2001-06-22 09:22:06 +00:00
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/* vi: set sw=4 ts=4: */
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/*
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* Mini cpio implementation for busybox
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*
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* Copyright (C) 2001 by Glenn McGrath
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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* Limitations:
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* Doesn't check CRC's
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* Only supports new ASCII and CRC formats
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*
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*/
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#include <fcntl.h>
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#include <getopt.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include "busybox.h"
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extern int cpio_main(int argc, char **argv)
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{
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FILE *src_stream = stdin;
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char **extract_names = NULL;
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int extract_function = 0;
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int num_of_entries = 0;
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int opt = 0;
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mode_t oldmask = 0;
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while ((opt = getopt(argc, argv, "idmuvtF:")) != -1) {
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switch (opt) {
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case 'i': // extract
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extract_function |= extract_all_to_fs;
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break;
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2001-06-24 12:36:54 +00:00
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case 'd': // create _leading_ directories
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extract_function |= extract_create_leading_dirs;
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oldmask = umask(077); /* Make make_directory act like GNU cpio */
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2001-06-22 09:22:06 +00:00
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break;
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case 'm': // preserve modification time
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extract_function |= extract_preserve_date;
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break;
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case 'v': // verbosly list files
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extract_function |= extract_verbose_list;
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break;
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case 'u': // unconditional
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extract_function |= extract_unconditional;
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break;
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case 't': // list files
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extract_function |= extract_list;
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break;
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case 'F':
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src_stream = xfopen(optarg, "r");
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break;
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default:
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show_usage();
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}
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}
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if (extract_function & extract_all_to_fs && extract_function & extract_list) {
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extract_function ^= extract_all_to_fs; /* If specify t, don't extract*/
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}
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if (extract_function & extract_all_to_fs && extract_function & extract_verbose_list) { /* The meaning of v changes on extract */
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extract_function ^= extract_verbose_list;
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extract_function |= extract_list;
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}
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extract_names = malloc(4);
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while (optind < argc) {
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num_of_entries++;
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*extract_names = realloc(*extract_names, num_of_entries);
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extract_names[num_of_entries - 1] = xstrdup(argv[optind]);
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optind++;
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}
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unarchive(src_stream, &get_header_cpio, extract_function, "./", extract_names);
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if (oldmask) umask(oldmask); /* Restore umask if we changed it */
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return EXIT_SUCCESS;
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}
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