X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=archival%2Fdpkg_deb.c;h=80a5f3250c84293dd58f9635bf4808077f0b0b2e;hb=5e618ff4393019ee24765877d49cb9001f7df992;hp=309f8d7628c2809c57afa449105427b3120c5aa0;hpb=fdefbbbe85b852ba6de361c8f53d025b09b9abbe;p=oweals%2Fbusybox.git diff --git a/archival/dpkg_deb.c b/archival/dpkg_deb.c index 309f8d762..80a5f3250 100644 --- a/archival/dpkg_deb.c +++ b/archival/dpkg_deb.c @@ -1,184 +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 "busybox.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) +{ + 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; -/* From gunzip.c */ -extern int gz_open(FILE *compressed_file, int *pid); -extern void gz_close(int gunzip_pid); + /* Setup the tar archive handle */ + tar_archive = init_handle(); -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 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; -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); +#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 -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; +#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 -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; - pid_t pid; - FILE *comp_file = NULL; + opt_complementary = "?c--efXx:e--cfXx:f--ceXx:X--cefx:x--cefX"; + opt = getopt32(argc, argv, "cefXx"); - 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; + 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 { + argcount++; + } } - 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), "./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; + argcount = 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 ((optind + argcount) != argc) { + bb_show_usage(); } - while (ar_headers->next != NULL) { - if (strcmp(ar_headers->name, ar_filename) == 0) { - break; - } - ar_headers = ar_headers->next; - } - lseek(srcFd, ar_headers->offset, SEEK_SET); - /* Uncompress the file */ - comp_file = fdopen(srcFd, "r"); - if ((srcFd = gz_open(comp_file, &pid)) == EXIT_FAILURE) { - error_msg_and_die("Couldnt unzip file"); + tar_archive->src_fd = ar_archive->src_fd = xopen(argv[optind++], O_RDONLY); + + /* Workout where to extract the files */ + /* 2nd argument is a dir name */ + if (argv[optind]) { + extract_dir = argv[optind]; } - 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); - close(srcFd); - gz_close(pid); - fclose(comp_file); - - return status; -} + 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 */ + 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); }