dup23d.c

/***********************************************************************
*                                                                      *
*               This software is part of the ast package               *
*          Copyright (c) 1989-2011 AT&T Intellectual Property          *
*                      and is licensed under the                       *
*                 Eclipse Public License, Version 1.0                  *
*                    by AT&T Intellectual Property                     *
*                                                                      *
*                A copy of the License is available at                 *
*          http://www.eclipse.org/org/documents/epl-v10.html           *
*         (with md5 checksum b35adb5213ca9657e911e9befb180842)         *
*                                                                      *
*              Information and Software Systems Research               *
*                            AT&T Research                             *
*                           Florham Park NJ                            *
*                                                                      *
*                 Glenn Fowler <[email protected]>                  *
*                  David Korn <[email protected]>                   *
*                   Eduardo Krell <[email protected]>                   *
*                                                                      *
***********************************************************************/
#pragma prototyped

#include "3d.h"

#ifdef dup23d

int
dup23d(int fd, register int r)
{
	initialize();
	if (r >= 0 && r < elementsof(state.file) && state.file[r].reserved) close(r);
	r = DUP2(fd, r);
#if FS
	if (r >= 0 && r < elementsof(state.file))
		fs3d_dup(fd, r);
#endif
	return(r);
}

#else

NoN(dup2)

#endif