1 /* $NetBSD: cd9660_strings.c,v 1.4 2007/01/16 17:32:05 hubertf Exp $ */ 2 3 /*- 4 * SPDX-License-Identifier: BSD-2-Clause 5 * 6 * Copyright (c) 2005 Daniel Watt, Walter Deignan, Ryan Gabrys, Alan 7 * Perez-Rathke and Ram Vedam. All rights reserved. 8 * 9 * This code was written by Daniel Watt, Walter Deignan, Ryan Gabrys, 10 * Alan Perez-Rathke and Ram Vedam. 11 * 12 * Redistribution and use in source and binary forms, with or 13 * without modification, are permitted provided that the following 14 * conditions are met: 15 * 1. Redistributions of source code must retain the above copyright 16 * notice, this list of conditions and the following disclaimer. 17 * 2. Redistributions in binary form must reproduce the above 18 * copyright notice, this list of conditions and the following 19 * disclaimer in the documentation and/or other materials provided 20 * with the distribution. 21 * 22 * THIS SOFTWARE IS PROVIDED BY DANIEL WATT, WALTER DEIGNAN, RYAN 23 * GABRYS, ALAN PEREZ-RATHKE AND RAM VEDAM ``AS IS'' AND ANY EXPRESS OR 24 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 25 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 26 * DISCLAIMED. IN NO EVENT SHALL DANIEL WATT, WALTER DEIGNAN, RYAN 27 * GABRYS, ALAN PEREZ-RATHKE AND RAM VEDAM BE LIABLE FOR ANY DIRECT, INDIRECT, 28 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 29 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF 30 * USE,DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 31 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 32 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY 34 * OF SUCH DAMAGE. 35 */ 36 37 #include <sys/mount.h> 38 39 #include <sys/cdefs.h> 40 #include <sys/param.h> 41 #include <ctype.h> 42 43 #include "makefs.h" 44 #include "cd9660.h" 45 46 47 void 48 cd9660_uppercase_characters(char *str, size_t len) 49 { 50 size_t p; 51 52 for (p = 0; p < len; p++) { 53 if (islower((unsigned char)str[p]) ) 54 str[p] -= 32; 55 } 56 } 57 58 static inline int 59 cd9660_is_d_char(char c) 60 { 61 return (isupper((unsigned char)c) 62 || c == '_' 63 || (c >= '0' && c <= '9')); 64 } 65 66 static inline int 67 cd9660_is_a_char(char c) 68 { 69 return (isupper((unsigned char)c) 70 || c == '_' 71 || (c >= '%' && c <= '?') 72 || (c >= ' ' && c <= '\"')); 73 } 74 75 /* 76 * Test a string to see if it is composed of valid a characters 77 * @param const char* The string to test 78 * @returns int 1 if valid, 2 if valid if characters are converted to 79 * upper case, 0 otherwise 80 */ 81 int 82 cd9660_valid_a_chars(const char *str) 83 { 84 const char *c = str; 85 int upperFound = 0; 86 87 while ((*c) != '\0') { 88 if (!(cd9660_is_a_char(*c))) { 89 if (islower((unsigned char)*c) ) 90 upperFound = 1; 91 else 92 return 0; 93 } 94 c++; 95 } 96 return upperFound + 1; 97 } 98 99 /* 100 * Test a string to see if it is composed of valid d characters 101 * @param const char* The string to test 102 * @returns int 1 if valid, 2 if valid if characters are converted to 103 * upper case, 0 otherwise 104 */ 105 int 106 cd9660_valid_d_chars(const char *str) 107 { 108 const char *c=str; 109 int upperFound = 0; 110 111 while ((*c) != '\0') { 112 if (!(cd9660_is_d_char(*c))) { 113 if (islower((unsigned char)*c) ) 114 upperFound = 1; 115 else 116 return 0; 117 } 118 c++; 119 } 120 return upperFound + 1; 121 } 122