LCOM1920-T02G10

/*        $NetBSD: un.h,v 1.56 2015/05/02 17:18:04 rtr Exp $        */

/*

 * Copyright (c) 1982, 1986, 1993

 *        The Regents of the University of California.  All rights reserved.

 *

 * Redistribution and use in source and binary forms, with or without

 * modification, are permitted provided that the following conditions

 * are met:

 * 1. Redistributions of source code must retain the above copyright

 *    notice, this list of conditions and the following disclaimer.

 * 2. Redistributions in binary form must reproduce the above copyright

 *    notice, this list of conditions and the following disclaimer in the

 *    documentation and/or other materials provided with the distribution.

 * 3. Neither the name of the University nor the names of its contributors

 *    may be used to endorse or promote products derived from this software

 *    without specific prior written permission.

 *

 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND

 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE

 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE

 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL

 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS

 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)

 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT

 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY

 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF

 * SUCH DAMAGE.

 *

 *        @(#)un.h        8.3 (Berkeley) 2/19/95

 */

#ifndef _SYS_UN_H_

#define _SYS_UN_H_

#include <sys/ansi.h>

#include <sys/featuretest.h>

#include <sys/types.h>

#ifndef sa_family_t

typedef __sa_family_t        sa_family_t;

#define sa_family_t        __sa_family_t

#endif

/*

 * Definitions for UNIX IPC domain.

 */

struct        sockaddr_un {

        uint8_t                sun_len;        /* total sockaddr length */

        sa_family_t        sun_family;        /* AF_LOCAL */

        char                sun_path[104];        /* path name (gag) */

};

/*

 * Socket options for UNIX IPC domain.

 */

#if defined(_NETBSD_SOURCE)

#define        LOCAL_CREDS        0x0001                /* pass credentials to receiver */

#define        LOCAL_CONNWAIT        0x0002                /* connects block until accepted */

#define        LOCAL_PEEREID        0x0003                /* get peer identification */

#endif

/*

 * Data automatically stored inside connect() for use by LOCAL_PEEREID

 */

struct unpcbid {

        pid_t unp_pid;                /* process id */

        uid_t unp_euid;                /* effective user id */

        gid_t unp_egid;                /* effective group id */

};

#ifdef _KERNEL

struct unpcb;

struct socket;

struct sockopt;

struct sockaddr;

extern const struct pr_usrreqs unp_usrreqs;

int        uipc_ctloutput(int, struct socket *, struct sockopt *);

void        uipc_init(void);

kmutex_t *uipc_dgramlock(void);

kmutex_t *uipc_streamlock(void);

kmutex_t *uipc_rawlock(void);

int        unp_connect(struct socket *, struct sockaddr *, struct lwp *);

int        unp_connect2(struct socket *, struct socket *);

void         unp_dispose(struct mbuf *);

int         unp_externalize(struct mbuf *, struct lwp *, int);

#else /* !_KERNEL */

/* actual length of an initialized sockaddr_un */

#if defined(_NETBSD_SOURCE)

#define SUN_LEN(su) \

        (sizeof(*(su)) - sizeof((su)->sun_path) + strlen((su)->sun_path))

#endif /* !_NetBSD_SOURCE */

#endif /* _KERNEL */

#endif /* !_SYS_UN_H_ */