IABSD.fr/src/lib/libutil/login_tty.c

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• Author : deraadt
  Date : 2014-06-30 00:26:22
  Hash : 429b3653
  Message : sys/types.h rather than sys/param.h, where applicable. avoid overreach.

• lib/libutil/login_tty.c

• /*	$OpenBSD: login_tty.c,v 1.9 2014/06/30 00:26:22 deraadt Exp $	*/
  /*-
   * Copyright (c) 1990, 1993
   *	The Regents of the University of California.  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. Neither the name of the University 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 REGENTS 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 REGENTS 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.
   */
  
  #include <sys/types.h>
  #include <sys/ioctl.h>
  #include <unistd.h>
  
  #include "util.h"
  
  int
  login_tty(int fd)
  {
  	(void) setsid();
  	if (ioctl(fd, TIOCSCTTY, (char *)NULL) == -1)
  		return (-1);
  	(void) dup2(fd, STDIN_FILENO);
  	(void) dup2(fd, STDOUT_FILENO);
  	(void) dup2(fd, STDERR_FILENO);
  	if (fd > STDERR_FILENO)
  		(void) close(fd);
  	return (0);
  }