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 int bunzip2_main(int argc, char **argv)
32 const int bunzip_to_stdout = 1;
33 const int bunzip_force = 2;
40 char *save_name = NULL;
41 char *delete_name = NULL;
43 /* if called as bzcat */
44 if (strcmp(applet_name, "bzcat") == 0)
45 flags |= bunzip_to_stdout;
47 while ((opt = getopt(argc, argv, "cfh")) != -1) {
50 flags |= bunzip_to_stdout;
53 flags |= bunzip_force;
57 show_usage(); /* exit's inside usage */
61 /* Set input filename and number */
62 if (argv[optind] == NULL || strcmp(argv[optind], "-") == 0) {
63 flags |= bunzip_to_stdout;
64 src_fd = fileno(stdin);
67 src_fd = xopen(argv[optind], O_RDONLY);
69 save_name = xstrdup(argv[optind]);
70 if (strcmp(save_name + strlen(save_name) - 4, ".bz2") != 0)
71 error_msg_and_die("Invalid extension");
72 save_name[strlen(save_name) - 4] = '\0';
75 /* Check that the input is sane. */
76 if (isatty(src_fd) && (flags & bunzip_force) == 0) {
77 error_msg_and_die("compressed data not read from terminal. Use -f to force it.");
80 if (flags & bunzip_to_stdout) {
81 dst_fd = fileno(stdout);
83 dst_fd = xopen(save_name, O_WRONLY | O_CREAT);
86 if (uncompressStream(src_fd, dst_fd)) {
87 if (!(flags & bunzip_to_stdout)) {
88 delete_name = argv[optind];
90 status = EXIT_SUCCESS;
92 if (!(flags & bunzip_to_stdout)) {
93 delete_name = save_name;
95 status = EXIT_FAILURE;
98 if ((delete_name) && (unlink(delete_name) < 0)) {
99 error_msg_and_die("Couldn't remove %s", delete_name);