modules/all.c

   1 /* all.c -- console grabbing 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 <stdlib.h>
  16 #include <string.h>
  17 #include <unistd.h>
  18 #include <fcntl.h>
  19 #include <sys/ioctl.h>
  20 #include <errno.h>
  21 #include <signal.h>
  22
  23 #include "vlock_plugin.h"
  24 #include "console_switch.h"
  25
  26 bool vlock_start(void __attribute__((unused)) **ctx_ptr)
  27 {
  28   char *error = NULL;
  29
  30   if (!lock_console_switch(&error)) {
  31     if (error != NULL) {
  32       fprintf(stderr, "vlock-all: %s\n", error);
  33       free(error);
  34     } else {
  35       fprintf(stderr, "vlock-all: could not disable console switching\n");
  36     }
  37   }
  38
  39   return console_switch_locked;
  40 }
  41
  42 bool vlock_end(void __attribute__((unused)) **ctx_ptr)
  43 {
  44   unlock_console_switch();
  45   return true;
  46 }