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/* vlock.h -- main header file for vlock, the VT locking program for linux
*
* This program is copyright (C) 1994 Michael K. Johnson, and is free
* software which is freely distributable under the terms of the
* GNU public license, included as the file COPYING in this
* distribution. It is NOT public domain software, and any
* redistribution not permitted by the GNU Public License is
* expressly forbidden without prior written permission from
* the author.
*
*/
/* RCS log:
* $Log: vlock.h,v $
* Revision 1.10 1996/05/17 02:52:34 johnsonm
* New functions for new password handling.
*
* Revision 1.9 1994/07/03 13:10:28 johnsonm
* Added print argument to set_terminal().
*
* Revision 1.8 1994/07/03 12:15:03 johnsonm
* *** empty log message ***
*
* Revision 1.7 1994/07/03 12:09:48 johnsonm
* Added set_signal_mask()
*
* Revision 1.6 1994/03/23 17:02:59 johnsonm
* This time *really* removed the pattern-list support...
*
* Revision 1.5 1994/03/23 17:01:54 johnsonm
* Removed appendages for pattern display.
* Added support for non-VT ttys.
*
* Revision 1.4 1994/03/19 14:29:58 johnsonm
* No longer need to deal with two-process model.
*
* Revision 1.3 1994/03/16 20:13:33 johnsonm
* Added ignore_sigchld() for second process. Not sure if that is
* the right thing yet, since it doesn't seem to work quite.
*
* Revision 1.2 1994/03/15 18:27:33 johnsonm
* Made consistent with all the changes in the other files...
*
* Revision 1.1 1994/03/13 16:28:16 johnsonm
* Initial revision
*
*/
static char rcsid_vlockh[] = "$Id: vlock.h,v 1.10 1996/05/17 02:52:34 johnsonm Exp johnsonm $";
#define O_PATTERN 1
#define O_VERSION 2
#define O_HELP 3
void release_vt(int signo);
void acquire_vt(int signo);
void set_signal_mask(int save);
void mask_signals(void);
void restore_signals(void);
void set_terminal(int print);
void restore_terminal(void);
void get_password(void);
void init_passwords(void);
void print_help(int exitcode);
void clear_screen(void);
void restore_screen(void);
/* Global variables: */
/* Option globals: */
/* This determines whether the default behavior is to lock only the */
/* current VT or all of them. 0 means current, 1 means all. */
extern int o_lock_all;
/* Other globals: */
/* Copy of the VT mode when the program was started */
extern struct vt_mode ovtm;
extern struct termios oterm;
extern int vfd;
extern int is_vt;
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