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//==========================================================================

//

//      sys/kern/sys_socket.c

//

//     

//

//==========================================================================

// ####BSDALTCOPYRIGHTBEGIN####                                             

// -------------------------------------------                              

// Portions of this software may have been derived from OpenBSD             

// or other sources, and if so are covered by the appropriate copyright     

// and license included herein.                                             

// -------------------------------------------                              

// ####BSDALTCOPYRIGHTEND####                                               

//==========================================================================

//#####DESCRIPTIONBEGIN####

//

// Author(s):    gthomas

// Contributors: gthomas

// Date:         2000-01-10

// Purpose:      

// Description:  

//              

//

//####DESCRIPTIONEND####

//

//==========================================================================

/*      $OpenBSD: sys_socket.c,v 1.3 1997/08/31 20:42:23 deraadt Exp $  */

/*      $NetBSD: sys_socket.c,v 1.13 1995/08/12 23:59:09 mycroft Exp $  */

/*

 * Copyright (c) 1982, 1986, 1990, 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. All advertising materials mentioning features or use of this software

 *    must display the following acknowledgement:

 *      This product includes software developed by the University of

 *      California, Berkeley and its contributors.

 * 4. 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.

 *

 *      @(#)sys_socket.c        8.1 (Berkeley) 6/10/93

 */

#include <sys/param.h>

#ifdef __ECOS

#include <cyg/io/file.h>

#else

#include <sys/systm.h>

#include <sys/file.h>

#include <sys/proc.h>

#endif

#include <sys/mbuf.h>

#include <sys/protosw.h>

#include <sys/socket.h>

#include <sys/socketvar.h>

#include <sys/ioctl.h>

#ifndef __ECOS

#include <sys/stat.h>

#endif

#include <net/if.h>

#include <net/route.h>

struct  fileops socketops =

    { soo_read, soo_write, soo_ioctl, soo_select, soo_close };

#ifdef __ECOS

/* ARGSUSED */

int

soo_read(struct file *fp, struct uio *uio)

#else

/* ARGSUSED */

int

soo_read(fp, uio, cred)

        struct file *fp;

        struct uio *uio;

        struct ucred *cred;

#endif

{

        return (soreceive((struct socket *)fp->f_data, (struct mbuf **)0,

                uio, (struct mbuf **)0, (struct mbuf **)0, (int *)0));

}

#ifdef __ECOS

int

soo_write(struct file *fp, struct uio *uio)

#else

/* ARGSUSED */

int

soo_write(fp, uio, cred)

        struct file *fp;

        struct uio *uio;

        struct ucred *cred;

#endif

{

        return (sosend((struct socket *)fp->f_data, (struct mbuf *)0,

                uio, (struct mbuf *)0, (struct mbuf *)0, 0));

}

#ifdef __ECOS

int

soo_ioctl(struct file *fp, CYG_ADDRWORD cmd, CYG_ADDRWORD data)

#else

int

soo_ioctl(fp, cmd, data, p)

        struct file *fp;

        u_long cmd;

        register caddr_t data;

        struct proc *p;

#endif

{

        register struct socket *so = (struct socket *)fp->f_data;

#ifdef __ECOS

        void *p = 0;

#endif

        switch (cmd) {

        case FIONBIO:

                if (*(int *)data)

                        so->so_state |= SS_NBIO;

                else

                        so->so_state &= ~SS_NBIO;

                return (0);

        case FIOASYNC:

                if (*(int *)data) {

                        so->so_state |= SS_ASYNC;

                        so->so_rcv.sb_flags |= SB_ASYNC;

                        so->so_snd.sb_flags |= SB_ASYNC;

                } else {

                        so->so_state &= ~SS_ASYNC;

                        so->so_rcv.sb_flags &= ~SB_ASYNC;

                        so->so_snd.sb_flags &= ~SB_ASYNC;

                }

                return (0);

        case FIONREAD:

                *(int *)data = so->so_rcv.sb_cc;

                return (0);

#ifndef __ECOS

        case SIOCSPGRP:

                so->so_pgid = *(int *)data;

                so->so_siguid = p->p_cred->p_ruid;

                so->so_sigeuid = p->p_ucred->cr_uid;

                return (0);

        case SIOCGPGRP:

                *(int *)data = so->so_pgid;

                return (0);

#endif

        case SIOCATMARK:

                *(int *)data = (so->so_state&SS_RCVATMARK) != 0;

                return (0);

        }

        /*

         * Interface/routing/protocol specific ioctls:

         * interface and routing ioctls should have a

         * different entry since a socket's unnecessary

         */

        if (IOCGROUP(cmd) == 'i')

                return (ifioctl(so, (u_long)cmd, (caddr_t)data, p));

        if (IOCGROUP(cmd) == 'r')

                return (rtioctl((u_long)cmd, (caddr_t)data, p));

        return ((*so->so_proto->pr_usrreq)(so, PRU_CONTROL,

            (struct mbuf *)cmd, (struct mbuf *)data, (struct mbuf *)0));

}

#ifdef __ECOS

int

soo_select(struct file *fp, int which)

#else

int

soo_select(fp, which, p)

        struct file *fp;

        int which;

        struct proc *p;

#endif

{

        register struct socket *so = (struct socket *)fp->f_data;

        register int s = splsoftnet();

#ifdef __ECOS

        void *p = 0;

#endif

        switch (which) {

        case FREAD:

                if (soreadable(so)) {

                        splx(s);

                        return (1);

                }

                selrecord(p, &so->so_rcv.sb_sel);

                so->so_rcv.sb_flags |= SB_SEL;

                break;

        case FWRITE:

                if (sowriteable(so)) {

                        splx(s);

                        return (1);

                }

                selrecord(p, &so->so_snd.sb_sel);

                so->so_snd.sb_flags |= SB_SEL;

                break;

        case 0:

                if (so->so_oobmark || (so->so_state & SS_RCVATMARK)) {

                        splx(s);

                        return (1);

                }

                selrecord(p, &so->so_rcv.sb_sel);

                so->so_rcv.sb_flags |= SB_SEL;

                break;

        }

        splx(s);

        return (0);

}

#ifndef __ECOS

int

soo_stat(so, ub)

        register struct socket *so;

        register struct stat *ub;

{

        bzero((caddr_t)ub, sizeof (*ub));

        ub->st_mode = S_IFSOCK;

        return ((*so->so_proto->pr_usrreq)(so, PRU_SENSE,

            (struct mbuf *)ub, (struct mbuf *)0,

            (struct mbuf *)0));

}

#endif

#ifdef __ECOS

int

soo_close(struct file *fp)

#else

/* ARGSUSED */

int

soo_close(fp, p)

        struct file *fp;

        struct proc *p;

#endif

{

        int error = 0;

        if (fp->f_data)

                error = soclose((struct socket *)fp->f_data);

        fp->f_data = 0;

        return (error);

}