modules/vesablank.c

   1 /* vesablank.c -- a console blanking plugin for vlock,
   2  *                the VT locking program for linux
   3  *
   4  * This program is copyright (C) 2007 Frank Benkstein, and is free
   5  * software which is freely distributable under the terms of the
   6  * GNU General Public License version 2, included as the file COPYING in this
   7  * distribution.  It is NOT public domain software, and any
   8  * redistribution not permitted by the GNU General Public License is
   9  * expressly forbidden without prior written permission from
  10  * the author.
  11  *
  12  */
  13
  14 #include <stdio.h>
  15 #include <unistd.h>
  16
  17 #include <sys/ioctl.h>
  18 #include <linux/tiocl.h>
  19
  20 #include "vlock_plugin.h"
  21
  22 const char *depends[] = { "all", NULL };
  23 const char *conflicts[] = { "blank", NULL };
  24
  25 bool vlock_save(void __attribute__ ((__unused__)) ** ctx)
  26 {
  27   char arg[] = { TIOCL_SETVESABLANK, 2 };
  28   return ioctl(STDIN_FILENO, TIOCLINUX, arg) == 0;
  29 }
  30
  31 bool vlock_save_abort(void __attribute__ ((__unused__)) ** ctx)
  32 {
  33   char arg[] = { TIOCL_SETVESABLANK, 0 };
  34   return ioctl(STDIN_FILENO, TIOCLINUX, arg) == 0;
  35 }