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 archive_handle_s {
25 /* define if the header and data compenent should processed */
26 char (*filter)(struct archive_handle_s *);
29 llist_t *passed; /* List of files that have successfully been worked on */
31 /* Contains the processed header entry */
32 file_header_t *file_header;
34 /* process the header component, e.g. tar -t */
35 void (*action_header)(const file_header_t *);
37 /* process the data componenet, e.g. extract to filesystem */
38 void (*action_data)(struct archive_handle_s *);
40 /* How to process any sub archive, e.g. get_header_tar_gz */
41 char (*action_data_subarchive)(struct archive_handle_s *);
43 /* Contains the handle to a sub archive */
44 struct archive_handle_s *sub_archive;
46 /* The raw stream as read from disk or stdin */
49 /* Count the number of bytes processed */
52 /* Function that reads data: read or read_bz */
53 ssize_t (*read)(int fd, void *buf, size_t count);
55 /* Function that skips data: read_by_char or read_by_skip */
56 void (*seek)(const struct archive_handle_s *archive_handle, const unsigned int amount);
58 /* Temperary storage */
66 extern archive_handle_t *init_handle(void);
68 extern char filter_accept_all(archive_handle_t *archive_handle);
69 extern char filter_accept_list(archive_handle_t *archive_handle);
70 extern char filter_accept_list_reassign(archive_handle_t *archive_handle);
71 extern char filter_accept_reject_list(archive_handle_t *archive_handle);
73 extern void unpack_ar_archive(archive_handle_t *ar_archive);
75 extern void data_skip(archive_handle_t *archive_handle);
76 extern void data_extract_all(archive_handle_t *archive_handle);
77 extern void data_extract_to_stdout(archive_handle_t *archive_handle);
78 extern void data_extract_to_buffer(archive_handle_t *archive_handle);
80 extern void header_skip(const file_header_t *file_header);
81 extern void header_list(const file_header_t *file_header);
82 extern void header_verbose_list(const file_header_t *file_header);
84 extern void check_header_gzip(int src_fd);
85 extern void check_trailer_gzip(int src_fd);
87 extern char get_header_ar(archive_handle_t *archive_handle);
88 extern char get_header_cpio(archive_handle_t *archive_handle);
89 extern char get_header_tar(archive_handle_t *archive_handle);
90 extern char get_header_tar_bz2(archive_handle_t *archive_handle);
91 extern char get_header_tar_gz(archive_handle_t *archive_handle);
93 extern void seek_by_jump(const archive_handle_t *archive_handle, const unsigned int amount);
94 extern void seek_by_char(const archive_handle_t *archive_handle, const unsigned int amount);
96 extern unsigned char archive_xread_char(const archive_handle_t *archive_handle);
97 extern ssize_t archive_xread(const archive_handle_t *archive_handle, unsigned char *buf, const size_t count);
98 extern void archive_xread_all(const archive_handle_t *archive_handle, void *buf, const size_t count);
99 extern ssize_t archive_xread_all_eof(archive_handle_t *archive_handle, unsigned char *buf, size_t count);
101 extern void data_align(archive_handle_t *archive_handle, const unsigned short boundary);
102 extern void archive_copy_file(const archive_handle_t *archive_handle, const int dst_fd);
103 extern const llist_t *find_list_entry(const llist_t *list, const char *filename);
105 extern ssize_t read_bz2(int fd, void *buf, size_t count);
106 extern void BZ2_bzReadOpen(int fd, void *unused, int nUnused);
107 extern void BZ2_bzReadClose(void);
108 extern unsigned char uncompressStream(int src_fd, int dst_fd);
110 extern ssize_t read_gz(int fd, void *buf, size_t count);
111 extern void GZ_gzReadOpen(int fd, void *unused, int nUnused);
112 extern void GZ_gzReadClose(void);
113 extern int inflate(int in, int out);