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 */ 43int 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 */ 62int 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 */ 82const 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 */ 95const 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 */ 108const char * 109_citrus_bcs_skip_ws_len(const char * __restrict p, size_t * __restrict len) 110{ 111 112 while (*p && *len > 0 && _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 */ 123const char * 124_citrus_bcs_skip_nonws_len(const char * __restrict p, size_t * __restrict len) 125{ 126 127 while (*p && *len > 0 && !_bcs_isspace(*p)) { 128 p++; 129 (*len)--; 130 } 131 132 return (p); 133} 134 135/* 136 * truncate trailing white space characters. 137 */ 138void 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 */ 149void 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 */ 162void 163_citrus_bcs_convert_to_upper(char *s) 164{ 165 166 while (*s) { 167 *s = _bcs_toupper(*s); 168 s++; 169 } 170} 171