[821] | 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 |
|
---|
[1765] | 13 | typedef struct file_header_t {
|
---|
[821] | 14 | char *name;
|
---|
[1765] | 15 | char *link_target;
|
---|
[821] | 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 |
|
---|
[1765] | 24 | typedef struct archive_handle_t {
|
---|
| 25 | /* define if the header and data component should be processed */
|
---|
| 26 | char (*filter)(struct archive_handle_t *);
|
---|
[821] | 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 */
|
---|
[1765] | 40 | void (*action_data)(struct archive_handle_t *);
|
---|
[821] | 41 |
|
---|
| 42 | /* How to process any sub archive, e.g. get_header_tar_gz */
|
---|
[1765] | 43 | char (*action_data_subarchive)(struct archive_handle_t *);
|
---|
[821] | 44 |
|
---|
| 45 | /* Contains the handle to a sub archive */
|
---|
[1765] | 46 | struct archive_handle_t *sub_archive;
|
---|
[821] | 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 */
|
---|
[1765] | 55 | void (*seek)(const struct archive_handle_t *archive_handle, const unsigned amount);
|
---|
[821] | 56 |
|
---|
| 57 | /* Temporary storage */
|
---|
| 58 | char *buffer;
|
---|
| 59 |
|
---|
| 60 | /* Flags and misc. stuff */
|
---|
| 61 | unsigned char flags;
|
---|
| 62 |
|
---|
| 63 | } archive_handle_t;
|
---|
| 64 |
|
---|
[1765] | 65 |
|
---|
[821] | 66 | extern archive_handle_t *init_handle(void);
|
---|
| 67 |
|
---|
| 68 | extern char filter_accept_all(archive_handle_t *archive_handle);
|
---|
| 69 | extern char filter_accept_list(archive_handle_t *archive_handle);
|
---|
| 70 | extern char filter_accept_list_reassign(archive_handle_t *archive_handle);
|
---|
| 71 | extern char filter_accept_reject_list(archive_handle_t *archive_handle);
|
---|
| 72 |
|
---|
| 73 | extern void unpack_ar_archive(archive_handle_t *ar_archive);
|
---|
| 74 |
|
---|
| 75 | extern void data_skip(archive_handle_t *archive_handle);
|
---|
| 76 | extern void data_extract_all(archive_handle_t *archive_handle);
|
---|
| 77 | extern void data_extract_to_stdout(archive_handle_t *archive_handle);
|
---|
| 78 | extern void data_extract_to_buffer(archive_handle_t *archive_handle);
|
---|
| 79 |
|
---|
| 80 | extern void header_skip(const file_header_t *file_header);
|
---|
| 81 | extern void header_list(const file_header_t *file_header);
|
---|
| 82 | extern void header_verbose_list(const file_header_t *file_header);
|
---|
| 83 |
|
---|
[1765] | 84 | extern void check_header_gzip_or_die(int src_fd);
|
---|
[821] | 85 |
|
---|
| 86 | extern char get_header_ar(archive_handle_t *archive_handle);
|
---|
| 87 | extern char get_header_cpio(archive_handle_t *archive_handle);
|
---|
| 88 | extern char get_header_tar(archive_handle_t *archive_handle);
|
---|
| 89 | extern char get_header_tar_bz2(archive_handle_t *archive_handle);
|
---|
| 90 | extern char get_header_tar_lzma(archive_handle_t *archive_handle);
|
---|
| 91 | extern char get_header_tar_gz(archive_handle_t *archive_handle);
|
---|
| 92 |
|
---|
[1765] | 93 | extern void seek_by_jump(const archive_handle_t *archive_handle, const unsigned amount);
|
---|
| 94 | extern void seek_by_read(const archive_handle_t *archive_handle, const unsigned amount);
|
---|
[821] | 95 |
|
---|
| 96 | extern ssize_t archive_xread_all_eof(archive_handle_t *archive_handle, unsigned char *buf, size_t count);
|
---|
| 97 |
|
---|
| 98 | extern void data_align(archive_handle_t *archive_handle, const unsigned short boundary);
|
---|
| 99 | extern const llist_t *find_list_entry(const llist_t *list, const char *filename);
|
---|
[1765] | 100 | extern const llist_t *find_list_entry2(const llist_t *list, const char *filename);
|
---|
[821] | 101 |
|
---|
[1765] | 102 | /* A bit of bunzip2 internals are exposed for compressed help support: */
|
---|
| 103 | typedef struct bunzip_data bunzip_data;
|
---|
| 104 | int start_bunzip(bunzip_data **bdp, int in_fd, const unsigned char *inbuf, int len);
|
---|
| 105 | int read_bunzip(bunzip_data *bd, char *outbuf, int len);
|
---|
| 106 | void dealloc_bunzip(bunzip_data *bd);
|
---|
[821] | 107 |
|
---|
[1765] | 108 | typedef struct inflate_unzip_result {
|
---|
| 109 | off_t bytes_out;
|
---|
| 110 | uint32_t crc;
|
---|
| 111 | } inflate_unzip_result;
|
---|
[821] | 112 |
|
---|
[1765] | 113 | extern USE_DESKTOP(long long) int unpack_bz2_stream(int src_fd, int dst_fd);
|
---|
| 114 | extern USE_DESKTOP(long long) int inflate_unzip(inflate_unzip_result *res, unsigned bufsize, int src_fd, int dst_fd);
|
---|
| 115 | extern USE_DESKTOP(long long) int unpack_gz_stream(int src_fd, int dst_fd);
|
---|
| 116 | extern USE_DESKTOP(long long) int unpack_lzma_stream(int src_fd, int dst_fd);
|
---|
[821] | 117 |
|
---|
[1765] | 118 | #if BB_MMU
|
---|
| 119 | extern 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
|
---|
| 123 | extern 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__)
|
---|
[821] | 125 | #endif
|
---|
[1765] | 126 |
|
---|
| 127 | #endif
|
---|