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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.
*/
#include <stdio.h>
#include <stdlib.h>
#include <fcntl.h>
#include "busybox.h"
typedef struct ar_headers_s {
char *name;
size_t size;
uid_t uid;
gid_t gid;
mode_t mode;
time_t mtime;
off_t offset;
struct ar_headers_s *next;
} ar_headers_t;
extern ar_headers_t get_headers(int srcFd);
extern int tar_unzip_init(int tarFd);
extern int readTarFile(int tarFd, int extractFlag, int listFlag,
int tostdoutFlag, int verboseFlag, char** extractList,
char** excludeList);
extern int dpkg_deb_main(int argc, char **argv)
{
const int dpkg_deb_contents = 1;
const int dpkg_deb_control = 2;
// const int dpkg_deb_info = 4;
const int dpkg_deb_extract = 8;
const int dpkg_deb_verbose_extract = 16;
int opt=0;
int optflag=0;
int extract_flag = FALSE;
int list_flag = FALSE;
int verbose_flag = FALSE;
int extract_to_stdout = FALSE;
char ar_filename[15];
int srcFd=0;
int status=0;
ar_headers_t *ar_headers = NULL;
char **extract_list=NULL;
char *target_dir=NULL;
while ((opt = getopt(argc, argv, "cexX")) != -1) {
switch (opt) {
case 'c':
optflag |= dpkg_deb_contents;
break;
case 'e':
optflag |= dpkg_deb_control;
break;
/* case 'I':
optflag |= dpkg_deb_info;
break;
*/
case 'x':
optflag |= dpkg_deb_extract;
break;
case 'X':
optflag |= dpkg_deb_verbose_extract;
break;
default:
usage(dpkg_deb_usage);
return EXIT_FAILURE;
}
}
if (((optind + 1 ) > argc) || (optflag == 0)) {
usage(dpkg_deb_usage);
return(EXIT_FAILURE);
}
if (optflag & dpkg_deb_contents) {
list_flag = TRUE;
verbose_flag = TRUE;
strcpy(ar_filename, "data.tar.gz");
}
else if (optflag & dpkg_deb_control) {
extract_flag = TRUE;
strcpy(ar_filename, "control.tar.gz");
if ( (optind + 1) == argc ) {
target_dir = (char *) xmalloc(7);
strcpy(target_dir, "DEBIAN");
}
else {
target_dir = (char *) xmalloc(strlen(argv[optind+1]));
strcpy(target_dir, argv[optind+1]);
}
}
/* else if (optflag & dpkg_deb_info) {
extract_flag = TRUE;
extract_to_stdout = TRUE;
strcpy(ar_filename, "control.tar.gz");
extract_list = argv+optind+1;
printf("list one is [%s]\n",extract_list[0]);
}
*/
else if (optflag & dpkg_deb_extract) {
extract_flag = TRUE;
strcpy(ar_filename, "data.tar.gz");
if ( (optind + 2) > argc ) {
error_msg_and_die("No directory specified\n");
}
target_dir = (char *) xmalloc(strlen(argv[optind+1]));
strcpy(target_dir, argv[optind+1]);
}
else if (optflag & dpkg_deb_verbose_extract) {
extract_flag = TRUE;
list_flag = TRUE;
strcpy(ar_filename, "data.tar.gz");
if ( (optind + 2) > argc ) {
error_msg_and_die("No directory specified\n");
}
target_dir = (char *) xmalloc(strlen(argv[optind+1]));
strcpy(target_dir, argv[optind+1]);
}
ar_headers = (ar_headers_t *) xmalloc(sizeof(ar_headers_t));
srcFd = open(argv[optind], O_RDONLY);
*ar_headers = get_headers(srcFd);
if (ar_headers->next==NULL)
error_msg_and_die("Couldnt find %s in %s\n",ar_filename, argv[optind]);
while (ar_headers->next != NULL) {
if (strcmp(ar_headers->name, ar_filename)==0)
break;
ar_headers = ar_headers->next;
}
lseek(srcFd, ar_headers->offset, SEEK_SET);
srcFd = tar_unzip_init(srcFd);
if ( target_dir != NULL) {
if (is_directory(target_dir, TRUE, NULL)==FALSE) {
mkdir(target_dir, 0755);
}
if (chdir(target_dir)==-1) {
error_msg_and_die("Cannot change to dir %s\n",argv[optind+1]);
}
}
status = readTarFile(srcFd, extract_flag, list_flag, extract_to_stdout, verbose_flag, NULL, extract_list);
close (srcFd);
return(EXIT_SUCCESS);
}
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