X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=archival%2Fdpkg_deb.c;h=d11d9df175e1383c8eb688c88c1040707a6d0193;hb=f824136f6b21558ac023bc53bcb69294e0676103;hp=06a810cc1cf6f820feb907f0bd53a3d295930186;hpb=7ca04f328e22fcbee4659d73f9a72dfdf1dd6a23;p=oweals%2Fbusybox.git diff --git a/archival/dpkg_deb.c b/archival/dpkg_deb.c index 06a810cc1..d11d9df17 100644 --- a/archival/dpkg_deb.c +++ b/archival/dpkg_deb.c @@ -1,112 +1,96 @@ +/* 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 -#include -#include -#include -#include -#include "unarchive.h" #include "busybox.h" +#include "unarchive.h" -extern int dpkg_deb_main(int argc, char **argv) +#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) { archive_handle_t *ar_archive; - archive_handle_t *tar_gz_archive; - int opt = 0; -#ifndef CONFIG_FEATURE_DPKG_DEB_EXTRACT_ONLY - const llist_t *control_tar_gz_llist = add_to_list(NULL, "control.tar.gz"); -#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 - */ - + archive_handle_t *tar_archive; + llist_t *control_tar_llist = NULL; + unsigned opt; + char *extract_dir = NULL; + short argcount = 1; + /* Setup the tar archive handle */ - tar_gz_archive = init_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->action_data_subarchive = get_header_tar_gz; - ar_archive->sub_archive = tar_gz_archive; - ar_archive->filter = filter_accept_list; - ar_archive->accept = add_to_list(NULL, "data.tar.gz"); + ar_archive->sub_archive = tar_archive; + ar_archive->filter = filter_accept_list_reassign; -#ifndef CONFIG_FEATURE_DPKG_DEB_EXTRACT_ONLY - while ((opt = getopt(argc, argv, "cefXx")) != -1) { -#else - while ((opt = getopt(argc, argv, "x")) != -1) { +#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 - switch (opt) { -#ifndef CONFIG_FEATURE_DPKG_DEB_EXTRACT_ONLY - case 'c': - tar_gz_archive->action_header = header_verbose_list; - break; - case 'e': - ar_archive->accept = control_tar_gz_llist; - tar_gz_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_gz_llist; - tar_gz_archive->accept = add_to_list(NULL, "./control");; - tar_gz_archive->filter = filter_accept_list; - tar_gz_archive->action_data = data_extract_to_stdout; - break; - case 'X': - tar_gz_archive->action_header = header_list; + +#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 - case 'x': - tar_gz_archive->action_data = data_extract_all; - break; - default: - show_usage(); + + 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 { + 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 (optind + 2 < argc) { - show_usage(); + if ((optind + argcount) != argc) { + bb_show_usage(); } - tar_gz_archive->src_fd = ar_archive->src_fd = xopen(argv[optind++], O_RDONLY); + tar_archive->src_fd = ar_archive->src_fd = xopen(argv[optind++], O_RDONLY); /* Workout 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[optind]) { + extract_dir = argv[optind]; } - ar_archive->offset += 7; - - while (get_header_ar(ar_archive) == EXIT_SUCCESS); -#endif + 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); + close(ar_archive->src_fd); - return(EXIT_SUCCESS); + return EXIT_SUCCESS; } -