/* Currently processed file's header */
file_header_t *file_header;
+ /* List of link placeholders */
+ llist_t *link_placeholders;
+
/* Process the header component, e.g. tar -t */
void FAST_FUNC (*action_header)(const file_header_t *);
off_t offset;
/* Archiver specific. Can make it a union if it ever gets big */
+#if ENABLE_FEATURE_TAR_LONG_OPTIONS
+ unsigned tar__strip_components;
+#endif
#define PAX_NEXT_FILE 0
#define PAX_GLOBAL 1
#if ENABLE_TAR || ENABLE_DPKG || ENABLE_DPKG_DEB
#endif
#if ENABLE_CPIO || ENABLE_RPM2CPIO || ENABLE_RPM
uoff_t cpio__blocks;
+ struct bb_uidgid_t cpio__owner;
struct hardlinks_t *cpio__hardlinks_to_create;
struct hardlinks_t *cpio__created_hardlinks;
#endif
const char *ar__name;
struct archive_handle_t *ar__out;
#endif
+#if ENABLE_FEATURE_AR_LONG_FILENAMES
+ char *ar__long_names;
+ unsigned ar__long_name_size;
+#endif
} archive_handle_t;
/* bits in ah_flags */
#define ARCHIVE_RESTORE_DATE (1 << 0)
#define ARCHIVE_CREATE_LEADING_DIRS (1 << 1)
#define ARCHIVE_UNLINK_OLD (1 << 2)
-#define ARCHIVE_EXTRACT_QUIET (1 << 3)
-#define ARCHIVE_EXTRACT_NEWER (1 << 4)
-#define ARCHIVE_DONT_RESTORE_OWNER (1 << 5)
-#define ARCHIVE_DONT_RESTORE_PERM (1 << 6)
-#define ARCHIVE_NUMERIC_OWNER (1 << 7)
-#define ARCHIVE_O_TRUNC (1 << 8)
+#define ARCHIVE_EXTRACT_NEWER (1 << 3)
+#define ARCHIVE_DONT_RESTORE_OWNER (1 << 4)
+#define ARCHIVE_DONT_RESTORE_PERM (1 << 5)
+#define ARCHIVE_NUMERIC_OWNER (1 << 6)
+#define ARCHIVE_O_TRUNC (1 << 7)
+#define ARCHIVE_REMEMBER_NAMES (1 << 8)
+#if ENABLE_RPM
+#define ARCHIVE_REPLACE_VIA_RENAME (1 << 9)
+#endif
/* POSIX tar Header Block, from POSIX 1003.1-1990 */
};
+extern const char cpio_TRAILER[];
+
archive_handle_t *init_handle(void) FAST_FUNC;
char get_header_cpio(archive_handle_t *archive_handle) FAST_FUNC;
char get_header_tar(archive_handle_t *archive_handle) FAST_FUNC;
char get_header_tar_gz(archive_handle_t *archive_handle) FAST_FUNC;
+char get_header_tar_xz(archive_handle_t *archive_handle) FAST_FUNC;
char get_header_tar_bz2(archive_handle_t *archive_handle) FAST_FUNC;
char get_header_tar_lzma(archive_handle_t *archive_handle) FAST_FUNC;
+char get_header_tar_xz(archive_handle_t *archive_handle) FAST_FUNC;
void seek_by_jump(int fd, off_t amount) FAST_FUNC;
void seek_by_read(int fd, off_t amount) FAST_FUNC;
const char *strip_unsafe_prefix(const char *str) FAST_FUNC;
+void create_or_remember_link(llist_t **link_placeholders,
+ const char *target,
+ const char *linkname,
+ int hard_link) FAST_FUNC;
+void create_links_from_list(llist_t *list) FAST_FUNC;
void data_align(archive_handle_t *archive_handle, unsigned boundary) FAST_FUNC;
const llist_t *find_list_entry(const llist_t *list, const char *filename) FAST_FUNC;
/* A bit of bunzip2 internals are exposed for compressed help support: */
typedef struct bunzip_data bunzip_data;
-int start_bunzip(bunzip_data **bdp, int in_fd, const void *inbuf, int len) FAST_FUNC;
+int start_bunzip(void *, bunzip_data **bdp, int in_fd, const void *inbuf, int len) FAST_FUNC;
/* NB: read_bunzip returns < 0 on error, or the number of *unfilled* bytes
* in outbuf. IOW: on EOF returns len ("all bytes are not filled"), not 0: */
int read_bunzip(bunzip_data *bd, char *outbuf, int len) FAST_FUNC;
void dealloc_bunzip(bunzip_data *bd) FAST_FUNC;
/* Meaning and direction (input/output) of the fields are transformer-specific */
-typedef struct transformer_aux_data_t {
- smallint check_signature; /* most often referenced member */
+typedef struct transformer_state_t {
+ smallint signature_skipped; /* most often referenced member */
+
+ IF_DESKTOP(long long) int FAST_FUNC (*xformer)(struct transformer_state_t *xstate);
+ USE_FOR_NOMMU(const char *xformer_prog;)
+
+ /* Source */
+ int src_fd;
+ /* Output */
+ int dst_fd;
+ size_t mem_output_size_max; /* if non-zero, decompress to RAM instead of fd */
+ size_t mem_output_size;
+ char *mem_output_buf;
+
off_t bytes_out;
off_t bytes_in; /* used in unzip code only: needs to know packed size */
uint32_t crc32;
time_t mtime; /* gunzip code may set this on exit */
-} transformer_aux_data_t;
+} transformer_state_t;
-void init_transformer_aux_data(transformer_aux_data_t *aux) FAST_FUNC;
-int FAST_FUNC check_signature16(transformer_aux_data_t *aux, int src_fd, unsigned magic16) FAST_FUNC;
+void init_transformer_state(transformer_state_t *xstate) FAST_FUNC;
+ssize_t transformer_write(transformer_state_t *xstate, const void *buf, size_t bufsize) FAST_FUNC;
+ssize_t xtransformer_write(transformer_state_t *xstate, const void *buf, size_t bufsize) FAST_FUNC;
+int check_signature16(transformer_state_t *xstate, unsigned magic16) FAST_FUNC;
-IF_DESKTOP(long long) int inflate_unzip(transformer_aux_data_t *aux, int src_fd, int dst_fd) FAST_FUNC;
-IF_DESKTOP(long long) int unpack_Z_stream(transformer_aux_data_t *aux, int src_fd, int dst_fd) FAST_FUNC;
-IF_DESKTOP(long long) int unpack_gz_stream(transformer_aux_data_t *aux, int src_fd, int dst_fd) FAST_FUNC;
-IF_DESKTOP(long long) int unpack_bz2_stream(transformer_aux_data_t *aux, int src_fd, int dst_fd) FAST_FUNC;
-IF_DESKTOP(long long) int unpack_lzma_stream(transformer_aux_data_t *aux, int src_fd, int dst_fd) FAST_FUNC;
-IF_DESKTOP(long long) int unpack_xz_stream(transformer_aux_data_t *aux, int src_fd, int dst_fd) FAST_FUNC;
+IF_DESKTOP(long long) int inflate_unzip(transformer_state_t *xstate) FAST_FUNC;
+IF_DESKTOP(long long) int unpack_Z_stream(transformer_state_t *xstate) FAST_FUNC;
+IF_DESKTOP(long long) int unpack_gz_stream(transformer_state_t *xstate) FAST_FUNC;
+IF_DESKTOP(long long) int unpack_bz2_stream(transformer_state_t *xstate) FAST_FUNC;
+IF_DESKTOP(long long) int unpack_lzma_stream(transformer_state_t *xstate) FAST_FUNC;
+IF_DESKTOP(long long) int unpack_xz_stream(transformer_state_t *xstate) FAST_FUNC;
char* append_ext(char *filename, const char *expected_ext) FAST_FUNC;
int bbunpack(char **argv,
- IF_DESKTOP(long long) int FAST_FUNC (*unpacker)(transformer_aux_data_t *aux),
- char* FAST_FUNC (*make_new_name)(char *filename, const char *expected_ext),
- const char *expected_ext
+ IF_DESKTOP(long long) int FAST_FUNC (*unpacker)(transformer_state_t *xstate),
+ char* FAST_FUNC (*make_new_name)(char *filename, const char *expected_ext),
+ const char *expected_ext
) FAST_FUNC;
+#define BBUNPK_OPTSTR "cfkvq"
+#define BBUNPK_OPTSTRLEN 5
+#define BBUNPK_OPTSTRMASK ((1 << BBUNPK_OPTSTRLEN) - 1)
+enum {
+ BBUNPK_OPT_STDOUT = 1 << 0,
+ BBUNPK_OPT_FORCE = 1 << 1,
+ /* only some decompressors: */
+ BBUNPK_OPT_KEEP = 1 << 2,
+ BBUNPK_OPT_VERBOSE = 1 << 3,
+ BBUNPK_OPT_QUIET = 1 << 4,
+ /* not included in BBUNPK_OPTSTR: */
+ BBUNPK_OPT_DECOMPRESS = 1 << 5,
+ BBUNPK_OPT_TEST = 1 << 6,
+ BBUNPK_SEAMLESS_MAGIC = (1 << 31) * ENABLE_ZCAT * SEAMLESS_COMPRESSION,
+};
+void check_errors_in_children(int signo);
#if BB_MMU
-void open_transformer(int fd,
- int check_signature,
- IF_DESKTOP(long long) int FAST_FUNC (*transformer)(transformer_aux_data_t *aux, int src_fd, int dst_fd)
+void fork_transformer(int fd,
+ int signature_skipped,
+ IF_DESKTOP(long long) int FAST_FUNC (*transformer)(transformer_state_t *xstate)
) FAST_FUNC;
-#define open_transformer_with_sig(fd, transformer, transform_prog) open_transformer((fd), 1, (transformer))
-#define open_transformer_with_no_sig(fd, transformer) open_transformer((fd), 0, (transformer))
+#define fork_transformer_with_sig(fd, transformer, transform_prog) fork_transformer((fd), 0, (transformer))
+#define fork_transformer_with_no_sig(fd, transformer) fork_transformer((fd), 1, (transformer))
#else
-void open_transformer(int fd, const char *transform_prog) FAST_FUNC;
-#define open_transformer_with_sig(fd, transformer, transform_prog) open_transformer((fd), (transform_prog))
-/* open_transformer_with_no_sig() does not exist on NOMMU */
+void fork_transformer(int fd, const char *transform_prog) FAST_FUNC;
+#define fork_transformer_with_sig(fd, transformer, transform_prog) fork_transformer((fd), (transform_prog))
+/* fork_transformer_with_no_sig() does not exist on NOMMU */
#endif
projects / oweals / busybox.git / blobdiff