1 /*-
2  * Copyright (c) 2003-2007 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: head/lib/libarchive/archive_virtual.c 201098 2009-12-28 02:58:14Z kientzle $");
28 
29 #include "archive.h"
30 #include "archive_entry.h"
31 #include "archive_private.h"
32 
33 int
34 archive_filter_code(struct archive *a, int n)
35 {
36 	return ((a->vtable->archive_filter_code)(a, n));
37 }
38 
39 int
40 archive_filter_count(struct archive *a)
41 {
42 	return ((a->vtable->archive_filter_count)(a));
43 }
44 
45 const char *
46 archive_filter_name(struct archive *a, int n)
47 {
48 	return ((a->vtable->archive_filter_name)(a, n));
49 }
50 
51 la_int64_t
52 archive_filter_bytes(struct archive *a, int n)
53 {
54 	return ((a->vtable->archive_filter_bytes)(a, n));
55 }
56 
57 int
58 archive_free(struct archive *a)
59 {
60 	if (a == NULL)
61 		return (ARCHIVE_OK);
62 	return ((a->vtable->archive_free)(a));
63 }
64 
65 int
66 archive_write_close(struct archive *a)
67 {
68 	return ((a->vtable->archive_close)(a));
69 }
70 
71 int
72 archive_read_close(struct archive *a)
73 {
74 	return ((a->vtable->archive_close)(a));
75 }
76 
77 int
78 archive_write_fail(struct archive *a)
79 {
80 	a->state = ARCHIVE_STATE_FATAL;
81 	return a->state;
82 }
83 
84 int
85 archive_write_free(struct archive *a)
86 {
87 	return archive_free(a);
88 }
89 
90 #if ARCHIVE_VERSION_NUMBER < 4000000
91 /* For backwards compatibility; will be removed with libarchive 4.0. */
92 int
93 archive_write_finish(struct archive *a)
94 {
95 	return archive_write_free(a);
96 }
97 #endif
98 
99 int
100 archive_read_free(struct archive *a)
101 {
102 	return archive_free(a);
103 }
104 
105 #if ARCHIVE_VERSION_NUMBER < 4000000
106 /* For backwards compatibility; will be removed with libarchive 4.0. */
107 int
108 archive_read_finish(struct archive *a)
109 {
110 	return archive_read_free(a);
111 }
112 #endif
113 
114 int
115 archive_write_header(struct archive *a, struct archive_entry *entry)
116 {
117 	++a->file_count;
118 	return ((a->vtable->archive_write_header)(a, entry));
119 }
120 
121 int
122 archive_write_finish_entry(struct archive *a)
123 {
124 	return ((a->vtable->archive_write_finish_entry)(a));
125 }
126 
127 la_ssize_t
128 archive_write_data(struct archive *a, const void *buff, size_t s)
129 {
130 	return ((a->vtable->archive_write_data)(a, buff, s));
131 }
132 
133 la_ssize_t
134 archive_write_data_block(struct archive *a, const void *buff, size_t s,
135     la_int64_t o)
136 {
137 	if (a->vtable->archive_write_data_block == NULL) {
138 		archive_set_error(a, ARCHIVE_ERRNO_MISC,
139 		    "archive_write_data_block not supported");
140 		a->state = ARCHIVE_STATE_FATAL;
141 		return (ARCHIVE_FATAL);
142 	}
143 	return ((a->vtable->archive_write_data_block)(a, buff, s, o));
144 }
145 
146 int
147 archive_read_next_header(struct archive *a, struct archive_entry **entry)
148 {
149 	return ((a->vtable->archive_read_next_header)(a, entry));
150 }
151 
152 int
153 archive_read_next_header2(struct archive *a, struct archive_entry *entry)
154 {
155 	return ((a->vtable->archive_read_next_header2)(a, entry));
156 }
157 
158 int
159 archive_read_data_block(struct archive *a,
160     const void **buff, size_t *s, la_int64_t *o)
161 {
162 	return ((a->vtable->archive_read_data_block)(a, buff, s, o));
163 }
164