diff options
| -rw-r--r-- | archival/dpkg_deb.c | 77 |
1 files changed, 34 insertions, 43 deletions
diff --git a/archival/dpkg_deb.c b/archival/dpkg_deb.c index d34de25..8685046 100644 --- a/archival/dpkg_deb.c +++ b/archival/dpkg_deb.c @@ -22,14 +22,14 @@ //kbuild:lib-$(CONFIG_DPKG_DEB) += dpkg_deb.o //usage:#define dpkg_deb_trivial_usage -//usage: "[-cefxX] FILE [argument]" +//usage: "[-cefxX] FILE [DIR]" //usage:#define dpkg_deb_full_usage "\n\n" -//usage: "Perform actions on Debian packages (.debs)\n" -//usage: "\n -c List contents of filesystem tree" -//usage: "\n -e Extract control files to [argument] directory" -//usage: "\n -f Display control field name starting with [argument]" -//usage: "\n -x Extract packages filesystem tree to directory" -//usage: "\n -X Verbose extract" +//usage: "Perform actions on Debian packages (.deb)\n" +//usage: "\n -c List files" +//usage: "\n -f Print control fields" +//usage: "\n -e Extract control files to DIR (default: ./DEBIAN)" +//usage: "\n -x Extract files to DIR (no default)" +//usage: "\n -X Verbose -x" //usage: //usage:#define dpkg_deb_example_usage //usage: "$ dpkg-deb -X ./busybox_0.48-1_i386.deb /tmp\n" @@ -40,18 +40,17 @@ #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_EXTRACT_VERBOSE 8 +#define DPKG_DEB_OPT_EXTRACT 16 int dpkg_deb_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; -int dpkg_deb_main(int argc, char **argv) +int dpkg_deb_main(int argc UNUSED_PARAM, 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; /* Setup the tar archive handle */ tar_archive = init_handle(); @@ -80,53 +79,45 @@ int dpkg_deb_main(int argc, char **argv) llist_add_to(&control_tar_llist, (char*)"control.tar.xz"); #endif - opt_complementary = "c--efXx:e--cfXx:f--ceXx:X--cefx:x--cefX"; + /* Must have 1 or 2 args */ + opt_complementary = "-1:?2:c--efXx:e--cfXx:f--ceXx:X--cefx:x--cefX"; opt = getopt32(argv, "cefXx"); argv += optind; - argc -= optind; + //argc -= optind; - if (opt & DPKG_DEB_OPT_CONTENTS) { + extract_dir = argv[1]; + if (opt & DPKG_DEB_OPT_CONTENTS) { // -c tar_archive->action_header = header_verbose_list; + if (extract_dir) + bb_show_usage(); } - 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 */ + if (opt & DPKG_DEB_OPT_FIELD) { // -f + /* Print the entire control file */ +//TODO: standard tool accepts an optional list of fields 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 (extract_dir) + bb_show_usage(); } - if (opt & DPKG_DEB_OPT_EXTRACT) { - tar_archive->action_header = header_list; - } - if (opt & (DPKG_DEB_OPT_EXTRACT_VERBOSE | DPKG_DEB_OPT_EXTRACT)) { + if (opt & DPKG_DEB_OPT_CONTROL) { // -e + ar_archive->accept = control_tar_llist; tar_archive->action_data = data_extract_all; - need_args = 2; + if (!extract_dir) + extract_dir = "./DEBIAN"; } - - if (need_args != argc) { - bb_show_usage(); + if (opt & (DPKG_DEB_OPT_EXTRACT_VERBOSE | DPKG_DEB_OPT_EXTRACT)) { // -Xx + if (opt & DPKG_DEB_OPT_EXTRACT_VERBOSE) + tar_archive->action_header = header_list; + tar_archive->action_data = data_extract_all; + if (!extract_dir) + bb_show_usage(); } - tar_archive->src_fd = ar_archive->src_fd = xopen(argv[0], O_RDONLY); + /* Standard tool supports "-" */ + tar_archive->src_fd = ar_archive->src_fd = xopen_stdin(argv[0]); - /* 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); |