2006-07-02 19:47:05 +00:00
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/* vi: set sw=4 ts=4: */
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2002-11-03 07:28:38 +00:00
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/*
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2004-04-25 05:11:19 +00:00
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* Modified for busybox by Glenn McGrath <bug1@iinet.net.au>
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2002-11-03 07:28:38 +00:00
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* Added support output to stdout by Thomas Lundquist <thomasez@zelow.no>
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*
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2006-04-17 22:49:30 +00:00
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* Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
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2002-11-03 07:28:38 +00:00
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*/
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2001-10-05 03:48:57 +00:00
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2002-11-03 07:28:38 +00:00
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#include "busybox.h"
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#include "unarchive.h"
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2001-10-05 03:48:57 +00:00
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2004-01-05 11:49:55 +00:00
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#define BUNZIP2_OPT_STDOUT 1
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#define BUNZIP2_OPT_FORCE 2
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2007-02-03 17:28:39 +00:00
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int bunzip2_main(int argc, char **argv);
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2001-10-05 03:48:57 +00:00
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int bunzip2_main(int argc, char **argv)
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{
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2006-10-01 15:55:11 +00:00
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USE_DESKTOP(long long) int status;
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2005-08-30 20:26:17 +00:00
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char *filename;
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2006-10-03 21:00:06 +00:00
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unsigned opt;
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2006-10-01 15:55:11 +00:00
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int src_fd, dst_fd;
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2001-11-18 14:20:25 +00:00
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2006-10-03 21:00:06 +00:00
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opt = getopt32(argc, argv, "cf");
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2001-11-18 14:20:25 +00:00
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2002-03-27 17:31:01 +00:00
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/* Set input filename and number */
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2005-08-30 20:26:17 +00:00
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filename = argv[optind];
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2006-12-16 23:49:13 +00:00
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if (filename && NOT_LONE_DASH(filename)) {
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2002-03-27 17:31:01 +00:00
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/* Open input file */
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2006-08-03 15:41:12 +00:00
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src_fd = xopen(filename, O_RDONLY);
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2004-01-05 11:49:55 +00:00
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} else {
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2004-03-27 10:02:48 +00:00
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src_fd = STDIN_FILENO;
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2005-08-30 20:26:17 +00:00
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filename = 0;
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2001-10-05 03:48:57 +00:00
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}
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2005-09-11 01:05:30 +00:00
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2005-08-30 20:26:17 +00:00
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/* if called as bzcat force the stdout flag */
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2006-10-03 21:00:43 +00:00
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if ((opt & BUNZIP2_OPT_STDOUT) || applet_name[2] == 'c')
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2005-08-30 20:26:17 +00:00
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filename = 0;
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2002-03-27 17:31:01 +00:00
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/* Check that the input is sane. */
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2004-01-05 11:49:55 +00:00
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if (isatty(src_fd) && (opt & BUNZIP2_OPT_FORCE) == 0) {
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2006-10-12 20:06:18 +00:00
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bb_error_msg_and_die("compressed data not read from terminal, "
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"use -f to force it");
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2002-11-03 14:05:15 +00:00
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}
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2001-11-18 14:20:25 +00:00
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2005-08-30 20:26:17 +00:00
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if (filename) {
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2006-06-13 14:54:42 +00:00
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struct stat stat_buf;
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2006-09-03 14:23:29 +00:00
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/* extension = filename+strlen(filename)-4 is buggy:
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* strlen may be less than 4 */
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char *extension = strrchr(filename, '.');
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if (!extension || strcmp(extension, ".bz2") != 0) {
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2006-09-27 23:31:08 +00:00
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bb_error_msg_and_die("invalid extension");
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2004-01-05 11:49:55 +00:00
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}
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2006-06-13 16:09:16 +00:00
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xstat(filename, &stat_buf);
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2006-09-03 14:23:29 +00:00
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*extension = '\0';
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dst_fd = xopen3(filename, O_WRONLY | O_CREAT | O_TRUNC,
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stat_buf.st_mode);
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2005-08-30 20:26:17 +00:00
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} else dst_fd = STDOUT_FILENO;
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2003-10-29 03:37:54 +00:00
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status = uncompressStream(src_fd, dst_fd);
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2006-09-27 23:31:08 +00:00
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if (filename) {
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2006-10-01 15:55:11 +00:00
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if (status >= 0) filename[strlen(filename)] = '.';
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2005-08-30 20:26:17 +00:00
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if (unlink(filename) < 0) {
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2006-09-27 23:31:08 +00:00
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bb_error_msg_and_die("cannot remove %s", filename);
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2002-11-03 14:05:15 +00:00
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}
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2002-03-27 17:46:44 +00:00
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}
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return status;
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2001-10-05 03:48:57 +00:00
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}
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