1 #ifndef __UNARCHIVE_H__
2 #define __UNARCHIVE_H__
4 #define ARCHIVE_PRESERVE_DATE 1
5 #define ARCHIVE_CREATE_LEADING_DIRS 2
6 #define ARCHIVE_EXTRACT_UNCONDITIONAL 4
7 #define ARCHIVE_EXTRACT_QUIET 8
13 typedef struct file_headers_s {
24 typedef struct llist_s {
26 const struct llist_s *link;
29 typedef struct archive_handle_s {
30 /* define if the header and data compenent should processed */
31 char (*filter)(struct archive_handle_s *);
32 const llist_t *accept;
33 const llist_t *reject;
34 const llist_t *passed; /* List of files that have successfully been worked on */
36 /* Contains the processed header entry */
37 file_header_t *file_header;
39 /* process the header component, e.g. tar -t */
40 void (*action_header)(const file_header_t *);
42 /* process the data componenet, e.g. extract to filesystem */
43 void (*action_data)(struct archive_handle_s *);
45 /* How to process any sub archive, e.g. get_header_tar_gz */
46 char (*action_data_subarchive)(struct archive_handle_s *);
48 /* Contains the handle to a sub archive */
49 struct archive_handle_s *sub_archive;
51 /* The raw stream as read from disk or stdin */
54 /* Count the number of bytes processed */
57 /* Function that reads data: read or read_bz */
58 ssize_t (*read)(int fd, void *buf, size_t count);
60 /* Function that skips data: read_by_char or read_by_skip */
61 void (*seek)(const struct archive_handle_s *archive_handle, const unsigned int amount);
63 /* Temperary storage */
71 extern archive_handle_t *init_handle(void);
73 extern char filter_accept_all(archive_handle_t *archive_handle);
74 extern char filter_accept_list(archive_handle_t *archive_handle);
75 extern char filter_accept_list_reassign(archive_handle_t *archive_handle);
76 extern char filter_accept_reject_list(archive_handle_t *archive_handle);
78 extern void unpack_ar_archive(archive_handle_t *ar_archive);
80 extern void data_skip(archive_handle_t *archive_handle);
81 extern void data_extract_all(archive_handle_t *archive_handle);
82 extern void data_extract_to_stdout(archive_handle_t *archive_handle);
83 extern void data_extract_to_buffer(archive_handle_t *archive_handle);
85 extern void header_skip(const file_header_t *file_header);
86 extern void header_list(const file_header_t *file_header);
87 extern void header_verbose_list(const file_header_t *file_header);
89 extern void check_header_gzip(int src_fd);
90 extern void check_trailer_gzip(int src_fd);
92 extern char get_header_ar(archive_handle_t *archive_handle);
93 extern char get_header_tar(archive_handle_t *archive_handle);
94 extern char get_header_tar_gz(archive_handle_t *archive_handle);
96 extern void seek_by_jump(const archive_handle_t *archive_handle, const unsigned int amount);
97 extern void seek_by_char(const archive_handle_t *archive_handle, const unsigned int amount);
99 extern unsigned char archive_xread_char(const archive_handle_t *archive_handle);
100 extern ssize_t archive_xread(const archive_handle_t *archive_handle, unsigned char *buf, const size_t count);
101 extern void archive_xread_all(const archive_handle_t *archive_handle, void *buf, const size_t count);
102 extern ssize_t archive_xread_all_eof(archive_handle_t *archive_handle, unsigned char *buf, size_t count);
104 extern void data_align(archive_handle_t *archive_handle, const unsigned short boundary);
105 extern const llist_t *add_to_list(const llist_t *old_head, const char *new_item);
106 extern void archive_copy_file(const archive_handle_t *archive_handle, const int dst_fd);
107 extern const llist_t *find_list_entry(const llist_t *list, const char *filename);
109 extern ssize_t read_bz2(int fd, void *buf, size_t count);
110 extern void BZ2_bzReadOpen(int fd, void *unused, int nUnused);
111 extern unsigned char uncompressStream(int src_fd, int dst_fd);