hack/hack.ioctl.c

   1 /*
   2  * Copyright (c) Stichting Mathematisch Centrum, Amsterdam, 1985.
   3  */
   4
   5 #ifndef lint
   6 static char rcsid[] = "$NetBSD: hack.ioctl.c,v 1.4 1995/03/23 08:30:29 cgd Exp $";
   7 #endif /* not lint */
   8
   9 /* This cannot be part of hack.tty.c (as it was earlier) since on some
  10    systems (e.g. MUNIX) the include files <termio.h> and <sgtty.h>
  11    define the same constants, and the C preprocessor complains. */
  12 #include <stdio.h>
  13 #include "config.h"
  14 #ifdef BSD
  15 #include        <sgtty.h>
  16 struct ltchars ltchars, ltchars0;
  17 #else
  18 #include        <termio.h>      /* also includes part of <sgtty.h> */
  19 struct termio termio;
  20 #endif BSD
  21
  22 getioctls() {
  23 #ifdef BSD
  24         (void) ioctl(fileno(stdin), (int) TIOCGLTC, (char *) &ltchars);
  25         (void) ioctl(fileno(stdin), (int) TIOCSLTC, (char *) &ltchars0);
  26 #else
  27         (void) ioctl(fileno(stdin), (int) TCGETA, &termio);
  28 #endif BSD
  29 }
  30
  31 setioctls() {
  32 #ifdef BSD
  33         (void) ioctl(fileno(stdin), (int) TIOCSLTC, (char *) &ltchars);
  34 #else
  35         (void) ioctl(fileno(stdin), (int) TCSETA, &termio);
  36 #endif BSD
  37 }
  38
  39 #ifdef SUSPEND          /* implies BSD */
  40 #include        <signal.h>
  41 dosuspend() {
  42 #ifdef SIGTSTP
  43         if(signal(SIGTSTP, SIG_IGN) == SIG_DFL) {
  44                 settty((char *) 0);
  45                 (void) signal(SIGTSTP, SIG_DFL);
  46                 (void) kill(0, SIGTSTP);
  47                 gettty();
  48                 setftty();
  49                 docrt();
  50         } else {
  51                 pline("I don't think your shell has job control.");
  52         }
  53 #else SIGTSTP
  54         pline("Sorry, it seems we have no SIGTSTP here. Try ! or S.");
  55 #endif SIGTSTP
  56         return(0);
  57 }
  58 #endif SUSPEND