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modei.c

/***********************************************************************
*                                                                      *
*               This software is part of the ast package               *
*                  Copyright (c) 1985-2005 AT&T Corp.                  *
*                      and is licensed under the                       *
*                  Common Public License, Version 1.0                  *
*                            by AT&T Corp.                             *
*                                                                      *
*                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>                   *
*                   Phong Vo <kpv@research.att.com>                    *
*                                                                      *
***********************************************************************/
#pragma prototyped
/*
 * Glenn Fowler
 * AT&T Bell Laboratories
 *
 * mode_t representation support
 */

#include "modelib.h"

/*
 * convert external mode to internal
 *
 * NOTE: X_IFMT ignored
 */

#undef      modei

int
modei(register int x)
{
#if _S_IDPERM
      return(x & X_IPERM);
#else
      register int      i;
      register int      c;

      i = 0;
      for (c = 0; c < PERMLEN; c += 2)
            if (x & permmap[c + 1])
                  i |= permmap[c];
      return(i);
#endif
}

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