+/* 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 <stdlib.h>
-#include <string.h>
-#include <getopt.h>
#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
-extern int dpkg_deb_main(int argc, char **argv)
+int dpkg_deb_main(int argc, char **argv)
{
- char *prefix = NULL;
- char *filename = NULL;
- char *output_buffer = NULL;
- int opt = 0;
- int arg_type = 0;
- int deb_extract_funct = 0;
-
- const int arg_type_prefix = 1;
- const int arg_type_field = 2;
- const int arg_type_filename = 4;
-// const int arg_type_un_ar_gz = 8;
+ archive_handle_t *ar_archive;
+ archive_handle_t *tar_archive;
+ llist_t *control_tar_llist = NULL;
+ unsigned opt;
+ char *extract_dir = NULL;
+ short argcount = 1;
- while ((opt = getopt(argc, argv, "ceftXxI")) != -1) {
- switch (opt) {
- case 'c':
- deb_extract_funct |= extract_data_tar_gz;
- deb_extract_funct |= extract_verbose_list;
- break;
- case 'e':
- arg_type = arg_type_prefix;
- deb_extract_funct |= extract_control_tar_gz;
- deb_extract_funct |= extract_all_to_fs;
- break;
- case 'f':
- arg_type = arg_type_field;
- deb_extract_funct |= extract_control_tar_gz;
- deb_extract_funct |= extract_one_to_buffer;
- filename = xstrdup("./control");
- break;
- case 't': /* --fsys-tarfile, i just made up this short name */
- /* Integrate the functionality needed with some code from ar.c */
- error_msg_and_die("Option disabled");
-// arg_type = arg_type_un_ar_gz;
- break;
- case 'X':
- arg_type = arg_type_prefix;
- deb_extract_funct |= extract_data_tar_gz;
- deb_extract_funct |= extract_all_to_fs;
- deb_extract_funct |= extract_list;
- case 'x':
- arg_type = arg_type_prefix;
- deb_extract_funct |= extract_data_tar_gz;
- deb_extract_funct |= extract_all_to_fs;
- break;
- case 'I':
- arg_type = arg_type_filename;
- deb_extract_funct |= extract_control_tar_gz;
- deb_extract_funct |= extract_one_to_buffer;
- break;
- default:
- show_usage();
- }
- }
+ /* Setup the tar archive handle */
+ tar_archive = init_handle();
- if (optind == argc) {
- show_usage();
- }
+ /* 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;
- /* Workout where to extract the files */
- if (arg_type == arg_type_prefix) {
- /* argument is a dir name */
- if ((optind + 1) == argc ) {
- prefix = xstrdup("./DEBIAN/");
+#ifdef CONFIG_FEATURE_DEB_TAR_GZ
+ llist_add_to(&(ar_archive->accept), "data.tar.gz");
+ llist_add_to(&control_tar_llist, "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");
+#endif
+
+ opt_complementary = "?c--efXx:e--cfXx:f--ceXx:X--cefx:x--cefX";
+ opt = getopt32(argc, argv, "cefXx");
+
+ if (opt & DPKG_DEB_OPT_CONTENTS) {
+ tar_archive->action_header = header_verbose_list;
+ }
+ if (opt & DPKG_DEB_OPT_CONTROL) {
+ ar_archive->accept = control_tar_llist;
+ tar_archive->action_data = data_extract_all;
+ if (optind + 1 == argc) {
+ extract_dir = "./DEBIAN";
} else {
- prefix = (char *) xmalloc(strlen(argv[optind + 1]) + 2);
- strcpy(prefix, argv[optind + 1]);
- /* Make sure the directory has a trailing '/' */
- if (last_char_is(prefix, '/') == NULL) {
- strcat(prefix, "/");
- }
+ argcount++;
}
}
+ 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), "./control");
+ tar_archive->filter = filter_accept_list;
+ tar_archive->action_data = data_extract_to_stdout;
+ }
+ 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;
+ argcount = 2;
+ }
- if (arg_type == arg_type_filename) {
- if ((optind + 1) != argc) {
- filename = xstrdup(argv[optind + 1]);
- } else {
- error_msg_and_die("-I currently requires a filename to be specified");
- }
+ if ((optind + argcount) != argc) {
+ bb_show_usage();
}
- output_buffer = deb_extract(argv[optind], stdout, deb_extract_funct, prefix, filename);
+ tar_archive->src_fd = ar_archive->src_fd = xopen(argv[optind++], O_RDONLY);
- if ((arg_type == arg_type_filename) && (output_buffer != NULL)) {
- puts(output_buffer);
+ /* Workout where to extract the files */
+ /* 2nd argument is a dir name */
+ if (argv[optind]) {
+ extract_dir = argv[optind];
}
- else if (arg_type == arg_type_field) {
- char *field = NULL;
- int field_start = 0;
-
- while ((field = read_package_field(&output_buffer[field_start])) != NULL) {
- field_start += (strlen(field) + 1);
- if (strstr(field, argv[optind + 1]) == field) {
- puts(field + strlen(argv[optind + 1]) + 2);
- }
- free(field);
- }
+ if (extract_dir) {
+ mkdir(extract_dir, 0777); /* bb_make_directory(extract_dir, 0777, 0) */
+ xchdir(extract_dir);
}
+ unpack_ar_archive(ar_archive);
+
+ /* Cleanup */
+ close (ar_archive->src_fd);
return(EXIT_SUCCESS);
}
projects / oweals / busybox.git / blobdiff