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gerrit.nordix.org / codeaurora / busybox / 54ac057c0016ac23b7367342f4834e33cf7d47d7 / . / include / unarchive.h
blob: 9f1331338a3142dc136dd0988a5fdb461756cfaa [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
Glenn L McGrath4cee66d2003-08-28 19:12:23 +0000[diff] [blame]8#define ARCHIVE_EXTRACT_NEWER 16
Glenn L McGrath7ca04f32002-09-25 02:47:48 +0000[diff] [blame]9
10#include <sys/types.h>
Glenn L McGrath237ae422002-11-03 14:05:15 +0000[diff] [blame]11#include <stdio.h>
Glenn L McGrath66125c82002-12-08 00:54:33 +0000[diff] [blame]12#include "libbb.h"
Glenn L McGrathe9fc7812001-10-25 14:57:14 +0000[diff] [blame]13
14typedef struct file_headers_s {
15 char *name;
16 char *link_name;
17 off_t size;
18 uid_t uid;
19 gid_t gid;
20 mode_t mode;
21 time_t mtime;
22 dev_t device;
23} file_header_t;
24
Glenn L McGrath7ca04f32002-09-25 02:47:48 +0000[diff] [blame]25typedef struct archive_handle_s {
26 /* define if the header and data compenent should processed */
Glenn L McGrath18bbca12002-11-05 01:52:23 +0000[diff] [blame]27 char (*filter)(struct archive_handle_s *);
Glenn L McGrath66125c82002-12-08 00:54:33 +0000[diff] [blame]28 llist_t *accept;
29 llist_t *reject;
30 llist_t *passed; /* List of files that have successfully been worked on */
Glenn L McGrathe9fc7812001-10-25 14:57:14 +0000[diff] [blame]31
Glenn L McGrath7ca04f32002-09-25 02:47:48 +0000[diff] [blame]32 /* Contains the processed header entry */
33 file_header_t *file_header;
Glenn L McGrathe9fc7812001-10-25 14:57:14 +0000[diff] [blame]34
Glenn L McGrath7ca04f32002-09-25 02:47:48 +0000[diff] [blame]35 /* process the header component, e.g. tar -t */
36 void (*action_header)(const file_header_t *);
Glenn L McGrathe9fc7812001-10-25 14:57:14 +0000[diff] [blame]37
Glenn L McGrathf235d052003-10-29 03:37:54 +0000[diff] [blame]38 /* process the data component, e.g. extract to filesystem */
Glenn L McGrath7ca04f32002-09-25 02:47:48 +0000[diff] [blame]39 void (*action_data)(struct archive_handle_s *);
Glenn L McGrath18bbca12002-11-05 01:52:23 +0000[diff] [blame]40
41 /* How to process any sub archive, e.g. get_header_tar_gz */
Glenn L McGrath7ca04f32002-09-25 02:47:48 +0000[diff] [blame]42 char (*action_data_subarchive)(struct archive_handle_s *);
43
44 /* Contains the handle to a sub archive */
45 struct archive_handle_s *sub_archive;
46
47 /* The raw stream as read from disk or stdin */
48 int src_fd;
49
50 /* Count the number of bytes processed */
51 off_t offset;
52
Glenn L McGrath237ae422002-11-03 14:05:15 +0000[diff] [blame]53 /* Function that reads data: read or read_bz */
54 ssize_t (*read)(int fd, void *buf, size_t count);
55
56 /* Function that skips data: read_by_char or read_by_skip */
57 void (*seek)(const struct archive_handle_s *archive_handle, const unsigned int amount);
58
Glenn L McGrathf235d052003-10-29 03:37:54 +0000[diff] [blame]59 /* Temporary storage */
Glenn L McGrath61b79042002-10-19 10:40:55 +0000[diff] [blame]60 char *buffer;
61
Glenn L McGrath7ca04f32002-09-25 02:47:48 +0000[diff] [blame]62 /* Misc. stuff */
63 unsigned char flags;
64
65} archive_handle_t;
66
67extern archive_handle_t *init_handle(void);
68
Glenn L McGrath18bbca12002-11-05 01:52:23 +0000[diff] [blame]69extern char filter_accept_all(archive_handle_t *archive_handle);
70extern char filter_accept_list(archive_handle_t *archive_handle);
71extern char filter_accept_list_reassign(archive_handle_t *archive_handle);
72extern char filter_accept_reject_list(archive_handle_t *archive_handle);
Glenn L McGrath7ca04f32002-09-25 02:47:48 +0000[diff] [blame]73
74extern void unpack_ar_archive(archive_handle_t *ar_archive);
75
Glenn L McGrath7ca04f32002-09-25 02:47:48 +0000[diff] [blame]76extern void data_skip(archive_handle_t *archive_handle);
77extern void data_extract_all(archive_handle_t *archive_handle);
78extern void data_extract_to_stdout(archive_handle_t *archive_handle);
Glenn L McGrath61b79042002-10-19 10:40:55 +0000[diff] [blame]79extern void data_extract_to_buffer(archive_handle_t *archive_handle);
Glenn L McGrath7ca04f32002-09-25 02:47:48 +0000[diff] [blame]80
81extern void header_skip(const file_header_t *file_header);
82extern void header_list(const file_header_t *file_header);
83extern void header_verbose_list(const file_header_t *file_header);
84
85extern void check_header_gzip(int src_fd);
86extern void check_trailer_gzip(int src_fd);
87
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);
Glenn L McGrath7ca04f32002-09-25 02:47:48 +0000[diff] [blame]92extern char get_header_tar_gz(archive_handle_t *archive_handle);
93
Glenn L McGrath237ae422002-11-03 14:05:15 +0000[diff] [blame]94extern void seek_by_jump(const archive_handle_t *archive_handle, const unsigned int amount);
95extern 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]96
Glenn L McGrath237ae422002-11-03 14:05:15 +0000[diff] [blame]97extern unsigned char archive_xread_char(const archive_handle_t *archive_handle);
98extern ssize_t archive_xread(const archive_handle_t *archive_handle, unsigned char *buf, const size_t count);
99extern void archive_xread_all(const archive_handle_t *archive_handle, void *buf, const size_t count);
100extern ssize_t archive_xread_all_eof(archive_handle_t *archive_handle, unsigned char *buf, size_t count);
101
102extern void data_align(archive_handle_t *archive_handle, const unsigned short boundary);
Glenn L McGrath237ae422002-11-03 14:05:15 +0000[diff] [blame]103extern 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]104extern const llist_t *find_list_entry(const llist_t *list, const char *filename);
Glenn L McGrath237ae422002-11-03 14:05:15 +0000[diff] [blame]105
106extern ssize_t read_bz2(int fd, void *buf, size_t count);
107extern void BZ2_bzReadOpen(int fd, void *unused, int nUnused);
Glenn L McGrath7f2a9532002-11-05 02:56:57 +0000[diff] [blame]108extern void BZ2_bzReadClose(void);
Glenn L McGrath237ae422002-11-03 14:05:15 +0000[diff] [blame]109extern unsigned char uncompressStream(int src_fd, int dst_fd);
110
Glenn L McGrathefe78892002-11-19 21:07:17 +0000[diff] [blame]111extern ssize_t read_gz(int fd, void *buf, size_t count);
112extern void GZ_gzReadOpen(int fd, void *unused, int nUnused);
113extern void GZ_gzReadClose(void);
114extern int inflate(int in, int out);
115
Glenn L McGrath7ca04f32002-09-25 02:47:48 +0000[diff] [blame]116#endif