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gerrit.nordix.org / codeaurora / busybox / d5a2780aa2fdee601f92df47a63a0945a7197755 / . / include / unarchive.h
blob: 8396f878ceebd73d47081499f83d78efef0fa9cb [file] [log] [blame]
Glenn L McGrath7ca04f32002-09-25 02:47:48 +0000[diff] [blame]1#ifndef __UNARCHIVE_H__
2#define __UNARCHIVE_H__
Glenn L McGrathe9fc7812001-10-25 14:57:14 +0000[diff] [blame]3
Glenn L McGrath7ca04f32002-09-25 02:47:48 +0000[diff] [blame]4#define ARCHIVE_PRESERVE_DATE 1
5#define ARCHIVE_CREATE_LEADING_DIRS 2
6#define ARCHIVE_EXTRACT_UNCONDITIONAL 4
7#define ARCHIVE_EXTRACT_QUIET 8
8
9#include <sys/types.h>
Glenn L McGrath237ae422002-11-03 14:05:15 +0000[diff] [blame]10#include <stdio.h>
Glenn L McGrath66125c82002-12-08 00:54:33 +0000[diff] [blame]11#include "libbb.h"
Glenn L McGrathe9fc7812001-10-25 14:57:14 +0000[diff] [blame]12
13typedef struct file_headers_s {
14 char *name;
15 char *link_name;
16 off_t size;
17 uid_t uid;
18 gid_t gid;
19 mode_t mode;
20 time_t mtime;
21 dev_t device;
22} file_header_t;
23
Glenn L McGrath7ca04f32002-09-25 02:47:48 +0000[diff] [blame]24typedef struct archive_handle_s {
25 /* define if the header and data compenent should processed */
Glenn L McGrath18bbca12002-11-05 01:52:23 +0000[diff] [blame]26 char (*filter)(struct archive_handle_s *);
Glenn L McGrath66125c82002-12-08 00:54:33 +0000[diff] [blame]27 llist_t *accept;
28 llist_t *reject;
29 llist_t *passed; /* List of files that have successfully been worked on */
Glenn L McGrathe9fc7812001-10-25 14:57:14 +0000[diff] [blame]30
Glenn L McGrath7ca04f32002-09-25 02:47:48 +0000[diff] [blame]31 /* Contains the processed header entry */
32 file_header_t *file_header;
Glenn L McGrathe9fc7812001-10-25 14:57:14 +0000[diff] [blame]33
Glenn L McGrath7ca04f32002-09-25 02:47:48 +0000[diff] [blame]34 /* process the header component, e.g. tar -t */
35 void (*action_header)(const file_header_t *);
Glenn L McGrathe9fc7812001-10-25 14:57:14 +0000[diff] [blame]36
Glenn L McGrath7ca04f32002-09-25 02:47:48 +0000[diff] [blame]37 /* process the data componenet, e.g. extract to filesystem */
38 void (*action_data)(struct archive_handle_s *);
Glenn L McGrath18bbca12002-11-05 01:52:23 +0000[diff] [blame]39
40 /* How to process any sub archive, e.g. get_header_tar_gz */
Glenn L McGrath7ca04f32002-09-25 02:47:48 +0000[diff] [blame]41 char (*action_data_subarchive)(struct archive_handle_s *);
42
43 /* Contains the handle to a sub archive */
44 struct archive_handle_s *sub_archive;
45
46 /* The raw stream as read from disk or stdin */
47 int src_fd;
48
49 /* Count the number of bytes processed */
50 off_t offset;
51
Glenn L McGrath237ae422002-11-03 14:05:15 +0000[diff] [blame]52 /* Function that reads data: read or read_bz */
53 ssize_t (*read)(int fd, void *buf, size_t count);
54
55 /* Function that skips data: read_by_char or read_by_skip */
56 void (*seek)(const struct archive_handle_s *archive_handle, const unsigned int amount);
57
Glenn L McGrath61b79042002-10-19 10:40:55 +0000[diff] [blame]58 /* Temperary storage */
59 char *buffer;
60
Glenn L McGrath7ca04f32002-09-25 02:47:48 +0000[diff] [blame]61 /* Misc. stuff */
62 unsigned char flags;
63
64} archive_handle_t;
65
66extern archive_handle_t *init_handle(void);
67
Glenn L McGrath18bbca12002-11-05 01:52:23 +0000[diff] [blame]68extern char filter_accept_all(archive_handle_t *archive_handle);
69extern char filter_accept_list(archive_handle_t *archive_handle);
70extern char filter_accept_list_reassign(archive_handle_t *archive_handle);
71extern char filter_accept_reject_list(archive_handle_t *archive_handle);
Glenn L McGrath7ca04f32002-09-25 02:47:48 +0000[diff] [blame]72
73extern void unpack_ar_archive(archive_handle_t *ar_archive);
74
Glenn L McGrath7ca04f32002-09-25 02:47:48 +0000[diff] [blame]75extern void data_skip(archive_handle_t *archive_handle);
76extern void data_extract_all(archive_handle_t *archive_handle);
77extern void data_extract_to_stdout(archive_handle_t *archive_handle);
Glenn L McGrath61b79042002-10-19 10:40:55 +0000[diff] [blame]78extern void data_extract_to_buffer(archive_handle_t *archive_handle);
Glenn L McGrath7ca04f32002-09-25 02:47:48 +0000[diff] [blame]79
80extern void header_skip(const file_header_t *file_header);
81extern void header_list(const file_header_t *file_header);
82extern void header_verbose_list(const file_header_t *file_header);
83
84extern void check_header_gzip(int src_fd);
85extern void check_trailer_gzip(int src_fd);
86
87extern char get_header_ar(archive_handle_t *archive_handle);
Glenn L McGrathb72a7352002-12-10 00:17:22 +0000[diff] [blame]88extern char get_header_cpio(archive_handle_t *archive_handle);
Glenn L McGrath7ca04f32002-09-25 02:47:48 +0000[diff] [blame]89extern char get_header_tar(archive_handle_t *archive_handle);
Glenn L McGrath7f2a9532002-11-05 02:56:57 +0000[diff] [blame]90extern char get_header_tar_bz2(archive_handle_t *archive_handle);
Glenn L McGrath7ca04f32002-09-25 02:47:48 +0000[diff] [blame]91extern char get_header_tar_gz(archive_handle_t *archive_handle);
92
Glenn L McGrath237ae422002-11-03 14:05:15 +0000[diff] [blame]93extern void seek_by_jump(const archive_handle_t *archive_handle, const unsigned int amount);
94extern void seek_by_char(const archive_handle_t *archive_handle, const unsigned int amount);
Glenn L McGrath60bce492002-11-03 07:28:38 +0000[diff] [blame]95
Glenn L McGrath237ae422002-11-03 14:05:15 +0000[diff] [blame]96extern unsigned char archive_xread_char(const archive_handle_t *archive_handle);
97extern ssize_t archive_xread(const archive_handle_t *archive_handle, unsigned char *buf, const size_t count);
98extern void archive_xread_all(const archive_handle_t *archive_handle, void *buf, const size_t count);
99extern ssize_t archive_xread_all_eof(archive_handle_t *archive_handle, unsigned char *buf, size_t count);
100
101extern void data_align(archive_handle_t *archive_handle, const unsigned short boundary);
Glenn L McGrath237ae422002-11-03 14:05:15 +0000[diff] [blame]102extern void archive_copy_file(const archive_handle_t *archive_handle, const int dst_fd);
Glenn L McGrathc5c1a8a2002-10-19 06:19:22 +0000[diff] [blame]103extern const llist_t *find_list_entry(const llist_t *list, const char *filename);
Glenn L McGrath237ae422002-11-03 14:05:15 +0000[diff] [blame]104
105extern ssize_t read_bz2(int fd, void *buf, size_t count);
106extern void BZ2_bzReadOpen(int fd, void *unused, int nUnused);
Glenn L McGrath7f2a9532002-11-05 02:56:57 +0000[diff] [blame]107extern void BZ2_bzReadClose(void);
Glenn L McGrath237ae422002-11-03 14:05:15 +0000[diff] [blame]108extern unsigned char uncompressStream(int src_fd, int dst_fd);
109
Glenn L McGrathefe78892002-11-19 21:07:17 +0000[diff] [blame]110extern ssize_t read_gz(int fd, void *buf, size_t count);
111extern void GZ_gzReadOpen(int fd, void *unused, int nUnused);
112extern void GZ_gzReadClose(void);
113extern int inflate(int in, int out);
114
Glenn L McGrath7ca04f32002-09-25 02:47:48 +0000[diff] [blame]115#endif