/* 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 "unarchive.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; }