X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=archival%2Fdpkg_deb.c;h=d11d9df175e1383c8eb688c88c1040707a6d0193;hb=f824136f6b21558ac023bc53bcb69294e0676103;hp=a933c69483010a221ea82e2f43c96a7d30e64dfb;hpb=c3fbec73fb45997918bef927cea519866e1e1c9d;p=oweals%2Fbusybox.git diff --git a/archival/dpkg_deb.c b/archival/dpkg_deb.c index a933c6948..d11d9df17 100644 --- a/archival/dpkg_deb.c +++ b/archival/dpkg_deb.c @@ -1,130 +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 "busybox.h" +#include "unarchive.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) { - char *prefix = NULL; - char *filename = NULL; - char *output_buffer = NULL; - int opt = 0; - int arg_type = 0; - int deb_extract_funct = extract_create_leading_dirs | extract_unconditional; - - const int arg_type_prefix = 1; - const int arg_type_field = 2; - const int arg_type_filename = 4; -// const int arg_type_un_ar_gz = 8; + archive_handle_t *ar_archive; + archive_handle_t *tar_archive; + llist_t *control_tar_llist = NULL; + unsigned opt; + char *extract_dir = NULL; + short argcount = 1; - while ((opt = getopt(argc, argv, "ceftXxI")) != -1) { - switch (opt) { - case 'c': - deb_extract_funct |= extract_data_tar_gz; - deb_extract_funct |= extract_verbose_list; - break; - case 'e': - arg_type = arg_type_prefix; - deb_extract_funct |= extract_control_tar_gz; - deb_extract_funct |= extract_all_to_fs; - break; - case 'f': - arg_type = arg_type_field; - deb_extract_funct |= extract_control_tar_gz; - deb_extract_funct |= extract_one_to_buffer; - filename = xstrdup("./control"); - break; - case 't': /* --fsys-tarfile, i just made up this short name */ - /* Integrate the functionality needed with some code from ar.c */ - error_msg_and_die("Option disabled"); -// arg_type = arg_type_un_ar_gz; - break; - case 'X': - arg_type = arg_type_prefix; - deb_extract_funct |= extract_data_tar_gz; - deb_extract_funct |= extract_all_to_fs; - deb_extract_funct |= extract_list; - case 'x': - arg_type = arg_type_prefix; - deb_extract_funct |= extract_data_tar_gz; - deb_extract_funct |= extract_all_to_fs; - break; - case 'I': - arg_type = arg_type_filename; - deb_extract_funct |= extract_control_tar_gz; - deb_extract_funct |= extract_one_to_buffer; - break; - default: - show_usage(); - } - } + /* Setup the tar archive handle */ + tar_archive = init_handle(); - if (optind == argc) { - show_usage(); - } + /* 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; - /* Workout where to extract the files */ - if (arg_type == arg_type_prefix) { - /* argument is a dir name */ - if ((optind + 1) == argc ) { - prefix = xstrdup("./DEBIAN/"); +#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 + +#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 + + 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 { - prefix = (char *) xmalloc(strlen(argv[optind + 1]) + 2); - strcpy(prefix, argv[optind + 1]); - /* Make sure the directory has a trailing '/' */ - if (last_char_is(prefix, '/') == NULL) { - strcat(prefix, "/"); - } + argcount++; } - mkdir(prefix, 0777); + } + 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 (arg_type == arg_type_filename) { - if ((optind + 1) != argc) { - filename = xstrdup(argv[optind + 1]); - } else { - error_msg_and_die("-I currently requires a filename to be specified"); - } + if ((optind + argcount) != argc) { + bb_show_usage(); } - output_buffer = deb_extract(argv[optind], stdout, deb_extract_funct, prefix, filename); + tar_archive->src_fd = ar_archive->src_fd = xopen(argv[optind++], O_RDONLY); - if ((arg_type == arg_type_filename) && (output_buffer != NULL)) { - puts(output_buffer); + /* Workout where to extract the files */ + /* 2nd argument is a dir name */ + if (argv[optind]) { + extract_dir = argv[optind]; } - else if (arg_type == arg_type_field) { - char *field = NULL; - char *name; - char *value; - int field_start = 0; - - while (1) { - field_start += read_package_field(&output_buffer[field_start], &name, &value); - if (name == NULL) { - break; - } - if (strcmp(name, argv[optind + 1]) == 0) { - puts(value); - } - free(field); - } + 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); - return(EXIT_SUCCESS); + return EXIT_SUCCESS; }