1 /* $FreeBSD$ */ 2 /* $NetBSD: citrus_bcs.c,v 1.5 2005/05/14 17:55:42 tshiozak Exp $ */ 3 4 /*- 5 * SPDX-License-Identifier: BSD-2-Clause 6 * 7 * Copyright (c)2003 Citrus Project, 8 * All rights reserved. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 */ 31 32 #include <sys/cdefs.h> 33 34 #include <assert.h> 35 #include <stdlib.h> 36 37 #include "citrus_namespace.h" 38 #include "citrus_bcs.h" 39 40 /* 41 * case insensitive comparison between two C strings. 42 */ 43 int 44 _citrus_bcs_strcasecmp(const char * __restrict str1, 45 const char * __restrict str2) 46 { 47 int c1, c2; 48 49 c1 = c2 = 1; 50 51 while (c1 && c2 && c1 == c2) { 52 c1 = _bcs_toupper(*str1++); 53 c2 = _bcs_toupper(*str2++); 54 } 55 56 return ((c1 == c2) ? 0 : ((c1 > c2) ? 1 : -1)); 57 } 58 59 /* 60 * case insensitive comparison between two C strings with limitation of length. 61 */ 62 int 63 _citrus_bcs_strncasecmp(const char * __restrict str1, 64 const char * __restrict str2, size_t sz) 65 { 66 int c1, c2; 67 68 c1 = c2 = 1; 69 70 while (c1 && c2 && c1 == c2 && sz != 0) { 71 c1 = _bcs_toupper(*str1++); 72 c2 = _bcs_toupper(*str2++); 73 sz--; 74 } 75 76 return ((c1 == c2) ? 0 : ((c1 > c2) ? 1 : -1)); 77 } 78 79 /* 80 * skip white space characters. 81 */ 82 const char * 83 _citrus_bcs_skip_ws(const char *p) 84 { 85 86 while (*p && _bcs_isspace(*p)) 87 p++; 88 89 return (p); 90 } 91 92 /* 93 * skip non white space characters. 94 */ 95 const char * 96 _citrus_bcs_skip_nonws(const char *p) 97 { 98 99 while (*p && !_bcs_isspace(*p)) 100 p++; 101 102 return (p); 103 } 104 105 /* 106 * skip white space characters with limitation of length. 107 */ 108 const char * 109 _citrus_bcs_skip_ws_len(const char * __restrict p, size_t * __restrict len) 110 { 111 112 while (*len > 0 && *p && _bcs_isspace(*p)) { 113 p++; 114 (*len)--; 115 } 116 117 return (p); 118 } 119 120 /* 121 * skip non white space characters with limitation of length. 122 */ 123 const char * 124 _citrus_bcs_skip_nonws_len(const char * __restrict p, size_t * __restrict len) 125 { 126 127 while (*len > 0 && *p && !_bcs_isspace(*p)) { 128 p++; 129 (*len)--; 130 } 131 132 return (p); 133 } 134 135 /* 136 * truncate trailing white space characters. 137 */ 138 void 139 _citrus_bcs_trunc_rws_len(const char * __restrict p, size_t * __restrict len) 140 { 141 142 while (*len > 0 && _bcs_isspace(p[*len - 1])) 143 (*len)--; 144 } 145 146 /* 147 * destructive transliterate to lowercase. 148 */ 149 void 150 _citrus_bcs_convert_to_lower(char *s) 151 { 152 153 while (*s) { 154 *s = _bcs_tolower(*s); 155 s++; 156 } 157 } 158 159 /* 160 * destructive transliterate to uppercase. 161 */ 162 void 163 _citrus_bcs_convert_to_upper(char *s) 164 { 165 166 while (*s) { 167 *s = _bcs_toupper(*s); 168 s++; 169 } 170 } 171