1 /***********************************************************************
2 *                                                                      *
3 *               This software is part of the ast package               *
4 *          Copyright (c) 1985-2011 AT&T Intellectual Property          *
5 *                      and is licensed under the                       *
6 *                 Eclipse Public License, Version 1.0                  *
7 *                    by AT&T Intellectual Property                     *
8 *                                                                      *
9 *                A copy of the License is available at                 *
10 *          http://www.eclipse.org/org/documents/epl-v10.html           *
11 *         (with md5 checksum b35adb5213ca9657e911e9befb180842)         *
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 internal mode to external
34  */
35 
36 #undef	modex
37 
38 int
modex(register int i)39 modex(register int i)
40 {
41 #if _S_IDPERM && _S_IDTYPE
42 	return(i);
43 #else
44 	register int	x;
45 	register int	c;
46 
47 	x = 0;
48 #if _S_IDPERM
49 	x |= (i & 07777);
50 #else
51 	for (c = 0; c < PERMLEN; c++)
52 		if (i & permmap[c++])
53 			x |= permmap[c];
54 #endif
55 #if _S_IDTYPE
56 	x |= (i & X_IFMT);
57 #else
58 	if (S_ISREG(i)) x |= X_IFREG;
59 	else if (S_ISDIR(i)) x |= X_IFDIR;
60 #ifdef S_ISLNK
61 	else if (S_ISLNK(i)) x |= X_IFLNK;
62 #endif
63 	else if (S_ISBLK(i)) x |= X_IFBLK;
64 	else if (S_ISCHR(i)) x |= X_IFCHR;
65 #ifdef S_ISCTG
66 	else if (S_ISCTG(i)) x |= X_IFCTG;
67 #endif
68 	else if (S_ISFIFO(i)) x |= X_IFIFO;
69 #ifdef S_ISSOCK
70 	else if (S_ISSOCK(i)) x |= X_IFSOCK;
71 #endif
72 #endif
73 	return(x);
74 #endif
75 }
76