Initial public busybox upstream commit
[busybox4maemo] / archival / libunarchive / filter_accept_list_reassign.c
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  */
16 char 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 }