1/* vi: set sw=4 ts=4: */
2/*
3 * Utility routines.
4 *
5 * Copyright (C) tons of folks.  Tracking down who wrote what
6 * isn't something I'm going to worry about...  If you wrote something
7 * here, please feel free to acknowledge your work.
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 GNU
17 * General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22 *
23 * Based in part on code from sash, Copyright (c) 1999 by David I. Bell
24 * Permission has been granted to redistribute this code under the GPL.
25 *
26 */
27
28#include <stdio.h>
29#include "libbb.h"
30
31
32
33#define TYPEINDEX(mode) (((mode) >> 12) & 0x0f)
34#define TYPECHAR(mode)  ("0pcCd?bB-?l?s???" [TYPEINDEX(mode)])
35
36/* The special bits. If set, display SMODE0/1 instead of MODE0/1 */
37static const mode_t SBIT[] = {
38	0, 0, S_ISUID,
39	0, 0, S_ISGID,
40	0, 0, S_ISVTX
41};
42
43/* The 9 mode bits to test */
44static const mode_t MBIT[] = {
45	S_IRUSR, S_IWUSR, S_IXUSR,
46	S_IRGRP, S_IWGRP, S_IXGRP,
47	S_IROTH, S_IWOTH, S_IXOTH
48};
49
50static const char MODE1[]  = "rwxrwxrwx";
51static const char MODE0[]  = "---------";
52static const char SMODE1[] = "..s..s..t";
53static const char SMODE0[] = "..S..S..T";
54
55/*
56 * Return the standard ls-like mode string from a file mode.
57 * This is static and so is overwritten on each call.
58 */
59const char *mode_string(int mode)
60{
61	static char buf[12];
62
63	int i;
64
65	buf[0] = TYPECHAR(mode);
66	for (i = 0; i < 9; i++) {
67		if (mode & SBIT[i])
68			buf[i + 1] = (mode & MBIT[i]) ? SMODE1[i] : SMODE0[i];
69		else
70			buf[i + 1] = (mode & MBIT[i]) ? MODE1[i] : MODE0[i];
71	}
72	return buf;
73}
74
75/* END CODE */
76/*
77Local Variables:
78c-file-style: "linux"
79c-basic-offset: 4
80tab-width: 4
81End:
82*/
83