diff options
Diffstat (limited to 'archival')
| -rw-r--r-- | archival/Config.in | 114 | ||||
| -rw-r--r-- | archival/bbunzip.c | 12 | ||||
| -rw-r--r-- | archival/dpkg.c | 8 | ||||
| -rw-r--r-- | archival/dpkg_deb.c | 4 | ||||
| -rw-r--r-- | archival/libunarchive/Kbuild | 26 | ||||
| -rw-r--r-- | archival/libunarchive/decompress_bunzip2.c | 29 | ||||
| -rw-r--r-- | archival/libunarchive/decompress_uncompress.c | 8 | ||||
| -rw-r--r-- | archival/libunarchive/filter_accept_list_reassign.c | 15 | ||||
| -rw-r--r-- | archival/libunarchive/get_header_tar.c | 4 | ||||
| -rw-r--r-- | archival/libunarchive/get_header_tar_bz2.c | 2 | ||||
| -rw-r--r-- | archival/rpm.c | 24 | ||||
| -rw-r--r-- | archival/tar.c | 92 |
12 files changed, 145 insertions, 193 deletions
diff --git a/archival/Config.in b/archival/Config.in index b26be64..d6332a2 100644 --- a/archival/Config.in +++ b/archival/Config.in @@ -5,6 +5,30 @@ menu "Archival Utilities" +config FEATURE_SEAMLESS_LZMA + bool "Make tar, rpm, man, modprobe etc understand .lzma data" + default n + help + Make tar, rpm, man, modprobe etc understand .lzma data. + +config FEATURE_SEAMLESS_BZ2 + bool "Make tar, rpm, man, modprobe etc understand .bz2 data" + default n + help + Make tar, rpm, man, modprobe etc understand .bz2 data. + +config FEATURE_SEAMLESS_GZ + bool "Make tar, rpm, man, modprobe etc understand .gz data" + default n + help + Make tar, rpm, man, modprobe etc understand .gz data. + +config FEATURE_SEAMLESS_Z + bool "Make tar and gunzip understand .Z data" + default n + help + Make tar and gunzip understand .Z data. + config AR bool "ar" default n @@ -126,15 +150,6 @@ config GUNZIP You can use the `-t' option to test the integrity of an archive, without decompressing it. -config FEATURE_GUNZIP_UNCOMPRESS - bool "Uncompress support" - default n - depends on GUNZIP - help - Enable if you want gunzip to have the ability to decompress - archives created by the program compress (not much - used anymore). - config GZIP bool "gzip" default n @@ -154,13 +169,6 @@ config RPM help Mini RPM applet - queries and extracts RPM packages. -config FEATURE_RPM_BZ2 - bool "Enable handling of rpms with bzip2-compressed data inside" - default n - depends on RPM - help - Enable handling of rpms with bzip2-compressed data inside. - config TAR bool "tar" default n @@ -179,42 +187,10 @@ config FEATURE_TAR_CREATE If you enable this option you'll be able to create tar archives using the `-c' option. -config FEATURE_TAR_GZIP - bool "Enable -z option" - default y - depends on TAR - help - If you enable this option tar will be able to call gzip, - when creating or extracting tar gziped archives. - -config FEATURE_TAR_BZIP2 - bool "Enable -j option to handle .tar.bz2 files" - default n - depends on TAR - help - If you enable this option you'll be able to extract - archives compressed with bzip2. - -config FEATURE_TAR_LZMA - bool "Enable -a option to handle .tar.lzma files" - default n - depends on TAR - help - If you enable this option you'll be able to extract - archives compressed with lzma. - -config FEATURE_TAR_COMPRESS - bool "Enable -Z option" - default n - depends on TAR - help - If you enable this option tar will be able to call uncompress, - when extracting .tar.Z archives. - config FEATURE_TAR_AUTODETECT - bool "Autodetect gz/bz2 compresses tarballs" + bool "Autodetect gz/bz2 compressed tarballs" default n - depends on FEATURE_TAR_GZIP || FEATURE_TAR_BZIP2 + depends on FEATURE_SEAMLESS_Z || FEATURE_SEAMLESS_GZ || FEATURE_SEAMLESS_BZ2 || FEATURE_SEAMLESS_LZMA help With this option tar can automatically detect gzip/bzip2 compressed tarballs. Currently it works only on files (not pipes etc). @@ -312,42 +288,4 @@ config UNZIP current directory. Use the `-d' option to extract to a directory of your choice. -comment "Common options for cpio and tar" - depends on CPIO || TAR - -comment "Common options for dpkg and dpkg_deb" - depends on DPKG || DPKG_DEB - -config FEATURE_DEB_TAR_GZ - bool "gzip debian packages (normal)" - default y if DPKG || DPKG_DEB - depends on DPKG || DPKG_DEB - help - This is the default compression method inside the debian ar file. - - If you want compatibility with standard .deb's you should say yes - here. - -config FEATURE_DEB_TAR_BZ2 - bool "bzip2 debian packages" - default n - depends on DPKG || DPKG_DEB - help - This allows dpkg and dpkg-deb to extract deb's that are compressed - internally with bzip2 instead of gzip. - - You only want this if you are creating your own custom debian - packages that use an internal control.tar.bz2 or data.tar.bz2. - -config FEATURE_DEB_TAR_LZMA - bool "lzma debian packages" - default n - depends on DPKG || DPKG_DEB - help - This allows dpkg and dpkg-deb to extract deb's that are compressed - internally with lzma instead of gzip. - - You only want this if you are creating your own custom debian - packages that use an internal control.tar.lzma or data.tar.lzma. - endmenu diff --git a/archival/bbunzip.c b/archival/bbunzip.c index 65bb8b7..c796205 100644 --- a/archival/bbunzip.c +++ b/archival/bbunzip.c @@ -161,7 +161,7 @@ char* make_new_name_bunzip2(char *filename) static USE_DESKTOP(long long) int unpack_bunzip2(void) { - return unpack_bz2_stream(STDIN_FILENO, STDOUT_FILENO); + return unpack_bz2_stream_prime(STDIN_FILENO, STDOUT_FILENO); } int bunzip2_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; @@ -218,8 +218,8 @@ char* make_new_name_gunzip(char *filename) extension++; if (strcmp(extension, "tgz" + 1) == 0 -#if ENABLE_FEATURE_GUNZIP_UNCOMPRESS - || strcmp(extension, "Z") == 0 +#if ENABLE_FEATURE_SEAMLESS_Z + || (extension[0] == 'Z' && extension[1] == '\0') #endif ) { extension[-1] = '\0'; @@ -244,8 +244,8 @@ USE_DESKTOP(long long) int unpack_gunzip(void) unsigned char magic2; magic2 = xread_char(STDIN_FILENO); - if (ENABLE_FEATURE_GUNZIP_UNCOMPRESS && magic2 == 0x9d) { - status = uncompress(STDIN_FILENO, STDOUT_FILENO); + if (ENABLE_FEATURE_SEAMLESS_Z && magic2 == 0x9d) { + status = unpack_Z_stream(STDIN_FILENO, STDOUT_FILENO); } else if (magic2 == 0x8b) { status = unpack_gz_stream(STDIN_FILENO, STDOUT_FILENO); } else { @@ -351,7 +351,7 @@ USE_DESKTOP(long long) int unpack_uncompress(void) if ((xread_char(STDIN_FILENO) != 0x1f) || (xread_char(STDIN_FILENO) != 0x9d)) { bb_error_msg("invalid magic"); } else { - status = uncompress(STDIN_FILENO, STDOUT_FILENO); + status = unpack_Z_stream(STDIN_FILENO, STDOUT_FILENO); } return status; } diff --git a/archival/dpkg.c b/archival/dpkg.c index 54e9632..f31a7f0 100644 --- a/archival/dpkg.c +++ b/archival/dpkg.c @@ -1438,10 +1438,10 @@ static void init_archive_deb_control(archive_handle_t *ar_handle) tar_handle->src_fd = ar_handle->src_fd; /* We don't care about data.tar.* or debian-binary, just control.tar.* */ -#if ENABLE_FEATURE_DEB_TAR_GZ +#if ENABLE_FEATURE_SEAMLESS_GZ llist_add_to(&(ar_handle->accept), (char*)"control.tar.gz"); #endif -#if ENABLE_FEATURE_DEB_TAR_BZ2 +#if ENABLE_FEATURE_SEAMLESS_BZ2 llist_add_to(&(ar_handle->accept), (char*)"control.tar.bz2"); #endif @@ -1458,10 +1458,10 @@ static void init_archive_deb_data(archive_handle_t *ar_handle) tar_handle->src_fd = ar_handle->src_fd; /* We don't care about control.tar.* or debian-binary, just data.tar.* */ -#if ENABLE_FEATURE_DEB_TAR_GZ +#if ENABLE_FEATURE_SEAMLESS_GZ llist_add_to(&(ar_handle->accept), (char*)"data.tar.gz"); #endif -#if ENABLE_FEATURE_DEB_TAR_BZ2 +#if ENABLE_FEATURE_SEAMLESS_BZ2 llist_add_to(&(ar_handle->accept), (char*)"data.tar.bz2"); #endif diff --git a/archival/dpkg_deb.c b/archival/dpkg_deb.c index 9e6340f..f94c90c 100644 --- a/archival/dpkg_deb.c +++ b/archival/dpkg_deb.c @@ -31,12 +31,12 @@ int dpkg_deb_main(int argc, char **argv) ar_archive->sub_archive = tar_archive; ar_archive->filter = filter_accept_list_reassign; -#if ENABLE_FEATURE_DEB_TAR_GZ +#if ENABLE_FEATURE_SEAMLESS_GZ llist_add_to(&(ar_archive->accept), (char*)"data.tar.gz"); llist_add_to(&control_tar_llist, (char*)"control.tar.gz"); #endif -#if ENABLE_FEATURE_DEB_TAR_BZ2 +#if ENABLE_FEATURE_SEAMLESS_BZ2 llist_add_to(&(ar_archive->accept), (char*)"data.tar.bz2"); llist_add_to(&control_tar_llist, (char*)"control.tar.bz2"); #endif diff --git a/archival/libunarchive/Kbuild b/archival/libunarchive/Kbuild index 468a7e8..364f917 100644 --- a/archival/libunarchive/Kbuild +++ b/archival/libunarchive/Kbuild @@ -32,36 +32,20 @@ DPKG_FILES:= \ get_header_tar.o \ filter_accept_list_reassign.o -lib-$(CONFIG_RPM) += open_transformer.o -lib-$(CONFIG_FEATURE_TAR_BZIP2) += open_transformer.o -lib-$(CONFIG_FEATURE_TAR_LZMA) += open_transformer.o -lib-$(CONFIG_FEATURE_TAR_GZIP) += open_transformer.o -lib-$(CONFIG_FEATURE_TAR_COMPRESS) += open_transformer.o -lib-$(CONFIG_FEATURE_DEB_TAR_GZ) += open_transformer.o -lib-$(CONFIG_FEATURE_DEB_TAR_BZ2) += open_transformer.o -lib-$(CONFIG_FEATURE_DEB_TAR_LZMA) += open_transformer.o - -lib-$(CONFIG_FEATURE_MODPROBE_SMALL_ZIPPED) += open_transformer.o decompress_unzip.o decompress_bunzip2.o - lib-$(CONFIG_AR) += get_header_ar.o unpack_ar_archive.o lib-$(CONFIG_BUNZIP2) += decompress_bunzip2.o lib-$(CONFIG_UNLZMA) += decompress_unlzma.o lib-$(CONFIG_CPIO) += get_header_cpio.o lib-$(CONFIG_DPKG) += $(DPKG_FILES) lib-$(CONFIG_DPKG_DEB) += $(DPKG_FILES) -lib-$(CONFIG_FEATURE_DEB_TAR_GZ) += decompress_unzip.o get_header_tar_gz.o -lib-$(CONFIG_FEATURE_DEB_TAR_BZ2) += decompress_bunzip2.o get_header_tar_bz2.o -lib-$(CONFIG_FEATURE_DEB_TAR_LZMA) += decompress_unlzma.o get_header_tar_lzma.o lib-$(CONFIG_GUNZIP) += decompress_unzip.o -lib-$(CONFIG_FEATURE_GUNZIP_UNCOMPRESS) += decompress_uncompress.o lib-$(CONFIG_RPM2CPIO) += decompress_unzip.o get_header_cpio.o -lib-$(CONFIG_RPM) += decompress_unzip.o get_header_cpio.o -lib-$(CONFIG_FEATURE_RPM_BZ2) += decompress_bunzip2.o +lib-$(CONFIG_RPM) += open_transformer.o decompress_unzip.o get_header_cpio.o lib-$(CONFIG_TAR) += get_header_tar.o -lib-$(CONFIG_FEATURE_TAR_BZIP2) += decompress_bunzip2.o get_header_tar_bz2.o -lib-$(CONFIG_FEATURE_TAR_LZMA) += decompress_unlzma.o get_header_tar_lzma.o -lib-$(CONFIG_FEATURE_TAR_GZIP) += decompress_unzip.o get_header_tar_gz.o -lib-$(CONFIG_FEATURE_TAR_COMPRESS) += decompress_uncompress.o lib-$(CONFIG_UNCOMPRESS) += decompress_uncompress.o lib-$(CONFIG_UNZIP) += decompress_unzip.o +lib-$(CONFIG_FEATURE_SEAMLESS_Z) += open_transformer.o decompress_uncompress.o +lib-$(CONFIG_FEATURE_SEAMLESS_GZ) += open_transformer.o decompress_unzip.o get_header_tar_gz.o +lib-$(CONFIG_FEATURE_SEAMLESS_BZ2) += open_transformer.o decompress_bunzip2.o get_header_tar_bz2.o +lib-$(CONFIG_FEATURE_SEAMLESS_LZMA) += open_transformer.o decompress_unlzma.o get_header_tar_lzma.o lib-$(CONFIG_FEATURE_COMPRESS_USAGE) += decompress_bunzip2.o diff --git a/archival/libunarchive/decompress_bunzip2.c b/archival/libunarchive/decompress_bunzip2.c index 654dc28..b53720f 100644 --- a/archival/libunarchive/decompress_bunzip2.c +++ b/archival/libunarchive/decompress_bunzip2.c @@ -590,7 +590,8 @@ int FAST_FUNC start_bunzip(bunzip_data **bdp, int in_fd, const unsigned char *in bunzip_data *bd; unsigned i; enum { - BZh0 = ('B' << 24) + ('Z' << 16) + ('h' << 8) + '0' + BZh0 = ('B' << 24) + ('Z' << 16) + ('h' << 8) + '0', + h0 = ('h' << 8) + '0', }; /* Figure out how much data to allocate */ @@ -617,12 +618,18 @@ int FAST_FUNC start_bunzip(bunzip_data **bdp, int in_fd, const unsigned char *in if (i) return i; /* Ensure that file starts with "BZh['1'-'9']." */ - i = get_bits(bd, 32); - if ((unsigned)(i - BZh0 - 1) >= 9) return RETVAL_NOT_BZIP_DATA; + /* Update: now caller verifies 1st two bytes, makes .gz/.bz2 + * integration easier */ + /* was: */ + /* i = get_bits(bd, 32); */ + /* if ((unsigned)(i - BZh0 - 1) >= 9) return RETVAL_NOT_BZIP_DATA; */ + i = get_bits(bd, 16); + if ((unsigned)(i - h0 - 1) >= 9) return RETVAL_NOT_BZIP_DATA; /* Fourth byte (ascii '1'-'9') indicates block size in units of 100k of uncompressed data. Allocate intermediate buffer for block. */ - bd->dbufSize = 100000 * (i - BZh0); + /* bd->dbufSize = 100000 * (i - BZh0); */ + bd->dbufSize = 100000 * (i - h0); /* Cannot use xmalloc - may leak bd in NOFORK case! */ bd->dbuf = malloc_or_warn(bd->dbufSize * sizeof(int)); @@ -682,6 +689,17 @@ unpack_bz2_stream(int src_fd, int dst_fd) return i ? i : USE_DESKTOP(total_written) + 0; } +USE_DESKTOP(long long) int FAST_FUNC +unpack_bz2_stream_prime(int src_fd, int dst_fd) +{ + unsigned char magic[2]; + xread(src_fd, magic, 2); + if (magic[0] != 'B' || magic[1] != 'Z') { + bb_error_msg_and_die("invalid magic"); + } + return unpack_bz2_stream(src_fd, dst_fd); +} + #ifdef TESTING static char *const bunzip_errors[] = { @@ -693,9 +711,10 @@ static char *const bunzip_errors[] = { /* Dumb little test thing, decompress stdin to stdout */ int main(int argc, char **argv) { - int i = unpack_bz2_stream(0, 1); + int i; char c; + int i = unpack_bz2_stream_prime(0, 1); if (i < 0) fprintf(stderr, "%s\n", bunzip_errors[-i]); else if (read(STDIN_FILENO, &c, 1)) diff --git a/archival/libunarchive/decompress_uncompress.c b/archival/libunarchive/decompress_uncompress.c index 1615700..fe1491e 100644 --- a/archival/libunarchive/decompress_uncompress.c +++ b/archival/libunarchive/decompress_uncompress.c @@ -1,6 +1,4 @@ /* vi: set sw=4 ts=4: */ -#include "libbb.h" - /* uncompress for busybox -- (c) 2002 Robert Griebl * * based on the original compress42.c source @@ -26,6 +24,10 @@ * */ +#include "libbb.h" +#include "unarchive.h" + + /* Default input buffer size */ #define IBUFSIZ 2048 @@ -71,7 +73,7 @@ */ USE_DESKTOP(long long) int FAST_FUNC -uncompress(int fd_in, int fd_out) +unpack_Z_stream(int fd_in, int fd_out) { USE_DESKTOP(long long total_written = 0;) USE_DESKTOP(long long) int retval = -1; diff --git a/archival/libunarchive/filter_accept_list_reassign.c b/archival/libunarchive/filter_accept_list_reassign.c index 4dbc2d1..f1de4e8 100644 --- a/archival/libunarchive/filter_accept_list_reassign.c +++ b/archival/libunarchive/filter_accept_list_reassign.c @@ -23,22 +23,25 @@ char FAST_FUNC filter_accept_list_reassign(archive_handle_t *archive_handle) /* Find extension */ name_ptr = strrchr(archive_handle->file_header->name, '.'); + if (!name_ptr) + return EXIT_FAILURE; + name_ptr++; /* Modify the subarchive handler based on the extension */ - if (ENABLE_FEATURE_DEB_TAR_GZ - && strcmp(name_ptr, ".gz") == 0 + if (ENABLE_FEATURE_SEAMLESS_GZ + && strcmp(name_ptr, "gz") == 0 ) { archive_handle->action_data_subarchive = get_header_tar_gz; return EXIT_SUCCESS; } - if (ENABLE_FEATURE_DEB_TAR_BZ2 - && strcmp(name_ptr, ".bz2") == 0 + if (ENABLE_FEATURE_SEAMLESS_BZ2 + && strcmp(name_ptr, "bz2") == 0 ) { archive_handle->action_data_subarchive = get_header_tar_bz2; return EXIT_SUCCESS; } - if (ENABLE_FEATURE_DEB_TAR_LZMA - && strcmp(name_ptr, ".lzma") == 0 + if (ENABLE_FEATURE_SEAMLESS_LZMA + && strcmp(name_ptr, "lzma") == 0 ) { archive_handle->action_data_subarchive = get_header_tar_lzma; return EXIT_SUCCESS; diff --git a/archival/libunarchive/get_header_tar.c b/archival/libunarchive/get_header_tar.c index 5310f3f..bf0f92b 100644 --- a/archival/libunarchive/get_header_tar.c +++ b/archival/libunarchive/get_header_tar.c @@ -148,12 +148,12 @@ char FAST_FUNC get_header_tar(archive_handle_t *archive_handle) * we can switch to get_header_tar_gz/bz2/lzma(). * Needs seekable fd. I wish recv(MSG_PEEK) works * on any fd... */ -#if ENABLE_FEATURE_TAR_GZIP +#if ENABLE_FEATURE_SEAMLESS_GZ if (tar.name[0] == 0x1f && tar.name[1] == (char)0x8b) { /* gzip */ get_header_ptr = get_header_tar_gz; } else #endif -#if ENABLE_FEATURE_TAR_BZIP2 +#if ENABLE_FEATURE_SEAMLESS_BZ2 if (tar.name[0] == 'B' && tar.name[1] == 'Z' && tar.name[2] == 'h' && isdigit(tar.name[3]) ) { /* bzip2 */ diff --git a/archival/libunarchive/get_header_tar_bz2.c b/archival/libunarchive/get_header_tar_bz2.c index 035c10b..615bbba 100644 --- a/archival/libunarchive/get_header_tar_bz2.c +++ b/archival/libunarchive/get_header_tar_bz2.c @@ -11,7 +11,7 @@ char FAST_FUNC get_header_tar_bz2(archive_handle_t *archive_handle) /* Can't lseek over pipes */ archive_handle->seek = seek_by_read; - open_transformer(archive_handle->src_fd, unpack_bz2_stream, "bunzip2"); + open_transformer(archive_handle->src_fd, unpack_bz2_stream_prime, "bunzip2"); archive_handle->offset = 0; while (get_header_tar(archive_handle) == EXIT_SUCCESS) continue; diff --git a/archival/rpm.c b/archival/rpm.c index e6dd3d8..e1f3c89 100644 --- a/archival/rpm.c +++ b/archival/rpm.c @@ -206,27 +206,27 @@ static void extract_cpio_gz(int fd) archive_handle->src_fd = fd; /*archive_handle->offset = 0; - init_handle() did it */ +// TODO: open_zipped does the same + xread(archive_handle->src_fd, &magic, 2); #if BB_MMU xformer = unpack_gz_stream; #else xformer_prog = "gunzip"; #endif - if ((magic[0] != 0x1f) || (magic[1] != 0x8b)) { - if (ENABLE_FEATURE_RPM_BZ2 - && (magic[0] == 0x42) && (magic[1] == 0x5a)) { + if (magic[0] != 0x1f || magic[1] != 0x8b) { + if (!ENABLE_FEATURE_SEAMLESS_BZ2 + || magic[0] != 'B' || magic[1] != 'Z' + ) { + bb_error_msg_and_die("no gzip" + USE_FEATURE_SEAMLESS_BZ2("/bzip2") + " magic"); + } #if BB_MMU - xformer = unpack_bz2_stream; + xformer = unpack_bz2_stream; #else - xformer_prog = "bunzip2"; + xformer_prog = "bunzip2"; #endif - /* We can do better, need modifying unpack_bz2_stream to not require - * first 2 bytes. Not very hard to do... I mean, TODO :) */ - xlseek(archive_handle->src_fd, -2, SEEK_CUR); - } else - bb_error_msg_and_die("no gzip" - USE_FEATURE_RPM_BZ2("/bzip") - " magic"); } else { #if !BB_MMU /* NOMMU version of open_transformer execs an external unzipper that should diff --git a/archival/tar.c b/archival/tar.c index b2481b8..45701c9 100644 --- a/archival/tar.c +++ b/archival/tar.c @@ -36,7 +36,7 @@ #define block_buf bb_common_bufsiz1 -#if !ENABLE_FEATURE_TAR_GZIP && !ENABLE_FEATURE_TAR_BZIP2 +#if !ENABLE_FEATURE_SEAMLESS_GZ && !ENABLE_FEATURE_SEAMLESS_BZ2 /* Do not pass gzip flag to writeTarFile() */ #define writeTarFile(tar_fd, verboseFlag, dereferenceFlag, include, exclude, gzip) \ writeTarFile(tar_fd, verboseFlag, dereferenceFlag, include, exclude) @@ -503,19 +503,19 @@ static int FAST_FUNC writeFileToTarball(const char *fileName, struct stat *statb return TRUE; } -#if ENABLE_FEATURE_TAR_GZIP || ENABLE_FEATURE_TAR_BZIP2 -#if !(ENABLE_FEATURE_TAR_GZIP && ENABLE_FEATURE_TAR_BZIP2) +#if ENABLE_FEATURE_SEAMLESS_GZ || ENABLE_FEATURE_SEAMLESS_BZ2 +#if !(ENABLE_FEATURE_SEAMLESS_GZ && ENABLE_FEATURE_SEAMLESS_BZ2) #define vfork_compressor(tar_fd, gzip) vfork_compressor(tar_fd) #endif /* Don't inline: vfork scares gcc and pessimizes code */ static void NOINLINE vfork_compressor(int tar_fd, int gzip) { pid_t gzipPid; -#if ENABLE_FEATURE_TAR_GZIP && ENABLE_FEATURE_TAR_BZIP2 +#if ENABLE_FEATURE_SEAMLESS_GZ && ENABLE_FEATURE_SEAMLESS_BZ2 const char *zip_exec = (gzip == 1) ? "gzip" : "bzip2"; -#elif ENABLE_FEATURE_TAR_GZIP +#elif ENABLE_FEATURE_SEAMLESS_GZ const char *zip_exec = "gzip"; -#else /* only ENABLE_FEATURE_TAR_BZIP2 */ +#else /* only ENABLE_FEATURE_SEAMLESS_BZ2 */ const char *zip_exec = "bzip2"; #endif // On Linux, vfork never unpauses parent early, although standard @@ -579,7 +579,7 @@ static void NOINLINE vfork_compressor(int tar_fd, int gzip) bb_perror_msg_and_die("cannot exec %s", zip_exec); } } -#endif /* ENABLE_FEATURE_TAR_GZIP || ENABLE_FEATURE_TAR_BZIP2 */ +#endif /* ENABLE_FEATURE_SEAMLESS_GZ || ENABLE_FEATURE_SEAMLESS_BZ2 */ /* gcc 4.2.1 inlines it, making code bigger */ @@ -601,7 +601,7 @@ static NOINLINE int writeTarFile(int tar_fd, int verboseFlag, if (fstat(tbInfo.tarFd, &tbInfo.statBuf) < 0) bb_perror_msg_and_die("cannot stat tar file"); -#if ENABLE_FEATURE_TAR_GZIP || ENABLE_FEATURE_TAR_BZIP2 +#if ENABLE_FEATURE_SEAMLESS_GZ || ENABLE_FEATURE_SEAMLESS_BZ2 if (gzip) vfork_compressor(tbInfo.tarFd, gzip); #endif @@ -637,7 +637,7 @@ static NOINLINE int writeTarFile(int tar_fd, int verboseFlag, if (errorFlag) bb_error_msg("error exit delayed from previous errors"); -#if ENABLE_FEATURE_TAR_GZIP || ENABLE_FEATURE_TAR_BZIP2 +#if ENABLE_FEATURE_SEAMLESS_GZ || ENABLE_FEATURE_SEAMLESS_BZ2 if (gzip) { int status; if (safe_waitpid(-1, &status, 0) == -1) @@ -679,7 +679,7 @@ static llist_t *append_file_list_to_list(llist_t *list) #define append_file_list_to_list(x) 0 #endif -#if ENABLE_FEATURE_TAR_COMPRESS +#if ENABLE_FEATURE_SEAMLESS_Z static char FAST_FUNC get_header_tar_Z(archive_handle_t *archive_handle) { /* Can't lseek over pipes */ @@ -692,7 +692,7 @@ static char FAST_FUNC get_header_tar_Z(archive_handle_t *archive_handle) bb_error_msg_and_die("invalid magic"); } - open_transformer(archive_handle->src_fd, uncompress, "uncompress"); + open_transformer(archive_handle->src_fd, unpack_Z_stream, "uncompress"); archive_handle->offset = 0; while (get_header_tar(archive_handle) == EXIT_SUCCESS) continue; @@ -729,14 +729,14 @@ static void handle_SIGCHLD(int status) enum { OPTBIT_KEEP_OLD = 7, - USE_FEATURE_TAR_CREATE( OPTBIT_CREATE ,) - USE_FEATURE_TAR_CREATE( OPTBIT_DEREFERENCE ,) - USE_FEATURE_TAR_BZIP2( OPTBIT_BZIP2 ,) - USE_FEATURE_TAR_LZMA( OPTBIT_LZMA ,) - USE_FEATURE_TAR_FROM( OPTBIT_INCLUDE_FROM,) - USE_FEATURE_TAR_FROM( OPTBIT_EXCLUDE_FROM,) - USE_FEATURE_TAR_GZIP( OPTBIT_GZIP ,) - USE_FEATURE_TAR_COMPRESS(OPTBIT_COMPRESS ,) + USE_FEATURE_TAR_CREATE( OPTBIT_CREATE ,) + USE_FEATURE_TAR_CREATE( OPTBIT_DEREFERENCE ,) + USE_FEATURE_SEAMLESS_BZ2( OPTBIT_BZIP2 ,) + USE_FEATURE_SEAMLESS_LZMA(OPTBIT_LZMA ,) + USE_FEATURE_TAR_FROM( OPTBIT_INCLUDE_FROM,) + USE_FEATURE_TAR_FROM( OPTBIT_EXCLUDE_FROM,) + USE_FEATURE_SEAMLESS_GZ( OPTBIT_GZIP ,) + USE_FEATURE_SEAMLESS_Z( OPTBIT_COMPRESS ,) OPTBIT_NOPRESERVE_OWN, OPTBIT_NOPRESERVE_PERM, OPT_TEST = 1 << 0, // t @@ -747,14 +747,14 @@ enum { OPT_P = 1 << 5, // p OPT_VERBOSE = 1 << 6, // v OPT_KEEP_OLD = 1 << 7, // k - OPT_CREATE = USE_FEATURE_TAR_CREATE( (1<<OPTBIT_CREATE )) + 0, // c - OPT_DEREFERENCE = USE_FEATURE_TAR_CREATE( (1<<OPTBIT_DEREFERENCE )) + 0, // h - OPT_BZIP2 = USE_FEATURE_TAR_BZIP2( (1<<OPTBIT_BZIP2 )) + 0, // j - OPT_LZMA = USE_FEATURE_TAR_LZMA( (1<<OPTBIT_LZMA )) + 0, // a - OPT_INCLUDE_FROM = USE_FEATURE_TAR_FROM( (1<<OPTBIT_INCLUDE_FROM)) + 0, // T - OPT_EXCLUDE_FROM = USE_FEATURE_TAR_FROM( (1<<OPTBIT_EXCLUDE_FROM)) + 0, // X - OPT_GZIP = USE_FEATURE_TAR_GZIP( (1<<OPTBIT_GZIP )) + 0, // z - OPT_COMPRESS = USE_FEATURE_TAR_COMPRESS((1<<OPTBIT_COMPRESS )) + 0, // Z + OPT_CREATE = USE_FEATURE_TAR_CREATE( (1 << OPTBIT_CREATE )) + 0, // c + OPT_DEREFERENCE = USE_FEATURE_TAR_CREATE( (1 << OPTBIT_DEREFERENCE )) + 0, // h + OPT_BZIP2 = USE_FEATURE_SEAMLESS_BZ2( (1 << OPTBIT_BZIP2 )) + 0, // j + OPT_LZMA = USE_FEATURE_SEAMLESS_LZMA((1 << OPTBIT_LZMA )) + 0, // a + OPT_INCLUDE_FROM = USE_FEATURE_TAR_FROM( (1 << OPTBIT_INCLUDE_FROM)) + 0, // T + OPT_EXCLUDE_FROM = USE_FEATURE_TAR_FROM( (1 << OPTBIT_EXCLUDE_FROM)) + 0, // X + OPT_GZIP = USE_FEATURE_SEAMLESS_GZ( (1 << OPTBIT_GZIP )) + 0, // z + OPT_COMPRESS = USE_FEATURE_SEAMLESS_Z( (1 << OPTBIT_COMPRESS )) + 0, // Z OPT_NOPRESERVE_OWN = 1 << OPTBIT_NOPRESERVE_OWN , // no-same-owner OPT_NOPRESERVE_PERM = 1 << OPTBIT_NOPRESERVE_PERM, // no-same-permissions }; @@ -772,20 +772,20 @@ static const char tar_longopts[] ALIGN1 = "create\0" No_argument "c" "dereference\0" No_argument "h" # endif -# if ENABLE_FEATURE_TAR_BZIP2 +# if ENABLE_FEATURE_SEAMLESS_BZ2 "bzip2\0" No_argument "j" # endif -# if ENABLE_FEATURE_TAR_LZMA +# if ENABLE_FEATURE_SEAMLESS_LZMA "lzma\0" No_argument "a" # endif # if ENABLE_FEATURE_TAR_FROM "files-from\0" Required_argument "T" "exclude-from\0" Required_argument "X" # endif -# if ENABLE_FEATURE_TAR_GZIP +# if ENABLE_FEATURE_SEAMLESS_GZ "gzip\0" No_argument "z" # endif -# if ENABLE_FEATURE_TAR_COMPRESS +# if ENABLE_FEATURE_SEAMLESS_Z "compress\0" No_argument "Z" # endif "no-same-owner\0" No_argument "\xfd" @@ -834,12 +834,12 @@ int tar_main(int argc UNUSED_PARAM, char **argv) #endif opt = getopt32(argv, "txC:f:Opvk" - USE_FEATURE_TAR_CREATE( "ch" ) - USE_FEATURE_TAR_BZIP2( "j" ) - USE_FEATURE_TAR_LZMA( "a" ) - USE_FEATURE_TAR_FROM( "T:X:") - USE_FEATURE_TAR_GZIP( "z" ) - USE_FEATURE_TAR_COMPRESS("Z" ) + USE_FEATURE_TAR_CREATE( "ch" ) + USE_FEATURE_SEAMLESS_BZ2( "j" ) + USE_FEATURE_SEAMLESS_LZMA("a" ) + USE_FEATURE_TAR_FROM( "T:X:") + USE_FEATURE_SEAMLESS_GZ( "z" ) + USE_FEATURE_SEAMLESS_Z( "Z" ) , &base_dir // -C dir , &tar_filename // -f filename USE_FEATURE_TAR_FROM(, &(tar_handle->accept)) // T @@ -922,8 +922,7 @@ int tar_main(int argc UNUSED_PARAM, char **argv) tar_stream = stdout; /* Mimicking GNU tar 1.15.1: */ - flags = O_WRONLY|O_CREAT|O_TRUNC; - /* was doing unlink; open(O_WRONLY|O_CREAT|O_EXCL); why? */ + flags = O_WRONLY | O_CREAT | O_TRUNC; } else { tar_stream = stdin; flags = O_RDONLY; @@ -933,7 +932,14 @@ int tar_main(int argc UNUSED_PARAM, char **argv) tar_handle->src_fd = fileno(tar_stream); tar_handle->seek = seek_by_read; } else { - tar_handle->src_fd = xopen(tar_filename, flags); + if (ENABLE_FEATURE_TAR_AUTODETECT && flags == O_RDONLY) { + get_header_ptr = get_header_tar; + tar_handle->src_fd = open_zipped(tar_filename); + if (tar_handle->src_fd < 0) + bb_perror_msg_and_die("can't open '%s'", tar_filename); + } else { + tar_handle->src_fd = xopen(tar_filename, flags); + } } } @@ -947,11 +953,11 @@ int tar_main(int argc UNUSED_PARAM, char **argv) /* create an archive */ if (opt & OPT_CREATE) { -#if ENABLE_FEATURE_TAR_GZIP || ENABLE_FEATURE_TAR_BZIP2 +#if ENABLE_FEATURE_SEAMLESS_GZ || ENABLE_FEATURE_SEAMLESS_BZ2 int zipMode = 0; - if (ENABLE_FEATURE_TAR_GZIP && (opt & OPT_GZIP)) + if (ENABLE_FEATURE_SEAMLESS_GZ && (opt & OPT_GZIP)) zipMode = 1; - if (ENABLE_FEATURE_TAR_BZIP2 && (opt & OPT_BZIP2)) + if (ENABLE_FEATURE_SEAMLESS_BZ2 && (opt & OPT_BZIP2)) zipMode = 2; #endif /* NB: writeTarFile() closes tar_handle->src_fd */ |