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/* $OpenBSD: sys_socket.c,v 1.2 1997/02/24 14:19:59 niklas 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>
#include <sys/systm.h>
#include <sys/file.h>
#include <sys/mbuf.h>
#include <sys/protosw.h>
#include <sys/socket.h>
#include <sys/socketvar.h>
#include <sys/ioctl.h>
#include <sys/stat.h>
#include <net/if.h>
#include <net/route.h>
struct fileops socketops =
{ soo_read, soo_write, soo_ioctl, soo_select, soo_close };
/* ARGSUSED */
int
soo_read(fp, uio, cred)
struct file *fp;
struct uio *uio;
struct ucred *cred;
{
return (soreceive((struct socket *)fp->f_data, (struct mbuf **)0,
uio, (struct mbuf **)0, (struct mbuf **)0, (int *)0));
}
/* ARGSUSED */
int
soo_write(fp, uio, cred)
struct file *fp;
struct uio *uio;
struct ucred *cred;
{
return (sosend((struct socket *)fp->f_data, (struct mbuf *)0,
uio, (struct mbuf *)0, (struct mbuf *)0, 0));
}
int
soo_ioctl(fp, cmd, data, p)
struct file *fp;
u_long cmd;
register caddr_t data;
struct proc *p;
{
register struct socket *so = (struct socket *)fp->f_data;
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);
case SIOCSPGRP:
so->so_pgid = *(int *)data;
return (0);
case SIOCGPGRP:
*(int *)data = so->so_pgid;
return (0);
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, cmd, data, p));
if (IOCGROUP(cmd) == 'r')
return (rtioctl(cmd, data, p));
return ((*so->so_proto->pr_usrreq)(so, PRU_CONTROL,
(struct mbuf *)cmd, (struct mbuf *)data, (struct mbuf *)0));
}
int
soo_select(fp, which, p)
struct file *fp;
int which;
struct proc *p;
{
register struct socket *so = (struct socket *)fp->f_data;
register int s = splsoftnet();
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);
}
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));
}
/* ARGSUSED */
int
soo_close(fp, p)
struct file *fp;
struct proc *p;
{
int error = 0;
if (fp->f_data)
error = soclose((struct socket *)fp->f_data);
fp->f_data = 0;
return (error);
}
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