1 /* $OpenBSD: cd9660_strings.c,v 1.3 2016/10/16 20:26:56 natano Exp $ */
2 /* $NetBSD: cd9660_strings.c,v 1.6 2015/12/24 15:52:37 christos Exp $ */
3
4 /*
5 * Copyright (c) 2005 Daniel Watt, Walter Deignan, Ryan Gabrys, Alan
6 * Perez-Rathke and Ram Vedam. All rights reserved.
7 *
8 * This code was written by Daniel Watt, Walter Deignan, Ryan Gabrys,
9 * Alan Perez-Rathke and Ram Vedam.
10 *
11 * Redistribution and use in source and binary forms, with or
12 * without modification, are permitted provided that the following
13 * conditions are met:
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above
17 * copyright notice, this list of conditions and the following
18 * disclaimer in the documentation and/or other materials provided
19 * with the distribution.
20 *
21 * THIS SOFTWARE IS PROVIDED BY DANIEL WATT, WALTER DEIGNAN, RYAN
22 * GABRYS, ALAN PEREZ-RATHKE AND RAM VEDAM ``AS IS'' AND ANY EXPRESS OR
23 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
24 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
25 * DISCLAIMED. IN NO EVENT SHALL DANIEL WATT, WALTER DEIGNAN, RYAN
26 * GABRYS, ALAN PEREZ-RATHKE AND RAM VEDAM BE LIABLE FOR ANY DIRECT, INDIRECT,
27 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
28 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
29 * USE,DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
30 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
31 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
33 * OF SUCH DAMAGE.
34 */
35
36 #include <ctype.h>
37
38 #include "makefs.h"
39
40
41 void
cd9660_uppercase_characters(char * str,size_t len)42 cd9660_uppercase_characters(char *str, size_t len)
43 {
44 size_t p;
45
46 for (p = 0; p < len; p++) {
47 if (islower((unsigned char)str[p]) )
48 str[p] -= 32;
49 }
50 }
51
52 static inline int
cd9660_is_d_char(char c)53 cd9660_is_d_char(char c)
54 {
55 return (isupper((unsigned char)c)
56 || c == '_'
57 || (c >= '0' && c <= '9'));
58 }
59
60 static inline int
cd9660_is_a_char(char c)61 cd9660_is_a_char(char c)
62 {
63 return (isupper((unsigned char)c)
64 || c == '_'
65 || (c >= '%' && c <= '?')
66 || (c >= ' ' && c <= '\"'));
67 }
68
69 /*
70 * Test a string to see if it is composed of valid a characters
71 * @param const char* The string to test
72 * @returns int 1 if valid, 2 if valid if characters are converted to
73 * upper case, 0 otherwise
74 */
75 int
cd9660_valid_a_chars(const char * str)76 cd9660_valid_a_chars(const char *str)
77 {
78 const char *c = str;
79 int upperFound = 0;
80
81 while ((*c) != '\0') {
82 if (!(cd9660_is_a_char(*c))) {
83 if (islower((unsigned char)*c) )
84 upperFound = 1;
85 else
86 return 0;
87 }
88 c++;
89 }
90 return upperFound + 1;
91 }
92
93 /*
94 * Test a string to see if it is composed of valid d characters
95 * @param const char* The string to test
96 * @returns int 1 if valid, 2 if valid if characters are converted to
97 * upper case, 0 otherwise
98 */
99 int
cd9660_valid_d_chars(const char * str)100 cd9660_valid_d_chars(const char *str)
101 {
102 const char *c=str;
103 int upperFound = 0;
104
105 while ((*c) != '\0') {
106 if (!(cd9660_is_d_char(*c))) {
107 if (islower((unsigned char)*c) )
108 upperFound = 1;
109 else
110 return 0;
111 }
112 c++;
113 }
114 return upperFound + 1;
115 }
116