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-NetBSD 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 __FBSDID("$FreeBSD$"); 41 #include <sys/param.h> 42 #include <ctype.h> 43 44 #include "makefs.h" 45 #include "cd9660.h" 46 47 48 void 49 cd9660_uppercase_characters(char *str, int len) 50 { 51 int p; 52 53 for (p = 0; p < len; p++) { 54 if (islower((unsigned char)str[p]) ) 55 str[p] -= 32; 56 } 57 } 58 59 static inline int 60 cd9660_is_d_char(char c) 61 { 62 return (isupper((unsigned char)c) 63 || c == '_' 64 || (c >= '0' && c <= '9')); 65 } 66 67 static inline int 68 cd9660_is_a_char(char c) 69 { 70 return (isupper((unsigned char)c) 71 || c == '_' 72 || (c >= '%' && c <= '?') 73 || (c >= ' ' && c <= '\"')); 74 } 75 76 /* 77 * Test a string to see if it is composed of valid a characters 78 * @param const char* The string to test 79 * @returns int 1 if valid, 2 if valid if characters are converted to 80 * upper case, 0 otherwise 81 */ 82 int 83 cd9660_valid_a_chars(const char *str) 84 { 85 const char *c = str; 86 int upperFound = 0; 87 88 while ((*c) != '\0') { 89 if (!(cd9660_is_a_char(*c))) { 90 if (islower((unsigned char)*c) ) 91 upperFound = 1; 92 else 93 return 0; 94 } 95 c++; 96 } 97 return upperFound + 1; 98 } 99 100 /* 101 * Test a string to see if it is composed of valid d characters 102 * @param const char* The string to test 103 * @returns int 1 if valid, 2 if valid if characters are converted to 104 * upper case, 0 otherwise 105 */ 106 int 107 cd9660_valid_d_chars(const char *str) 108 { 109 const char *c=str; 110 int upperFound = 0; 111 112 while ((*c) != '\0') { 113 if (!(cd9660_is_d_char(*c))) { 114 if (islower((unsigned char)*c) ) 115 upperFound = 1; 116 else 117 return 0; 118 } 119 c++; 120 } 121 return upperFound + 1; 122 } 123