1 | /*
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2 | * Copyright (C) 2002 by Glenn McGrath
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3 | *
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4 | * This program is free software; you can redistribute it and/or modify
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5 | * it under the terms of the GNU General Public License as published by
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6 | * the Free Software Foundation; either version 2 of the License, or
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7 | * (at your option) any later version.
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8 | *
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9 | * This program is distributed in the hope that it will be useful,
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10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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12 | * GNU General Public License for more details.
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13 | *
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14 | * You should have received a copy of the GNU General Public License
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15 | * along with this program; if not, write to the Free Software
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16 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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17 | */
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18 |
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19 | #include <stdlib.h>
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20 | #include <string.h>
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21 | #include <unistd.h>
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22 |
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23 | #include "libbb.h"
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24 | #include "unarchive.h"
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25 |
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26 | /*
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27 | * Reassign the subarchive metadata parser based on the filename extension
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28 | * e.g. if its a .tar.gz modify archive_handle->sub_archive to process a .tar.gz
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29 | * or if its a .tar.bz2 make archive_handle->sub_archive handle that
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30 | */
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31 | char filter_accept_list_reassign(archive_handle_t *archive_handle)
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32 | {
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33 | /* Check the file entry is in the accept list */
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34 | if (find_list_entry(archive_handle->accept, archive_handle->file_header->name)) {
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35 | const char *name_ptr;
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36 |
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37 | /* Extract the last 2 extensions */
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38 | name_ptr = strrchr(archive_handle->file_header->name, '.');
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39 |
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40 | /* Modify the subarchive handler based on the extension */
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41 | #ifdef CONFIG_FEATURE_DEB_TAR_GZ
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42 | if (strcmp(name_ptr, ".gz") == 0) {
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43 | archive_handle->action_data_subarchive = get_header_tar_gz;
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44 | return(EXIT_SUCCESS);
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45 | }
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46 | #endif
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47 | #ifdef CONFIG_FEATURE_DEB_TAR_BZ2
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48 | if (strcmp(name_ptr, ".bz2") == 0) {
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49 | archive_handle->action_data_subarchive = get_header_tar_bz2;
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50 | return(EXIT_SUCCESS);
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51 | }
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52 | #endif
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53 | if (ENABLE_FEATURE_DEB_TAR_LZMA && !strcmp(name_ptr, ".lzma")) {
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54 | archive_handle->action_data_subarchive = get_header_tar_lzma;
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55 | return(EXIT_SUCCESS);
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56 | }
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57 | }
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58 | return(EXIT_FAILURE);
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59 | }
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