hush/archival/dpkg_deb.c

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/*
* 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.
*/
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#include <fcntl.h>
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#include <stdlib.h>
#include <string.h>
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#include <unistd.h>
#include <getopt.h>
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#include "unarchive.h"
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#include "busybox.h"
extern int dpkg_deb_main(int argc, char **argv)
{
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archive_handle_t *ar_archive;
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archive_handle_t *tar_archive;
int opt = 0;
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#ifndef CONFIG_FEATURE_DPKG_DEB_EXTRACT_ONLY
llist_t *control_tar_llist = NULL;
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#endif
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/* Setup the tar archive handle */
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tar_archive = init_handle();
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/* Setup an ar archive handle that refers to the gzip sub archive */
ar_archive = init_handle();
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ar_archive->sub_archive = tar_archive;
ar_archive->filter = filter_accept_list_reassign;
#ifdef CONFIG_FEATURE_DEB_TAR_GZ
ar_archive->accept = llist_add_to(NULL, "data.tar.gz");
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# ifndef CONFIG_FEATURE_DPKG_DEB_EXTRACT_ONLY
control_tar_llist = llist_add_to(NULL, "control.tar.gz");
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# endif
#endif
#ifdef CONFIG_FEATURE_DEB_TAR_BZ2
ar_archive->accept = llist_add_to(ar_archive->accept, "data.tar.bz2");
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# ifndef CONFIG_FEATURE_DPKG_DEB_EXTRACT_ONLY
control_tar_llist = llist_add_to(control_tar_llist, "control.tar.bz2");
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# endif
#endif
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#ifndef CONFIG_FEATURE_DPKG_DEB_EXTRACT_ONLY
while ((opt = getopt(argc, argv, "cefXx")) != -1) {
#else
while ((opt = getopt(argc, argv, "x")) != -1) {
#endif
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switch (opt) {
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#ifndef CONFIG_FEATURE_DPKG_DEB_EXTRACT_ONLY
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case 'c':
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tar_archive->action_header = header_verbose_list;
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break;
case 'e':
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ar_archive->accept = control_tar_llist;
tar_archive->action_data = data_extract_all;
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break;
case 'f':
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/* Print the entire control file
* it should accept a second argument which specifies a
* specific field to print */
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ar_archive->accept = control_tar_llist;
tar_archive->accept = llist_add_to(NULL, "./control");;
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tar_archive->filter = filter_accept_list;
tar_archive->action_data = data_extract_to_stdout;
break;
case 'X':
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tar_archive->action_header = header_list;
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#endif
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case 'x':
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tar_archive->action_data = data_extract_all;
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break;
default:
show_usage();
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}
}
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if (optind + 2 < argc) {
show_usage();
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}
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tar_archive->src_fd = ar_archive->src_fd = xopen(argv[optind++], O_RDONLY);
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/* Workout where to extract the files */
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/* 2nd argument is a dir name */
mkdir(argv[optind], 0777);
chdir(argv[optind]);
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unpack_ar_archive(ar_archive);
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/* Cleanup */
close (ar_archive->src_fd);
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return(EXIT_SUCCESS);
}
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