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/*
* Mini losetup implementation for busybox
*
* Copyright (C) 2002 Matt Kraai.
*
* 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
* 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 <getopt.h>
#include <stdlib.h>
#include "busybox.h"
int losetup_main (int argc, char **argv)
{
int offset = 0;
/* This will need a "while(getopt()!=-1)" loop when we can have more than
one option, but for now we can't. */
switch(getopt(argc,argv, "do:")) {
case 'd':
/* detach takes exactly one argument */
if(optind+1!=argc) bb_show_usage();
if(!del_loop(argv[optind])) return EXIT_SUCCESS;
die_failed:
bb_perror_msg_and_die("%s",argv[optind]);
case 'o':
offset = bb_xparse_number (optarg, NULL);
/* Fall through to do the losetup */
case -1:
/* losetup takes two argument:, loop_device and file */
if(optind+2==argc) {
if(set_loop(&argv[optind], argv[optind + 1], offset)>=0)
return EXIT_SUCCESS;
else goto die_failed;
}
if(optind+1==argc) {
char *s=query_loop(argv[optind]);
if (!s) goto die_failed;
printf("%s: %s\n",argv[optind],s);
if(ENABLE_FEATURE_CLEAN_UP) free(s);
return EXIT_SUCCESS;
}
break;
}
bb_show_usage();
return EXIT_FAILURE;
}
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