cd9660_strings.c revision 1.2 
1/*	$NetBSD: cd9660_strings.c,v 1.2 2005/10/30 03:10:28 dyoung Exp $	*/
2
3/*
4 * Copyright (c) 2005 Daniel Watt, Walter Deignan, Ryan Gabrys, Alan
5 * Perez-Rathke and Ram Vedam.  All rights reserved.
6 *
7 * This code was written by Daniel Watt, Walter Deignan, Ryan Gabrys,
8 * Alan Perez-Rathke and Ram Vedam.
9 *
10 * Redistribution and use in source and binary forms, with or
11 * without modification, are permitted provided that the following
12 * conditions are met:
13 * 1. Redistributions of source code must retain the above copyright
14 *    notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above
16 *    copyright notice, this list of conditions and the following
17 *    disclaimer in the documentation and/or other materials provided
18 *    with the distribution.
19 *
20 * THIS SOFTWARE IS PROVIDED BY DANIEL WATT, WALTER DEIGNAN, RYAN
21 * GABRYS, ALAN PEREZ-RATHKE AND RAM VEDAM ``AS IS'' AND ANY EXPRESS OR
22 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
23 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
24 * DISCLAIMED.  IN NO EVENT SHALL DANIEL WATT, WALTER DEIGNAN, RYAN
25 * GABRYS, ALAN PEREZ-RATHKE AND RAM VEDAM BE LIABLE FOR ANY DIRECT, INDIRECT,
26 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
27 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
28 * USE,DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
29 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
30 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
32 * OF SUCH DAMAGE.
33 */
34
35#if HAVE_NBTOOL_CONFIG_H
36#include "nbtool_config.h"
37#endif
38
39#include <sys/cdefs.h>
40#include <sys/param.h>
41#include <ctype.h>
42
43#if !HAVE_NBTOOL_CONFIG_H
44#include <sys/mount.h>
45#endif
46
47#include "makefs.h"
48#include "cd9660.h"
49
50#include <sys/cdefs.h>
51#if defined(__RCSID) && !defined(__lint)
52__RCSID("$NetBSD: cd9660_strings.c,v 1.2 2005/10/30 03:10:28 dyoung Exp $");
53#endif  /* !__lint */
54
55
56void
57cd9660_uppercase_characters(char *str, int len)
58{
59	int p;
60
61	for (p = 0; p < len; p++) {
62		if (islower((unsigned char)str[p]) )
63			str[p] -= 32;
64	}
65}
66
67static __inline int
68cd9660_is_a_char(char c)
69{
70	return (isupper((unsigned char)c)
71		|| c == '_'
72		|| (c >= '0' && c <= '?'));
73}
74
75static __inline int
76cd9660_is_d_char(char c)
77{
78	return (isupper((unsigned char)c)
79			|| c == '_'
80			|| (c >= '%' && c <= '9')
81			|| (c >= ' ' && c <= '\"'));
82}
83
84/*
85 * Test a string to see if it is composed of valid a characters
86 * @param const char* The string to test
87 * @returns int 1 if valid, 2 if valid if characters are converted to
88 *              upper case, 0 otherwise
89 */
90int
91cd9660_valid_a_chars(const char *str)
92{
93	const char *c = str;
94	int upperFound = 0;
95
96	while ((*c) != '\0') {
97		if (!(cd9660_is_a_char(*c))) {
98			if (islower((unsigned char)*c) )
99				upperFound = 1;
100			else
101				return 0;
102		}
103		c++;
104	}
105	return upperFound + 1;
106}
107
108/*
109 * Test a string to see if it is composed of valid d characters
110 * @param const char* The string to test
111 * @returns int 1 if valid, 2 if valid if characters are converted to
112 *                upper case, 0 otherwise
113 */
114int
115cd9660_valid_d_chars(const char *str)
116{
117	const char *c=str;
118	int upperFound = 0;
119
120	while ((*c) != '\0') {
121		if (!(cd9660_is_d_char(*c))) {
122			if (islower((unsigned char)*c) )
123				upperFound = 1;
124			else
125				return 0;
126		}
127		c++;
128	}
129	return upperFound + 1;
130}
131