Contents of /trunk/mkinitrd-magellan/busybox/include/unarchive.h
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Fri Apr 24 18:33:46 2009 UTC (15 years, 5 months ago) by niro
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File size: 5978 byte(s)
Fri Apr 24 18:33:46 2009 UTC (15 years, 5 months ago) by niro
File MIME type: text/plain
File size: 5978 byte(s)
-updated to busybox-1.13.4
1 | /* vi: set sw=4 ts=4: */ |
2 | #ifndef __UNARCHIVE_H__ |
3 | #define __UNARCHIVE_H__ |
4 | |
5 | #if __GNUC_PREREQ(4,1) |
6 | # pragma GCC visibility push(hidden) |
7 | #endif |
8 | |
9 | #define ARCHIVE_PRESERVE_DATE 1 |
10 | #define ARCHIVE_CREATE_LEADING_DIRS 2 |
11 | #define ARCHIVE_EXTRACT_UNCONDITIONAL 4 |
12 | #define ARCHIVE_EXTRACT_QUIET 8 |
13 | #define ARCHIVE_EXTRACT_NEWER 16 |
14 | #define ARCHIVE_NOPRESERVE_OWN 32 |
15 | #define ARCHIVE_NOPRESERVE_PERM 64 |
16 | |
17 | typedef struct file_header_t { |
18 | char *name; |
19 | char *link_target; |
20 | #if ENABLE_FEATURE_TAR_UNAME_GNAME |
21 | char *uname; |
22 | char *gname; |
23 | #endif |
24 | off_t size; |
25 | uid_t uid; |
26 | gid_t gid; |
27 | mode_t mode; |
28 | time_t mtime; |
29 | dev_t device; |
30 | } file_header_t; |
31 | |
32 | typedef struct archive_handle_t { |
33 | /* Define if the header and data component should be processed */ |
34 | char FAST_FUNC (*filter)(struct archive_handle_t *); |
35 | llist_t *accept; |
36 | /* List of files that have been rejected */ |
37 | llist_t *reject; |
38 | /* List of files that have successfully been worked on */ |
39 | llist_t *passed; |
40 | |
41 | /* Contains the processed header entry */ |
42 | file_header_t *file_header; |
43 | |
44 | /* Process the header component, e.g. tar -t */ |
45 | void FAST_FUNC (*action_header)(const file_header_t *); |
46 | |
47 | /* Process the data component, e.g. extract to filesystem */ |
48 | void FAST_FUNC (*action_data)(struct archive_handle_t *); |
49 | |
50 | #if ENABLE_DPKG || ENABLE_DPKG_DEB |
51 | /* "subarchive" is used only by dpkg[-deb] applets */ |
52 | /* How to process any sub archive, e.g. get_header_tar_gz */ |
53 | char FAST_FUNC (*action_data_subarchive)(struct archive_handle_t *); |
54 | /* Contains the handle to a sub archive */ |
55 | struct archive_handle_t *sub_archive; |
56 | #endif |
57 | |
58 | /* The raw stream as read from disk or stdin */ |
59 | int src_fd; |
60 | |
61 | /* Count the number of bytes processed */ |
62 | off_t offset; |
63 | |
64 | /* Function that skips data: read_by_char or read_by_skip */ |
65 | void FAST_FUNC (*seek)(const struct archive_handle_t *archive_handle, const unsigned amount); |
66 | |
67 | /* Temporary storage */ |
68 | char *buffer; |
69 | |
70 | /* Flags and misc. stuff */ |
71 | unsigned char ah_flags; |
72 | |
73 | /* "Private" storage for archivers */ |
74 | // unsigned char ah_priv_inited; |
75 | void *ah_priv[8]; |
76 | |
77 | } archive_handle_t; |
78 | |
79 | |
80 | /* Info struct unpackers can fill out to inform users of thing like |
81 | * timestamps of unpacked files */ |
82 | typedef struct unpack_info_t { |
83 | time_t mtime; |
84 | } unpack_info_t; |
85 | |
86 | extern archive_handle_t *init_handle(void) FAST_FUNC; |
87 | |
88 | extern char filter_accept_all(archive_handle_t *archive_handle) FAST_FUNC; |
89 | extern char filter_accept_list(archive_handle_t *archive_handle) FAST_FUNC; |
90 | extern char filter_accept_list_reassign(archive_handle_t *archive_handle) FAST_FUNC; |
91 | extern char filter_accept_reject_list(archive_handle_t *archive_handle) FAST_FUNC; |
92 | |
93 | extern void unpack_ar_archive(archive_handle_t *ar_archive) FAST_FUNC; |
94 | |
95 | extern void data_skip(archive_handle_t *archive_handle) FAST_FUNC; |
96 | extern void data_extract_all(archive_handle_t *archive_handle) FAST_FUNC; |
97 | extern void data_extract_to_stdout(archive_handle_t *archive_handle) FAST_FUNC; |
98 | extern void data_extract_to_buffer(archive_handle_t *archive_handle) FAST_FUNC; |
99 | |
100 | extern void header_skip(const file_header_t *file_header) FAST_FUNC; |
101 | extern void header_list(const file_header_t *file_header) FAST_FUNC; |
102 | extern void header_verbose_list(const file_header_t *file_header) FAST_FUNC; |
103 | |
104 | extern char get_header_ar(archive_handle_t *archive_handle) FAST_FUNC; |
105 | extern char get_header_cpio(archive_handle_t *archive_handle) FAST_FUNC; |
106 | extern char get_header_tar(archive_handle_t *archive_handle) FAST_FUNC; |
107 | extern char get_header_tar_gz(archive_handle_t *archive_handle) FAST_FUNC; |
108 | extern char get_header_tar_bz2(archive_handle_t *archive_handle) FAST_FUNC; |
109 | extern char get_header_tar_lzma(archive_handle_t *archive_handle) FAST_FUNC; |
110 | |
111 | extern void seek_by_jump(const archive_handle_t *archive_handle, unsigned amount) FAST_FUNC; |
112 | extern void seek_by_read(const archive_handle_t *archive_handle, unsigned amount) FAST_FUNC; |
113 | |
114 | extern void data_align(archive_handle_t *archive_handle, unsigned boundary) FAST_FUNC; |
115 | extern const llist_t *find_list_entry(const llist_t *list, const char *filename) FAST_FUNC; |
116 | extern const llist_t *find_list_entry2(const llist_t *list, const char *filename) FAST_FUNC; |
117 | |
118 | /* A bit of bunzip2 internals are exposed for compressed help support: */ |
119 | typedef struct bunzip_data bunzip_data; |
120 | int start_bunzip(bunzip_data **bdp, int in_fd, const unsigned char *inbuf, int len) FAST_FUNC; |
121 | int read_bunzip(bunzip_data *bd, char *outbuf, int len) FAST_FUNC; |
122 | void dealloc_bunzip(bunzip_data *bd) FAST_FUNC; |
123 | |
124 | typedef struct inflate_unzip_result { |
125 | off_t bytes_out; |
126 | uint32_t crc; |
127 | } inflate_unzip_result; |
128 | |
129 | USE_DESKTOP(long long) int inflate_unzip(inflate_unzip_result *res, off_t compr_size, int src_fd, int dst_fd) FAST_FUNC; |
130 | /* lzma unpacker takes .lzma stream from offset 0 */ |
131 | USE_DESKTOP(long long) int unpack_lzma_stream(int src_fd, int dst_fd) FAST_FUNC; |
132 | /* the rest wants 2 first bytes already skipped by the caller */ |
133 | USE_DESKTOP(long long) int unpack_bz2_stream(int src_fd, int dst_fd) FAST_FUNC; |
134 | USE_DESKTOP(long long) int unpack_gz_stream(int src_fd, int dst_fd) FAST_FUNC; |
135 | USE_DESKTOP(long long) int unpack_gz_stream_with_info(int src_fd, int dst_fd, unpack_info_t *info) FAST_FUNC; |
136 | USE_DESKTOP(long long) int unpack_Z_stream(int fd_in, int fd_out) FAST_FUNC; |
137 | /* wrapper which checks first two bytes to be "BZ" */ |
138 | USE_DESKTOP(long long) int unpack_bz2_stream_prime(int src_fd, int dst_fd) FAST_FUNC; |
139 | |
140 | int bbunpack(char **argv, |
141 | char* (*make_new_name)(char *filename), |
142 | USE_DESKTOP(long long) int (*unpacker)(unpack_info_t *info)) FAST_FUNC; |
143 | |
144 | #if BB_MMU |
145 | void open_transformer(int fd, |
146 | USE_DESKTOP(long long) int FAST_FUNC (*transformer)(int src_fd, int dst_fd)) FAST_FUNC; |
147 | #define open_transformer(fd, transformer, transform_prog) open_transformer(fd, transformer) |
148 | #else |
149 | void open_transformer(int src_fd, const char *transform_prog) FAST_FUNC; |
150 | #define open_transformer(fd, transformer, transform_prog) open_transformer(fd, transform_prog) |
151 | #endif |
152 | |
153 | #if __GNUC_PREREQ(4,1) |
154 | # pragma GCC visibility pop |
155 | #endif |
156 | |
157 | #endif |