/*
* dpkg-deb packs, unpacks and provides information about Debian archives.
*
- * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
+ * Licensed under GPLv2 or later, see file LICENSE in this source tree.
*/
-#include "busybox.h"
-#include "unarchive.h"
-#define DPKG_DEB_OPT_CONTENTS 1
-#define DPKG_DEB_OPT_CONTROL 2
-#define DPKG_DEB_OPT_FIELD 4
-#define DPKG_DEB_OPT_EXTRACT 8
-#define DPKG_DEB_OPT_EXTRACT_VERBOSE 16
+//config:config DPKG_DEB
+//config: bool "dpkg_deb"
+//config: default n
+//config: select FEATURE_SEAMLESS_GZ
+//config: help
+//config: dpkg-deb unpacks and provides information about Debian archives.
+//config:
+//config: This implementation of dpkg-deb cannot pack archives.
+//config:
+//config: Unless you have a specific application which requires dpkg-deb,
+//config: say N here.
+//config:
+//config:config FEATURE_DPKG_DEB_EXTRACT_ONLY
+//config: bool "Extract only (-x)"
+//config: default n
+//config: depends on DPKG_DEB
+//config: help
+//config: This reduces dpkg-deb to the equivalent of
+//config: "ar -p <deb> data.tar.gz | tar -zx". However it saves space as none
+//config: of the extra dpkg-deb, ar or tar options are needed, they are linked
+//config: to internally.
+//applet:IF_DPKG_DEB(APPLET_ODDNAME(dpkg-deb, dpkg_deb, BB_DIR_USR_BIN, BB_SUID_DROP, dpkg_deb))
+//kbuild:lib-$(CONFIG_DPKG_DEB) += dpkg_deb.o
+
+//usage:#define dpkg_deb_trivial_usage
+//usage: "[-cefxX] FILE [argument]"
+//usage:#define dpkg_deb_full_usage "\n\n"
+//usage: "Perform actions on Debian packages (.debs)\n"
+//usage: "\n -c List contents of filesystem tree"
+//usage: "\n -e Extract control files to [argument] directory"
+//usage: "\n -f Display control field name starting with [argument]"
+//usage: "\n -x Extract packages filesystem tree to directory"
+//usage: "\n -X Verbose extract"
+//usage:
+//usage:#define dpkg_deb_example_usage
+//usage: "$ dpkg-deb -X ./busybox_0.48-1_i386.deb /tmp\n"
+
+#include "libbb.h"
+#include "bb_archive.h"
+
+#define DPKG_DEB_OPT_CONTENTS 1
+#define DPKG_DEB_OPT_CONTROL 2
+#define DPKG_DEB_OPT_FIELD 4
+#define DPKG_DEB_OPT_EXTRACT 8
+#define DPKG_DEB_OPT_EXTRACT_VERBOSE 16
+
+int dpkg_deb_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
int dpkg_deb_main(int argc, char **argv)
{
archive_handle_t *ar_archive;
archive_handle_t *tar_archive;
llist_t *control_tar_llist = NULL;
- unsigned long opt;
- char *extract_dir = NULL;
- short argcount = 1;
+ unsigned opt;
+ const char *extract_dir;
+ int need_args;
/* Setup the tar archive handle */
tar_archive = init_handle();
/* Setup an ar archive handle that refers to the gzip sub archive */
ar_archive = init_handle();
- ar_archive->sub_archive = tar_archive;
+ ar_archive->dpkg__sub_archive = tar_archive;
ar_archive->filter = filter_accept_list_reassign;
-#ifdef CONFIG_FEATURE_DEB_TAR_GZ
- llist_add_to(&(ar_archive->accept), "data.tar.gz");
- llist_add_to(&control_tar_llist, "control.tar.gz");
+ llist_add_to(&ar_archive->accept, (char*)"data.tar");
+ llist_add_to(&control_tar_llist, (char*)"control.tar");
+#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
-
-#ifdef CONFIG_FEATURE_DEB_TAR_BZ2
- llist_add_to(&(ar_archive->accept), "data.tar.bz2");
- llist_add_to(&control_tar_llist, "control.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
+#if ENABLE_FEATURE_SEAMLESS_LZMA
+ llist_add_to(&ar_archive->accept, (char*)"data.tar.lzma");
+ llist_add_to(&control_tar_llist, (char*)"control.tar.lzma");
+#endif
+#if ENABLE_FEATURE_SEAMLESS_XZ
+ llist_add_to(&ar_archive->accept, (char*)"data.tar.xz");
+ llist_add_to(&control_tar_llist, (char*)"control.tar.xz");
#endif
- bb_opt_complementally = "?c--efXx:e--cfXx:f--ceXx:X--cefx:x--cefX";
- opt = bb_getopt_ulflags(argc, argv, "cefXx");
+ opt_complementary = "c--efXx:e--cfXx:f--ceXx:X--cefx:x--cefX";
+ opt = getopt32(argv, "cefXx");
+ argv += optind;
+ argc -= optind;
if (opt & DPKG_DEB_OPT_CONTENTS) {
tar_archive->action_header = header_verbose_list;
}
+ extract_dir = NULL;
+ need_args = 1;
if (opt & DPKG_DEB_OPT_CONTROL) {
ar_archive->accept = control_tar_llist;
tar_archive->action_data = data_extract_all;
- if (optind + 1 == argc) {
+ if (1 == argc) {
extract_dir = "./DEBIAN";
} else {
- argcount++;
+ need_args++;
}
}
if (opt & DPKG_DEB_OPT_FIELD) {
* it should accept a second argument which specifies a
* specific field to print */
ar_archive->accept = control_tar_llist;
- llist_add_to(&(tar_archive->accept), "./control");
+ llist_add_to(&(tar_archive->accept), (char*)"./control");
tar_archive->filter = filter_accept_list;
tar_archive->action_data = data_extract_to_stdout;
}
}
if (opt & (DPKG_DEB_OPT_EXTRACT_VERBOSE | DPKG_DEB_OPT_EXTRACT)) {
tar_archive->action_data = data_extract_all;
- argcount = 2;
+ need_args = 2;
}
- if ((optind + argcount) != argc) {
+ if (need_args != argc) {
bb_show_usage();
}
- tar_archive->src_fd = ar_archive->src_fd = xopen(argv[optind++], O_RDONLY);
+ tar_archive->src_fd = ar_archive->src_fd = xopen(argv[0], O_RDONLY);
- /* Workout where to extract the files */
+ /* Work out where to extract the files */
/* 2nd argument is a dir name */
- if (argv[optind]) {
- extract_dir = argv[optind];
+ if (argv[1]) {
+ extract_dir = argv[1];
}
if (extract_dir) {
mkdir(extract_dir, 0777); /* bb_make_directory(extract_dir, 0777, 0) */
xchdir(extract_dir);
}
+
+ /* Do it */
unpack_ar_archive(ar_archive);
/* Cleanup */
- close (ar_archive->src_fd);
+ if (ENABLE_FEATURE_CLEAN_UP)
+ close(ar_archive->src_fd);
- return(EXIT_SUCCESS);
+ return EXIT_SUCCESS;
}
projects / oweals / busybox.git / blobdiff