X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=archival%2Fdpkg_deb.c;h=f94c90c55f5ba2564c3783b3ff306eda3f877250;hb=4e12b1a2a9e68685dff61acaee1e1f6c377d978c;hp=c0843818915451ac87bbb6910081fd55ea86c078;hpb=67991cf824f8df27e74c92d754fb507681c69ce6;p=oweals%2Fbusybox.git diff --git a/archival/dpkg_deb.c b/archival/dpkg_deb.c index c08438189..f94c90c55 100644 --- a/archival/dpkg_deb.c +++ b/archival/dpkg_deb.c @@ -1,170 +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" -/* - * Merge this applet into dpkg when dpkg becomes more stable - */ +#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 -#include -#include -#include -#include -#include -#include -#include "busybox.h" +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 opt; + const char *extract_dir; + int need_args; -typedef struct ar_headers_s { - char *name; - size_t size; - uid_t uid; - gid_t gid; - mode_t mode; - time_t mtime; - off_t offset; - struct ar_headers_s *next; -} ar_headers_t; + /* Setup the tar archive handle */ + tar_archive = init_handle(); -extern ar_headers_t get_ar_headers(int srcFd); -extern int tar_unzip_init(int tarFd); -extern int readTarFile(int tarFd, int extractFlag, int listFlag, - int tostdoutFlag, int verboseFlag, char** extractList, char** excludeList); + /* 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; -static const int dpkg_deb_contents = 1; -static const int dpkg_deb_control = 2; -// const int dpkg_deb_info = 4; -static const int dpkg_deb_extract = 8; -static const int dpkg_deb_verbose_extract = 16; -static const int dpkg_deb_list = 32; +#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 -extern int deb_extract(int optflags, const char *dir_name, const char *deb_filename) -{ - char **extract_list = NULL; - ar_headers_t *ar_headers = NULL; - char ar_filename[15]; - int extract_flag = FALSE; - int list_flag = FALSE; - int verbose_flag = FALSE; - int extract_to_stdout = FALSE; - int srcFd = 0; - int status; +#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 (dpkg_deb_contents == (dpkg_deb_contents & optflags)) { - strcpy(ar_filename, "data.tar.gz"); - verbose_flag = TRUE; - list_flag = TRUE; + if (opt & DPKG_DEB_OPT_CONTENTS) { + tar_archive->action_header = header_verbose_list; } - if (dpkg_deb_list == (dpkg_deb_list & optflags)) { - strcpy(ar_filename, "data.tar.gz"); - list_flag = TRUE; + 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 (dpkg_deb_control == (dpkg_deb_control & optflags)) { - strcpy(ar_filename, "control.tar.gz"); - extract_flag = TRUE; + 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; } - if (dpkg_deb_extract == (dpkg_deb_extract & optflags)) { - strcpy(ar_filename, "data.tar.gz"); - extract_flag = TRUE; + if (opt & DPKG_DEB_OPT_EXTRACT) { + tar_archive->action_header = header_list; } - if (dpkg_deb_verbose_extract == (dpkg_deb_verbose_extract & optflags)) { - strcpy(ar_filename, "data.tar.gz"); - extract_flag = TRUE; - list_flag = TRUE; + if (opt & (DPKG_DEB_OPT_EXTRACT_VERBOSE | DPKG_DEB_OPT_EXTRACT)) { + tar_archive->action_data = data_extract_all; + need_args = 2; } - ar_headers = (ar_headers_t *) xmalloc(sizeof(ar_headers_t)); - srcFd = open(deb_filename, O_RDONLY); - - *ar_headers = get_ar_headers(srcFd); - if (ar_headers->next == NULL) { - error_msg_and_die("Couldnt find %s in %s", ar_filename, deb_filename); + if (need_args != argc) { + bb_show_usage(); } - while (ar_headers->next != NULL) { - if (strcmp(ar_headers->name, ar_filename) == 0) { - break; - } - ar_headers = ar_headers->next; + tar_archive->src_fd = ar_archive->src_fd = xopen(argv[0], O_RDONLY); + + /* Work out where to extract the files */ + /* 2nd argument is a dir name */ + if (argv[1]) { + extract_dir = argv[1]; } - lseek(srcFd, ar_headers->offset, SEEK_SET); - srcFd = tar_unzip_init(srcFd); - if ( dir_name != NULL) { - if (is_directory(dir_name, TRUE, NULL)==FALSE) { - mkdir(dir_name, 0755); - } - if (chdir(dir_name)==-1) { - error_msg_and_die("Cannot change to dir %s", dir_name); - } + if (extract_dir) { + mkdir(extract_dir, 0777); /* bb_make_directory(extract_dir, 0777, 0) */ + xchdir(extract_dir); } - status = readTarFile(srcFd, extract_flag, list_flag, extract_to_stdout, verbose_flag, NULL, extract_list); - return status; -} + /* Do it */ + unpack_ar_archive(ar_archive); -extern int dpkg_deb_main(int argc, char **argv) -{ - char *target_dir = NULL; - int opt = 0; - int optflag = 0; - - while ((opt = getopt(argc, argv, "cexXl")) != -1) { - switch (opt) { - case 'c': - optflag |= dpkg_deb_contents; - break; - case 'e': - optflag |= dpkg_deb_control; - break; - case 'X': - optflag |= dpkg_deb_verbose_extract; - break; - case 'x': - optflag |= dpkg_deb_extract; - break; - case 'l': - optflag |= dpkg_deb_list; - break; -/* case 'I': - optflag |= dpkg_deb_info; - break; -*/ - default: - show_usage(); - } - } + /* Cleanup */ + if (ENABLE_FEATURE_CLEAN_UP) + close(ar_archive->src_fd); - if (((optind + 1 ) > argc) || (optflag == 0)) { - show_usage(); - } - if ((optflag & dpkg_deb_control) || (optflag & dpkg_deb_extract) || (optflag & dpkg_deb_verbose_extract)) { - if ( (optind + 1) == argc ) { - target_dir = (char *) xmalloc(7); - strcpy(target_dir, "DEBIAN"); - } else { - target_dir = (char *) xmalloc(strlen(argv[optind + 1])); - strcpy(target_dir, argv[optind + 1]); - } - } - deb_extract(optflag, target_dir, argv[optind]); -/* else if (optflag & dpkg_deb_info) { - extract_flag = TRUE; - extract_to_stdout = TRUE; - strcpy(ar_filename, "control.tar.gz"); - extract_list = argv+optind+1; - printf("list one is [%s]\n",extract_list[0]); - } -*/ - return(EXIT_SUCCESS); + return EXIT_SUCCESS; }