0350, 0351, 0352, 0353, 0354, 0355, 0356, 0357,
847c478bd9Sstevel@tonic-gate 	0360, 0361, 0362, 0363, 0364, 0365, 0366, 0367,
857c478bd9Sstevel@tonic-gate 	0370, 0371, 0372, 0373, 0374, 0375, 0376, 0377
867c478bd9Sstevel@tonic-gate };
877c478bd9Sstevel@tonic-gate 
887c478bd9Sstevel@tonic-gate int
strcasecmp(const char * s1,const char * s2)897c478bd9Sstevel@tonic-gate strcasecmp(const char *s1, const char *s2) {
907c478bd9Sstevel@tonic-gate 	const u_char *cm = charmap,
917c478bd9Sstevel@tonic-gate 		     *us1 = (const u_char *)s1,
927c478bd9Sstevel@tonic-gate 		     *us2 = (const u_char *)s2;
937c478bd9Sstevel@tonic-gate 
947c478bd9Sstevel@tonic-gate 	while (cm[*us1] == cm[*us2++])
957c478bd9Sstevel@tonic-gate 		if (*us1++ == '\0')
967c478bd9Sstevel@tonic-gate 			return (0);
977c478bd9Sstevel@tonic-gate 	return (cm[*us1] - cm[*--us2]);
987c478bd9Sstevel@tonic-gate }
997c478bd9Sstevel@tonic-gate 
1007c478bd9Sstevel@tonic-gate int
strncasecmp(const char * s1,const char * s2,size_t n)1017c478bd9Sstevel@tonic-gate strncasecmp(const char *s1, const char *s2, size_t n) {
1027c478bd9Sstevel@tonic-gate 	if (n != 0) {
1037c478bd9Sstevel@tonic-gate 		const u_char *cm = charmap,
1047c478bd9Sstevel@tonic-gate 			     *us1 = (const u_char *)s1,
1057c478bd9Sstevel@tonic-gate 			     *us2 = (const u_char *)s2;
1067c478bd9Sstevel@tonic-gate 
1077c478bd9Sstevel@tonic-gate 		do {
1087c478bd9Sstevel@tonic-gate 			if (cm[*us1] != cm[*us2++])
1097c478bd9Sstevel@tonic-gate 				return (cm[*us1] - cm[*--us2]);
1107c478bd9Sstevel@tonic-gate 			if (*us1++ == '\0')
1117c478bd9Sstevel@tonic-gate 				break;
1127c478bd9Sstevel@tonic-gate 		} while (--n != 0);
1137c478bd9Sstevel@tonic-gate 	}
1147c478bd9Sstevel@tonic-gate 	return (0);
1157c478bd9Sstevel@tonic-gate }
1167c478bd9Sstevel@tonic-gate 
1177c478bd9Sstevel@tonic-gate #endif /*NEED_STRCASECMP*/
118*9525b14bSRao Shoaib 
119*9525b14bSRao Shoaib /*! \file */
120