xref: /freebsd/lib/libc/string/strmode.c (revision 1ca63a8219b88b752b064d19bd3428c61dbcf1f9)
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/types.h>
36 #include <sys/stat.h>
37 #include <string.h>
38 
39 void
40 strmode(mode_t mode, char *p)
41 {
42 	 /* print type */
43 	switch (mode & S_IFMT) {
44 	case S_IFDIR:			/* directory */
45 		*p++ = 'd';
46 		break;
47 	case S_IFCHR:			/* character special */
48 		*p++ = 'c';
49 		break;
50 	case S_IFBLK:			/* block special */
51 		*p++ = 'b';
52 		break;
53 	case S_IFREG:			/* regular */
54 		*p++ = '-';
55 		break;
56 	case S_IFLNK:			/* symbolic link */
57 		*p++ = 'l';
58 		break;
59 	case S_IFSOCK:			/* socket */
60 		*p++ = 's';
61 		break;
62 #ifdef S_IFIFO
63 	case S_IFIFO:			/* fifo */
64 		*p++ = 'p';
65 		break;
66 #endif
67 #ifdef S_IFWHT
68 	case S_IFWHT:			/* whiteout */
69 		*p++ = 'w';
70 		break;
71 #endif
72 	default:			/* unknown */
73 		*p++ = '?';
74 		break;
75 	}
76 	/* usr */
77 	if (mode & S_IRUSR)
78 		*p++ = 'r';
79 	else
80 		*p++ = '-';
81 	if (mode & S_IWUSR)
82 		*p++ = 'w';
83 	else
84 		*p++ = '-';
85 	switch (mode & (S_IXUSR | S_ISUID)) {
86 	case 0:
87 		*p++ = '-';
88 		break;
89 	case S_IXUSR:
90 		*p++ = 'x';
91 		break;
92 	case S_ISUID:
93 		*p++ = 'S';
94 		break;
95 	case S_IXUSR | S_ISUID:
96 		*p++ = 's';
97 		break;
98 	}
99 	/* group */
100 	if (mode & S_IRGRP)
101 		*p++ = 'r';
102 	else
103 		*p++ = '-';
104 	if (mode & S_IWGRP)
105 		*p++ = 'w';
106 	else
107 		*p++ = '-';
108 	switch (mode & (S_IXGRP | S_ISGID)) {
109 	case 0:
110 		*p++ = '-';
111 		break;
112 	case S_IXGRP:
113 		*p++ = 'x';
114 		break;
115 	case S_ISGID:
116 		*p++ = 'S';
117 		break;
118 	case S_IXGRP | S_ISGID:
119 		*p++ = 's';
120 		break;
121 	}
122 	/* other */
123 	if (mode & S_IROTH)
124 		*p++ = 'r';
125 	else
126 		*p++ = '-';
127 	if (mode & S_IWOTH)
128 		*p++ = 'w';
129 	else
130 		*p++ = '-';
131 	switch (mode & (S_IXOTH | S_ISVTX)) {
132 	case 0:
133 		*p++ = '-';
134 		break;
135 	case S_IXOTH:
136 		*p++ = 'x';
137 		break;
138 	case S_ISVTX:
139 		*p++ = 'T';
140 		break;
141 	case S_IXOTH | S_ISVTX:
142 		*p++ = 't';
143 		break;
144 	}
145 	*p++ = ' ';
146 	*p = '\0';
147 }
148