1 /* vi: set sw=4 ts=4: */
5 PUSH_AND_SET_FUNCTION_VISIBILITY_TO_HIDDEN
7 typedef struct file_header_t {
10 #if ENABLE_FEATURE_TAR_UNAME_GNAME
24 typedef struct archive_handle_t {
25 /* Flags. 1st since it is most used member */
28 /* The raw stream as read from disk or stdin */
31 /* Define if the header and data component should be processed */
32 char FAST_FUNC (*filter)(struct archive_handle_t *);
33 /* List of files that have been accepted */
35 /* List of files that have been rejected */
37 /* List of files that have successfully been worked on */
40 /* Currently processed file's header */
41 file_header_t *file_header;
43 /* Process the header component, e.g. tar -t */
44 void FAST_FUNC (*action_header)(const file_header_t *);
46 /* Process the data component, e.g. extract to filesystem */
47 void FAST_FUNC (*action_data)(struct archive_handle_t *);
49 /* Function that skips data */
50 void FAST_FUNC (*seek)(int fd, off_t amount);
52 /* Count processed bytes */
55 /* Archiver specific. Can make it a union if it ever gets big */
56 #if ENABLE_TAR || ENABLE_DPKG || ENABLE_DPKG_DEB
58 # if ENABLE_FEATURE_TAR_GNU_EXTENSIONS
62 # if ENABLE_FEATURE_TAR_SELINUX
63 char* tar__global_sctx;
64 char* tar__next_file_sctx;
67 #if ENABLE_CPIO || ENABLE_RPM2CPIO || ENABLE_RPM
69 struct hardlinks_t *cpio__hardlinks_to_create;
70 struct hardlinks_t *cpio__created_hardlinks;
72 #if ENABLE_DPKG || ENABLE_DPKG_DEB
73 /* Temporary storage */
75 /* How to process any sub archive, e.g. get_header_tar_gz */
76 char FAST_FUNC (*dpkg__action_data_subarchive)(struct archive_handle_t *);
77 /* Contains the handle to a sub archive */
78 struct archive_handle_t *dpkg__sub_archive;
80 #if ENABLE_FEATURE_AR_CREATE
82 struct archive_handle_t *ar__out;
85 /* bits in ah_flags */
86 #define ARCHIVE_RESTORE_DATE (1 << 0)
87 #define ARCHIVE_CREATE_LEADING_DIRS (1 << 1)
88 #define ARCHIVE_UNLINK_OLD (1 << 2)
89 #define ARCHIVE_EXTRACT_QUIET (1 << 3)
90 #define ARCHIVE_EXTRACT_NEWER (1 << 4)
91 #define ARCHIVE_DONT_RESTORE_OWNER (1 << 5)
92 #define ARCHIVE_DONT_RESTORE_PERM (1 << 6)
93 #define ARCHIVE_NUMERIC_OWNER (1 << 7)
94 #define ARCHIVE_O_TRUNC (1 << 8)
97 /* Info struct unpackers can fill out to inform users of thing like
98 * timestamps of unpacked files */
99 typedef struct unpack_info_t {
103 extern archive_handle_t *init_handle(void) FAST_FUNC;
105 extern char filter_accept_all(archive_handle_t *archive_handle) FAST_FUNC;
106 extern char filter_accept_list(archive_handle_t *archive_handle) FAST_FUNC;
107 extern char filter_accept_list_reassign(archive_handle_t *archive_handle) FAST_FUNC;
108 extern char filter_accept_reject_list(archive_handle_t *archive_handle) FAST_FUNC;
110 extern void unpack_ar_archive(archive_handle_t *ar_archive) FAST_FUNC;
112 extern void data_skip(archive_handle_t *archive_handle) FAST_FUNC;
113 extern void data_extract_all(archive_handle_t *archive_handle) FAST_FUNC;
114 extern void data_extract_to_stdout(archive_handle_t *archive_handle) FAST_FUNC;
116 extern void header_skip(const file_header_t *file_header) FAST_FUNC;
117 extern void header_list(const file_header_t *file_header) FAST_FUNC;
118 extern void header_verbose_list(const file_header_t *file_header) FAST_FUNC;
120 extern char get_header_ar(archive_handle_t *archive_handle) FAST_FUNC;
121 extern char get_header_cpio(archive_handle_t *archive_handle) FAST_FUNC;
122 extern char get_header_tar(archive_handle_t *archive_handle) FAST_FUNC;
123 extern char get_header_tar_gz(archive_handle_t *archive_handle) FAST_FUNC;
124 extern char get_header_tar_bz2(archive_handle_t *archive_handle) FAST_FUNC;
125 extern char get_header_tar_lzma(archive_handle_t *archive_handle) FAST_FUNC;
127 extern void seek_by_jump(int fd, off_t amount) FAST_FUNC;
128 extern void seek_by_read(int fd, off_t amount) FAST_FUNC;
130 extern void data_align(archive_handle_t *archive_handle, unsigned boundary) FAST_FUNC;
131 extern const llist_t *find_list_entry(const llist_t *list, const char *filename) FAST_FUNC;
132 extern const llist_t *find_list_entry2(const llist_t *list, const char *filename) FAST_FUNC;
134 /* A bit of bunzip2 internals are exposed for compressed help support: */
135 typedef struct bunzip_data bunzip_data;
136 int start_bunzip(bunzip_data **bdp, int in_fd, const unsigned char *inbuf, int len) FAST_FUNC;
137 int read_bunzip(bunzip_data *bd, char *outbuf, int len) FAST_FUNC;
138 void dealloc_bunzip(bunzip_data *bd) FAST_FUNC;
140 typedef struct inflate_unzip_result {
143 } inflate_unzip_result;
145 IF_DESKTOP(long long) int inflate_unzip(inflate_unzip_result *res, off_t compr_size, int src_fd, int dst_fd) FAST_FUNC;
146 IF_DESKTOP(long long) int unpack_xz_stream_stdin(void) FAST_FUNC;
147 /* lzma unpacker takes .lzma stream from offset 0 */
148 IF_DESKTOP(long long) int unpack_lzma_stream(int src_fd, int dst_fd) FAST_FUNC;
149 /* the rest wants 2 first bytes already skipped by the caller */
150 IF_DESKTOP(long long) int unpack_bz2_stream(int src_fd, int dst_fd) FAST_FUNC;
151 IF_DESKTOP(long long) int unpack_gz_stream(int src_fd, int dst_fd) FAST_FUNC;
152 IF_DESKTOP(long long) int unpack_gz_stream_with_info(int src_fd, int dst_fd, unpack_info_t *info) FAST_FUNC;
153 IF_DESKTOP(long long) int unpack_Z_stream(int fd_in, int fd_out) FAST_FUNC;
154 /* wrapper which checks first two bytes to be "BZ" */
155 IF_DESKTOP(long long) int unpack_bz2_stream_prime(int src_fd, int dst_fd) FAST_FUNC;
157 int bbunpack(char **argv,
158 char* (*make_new_name)(char *filename),
159 IF_DESKTOP(long long) int (*unpacker)(unpack_info_t *info)) FAST_FUNC;
162 void open_transformer(int fd,
163 IF_DESKTOP(long long) int FAST_FUNC (*transformer)(int src_fd, int dst_fd)) FAST_FUNC;
164 #define open_transformer(fd, transformer, transform_prog) open_transformer(fd, transformer)
166 void open_transformer(int src_fd, const char *transform_prog) FAST_FUNC;
167 #define open_transformer(fd, transformer, transform_prog) open_transformer(fd, transform_prog)
170 POP_SAVED_FUNCTION_VISIBILITY