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gerrit.nordix.org / codeaurora / busybox / be7d2a8ded621a6d62f8caa76f7c51185b166ab1 / . / include / unarchive.h
blob: 4ed2ccd0c211897c82922c74aca06b5b25fd01eb [file] [log] [blame]
Bernhard Reutner-Fischer9457e702006-04-02 20:12:31 +0000[diff] [blame]1/* vi: set sw=4 ts=4: */
Glenn L McGrath7ca04f32002-09-25 02:47:48 +0000[diff] [blame]2#ifndef __UNARCHIVE_H__
3#define __UNARCHIVE_H__
Glenn L McGrathe9fc7812001-10-25 14:57:14 +0000[diff] [blame]4
Rob Landleyf3d6c942005-10-27 22:49:08 +0000[diff] [blame]5#define ARCHIVE_PRESERVE_DATE 1
6#define ARCHIVE_CREATE_LEADING_DIRS 2
7#define ARCHIVE_EXTRACT_UNCONDITIONAL 4
8#define ARCHIVE_EXTRACT_QUIET 8
9#define ARCHIVE_EXTRACT_NEWER 16
10#define ARCHIVE_NOPRESERVE_OWN 32
11#define ARCHIVE_NOPRESERVE_PERM 64
Glenn L McGrath7ca04f32002-09-25 02:47:48 +0000[diff] [blame]12
Denis Vlasenko75103842007-06-20 14:49:47 +0000[diff] [blame]13typedef struct file_header_t {
Glenn L McGrathe9fc7812001-10-25 14:57:14 +0000[diff] [blame]14 char *name;
Denis Vlasenko75103842007-06-20 14:49:47 +0000[diff] [blame]15 char *link_target;
Denis Vlasenkoe00e5022008-02-14 20:37:54 +0000[diff] [blame]16#if ENABLE_FEATURE_TAR_UNAME_GNAME
17 char *uname;
18 char *gname;
19#endif
Glenn L McGrathe9fc7812001-10-25 14:57:14 +0000[diff] [blame]20 off_t size;
21 uid_t uid;
22 gid_t gid;
23 mode_t mode;
24 time_t mtime;
25 dev_t device;
26} file_header_t;
27
Denis Vlasenko75103842007-06-20 14:49:47 +0000[diff] [blame]28typedef struct archive_handle_t {
Denis Vlasenko714701c2006-12-22 00:21:07 +0000[diff] [blame]29 /* define if the header and data component should be processed */
Denis Vlasenko75103842007-06-20 14:49:47 +0000[diff] [blame]30 char (*filter)(struct archive_handle_t *);
Glenn L McGrath66125c82002-12-08 00:54:33 +0000[diff] [blame]31 llist_t *accept;
Bernhard Reutner-Fischer9457e702006-04-02 20:12:31 +0000[diff] [blame]32 /* List of files that have been rejected */
Glenn L McGrath66125c82002-12-08 00:54:33 +0000[diff] [blame]33 llist_t *reject;
Bernhard Reutner-Fischer9457e702006-04-02 20:12:31 +0000[diff] [blame]34 /* List of files that have successfully been worked on */
35 llist_t *passed;
Glenn L McGrathe9fc7812001-10-25 14:57:14 +0000[diff] [blame]36
Glenn L McGrath7ca04f32002-09-25 02:47:48 +0000[diff] [blame]37 /* Contains the processed header entry */
38 file_header_t *file_header;
Glenn L McGrathe9fc7812001-10-25 14:57:14 +0000[diff] [blame]39
Glenn L McGrath7ca04f32002-09-25 02:47:48 +0000[diff] [blame]40 /* process the header component, e.g. tar -t */
41 void (*action_header)(const file_header_t *);
Glenn L McGrathe9fc7812001-10-25 14:57:14 +0000[diff] [blame]42
Glenn L McGrathf235d052003-10-29 03:37:54 +0000[diff] [blame]43 /* process the data component, e.g. extract to filesystem */
Denis Vlasenko75103842007-06-20 14:49:47 +0000[diff] [blame]44 void (*action_data)(struct archive_handle_t *);
Eric Andersenc7bda1c2004-03-15 08:29:22 +0000[diff] [blame]45
Glenn L McGrath18bbca12002-11-05 01:52:23 +0000[diff] [blame]46 /* How to process any sub archive, e.g. get_header_tar_gz */
Denis Vlasenko75103842007-06-20 14:49:47 +0000[diff] [blame]47 char (*action_data_subarchive)(struct archive_handle_t *);
Glenn L McGrath7ca04f32002-09-25 02:47:48 +0000[diff] [blame]48
49 /* Contains the handle to a sub archive */
Denis Vlasenko75103842007-06-20 14:49:47 +0000[diff] [blame]50 struct archive_handle_t *sub_archive;
Glenn L McGrath7ca04f32002-09-25 02:47:48 +0000[diff] [blame]51
52 /* The raw stream as read from disk or stdin */
53 int src_fd;
54
55 /* Count the number of bytes processed */
56 off_t offset;
57
Glenn L McGrath237ae422002-11-03 14:05:15 +0000[diff] [blame]58 /* Function that skips data: read_by_char or read_by_skip */
Denis Vlasenko75103842007-06-20 14:49:47 +0000[diff] [blame]59 void (*seek)(const struct archive_handle_t *archive_handle, const unsigned amount);
Glenn L McGrath237ae422002-11-03 14:05:15 +0000[diff] [blame]60
Glenn L McGrathf235d052003-10-29 03:37:54 +0000[diff] [blame]61 /* Temporary storage */
Glenn L McGrath61b79042002-10-19 10:40:55 +0000[diff] [blame]62 char *buffer;
63
Bernhard Reutner-Fischer9457e702006-04-02 20:12:31 +0000[diff] [blame]64 /* Flags and misc. stuff */
Glenn L McGrath7ca04f32002-09-25 02:47:48 +0000[diff] [blame]65 unsigned char flags;
66
67} archive_handle_t;
68
Denis Vlasenkobb3d0fa2007-01-03 01:57:25 +0000[diff] [blame]69
Glenn L McGrath7ca04f32002-09-25 02:47:48 +0000[diff] [blame]70extern archive_handle_t *init_handle(void);
71
Glenn L McGrath18bbca12002-11-05 01:52:23 +0000[diff] [blame]72extern char filter_accept_all(archive_handle_t *archive_handle);
73extern char filter_accept_list(archive_handle_t *archive_handle);
74extern char filter_accept_list_reassign(archive_handle_t *archive_handle);
75extern char filter_accept_reject_list(archive_handle_t *archive_handle);
Glenn L McGrath7ca04f32002-09-25 02:47:48 +0000[diff] [blame]76
77extern void unpack_ar_archive(archive_handle_t *ar_archive);
78
Glenn L McGrath7ca04f32002-09-25 02:47:48 +0000[diff] [blame]79extern void data_skip(archive_handle_t *archive_handle);
80extern void data_extract_all(archive_handle_t *archive_handle);
81extern void data_extract_to_stdout(archive_handle_t *archive_handle);
Glenn L McGrath61b79042002-10-19 10:40:55 +0000[diff] [blame]82extern void data_extract_to_buffer(archive_handle_t *archive_handle);
Glenn L McGrath7ca04f32002-09-25 02:47:48 +0000[diff] [blame]83
84extern void header_skip(const file_header_t *file_header);
85extern void header_list(const file_header_t *file_header);
86extern void header_verbose_list(const file_header_t *file_header);
87
Glenn L McGrath7ca04f32002-09-25 02:47:48 +0000[diff] [blame]88extern char get_header_ar(archive_handle_t *archive_handle);
Glenn L McGrathb72a7352002-12-10 00:17:22 +0000[diff] [blame]89extern char get_header_cpio(archive_handle_t *archive_handle);
Glenn L McGrath7ca04f32002-09-25 02:47:48 +0000[diff] [blame]90extern char get_header_tar(archive_handle_t *archive_handle);
Glenn L McGrath7f2a9532002-11-05 02:56:57 +0000[diff] [blame]91extern char get_header_tar_bz2(archive_handle_t *archive_handle);
Rob Landleyc1d69902006-01-20 18:28:50 +0000[diff] [blame]92extern char get_header_tar_lzma(archive_handle_t *archive_handle);
Glenn L McGrath7ca04f32002-09-25 02:47:48 +0000[diff] [blame]93extern char get_header_tar_gz(archive_handle_t *archive_handle);
94
Denis Vlasenko75103842007-06-20 14:49:47 +0000[diff] [blame]95extern void seek_by_jump(const archive_handle_t *archive_handle, const unsigned amount);
96extern void seek_by_read(const archive_handle_t *archive_handle, const unsigned amount);
Glenn L McGrath60bce492002-11-03 07:28:38 +0000[diff] [blame]97
Glenn L McGrath237ae422002-11-03 14:05:15 +0000[diff] [blame]98extern ssize_t archive_xread_all_eof(archive_handle_t *archive_handle, unsigned char *buf, size_t count);
99
100extern void data_align(archive_handle_t *archive_handle, const unsigned short boundary);
Glenn L McGrathc5c1a8a2002-10-19 06:19:22 +0000[diff] [blame]101extern const llist_t *find_list_entry(const llist_t *list, const char *filename);
Denis Vlasenko314908d2006-09-03 14:04:33 +0000[diff] [blame]102extern const llist_t *find_list_entry2(const llist_t *list, const char *filename);
Glenn L McGrath237ae422002-11-03 14:05:15 +0000[diff] [blame]103
Denis Vlasenkoc6758a02007-04-10 21:40:19 +0000[diff] [blame]104/* A bit of bunzip2 internals are exposed for compressed help support: */
105typedef struct bunzip_data bunzip_data;
106int start_bunzip(bunzip_data **bdp, int in_fd, const unsigned char *inbuf, int len);
107int read_bunzip(bunzip_data *bd, char *outbuf, int len);
108void dealloc_bunzip(bunzip_data *bd);
Denis Vlasenkocd42cb82007-01-05 23:56:53 +0000[diff] [blame]109
110typedef struct inflate_unzip_result {
111 off_t bytes_out;
112 uint32_t crc;
113} inflate_unzip_result;
114
Denis Vlasenkoc14d39e2007-06-08 13:05:39 +0000[diff] [blame]115extern USE_DESKTOP(long long) int unpack_bz2_stream(int src_fd, int dst_fd);
Denis Vlasenkoe8ef7ec2008-02-04 12:12:48 +0000[diff] [blame]116extern USE_DESKTOP(long long) int inflate_unzip(inflate_unzip_result *res, off_t compr_size, int src_fd, int dst_fd);
Denis Vlasenkoc14d39e2007-06-08 13:05:39 +0000[diff] [blame]117extern USE_DESKTOP(long long) int unpack_gz_stream(int src_fd, int dst_fd);
118extern USE_DESKTOP(long long) int unpack_lzma_stream(int src_fd, int dst_fd);
Glenn L McGrath237ae422002-11-03 14:05:15 +0000[diff] [blame]119
Denis Vlasenko211f7f82007-09-05 11:48:32 +0000[diff] [blame]120#if BB_MMU
Denis Vlasenko97a8dd32006-10-01 15:55:11 +0000[diff] [blame]121extern int open_transformer(int src_fd,
122 USE_DESKTOP(long long) int (*transformer)(int src_fd, int dst_fd));
Denis Vlasenko059c9172007-11-12 02:13:12 +0000[diff] [blame]123#define open_transformer(src_fd, transformer, transform_prog) open_transformer(src_fd, transformer)
Denis Vlasenko211f7f82007-09-05 11:48:32 +0000[diff] [blame]124#else
Denis Vlasenko059c9172007-11-12 02:13:12 +0000[diff] [blame]125extern int open_transformer(int src_fd, const char *transform_prog);
126#define open_transformer(src_fd, transformer, transform_prog) open_transformer(src_fd, transform_prog)
Denis Vlasenko211f7f82007-09-05 11:48:32 +0000[diff] [blame]127#endif
Glenn L McGrath5699b852003-11-15 23:19:05 +0000[diff] [blame]128
Glenn L McGrath7ca04f32002-09-25 02:47:48 +0000[diff] [blame]129#endif