xref: /freebsd/lib/libc/string/strmode.c (revision eda14cbc264d6969b02f2b1994cef11148e914f1)
1 /*-
2  * SPDX-License-Identifier: BSD-3-Clause
3  *
4  * Copyright (c) 1990, 1993
5  *	The Regents of the University of California.  All rights reserved.
6  *
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions
9  * are met:
10  * 1. Redistributions of source code must retain the above copyright
11  *    notice, this list of conditions and the following disclaimer.
12  * 2. Redistributions in binary form must reproduce the above copyright
13  *    notice, this list of conditions and the following disclaimer in the
14  *    documentation and/or other materials provided with the distribution.
15  * 3. Neither the name of the University nor the names of its contributors
16  *    may be used to endorse or promote products derived from this software
17  *    without specific prior written permission.
18  *
19  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
23  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29  * SUCH DAMAGE.
30  */
31 
32 #if defined(LIBC_SCCS) && !defined(lint)
33 static char sccsid[] = "@(#)strmode.c	8.3 (Berkeley) 8/15/94";
34 #endif /* LIBC_SCCS and not lint */
35 #include <sys/cdefs.h>
36 __FBSDID("$FreeBSD$");
37 
38 #include <sys/types.h>
39 #include <sys/stat.h>
40 #include <string.h>
41 
42 void
43 strmode(/* mode_t */ int mode, char *p)
44 {
45 	 /* print type */
46 	switch (mode & S_IFMT) {
47 	case S_IFDIR:			/* directory */
48 		*p++ = 'd';
49 		break;
50 	case S_IFCHR:			/* character special */
51 		*p++ = 'c';
52 		break;
53 	case S_IFBLK:			/* block special */
54 		*p++ = 'b';
55 		break;
56 	case S_IFREG:			/* regular */
57 		*p++ = '-';
58 		break;
59 	case S_IFLNK:			/* symbolic link */
60 		*p++ = 'l';
61 		break;
62 	case S_IFSOCK:			/* socket */
63 		*p++ = 's';
64 		break;
65 #ifdef S_IFIFO
66 	case S_IFIFO:			/* fifo */
67 		*p++ = 'p';
68 		break;
69 #endif
70 #ifdef S_IFWHT
71 	case S_IFWHT:			/* whiteout */
72 		*p++ = 'w';
73 		break;
74 #endif
75 	default:			/* unknown */
76 		*p++ = '?';
77 		break;
78 	}
79 	/* usr */
80 	if (mode & S_IRUSR)
81 		*p++ = 'r';
82 	else
83 		*p++ = '-';
84 	if (mode & S_IWUSR)
85 		*p++ = 'w';
86 	else
87 		*p++ = '-';
88 	switch (mode & (S_IXUSR | S_ISUID)) {
89 	case 0:
90 		*p++ = '-';
91 		break;
92 	case S_IXUSR:
93 		*p++ = 'x';
94 		break;
95 	case S_ISUID:
96 		*p++ = 'S';
97 		break;
98 	case S_IXUSR | S_ISUID:
99 		*p++ = 's';
100 		break;
101 	}
102 	/* group */
103 	if (mode & S_IRGRP)
104 		*p++ = 'r';
105 	else
106 		*p++ = '-';
107 	if (mode & S_IWGRP)
108 		*p++ = 'w';
109 	else
110 		*p++ = '-';
111 	switch (mode & (S_IXGRP | S_ISGID)) {
112 	case 0:
113 		*p++ = '-';
114 		break;
115 	case S_IXGRP:
116 		*p++ = 'x';
117 		break;
118 	case S_ISGID:
119 		*p++ = 'S';
120 		break;
121 	case S_IXGRP | S_ISGID:
122 		*p++ = 's';
123 		break;
124 	}
125 	/* other */
126 	if (mode & S_IROTH)
127 		*p++ = 'r';
128 	else
129 		*p++ = '-';
130 	if (mode & S_IWOTH)
131 		*p++ = 'w';
132 	else
133 		*p++ = '-';
134 	switch (mode & (S_IXOTH | S_ISVTX)) {
135 	case 0:
136 		*p++ = '-';
137 		break;
138 	case S_IXOTH:
139 		*p++ = 'x';
140 		break;
141 	case S_ISVTX:
142 		*p++ = 'T';
143 		break;
144 	case S_IXOTH | S_ISVTX:
145 		*p++ = 't';
146 		break;
147 	}
148 	*p++ = ' ';
149 	*p = '\0';
150 }
151