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 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 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 int uncompressStream(int src_fd, int dst_fd);