xref: /openbsd/sys/sys/un.h (revision b68e1112)
1 /*	$OpenBSD: un.h,v 1.14 2015/07/18 15:00:01 guenther Exp $	*/
2 /*	$NetBSD: un.h,v 1.11 1996/02/04 02:12:47 christos Exp $	*/
3 
4 /*
5  * Copyright (c) 1982, 1986, 1993
6  *	The Regents of the University of California.  All rights reserved.
7  *
8  * Redistribution and use in source and binary forms, with or without
9  * modification, are permitted provided that the following conditions
10  * are met:
11  * 1. Redistributions of source code must retain the above copyright
12  *    notice, this list of conditions and the following disclaimer.
13  * 2. Redistributions in binary form must reproduce the above copyright
14  *    notice, this list of conditions and the following disclaimer in the
15  *    documentation and/or other materials provided with the distribution.
16  * 3. Neither the name of the University nor the names of its contributors
17  *    may be used to endorse or promote products derived from this software
18  *    without specific prior written permission.
19  *
20  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30  * SUCH DAMAGE.
31  *
32  *	@(#)un.h	8.1 (Berkeley) 6/2/93
33  */
34 
35 #ifndef _SYS_UN_H_
36 #define	_SYS_UN_H_
37 
38 #include <sys/cdefs.h>
39 #include <sys/_types.h>
40 
41 #ifndef	_SA_FAMILY_T_DEFINED_
42 #define	_SA_FAMILY_T_DEFINED_
43 typedef	__sa_family_t	sa_family_t;	/* sockaddr address family type */
44 #endif
45 
46 /*
47  * Definitions for UNIX IPC domain.
48  */
49 struct	sockaddr_un {
50 	unsigned char	sun_len;	/* sockaddr len excluding NUL */
51 	sa_family_t	sun_family;	/* AF_UNIX */
52 	char	sun_path[104];		/* path name (gag) */
53 };
54 
55 #ifndef _KERNEL
56 #if __BSD_VISIBLE
57 
58 /* actual length of an initialized sockaddr_un */
59 #define SUN_LEN(su) \
60 	(sizeof(*(su)) - sizeof((su)->sun_path) + strlen((su)->sun_path))
61 
62 #endif /* __BSD_VISIBLE */
63 
64 #endif /* _KERNEL */
65 #endif /* !_SYS_UN_H_ */
66