modei.c

/***********************************************************************
*                                                                      *
*               This software is part of the ast package               *
*          Copyright (c) 1985-2011 AT&T Intellectual Property          *
*          Copyright (c) 2020-2023 Contributors to ksh 93u+m           *
*                      and is licensed under the                       *
*                 Eclipse Public License, Version 2.0                  *
*                                                                      *
*                A copy of the License is available at                 *
*      https://www.eclipse.org/org/documents/epl-2.0/EPL-2.0.html      *
*         (with md5 checksum 84283fa8859daf213bdda5a9f8d1be1d)         *
*                                                                      *
*                 Glenn Fowler <gsf@research.att.com>                  *
*                  David Korn <dgk@research.att.com>                   *
*                   Phong Vo <kpv@research.att.com>                    *
*                  Martijn Dekker <martijn@inlv.org>                   *
*                                                                      *
***********************************************************************/
/*
 * 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(int x)
{
#if _S_IDPERM
	return x & X_IPERM;
#else
	int	i;
	int	c;

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