The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/sys/un.h

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    1 /*      $OpenBSD: un.h,v 1.8 2003/06/02 23:28:22 millert 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 /*
   39  * Definitions for UNIX IPC domain.
   40  */
   41 struct  sockaddr_un {
   42         unsigned char   sun_len;        /* sockaddr len including null */
   43         unsigned char   sun_family;     /* AF_UNIX */
   44         char    sun_path[104];          /* path name (gag) */
   45 };
   46 
   47 #ifdef _KERNEL
   48 struct unpcb;
   49 struct socket;
   50 
   51 int     unp_attach(struct socket *so);
   52 int     unp_bind(struct unpcb *unp, struct mbuf *nam, struct proc *p);
   53 int     unp_connect(struct socket *so, struct mbuf *nam, struct proc *p);
   54 int     unp_connect2(struct socket *so, struct socket *so2);
   55 void    unp_detach(struct unpcb *unp);
   56 void    unp_discard(struct file *fp);
   57 void    unp_disconnect(struct unpcb *unp);
   58 void    unp_drop(struct unpcb *unp, int errno);
   59 void    unp_gc(void);
   60 void    unp_mark(struct file *fp);
   61 void    unp_scan(struct mbuf *m0, void (*op)(struct file *), int);
   62 void    unp_shutdown(struct unpcb *unp);
   63 int     unp_externalize(struct mbuf *);
   64 int     unp_internalize(struct mbuf *, struct proc *);
   65 void    unp_dispose(struct mbuf *);
   66 #else /* !_KERNEL */
   67 
   68 /* actual length of an initialized sockaddr_un */
   69 #define SUN_LEN(su) \
   70         (sizeof(*(su)) - sizeof((su)->sun_path) + strlen((su)->sun_path))
   71 #endif /* _KERNEL */
   72 #endif /* !_SYS_UN_H_ */

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