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hack.ioctl.c revision 1.3 
      1 /*
      2  * Copyright (c) Stichting Mathematisch Centrum, Amsterdam, 1985.
      3  */
      4 
      5 #ifndef lint
      6 static char rcsid[] = "$Id: hack.ioctl.c,v 1.3 1995/01/07 04:36:41 mycroft 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
     59