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116 lines
4.0 KiB
C
116 lines
4.0 KiB
C
#ifndef __UNARCHIVE_H__
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#define __UNARCHIVE_H__
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#define ARCHIVE_PRESERVE_DATE 1
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#define ARCHIVE_CREATE_LEADING_DIRS 2
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#define ARCHIVE_EXTRACT_UNCONDITIONAL 4
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#define ARCHIVE_EXTRACT_QUIET 8
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#include <sys/types.h>
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#include <stdio.h>
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typedef struct file_headers_s {
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char *name;
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char *link_name;
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off_t size;
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uid_t uid;
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gid_t gid;
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mode_t mode;
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time_t mtime;
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dev_t device;
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} file_header_t;
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typedef struct llist_s {
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const char *data;
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const struct llist_s *link;
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} llist_t;
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typedef struct archive_handle_s {
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/* define if the header and data compenent should processed */
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char (*filter)(struct archive_handle_s *);
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const llist_t *accept;
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const llist_t *reject;
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const llist_t *passed; /* List of files that have successfully been worked on */
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/* Contains the processed header entry */
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file_header_t *file_header;
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/* process the header component, e.g. tar -t */
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void (*action_header)(const file_header_t *);
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/* process the data componenet, e.g. extract to filesystem */
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void (*action_data)(struct archive_handle_s *);
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/* How to process any sub archive, e.g. get_header_tar_gz */
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char (*action_data_subarchive)(struct archive_handle_s *);
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/* Contains the handle to a sub archive */
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struct archive_handle_s *sub_archive;
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/* The raw stream as read from disk or stdin */
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int src_fd;
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/* Count the number of bytes processed */
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off_t offset;
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/* Function that reads data: read or read_bz */
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ssize_t (*read)(int fd, void *buf, size_t count);
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/* Function that skips data: read_by_char or read_by_skip */
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void (*seek)(const struct archive_handle_s *archive_handle, const unsigned int amount);
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/* Temperary storage */
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char *buffer;
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/* Misc. stuff */
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unsigned char flags;
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} archive_handle_t;
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extern archive_handle_t *init_handle(void);
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extern char filter_accept_all(archive_handle_t *archive_handle);
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extern char filter_accept_list(archive_handle_t *archive_handle);
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extern char filter_accept_list_reassign(archive_handle_t *archive_handle);
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extern char filter_accept_reject_list(archive_handle_t *archive_handle);
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extern void unpack_ar_archive(archive_handle_t *ar_archive);
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extern void data_skip(archive_handle_t *archive_handle);
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extern void data_extract_all(archive_handle_t *archive_handle);
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extern void data_extract_to_stdout(archive_handle_t *archive_handle);
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extern void data_extract_to_buffer(archive_handle_t *archive_handle);
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extern void header_skip(const file_header_t *file_header);
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extern void header_list(const file_header_t *file_header);
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extern void header_verbose_list(const file_header_t *file_header);
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extern void check_header_gzip(int src_fd);
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extern void check_trailer_gzip(int src_fd);
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extern char get_header_ar(archive_handle_t *archive_handle);
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extern char get_header_tar(archive_handle_t *archive_handle);
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extern char get_header_tar_bz2(archive_handle_t *archive_handle);
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extern char get_header_tar_gz(archive_handle_t *archive_handle);
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extern void seek_by_jump(const archive_handle_t *archive_handle, const unsigned int amount);
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extern void seek_by_char(const archive_handle_t *archive_handle, const unsigned int amount);
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extern unsigned char archive_xread_char(const archive_handle_t *archive_handle);
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extern ssize_t archive_xread(const archive_handle_t *archive_handle, unsigned char *buf, const size_t count);
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extern void archive_xread_all(const archive_handle_t *archive_handle, void *buf, const size_t count);
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extern ssize_t archive_xread_all_eof(archive_handle_t *archive_handle, unsigned char *buf, size_t count);
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extern void data_align(archive_handle_t *archive_handle, const unsigned short boundary);
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extern const llist_t *add_to_list(const llist_t *old_head, const char *new_item);
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extern void archive_copy_file(const archive_handle_t *archive_handle, const int dst_fd);
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extern const llist_t *find_list_entry(const llist_t *list, const char *filename);
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extern ssize_t read_bz2(int fd, void *buf, size_t count);
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extern void BZ2_bzReadOpen(int fd, void *unused, int nUnused);
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extern void BZ2_bzReadClose(void);
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extern unsigned char uncompressStream(int src_fd, int dst_fd);
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#endif
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