*
* 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
- *
+ * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
*/
#include <getopt.h>
#include "busybox.h"
-int
-losetup_main (int argc, char **argv)
+int losetup_main (int argc, char **argv)
{
int offset = 0;
switch(getopt(argc,argv, "do:")) {
case 'd':
/* detach takes exactly one argument */
- if(optind+1==argc)
- return del_loop(argv[optind]) ? EXIT_SUCCESS : EXIT_FAILURE;
- break;
+ 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)
- return set_loop(&argv[optind], argv[optind + 1], offset)<0
- ? EXIT_FAILURE : EXIT_SUCCESS;
+ 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();