1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
|
/*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Library General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
*/
#include <fcntl.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <getopt.h>
#include "unarchive.h"
#include "busybox.h"
#define DPKG_DEB_OPT_CONTENTS 1
#define DPKG_DEB_OPT_CONTROL 2
#define DPKG_DEB_OPT_FIELD 4
#define DPKG_DEB_OPT_EXTRACT 8
#define DPKG_DEB_OPT_EXTRACT_VERBOSE 16
extern int dpkg_deb_main(int argc, char **argv)
{
archive_handle_t *ar_archive;
archive_handle_t *tar_archive;
llist_t *control_tar_llist = NULL;
unsigned long opt;
char *extract_dir = NULL;
short argcount = 1;
/* Setup the tar archive handle */
tar_archive = init_handle();
/* Setup an ar archive handle that refers to the gzip sub archive */
ar_archive = init_handle();
ar_archive->sub_archive = tar_archive;
ar_archive->filter = filter_accept_list_reassign;
#ifdef CONFIG_FEATURE_DEB_TAR_GZ
ar_archive->accept = llist_add_to(NULL, "data.tar.gz");
control_tar_llist = llist_add_to(NULL, "control.tar.gz");
#endif
#ifdef CONFIG_FEATURE_DEB_TAR_BZ2
ar_archive->accept = llist_add_to(ar_archive->accept, "data.tar.bz2");
control_tar_llist = llist_add_to(control_tar_llist, "control.tar.bz2");
#endif
bb_opt_complementaly = "c~efXx:e~cfXx:f~ceXx:X~cefx:x~cefX";
opt = bb_getopt_ulflags(argc, argv, "cefXx");
if (opt & DPKG_DEB_OPT_CONTENTS) {
tar_archive->action_header = header_verbose_list;
}
if (opt & DPKG_DEB_OPT_CONTROL) {
ar_archive->accept = control_tar_llist;
tar_archive->action_data = data_extract_all;
if (optind + 1 == argc) {
extract_dir = "./DEBIAN";
} else {
argcount++;
}
}
if (opt & DPKG_DEB_OPT_FIELD) {
/* Print the entire control file
* it should accept a second argument which specifies a
* specific field to print */
ar_archive->accept = control_tar_llist;
tar_archive->accept = llist_add_to(NULL, "./control");;
tar_archive->filter = filter_accept_list;
tar_archive->action_data = data_extract_to_stdout;
}
if (opt & DPKG_DEB_OPT_EXTRACT) {
tar_archive->action_header = header_list;
}
if (opt & (DPKG_DEB_OPT_EXTRACT_VERBOSE | DPKG_DEB_OPT_EXTRACT)) {
tar_archive->action_data = data_extract_all;
argcount = 2;
}
if ((optind + argcount != argc) || (opt & BB_GETOPT_ERROR)) {
bb_show_usage();
}
tar_archive->src_fd = ar_archive->src_fd = bb_xopen(argv[optind++], O_RDONLY);
/* Workout where to extract the files */
/* 2nd argument is a dir name */
if (argv[optind]) {
extract_dir = argv[optind];
}
if (extract_dir) {
mkdir(extract_dir, 0777);
chdir(extract_dir);
}
unpack_ar_archive(ar_archive);
/* Cleanup */
close (ar_archive->src_fd);
return(EXIT_SUCCESS);
}
|
