1/*
2 * A single utility routine.
3 *
4 * Copyright (C) 1996 Andrew Tridgell
5 * Copyright (C) 1996 Paul Mackerras
6 * Copyright (C) 2001 Martin Pool <mbp@samba.org>
7 * Copyright (C) 2003, 2006 Wayne Davison
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
13 *
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
17 * GNU General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License along
20 * with this program; if not, write to the Free Software Foundation, Inc.,
21 * 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.
22 */
23
24#include "rsync.h"
25
26/* Produce a string representation of Unix mode bits like that used by ls(1).
27 * The "buf" buffer must be at least 11 characters. */
28void permstring(char *perms, mode_t mode)
29{
30	static const char *perm_map = "rwxrwxrwx";
31	int i;
32
33	strlcpy(perms, "----------", 11);
34
35	for (i = 0; i < 9; i++) {
36		if (mode & (1 << i))
37			perms[9-i] = perm_map[8-i];
38	}
39
40	/* Handle setuid/sticky bits.  You might think the indices are
41	 * off by one, but remember there's a type char at the
42	 * start.  */
43	if (mode & S_ISUID)
44		perms[3] = (mode & S_IXUSR) ? 's' : 'S';
45
46	if (mode & S_ISGID)
47		perms[6] = (mode & S_IXGRP) ? 's' : 'S';
48
49#ifdef S_ISVTX
50	if (mode & S_ISVTX)
51		perms[9] = (mode & S_IXOTH) ? 't' : 'T';
52#endif
53
54	if (S_ISDIR(mode))
55		perms[0] = 'd';
56	else if (S_ISLNK(mode))
57		perms[0] = 'l';
58	else if (S_ISBLK(mode))
59		perms[0] = 'b';
60	else if (S_ISCHR(mode))
61		perms[0] = 'c';
62	else if (S_ISSOCK(mode))
63		perms[0] = 's';
64	else if (S_ISFIFO(mode))
65		perms[0] = 'p';
66}
67