1*0Sstevel@tonic-gate /* 2*0Sstevel@tonic-gate * Copyright (c) 1997-2000 by Sun Microsystems, Inc. 3*0Sstevel@tonic-gate * All rights reserved. 4*0Sstevel@tonic-gate */ 5*0Sstevel@tonic-gate 6*0Sstevel@tonic-gate #if defined(LIBC_SCCS) && !defined(lint) 7*0Sstevel@tonic-gate static const char sccsid[] = "@(#)strcasecmp.c 8.1 (Berkeley) 6/4/93"; 8*0Sstevel@tonic-gate static const char rcsid[] = "$Id: strcasecmp.c,v 8.5 1999/10/13 16:39:21 vixie Exp $"; 9*0Sstevel@tonic-gate #endif /* LIBC_SCCS and not lint */ 10*0Sstevel@tonic-gate 11*0Sstevel@tonic-gate /* 12*0Sstevel@tonic-gate * Copyright (c) 1987, 1993 13*0Sstevel@tonic-gate * The Regents of the University of California. All rights reserved. 14*0Sstevel@tonic-gate * 15*0Sstevel@tonic-gate * Redistribution and use in source and binary forms, with or without 16*0Sstevel@tonic-gate * modification, are permitted provided that the following conditions 17*0Sstevel@tonic-gate * are met: 18*0Sstevel@tonic-gate * 1. Redistributions of source code must retain the above copyright 19*0Sstevel@tonic-gate * notice, this list of conditions and the following disclaimer. 20*0Sstevel@tonic-gate * 2. Redistributions in binary form must reproduce the above copyright 21*0Sstevel@tonic-gate * notice, this list of conditions and the following disclaimer in the 22*0Sstevel@tonic-gate * documentation and/or other materials provided with the distribution. 23*0Sstevel@tonic-gate * 3. All advertising materials mentioning features or use of this software 24*0Sstevel@tonic-gate * must display the following acknowledgement: 25*0Sstevel@tonic-gate * This product includes software developed by the University of 26*0Sstevel@tonic-gate * California, Berkeley and its contributors. 27*0Sstevel@tonic-gate * 4. Neither the name of the University nor the names of its contributors 28*0Sstevel@tonic-gate * may be used to endorse or promote products derived from this software 29*0Sstevel@tonic-gate * without specific prior written permission. 30*0Sstevel@tonic-gate * 31*0Sstevel@tonic-gate * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 32*0Sstevel@tonic-gate * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 33*0Sstevel@tonic-gate * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 34*0Sstevel@tonic-gate * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 35*0Sstevel@tonic-gate * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 36*0Sstevel@tonic-gate * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 37*0Sstevel@tonic-gate * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 38*0Sstevel@tonic-gate * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 39*0Sstevel@tonic-gate * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 40*0Sstevel@tonic-gate * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 41*0Sstevel@tonic-gate * SUCH DAMAGE. 42*0Sstevel@tonic-gate */ 43*0Sstevel@tonic-gate 44*0Sstevel@tonic-gate 45*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 46*0Sstevel@tonic-gate 47*0Sstevel@tonic-gate #include "port_before.h" 48*0Sstevel@tonic-gate 49*0Sstevel@tonic-gate #include <sys/param.h> 50*0Sstevel@tonic-gate #include <sys/types.h> 51*0Sstevel@tonic-gate #include <sys/cdefs.h> 52*0Sstevel@tonic-gate 53*0Sstevel@tonic-gate #include <string.h> 54*0Sstevel@tonic-gate 55*0Sstevel@tonic-gate #include "port_after.h" 56*0Sstevel@tonic-gate 57*0Sstevel@tonic-gate #ifndef NEED_STRCASECMP 58*0Sstevel@tonic-gate int __strcasecmp_unneeded__; 59*0Sstevel@tonic-gate #else 60*0Sstevel@tonic-gate 61*0Sstevel@tonic-gate /* 62*0Sstevel@tonic-gate * This array is designed for mapping upper and lower case letter 63*0Sstevel@tonic-gate * together for a case independent comparison. The mappings are 64*0Sstevel@tonic-gate * based upon ascii character sequences. 65*0Sstevel@tonic-gate */ 66*0Sstevel@tonic-gate static const u_char charmap[] = { 67*0Sstevel@tonic-gate 0000, 0001, 0002, 0003, 0004, 0005, 0006, 0007, 68*0Sstevel@tonic-gate 0010, 0011, 0012, 0013, 0014, 0015, 0016, 0017, 69*0Sstevel@tonic-gate 0020, 0021, 0022, 0023, 0024, 0025, 0026, 0027, 70*0Sstevel@tonic-gate 0030, 0031, 0032, 0033, 0034, 0035, 0036, 0037, 71*0Sstevel@tonic-gate 0040, 0041, 0042, 0043, 0044, 0045, 0046, 0047, 72*0Sstevel@tonic-gate 0050, 0051, 0052, 0053, 0054, 0055, 0056, 0057, 73*0Sstevel@tonic-gate 0060, 0061, 0062, 0063, 0064, 0065, 0066, 0067, 74*0Sstevel@tonic-gate 0070, 0071, 0072, 0073, 0074, 0075, 0076, 0077, 75*0Sstevel@tonic-gate 0100, 0141, 0142, 0143, 0144, 0145, 0146, 0147, 76*0Sstevel@tonic-gate 0150, 0151, 0152, 0153, 0154, 0155, 0156, 0157, 77*0Sstevel@tonic-gate 0160, 0161, 0162, 0163, 0164, 0165, 0166, 0167, 78*0Sstevel@tonic-gate 0170, 0171, 0172, 0133, 0134, 0135, 0136, 0137, 79*0Sstevel@tonic-gate 0140, 0141, 0142, 0143, 0144, 0145, 0146, 0147, 80*0Sstevel@tonic-gate 0150, 0151, 0152, 0153, 0154, 0155, 0156, 0157, 81*0Sstevel@tonic-gate 0160, 0161, 0162, 0163, 0164, 0165, 0166, 0167, 82*0Sstevel@tonic-gate 0170, 0171, 0172, 0173, 0174, 0175, 0176, 0177, 83*0Sstevel@tonic-gate 0200, 0201, 0202, 0203, 0204, 0205, 0206, 0207, 84*0Sstevel@tonic-gate 0210, 0211, 0212, 0213, 0214, 0215, 0216, 0217, 85*0Sstevel@tonic-gate 0220, 0221, 0222, 0223, 0224, 0225, 0226, 0227, 86*0Sstevel@tonic-gate 0230, 0231, 0232, 0233, 0234, 0235, 0236, 0237, 87*0Sstevel@tonic-gate 0240, 0241, 0242, 0243, 0244, 0245, 0246, 0247, 88*0Sstevel@tonic-gate 0250, 0251, 0252, 0253, 0254, 0255, 0256, 0257, 89*0Sstevel@tonic-gate 0260, 0261, 0262, 0263, 0264, 0265, 0266, 0267, 90*0Sstevel@tonic-gate 0270, 0271, 0272, 0273, 0274, 0275, 0276, 0277, 91*0Sstevel@tonic-gate 0300, 0301, 0302, 0303, 0304, 0305, 0306, 0307, 92*0Sstevel@tonic-gate 0310, 0311, 0312, 0313, 0314, 0315, 0316, 0317, 93*0Sstevel@tonic-gate 0320, 0321, 0322, 0323, 0324, 0325, 0326, 0327, 94*0Sstevel@tonic-gate 0330, 0331, 0332, 0333, 0334, 0335, 0336, 0337, 95*0Sstevel@tonic-gate 0340, 0341, 0342, 0343, 0344, 0345, 0346, 0347, 96*0Sstevel@tonic-gate 0350, 0351, 0352, 0353, 0354, 0355, 0356, 0357, 97*0Sstevel@tonic-gate 0360, 0361, 0362, 0363, 0364, 0365, 0366, 0367, 98*0Sstevel@tonic-gate 0370, 0371, 0372, 0373, 0374, 0375, 0376, 0377 99*0Sstevel@tonic-gate }; 100*0Sstevel@tonic-gate 101*0Sstevel@tonic-gate int 102*0Sstevel@tonic-gate strcasecmp(const char *s1, const char *s2) { 103*0Sstevel@tonic-gate const u_char *cm = charmap, 104*0Sstevel@tonic-gate *us1 = (const u_char *)s1, 105*0Sstevel@tonic-gate *us2 = (const u_char *)s2; 106*0Sstevel@tonic-gate 107*0Sstevel@tonic-gate while (cm[*us1] == cm[*us2++]) 108*0Sstevel@tonic-gate if (*us1++ == '\0') 109*0Sstevel@tonic-gate return (0); 110*0Sstevel@tonic-gate return (cm[*us1] - cm[*--us2]); 111*0Sstevel@tonic-gate } 112*0Sstevel@tonic-gate 113*0Sstevel@tonic-gate int 114*0Sstevel@tonic-gate strncasecmp(const char *s1, const char *s2, size_t n) { 115*0Sstevel@tonic-gate if (n != 0) { 116*0Sstevel@tonic-gate const u_char *cm = charmap, 117*0Sstevel@tonic-gate *us1 = (const u_char *)s1, 118*0Sstevel@tonic-gate *us2 = (const u_char *)s2; 119*0Sstevel@tonic-gate 120*0Sstevel@tonic-gate do { 121*0Sstevel@tonic-gate if (cm[*us1] != cm[*us2++]) 122*0Sstevel@tonic-gate return (cm[*us1] - cm[*--us2]); 123*0Sstevel@tonic-gate if (*us1++ == '\0') 124*0Sstevel@tonic-gate break; 125*0Sstevel@tonic-gate } while (--n != 0); 126*0Sstevel@tonic-gate } 127*0Sstevel@tonic-gate return (0); 128*0Sstevel@tonic-gate } 129*0Sstevel@tonic-gate 130*0Sstevel@tonic-gate #endif /*NEED_STRCASECMP*/ 131