external/gpl2/lvm2/dist/doc/example_cmdlib.c

   1 /*      $NetBSD$        */
   2
   3 /*
   4  * Copyright (C) 2004 Red Hat, Inc. All rights reserved.
   5  *
   6  * This file is part of LVM2.
   7  *
   8  * This copyrighted material is made available to anyone wishing to use,
   9  * modify, copy, or redistribute it subject to the terms and conditions
  10  * of the GNU General Public License v.2.
  11  *
  12  * You should have received a copy of the GNU General Public License
  13  * along with this program; if not, write to the Free Software Foundation,
  14  * Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  15  */
  16
  17 #include "lvm2cmd.h"
  18
  19 /* All output gets passed to this function line-by-line */
  20 void test_log_fn(int level, int dm_errno, const char *file, int line,
  21                  const char *format)
  22 {
  23         /* Extract and process output here rather than printing it */
  24
  25         if (level != 4)
  26                 return;
  27
  28         printf("%s\n", format);
  29         return;
  30 }
  31
  32 int main(int argc, char **argv)
  33 {
  34         void *handle;
  35         int r;
  36
  37         lvm2_log_fn(test_log_fn);
  38
  39         handle = lvm2_init();
  40
  41         lvm2_log_level(handle, 1);
  42         r = lvm2_run(handle, "vgs --noheadings vg1");
  43
  44         /* More commands here */
  45
  46         lvm2_exit(handle);
  47
  48         return r;
  49 }
  50