X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=archival%2Fdpkg_deb.c;h=f94c90c55f5ba2564c3783b3ff306eda3f877250;hb=4e12b1a2a9e68685dff61acaee1e1f6c377d978c;hp=d088828857b86730f1ebf9233374300f93a9a8fc;hpb=33431ebb9ace3fba76138198596f8155c2e14354;p=oweals%2Fbusybox.git diff --git a/archival/dpkg_deb.c b/archival/dpkg_deb.c index d08882885..f94c90c55 100644 --- a/archival/dpkg_deb.c +++ b/archival/dpkg_deb.c @@ -1,109 +1,104 @@ +/* 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 -#include -#include -#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; }