+/* vi: set sw=4 ts=4: */
/*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
+ * dpkg-deb packs, unpacks and provides information about Debian archives.
*
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU Library General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
*/
+#include "libbb.h"
+#include "unarchive.h"
-#include <stdlib.h>
-#include <string.h>
-#include <getopt.h>
-#include "busybox.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
-extern int dpkg_deb_main(int argc, char **argv)
+int dpkg_deb_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
+int dpkg_deb_main(int argc, char **argv)
{
- char *argument = NULL;
- char *output_buffer = NULL;
- int opt = 0;
- int optflag = 0;
-
- while ((opt = getopt(argc, argv, "ceftXxI")) != -1) {
- switch (opt) {
- case 'c':
- optflag |= extract_contents;
- break;
- case 'e':
- optflag |= extract_control;
- break;
- case 'f':
- optflag |= extract_field;
- break;
- case 't':
- optflag |= extract_fsys_tarfile;
- break;
- case 'X':
- optflag |= extract_verbose_extract;
- break;
- case 'x':
- optflag |= extract_extract;
- break;
- case 'I':
- optflag |= extract_info;
- break;
- default:
- show_usage();
+ archive_handle_t *ar_archive;
+ archive_handle_t *tar_archive;
+ llist_t *control_tar_llist = NULL;
+ 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->filter = filter_accept_list_reassign;
+
+#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_SEAMLESS_BZ2
+ llist_add_to(&(ar_archive->accept), (char*)"data.tar.bz2");
+ llist_add_to(&control_tar_llist, (char*)"control.tar.bz2");
+#endif
+
+ 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 (1 == argc) {
+ extract_dir = "./DEBIAN";
+ } else {
+ need_args++;
}
}
-
- if (optind == argc) {
- show_usage();
+ if (opt & DPKG_DEB_OPT_FIELD) {
+ /* Print the entire control file
+ * 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), (char*)"./control");
+ tar_archive->filter = filter_accept_list;
+ tar_archive->action_data = data_extract_to_stdout;
}
-
- switch (optflag) {
- case (extract_control):
- case (extract_extract):
- case (extract_verbose_extract):
- /* argument is a dir name */
- if ( (optind + 1) == argc ) {
- argument = xstrdup("DEBIAN");
- } else {
- argument = xstrdup(argv[optind + 1]);
- }
- break;
- case (extract_field):
- /* argument is a control field name */
- if ((optind + 1) != argc) {
- argument = xstrdup(argv[optind + 1]);
- }
- break;
- case (extract_info):
- /* argument is a control field name */
- if ((optind + 1) != argc) {
- argument = xstrdup(argv[optind + 1]);
- break;
- } else {
- error_msg("-I currently requires a filename to be specifies");
- return(EXIT_FAILURE);
- }
- /* argument is a filename */
- default:
+ if (opt & DPKG_DEB_OPT_EXTRACT) {
+ tar_archive->action_header = header_list;
+ }
+ if (opt & (DPKG_DEB_OPT_EXTRACT_VERBOSE | DPKG_DEB_OPT_EXTRACT)) {
+ tar_archive->action_data = data_extract_all;
+ need_args = 2;
}
- output_buffer = deb_extract(argv[optind], optflag, argument, NULL);
+ if (need_args != argc) {
+ bb_show_usage();
+ }
- if (optflag & extract_field) {
- char *field = NULL;
- int field_length = 0;
- int field_start = 0;
+ tar_archive->src_fd = ar_archive->src_fd = xopen(argv[0], O_RDONLY);
- while ((field = read_package_field(&output_buffer[field_start])) != NULL) {
- field_length = strlen(field);
- field_start += (field_length + 1);
- if (strstr(field, argument) == field) {
- printf("%s\n", field + strlen(argument) + 2);
- }
- free(field);
- }
+ /* Work out where to extract the files */
+ /* 2nd argument is a dir name */
+ if (argv[1]) {
+ extract_dir = argv[1];
+ }
+ if (extract_dir) {
+ mkdir(extract_dir, 0777); /* bb_make_directory(extract_dir, 0777, 0) */
+ xchdir(extract_dir);
}
- return(EXIT_SUCCESS);
+ /* Do it */
+ unpack_ar_archive(ar_archive);
+
+ /* Cleanup */
+ if (ENABLE_FEATURE_CLEAN_UP)
+ close(ar_archive->src_fd);
+
+ return EXIT_SUCCESS;
}
projects / oweals / busybox.git / blobdiff