alpine/talk.h

   1 /*
   2  * $Id: talk.h 761 2007-10-23 22:35:18Z hubert@u.washington.edu $
   3  *
   4  * ========================================================================
   5  * Copyright 2006 University of Washington
   6  *
   7  * Licensed under the Apache License, Version 2.0 (the "License");
   8  * you may not use this file except in compliance with the License.
   9  * You may obtain a copy of the License at
  10  *
  11  *     http://www.apache.org/licenses/LICENSE-2.0
  12  *
  13  * ========================================================================
  14  */
  15
  16 #ifndef PITH_TALK_INCLUDED
  17 #define PITH_TALK_INCLUDED
  18
  19
  20 /*
  21  * Macros to aid hack to turn off talk permission.
  22  * Bit 020 is usually used to turn off talk permission, we turn off
  23  * 002 also for good measure, since some mesg commands seem to do that.
  24  */
  25 #define TALK_BIT                020             /* mode bits */
  26 #define GM_BIT                  002
  27 #define TMD_CLEAR               0               /* functions */
  28 #define TMD_SET                 1
  29 #define TMD_RESET               2
  30 #define allow_talk(p)           tty_chmod((p), TALK_BIT, TMD_SET)
  31 #define disallow_talk(p)        tty_chmod((p), TALK_BIT|GM_BIT, TMD_CLEAR)
  32
  33
  34 /* exported protoypes */
  35
  36
  37 #endif /* PITH_TALK_INCLUDED */