2 * Modified for busybox by Glenn McGrath <bug1@optushome.com.au>
3 * Added support output to stdout by Thomas Lundquist <thomasez@zelow.no>
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
28 #include "unarchive.h"
30 #define BUNZIP2_OPT_STDOUT 1
31 #define BUNZIP2_OPT_FORCE 2
33 int bunzip2_main(int argc, char **argv)
35 char *compressed_name;
42 opt = bb_getopt_ulflags(argc, argv, "cf");
44 /* if called as bzcat force the stdout flag */
45 if (bb_applet_name[2] == 'c') {
46 opt |= BUNZIP2_OPT_STDOUT;
49 /* Set input filename and number */
50 compressed_name = argv[optind];
51 if ((compressed_name) && (compressed_name[0] != '-') && (compressed_name[1] != '\0')) {
53 src_fd = bb_xopen(compressed_name, O_RDONLY);
55 src_fd = fileno(stdin);
56 opt |= BUNZIP2_OPT_STDOUT;
59 /* Check that the input is sane. */
60 if (isatty(src_fd) && (opt & BUNZIP2_OPT_FORCE) == 0) {
61 bb_error_msg_and_die("compressed data not read from terminal. Use -f to force it.");
64 if (opt & BUNZIP2_OPT_STDOUT) {
65 dst_fd = fileno(stdout);
67 int len = strlen(compressed_name) - 4;
68 if (strcmp(compressed_name + len, ".bz2") != 0) {
69 bb_error_msg_and_die("Invalid extension");
71 save_name = bb_xstrndup(compressed_name, len);
72 dst_fd = bb_xopen(save_name, O_WRONLY | O_CREAT);
75 status = uncompressStream(src_fd, dst_fd);
76 if(!(opt & BUNZIP2_OPT_STDOUT)) {
79 delete_name = save_name;
81 delete_name = compressed_name;
83 if (unlink(delete_name) < 0) {
84 bb_error_msg_and_die("Couldn't remove %s", delete_name);