text: /*
   * $Id: fcntl_close.c,v 1.13 2006-01-08 12:04:22 obarthel Exp $
   *
   * :ts=4
   *
   * Portable ISO 'C' (1994) runtime library for the Amiga computer
   * Copyright (c) 2002-2015 by Olaf Barthel <obarthel (at) gmx.net>
   * 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.
   *
   *   - Neither the name of Olaf Barthel nor the names of 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.
   */
  
  #ifndef _FCNTL_HEADERS_H
  #include "fcntl_headers.h"
  #endif /* _FCNTL_HEADERS_H */
  
  /****************************************************************************/
  
  /* The following is not part of the ISO 'C' (1994) standard. */
  
  /****************************************************************************/
  
  int
  close(int file_descriptor)
  {
  	struct file_action_message fam;
  	struct fd * fd;
  	int result = ERROR;
  
  	ENTER();
  
  	SHOWVALUE(file_descriptor);
  
  	assert( file_descriptor >= 0 && file_descriptor < __num_fd );
  	assert( __fd[file_descriptor] != NULL );
  	assert( FLAG_IS_SET(__fd[file_descriptor]->fd_Flags,FDF_IN_USE) );
  
  	if(__check_abort_enabled)
  		__check_abort();
  
  	/* We want to affect this very file descriptor and not the
  	   original one associated with an alias of it. */
  	fd = __get_file_descriptor_dont_resolve(file_descriptor);
  	if(fd == NULL)
  	{
  		__set_errno(EBADF);
  		goto out;
  	}
  
  	fam.fam_Action = file_action_close;
  
  	assert( fd->fd_Action != NULL );
  
  	if((*fd->fd_Action)(fd,&fam) < 0)
  	{
  		__set_errno(fam.fam_Error);
  		goto out;
  	}
  
  	result = OK;
  
   out:
  
  	RETURN(result);
  	return(result);
  }
  