| /* vi: set sw=4 ts=4: */ |
| /* |
| * Mini cpio implementation for busybox |
| * |
| * Copyright (C) 2001 by Glenn McGrath |
| * |
| * 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 |
| * 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 |
| * |
| * Limitations: |
| * Doesn't check CRC's |
| * Only supports new ASCII and CRC formats |
| * |
| */ |
| #include <fcntl.h> |
| #include <getopt.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #include <unistd.h> |
| #include "busybox.h" |
| |
| extern int cpio_main(int argc, char **argv) |
| { |
| FILE *src_stream = stdin; |
| char **extract_names = NULL; |
| int extract_function = 0; |
| int num_of_entries = 0; |
| int opt = 0; |
| mode_t oldmask = 0; |
| |
| while ((opt = getopt(argc, argv, "idmuvtF:")) != -1) { |
| switch (opt) { |
| case 'i': // extract |
| extract_function |= extract_all_to_fs; |
| break; |
| case 'd': // create _leading_ directories |
| extract_function |= extract_create_leading_dirs; |
| oldmask = umask(077); /* Make make_directory act like GNU cpio */ |
| break; |
| case 'm': // preserve modification time |
| extract_function |= extract_preserve_date; |
| break; |
| case 'v': // verbosly list files |
| extract_function |= extract_verbose_list; |
| break; |
| case 'u': // unconditional |
| extract_function |= extract_unconditional; |
| break; |
| case 't': // list files |
| extract_function |= extract_list; |
| break; |
| case 'F': |
| src_stream = xfopen(optarg, "r"); |
| break; |
| default: |
| show_usage(); |
| } |
| } |
| |
| if ((extract_function & extract_all_to_fs) && (extract_function & extract_list)) { |
| extract_function ^= extract_all_to_fs; /* If specify t, don't extract*/ |
| } |
| |
| if ((extract_function & extract_all_to_fs) && (extract_function & extract_verbose_list)) { |
| /* The meaning of v changes on extract */ |
| extract_function ^= extract_verbose_list; |
| extract_function |= extract_list; |
| } |
| |
| while (optind < argc) { |
| extract_names = xrealloc(extract_names, sizeof(char *) * (num_of_entries + 2)); |
| extract_names[num_of_entries] = xstrdup(argv[optind]); |
| num_of_entries++; |
| extract_names[num_of_entries] = NULL; |
| optind++; |
| } |
| |
| unarchive(src_stream, stdout, &get_header_cpio, extract_function, "./", extract_names, NULL); |
| if (oldmask) { |
| umask(oldmask); /* Restore umask if we changed it */ |
| } |
| return EXIT_SUCCESS; |
| } |
| |