1 /*-
2 * Copyright (c) 2011 Tim Kientzle
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS OR
15 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
16 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
17 * IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT, INDIRECT,
18 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
19 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
20 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
21 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
23 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26 #include "archive_platform.h"
27
28 #include "archive_read_private.h"
29 #include "archive_options_private.h"
30
31 static int archive_set_format_option(struct archive *a,
32 const char *m, const char *o, const char *v);
33 static int archive_set_filter_option(struct archive *a,
34 const char *m, const char *o, const char *v);
35 static int archive_set_option(struct archive *a,
36 const char *m, const char *o, const char *v);
37
38 int
archive_read_set_format_option(struct archive * a,const char * m,const char * o,const char * v)39 archive_read_set_format_option(struct archive *a, const char *m, const char *o,
40 const char *v)
41 {
42 return _archive_set_option(a, m, o, v,
43 ARCHIVE_READ_MAGIC, "archive_read_set_format_option",
44 archive_set_format_option);
45 }
46
47 int
archive_read_set_filter_option(struct archive * a,const char * m,const char * o,const char * v)48 archive_read_set_filter_option(struct archive *a, const char *m, const char *o,
49 const char *v)
50 {
51 return _archive_set_option(a, m, o, v,
52 ARCHIVE_READ_MAGIC, "archive_read_set_filter_option",
53 archive_set_filter_option);
54 }
55
56 int
archive_read_set_option(struct archive * a,const char * m,const char * o,const char * v)57 archive_read_set_option(struct archive *a, const char *m, const char *o,
58 const char *v)
59 {
60 return _archive_set_option(a, m, o, v,
61 ARCHIVE_READ_MAGIC, "archive_read_set_option",
62 archive_set_option);
63 }
64
65 int
archive_read_set_options(struct archive * a,const char * options)66 archive_read_set_options(struct archive *a, const char *options)
67 {
68 return _archive_set_options(a, options,
69 ARCHIVE_READ_MAGIC, "archive_read_set_options",
70 archive_set_option);
71 }
72
73 static int
archive_set_format_option(struct archive * _a,const char * m,const char * o,const char * v)74 archive_set_format_option(struct archive *_a, const char *m, const char *o,
75 const char *v)
76 {
77 struct archive_read *a = (struct archive_read *)_a;
78 size_t i;
79 int r, rv = ARCHIVE_WARN, matched_modules = 0;
80
81 for (i = 0; i < sizeof(a->formats)/sizeof(a->formats[0]); i++) {
82 struct archive_format_descriptor *format = &a->formats[i];
83
84 if (format->options == NULL || format->name == NULL)
85 /* This format does not support option. */
86 continue;
87 if (m != NULL) {
88 if (strcmp(format->name, m) != 0)
89 continue;
90 ++matched_modules;
91 }
92
93 a->format = format;
94 r = format->options(a, o, v);
95 a->format = NULL;
96
97 if (r == ARCHIVE_FATAL)
98 return (ARCHIVE_FATAL);
99
100 if (r == ARCHIVE_OK)
101 rv = ARCHIVE_OK;
102 }
103 /* If the format name didn't match, return a special code for
104 * _archive_set_option[s]. */
105 if (m != NULL && matched_modules == 0)
106 return ARCHIVE_WARN - 1;
107 return (rv);
108 }
109
110 static int
archive_set_filter_option(struct archive * _a,const char * m,const char * o,const char * v)111 archive_set_filter_option(struct archive *_a, const char *m, const char *o,
112 const char *v)
113 {
114 (void)_a; /* UNUSED */
115 (void)o; /* UNUSED */
116 (void)v; /* UNUSED */
117
118 /* If the filter name didn't match, return a special code for
119 * _archive_set_option[s]. */
120 if (m != NULL)
121 return ARCHIVE_WARN - 1;
122 return ARCHIVE_WARN;
123 }
124
125 static int
archive_set_option(struct archive * a,const char * m,const char * o,const char * v)126 archive_set_option(struct archive *a, const char *m, const char *o,
127 const char *v)
128 {
129 return _archive_set_either_option(a, m, o, v,
130 archive_set_format_option,
131 archive_set_filter_option);
132 }
133