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 * $FreeBSD: head/usr.sbin/makefs/cd9660/cd9660_strings.c 326276 2017-11-27 15:37:16Z pfg $
37 */
38
39 #include <sys/mount.h>
40
41 #include <sys/param.h>
42 #include <ctype.h>
43
44 #include "makefs.h"
45 #include "cd9660.h"
46
47
48 void
cd9660_uppercase_characters(char * str,int len)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
cd9660_is_d_char(char c)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
cd9660_is_a_char(char c)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
cd9660_valid_a_chars(const char * str)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
cd9660_valid_d_chars(const char * str)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