Contents of /tags/mkinitrd-6_2_3/busybox/archival/ar.c
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Mon May 31 20:54:44 2010 UTC (14 years, 3 months ago) by niro
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File size: 2349 byte(s)
Mon May 31 20:54:44 2010 UTC (14 years, 3 months ago) by niro
File MIME type: text/plain
File size: 2349 byte(s)
tagged 'mkinitrd-6_2_3'
1 | /* vi: set sw=4 ts=4: */ |
2 | /* |
3 | * Mini ar implementation for busybox |
4 | * |
5 | * Copyright (C) 2000 by Glenn McGrath |
6 | * |
7 | * Based in part on BusyBox tar, Debian dpkg-deb and GNU ar. |
8 | * |
9 | * Licensed under GPLv2 or later, see file LICENSE in this tarball for details. |
10 | * |
11 | * There is no single standard to adhere to so ar may not portable |
12 | * between different systems |
13 | * http://www.unix-systems.org/single_unix_specification_v2/xcu/ar.html |
14 | */ |
15 | |
16 | #include "libbb.h" |
17 | #include "unarchive.h" |
18 | |
19 | static void FAST_FUNC header_verbose_list_ar(const file_header_t *file_header) |
20 | { |
21 | const char *mode = bb_mode_string(file_header->mode); |
22 | char *mtime; |
23 | |
24 | mtime = ctime(&file_header->mtime); |
25 | mtime[16] = ' '; |
26 | memmove(&mtime[17], &mtime[20], 4); |
27 | mtime[21] = '\0'; |
28 | printf("%s %d/%d%7d %s %s\n", &mode[1], file_header->uid, file_header->gid, |
29 | (int) file_header->size, &mtime[4], file_header->name); |
30 | } |
31 | |
32 | #define AR_CTX_PRINT 0x01 |
33 | #define AR_CTX_LIST 0x02 |
34 | #define AR_CTX_EXTRACT 0x04 |
35 | #define AR_OPT_PRESERVE_DATE 0x08 |
36 | #define AR_OPT_VERBOSE 0x10 |
37 | #define AR_OPT_CREATE 0x20 |
38 | #define AR_OPT_INSERT 0x40 |
39 | |
40 | int ar_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; |
41 | int ar_main(int argc UNUSED_PARAM, char **argv) |
42 | { |
43 | static const char msg_unsupported_err[] ALIGN1 = |
44 | "archive %s is not supported"; |
45 | |
46 | archive_handle_t *archive_handle; |
47 | unsigned opt; |
48 | |
49 | archive_handle = init_handle(); |
50 | |
51 | /* Prepend '-' to the first argument if required */ |
52 | opt_complementary = "--:p:t:x:-1:p--tx:t--px:x--pt"; |
53 | opt = getopt32(argv, "ptxovcr"); |
54 | argv += optind; |
55 | |
56 | if (opt & AR_CTX_PRINT) { |
57 | archive_handle->action_data = data_extract_to_stdout; |
58 | } |
59 | if (opt & AR_CTX_LIST) { |
60 | archive_handle->action_header = header_list; |
61 | } |
62 | if (opt & AR_CTX_EXTRACT) { |
63 | archive_handle->action_data = data_extract_all; |
64 | } |
65 | if (opt & AR_OPT_PRESERVE_DATE) { |
66 | archive_handle->ah_flags |= ARCHIVE_RESTORE_DATE; |
67 | } |
68 | if (opt & AR_OPT_VERBOSE) { |
69 | archive_handle->action_header = header_verbose_list_ar; |
70 | } |
71 | if (opt & AR_OPT_CREATE) { |
72 | bb_error_msg_and_die(msg_unsupported_err, "creation"); |
73 | } |
74 | if (opt & AR_OPT_INSERT) { |
75 | bb_error_msg_and_die(msg_unsupported_err, "insertion"); |
76 | } |
77 | |
78 | archive_handle->src_fd = xopen(*argv++, O_RDONLY); |
79 | |
80 | while (*argv) { |
81 | archive_handle->filter = filter_accept_list; |
82 | llist_add_to(&archive_handle->accept, *argv++); |
83 | } |
84 | |
85 | unpack_ar_archive(archive_handle); |
86 | |
87 | return EXIT_SUCCESS; |
88 | } |