cd450d6714
used.
176 lines
4.8 KiB
C
176 lines
4.8 KiB
C
/*
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* Copyright (c) 1982, 1986, 1990, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)sys_socket.c 8.1 (Berkeley) 6/10/93
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* $Id: sys_socket.c,v 1.16 1997/09/14 02:52:15 peter Exp $
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*/
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/file.h>
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#include <sys/protosw.h>
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#include <sys/socket.h>
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#include <sys/socketvar.h>
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#include <sys/filio.h> /* XXX */
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#include <sys/sockio.h>
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#include <sys/stat.h>
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#include <sys/uio.h>
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#include <net/if.h>
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#include <net/route.h>
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static int soo_read __P((struct file *fp, struct uio *uio,
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struct ucred *cred));
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static int soo_write __P((struct file *fp, struct uio *uio,
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struct ucred *cred));
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static int soo_close __P((struct file *fp, struct proc *p));
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struct fileops socketops =
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{ soo_read, soo_write, soo_ioctl, soo_poll, soo_close };
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/* ARGSUSED */
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static int
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soo_read(fp, uio, cred)
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struct file *fp;
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struct uio *uio;
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struct ucred *cred;
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{
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struct socket *so = (struct socket *)fp->f_data;
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return so->so_proto->pr_usrreqs->pru_soreceive(so, 0, uio, 0, 0, 0);
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}
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/* ARGSUSED */
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static int
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soo_write(fp, uio, cred)
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struct file *fp;
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struct uio *uio;
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struct ucred *cred;
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{
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struct socket *so = (struct socket *)fp->f_data;
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return so->so_proto->pr_usrreqs->pru_sosend(so, 0, uio, 0, 0, 0,
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uio->uio_procp);
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}
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int
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soo_ioctl(fp, cmd, data, p)
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struct file *fp;
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int cmd;
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register caddr_t data;
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struct proc *p;
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{
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register struct socket *so = (struct socket *)fp->f_data;
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switch (cmd) {
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case FIONBIO:
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if (*(int *)data)
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so->so_state |= SS_NBIO;
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else
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so->so_state &= ~SS_NBIO;
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return (0);
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case FIOASYNC:
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if (*(int *)data) {
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so->so_state |= SS_ASYNC;
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so->so_rcv.sb_flags |= SB_ASYNC;
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so->so_snd.sb_flags |= SB_ASYNC;
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} else {
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so->so_state &= ~SS_ASYNC;
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so->so_rcv.sb_flags &= ~SB_ASYNC;
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so->so_snd.sb_flags &= ~SB_ASYNC;
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}
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return (0);
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case FIONREAD:
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*(int *)data = so->so_rcv.sb_cc;
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return (0);
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case SIOCSPGRP:
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so->so_pgid = *(int *)data;
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return (0);
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case SIOCGPGRP:
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*(int *)data = so->so_pgid;
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return (0);
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case SIOCATMARK:
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*(int *)data = (so->so_state&SS_RCVATMARK) != 0;
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return (0);
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}
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/*
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* Interface/routing/protocol specific ioctls:
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* interface and routing ioctls should have a
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* different entry since a socket's unnecessary
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*/
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if (IOCGROUP(cmd) == 'i')
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return (ifioctl(so, cmd, data, p));
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if (IOCGROUP(cmd) == 'r')
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return (rtioctl(cmd, data, p));
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return ((*so->so_proto->pr_usrreqs->pru_control)(so, cmd, data, 0, p));
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}
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int
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soo_poll(fp, events, cred, p)
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struct file *fp;
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int events;
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struct ucred *cred;
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struct proc *p;
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{
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struct socket *so = (struct socket *)fp->f_data;
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return so->so_proto->pr_usrreqs->pru_sopoll(so, events, cred, p);
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}
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int
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soo_stat(so, ub)
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register struct socket *so;
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register struct stat *ub;
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{
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bzero((caddr_t)ub, sizeof (*ub));
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ub->st_mode = S_IFSOCK;
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return ((*so->so_proto->pr_usrreqs->pru_sense)(so, ub));
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}
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/* ARGSUSED */
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static int
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soo_close(fp, p)
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struct file *fp;
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struct proc *p;
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{
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int error = 0;
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if (fp->f_data)
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error = soclose((struct socket *)fp->f_data);
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fp->f_data = 0;
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return (error);
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}
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