source: MondoRescue/branches/2.2.9/mindi-busybox/include/unarchive.h@ 2142

Last change on this file since 2142 was 1765, checked in by Bruno Cornec, 16 years ago

Update to busybox 1.7.2
File size: 4.6 KB
Line 
1/* vi: set sw=4 ts=4: */
2#ifndef __UNARCHIVE_H__
3#define __UNARCHIVE_H__
4
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
12
13typedef struct file_header_t {
14 char *name;
15 char *link_target;
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
24typedef struct archive_handle_t {
25 /* define if the header and data component should be processed */
26 char (*filter)(struct archive_handle_t *);
27 llist_t *accept;
28 /* List of files that have been rejected */
29 llist_t *reject;
30 /* List of files that have successfully been worked on */
31 llist_t *passed;
32
33 /* Contains the processed header entry */
34 file_header_t *file_header;
35
36 /* process the header component, e.g. tar -t */
37 void (*action_header)(const file_header_t *);
38
39 /* process the data component, e.g. extract to filesystem */
40 void (*action_data)(struct archive_handle_t *);
41
42 /* How to process any sub archive, e.g. get_header_tar_gz */
43 char (*action_data_subarchive)(struct archive_handle_t *);
44
45 /* Contains the handle to a sub archive */
46 struct archive_handle_t *sub_archive;
47
48 /* The raw stream as read from disk or stdin */
49 int src_fd;
50
51 /* Count the number of bytes processed */
52 off_t offset;
53
54 /* Function that skips data: read_by_char or read_by_skip */
55 void (*seek)(const struct archive_handle_t *archive_handle, const unsigned amount);
56
57 /* Temporary storage */
58 char *buffer;
59
60 /* Flags and misc. stuff */
61 unsigned char flags;
62
63} archive_handle_t;
64
65
66extern archive_handle_t *init_handle(void);
67
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);
72
73extern void unpack_ar_archive(archive_handle_t *ar_archive);
74
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);
78extern void data_extract_to_buffer(archive_handle_t *archive_handle);
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_or_die(int src_fd);
85
86extern char get_header_ar(archive_handle_t *archive_handle);
87extern char get_header_cpio(archive_handle_t *archive_handle);
88extern char get_header_tar(archive_handle_t *archive_handle);
89extern char get_header_tar_bz2(archive_handle_t *archive_handle);
90extern char get_header_tar_lzma(archive_handle_t *archive_handle);
91extern char get_header_tar_gz(archive_handle_t *archive_handle);
92
93extern void seek_by_jump(const archive_handle_t *archive_handle, const unsigned amount);
94extern void seek_by_read(const archive_handle_t *archive_handle, const unsigned amount);
95
96extern ssize_t archive_xread_all_eof(archive_handle_t *archive_handle, unsigned char *buf, size_t count);
97
98extern void data_align(archive_handle_t *archive_handle, const unsigned short boundary);
99extern const llist_t *find_list_entry(const llist_t *list, const char *filename);
100extern const llist_t *find_list_entry2(const llist_t *list, const char *filename);
101
102/* A bit of bunzip2 internals are exposed for compressed help support: */
103typedef struct bunzip_data bunzip_data;
104int start_bunzip(bunzip_data **bdp, int in_fd, const unsigned char *inbuf, int len);
105int read_bunzip(bunzip_data *bd, char *outbuf, int len);
106void dealloc_bunzip(bunzip_data *bd);
107
108typedef struct inflate_unzip_result {
109 off_t bytes_out;
110 uint32_t crc;
111} inflate_unzip_result;
112
113extern USE_DESKTOP(long long) int unpack_bz2_stream(int src_fd, int dst_fd);
114extern USE_DESKTOP(long long) int inflate_unzip(inflate_unzip_result *res, unsigned bufsize, int src_fd, int dst_fd);
115extern USE_DESKTOP(long long) int unpack_gz_stream(int src_fd, int dst_fd);
116extern USE_DESKTOP(long long) int unpack_lzma_stream(int src_fd, int dst_fd);
117
118#if BB_MMU
119extern int open_transformer(int src_fd,
120 USE_DESKTOP(long long) int (*transformer)(int src_fd, int dst_fd));
121#define open_transformer(src_fd, transformer, transform_prog, ...) open_transformer(src_fd, transformer)
122#else
123extern int open_transformer(int src_fd, const char *transform_prog, ...);
124#define open_transformer(src_fd, transformer, transform_prog, ...) open_transformer(src_fd, transform_prog, __VA_ARGS__)
125#endif
126
127#endif
Note: See TracBrowser for help on using the repository browser.