#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> typedef struct gunzip_s { unsigned short buffer_count; unsigned char *buffer; unsigned int crc; unsigned int count; } gunzip_t; 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 llist_t *, const llist_t *, const char *); const llist_t *accept; const llist_t *reject; /* 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; /* Misc. stuff */ unsigned char flags; } archive_handle_t; extern archive_handle_t *init_handle(void); extern char filter_accept_all(const llist_t *accept_list, const llist_t *reject_list, const char *key); extern char filter_accept_list(const llist_t *accept_list, const llist_t *reject_list, const char *key); extern char filter_accept_reject_list(const llist_t *accept_list, const llist_t *reject_list, const char *key); extern void unpack_ar_archive(archive_handle_t *ar_archive); extern void data_gunzip(archive_handle_t *archive_handle); 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 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_sub_file(int src_fd, unsigned int amount); extern const unsigned short data_align(const int src_fd, const unsigned int offset, const unsigned short align_to); extern const llist_t *add_to_list(const llist_t *old_head, const char *new_item); extern int copy_file_chunk_fd(int src_fd, int dst_fd, unsigned long long chunksize); #endif