| #ifndef __UNARCHIVE_H__ |
| #define __UNARCHIVE_H__ |
| |
| #define ARCHIVE_PRESERVE_DATE 1 |
| #define ARCHIVE_CREATE_LEADING_DIRS 2 |
| #define ARCHIVE_EXTRACT_UNCONDITIONAL 4 |
| #define ARCHIVE_EXTRACT_QUIET 8 |
| |
| #include <sys/types.h> |
| |
| #include <stdio.h> |
| |
| typedef struct file_headers_s { |
| char *name; |
| char *link_name; |
| off_t size; |
| uid_t uid; |
| gid_t gid; |
| mode_t mode; |
| time_t mtime; |
| dev_t device; |
| } file_header_t; |
| |
| typedef struct llist_s { |
| const char *data; |
| const struct llist_s *link; |
| } llist_t; |
| |
| typedef struct archive_handle_s { |
| /* define if the header and data compenent should processed */ |
| char (*filter)(const struct archive_handle_s *); |
| const llist_t *accept; |
| const llist_t *reject; |
| const llist_t *passed; /* List of files that have successfully been worked on */ |
| |
| /* Contains the processed header entry */ |
| file_header_t *file_header; |
| |
| /* process the header component, e.g. tar -t */ |
| void (*action_header)(const file_header_t *); |
| |
| /* process the data componenet, e.g. extract to filesystem */ |
| void (*action_data)(struct archive_handle_s *); |
| char (*action_data_subarchive)(struct archive_handle_s *); |
| |
| /* Contains the handle to a sub archive */ |
| struct archive_handle_s *sub_archive; |
| |
| /* The raw stream as read from disk or stdin */ |
| int src_fd; |
| |
| /* Count the number of bytes processed */ |
| off_t offset; |
| |
| /* Function that reads data: read or read_bz */ |
| ssize_t (*read)(int fd, void *buf, size_t count); |
| |
| /* Function that skips data: read_by_char or read_by_skip */ |
| void (*seek)(const struct archive_handle_s *archive_handle, const unsigned int amount); |
| |
| /* Temperary storage */ |
| char *buffer; |
| |
| /* Misc. stuff */ |
| unsigned char flags; |
| |
| } archive_handle_t; |
| |
| extern archive_handle_t *init_handle(void); |
| |
| extern char filter_accept_all(const archive_handle_t *archive_handle); |
| extern char filter_accept_list(const archive_handle_t *archive_handle); |
| extern char filter_accept_reject_list(const archive_handle_t *archive_handle); |
| |
| extern void unpack_ar_archive(archive_handle_t *ar_archive); |
| |
| extern void data_skip(archive_handle_t *archive_handle); |
| extern void data_extract_all(archive_handle_t *archive_handle); |
| extern void data_extract_to_stdout(archive_handle_t *archive_handle); |
| extern void data_extract_to_buffer(archive_handle_t *archive_handle); |
| |
| extern void header_skip(const file_header_t *file_header); |
| extern void header_list(const file_header_t *file_header); |
| extern void header_verbose_list(const file_header_t *file_header); |
| |
| extern void check_header_gzip(int src_fd); |
| extern void check_trailer_gzip(int src_fd); |
| |
| extern char get_header_ar(archive_handle_t *archive_handle); |
| extern char get_header_tar(archive_handle_t *archive_handle); |
| extern char get_header_tar_gz(archive_handle_t *archive_handle); |
| |
| extern void seek_by_jump(const archive_handle_t *archive_handle, const unsigned int amount); |
| extern void seek_by_char(const archive_handle_t *archive_handle, const unsigned int amount); |
| |
| extern unsigned char archive_xread_char(const archive_handle_t *archive_handle); |
| extern ssize_t archive_xread(const archive_handle_t *archive_handle, unsigned char *buf, const size_t count); |
| extern void archive_xread_all(const archive_handle_t *archive_handle, void *buf, const size_t count); |
| extern ssize_t archive_xread_all_eof(archive_handle_t *archive_handle, unsigned char *buf, size_t count); |
| |
| extern void data_align(archive_handle_t *archive_handle, const unsigned short boundary); |
| extern const llist_t *add_to_list(const llist_t *old_head, const char *new_item); |
| extern void archive_copy_file(const archive_handle_t *archive_handle, const int dst_fd); |
| extern const llist_t *find_list_entry(const llist_t *list, const char *filename); |
| |
| extern ssize_t read_bz2(int fd, void *buf, size_t count); |
| extern void BZ2_bzReadOpen(int fd, void *unused, int nUnused); |
| extern unsigned char uncompressStream(int src_fd, int dst_fd); |
| |
| #endif |