BSD 4.4 Lite sbin Sources

Note:  XNSrouted and routed NOT imported here, they shall be imported with
usr.sbin.

3 files changed, 712 insertions, 0 deletions

diff --git a/sbin/nfsd/Makefile b/sbin/nfsd/Makefile
new file mode 100644
index 0000000..35d0d0e
--- /dev/null
+++ b/sbin/nfsd/Makefile
@@ -0,0 +1,9 @@
+#	@(#)Makefile	8.1 (Berkeley) 6/5/93
+
+PROG=	nfsd
+CFLAGS+=-DNFS
+MAN8=	nfsd.0
+DPADD=	${LIBRPC}
+LDADD=	-lrpc
+
+.include <bsd.prog.mk>
diff --git a/sbin/nfsd/nfsd.8 b/sbin/nfsd/nfsd.8
new file mode 100644
index 0000000..4ee6c4b
--- /dev/null
+++ b/sbin/nfsd/nfsd.8
@@ -0,0 +1,114 @@
+.\" Copyright (c) 1989, 1991, 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.
+.\"
+.\"	@(#)nfsd.8	8.3 (Berkeley) 2/22/94
+.\"
+.Dd February 22, 1994
+.Dt NFSD 8
+.Os
+.Sh NAME
+.Nm nfsd
+.Nd remote
+.Tn NFS
+server
+.Sh SYNOPSIS
+.Nm nfsd
+.Op Fl rut
+.Op Fl n Ar num_servers
+.Sh DESCRIPTION
+.Nm Nfsd
+runs on a server machine to service
+.Tn NFS
+requests from client machines.
+At least one
+.Nm nfsd
+must be running for a machine to operate as a server.
+.Pp
+Unless otherwise specified, four servers for
+.Tn UDP
+transport are started.
+.Pp
+The following options are available:
+.Bl -tag -width Ds
+.It Fl r
+Register the
+.Tn NFS
+service with
+.Xr portmap 8
+without creating any servers.
+This option can be used along with the
+.Fl u
+or
+.Fl t
+options to re-register NFS if the portmap server is restarted.
+.It Fl n
+Specifies how many servers to create.
+.It Fl t
+Serve
+.Tn TCP NFS
+clients.
+.It Fl u
+Serve
+.Tn UDP NFS
+clients.
+.El
+.Pp
+For example, 
+.Dq Li "nfsd -u -t 6"
+serves
+.Tn UDP
+and
+.Tn TCP
+transports using six daemons.
+.Pp
+A server should run enough daemons to handle
+the maximum level of concurrency from its clients,
+typically four to six.
+.Pp
+.Nm Nfsd
+listens for service requests at the port indicated in the
+.Tn NFS
+server specification; see
+.%T "Network File System Protocol Specification" ,
+RFC1094.
+.Pp
+The
+.Nm nfsd
+utility exits 0 on success, and >0 if an error occurs.
+.Sh SEE ALSO
+.Xr nfsstat 1 ,
+.Xr nfssvc 2 ,
+.Xr mountd 8 ,
+.Xr portmap 8
+.Sh HISTORY
+The
+.Nm nfsd
+utility first appeared in 4.4BSD.
diff --git a/sbin/nfsd/nfsd.c b/sbin/nfsd/nfsd.c
new file mode 100644
index 0000000..63f4f00
--- /dev/null
+++ b/sbin/nfsd/nfsd.c
@@ -0,0 +1,589 @@
+/*
+ * Copyright (c) 1989, 1993, 1994
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Rick Macklem at The University of Guelph.
+ *
+ * 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.
+ */
+
+#ifndef lint
+static char copyright[] =
+"@(#) Copyright (c) 1989, 1993, 1994\n\
+	The Regents of the University of California.  All rights reserved.\n";
+#endif not lint
+
+#ifndef lint
+static char sccsid[] = "@(#)nfsd.c	8.7 (Berkeley) 2/22/94";
+#endif not lint
+
+#include <sys/param.h>
+#include <sys/syslog.h>
+#include <sys/ioctl.h>
+#include <sys/stat.h>
+#include <sys/wait.h>
+#include <sys/uio.h>
+#include <sys/ucred.h>
+#include <sys/mount.h>
+#include <sys/socket.h>
+#include <sys/socketvar.h>
+
+#include <rpc/rpc.h>
+#include <rpc/pmap_clnt.h>
+#include <rpc/pmap_prot.h>
+
+#ifdef ISO
+#include <netiso/iso.h>
+#endif
+#include <nfs/rpcv2.h>
+#include <nfs/nfsv2.h>
+#include <nfs/nfs.h>
+
+#ifdef KERBEROS
+#include <kerberosIV/des.h>
+#include <kerberosIV/krb.h>
+#endif
+
+#include <err.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <grp.h>
+#include <pwd.h>
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <strings.h>
+#include <unistd.h>
+
+/* Global defs */
+#ifdef DEBUG
+#define	syslog(e, s)	fprintf(stderr,(s))
+int	debug = 1;
+#else
+int	debug = 0;
+#endif
+
+struct	nfsd_srvargs nsd;
+char	**Argv = NULL;		/* pointer to argument vector */
+char	*LastArg = NULL;	/* end of argv */
+
+#ifdef KERBEROS
+char		lnam[ANAME_SZ];
+KTEXT_ST	kt;
+AUTH_DAT	auth;
+char		inst[INST_SZ];
+#endif
+
+void	nonfs __P((int));
+void	reapchild __P((int));
+void	setproctitle __P((char *));
+void	usage __P((void));
+
+/*
+ * Nfs server daemon mostly just a user context for nfssvc()
+ *
+ * 1 - do file descriptor and signal cleanup
+ * 2 - fork the nfsd(s)
+ * 3 - create server socket(s)
+ * 4 - register socket with portmap
+ *
+ * For connectionless protocols, just pass the socket into the kernel via.
+ * nfssvc().
+ * For connection based sockets, loop doing accepts. When you get a new
+ * socket from accept, pass the msgsock into the kernel via. nfssvc().
+ * The arguments are:
+ *	-c - support iso cltp clients
+ *	-r - reregister with portmapper
+ *	-t - support tcp nfs clients
+ *	-u - support udp nfs clients
+ * followed by "n" which is the number of nfsds' to fork off
+ */
+int
+main(argc, argv, envp)
+	int argc;
+	char *argv[], *envp[];
+{
+	extern int optind;
+	struct group *grp;
+	struct nfsd_args nfsdargs;
+	struct passwd *pwd;
+	struct ucred *cr;
+	struct sockaddr_in inetaddr, inetpeer;
+#ifdef ISO
+	struct sockaddr_iso isoaddr, isopeer;
+#endif
+	fd_set ready, sockbits;
+	int ch, cltpflag, connect_type_cnt, i, len, maxsock, msgsock;
+	int nfsdcnt, nfssvc_flag, on, reregister, sock, tcpflag, tcpsock;
+	int tp4cnt, tp4flag, tp4sock, tpipcnt, tpipflag, tpipsock, udpflag;
+	char *cp, **cpp;
+
+	/* Save start and extent of argv for setproctitle. */
+	Argv = argv;
+	if (envp == 0 || *envp == 0)
+		envp = argv;
+	while (*envp)
+		envp++;
+	LastArg = envp[-1] + strlen(envp[-1]);
+
+#define	MAXNFSDCNT	20
+#define	DEFNFSDCNT	 4
+	nfsdcnt = DEFNFSDCNT;
+	cltpflag = reregister = tcpflag = tp4cnt = tp4flag = tpipcnt = 0;
+	tpipflag = udpflag = 0;
+#ifdef ISO
+#define	GETOPT	"cn:rtu"
+#define	USAGE	"[-crtu] [-n num_servers]"
+#else
+#define	GETOPT	"n:rtu"
+#define	USAGE	"[-rtu] [-n num_servers]"
+#endif
+	while ((ch = getopt(argc, argv, GETOPT)) != EOF)
+		switch (ch) {
+		case 'n':
+			nfsdcnt = atoi(optarg);
+			if (nfsdcnt < 1 || nfsdcnt > MAXNFSDCNT) {
+				warnx("nfsd count %d; reset to %d", DEFNFSDCNT);
+				nfsdcnt = DEFNFSDCNT;
+			}
+			break;
+		case 'r':
+			reregister = 1;
+			break;
+		case 't':
+			tcpflag = 1;
+			break;
+		case 'u':
+			udpflag = 1;
+			break;
+#ifdef ISO
+		case 'c':
+			cltpflag = 1;
+			break;
+#ifdef notyet
+		case 'i':
+			tp4cnt = 1;
+			break;
+		case 'p':
+			tpipcnt = 1;
+			break;
+#endif /* notyet */
+#endif /* ISO */
+		default:
+		case '?':
+			usage();
+		};
+	argv += optind;
+	argc -= optind;
+
+	/*
+	 * XXX
+	 * Backward compatibility, trailing number is the count of daemons.
+	 */
+	if (argc > 1)
+		usage();
+	if (argc == 1) {
+		nfsdcnt = atoi(argv[0]);
+		if (nfsdcnt < 1 || nfsdcnt > MAXNFSDCNT) {
+			warnx("nfsd count %d; reset to %d", DEFNFSDCNT);
+			nfsdcnt = DEFNFSDCNT;
+		}
+	}
+
+	if (debug == 0) {
+		daemon(0, 0);
+		(void)signal(SIGHUP, SIG_IGN);
+		(void)signal(SIGINT, SIG_IGN);
+		(void)signal(SIGQUIT, SIG_IGN);
+		(void)signal(SIGSYS, nonfs);
+		(void)signal(SIGTERM, SIG_IGN);
+	}
+	(void)signal(SIGCHLD, reapchild);
+
+	if (reregister) {
+		if (udpflag &&
+		    !pmap_set(RPCPROG_NFS, NFS_VER2, IPPROTO_UDP, NFS_PORT))
+			err(1, "can't register with portmap for UDP.");
+		if (tcpflag &&
+		    !pmap_set(RPCPROG_NFS, NFS_VER2, IPPROTO_TCP, NFS_PORT))
+			err(1, "can't register with portmap for TCP.");
+		exit(0);
+	}
+	openlog("nfsd:", LOG_PID, LOG_DAEMON);
+
+	for (i = 0; i < nfsdcnt; i++) {
+		switch (fork()) {
+		case -1:
+			syslog(LOG_ERR, "fork: %m");
+			exit (1);
+		case 0:
+			break;
+		default:
+			continue;
+		}
+
+		setproctitle("nfsd-srv");
+		nfssvc_flag = NFSSVC_NFSD;
+		nsd.nsd_nfsd = NULL;
+#ifdef KERBEROS
+		nsd.nsd_authstr = (char *)kt.dat;
+#endif
+		while (nfssvc(nfssvc_flag, &nsd) < 0) {
+			if (errno != ENEEDAUTH) {
+				syslog(LOG_ERR, "nfssvc: %m");
+				exit(1);
+			}
+			nfssvc_flag = NFSSVC_NFSD | NFSSVC_AUTHINFAIL;
+#ifdef KERBEROS
+			kt.length = nsd.nsd_authlen;
+			kt.mbz = 0;
+			(void)strcpy(inst, "*");
+			if (krb_rd_req(&kt, "rcmd",
+			    inst, nsd.nsd_haddr, &auth, "") == RD_AP_OK &&
+			    krb_kntoln(&auth, lnam) == KSUCCESS &&
+			    (pwd = getpwnam(lnam)) != NULL) {
+				cr = &nsd.nsd_cr;
+				cr->cr_uid = pwd->pw_uid;
+				cr->cr_groups[0] = pwd->pw_gid;
+				cr->cr_ngroups = 1;
+				setgrent();
+				while ((grp = getgrent()) != NULL) {
+					if (grp->gr_gid == cr->cr_groups[0])
+						continue;
+					for (cpp = grp->gr_mem;
+					    *cpp != NULL; ++cpp)
+						if (!strcmp(*cpp, lnam))
+							break;
+					if (*cpp == NULL)
+						continue;
+					cr->cr_groups[cr->cr_ngroups++]
+					    = grp->gr_gid;
+					if (cr->cr_ngroups == NGROUPS)
+						break;
+				}
+				endgrent();
+				nfssvc_flag = NFSSVC_NFSD | NFSSVC_AUTHIN;
+			}
+#endif /* KERBEROS */
+		}
+		exit(0);
+	}
+
+	/* If we are serving udp, set up the socket. */
+	if (udpflag) {
+		if ((sock = socket(AF_INET, SOCK_DGRAM, 0)) < 0) {
+			syslog(LOG_ERR, "can't create udp socket");
+			exit(1);
+		}
+		inetaddr.sin_family = AF_INET;
+		inetaddr.sin_addr.s_addr = INADDR_ANY;
+		inetaddr.sin_port = htons(NFS_PORT);
+		inetaddr.sin_len = sizeof(inetaddr);
+		if (bind(sock,
+		    (struct sockaddr *)&inetaddr, sizeof(inetaddr)) < 0) {
+			syslog(LOG_ERR, "can't bind udp addr");
+			exit(1);
+		}
+		if (!pmap_set(RPCPROG_NFS, NFS_VER2, IPPROTO_UDP, NFS_PORT)) {
+			syslog(LOG_ERR, "can't register with udp portmap");
+			exit(1);
+		}
+		nfsdargs.sock = sock;
+		nfsdargs.name = NULL;
+		nfsdargs.namelen = 0;
+		if (nfssvc(NFSSVC_ADDSOCK, &nfsdargs) < 0) {
+			syslog(LOG_ERR, "can't Add UDP socket");
+			exit(1);
+		}
+		(void)close(sock);
+	}
+
+#ifdef ISO
+	/* If we are serving cltp, set up the socket. */
+	if (cltpflag) {
+		if ((sock = socket(AF_ISO, SOCK_DGRAM, 0)) < 0) {
+			syslog(LOG_ERR, "can't create cltp socket");
+			exit(1);
+		}
+		memset(&isoaddr, 0, sizeof(isoaddr));
+		isoaddr.siso_family = AF_ISO;
+		isoaddr.siso_tlen = 2;
+		cp = TSEL(&isoaddr);
+		*cp++ = (NFS_PORT >> 8);
+		*cp = (NFS_PORT & 0xff);
+		isoaddr.siso_len = sizeof(isoaddr);
+		if (bind(sock,
+		    (struct sockaddr *)&isoaddr, sizeof(isoaddr)) < 0) {
+			syslog(LOG_ERR, "can't bind cltp addr");
+			exit(1);
+		}
+#ifdef notyet
+		/*
+		 * XXX
+		 * Someday this should probably use "rpcbind", the son of
+		 * portmap.
+		 */
+		if (!pmap_set(RPCPROG_NFS, NFS_VER2, IPPROTO_UDP, NFS_PORT)) {
+			syslog(LOG_ERR, "can't register with udp portmap");
+			exit(1);
+		}
+#endif /* notyet */
+		nfsdargs.sock = sock;
+		nfsdargs.name = NULL;
+		nfsdargs.namelen = 0;
+		if (nfssvc(NFSSVC_ADDSOCK, &nfsdargs) < 0) {
+			syslog(LOG_ERR, "can't add UDP socket");
+			exit(1);
+		}
+		close(sock);
+	}
+#endif /* ISO */
+
+	/* Now set up the master server socket waiting for tcp connections. */
+	on = 1;
+	FD_ZERO(&sockbits);
+	connect_type_cnt = 0;
+	if (tcpflag) {
+		if ((tcpsock = socket(AF_INET, SOCK_STREAM, 0)) < 0) {
+			syslog(LOG_ERR, "can't create tcp socket");
+			exit(1);
+		}
+		if (setsockopt(tcpsock,
+		    SOL_SOCKET, SO_REUSEADDR, (char *)&on, sizeof(on)) < 0)
+			syslog(LOG_ERR, "setsockopt SO_REUSEADDR: %m");
+		inetaddr.sin_family = AF_INET;
+		inetaddr.sin_addr.s_addr = INADDR_ANY;
+		inetaddr.sin_port = htons(NFS_PORT);
+		inetaddr.sin_len = sizeof(inetaddr);
+		if (bind(tcpsock,
+		    (struct sockaddr *)&inetaddr, sizeof (inetaddr)) < 0) {
+			syslog(LOG_ERR, "can't bind tcp addr");
+			exit(1);
+		}
+		if (listen(tcpsock, 5) < 0) {
+			syslog(LOG_ERR, "listen failed");
+			exit(1);
+		}
+		if (!pmap_set(RPCPROG_NFS, NFS_VER2, IPPROTO_TCP, NFS_PORT)) {
+			syslog(LOG_ERR, "can't register tcp with portmap");
+			exit(1);
+		}
+		FD_SET(tcpsock, &sockbits);
+		maxsock = tcpsock;
+		connect_type_cnt++;
+	}
+
+#ifdef notyet
+	/* Now set up the master server socket waiting for tp4 connections. */
+	if (tp4flag) {
+		if ((tp4sock = socket(AF_ISO, SOCK_SEQPACKET, 0)) < 0) {
+			syslog(LOG_ERR, "can't create tp4 socket");
+			exit(1);
+		}
+		if (setsockopt(tp4sock,
+		    SOL_SOCKET, SO_REUSEADDR, (char *)&on, sizeof(on)) < 0)
+			syslog(LOG_ERR, "setsockopt SO_REUSEADDR: %m");
+		memset(&isoaddr, 0, sizeof(isoaddr));
+		isoaddr.siso_family = AF_ISO;
+		isoaddr.siso_tlen = 2;
+		cp = TSEL(&isoaddr);
+		*cp++ = (NFS_PORT >> 8);
+		*cp = (NFS_PORT & 0xff);
+		isoaddr.siso_len = sizeof(isoaddr);
+		if (bind(tp4sock,
+		    (struct sockaddr *)&isoaddr, sizeof (isoaddr)) < 0) {
+			syslog(LOG_ERR, "can't bind tp4 addr");
+			exit(1);
+		}
+		if (listen(tp4sock, 5) < 0) {
+			syslog(LOG_ERR, "listen failed");
+			exit(1);
+		}
+		/*
+		 * XXX
+		 * Someday this should probably use "rpcbind", the son of
+		 * portmap.
+		 */
+		if (!pmap_set(RPCPROG_NFS, NFS_VER2, IPPROTO_TCP, NFS_PORT)) {
+			syslog(LOG_ERR, "can't register tcp with portmap");
+			exit(1);
+		}
+		FD_SET(tp4sock, &sockbits);
+		maxsock = tp4sock;
+		connect_type_cnt++;
+	}
+
+	/* Now set up the master server socket waiting for tpip connections. */
+	if (tpipflag) {
+		if ((tpipsock = socket(AF_INET, SOCK_SEQPACKET, 0)) < 0) {
+			syslog(LOG_ERR, "can't create tpip socket");
+			exit(1);
+		}
+		if (setsockopt(tpipsock,
+		    SOL_SOCKET, SO_REUSEADDR, (char *)&on, sizeof(on)) < 0)
+			syslog(LOG_ERR, "setsockopt SO_REUSEADDR: %m");
+		inetaddr.sin_family = AF_INET;
+		inetaddr.sin_addr.s_addr = INADDR_ANY;
+		inetaddr.sin_port = htons(NFS_PORT);
+		inetaddr.sin_len = sizeof(inetaddr);
+		if (bind(tpipsock,
+		    (struct sockaddr *)&inetaddr, sizeof (inetaddr)) < 0) {
+			syslog(LOG_ERR, "can't bind tcp addr");
+			exit(1);
+		}
+		if (listen(tpipsock, 5) < 0) {
+			syslog(LOG_ERR, "listen failed");
+			exit(1);
+		}
+		/*
+		 * XXX
+		 * Someday this should probably use "rpcbind", the son of
+		 * portmap.
+		 */
+		if (!pmap_set(RPCPROG_NFS, NFS_VER2, IPPROTO_TCP, NFS_PORT)) {
+			syslog(LOG_ERR, "can't register tcp with portmap");
+			exit(1);
+		}
+		FD_SET(tpipsock, &sockbits);
+		maxsock = tpipsock;
+		connect_type_cnt++;
+	}
+#endif /* notyet */
+
+	if (connect_type_cnt == 0)
+		exit(0);
+
+	setproctitle("nfsd-master");
+
+	/*
+	 * Loop forever accepting connections and passing the sockets
+	 * into the kernel for the mounts.
+	 */
+	for (;;) {
+		ready = sockbits;
+		if (connect_type_cnt > 1) {
+			if (select(maxsock + 1,
+			    &ready, NULL, NULL, NULL) < 1) {
+				syslog(LOG_ERR, "select failed: %m");
+				exit(1);
+			}
+		}
+		if (tcpflag && FD_ISSET(tcpsock, &ready)) {
+			len = sizeof(inetpeer);
+			if ((msgsock = accept(tcpsock,
+			    (struct sockaddr *)&inetpeer, &len)) < 0) {
+				syslog(LOG_ERR, "accept failed: %m");
+				exit(1);
+			}
+			memset(inetpeer.sin_zero, 0, sizeof(inetpeer.sin_zero));
+			if (setsockopt(msgsock, SOL_SOCKET,
+			    SO_KEEPALIVE, (char *)&on, sizeof(on)) < 0)
+				syslog(LOG_ERR,
+				    "setsockopt SO_KEEPALIVE: %m");
+			nfsdargs.sock = msgsock;
+			nfsdargs.name = (caddr_t)&inetpeer;
+			nfsdargs.namelen = sizeof(inetpeer);
+			nfssvc(NFSSVC_ADDSOCK, &nfsdargs);
+			(void)close(msgsock);
+		}
+#ifdef notyet
+		if (tp4flag && FD_ISSET(tp4sock, &ready)) {
+			len = sizeof(isopeer);
+			if ((msgsock = accept(tp4sock,
+			    (struct sockaddr *)&isopeer, &len)) < 0) {
+				syslog(LOG_ERR, "accept failed: %m");
+				exit(1);
+			}
+			if (setsockopt(msgsock, SOL_SOCKET,
+			    SO_KEEPALIVE, (char *)&on, sizeof(on)) < 0)
+				syslog(LOG_ERR,
+				    "setsockopt SO_KEEPALIVE: %m");
+			nfsdargs.sock = msgsock;
+			nfsdargs.name = (caddr_t)&isopeer;
+			nfsdargs.namelen = len;
+			nfssvc(NFSSVC_ADDSOCK, &nfsdargs);
+			(void)close(msgsock);
+		}
+		if (tpipflag && FD_ISSET(tpipsock, &ready)) {
+			len = sizeof(inetpeer);
+			if ((msgsock = accept(tpipsock,
+			    (struct sockaddr *)&inetpeer, &len)) < 0) {
+				syslog(LOG_ERR, "Accept failed: %m");
+				exit(1);
+			}
+			if (setsockopt(msgsock, SOL_SOCKET,
+			    SO_KEEPALIVE, (char *)&on, sizeof(on)) < 0)
+				syslog(LOG_ERR, "setsockopt SO_KEEPALIVE: %m");
+			nfsdargs.sock = msgsock;
+			nfsdargs.name = (caddr_t)&inetpeer;
+			nfsdargs.namelen = len;
+			nfssvc(NFSSVC_ADDSOCK, &nfsdargs);
+			(void)close(msgsock);
+		}
+#endif /* notyet */
+	}
+}
+
+void
+usage()
+{
+	(void)fprintf(stderr, "nfsd %s\n", USAGE);
+	exit(1);
+}
+
+void
+nonfs(signo)
+	int signo;
+{
+	syslog(LOG_ERR, "missing system call: NFS not available.");
+}
+
+void
+reapchild(signo)
+	int signo;
+{
+
+	while (wait3(NULL, WNOHANG, NULL));
+}
+
+void
+setproctitle(a)
+	char *a;
+{
+	register char *cp;
+	char buf[80];
+
+	cp = Argv[0];
+	(void)snprintf(buf, sizeof(buf), "%s", a);
+	(void)strncpy(cp, buf, LastArg - cp);
+	cp += strlen(cp);
+	while (cp < LastArg)
+		*cp++ = ' ';
+}