xref: /titanic_50/usr/src/lib/libast/common/string/modei.c (revision 356f72340a69936724c69f2f87fffa6f5887f885)
1 /***********************************************************************
2 *                                                                      *
3 *               This software is part of the ast package               *
4 *          Copyright (c) 1985-2010 AT&T Intellectual Property          *
5 *                      and is licensed under the                       *
6 *                  Common Public License, Version 1.0                  *
7 *                    by AT&T Intellectual Property                     *
8 *                                                                      *
9 *                A copy of the License is available at                 *
10 *            http://www.opensource.org/licenses/cpl1.0.txt             *
11 *         (with md5 checksum 059e8cd6165cb4c31e351f2b69388fd9)         *
12 *                                                                      *
13 *              Information and Software Systems Research               *
14 *                            AT&T Research                             *
15 *                           Florham Park NJ                            *
16 *                                                                      *
17 *                 Glenn Fowler <gsf@research.att.com>                  *
18 *                  David Korn <dgk@research.att.com>                   *
19 *                   Phong Vo <kpv@research.att.com>                    *
20 *                                                                      *
21 ***********************************************************************/
22 #pragma prototyped
23 /*
24  * Glenn Fowler
25  * AT&T Bell Laboratories
26  *
27  * mode_t representation support
28  */
29 
30 #include "modelib.h"
31 
32 /*
33  * convert external mode to internal
34  *
35  * NOTE: X_IFMT ignored
36  */
37 
38 #undef	modei
39 
40 int
41 modei(register int x)
42 {
43 #if _S_IDPERM
44 	return(x & X_IPERM);
45 #else
46 	register int	i;
47 	register int	c;
48 
49 	i = 0;
50 	for (c = 0; c < PERMLEN; c += 2)
51 		if (x & permmap[c + 1])
52 			i |= permmap[c];
53 	return(i);
54 #endif
55 }
56