Contents of /trunk/mkinitrd-magellan/busybox/include/unarchive.h
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Revision 984 -
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Sun May 30 11:32:42 2010 UTC (14 years ago) by niro
File MIME type: text/plain
File size: 6160 byte(s)
Sun May 30 11:32:42 2010 UTC (14 years ago) by niro
File MIME type: text/plain
File size: 6160 byte(s)
-updated to busybox-1.16.1 and enabled blkid/uuid support in default config
1 | /* vi: set sw=4 ts=4: */ |
2 | #ifndef UNARCHIVE_H |
3 | #define UNARCHIVE_H 1 |
4 | |
5 | PUSH_AND_SET_FUNCTION_VISIBILITY_TO_HIDDEN |
6 | |
7 | typedef struct file_header_t { |
8 | char *name; |
9 | char *link_target; |
10 | #if ENABLE_FEATURE_TAR_UNAME_GNAME |
11 | char *tar__uname; |
12 | char *tar__gname; |
13 | #endif |
14 | off_t size; |
15 | uid_t uid; |
16 | gid_t gid; |
17 | mode_t mode; |
18 | time_t mtime; |
19 | dev_t device; |
20 | } file_header_t; |
21 | |
22 | struct hardlinks_t; |
23 | |
24 | typedef struct archive_handle_t { |
25 | /* Flags. 1st since it is most used member */ |
26 | unsigned ah_flags; |
27 | |
28 | /* The raw stream as read from disk or stdin */ |
29 | int src_fd; |
30 | |
31 | /* Define if the header and data component should be processed */ |
32 | char FAST_FUNC (*filter)(struct archive_handle_t *); |
33 | /* List of files that have been accepted */ |
34 | llist_t *accept; |
35 | /* List of files that have been rejected */ |
36 | llist_t *reject; |
37 | /* List of files that have successfully been worked on */ |
38 | llist_t *passed; |
39 | |
40 | /* Currently processed file's header */ |
41 | file_header_t *file_header; |
42 | |
43 | /* Process the header component, e.g. tar -t */ |
44 | void FAST_FUNC (*action_header)(const file_header_t *); |
45 | |
46 | /* Process the data component, e.g. extract to filesystem */ |
47 | void FAST_FUNC (*action_data)(struct archive_handle_t *); |
48 | |
49 | /* Function that skips data */ |
50 | void FAST_FUNC (*seek)(int fd, off_t amount); |
51 | |
52 | /* Count processed bytes */ |
53 | off_t offset; |
54 | |
55 | /* Archiver specific. Can make it a union if it ever gets big */ |
56 | #if ENABLE_TAR || ENABLE_DPKG || ENABLE_DPKG_DEB |
57 | smallint tar__end; |
58 | # if ENABLE_FEATURE_TAR_GNU_EXTENSIONS |
59 | char* tar__longname; |
60 | char* tar__linkname; |
61 | # endif |
62 | #endif |
63 | #if ENABLE_CPIO || ENABLE_RPM2CPIO || ENABLE_RPM |
64 | uoff_t cpio__blocks; |
65 | struct hardlinks_t *cpio__hardlinks_to_create; |
66 | struct hardlinks_t *cpio__created_hardlinks; |
67 | #endif |
68 | #if ENABLE_DPKG || ENABLE_DPKG_DEB |
69 | /* Temporary storage */ |
70 | char *dpkg__buffer; |
71 | /* How to process any sub archive, e.g. get_header_tar_gz */ |
72 | char FAST_FUNC (*dpkg__action_data_subarchive)(struct archive_handle_t *); |
73 | /* Contains the handle to a sub archive */ |
74 | struct archive_handle_t *dpkg__sub_archive; |
75 | #endif |
76 | } archive_handle_t; |
77 | /* bits in ah_flags */ |
78 | #define ARCHIVE_RESTORE_DATE (1 << 0) |
79 | #define ARCHIVE_CREATE_LEADING_DIRS (1 << 1) |
80 | #define ARCHIVE_UNLINK_OLD (1 << 2) |
81 | #define ARCHIVE_EXTRACT_QUIET (1 << 3) |
82 | #define ARCHIVE_EXTRACT_NEWER (1 << 4) |
83 | #define ARCHIVE_DONT_RESTORE_OWNER (1 << 5) |
84 | #define ARCHIVE_DONT_RESTORE_PERM (1 << 6) |
85 | #define ARCHIVE_NUMERIC_OWNER (1 << 7) |
86 | #define ARCHIVE_O_TRUNC (1 << 8) |
87 | |
88 | |
89 | /* Info struct unpackers can fill out to inform users of thing like |
90 | * timestamps of unpacked files */ |
91 | typedef struct unpack_info_t { |
92 | time_t mtime; |
93 | } unpack_info_t; |
94 | |
95 | extern archive_handle_t *init_handle(void) FAST_FUNC; |
96 | |
97 | extern char filter_accept_all(archive_handle_t *archive_handle) FAST_FUNC; |
98 | extern char filter_accept_list(archive_handle_t *archive_handle) FAST_FUNC; |
99 | extern char filter_accept_list_reassign(archive_handle_t *archive_handle) FAST_FUNC; |
100 | extern char filter_accept_reject_list(archive_handle_t *archive_handle) FAST_FUNC; |
101 | |
102 | extern void unpack_ar_archive(archive_handle_t *ar_archive) FAST_FUNC; |
103 | |
104 | extern void data_skip(archive_handle_t *archive_handle) FAST_FUNC; |
105 | extern void data_extract_all(archive_handle_t *archive_handle) FAST_FUNC; |
106 | extern void data_extract_to_stdout(archive_handle_t *archive_handle) FAST_FUNC; |
107 | |
108 | extern void header_skip(const file_header_t *file_header) FAST_FUNC; |
109 | extern void header_list(const file_header_t *file_header) FAST_FUNC; |
110 | extern void header_verbose_list(const file_header_t *file_header) FAST_FUNC; |
111 | |
112 | extern char get_header_ar(archive_handle_t *archive_handle) FAST_FUNC; |
113 | extern char get_header_cpio(archive_handle_t *archive_handle) FAST_FUNC; |
114 | extern char get_header_tar(archive_handle_t *archive_handle) FAST_FUNC; |
115 | extern char get_header_tar_gz(archive_handle_t *archive_handle) FAST_FUNC; |
116 | extern char get_header_tar_bz2(archive_handle_t *archive_handle) FAST_FUNC; |
117 | extern char get_header_tar_lzma(archive_handle_t *archive_handle) FAST_FUNC; |
118 | |
119 | extern void seek_by_jump(int fd, off_t amount) FAST_FUNC; |
120 | extern void seek_by_read(int fd, off_t amount) FAST_FUNC; |
121 | |
122 | extern void data_align(archive_handle_t *archive_handle, unsigned boundary) FAST_FUNC; |
123 | extern const llist_t *find_list_entry(const llist_t *list, const char *filename) FAST_FUNC; |
124 | extern const llist_t *find_list_entry2(const llist_t *list, const char *filename) FAST_FUNC; |
125 | |
126 | /* A bit of bunzip2 internals are exposed for compressed help support: */ |
127 | typedef struct bunzip_data bunzip_data; |
128 | int start_bunzip(bunzip_data **bdp, int in_fd, const unsigned char *inbuf, int len) FAST_FUNC; |
129 | int read_bunzip(bunzip_data *bd, char *outbuf, int len) FAST_FUNC; |
130 | void dealloc_bunzip(bunzip_data *bd) FAST_FUNC; |
131 | |
132 | typedef struct inflate_unzip_result { |
133 | off_t bytes_out; |
134 | uint32_t crc; |
135 | } inflate_unzip_result; |
136 | |
137 | IF_DESKTOP(long long) int inflate_unzip(inflate_unzip_result *res, off_t compr_size, int src_fd, int dst_fd) FAST_FUNC; |
138 | /* lzma unpacker takes .lzma stream from offset 0 */ |
139 | IF_DESKTOP(long long) int unpack_lzma_stream(int src_fd, int dst_fd) FAST_FUNC; |
140 | /* the rest wants 2 first bytes already skipped by the caller */ |
141 | IF_DESKTOP(long long) int unpack_bz2_stream(int src_fd, int dst_fd) FAST_FUNC; |
142 | IF_DESKTOP(long long) int unpack_gz_stream(int src_fd, int dst_fd) FAST_FUNC; |
143 | IF_DESKTOP(long long) int unpack_gz_stream_with_info(int src_fd, int dst_fd, unpack_info_t *info) FAST_FUNC; |
144 | IF_DESKTOP(long long) int unpack_Z_stream(int fd_in, int fd_out) FAST_FUNC; |
145 | /* wrapper which checks first two bytes to be "BZ" */ |
146 | IF_DESKTOP(long long) int unpack_bz2_stream_prime(int src_fd, int dst_fd) FAST_FUNC; |
147 | |
148 | int bbunpack(char **argv, |
149 | char* (*make_new_name)(char *filename), |
150 | IF_DESKTOP(long long) int (*unpacker)(unpack_info_t *info)) FAST_FUNC; |
151 | |
152 | #if BB_MMU |
153 | void open_transformer(int fd, |
154 | IF_DESKTOP(long long) int FAST_FUNC (*transformer)(int src_fd, int dst_fd)) FAST_FUNC; |
155 | #define open_transformer(fd, transformer, transform_prog) open_transformer(fd, transformer) |
156 | #else |
157 | void open_transformer(int src_fd, const char *transform_prog) FAST_FUNC; |
158 | #define open_transformer(fd, transformer, transform_prog) open_transformer(fd, transform_prog) |
159 | #endif |
160 | |
161 | POP_SAVED_FUNCTION_VISIBILITY |
162 | |
163 | #endif |