busybox/util-linux/losetup.c
Eric Andersen 25f95dee2d Lars Ekman writes:
When using "losetup" the device is always setup as Read-Only.

(I have only tested with the -o flag, but looking at the code the
 problem seems general)

The problem is the "opt" variable in "losetup.c" that is reused in
the "set_loop()" call. Clear it before the call and everything is OK;

  opt = 0;         /* <-------- added line */
  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;
}

Best Regards,
Lars Ekman
2003-07-30 08:55:59 +00:00

60 lines
1.5 KiB
C

/*
* 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 delete = 0;
int offset = 0;
int opt;
while ((opt = getopt (argc, argv, "do:")) != -1)
switch (opt)
{
case 'd':
delete = 1;
break;
case 'o':
offset = bb_xparse_number (optarg, NULL);
break;
default:
bb_show_usage();
}
if ((delete && (offset || optind + 1 != argc))
|| (!delete && optind + 2 != argc))
bb_show_usage();
opt = 0;
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;
}