1/*-
2 * Copyright (c) 2003-2007 Tim Kientzle
3 * Copyright (c) 2015 Okhotnikov Kirill
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 *    notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 *    notice, this list of conditions and the following disclaimer in the
13 *    documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS OR
16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18 * IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT, INDIRECT,
19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 */
26
27#include "archive_platform.h"
28__FBSDID("$FreeBSD: stable/11/contrib/libarchive/libarchive/archive_write_set_format_filter_by_ext.c 370535 2021-09-10 08:34:36Z git2svn $");
29
30#ifdef HAVE_SYS_TYPES_H
31#include <sys/types.h>
32#endif
33
34#ifdef HAVE_ERRNO_H
35#include <errno.h>
36#endif
37#ifdef HAVE_STRING_H
38#include <string.h>
39#endif
40
41#include "archive.h"
42#include "archive_private.h"
43
44/* A table that maps names to functions. */
45static const
46struct { const char *name; int (*format)(struct archive *); int (*filter)(struct archive *);  } names[] =
47{
48	{ ".7z",	archive_write_set_format_7zip,            archive_write_add_filter_none},
49	{ ".zip",	archive_write_set_format_zip,             archive_write_add_filter_none},
50	{ ".jar",	archive_write_set_format_zip,             archive_write_add_filter_none},
51	{ ".cpio",	archive_write_set_format_cpio,            archive_write_add_filter_none},
52	{ ".iso",	archive_write_set_format_iso9660,         archive_write_add_filter_none},
53#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__NetBSD__) || defined(__OpenBSD__)
54	{ ".a",	        archive_write_set_format_ar_bsd,          archive_write_add_filter_none},
55	{ ".ar",	archive_write_set_format_ar_bsd,          archive_write_add_filter_none},
56#else
57	{ ".a",	        archive_write_set_format_ar_svr4,         archive_write_add_filter_none},
58	{ ".ar",	archive_write_set_format_ar_svr4,         archive_write_add_filter_none},
59#endif
60	{ ".tar",	archive_write_set_format_pax_restricted,  archive_write_add_filter_none},
61	{ ".tgz",	archive_write_set_format_pax_restricted,  archive_write_add_filter_gzip},
62	{ ".tar.gz",	archive_write_set_format_pax_restricted,  archive_write_add_filter_gzip},
63	{ ".tar.bz2",	archive_write_set_format_pax_restricted,  archive_write_add_filter_bzip2},
64	{ ".tar.xz",	archive_write_set_format_pax_restricted,  archive_write_add_filter_xz},
65	{ NULL,		NULL,                             NULL }
66};
67
68static
69int cmpsuff(const char *str, const char *suffix)
70{
71  size_t length_str, length_suffix;
72
73  if ((str == NULL) || (suffix == NULL))
74    return -1;
75
76  length_str = strlen(str);
77  length_suffix = strlen(suffix);
78
79  if (length_str >= length_suffix) {
80    return strcmp(str + (length_str - length_suffix), suffix);
81  } else {
82    return -1;
83  }
84}
85
86static int get_array_index(const char *name)
87{
88  int i;
89
90  for (i = 0; names[i].name != NULL; i++)
91  {
92    if (cmpsuff(name, names[i].name) == 0)
93      return i;
94  }
95  return -1;
96
97}
98
99int
100archive_write_set_format_filter_by_ext(struct archive *a, const char *filename)
101{
102  int names_index = get_array_index(filename);
103
104  if (names_index >= 0)
105  {
106    int format_state = (names[names_index].format)(a);
107    if (format_state == ARCHIVE_OK)
108      return ((names[names_index].filter)(a));
109    else
110      return format_state;
111  }
112
113  archive_set_error(a, EINVAL, "No such format '%s'", filename);
114  a->state = ARCHIVE_STATE_FATAL;
115  return (ARCHIVE_FATAL);
116}
117
118int
119archive_write_set_format_filter_by_ext_def(struct archive *a, const char *filename, const char * def_ext)
120{
121  int names_index = get_array_index(filename);
122
123  if (names_index < 0)
124    names_index = get_array_index(def_ext);
125
126  if (names_index >= 0)
127  {
128    int format_state = (names[names_index].format)(a);
129    if (format_state == ARCHIVE_OK)
130      return ((names[names_index].filter)(a));
131    else
132      return format_state;
133  }
134
135  archive_set_error(a, EINVAL, "No such format '%s'", filename);
136  a->state = ARCHIVE_STATE_FATAL;
137  return (ARCHIVE_FATAL);
138}
139
140
141
142
143