X-Git-Url: https://git.subgeniuskitty.com/unix-history/.git/blobdiff_plain/d08c5322d357df78a10683f546626091e7f589d1..943685687a914f34bb028d07fefeff4a802b6d5b:/usr/src/sys/kern/uipc_syscalls.c

diff --git a/usr/src/sys/kern/uipc_syscalls.c b/usr/src/sys/kern/uipc_syscalls.c
index fab7a99ac2..bd683e81f1 100644
--- a/usr/src/sys/kern/uipc_syscalls.c
+++ b/usr/src/sys/kern/uipc_syscalls.c
@@ -1,388 +1,824 @@
-/*	uipc_syscalls.c	4.12	81/12/20	*/
-
-#include "../h/param.h"
-#include "../h/systm.h"
-#include "../h/dir.h"
-#include "../h/user.h"
-#include "../h/proc.h"
-#include "../h/file.h"
-#include "../h/inode.h"
-#include "../h/buf.h"
-#include "../h/mbuf.h"
-#include "../h/protosw.h"
-#include "../h/socket.h"
-#include "../h/socketvar.h"
-#include "../net/in.h"
-#include "../net/in_systm.h"
+/*	uipc_syscalls.c	6.4	84/08/29	*/
 
-/*
- * Socket system call interface.
- *
- * These routines interface the socket routines to UNIX,
- * isolating the system interface from the socket-protocol interface.
- *
- * TODO:
- *	SO_INTNOTIFY
- */
+#include "param.h"
+#include "systm.h"
+#include "dir.h"
+#include "user.h"
+#include "proc.h"
+#include "file.h"
+#include "inode.h"
+#include "buf.h"
+#include "mbuf.h"
+#include "protosw.h"
+#include "socket.h"
+#include "socketvar.h"
+#include "uio.h"
 
-static	struct sockproto localproto = { PF_UNIX, 0 };
 /*
- * Pipe system call interface.
+ * System call interface to the socket abstraction.
  */
-spipe()
+
+struct	file *getsock();
+extern	struct fileops socketops;
+
+socket()
 {
-	register struct file *rf, *wf;
-	struct socket *rso, *wso;
-	int r;
-COUNT(SPIPE);
-	
-	u.u_error = socreate(&rso, SOCK_STREAM,
-	    &localproto, (struct sockaddr *)0, 0);
-	if (u.u_error)
+	register struct a {
+		int	domain;
+		int	type;
+		int	protocol;
+	} *uap = (struct a *)u.u_ap;
+	struct socket *so;
+	register struct file *fp;
+
+	if ((fp = falloc()) == NULL)
 		return;
-	u.u_error = socreate(&wso, SOCK_STREAM,
-	    &localproto, (struct sockaddr *)0, 0);
+	fp->f_flag = FREAD|FWRITE;
+	fp->f_type = DTYPE_SOCKET;
+	fp->f_ops = &socketops;
+	u.u_error = socreate(uap->domain, &so, uap->type, uap->protocol);
 	if (u.u_error)
-		goto free;
-	rf = falloc();
-	if (rf == NULL)
-		goto free2;
-	r = u.u_r.r_val1;
-	rf->f_flag = FREAD|FSOCKET;
-	rf->f_socket = rso;
-	wf = falloc();
-	if (wf == NULL)
-		goto free3;
-	wf->f_flag = FWRITE|FSOCKET;
-	wf->f_socket = wso;
-	u.u_r.r_val2 = u.u_r.r_val1;
-	u.u_r.r_val1 = r;
-	if (piconnect(wso, rso) == 0)
-		goto free4;
+		goto bad;
+	fp->f_data = (caddr_t)so;
 	return;
-free4:
-	wf->f_count = 0;
+bad:
 	u.u_ofile[u.u_r.r_val1] = 0;
-free3:
-	rf->f_count = 0;
-	u.u_ofile[r] = 0;
-free2:
-	wso->so_state |= SS_USERGONE;
-	sofree(wso);
-free:
-	rso->so_state |= SS_USERGONE;
-	sofree(rso);
+	fp->f_count = 0;
 }
 
-/*
- * Splice system call interface.
- */
-ssplice()
+bind()
 {
 	register struct a {
-		int	fd1;
-		int	fd2;
-	} *ap = (struct a *)u.u_ap;
-	struct file *f1, *f2;
-COUNT(SSPLICE);
+		int	s;
+		caddr_t	name;
+		int	namelen;
+	} *uap = (struct a *)u.u_ap;
+	register struct file *fp;
+	struct mbuf *nam;
 
-	f1 = getf(ap->fd1);
-	if (f1 == NULL)
-		return;
-	f2 = getf(ap->fd2);
-	if (f2 == NULL)
-		return;
-	if (f1 == f2) {
-		u.u_error = EINVAL;
-		return;
-	}
-	if ((f1->f_flag & FSOCKET) == 0 || (f2->f_flag & FSOCKET) == 0) {
-		u.u_error = ENOTSOCK;
-		return;
-	}
-	if (f1->f_count > 1 || f2->f_count > 1) {
-		u.u_error = ETOOMANYREFS;
+	fp = getsock(uap->s);
+	if (fp == 0)
 		return;
-	}
-	u.u_error = sosplice(f1->f_socket, f2->f_socket);
+	u.u_error = sockargs(&nam, uap->name, uap->namelen);
 	if (u.u_error)
 		return;
-	u.u_ofile[ap->fd1] = 0;
-	u.u_ofile[ap->fd2] = 0;
-	f1->f_count = 0;
-	f2->f_count = 0;
+	u.u_error = sobind((struct socket *)fp->f_data, nam);
+	m_freem(nam);
 }
 
-/*
- * Socket system call interface.  Copy sa arguments
- * set up file descriptor and call internal socket
- * creation routine.
- */
-ssocket()
+listen()
 {
 	register struct a {
-		int	type;
-		struct	sockproto *asp;
-		struct	sockaddr *asa;
-		int	options;
+		int	s;
+		int	backlog;
 	} *uap = (struct a *)u.u_ap;
-	struct sockproto sp;
-	struct sockaddr sa;
-	struct socket *so;
 	register struct file *fp;
-COUNT(SSOCKET);
 
-	if ((fp = falloc()) == NULL)
-		return;
-	fp->f_flag = FSOCKET|FREAD|FWRITE;
-	if (uap->asp && copyin((caddr_t)uap->asp, (caddr_t)&sp, sizeof (sp)) ||
-	    uap->asa && copyin((caddr_t)uap->asa, (caddr_t)&sa, sizeof (sa))) {
-		u.u_error = EFAULT;
+	fp = getsock(uap->s);
+	if (fp == 0)
 		return;
-	}
-	u.u_error = socreate(&so, uap->type,
-	    uap->asp ? &sp : 0, uap->asa ? &sa : 0, uap->options);
-	if (u.u_error)
-		goto bad;
-	fp->f_socket = so;
-	return;
-bad:
-	u.u_ofile[u.u_r.r_val1] = 0;
-	fp->f_count = 0;
+	u.u_error = solisten((struct socket *)fp->f_data, uap->backlog);
 }
 
-/*
- * Accept system call interface.
- */
-saccept()
+accept()
 {
 	register struct a {
-		int	fdes;
-		struct	sockaddr *asa;
+		int	s;
+		caddr_t	name;
+		int	*anamelen;
 	} *uap = (struct a *)u.u_ap;
-	struct sockaddr sa;
 	register struct file *fp;
-	struct socket *so;
+	struct mbuf *nam;
+	int namelen;
 	int s;
-COUNT(SACCEPT);
+	register struct socket *so;
 
-	if (uap->asa && useracc((caddr_t)uap->asa, sizeof (sa), B_WRITE)==0) {
+	if (uap->name == 0)
+		goto noname;
+	u.u_error = copyin((caddr_t)uap->anamelen, (caddr_t)&namelen,
+		sizeof (namelen));
+	if (u.u_error)
+		return;
+	if (useracc((caddr_t)uap->name, (u_int)namelen, B_WRITE) == 0) {
 		u.u_error = EFAULT;
 		return;
 	}
-	fp = getf(uap->fdes);
+noname:
+	fp = getsock(uap->s);
 	if (fp == 0)
 		return;
-	if ((fp->f_flag & FSOCKET) == 0) {
-		u.u_error = ENOTSOCK;
+	s = splnet();
+	so = (struct socket *)fp->f_data;
+	if ((so->so_options & SO_ACCEPTCONN) == 0) {
+		u.u_error = EINVAL;
+		splx(s);
 		return;
 	}
-	s = splnet();
-	so = fp->f_socket;
-	if ((so->so_options & SO_NBIO) &&
-	    (so->so_state & SS_CONNAWAITING) == 0) {
+	if ((so->so_state & SS_NBIO) && so->so_qlen == 0) {
 		u.u_error = EWOULDBLOCK;
 		splx(s);
 		return;
 	}
-	while ((so->so_state & SS_CONNAWAITING) == 0)
+	while (so->so_qlen == 0 && so->so_error == 0) {
+		if (so->so_state & SS_CANTRCVMORE) {
+			so->so_error = ECONNABORTED;
+			break;
+		}
 		sleep((caddr_t)&so->so_timeo, PZERO+1);
-	u.u_error = soaccept(so, &sa);
-	if (u.u_error) {
+	}
+	if (so->so_error) {
+		u.u_error = so->so_error;
+		splx(s);
+		return;
+	}
+	if (ufalloc(0) < 0) {
 		splx(s);
 		return;
 	}
-	if (uap->asa)
-		(void) copyout((caddr_t)&sa, (caddr_t)uap->asa, sizeof (sa));
-	/* deal with new file descriptor case */
-	/* u.u_r.r_val1 = ... */
+	fp = falloc();
+	if (fp == 0) {
+		u.u_ofile[u.u_r.r_val1] = 0;
+		splx(s);
+		return;
+	}
+	{ struct socket *aso = so->so_q;
+	  if (soqremque(aso, 1) == 0)
+		panic("accept");
+	  so = aso;
+	}
+	fp->f_type = DTYPE_SOCKET;
+	fp->f_flag = FREAD|FWRITE;
+	fp->f_ops = &socketops;
+	fp->f_data = (caddr_t)so;
+	nam = m_get(M_WAIT, MT_SONAME);
+	(void) soaccept(so, nam);
+	if (uap->name) {
+		if (namelen > nam->m_len)
+			namelen = nam->m_len;
+		/* SHOULD COPY OUT A CHAIN HERE */
+		(void) copyout(mtod(nam, caddr_t), (caddr_t)uap->name,
+		    (u_int)namelen);
+		(void) copyout((caddr_t)&namelen, (caddr_t)uap->anamelen,
+		    sizeof (*uap->anamelen));
+	}
+	m_freem(nam);
 	splx(s);
 }
 
-/*
- * Connect socket to foreign peer; system call
- * interface.  Copy sa arguments and call internal routine.
- */
-sconnect()
+connect()
 {
 	register struct a {
-		int	fdes;
-		struct	sockaddr *a;
+		int	s;
+		caddr_t	name;
+		int	namelen;
 	} *uap = (struct a *)u.u_ap;
-	struct sockaddr sa;
 	register struct file *fp;
 	register struct socket *so;
+	struct mbuf *nam;
 	int s;
-COUNT(SCONNECT);
 
-	if (copyin((caddr_t)uap->a, (caddr_t)&sa, sizeof (sa))) {
-		u.u_error = EFAULT;
-		return;
-	}
-	fp = getf(uap->fdes);
+	fp = getsock(uap->s);
 	if (fp == 0)
 		return;
-	if ((fp->f_flag & FSOCKET) == 0) {
-		u.u_error = ENOTSOCK;
-		return;
-	}
-	so = fp->f_socket;
-	u.u_error = soconnect(so, &sa);
+	so = (struct socket *)fp->f_data;
+	u.u_error = sockargs(&nam, uap->name, uap->namelen);
 	if (u.u_error)
 		return;
+	u.u_error = soconnect(so, nam);
+	if (u.u_error)
+		goto bad;
 	s = splnet();
-	if ((so->so_options & SO_NBIO) &&
+	if ((so->so_state & SS_NBIO) &&
 	    (so->so_state & SS_ISCONNECTING)) {
 		u.u_error = EINPROGRESS;
-		splx(s);
-		return;
+		goto bad2;
+	}
+	if (setjmp(&u.u_qsave)) {
+		if (u.u_error == 0)
+			u.u_error = EINTR;
+		goto bad2;
 	}
 	while ((so->so_state & SS_ISCONNECTING) && so->so_error == 0)
 		sleep((caddr_t)&so->so_timeo, PZERO+1);
 	u.u_error = so->so_error;
 	so->so_error = 0;
+bad2:
 	splx(s);
+bad:
+	m_freem(nam);
 }
 
-/*
- * Disconnect socket from foreign peer; system call
- * interface.  Copy sa arguments and call internal routine.
- */
-sdisconnect()
+socketpair()
 {
 	register struct a {
-		int	fdes;
-		struct	sockaddr *asa;
+		int	domain;
+		int	type;
+		int	protocol;
+		int	*rsv;
 	} *uap = (struct a *)u.u_ap;
-	struct sockaddr sa;
-	register struct file *fp;
-	register struct socket *so;
-	int s;
-COUNT(SDISCONNECT);
+	register struct file *fp1, *fp2;
+	struct socket *so1, *so2;
+	int sv[2];
 
-	if (uap->asa &&
-	    copyin((caddr_t)uap->asa, (caddr_t)&sa, sizeof (sa))) {
+	if (useracc((caddr_t)uap->rsv, 2 * sizeof (int), B_WRITE) == 0) {
 		u.u_error = EFAULT;
 		return;
 	}
-	fp = getf(uap->fdes);
-	if (fp == 0)
+	u.u_error = socreate(uap->domain, &so1, uap->type, uap->protocol);
+	if (u.u_error)
 		return;
-	if ((fp->f_flag & FSOCKET) == 0) {
-		u.u_error = ENOTSOCK;
+	u.u_error = socreate(uap->domain, &so2, uap->type, uap->protocol);
+	if (u.u_error)
+		goto free;
+	fp1 = falloc();
+	if (fp1 == NULL)
+		goto free2;
+	sv[0] = u.u_r.r_val1;
+	fp1->f_flag = FREAD|FWRITE;
+	fp1->f_type = DTYPE_SOCKET;
+	fp1->f_ops = &socketops;
+	fp1->f_data = (caddr_t)so1;
+	fp2 = falloc();
+	if (fp2 == NULL)
+		goto free3;
+	fp2->f_flag = FREAD|FWRITE;
+	fp2->f_type = DTYPE_SOCKET;
+	fp2->f_ops = &socketops;
+	fp2->f_data = (caddr_t)so2;
+	sv[1] = u.u_r.r_val1;
+	u.u_error = soconnect2(so1, so2);
+	if (u.u_error)
+		goto free4;
+	(void) copyout((caddr_t)sv, (caddr_t)uap->rsv, 2 * sizeof (int));
+	return;
+free4:
+	fp2->f_count = 0;
+	u.u_ofile[sv[1]] = 0;
+free3:
+	fp1->f_count = 0;
+	u.u_ofile[sv[0]] = 0;
+free2:
+	so2->so_state |= SS_NOFDREF;
+	sofree(so2);
+free:
+	so1->so_state |= SS_NOFDREF;
+	sofree(so1);
+}
+
+sendto()
+{
+	register struct a {
+		int	s;
+		caddr_t	buf;
+		int	len;
+		int	flags;
+		caddr_t	to;
+		int	tolen;
+	} *uap = (struct a *)u.u_ap;
+	struct msghdr msg;
+	struct iovec aiov;
+
+	msg.msg_name = uap->to;
+	msg.msg_namelen = uap->tolen;
+	msg.msg_iov = &aiov;
+	msg.msg_iovlen = 1;
+	aiov.iov_base = uap->buf;
+	aiov.iov_len = uap->len;
+	msg.msg_accrights = 0;
+	msg.msg_accrightslen = 0;
+	sendit(uap->s, &msg, uap->flags);
+}
+
+send()
+{
+	register struct a {
+		int	s;
+		caddr_t	buf;
+		int	len;
+		int	flags;
+	} *uap = (struct a *)u.u_ap;
+	struct msghdr msg;
+	struct iovec aiov;
+
+	msg.msg_name = 0;
+	msg.msg_namelen = 0;
+	msg.msg_iov = &aiov;
+	msg.msg_iovlen = 1;
+	aiov.iov_base = uap->buf;
+	aiov.iov_len = uap->len;
+	msg.msg_accrights = 0;
+	msg.msg_accrightslen = 0;
+	sendit(uap->s, &msg, uap->flags);
+}
+
+sendmsg()
+{
+	register struct a {
+		int	s;
+		caddr_t	msg;
+		int	flags;
+	} *uap = (struct a *)u.u_ap;
+	struct msghdr msg;
+	struct iovec aiov[MSG_MAXIOVLEN];
+
+	u.u_error = copyin(uap->msg, (caddr_t)&msg, sizeof (msg));
+	if (u.u_error)
+		return;
+	if ((u_int)msg.msg_iovlen >= sizeof (aiov) / sizeof (aiov[0])) {
+		u.u_error = EMSGSIZE;
 		return;
 	}
-	so = fp->f_socket;
-	u.u_error = sodisconnect(so, uap->asa ? &sa : 0);
+	u.u_error =
+	    copyin((caddr_t)msg.msg_iov, (caddr_t)aiov,
+		(unsigned)(msg.msg_iovlen * sizeof (aiov[0])));
 	if (u.u_error)
 		return;
-	s = splnet();
-	if ((so->so_options&SO_NBIO) && (so->so_state&SS_ISDISCONNECTING)) {
-		u.u_error = EINPROGRESS;
-		splx(s);
+	msg.msg_iov = aiov;
+#ifdef notdef
+printf("sendmsg name %x namelen %d iov %x iovlen %d accrights %x &len %d\n",
+msg.msg_name, msg.msg_namelen, msg.msg_iov, msg.msg_iovlen,
+msg.msg_accrights, msg.msg_accrightslen);
+#endif
+	sendit(uap->s, &msg, uap->flags);
+}
+
+sendit(s, mp, flags)
+	int s;
+	register struct msghdr *mp;
+	int flags;
+{
+	register struct file *fp;
+	struct uio auio;
+	register struct iovec *iov;
+	register int i;
+	struct mbuf *to, *rights;
+	int len;
+	
+	fp = getsock(s);
+	if (fp == 0)
 		return;
+	auio.uio_iov = mp->msg_iov;
+	auio.uio_iovcnt = mp->msg_iovlen;
+	auio.uio_segflg = UIO_USERSPACE;
+	auio.uio_offset = 0;			/* XXX */
+	auio.uio_resid = 0;
+	iov = mp->msg_iov;
+	for (i = 0; i < mp->msg_iovlen; i++) {
+		if (iov->iov_len < 0) {
+			u.u_error = EINVAL;
+			return;
+		}
+		if (iov->iov_len == 0)
+			continue;
+		if (useracc(iov->iov_base, (u_int)iov->iov_len, B_READ) == 0) {
+			u.u_error = EFAULT;
+			return;
+		}
+		auio.uio_resid += iov->iov_len;
+		iov++;
 	}
-	while ((so->so_state & SS_ISDISCONNECTING) && so->so_error == 0)
-		sleep((caddr_t)&so->so_timeo, PZERO+1);
-	u.u_error = so->so_error;
-	so->so_error = 0;
-	splx(s);
+	if (mp->msg_name) {
+		u.u_error =
+		    sockargs(&to, mp->msg_name, mp->msg_namelen);
+		if (u.u_error)
+			return;
+	} else
+		to = 0;
+	if (mp->msg_accrights) {
+		u.u_error =
+		    sockargs(&rights, mp->msg_accrights, mp->msg_accrightslen);
+		if (u.u_error)
+			goto bad;
+	} else
+		rights = 0;
+	len = auio.uio_resid;
+	u.u_error =
+	    sosend((struct socket *)fp->f_data, to, &auio, flags, rights);
+	u.u_r.r_val1 = len - auio.uio_resid;
+	if (rights)
+		m_freem(rights);
+bad:
+	if (to)
+		m_freem(to);
 }
 
-/*
- * Send data on socket.
- */
-ssend()
+recvfrom()
 {
 	register struct a {
-		int	fdes;
-		struct	sockaddr *asa;
-		caddr_t	cbuf;
-		unsigned count;
+		int	s;
+		caddr_t	buf;
+		int	len;
+		int	flags;
+		caddr_t	from;
+		int	*fromlenaddr;
+	} *uap = (struct a *)u.u_ap;
+	struct msghdr msg;
+	struct iovec aiov;
+	int len;
+
+	u.u_error = copyin((caddr_t)uap->fromlenaddr, (caddr_t)&len,
+	   sizeof (len));
+	if (u.u_error)
+		return;
+	msg.msg_name = uap->from;
+	msg.msg_namelen = len;
+	msg.msg_iov = &aiov;
+	msg.msg_iovlen = 1;
+	aiov.iov_base = uap->buf;
+	aiov.iov_len = uap->len;
+	msg.msg_accrights = 0;
+	msg.msg_accrightslen = 0;
+	recvit(uap->s, &msg, uap->flags, (caddr_t)uap->fromlenaddr, (caddr_t)0);
+}
+
+recv()
+{
+	register struct a {
+		int	s;
+		caddr_t	buf;
+		int	len;
+		int	flags;
+	} *uap = (struct a *)u.u_ap;
+	struct msghdr msg;
+	struct iovec aiov;
+
+	msg.msg_name = 0;
+	msg.msg_namelen = 0;
+	msg.msg_iov = &aiov;
+	msg.msg_iovlen = 1;
+	aiov.iov_base = uap->buf;
+	aiov.iov_len = uap->len;
+	msg.msg_accrights = 0;
+	msg.msg_accrightslen = 0;
+	recvit(uap->s, &msg, uap->flags, (caddr_t)0, (caddr_t)0);
+}
+
+recvmsg()
+{
+	register struct a {
+		int	s;
+		struct	msghdr *msg;
+		int	flags;
 	} *uap = (struct a *)u.u_ap;
+	struct msghdr msg;
+	struct iovec aiov[MSG_MAXIOVLEN];
+
+	u.u_error = copyin((caddr_t)uap->msg, (caddr_t)&msg, sizeof (msg));
+	if (u.u_error)
+		return;
+	if ((u_int)msg.msg_iovlen >= sizeof (aiov) / sizeof (aiov[0])) {
+		u.u_error = EMSGSIZE;
+		return;
+	}
+	u.u_error =
+	    copyin((caddr_t)msg.msg_iov, (caddr_t)aiov,
+		(unsigned)(msg.msg_iovlen * sizeof (aiov[0])));
+	if (u.u_error)
+		return;
+	msg.msg_iov = aiov;
+	if (msg.msg_accrights)
+		if (useracc((caddr_t)msg.msg_accrights,
+		    (unsigned)msg.msg_accrightslen, B_WRITE) == 0) {
+			u.u_error = EFAULT;
+			return;
+		}
+	recvit(uap->s, &msg, uap->flags,
+	    (caddr_t)&uap->msg->msg_namelen,
+	    (caddr_t)&uap->msg->msg_accrightslen);
+}
+
+recvit(s, mp, flags, namelenp, rightslenp)
+	int s;
+	register struct msghdr *mp;
+	int flags;
+	caddr_t namelenp, rightslenp;
+{
 	register struct file *fp;
-	struct sockaddr sa;
-COUNT(SSEND);
+	struct uio auio;
+	register struct iovec *iov;
+	register int i;
+	struct mbuf *from, *rights;
+	int len;
+	
+	fp = getsock(s);
+	if (fp == 0)
+		return;
+	auio.uio_iov = mp->msg_iov;
+	auio.uio_iovcnt = mp->msg_iovlen;
+	auio.uio_segflg = UIO_USERSPACE;
+	auio.uio_offset = 0;			/* XXX */
+	auio.uio_resid = 0;
+	iov = mp->msg_iov;
+	for (i = 0; i < mp->msg_iovlen; i++) {
+		if (iov->iov_len < 0) {
+			u.u_error = EINVAL;
+			return;
+		}
+		if (iov->iov_len == 0)
+			continue;
+		if (useracc(iov->iov_base, (u_int)iov->iov_len, B_WRITE) == 0) {
+			u.u_error = EFAULT;
+			return;
+		}
+		auio.uio_resid += iov->iov_len;
+		iov++;
+	}
+	len = auio.uio_resid;
+	u.u_error =
+	    soreceive((struct socket *)fp->f_data, &from, &auio,
+		flags, &rights);
+	u.u_r.r_val1 = len - auio.uio_resid;
+	if (mp->msg_name) {
+		len = mp->msg_namelen;
+		if (len <= 0 || from == 0)
+			len = 0;
+		else {
+			if (len > from->m_len)
+				len = from->m_len;
+			(void) copyout((caddr_t)mtod(from, caddr_t),
+			    (caddr_t)mp->msg_name, (unsigned)len);
+		}
+		(void) copyout((caddr_t)&len, namelenp, sizeof (int));
+	}
+	if (mp->msg_accrights) {
+		len = mp->msg_accrightslen;
+		if (len <= 0 || rights == 0)
+			len = 0;
+		else {
+			if (len > rights->m_len)
+				len = rights->m_len;
+			(void) copyout((caddr_t)mtod(rights, caddr_t),
+			    (caddr_t)mp->msg_accrights, (unsigned)len);
+		}
+		(void) copyout((caddr_t)&len, rightslenp, sizeof (int));
+	}
+	if (rights)
+		m_freem(rights);
+	if (from)
+		m_freem(from);
+}
 
-	fp = getf(uap->fdes);
+shutdown()
+{
+	struct a {
+		int	s;
+		int	how;
+	} *uap = (struct a *)u.u_ap;
+	struct file *fp;
+
+	fp = getsock(uap->s);
 	if (fp == 0)
 		return;
-	if ((fp->f_flag & FSOCKET) == 0) {
-		u.u_error = ENOTSOCK;
+	u.u_error = soshutdown((struct socket *)fp->f_data, uap->how);
+}
+
+setsockopt()
+{
+	struct a {
+		int	s;
+		int	level;
+		int	name;
+		caddr_t	val;
+		int	valsize;
+	} *uap = (struct a *)u.u_ap;
+	struct file *fp;
+	struct mbuf *m = NULL;
+
+	fp = getsock(uap->s);
+	if (fp == 0)
+		return;
+	if (uap->valsize > MLEN) {
+		u.u_error = EINVAL;
 		return;
 	}
-	u.u_base = uap->cbuf;
-	u.u_count = uap->count;
-	u.u_segflg = 0;
-	if (useracc(uap->cbuf, uap->count, B_READ) == 0 ||
-	    uap->asa && copyin((caddr_t)uap->asa, (caddr_t)&sa, sizeof (sa))) {
-		u.u_error = EFAULT;
+	if (uap->val) {
+		m = m_get(M_WAIT, MT_SOOPTS);
+		if (m == NULL) {
+			u.u_error = ENOBUFS;
+			return;
+		}
+		u.u_error =
+		    copyin(uap->val, mtod(m, caddr_t), (u_int)uap->valsize);
+		if (u.u_error)
+			goto bad;
+		m->m_len = uap->valsize;
+	}
+	u.u_error =
+	    sosetopt((struct socket *)fp->f_data, uap->level, uap->name, m);
+bad:
+	if (m != NULL)
+		(void) m_free(m);
+}
+
+getsockopt()
+{
+	struct a {
+		int	s;
+		int	level;
+		int	name;
+		caddr_t	val;
+		int	*avalsize;
+	} *uap = (struct a *)u.u_ap;
+	struct file *fp;
+	struct mbuf *m = NULL;
+	int valsize;
+
+	fp = getsock(uap->s);
+	if (fp == 0)
 		return;
+	if (uap->val) {
+		u.u_error = copyin((caddr_t)uap->avalsize, (caddr_t)&valsize,
+			sizeof (valsize));
+		if (u.u_error)
+			return;
+		m = m_get(M_WAIT, MT_SOOPTS);
+		if (m == NULL) {
+			u.u_error = ENOBUFS;
+			return;
+		}
 	}
-	u.u_error = sosend(fp->f_socket, uap->asa ? &sa : 0);
-	u.u_r.r_val1 = uap->count - u.u_count;
+	u.u_error =
+	    sogetopt((struct socket *)fp->f_data, uap->level, uap->name, m);
+	if (u.u_error)
+		goto bad;
+	if (uap->val) {
+		if (valsize > m->m_len)
+			valsize = m->m_len;
+		u.u_error = copyout(mtod(m, caddr_t), uap->val, (u_int)valsize);
+		if (u.u_error)
+			goto bad;
+		u.u_error = copyout((caddr_t)&valsize, (caddr_t)uap->avalsize,
+		    sizeof (valsize));
+	}
+bad:
+	if (m != NULL)
+		(void) m_free(m);
+}
+
+pipe()
+{
+	register struct file *rf, *wf;
+	struct socket *rso, *wso;
+	int r;
+
+	u.u_error = socreate(AF_UNIX, &rso, SOCK_STREAM, 0);
+	if (u.u_error)
+		return;
+	u.u_error = socreate(AF_UNIX, &wso, SOCK_STREAM, 0);
+	if (u.u_error)
+		goto free;
+	rf = falloc();
+	if (rf == NULL)
+		goto free2;
+	r = u.u_r.r_val1;
+	rf->f_flag = FREAD;
+	rf->f_type = DTYPE_SOCKET;
+	rf->f_ops = &socketops;
+	rf->f_data = (caddr_t)rso;
+	wf = falloc();
+	if (wf == NULL)
+		goto free3;
+	wf->f_flag = FWRITE;
+	wf->f_type = DTYPE_SOCKET;
+	wf->f_ops = &socketops;
+	wf->f_data = (caddr_t)wso;
+	u.u_r.r_val2 = u.u_r.r_val1;
+	u.u_r.r_val1 = r;
+	if (piconnect(wso, rso) == 0)
+		goto free4;
+	return;
+free4:
+	wf->f_count = 0;
+	u.u_ofile[u.u_r.r_val2] = 0;
+free3:
+	rf->f_count = 0;
+	u.u_ofile[r] = 0;
+free2:
+	wso->so_state |= SS_NOFDREF;
+	sofree(wso);
+free:
+	rso->so_state |= SS_NOFDREF;
+	sofree(rso);
 }
 
 /*
- * Receive data on socket.
+ * Get socket name.
  */
-sreceive()
+getsockname()
 {
 	register struct a {
 		int	fdes;
-		struct	sockaddr *asa;
-		caddr_t	cbuf;
-		u_int	count;
+		caddr_t	asa;
+		int	*alen;
 	} *uap = (struct a *)u.u_ap;
 	register struct file *fp;
-	struct sockaddr sa;
-COUNT(SRECEIVE);
+	register struct socket *so;
+	struct mbuf *m;
+	int len;
 
-	fp = getf(uap->fdes);
+	fp = getsock(uap->fdes);
 	if (fp == 0)
 		return;
-	if ((fp->f_flag & FSOCKET) == 0) {
-		u.u_error = ENOTSOCK;
+	u.u_error = copyin((caddr_t)uap->alen, (caddr_t)&len, sizeof (len));
+	if (u.u_error)
 		return;
-	}
-	u.u_base = uap->cbuf;
-	u.u_count = uap->count;
-	u.u_segflg = 0;
-	if (useracc(uap->cbuf, uap->count, B_WRITE) == 0 ||
-	    uap->asa && copyin((caddr_t)uap->asa, (caddr_t)&sa, sizeof (sa))) {
-		u.u_error = EFAULT;
+	so = (struct socket *)fp->f_data;
+	m = m_getclr(M_WAIT, MT_SONAME);
+	if (m == NULL) {
+		u.u_error = ENOBUFS;
 		return;
 	}
-	u.u_error = soreceive(fp->f_socket, uap->asa ? &sa : 0);
+	u.u_error = (*so->so_proto->pr_usrreq)(so, PRU_SOCKADDR, 0, m, 0);
 	if (u.u_error)
-		return;
-	if (uap->asa)
-		(void) copyout((caddr_t)&sa, (caddr_t)uap->asa, sizeof (sa));
-	u.u_r.r_val1 = uap->count - u.u_count;
+		goto bad;
+	if (len > m->m_len)
+		len = m->m_len;
+	u.u_error = copyout(mtod(m, caddr_t), (caddr_t)uap->asa, (u_int)len);
+	if (u.u_error)
+		goto bad;
+	u.u_error = copyout((caddr_t)&len, (caddr_t)uap->alen, sizeof (len));
+bad:
+	m_freem(m);
 }
 
 /*
- * Get socket address.
+ * Get name of peer for connected socket.
  */
-ssocketaddr()
+getpeername()
 {
 	register struct a {
 		int	fdes;
-		struct	sockaddr *asa;
+		caddr_t	asa;
+		int	*alen;
 	} *uap = (struct a *)u.u_ap;
 	register struct file *fp;
-COUNT(SSOCKETADDR);
+	register struct socket *so;
+	struct mbuf *m;
+	int len;
 
-	fp = getf(uap->fdes);
+	fp = getsock(uap->fdes);
 	if (fp == 0)
 		return;
-	if ((fp->f_flag & FSOCKET) == 0) {
-		u.u_error = ENOTSOCK;
+	so = (struct socket *)fp->f_data;
+	if ((so->so_state & SS_ISCONNECTED) == 0) {
+		u.u_error = ENOTCONN;
 		return;
 	}
-	if (copyout((caddr_t)&fp->f_socket->so_addr, (caddr_t)uap->asa, 
-	    sizeof (struct sockaddr))) {
-		u.u_error = EFAULT;
+	m = m_getclr(M_WAIT, MT_SONAME);
+	if (m == NULL) {
+		u.u_error = ENOBUFS;
 		return;
 	}
+	u.u_error = copyin((caddr_t)uap->alen, (caddr_t)&len, sizeof (len));
+	if (u.u_error)
+		return;
+	u.u_error = (*so->so_proto->pr_usrreq)(so, PRU_PEERADDR, 0, m, 0);
+	if (u.u_error)
+		goto bad;
+	if (len > m->m_len)
+		len = m->m_len;
+	u.u_error = copyout(mtod(m, caddr_t), (caddr_t)uap->asa, (u_int)len);
+	if (u.u_error)
+		goto bad;
+	u.u_error = copyout((caddr_t)&len, (caddr_t)uap->alen, sizeof (len));
+bad:
+	m_freem(m);
+}
+
+sockargs(aname, name, namelen)
+	struct mbuf **aname;
+	caddr_t name;
+	int namelen;
+{
+	register struct mbuf *m;
+	int error;
+
+	if (namelen > MLEN)
+		return (EINVAL);
+	m = m_get(M_WAIT, MT_SONAME);
+	if (m == NULL)
+		return (ENOBUFS);
+	m->m_len = namelen;
+	error = copyin(name, mtod(m, caddr_t), (u_int)namelen);
+	if (error)
+		(void) m_free(m);
+	else
+		*aname = m;
+	return (error);
+}
+
+struct file *
+getsock(fdes)
+	int fdes;
+{
+	register struct file *fp;
+
+	fp = getf(fdes);
+	if (fp == NULL)
+		return (0);
+	if (fp->f_type != DTYPE_SOCKET) {
+		u.u_error = ENOTSOCK;
+		return (0);
+	}
+	return (fp);
 }