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/* $OpenBSD: cd9660_strings.c,v 1.3 2016/10/16 20:26:56 natano Exp $ */ |
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/* $NetBSD: cd9660_strings.c,v 1.6 2015/12/24 15:52:37 christos Exp $ */ |
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/* |
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* Copyright (c) 2005 Daniel Watt, Walter Deignan, Ryan Gabrys, Alan |
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* Perez-Rathke and Ram Vedam. All rights reserved. |
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* |
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* This code was written by Daniel Watt, Walter Deignan, Ryan Gabrys, |
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* Alan Perez-Rathke and Ram Vedam. |
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* |
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* Redistribution and use in source and binary forms, with or |
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* without modification, are permitted provided that the following |
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* conditions are met: |
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* 1. Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* 2. Redistributions in binary form must reproduce the above |
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* copyright notice, this list of conditions and the following |
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* disclaimer in the documentation and/or other materials provided |
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* with the distribution. |
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* |
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* THIS SOFTWARE IS PROVIDED BY DANIEL WATT, WALTER DEIGNAN, RYAN |
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* GABRYS, ALAN PEREZ-RATHKE AND RAM VEDAM ``AS IS'' AND ANY EXPRESS OR |
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
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* DISCLAIMED. IN NO EVENT SHALL DANIEL WATT, WALTER DEIGNAN, RYAN |
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* GABRYS, ALAN PEREZ-RATHKE AND RAM VEDAM BE LIABLE FOR ANY DIRECT, INDIRECT, |
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF |
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* USE,DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY |
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* OF SUCH DAMAGE. |
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*/ |
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#include <ctype.h> |
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#include "makefs.h" |
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void |
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cd9660_uppercase_characters(char *str, size_t len) |
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{ |
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size_t p; |
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for (p = 0; p < len; p++) { |
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if (islower((unsigned char)str[p]) ) |
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str[p] -= 32; |
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} |
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} |
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static inline int |
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cd9660_is_d_char(char c) |
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{ |
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return (isupper((unsigned char)c) |
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|| c == '_' |
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|| (c >= '0' && c <= '9')); |
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} |
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static inline int |
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cd9660_is_a_char(char c) |
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{ |
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return (isupper((unsigned char)c) |
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|| c == '_' |
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|| (c >= '%' && c <= '?') |
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|| (c >= ' ' && c <= '\"')); |
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} |
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/* |
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* Test a string to see if it is composed of valid a characters |
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* @param const char* The string to test |
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* @returns int 1 if valid, 2 if valid if characters are converted to |
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* upper case, 0 otherwise |
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*/ |
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int |
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cd9660_valid_a_chars(const char *str) |
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{ |
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const char *c = str; |
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int upperFound = 0; |
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while ((*c) != '\0') { |
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if (!(cd9660_is_a_char(*c))) { |
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if (islower((unsigned char)*c) ) |
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upperFound = 1; |
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else |
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return 0; |
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} |
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c++; |
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} |
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return upperFound + 1; |
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} |
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/* |
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* Test a string to see if it is composed of valid d characters |
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* @param const char* The string to test |
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* @returns int 1 if valid, 2 if valid if characters are converted to |
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* upper case, 0 otherwise |
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*/ |
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int |
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cd9660_valid_d_chars(const char *str) |
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{ |
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const char *c=str; |
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int upperFound = 0; |
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while ((*c) != '\0') { |
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if (!(cd9660_is_d_char(*c))) { |
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if (islower((unsigned char)*c) ) |
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upperFound = 1; |
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else |
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return 0; |
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} |
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c++; |
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} |
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return upperFound + 1; |
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} |