X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=archival%2Fdpkg_deb.c;h=0285273fec82770fe229040bdc14f8f43fc05d7a;hb=8e92df15b512d108901ce1762e917518553a8aaf;hp=1ceaa60e06ac72e54c60ad9f846b2db3ec52fb72;hpb=0b42a6a8cf94dd05434cf5554449a6b19d47fb1e;p=oweals%2Fbusybox.git diff --git a/archival/dpkg_deb.c b/archival/dpkg_deb.c index 1ceaa60e0..0285273fe 100644 --- a/archival/dpkg_deb.c +++ b/archival/dpkg_deb.c @@ -1,73 +1,111 @@ +/* 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. - * - * 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. + * dpkg-deb packs, unpacks and provides information about Debian archives. * + * Licensed under GPLv2 or later, see file LICENSE in this source tree. */ -#include -#include -#include -#include -#include "unarchive.h" -#include "busybox.h" +//config:config DPKG_DEB +//config: bool "dpkg_deb" +//config: default n +//config: select FEATURE_SEAMLESS_GZ +//config: help +//config: dpkg-deb unpacks and provides information about Debian archives. +//config: +//config: This implementation of dpkg-deb cannot pack archives. +//config: +//config: Unless you have a specific application which requires dpkg-deb, +//config: say N here. +//config: +//config:config FEATURE_DPKG_DEB_EXTRACT_ONLY +//config: bool "Extract only (-x)" +//config: default n +//config: depends on DPKG_DEB +//config: help +//config: This reduces dpkg-deb to the equivalent of +//config: "ar -p data.tar.gz | tar -zx". However it saves space as none +//config: of the extra dpkg-deb, ar or tar options are needed, they are linked +//config: to internally. + +//applet:IF_DPKG_DEB(APPLET_ODDNAME(dpkg-deb, dpkg_deb, BB_DIR_USR_BIN, BB_SUID_DROP, dpkg_deb)) +//kbuild:lib-$(CONFIG_DPKG_DEB) += dpkg_deb.o + +//usage:#define dpkg_deb_trivial_usage +//usage: "[-cefxX] FILE [argument]" +//usage:#define dpkg_deb_full_usage "\n\n" +//usage: "Perform actions on Debian packages (.debs)\n" +//usage: "\n -c List contents of filesystem tree" +//usage: "\n -e Extract control files to [argument] directory" +//usage: "\n -f Display control field name starting with [argument]" +//usage: "\n -x Extract packages filesystem tree to directory" +//usage: "\n -X Verbose extract" +//usage: +//usage:#define dpkg_deb_example_usage +//usage: "$ dpkg-deb -X ./busybox_0.48-1_i386.deb /tmp\n" + +#include "libbb.h" +#include "bb_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 +#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) { archive_handle_t *ar_archive; archive_handle_t *tar_archive; llist_t *control_tar_llist = NULL; - unsigned long opt; - char *extract_dir = NULL; - short argcount = 1; + 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->dpkg__sub_archive = tar_archive; ar_archive->filter = filter_accept_list_reassign; -#ifdef CONFIG_FEATURE_DEB_TAR_GZ - ar_archive->accept = llist_add_to(NULL, "data.tar.gz"); - control_tar_llist = llist_add_to(NULL, "control.tar.gz"); + llist_add_to(&ar_archive->accept, (char*)"data.tar"); + llist_add_to(&control_tar_llist, (char*)"control.tar"); +#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 = llist_add_to(ar_archive->accept, "data.tar.bz2"); - control_tar_llist = llist_add_to(control_tar_llist, "control.tar.bz2"); +#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 ENABLE_FEATURE_SEAMLESS_XZ + llist_add_to(&ar_archive->accept, (char*)"data.tar.xz"); + llist_add_to(&control_tar_llist, (char*)"control.tar.xz"); #endif - bb_opt_complementally = "!c~efXx:e~cfXx:f~ceXx:X~cefx:x~cefX"; - opt = bb_getopt_ulflags(argc, argv, "cefXx"); + 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 (optind + 1 == argc) { + if (1 == argc) { extract_dir = "./DEBIAN"; } else { - argcount++; + need_args++; } } if (opt & DPKG_DEB_OPT_FIELD) { @@ -75,7 +113,7 @@ extern int dpkg_deb_main(int argc, char **argv) * it should accept a second argument which specifies a * specific field to print */ ar_archive->accept = control_tar_llist; - tar_archive->accept = llist_add_to(NULL, "./control"); + llist_add_to(&(tar_archive->accept), (char*)"./control"); tar_archive->filter = filter_accept_list; tar_archive->action_data = data_extract_to_stdout; } @@ -84,28 +122,31 @@ extern int dpkg_deb_main(int argc, char **argv) } if (opt & (DPKG_DEB_OPT_EXTRACT_VERBOSE | DPKG_DEB_OPT_EXTRACT)) { tar_archive->action_data = data_extract_all; - argcount = 2; + need_args = 2; } - if ((optind + argcount) != argc) { + if (need_args != argc) { bb_show_usage(); } - tar_archive->src_fd = ar_archive->src_fd = bb_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 */ - if (argv[optind]) { - extract_dir = argv[optind]; + if (argv[1]) { + extract_dir = argv[1]; } if (extract_dir) { - mkdir(extract_dir, 0777); - chdir(extract_dir); + mkdir(extract_dir, 0777); /* bb_make_directory(extract_dir, 0777, 0) */ + xchdir(extract_dir); } + + /* 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; }