un.h revision 102227 
1/*
2 * Copyright (c) 1982, 1986, 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 *	@(#)un.h	8.3 (Berkeley) 2/19/95
34 * $FreeBSD: head/sys/sys/un.h 102227 2002-08-21 16:20:02Z mike $
35 */
36
37#ifndef _SYS_UN_H_
38#define _SYS_UN_H_
39
40#include <sys/cdefs.h>
41#include <sys/_types.h>
42
43#ifndef _SA_FAMILY_T_DECLARED
44typedef	__sa_family_t	sa_family_t;
45#define	_SA_FAMILY_T_DECLARED
46#endif
47
48/*
49 * Definitions for UNIX IPC domain.
50 */
51struct sockaddr_un {
52	unsigned char	sun_len;	/* sockaddr len including null */
53	sa_family_t	sun_family;	/* AF_UNIX */
54	char	sun_path[104];		/* path name (gag) */
55};
56
57#if __BSD_VISIBLE
58
59/* Socket options. */
60#define LOCAL_PEERCRED		0x001		/* retrieve peer credentails */
61
62#ifdef _KERNEL
63struct mbuf;
64struct socket;
65struct sockopt;
66
67int	uipc_ctloutput(struct socket *so, struct sockopt *sopt);
68int	uipc_usrreq(struct socket *so, int req, struct mbuf *m,
69		struct mbuf *nam, struct mbuf *control);
70int	unp_connect2(struct socket *so, struct socket *so2);
71void	unp_dispose(struct mbuf *m);
72int	unp_externalize(struct mbuf *mbuf, struct mbuf **controlp);
73void	unp_init(void);
74extern	struct pr_usrreqs uipc_usrreqs;
75
76#else /* !_KERNEL */
77
78/* actual length of an initialized sockaddr_un */
79#define SUN_LEN(su) \
80	(sizeof(*(su)) - sizeof((su)->sun_path) + strlen((su)->sun_path))
81
82#endif /* _KERNEL */
83
84#endif /* __BSD_VISIBLE */
85
86#endif /* !_SYS_UN_H_ */
87