*
* 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 delete = 0;
int offset = 0;
- int opt;
-
- while ((opt = getopt (argc, argv, "do:")) != -1)
- switch (opt)
- {
- case 'd':
- delete = 1;
- break;
- case 'o':
- offset = parse_number (optarg, NULL);
- break;
-
- default:
- show_usage ();
+ /* 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 ((delete && (offset || optind + 1 != argc))
- || (!delete && optind + 2 != argc))
- show_usage ();
-
- if (delete)
- return del_loop (argv[optind]) ? EXIT_SUCCESS : EXIT_FAILURE;
- else
- return set_loop (argv[optind], argv[optind + 1], offset, &opt)
- ? EXIT_FAILURE : EXIT_SUCCESS;
+ 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;
}