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 * return strperm() expression for perm
28 */
29
30#include <ast.h>
31#include <ls.h>
32
33char*
34fmtperm(register int perm)
35{
36	register char*	s;
37	char*		buf;
38
39	s = buf = fmtbuf(32);
40
41	/*
42	 * u
43	 */
44
45	*s++ = 'u';
46	*s++ = '=';
47	if (perm & S_ISVTX)
48		*s++ = 't';
49	if (perm & S_ISUID)
50		*s++ = 's';
51	if (perm & S_IRUSR)
52		*s++ = 'r';
53	if (perm & S_IWUSR)
54		*s++ = 'w';
55	if (perm & S_IXUSR)
56		*s++ = 'x';
57	if ((perm & (S_ISGID|S_IXGRP)) == S_ISGID)
58		*s++ = 'l';
59
60	/*
61	 * g
62	 */
63
64	*s++ = ',';
65	*s++ = 'g';
66	*s++ = '=';
67	if ((perm & (S_ISGID|S_IXGRP)) == (S_ISGID|S_IXGRP))
68		*s++ = 's';
69	if (perm & S_IRGRP)
70		*s++ = 'r';
71	if (perm & S_IWGRP)
72		*s++ = 'w';
73	if (perm & S_IXGRP)
74		*s++ = 'x';
75
76	/*
77	 * o
78	 */
79
80	*s++ = ',';
81	*s++ = 'o';
82	*s++ = '=';
83	if (perm & S_IROTH)
84		*s++ = 'r';
85	if (perm & S_IWOTH)
86		*s++ = 'w';
87	if (perm & S_IXOTH)
88		*s++ = 'x';
89	*s = 0;
90	return buf;
91}
92