IABSD.fr/src/games/hack/hack.ioctl.c

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• Author : mestre
  Date : 2016-01-09 21:54:11
  Hash : 6acf840e
  Message : Remove several casts to (char *) 0 and replace them by NULL Prompted and OK by tb@

• games/hack/hack.ioctl.c

• /*	$OpenBSD: hack.ioctl.c,v 1.10 2016/01/09 21:54:11 mestre Exp $	*/
  
  /*
   * Copyright (c) 1985, Stichting Centrum voor Wiskunde en Informatica,
   * Amsterdam
   * All rights reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions are
   * met:
   *
   * - Redistributions of source code must retain the above copyright notice,
   * this list of conditions and the following disclaimer.
   *
   * - Redistributions in binary form must reproduce the above copyright
   * notice, this list of conditions and the following disclaimer in the
   * documentation and/or other materials provided with the distribution.
   *
   * - Neither the name of the Stichting Centrum voor Wiskunde en
   * Informatica, nor the names of its contributors may be used to endorse or
   * promote products derived from this software without specific prior
   * written permission.
   *
   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
   * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
   * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
   * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
   * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
   * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
   * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
   * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
   * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
   * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
   * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   */
  
  /*
   * Copyright (c) 1982 Jay Fenlason <hack@gnu.org>
   * All rights reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
   * 1. Redistributions of source code must retain the above copyright
   *    notice, this list of conditions and the following disclaimer.
   * 2. Redistributions in binary form must reproduce the above copyright
   *    notice, this list of conditions and the following disclaimer in the
   *    documentation and/or other materials provided with the distribution.
   * 3. The name of the author may not be used to endorse or promote products
   *    derived from this software without specific prior written permission.
   *
   * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
   * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
   * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
   * THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
   * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
   * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
   * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
   * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
   * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
   * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   */
  
  /* This cannot be part of hack.tty.c (as it was earlier) since on some
     systems (e.g. MUNIX) the include files <termio.h> and <sgtty.h>
     define the same constants, and the C preprocessor complains. */
  #include <stdio.h>
  #include <termios.h>
  
  #include "hack.h"
  
  struct termios termios;
  
  void
  getioctls(void)
  {
  	(void) tcgetattr(fileno(stdin), &termios);
  }
  
  void
  setioctls(void)
  {
  	(void) tcsetattr(fileno(stdin), TCSADRAIN, &termios);
  }
  
  #ifdef SUSPEND
  #include	<signal.h>
  int
  dosuspend(void)
  {
  #ifdef SIGTSTP
  	if(signal(SIGTSTP, SIG_IGN) == SIG_DFL) {
  		settty(NULL);
  		(void) signal(SIGTSTP, SIG_DFL);
  		(void) kill(0, SIGTSTP);
  		gettty();
  		setftty();
  		docrt();
  	} else {
  		pline("I don't think your shell has job control.");
  	}
  #else /* SIGTSTP */
  	pline("Sorry, it seems we have no SIGTSTP here. Try ! or S.");
  #endif /* SIGTSTP */
  	return(0);
  }
  #endif /* SUSPEND */