+/* 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 source tree.
*/
-/*
- * Merge this applet into dpkg when dpkg becomes more stable
- */
+//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 <stdio.h>
-#include <stdlib.h>
-#include <fcntl.h>
-#include <unistd.h>
-#include <string.h>
-#include <stdlib.h>
-#include <signal.h>
-#include "busybox.h"
+#include "libbb.h"
+#include "bb_archive.h"
-/* From gunzip.c */
-extern int gz_open(FILE *compressed_file, int *pid);
-extern void gz_close(int gunzip_pid);
+#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 tar_unzip_init(int tarFd);
-extern int readTarFile(int tarFd, int extractFlag, int listFlag,
- int tostdoutFlag, int verboseFlag, char** extractList, char** excludeList);
+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 opt;
+ const char *extract_dir;
+ int need_args;
-static const int dpkg_deb_contents = 1;
-static const int dpkg_deb_control = 2;
-// const int dpkg_deb_info = 4;
-static const int dpkg_deb_extract = 8;
-static const int dpkg_deb_verbose_extract = 16;
-static const int dpkg_deb_list = 32;
+ /* Setup the tar archive handle */
+ tar_archive = init_handle();
-extern int deb_extract(int optflags, const char *dir_name, const char *deb_filename)
-{
- char **extract_list = NULL;
- ar_headers_t *ar_headers = NULL;
- char ar_filename[15];
- int extract_flag = FALSE;
- int list_flag = FALSE;
- int verbose_flag = FALSE;
- int extract_to_stdout = FALSE;
- int srcFd = 0;
- int status;
- pid_t pid;
- FILE *comp_file = NULL;
+ /* Setup an ar archive handle that refers to the gzip sub archive */
+ ar_archive = init_handle();
+ ar_archive->dpkg__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
+#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 (dpkg_deb_contents == (dpkg_deb_contents & optflags)) {
- strcpy(ar_filename, "data.tar.gz");
- verbose_flag = TRUE;
- list_flag = TRUE;
+ 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;
}
- if (dpkg_deb_list == (dpkg_deb_list & optflags)) {
- strcpy(ar_filename, "data.tar.gz");
- list_flag = TRUE;
+ 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 (dpkg_deb_control == (dpkg_deb_control & optflags)) {
- strcpy(ar_filename, "control.tar.gz");
- extract_flag = TRUE;
+ 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;
}
- if (dpkg_deb_extract == (dpkg_deb_extract & optflags)) {
- strcpy(ar_filename, "data.tar.gz");
- extract_flag = TRUE;
+ if (opt & DPKG_DEB_OPT_EXTRACT) {
+ tar_archive->action_header = header_list;
}
- if (dpkg_deb_verbose_extract == (dpkg_deb_verbose_extract & optflags)) {
- strcpy(ar_filename, "data.tar.gz");
- extract_flag = TRUE;
- list_flag = TRUE;
+ if (opt & (DPKG_DEB_OPT_EXTRACT_VERBOSE | DPKG_DEB_OPT_EXTRACT)) {
+ tar_archive->action_data = data_extract_all;
+ need_args = 2;
}
- ar_headers = (ar_headers_t *) xmalloc(sizeof(ar_headers_t));
- srcFd = open(deb_filename, O_RDONLY);
-
- *ar_headers = get_ar_headers(srcFd);
- if (ar_headers->next == NULL) {
- error_msg_and_die("Couldnt find %s in %s", ar_filename, deb_filename);
+ if (need_args != argc) {
+ bb_show_usage();
}
- while (ar_headers->next != NULL) {
- if (strcmp(ar_headers->name, ar_filename) == 0) {
- break;
- }
- ar_headers = ar_headers->next;
- }
- lseek(srcFd, ar_headers->offset, SEEK_SET);
- /* Uncompress the file */
- comp_file = fdopen(srcFd, "r");
- if ((srcFd = gz_open(comp_file, &pid)) == EXIT_FAILURE) {
- error_msg_and_die("Couldnt unzip file");
+ tar_archive->src_fd = ar_archive->src_fd = xopen(argv[0], O_RDONLY);
+
+ /* Work out where to extract the files */
+ /* 2nd argument is a dir name */
+ if (argv[1]) {
+ extract_dir = argv[1];
}
- if ( dir_name != NULL) {
- if (is_directory(dir_name, TRUE, NULL)==FALSE) {
- mkdir(dir_name, 0755);
- }
- if (chdir(dir_name)==-1) {
- error_msg_and_die("Cannot change to dir %s", dir_name);
- }
+ if (extract_dir) {
+ mkdir(extract_dir, 0777); /* bb_make_directory(extract_dir, 0777, 0) */
+ xchdir(extract_dir);
}
- status = readTarFile(srcFd, extract_flag, list_flag,
- extract_to_stdout, verbose_flag, NULL, extract_list);
-
- /* we are deliberately terminating the child so we can safely ignore this */
- signal(SIGTERM, SIG_IGN);
- gz_close(pid);
- close(srcFd);
- fclose(comp_file);
- return status;
-}
+ /* Do it */
+ unpack_ar_archive(ar_archive);
-extern int dpkg_deb_main(int argc, char **argv)
-{
- char *target_dir = NULL;
- int opt = 0;
- int optflag = 0;
-
- while ((opt = getopt(argc, argv, "cexXl")) != -1) {
- switch (opt) {
- case 'c':
- optflag |= dpkg_deb_contents;
- break;
- case 'e':
- optflag |= dpkg_deb_control;
- break;
- case 'X':
- optflag |= dpkg_deb_verbose_extract;
- break;
- case 'x':
- optflag |= dpkg_deb_extract;
- break;
- case 'l':
- optflag |= dpkg_deb_list;
- break;
-/* case 'I':
- optflag |= dpkg_deb_info;
- break;
-*/
- default:
- show_usage();
- }
- }
+ /* Cleanup */
+ if (ENABLE_FEATURE_CLEAN_UP)
+ close(ar_archive->src_fd);
- if (((optind + 1 ) > argc) || (optflag == 0)) {
- show_usage();
- }
- if ((optflag & dpkg_deb_control) || (optflag & dpkg_deb_extract) || (optflag & dpkg_deb_verbose_extract)) {
- if ( (optind + 1) == argc ) {
- target_dir = (char *) xmalloc(7);
- strcpy(target_dir, "DEBIAN");
- } else {
- target_dir = (char *) xmalloc(strlen(argv[optind + 1]));
- strcpy(target_dir, argv[optind + 1]);
- }
- }
- deb_extract(optflag, target_dir, argv[optind]);
-/* else if (optflag & dpkg_deb_info) {
- extract_flag = TRUE;
- extract_to_stdout = TRUE;
- strcpy(ar_filename, "control.tar.gz");
- extract_list = argv+optind+1;
- printf("list one is [%s]\n",extract_list[0]);
- }
-*/
- return(EXIT_SUCCESS);
+ return EXIT_SUCCESS;
}
projects / oweals / busybox.git / blobdiff