Show cpio.c syntax highlighted
/* 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);
if (oldmask) {
umask(oldmask); /* Restore umask if we changed it */
}
return EXIT_SUCCESS;
}
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