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__FBSDID("$FreeBSD$");
28
29#include "archive_read_private.h"
30#include "archive_options_private.h"
31
32static int	archive_set_format_option(struct archive *a,
33		    const char *m, const char *o, const char *v);
34static int	archive_set_filter_option(struct archive *a,
35		    const char *m, const char *o, const char *v);
36static int	archive_set_option(struct archive *a,
37		    const char *m, const char *o, const char *v);
38
39int
40archive_read_set_format_option(struct archive *a, const char *m, const char *o,
41    const char *v)
42{
43	return _archive_set_option(a, m, o, v,
44	    ARCHIVE_READ_MAGIC, "archive_read_set_format_option",
45	    archive_set_format_option);
46}
47
48int
49archive_read_set_filter_option(struct archive *a, const char *m, const char *o,
50    const char *v)
51{
52	return _archive_set_option(a, m, o, v,
53	    ARCHIVE_READ_MAGIC, "archive_read_set_filter_option",
54	    archive_set_filter_option);
55}
56
57int
58archive_read_set_option(struct archive *a, const char *m, const char *o,
59    const char *v)
60{
61	return _archive_set_option(a, m, o, v,
62	    ARCHIVE_READ_MAGIC, "archive_read_set_option",
63	    archive_set_option);
64}
65
66int
67archive_read_set_options(struct archive *a, const char *options)
68{
69	return _archive_set_options(a, options,
70	    ARCHIVE_READ_MAGIC, "archive_read_set_options",
71	    archive_set_option);
72}
73
74static int
75archive_set_format_option(struct archive *_a, const char *m, const char *o,
76    const char *v)
77{
78	struct archive_read *a = (struct archive_read *)_a;
79	size_t i;
80	int r, rv = ARCHIVE_WARN, matched_modules = 0;
81
82	for (i = 0; i < sizeof(a->formats)/sizeof(a->formats[0]); i++) {
83		struct archive_format_descriptor *format = &a->formats[i];
84
85		if (format->options == NULL || format->name == NULL)
86			/* This format does not support option. */
87			continue;
88		if (m != NULL) {
89			if (strcmp(format->name, m) != 0)
90				continue;
91			++matched_modules;
92		}
93
94		a->format = format;
95		r = format->options(a, o, v);
96		a->format = NULL;
97
98		if (r == ARCHIVE_FATAL)
99			return (ARCHIVE_FATAL);
100
101		if (r == ARCHIVE_OK)
102			rv = ARCHIVE_OK;
103	}
104	/* If the format name didn't match, return a special code for
105	 * _archive_set_option[s]. */
106	if (m != NULL && matched_modules == 0)
107		return ARCHIVE_WARN - 1;
108	return (rv);
109}
110
111static int
112archive_set_filter_option(struct archive *_a, const char *m, const char *o,
113    const char *v)
114{
115	struct archive_read *a = (struct archive_read *)_a;
116	struct archive_read_filter *filter;
117	struct archive_read_filter_bidder *bidder;
118	int r, rv = ARCHIVE_WARN, matched_modules = 0;
119
120	for (filter = a->filter; filter != NULL; filter = filter->upstream) {
121		bidder = filter->bidder;
122		if (bidder == NULL)
123			continue;
124		if (bidder->options == NULL)
125			/* This bidder does not support option */
126			continue;
127		if (m != NULL) {
128			if (strcmp(filter->name, m) != 0)
129				continue;
130			++matched_modules;
131		}
132
133		r = bidder->options(bidder, o, v);
134
135		if (r == ARCHIVE_FATAL)
136			return (ARCHIVE_FATAL);
137
138		if (r == ARCHIVE_OK)
139			rv = ARCHIVE_OK;
140	}
141	/* If the filter name didn't match, return a special code for
142	 * _archive_set_option[s]. */
143	if (m != NULL && matched_modules == 0)
144		return ARCHIVE_WARN - 1;
145	return (rv);
146}
147
148static int
149archive_set_option(struct archive *a, const char *m, const char *o,
150    const char *v)
151{
152	return _archive_set_either_option(a, m, o, v,
153	    archive_set_format_option,
154	    archive_set_filter_option);
155}
156