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
13 typedef struct file_header_t {
24 typedef struct archive_handle_t {
25 /* define if the header and data component should be processed */
26 char (*filter)(struct archive_handle_t *);
28 /* List of files that have been rejected */
30 /* List of files that have successfully been worked on */
33 /* Contains the processed header entry */
34 file_header_t *file_header;
36 /* process the header component, e.g. tar -t */
37 void (*action_header)(const file_header_t *);
39 /* process the data component, e.g. extract to filesystem */
40 void (*action_data)(struct archive_handle_t *);
42 /* How to process any sub archive, e.g. get_header_tar_gz */
43 char (*action_data_subarchive)(struct archive_handle_t *);
45 /* Contains the handle to a sub archive */
46 struct archive_handle_t *sub_archive;
48 /* The raw stream as read from disk or stdin */
51 /* Count the number of bytes processed */
54 /* Function that skips data: read_by_char or read_by_skip */
55 void (*seek)(const struct archive_handle_t *archive_handle, const unsigned amount);
57 /* Temporary storage */
60 /* Flags and misc. stuff */
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_or_die(int src_fd);
86 extern char get_header_ar(archive_handle_t *archive_handle);
87 extern char get_header_cpio(archive_handle_t *archive_handle);
88 extern char get_header_tar(archive_handle_t *archive_handle);
89 extern char get_header_tar_bz2(archive_handle_t *archive_handle);
90 extern char get_header_tar_lzma(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 amount);
94 extern void seek_by_read(const archive_handle_t *archive_handle, const unsigned amount);
96 extern ssize_t archive_xread_all_eof(archive_handle_t *archive_handle, unsigned char *buf, size_t count);
98 extern void data_align(archive_handle_t *archive_handle, const unsigned short boundary);
99 extern const llist_t *find_list_entry(const llist_t *list, const char *filename);
100 extern const llist_t *find_list_entry2(const llist_t *list, const char *filename);
102 /* A bit of bunzip2 internals are exposed for compressed help support: */
103 typedef struct bunzip_data bunzip_data;
104 int start_bunzip(bunzip_data **bdp, int in_fd, const unsigned char *inbuf, int len);
105 int read_bunzip(bunzip_data *bd, char *outbuf, int len);
106 void dealloc_bunzip(bunzip_data *bd);
108 typedef struct inflate_unzip_result {
111 } inflate_unzip_result;
113 extern USE_DESKTOP(long long) int unpack_bz2_stream(int src_fd, int dst_fd);
114 extern USE_DESKTOP(long long) int inflate_unzip(inflate_unzip_result *res, unsigned bufsize, int src_fd, int dst_fd);
115 extern USE_DESKTOP(long long) int unpack_gz_stream(int src_fd, int dst_fd);
116 extern USE_DESKTOP(long long) int unpack_lzma_stream(int src_fd, int dst_fd);
119 extern int open_transformer(int src_fd,
120 USE_DESKTOP(long long) int (*transformer)(int src_fd, int dst_fd));
121 #define open_transformer(src_fd, transformer, transform_prog, ...) open_transformer(src_fd, transformer)
123 extern int open_transformer(int src_fd, const char *transform_prog, ...);
124 #define open_transformer(src_fd, transformer, transform_prog, ...) open_transformer(src_fd, transform_prog, __VA_ARGS__)