X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=archival%2Fdpkg_deb.c;h=5d814d7ef2e3547998ae8721b9b488d5a9ddb3c3;hb=0d0260fd1e55c39525660370094d090bc5412fe5;hp=c4673955332994b5b21bd3c45e85b3b45bc9ea35;hpb=18bbca18acf229875f2bb60cc37c3e8c22d237bc;p=oweals%2Fbusybox.git diff --git a/archival/dpkg_deb.c b/archival/dpkg_deb.c index c46739553..5d814d7ef 100644 --- a/archival/dpkg_deb.c +++ b/archival/dpkg_deb.c @@ -1,124 +1,121 @@ +/* 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. */ -#include -#include -#include -#include -#include -#include "unarchive.h" -#include "busybox.h" -extern int dpkg_deb_main(int argc, char **argv) +//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 "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; - int opt = 0; -#ifndef CONFIG_FEATURE_DPKG_DEB_EXTRACT_ONLY - const llist_t *control_tar_llist = NULL; -#endif -#ifndef CONFIG_AR - char magic[7]; -#endif - - /* a .deb file is an ar archive that contain three files, - * data.tar.gz, control.tar.gz and debian - */ - + 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 */ + /* 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 - ar_archive->accept = add_to_list(NULL, "data.tar.gz"); -# ifndef CONFIG_FEATURE_DPKG_DEB_EXTRACT_ONLY - control_tar_llist = add_to_list(NULL, "control.tar.gz"); -# endif +#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 - ar_archive->accept = add_to_list(ar_archive->accept, "data.tar.bz2"); -# ifndef CONFIG_FEATURE_DPKG_DEB_EXTRACT_ONLY - control_tar_llist = add_to_list(control_tar_llist, "control.tar.bz2"); -# 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 - -#ifndef CONFIG_FEATURE_DPKG_DEB_EXTRACT_ONLY - while ((opt = getopt(argc, argv, "cefXx")) != -1) { -#else - while ((opt = getopt(argc, argv, "x")) != -1) { +#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 - switch (opt) { -#ifndef CONFIG_FEATURE_DPKG_DEB_EXTRACT_ONLY - case 'c': - tar_archive->action_header = header_verbose_list; - break; - case 'e': - ar_archive->accept = control_tar_llist; - tar_archive->action_data = data_extract_all; - break; - case 'f': - /* Print the entire control file - * it should accept a second argument which specifies a - * specific field to print */ - ar_archive->accept = control_tar_llist; - tar_archive->accept = add_to_list(NULL, "./control");; - tar_archive->filter = filter_accept_list; - tar_archive->action_data = data_extract_to_stdout; - break; - case 'X': - tar_archive->action_header = header_list; -#endif - case 'x': - tar_archive->action_data = data_extract_all; - break; - default: - show_usage(); + + 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 (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 (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; + } - if (optind + 2 < argc) { - show_usage(); + 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 */ - mkdir(argv[optind], 0777); - chdir(argv[optind]); - -#ifdef CONFIG_AR - unpack_ar_archive(ar_archive); -#else - xread_all(ar_archive->src_fd, magic, 7); - if (strncmp(magic, "!", 7) != 0) { - error_msg_and_die("Invalid ar magic"); + if (argv[1]) { + extract_dir = argv[1]; + } + if (extract_dir) { + mkdir(extract_dir, 0777); /* bb_make_directory(extract_dir, 0777, 0) */ + xchdir(extract_dir); } - ar_archive->offset += 7; - while (get_header_ar(ar_archive) == EXIT_SUCCESS); -#endif + /* 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; } -