1 /* $NetBSD: citrus_bcs.c,v 1.5 2005/05/14 17:55:42 tshiozak Exp $ */ 2 3 /*- 4 * Copyright (c)2003 Citrus Project, 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 */ 28 29 #if HAVE_NBTOOL_CONFIG_H 30 #include "nbtool_config.h" 31 #endif 32 33 #include <sys/cdefs.h> 34 #if defined(LIBC_SCCS) && !defined(lint) 35 __RCSID("$NetBSD: citrus_bcs.c,v 1.5 2005/05/14 17:55:42 tshiozak Exp $"); 36 #endif /* LIBC_SCCS and not lint */ 37 38 #ifndef HOSTPROG 39 #include "namespace.h" 40 #endif 41 #include <assert.h> 42 #include <stdlib.h> 43 44 #include "citrus_namespace.h" 45 #include "citrus_bcs.h" 46 47 /* 48 * case insensitive comparison between two C strings. 49 */ 50 int 51 _citrus_bcs_strcasecmp(const char * __restrict str1, 52 const char * __restrict str2) 53 { 54 int c1 = 1, c2 = 1; 55 56 while (c1 && c2 && c1 == c2) { 57 c1 = _bcs_toupper(*str1++); 58 c2 = _bcs_toupper(*str2++); 59 } 60 61 return ((c1 == c2) ? 0 : ((c1 > c2) ? 1 : -1)); 62 } 63 64 /* 65 * case insensitive comparison between two C strings with limitation of length. 66 */ 67 int 68 _citrus_bcs_strncasecmp(const char * __restrict str1, 69 const char * __restrict str2, size_t sz) 70 { 71 int c1 = 1, c2 = 1; 72 73 while (c1 && c2 && c1 == c2 && sz != 0) { 74 c1 = _bcs_toupper(*str1++); 75 c2 = _bcs_toupper(*str2++); 76 sz--; 77 } 78 79 return ((c1 == c2) ? 0 : ((c1 > c2) ? 1 : -1)); 80 } 81 82 /* 83 * skip white space characters. 84 */ 85 const char * 86 _citrus_bcs_skip_ws(const char *p) 87 { 88 89 while (*p && _bcs_isspace(*p)) 90 p++; 91 92 return (p); 93 } 94 95 /* 96 * skip non white space characters. 97 */ 98 const char * 99 _citrus_bcs_skip_nonws(const char *p) 100 { 101 102 while (*p && !_bcs_isspace(*p)) 103 p++; 104 105 return (p); 106 } 107 108 /* 109 * skip white space characters with limitation of length. 110 */ 111 const char * 112 _citrus_bcs_skip_ws_len(const char * __restrict p, size_t * __restrict len) 113 { 114 115 while (*p && *len > 0 && _bcs_isspace(*p)) { 116 p++; 117 (*len)--; 118 } 119 120 return (p); 121 } 122 123 /* 124 * skip non white space characters with limitation of length. 125 */ 126 const char * 127 _citrus_bcs_skip_nonws_len(const char * __restrict p, size_t * __restrict len) 128 { 129 130 while (*p && *len > 0 && !_bcs_isspace(*p)) { 131 p++; 132 (*len)--; 133 } 134 135 return (p); 136 } 137 138 /* 139 * truncate trailing white space characters. 140 */ 141 void 142 _citrus_bcs_trunc_rws_len(const char * __restrict p, size_t * __restrict len) 143 { 144 145 while (*len > 0 && _bcs_isspace(p[*len - 1])) 146 (*len)--; 147 } 148 149 /* 150 * destructive transliterate to lowercase. 151 */ 152 void 153 _citrus_bcs_convert_to_lower(char *s) 154 { 155 while (*s) { 156 *s = _bcs_tolower(*s); 157 s++; 158 } 159 } 160 161 /* 162 * destructive transliterate to uppercase. 163 */ 164 void 165 _citrus_bcs_convert_to_upper(char *s) 166 { 167 while (*s) { 168 *s = _bcs_toupper(*s); 169 s++; 170 } 171 } 172