mirror of
https://github.com/sheumann/hush.git
synced 2024-11-05 06:07:00 +00:00
90 lines
2.4 KiB
C
90 lines
2.4 KiB
C
/* vi: set sw=4 ts=4: */
|
|
/*
|
|
* Mini ar implementation for busybox
|
|
*
|
|
* Copyright (C) 2000 by Glenn McGrath
|
|
* Written by Glenn McGrath <bug1@optushome.com.au> 1 June 2000
|
|
*
|
|
* Based in part on BusyBox tar, Debian dpkg-deb and GNU ar.
|
|
*
|
|
* 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
|
|
*
|
|
*/
|
|
#include <fcntl.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <getopt.h>
|
|
#include <unistd.h>
|
|
#include "busybox.h"
|
|
|
|
extern int ar_main(int argc, char **argv)
|
|
{
|
|
FILE *src_stream = NULL;
|
|
char **extract_names = NULL;
|
|
char ar_magic[8];
|
|
int extract_function = extract_unconditional;
|
|
int opt;
|
|
int num_of_entries = 0;
|
|
extern off_t archive_offset;
|
|
|
|
while ((opt = getopt(argc, argv, "ovtpx")) != -1) {
|
|
switch (opt) {
|
|
case 'o':
|
|
extract_function |= extract_preserve_date;
|
|
break;
|
|
case 'v':
|
|
extract_function |= extract_verbose_list;
|
|
break;
|
|
case 't':
|
|
extract_function |= extract_list;
|
|
break;
|
|
case 'p':
|
|
extract_function |= extract_to_stdout;
|
|
break;
|
|
case 'x':
|
|
extract_function |= extract_all_to_fs;
|
|
break;
|
|
default:
|
|
show_usage();
|
|
}
|
|
}
|
|
|
|
/* check the src filename was specified */
|
|
if (optind == argc) {
|
|
show_usage();
|
|
}
|
|
|
|
src_stream = xfopen(argv[optind++], "r");
|
|
|
|
/* check ar magic */
|
|
fread(ar_magic, 1, 8, src_stream);
|
|
archive_offset = 8;
|
|
if (strncmp(ar_magic,"!<arch>",7) != 0) {
|
|
error_msg_and_die("invalid magic");
|
|
}
|
|
|
|
/* Create a list of files to extract */
|
|
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_ar, extract_function, "./", extract_names);
|
|
return EXIT_SUCCESS;
|
|
}
|