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dup23d.c

/***********************************************************************
*                                                                      *
*               This software is part of the ast package               *
*          Copyright (c) 1989-2007 AT&T Intellectual Property          *
*                      and is licensed under the                       *
*                  Common Public License, Version 1.0                  *
*                    by AT&T Intellectual Property                     *
*                                                                      *
*                A copy of the License is available at                 *
*            http://www.opensource.org/licenses/cpl1.0.txt             *
*         (with md5 checksum 059e8cd6165cb4c31e351f2b69388fd9)         *
*                                                                      *
*              Information and Software Systems Research               *
*                            AT&T Research                             *
*                           Florham Park NJ                            *
*                                                                      *
*                 Glenn Fowler <gsf@research.att.com>                  *
*                  David Korn <dgk@research.att.com>                   *
*                   Eduardo Krell <ekrell@adexus.cl>                   *
*                                                                      *
***********************************************************************/
#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

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