/**
 * @file
 *
 * @ingroup libcsupport
 *
 * @brief POSIX 1003.1b 6.2.1 Duplicate an Open File Descriptor
 */

/*
 *  COPYRIGHT (c) 1989-1999.
 *  On-Line Applications Research Corporation (OAR).
 *
 *  The license and distribution terms for this file may be
 *  found in the file LICENSE in this distribution or at
 *  http://www.rtems.org/license/LICENSE.
 */

#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

#include <unistd.h>
#include <fcntl.h>

int dup(
  int fildes
)
{
  return fcntl( fildes, F_DUPFD, 0 );
}