xref: /freebsd/lib/libc/string/strmode.c (revision 5521ff5a4d1929056e7ffc982fac3341ca54df7c)
1 /*-
2  * Copyright (c) 1990, 1993
3  *	The Regents of the University of California.  All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in the
12  *    documentation and/or other materials provided with the distribution.
13  * 3. All advertising materials mentioning features or use of this software
14  *    must display the following acknowledgement:
15  *	This product includes software developed by the University of
16  *	California, Berkeley and its contributors.
17  * 4. Neither the name of the University nor the names of its contributors
18  *    may be used to endorse or promote products derived from this software
19  *    without specific prior written permission.
20  *
21  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31  * SUCH DAMAGE.
32  */
33 
34 #if defined(LIBC_SCCS) && !defined(lint)
35 static char sccsid[] = "@(#)strmode.c	8.3 (Berkeley) 8/15/94";
36 #endif /* LIBC_SCCS and not lint */
37 #ifndef lint
38 static const char rcsid[] =
39   "$FreeBSD$";
40 #endif
41 
42 #include <sys/types.h>
43 #include <sys/stat.h>
44 #include <string.h>
45 
46 void
47 strmode(mode, p)
48 	register mode_t mode;
49 	register char *p;
50 {
51 	 /* print type */
52 	switch (mode & S_IFMT) {
53 	case S_IFDIR:			/* directory */
54 		*p++ = 'd';
55 		break;
56 	case S_IFCHR:			/* character special */
57 		*p++ = 'c';
58 		break;
59 	case S_IFBLK:			/* block special */
60 		*p++ = 'b';
61 		break;
62 	case S_IFREG:			/* regular */
63 		*p++ = '-';
64 		break;
65 	case S_IFLNK:			/* symbolic link */
66 		*p++ = 'l';
67 		break;
68 	case S_IFSOCK:			/* socket */
69 		*p++ = 's';
70 		break;
71 #ifdef S_IFIFO
72 	case S_IFIFO:			/* fifo */
73 		*p++ = 'p';
74 		break;
75 #endif
76 #ifdef S_IFWHT
77 	case S_IFWHT:			/* whiteout */
78 		*p++ = 'w';
79 		break;
80 #endif
81 	default:			/* unknown */
82 		*p++ = '?';
83 		break;
84 	}
85 	/* usr */
86 	if (mode & S_IRUSR)
87 		*p++ = 'r';
88 	else
89 		*p++ = '-';
90 	if (mode & S_IWUSR)
91 		*p++ = 'w';
92 	else
93 		*p++ = '-';
94 	switch (mode & (S_IXUSR | S_ISUID)) {
95 	case 0:
96 		*p++ = '-';
97 		break;
98 	case S_IXUSR:
99 		*p++ = 'x';
100 		break;
101 	case S_ISUID:
102 		*p++ = 'S';
103 		break;
104 	case S_IXUSR | S_ISUID:
105 		*p++ = 's';
106 		break;
107 	}
108 	/* group */
109 	if (mode & S_IRGRP)
110 		*p++ = 'r';
111 	else
112 		*p++ = '-';
113 	if (mode & S_IWGRP)
114 		*p++ = 'w';
115 	else
116 		*p++ = '-';
117 	switch (mode & (S_IXGRP | S_ISGID)) {
118 	case 0:
119 		*p++ = '-';
120 		break;
121 	case S_IXGRP:
122 		*p++ = 'x';
123 		break;
124 	case S_ISGID:
125 		*p++ = 'S';
126 		break;
127 	case S_IXGRP | S_ISGID:
128 		*p++ = 's';
129 		break;
130 	}
131 	/* other */
132 	if (mode & S_IROTH)
133 		*p++ = 'r';
134 	else
135 		*p++ = '-';
136 	if (mode & S_IWOTH)
137 		*p++ = 'w';
138 	else
139 		*p++ = '-';
140 	switch (mode & (S_IXOTH | S_ISVTX)) {
141 	case 0:
142 		*p++ = '-';
143 		break;
144 	case S_IXOTH:
145 		*p++ = 'x';
146 		break;
147 	case S_ISVTX:
148 		*p++ = 'T';
149 		break;
150 	case S_IXOTH | S_ISVTX:
151 		*p++ = 't';
152 		break;
153 	}
154 	*p++ = ' ';		/* will be a '+' if ACL's implemented */
155 	*p = '\0';
156 }
157