#if defined(LIBC_SCCS) && !defined(lint)static const char sccsid[] = "@(#)strcasecmp.c	8.1 (Berkeley) 6/4/93";static const char rcsid[] = "$Id: strcasecmp.c,v 1.1 2001/03/29 06:30:35 marka Exp $";#endif /* LIBC_SCCS and not lint *//* * Copyright (c) 1987, 1993 *    The Regents of the University of California.  All rights reserved. *  * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright *    notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright *    notice, this list of conditions and the following disclaimer in the *    documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software *    must display the following acknowledgement: * 	This product includes software developed by the University of * 	California, Berkeley and its contributors. * 4. Neither the name of the University nor the names of its contributors *    may be used to endorse or promote products derived from this software *    without specific prior written permission. *  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */#include "port_before.h"#include <sys/param.h>#include <sys/types.h>#include <sys/cdefs.h>#include <string.h>#include "port_after.h"#ifndef NEED_STRCASECMPint __strcasecmp_unneeded__;#else/* * 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 const u_char charmap[] = {	0000, 0001, 0002, 0003, 0004, 0005, 0006, 0007,	0010, 0011, 0012, 0013, 0014, 0015, 0016, 0017,	0020, 0021, 0022, 0023, 0024, 0025, 0026, 0027,	0030, 0031, 0032, 0033, 0034, 0035, 0036, 0037,	0040, 0041, 0042, 0043, 0044, 0045, 0046, 0047,	0050, 0051, 0052, 0053, 0054, 0055, 0056, 0057,	0060, 0061, 0062, 0063, 0064, 0065, 0066, 0067,	0070, 0071, 0072, 0073, 0074, 0075, 0076, 0077,	0100, 0141, 0142, 0143, 0144, 0145, 0146, 0147,	0150, 0151, 0152, 0153, 0154, 0155, 0156, 0157,	0160, 0161, 0162, 0163, 0164, 0165, 0166, 0167,	0170, 0171, 0172, 0133, 0134, 0135, 0136, 0137,	0140, 0141, 0142, 0143, 0144, 0145, 0146, 0147,	0150, 0151, 0152, 0153, 0154, 0155, 0156, 0157,	0160, 0161, 0162, 0163, 0164, 0165, 0166, 0167,	0170, 0171, 0172, 0173, 0174, 0175, 0176, 0177,	0200, 0201, 0202, 0203, 0204, 0205, 0206, 0207,	0210, 0211, 0212, 0213, 0214, 0215, 0216, 0217,	0220, 0221, 0222, 0223, 0224, 0225, 0226, 0227,	0230, 0231, 0232, 0233, 0234, 0235, 0236, 0237,	0240, 0241, 0242, 0243, 0244, 0245, 0246, 0247,	0250, 0251, 0252, 0253, 0254, 0255, 0256, 0257,	0260, 0261, 0262, 0263, 0264, 0265, 0266, 0267,	0270, 0271, 0272, 0273, 0274, 0275, 0276, 0277,	0300, 0301, 0302, 0303, 0304, 0305, 0306, 0307,	0310, 0311, 0312, 0313, 0314, 0315, 0316, 0317,	0320, 0321, 0322, 0323, 0324, 0325, 0326, 0327,	0330, 0331, 0332, 0333, 0334, 0335, 0336, 0337,	0340, 0341, 0342, 0343, 0344, 0345, 0346, 0347,	0350, 0351, 0352, 0353, 0354, 0355, 0356, 0357,	0360, 0361, 0362, 0363, 0364, 0365, 0366, 0367,	0370, 0371, 0372, 0373, 0374, 0375, 0376, 0377};intstrcasecmp(const char *s1, const char *s2) {	const u_char *cm = charmap,		     *us1 = (const u_char *)s1,		     *us2 = (const u_char *)s2;	while (cm[*us1] == cm[*us2++])		if (*us1++ == '\0')			return (0);	return (cm[*us1] - cm[*--us2]);}intstrncasecmp(const char *s1, const char *s2, size_t n) {	if (n != 0) {		const u_char *cm = charmap,			     *us1 = (const u_char *)s1,			     *us2 = (const u_char *)s2;		do {			if (cm[*us1] != cm[*us2++])				return (cm[*us1] - cm[*--us2]);			if (*us1++ == '\0')				break;		} while (--n != 0);	}	return (0);}#endif /*NEED_STRCASECMP*/