Fail silently if a partial tar header is read as tar.bz2 is leaving trailing junk (not sure why), add some missing files

archival/libunarchive/get_header_tar_bz2.c

@@ -0,0 +1,39 @@
+/*
+ *  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 Library 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 <sys/types.h>
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include "libbb.h"
+#include "unarchive.h"
+
+extern char get_header_tar_bz2(archive_handle_t *archive_handle)
+{
+	BZ2_bzReadOpen(archive_handle->src_fd, NULL, 0);
+
+	archive_handle->offset = 0;
+	while (get_header_tar(archive_handle) == EXIT_SUCCESS);
+
+	/* Cleanup */
+	BZ2_bzReadClose();
+	
+	/* Can only do one tar.bz2 per archive */
+	return(EXIT_FAILURE);
+}
+