xref: /dragonfly/sys/sys/un.h (revision 7d3e9a5b)
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. Neither the name of the University nor the names of its contributors
14  *    may be used to endorse or promote products derived from this software
15  *    without specific prior written permission.
16  *
17  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27  * SUCH DAMAGE.
28  *
29  *	@(#)un.h	8.3 (Berkeley) 2/19/95
30  * $FreeBSD: src/sys/sys/un.h,v 1.17.2.1 2002/03/09 05:22:23 dd Exp $
31  */
32 
33 #ifndef _SYS_UN_H_
34 #define	_SYS_UN_H_
35 
36 #include <machine/stdint.h>
37 
38 #ifndef _SA_FAMILY_T_DECLARED
39 typedef	__uint8_t	sa_family_t;
40 #define	_SA_FAMILY_T_DECLARED
41 #endif
42 
43 /*
44  * Definitions for UNIX IPC domain.
45  */
46 struct sockaddr_un {
47 	__uint8_t	sun_len;	/* sockaddr len including null */
48 	sa_family_t	sun_family;	/* AF_UNIX */
49 	char		sun_path[104];	/* path name (gag) */
50 };
51 
52 #if __BSD_VISIBLE
53 /* Socket options. */
54 #define	LOCAL_PEERCRED		0x001		/* retrieve peer credentails */
55 #endif
56 
57 #ifdef _KERNEL
58 struct mbuf;
59 struct socket;
60 union netmsg;
61 
62 int	uipc_usrreq(struct socket *so, int req, struct mbuf *m,
63 	    struct mbuf *nam, struct mbuf *control);
64 void	uipc_ctloutput(union netmsg *msg);
65 int	unp_connect2(struct socket *so, struct socket *so2, struct ucred *cred);
66 void	unp_dispose(struct mbuf *m);
67 int	unp_externalize(struct mbuf *rights, int flags);
68 void	unp_init(void);
69 extern	struct pr_usrreqs uipc_usrreqs;
70 #else /* !_KERNEL */
71 
72 #if __BSD_VISIBLE
73 /* actual length of an initialized sockaddr_un */
74 #define	SUN_LEN(su) \
75 	(sizeof(*(su)) - sizeof((su)->sun_path) + strlen((su)->sun_path))
76 #endif
77 
78 #endif /* _KERNEL */
79 
80 #endif /* !_SYS_UN_H_ */
81