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 /*
    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: releng/5.2/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
   44 typedef __sa_family_t   sa_family_t;
   45 #define _SA_FAMILY_T_DECLARED
   46 #endif
   47 
   48 /*
   49  * Definitions for UNIX IPC domain.
   50  */
   51 struct 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
   63 struct mbuf;
   64 struct socket;
   65 struct sockopt;
   66 
   67 int     uipc_ctloutput(struct socket *so, struct sockopt *sopt);
   68 int     uipc_usrreq(struct socket *so, int req, struct mbuf *m,
   69                 struct mbuf *nam, struct mbuf *control);
   70 int     unp_connect2(struct socket *so, struct socket *so2);
   71 void    unp_dispose(struct mbuf *m);
   72 int     unp_externalize(struct mbuf *mbuf, struct mbuf **controlp);
   73 void    unp_init(void);
   74 extern  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_ */

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