1/* vi: set sw=4 ts=4: */
2/*
3 *  Copyright (C) 2002 by Glenn McGrath
4 *
5 * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
6 */
7
8#include "libbb.h"
9#include "unarchive.h"
10
11/*
12 * Reassign the subarchive metadata parser based on the filename extension
13 * e.g. if its a .tar.gz modify archive_handle->sub_archive to process a .tar.gz
14 * or if its a .tar.bz2 make archive_handle->sub_archive handle that
15 */
16char filter_accept_list_reassign(archive_handle_t *archive_handle)
17{
18	/* Check the file entry is in the accept list */
19	if (find_list_entry(archive_handle->accept, archive_handle->file_header->name)) {
20		const char *name_ptr;
21
22		/* Extract the last 2 extensions */
23		name_ptr = strrchr(archive_handle->file_header->name, '.');
24
25		/* Modify the subarchive handler based on the extension */
26#if ENABLE_FEATURE_DEB_TAR_GZ
27		if (strcmp(name_ptr, ".gz") == 0) {
28			archive_handle->action_data_subarchive = get_header_tar_gz;
29			return EXIT_SUCCESS;
30		}
31#endif
32#if ENABLE_FEATURE_DEB_TAR_BZ2
33		if (strcmp(name_ptr, ".bz2") == 0) {
34			archive_handle->action_data_subarchive = get_header_tar_bz2;
35			return EXIT_SUCCESS;
36		}
37#endif
38		if (ENABLE_FEATURE_DEB_TAR_LZMA && !strcmp(name_ptr, ".lzma")) {
39			archive_handle->action_data_subarchive = get_header_tar_lzma;
40			return EXIT_SUCCESS;
41		}
42	}
43	return EXIT_FAILURE;
44}
45