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