games/hack/hack.ioctl.c

   1 /* Copyright (c) Stichting Mathematisch Centrum, Amsterdam, 1985. */
   2 /* hack.ioctl.c - version 1.0.2 */
   3 /* $FreeBSD: src/games/hack/hack.ioctl.c,v 1.2 1999/09/12 07:01:23 marcel Exp $
   4    $DragonFly: src/games/hack/hack.ioctl.c,v 1.4 2006/08/21 19:45:32 pavalos Exp $
   5
   6    This cannot be part of hack.tty.c (as it was earlier) since on some
   7    systems (e.g. MUNIX) the include files <termio.h> and <sgtty.h>
   8    define the same constants, and the C preprocessor complains. */
   9 #include "hack.h"
  10 #ifdef BSD
  11 #include        <sgtty.h>
  12 struct ltchars ltchars, ltchars0;
  13 #else
  14 #include        <termio.h>      /* also includes part of <sgtty.h> */
  15 struct termio termio;
  16 #endif /* BSD */
  17
  18 void
  19 getioctls(void)
  20 {
  21 #ifdef BSD
  22         ioctl(fileno(stdin), (int) TIOCGLTC, (char *) &ltchars);
  23         ioctl(fileno(stdin), (int) TIOCSLTC, (char *) &ltchars0);
  24 #else
  25         ioctl(fileno(stdin), (int) TCGETA, &termio);
  26 #endif /* BSD */
  27 }
  28
  29 void
  30 setioctls(void)
  31 {
  32 #ifdef BSD
  33         ioctl(fileno(stdin), (int) TIOCSLTC, (char *) &ltchars);
  34 #else
  35         ioctl(fileno(stdin), (int) TCSETA, &termio);
  36 #endif /* BSD */
  37 }
  38
  39 #ifdef SUSPEND          /* implies BSD */
  40 #include        <signal.h>
  41 int
  42 dosuspend(void)
  43 {
  44 #ifdef SIGTSTP
  45         if(signal(SIGTSTP, SIG_IGN) == SIG_DFL) {
  46                 settty((char *) 0);
  47                 signal(SIGTSTP, SIG_DFL);
  48                 kill(0, SIGTSTP);
  49                 gettty();
  50                 setftty();
  51                 docrt();
  52         } else {
  53                 pline("I don't think your shell has job control.");
  54         }
  55 #else /* SIGTSTP */
  56         pline("Sorry, it seems we have no SIGTSTP here. Try ! or S.");
  57 #endif /* SIGTSTP */
  58         return(0);
  59 }
  60 #endif /* SUSPEND */