1 /* vi: set sw=4 ts=4: */
2 #ifndef __UNARCHIVE_H__
3 #define __UNARCHIVE_H__
5 #define ARCHIVE_PRESERVE_DATE 1
6 #define ARCHIVE_CREATE_LEADING_DIRS 2
7 #define ARCHIVE_EXTRACT_UNCONDITIONAL 4
8 #define ARCHIVE_EXTRACT_QUIET 8
9 #define ARCHIVE_EXTRACT_NEWER 16
10 #define ARCHIVE_NOPRESERVE_OWN 32
11 #define ARCHIVE_NOPRESERVE_PERM 64
15 typedef struct file_headers_s {
26 typedef struct archive_handle_s {
27 /* define if the header and data component should be processed */
28 char (*filter)(struct archive_handle_s *);
30 /* List of files that have been rejected */
32 /* List of files that have successfully been worked on */
35 /* Contains the processed header entry */
36 file_header_t *file_header;
38 /* process the header component, e.g. tar -t */
39 void (*action_header)(const file_header_t *);
41 /* process the data component, e.g. extract to filesystem */
42 void (*action_data)(struct archive_handle_s *);
44 /* How to process any sub archive, e.g. get_header_tar_gz */
45 char (*action_data_subarchive)(struct archive_handle_s *);
47 /* Contains the handle to a sub archive */
48 struct archive_handle_s *sub_archive;
50 /* The raw stream as read from disk or stdin */
53 /* Count the number of bytes processed */
56 /* Function that skips data: read_by_char or read_by_skip */
57 void (*seek)(const struct archive_handle_s *archive_handle, const unsigned int amount);
59 /* Temporary storage */
62 /* Flags and misc. stuff */
68 extern uint32_t gunzip_crc;
69 extern off_t gunzip_bytes_out;
72 extern archive_handle_t *init_handle(void);
74 extern char filter_accept_all(archive_handle_t *archive_handle);
75 extern char filter_accept_list(archive_handle_t *archive_handle);
76 extern char filter_accept_list_reassign(archive_handle_t *archive_handle);
77 extern char filter_accept_reject_list(archive_handle_t *archive_handle);
79 extern void unpack_ar_archive(archive_handle_t *ar_archive);
81 extern void data_skip(archive_handle_t *archive_handle);
82 extern void data_extract_all(archive_handle_t *archive_handle);
83 extern void data_extract_to_stdout(archive_handle_t *archive_handle);
84 extern void data_extract_to_buffer(archive_handle_t *archive_handle);
86 extern void header_skip(const file_header_t *file_header);
87 extern void header_list(const file_header_t *file_header);
88 extern void header_verbose_list(const file_header_t *file_header);
90 extern void check_header_gzip(int src_fd);
92 extern char get_header_ar(archive_handle_t *archive_handle);
93 extern char get_header_cpio(archive_handle_t *archive_handle);
94 extern char get_header_tar(archive_handle_t *archive_handle);
95 extern char get_header_tar_bz2(archive_handle_t *archive_handle);
96 extern char get_header_tar_lzma(archive_handle_t *archive_handle);
97 extern char get_header_tar_gz(archive_handle_t *archive_handle);
99 extern void seek_by_jump(const archive_handle_t *archive_handle, const unsigned int amount);
100 extern void seek_by_read(const archive_handle_t *archive_handle, const unsigned int amount);
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 *find_list_entry(const llist_t *list, const char *filename);
106 extern const llist_t *find_list_entry2(const llist_t *list, const char *filename);
108 extern USE_DESKTOP(long long) int uncompressStream(int src_fd, int dst_fd);
109 extern void inflate_init(unsigned int bufsize);
110 extern void inflate_cleanup(void);
111 extern USE_DESKTOP(long long) int inflate_unzip(int in, int out);
112 extern USE_DESKTOP(long long) int inflate_gunzip(int in, int out);
113 extern USE_DESKTOP(long long) int unlzma(int src_fd, int dst_fd);
115 extern int open_transformer(int src_fd,
116 USE_DESKTOP(long long) int (*transformer)(int src_fd, int dst_fd));