diff --git a/usr.sbin/timed/timed/acksend.c b/usr.sbin/timed/timed/acksend.c
index fde1404c082a..8492f9e8d710 100644
--- a/usr.sbin/timed/timed/acksend.c
+++ b/usr.sbin/timed/timed/acksend.c
@@ -42,10 +42,7 @@ struct tsp *answer;
 extern u_short sequence;
 
 void
-xmit(type, seq, addr)
-	int type;
-	u_int seq;
-	struct sockaddr_in *addr;
+xmit(int type, u_int seq, struct sockaddr_in *addr)
 {
 	static struct tsp msg;
 
@@ -68,15 +65,15 @@ xmit(type, seq, addr)
  *
  * Because this function calls readmsg(), none of its args may be in
  *	a message provided by readmsg().
+ * message		this message
+ * addr			to here
+ * ack			look for this ack
+ * net			receive from this network
+ * bad			1=losing patience
  */
 struct tsp *
-acksend(message, addr, name, ack, net, bad)
-	struct tsp *message;			/* this message */
-	struct sockaddr_in *addr;		/* to here */
-	char *name;
-	int ack;				/* look for this ack */
-	struct netinfo *net;			/* receive from this network */
-	int bad;				/* 1=losing patience */
+acksend(struct tsp *message, struct sockaddr_in *addr, char *name,
+	int ack, struct netinfo *net, int bad)
 {
 	struct timeval twait;
 	int count;
diff --git a/usr.sbin/timed/timed/byteorder.c b/usr.sbin/timed/timed/byteorder.c
index a9fd15196b9c..abacbd6805fc 100644
--- a/usr.sbin/timed/timed/byteorder.c
+++ b/usr.sbin/timed/timed/byteorder.c
@@ -42,8 +42,7 @@ static const char rcsid[] =
  * messages. Protocol is defined in /usr/include/protocols/timed.h
  */
 void
-bytenetorder(ptr)
-	struct tsp *ptr;
+bytenetorder(struct tsp *ptr)
 {
 	ptr->tsp_seq = htons((u_short)ptr->tsp_seq);
 	switch (ptr->tsp_type) {
@@ -62,8 +61,7 @@ bytenetorder(ptr)
 }
 
 void
-bytehostorder(ptr)
-	struct tsp *ptr;
+bytehostorder(struct tsp *ptr)
 {
 	ptr->tsp_seq = ntohs((u_short)ptr->tsp_seq);
 	switch (ptr->tsp_type) {
diff --git a/usr.sbin/timed/timed/candidate.c b/usr.sbin/timed/timed/candidate.c
index 7eae18e76c60..c92ae70a7515 100644
--- a/usr.sbin/timed/timed/candidate.c
+++ b/usr.sbin/timed/timed/candidate.c
@@ -44,8 +44,7 @@ static const char rcsid[] =
  * candidate sends an election request, the candidature is withdrawn.
  */
 int
-election(net)
-	struct netinfo *net;
+election(struct netinfo *net)
 {
 	struct tsp *resp, msg;
 	struct timeval then, wait;
diff --git a/usr.sbin/timed/timed/cksum.c b/usr.sbin/timed/timed/cksum.c
index 243ea384906b..7fa0a5e80d8d 100644
--- a/usr.sbin/timed/timed/cksum.c
+++ b/usr.sbin/timed/timed/cksum.c
@@ -49,9 +49,7 @@ static const char rcsid[] =
  * worry about carries except at the end.
  */
 int
-in_cksum(addr, len)
-	u_short *addr;
-	int len;
+in_cksum(u_short *addr, int len)
 {
 	register int nleft = len;
 	register u_short *w = addr;
diff --git a/usr.sbin/timed/timed/correct.c b/usr.sbin/timed/timed/correct.c
index 0eab083c2ef9..8a5b464595c2 100644
--- a/usr.sbin/timed/timed/correct.c
+++ b/usr.sbin/timed/timed/correct.c
@@ -47,8 +47,7 @@ static void adjclock(struct timeval *);
  * own
  */
 void
-correct(avdelta)
-	long avdelta;
+correct(long avdelta)
 {
 	struct hosttbl *htp;
 	int corr;
@@ -112,8 +111,7 @@ correct(avdelta)
 
 
 static void
-adjclock(corr)
-	struct timeval *corr;
+adjclock(struct timeval *corr)
 {
 	static int passes = 0;
 	static int smoother = 0;
@@ -176,9 +174,7 @@ adjclock(corr)
  *	spent in the queue
  */
 void
-adj_msg_time(msg, now)
-	struct tsp *msg;
-	struct timeval *now;
+adj_msg_time(struct tsp *msg, struct timeval *now)
 {
 	msg->tsp_time.tv_sec += (now->tv_sec - from_when.tv_sec);
 	msg->tsp_time.tv_usec += (now->tv_usec - from_when.tv_usec);
diff --git a/usr.sbin/timed/timed/master.c b/usr.sbin/timed/timed/master.c
index b64259bcfdb5..9a130bfb6993 100644
--- a/usr.sbin/timed/timed/master.c
+++ b/usr.sbin/timed/timed/master.c
@@ -63,7 +63,7 @@ static void mchgdate(struct tsp *);
  * takes the appropriate action.
  */
 int
-master()
+master(void)
 {
 	struct hosttbl *htp;
 	long pollingtime;
@@ -339,8 +339,7 @@ master()
  * change the system date on the master
  */
 static void
-mchgdate(msg)
-	struct tsp *msg;
+mchgdate(struct tsp *msg)
 {
 	char tname[MAXHOSTNAMELEN];
 	char olddate[32];
@@ -386,8 +385,7 @@ mchgdate(msg)
  * synchronize all of the slaves
  */
 void
-synch(mydelta)
-	long mydelta;
+synch(long mydelta)
 {
 	struct hosttbl *htp;
 	int measure_status;
@@ -460,7 +458,7 @@ synch(mydelta)
  * has received the command to set the network time
  */
 void
-spreadtime()
+spreadtime(void)
 {
 	struct hosttbl *htp;
 	struct tsp to;
@@ -499,8 +497,7 @@ spreadtime()
 }
 
 void
-prthp(delta)
-	clock_t delta;
+prthp(clock_t delta)
 {
 	static time_t next_time;
 	time_t this_time;
@@ -538,8 +535,7 @@ static struct hosttbl *lasthfree = &hosttbl[0];
 
 
 struct hosttbl *			/* answer or 0 */
-findhost(name)
-	char *name;
+findhost(char *name)
 {
 	int i, j;
 	struct hosttbl *htp;
@@ -565,10 +561,7 @@ findhost(name)
  * add a host to the list of controlled machines if not already there
  */
 struct hosttbl *
-addmach(name, addr, ntp)
-	char *name;
-	struct sockaddr_in *addr;
-	struct netinfo *ntp;
+addmach(char *name, struct sockaddr_in *addr, struct netinfo *ntp)
 {
 	struct hosttbl *ret, *p, *b, *f;
 
@@ -654,8 +647,7 @@ addmach(name, addr, ntp)
  * remove the machine with the given index in the host table.
  */
 struct hosttbl *
-remmach(htp)
-	struct hosttbl *htp;
+remmach(struct hosttbl *htp)
 {
 	struct hosttbl *lprv, *hnxt, *f, *b;
 
@@ -706,8 +698,7 @@ remmach(htp)
  * given network.
  */
 void
-rmnetmachs(ntp)
-	struct netinfo *ntp;
+rmnetmachs(struct netinfo *ntp)
 {
 	struct hosttbl *htp;
 
@@ -722,8 +713,7 @@ rmnetmachs(ntp)
 }
 
 void
-masterup(net)
-	struct netinfo *net;
+masterup(struct netinfo *net)
 {
 	xmit(TSP_MASTERUP, 0, &net->dest_addr);
 
@@ -736,8 +726,7 @@ masterup(net)
 }
 
 void
-newslave(msg)
-	struct tsp *msg;
+newslave(struct tsp *msg)
 {
 	struct hosttbl *htp;
 	struct tsp *answer, to;
@@ -782,8 +771,7 @@ newslave(msg)
  * react to a TSP_QUIT:
  */
 void
-doquit(msg)
-	struct tsp *msg;
+doquit(struct tsp *msg)
 {
 	if (fromnet->status == MASTER) {
 		if (!good_host_name(msg->tsp_name)) {
@@ -814,7 +802,7 @@ doquit(msg)
 }
 
 void
-traceon()
+traceon(void)
 {
 	if (!fd) {
 		fd = fopen(_PATH_TIMEDLOG, "w");
@@ -832,8 +820,7 @@ traceon()
 
 
 void
-traceoff(msg)
-	char *msg;
+traceoff(char *msg)
 {
 	get_goodgroup(1);
 	setstatus();
diff --git a/usr.sbin/timed/timed/measure.c b/usr.sbin/timed/timed/measure.c
index 81ab7c4cad9c..8fe43b5e3911 100644
--- a/usr.sbin/timed/timed/measure.c
+++ b/usr.sbin/timed/timed/measure.c
@@ -56,14 +56,12 @@ static n_short seqno = 0;
 /*
  * Measures the differences between machines' clocks using
  * ICMP timestamp messages.
+ * maxmsec	wait this many msec at most
+ * wmsec	msec to wait for an answer
+ * print	print complaints on stderr
  */
 int					/* status val defined in globals.h */
-measure(maxmsec, wmsec, hname, addr, print)
-	u_long maxmsec;			/* wait this many msec at most */
-	u_long wmsec;			/* msec to wait for an answer */
-	char *hname;
-	struct sockaddr_in *addr;
-	int print;			/* print complaints on stderr */
+measure(u_long maxmsec, u_long wmsec, char *hname, struct sockaddr_in *addr, int print)
 {
 	int length;
 	int measure_status;
@@ -292,9 +290,7 @@ measure(maxmsec, wmsec, hname, addr, print)
  * round a number of milliseconds into a struct timeval
  */
 void
-mstotvround(res, x)
-	struct timeval *res;
-	long x;
+mstotvround(struct timeval *res, long x)
 {
 	if (x < 0)
 		x = -((-x + 3)/5);
@@ -310,8 +306,7 @@ mstotvround(res, x)
 }
 
 void
-timevaladd(tv1, tv2)
-	struct timeval *tv1, *tv2;
+timevaladd(struct timeval *tv1, struct timeval *tv2)
 {
 	tv1->tv_sec += tv2->tv_sec;
 	tv1->tv_usec += tv2->tv_usec;
@@ -326,8 +321,7 @@ timevaladd(tv1, tv2)
 }
 
 void
-timevalsub(res, tv1, tv2)
-	struct timeval *res, *tv1, *tv2;
+timevalsub(struct timeval *res, struct timeval *tv1, struct timeval *tv2)
 {
 	res->tv_sec = tv1->tv_sec - tv2->tv_sec;
 	res->tv_usec = tv1->tv_usec - tv2->tv_usec;
diff --git a/usr.sbin/timed/timed/networkdelta.c b/usr.sbin/timed/timed/networkdelta.c
index e9a437aec6a3..bf2a35389d5f 100644
--- a/usr.sbin/timed/timed/networkdelta.c
+++ b/usr.sbin/timed/timed/networkdelta.c
@@ -62,7 +62,7 @@ static long median(float, float *, long *, long *, unsigned int);
  *	bad values.
  */
 long
-networkdelta()
+networkdelta(void)
 {
 	struct hosttbl *htp;
 	long med;
diff --git a/usr.sbin/timed/timed/readmsg.c b/usr.sbin/timed/timed/readmsg.c
index aca2dbe6403f..8168612aa3d3 100644
--- a/usr.sbin/timed/timed/readmsg.c
+++ b/usr.sbin/timed/timed/readmsg.c
@@ -69,11 +69,7 @@ struct timeval from_when;
  */
 
 struct tsp *
-readmsg(type, machfrom, intvl, netfrom)
-	int type;
-	char *machfrom;
-	struct timeval *intvl;
-	struct netinfo *netfrom;
+readmsg(int type, char *machfrom, struct timeval *intvl, struct netinfo *netfrom)
 {
 	int length;
 	fd_set ready;
@@ -342,7 +338,7 @@ readmsg(type, machfrom, intvl, netfrom)
  * only the type ACK is to be sent by a slave
  */
 void
-slaveack()
+slaveack(void)
 {
 	switch(msgin.tsp_type) {
 
@@ -374,7 +370,7 @@ slaveack()
  * These packets should be acknowledged.
  */
 void
-ignoreack()
+ignoreack(void)
 {
 	switch(msgin.tsp_type) {
 
@@ -402,7 +398,7 @@ ignoreack()
  * to the messages received by a master
  */
 void
-masterack()
+masterack(void)
 {
 	struct tsp resp;
 
@@ -445,9 +441,7 @@ masterack()
  * Print a TSP message
  */
 void
-print(msg, addr)
-	struct tsp *msg;
-	struct sockaddr_in *addr;
+print(struct tsp *msg, struct sockaddr_in *addr)
 {
 	char tm[26];
 	time_t tsp_time_sec;
diff --git a/usr.sbin/timed/timed/slave.c b/usr.sbin/timed/timed/slave.c
index 26e34f79f2a0..15c0c4306dcd 100644
--- a/usr.sbin/timed/timed/slave.c
+++ b/usr.sbin/timed/timed/slave.c
@@ -55,7 +55,7 @@ static void setmaster(struct tsp *);
 static void answerdelay(void);
 
 int
-slave()
+slave(void)
 {
 	int tries;
 	long electiontime, refusetime, looktime, looptime, adjtime;
@@ -610,8 +610,7 @@ slave()
  * tell the world who our master is
  */
 static void
-setmaster(msg)
-	struct tsp *msg;
+setmaster(struct tsp *msg)
 {
 	if (slavenet
 	    && (slavenet != old_slavenet
@@ -640,9 +639,7 @@ setmaster(msg)
  * handle date change request on a slave
  */
 static void
-schgdate(msg, newdate)
-	struct tsp *msg;
-	char *newdate;
+schgdate(struct tsp *msg, char *newdate)
 {
 	struct tsp to;
 	u_short seq;
@@ -680,7 +677,7 @@ schgdate(msg, newdate)
  * contention and likely collisions.
  */
 static void
-answerdelay()
+answerdelay(void)
 {
 	struct timeval timeout;
 
diff --git a/usr.sbin/timed/timed/timed.c b/usr.sbin/timed/timed/timed.c
index 4b0030c17bcb..e17891218c05 100644
--- a/usr.sbin/timed/timed/timed.c
+++ b/usr.sbin/timed/timed/timed.c
@@ -110,9 +110,7 @@ static void usage(void);
  * overhauled at Silicon Graphics
  */
 int
-main(argc, argv)
-	int argc;
-	char *argv[];
+main(int argc, char *argv[])
 {
 	int on;
 	int ret;
@@ -434,7 +432,7 @@ main(argc, argv)
 }
 
 static void
-usage()
+usage(void)
 {
 #ifdef HAVENIS
 	fprintf(stderr, 
@@ -450,10 +448,7 @@ usage()
  * suppress an upstart, untrustworthy, self-appointed master
  */
 void
-suppress(addr, name,net)
-	struct sockaddr_in *addr;
-	char *name;
-	struct netinfo *net;
+suppress(struct sockaddr_in *addr, char *name, struct netinfo *net)
 {
 	struct sockaddr_in tgt;
 	char tname[MAXHOSTNAMELEN];
@@ -478,8 +473,7 @@ suppress(addr, name,net)
 }
 
 void
-lookformaster(ntp)
-	struct netinfo *ntp;
+lookformaster(struct netinfo *ntp)
 {
 	struct tsp resp, conflict, *answer;
 	struct timeval ntime;
@@ -578,7 +572,7 @@ lookformaster(ntp)
  * networks;
  */
 void
-setstatus()
+setstatus(void)
 {
 	struct netinfo *ntp;
 
@@ -631,8 +625,7 @@ setstatus()
 }
 
 void
-makeslave(net)
-	struct netinfo *net;
+makeslave(struct netinfo *net)
 {
 	register struct netinfo *ntp;
 
@@ -647,7 +640,7 @@ makeslave(net)
  * Try to become master over ignored nets..
  */
 static void
-checkignorednets()
+checkignorednets(void)
 {
 	register struct netinfo *ntp;
 
@@ -669,8 +662,7 @@ checkignorednets()
  *	Take a hint about for a good network.
  */
 static void
-pickslavenet(ntp)
-	struct netinfo *ntp;
+pickslavenet(struct netinfo *ntp)
 {
 	if (slavenet != 0 && slavenet->status == SLAVE) {
 		makeslave(slavenet);		/* prune extras */
@@ -690,8 +682,7 @@ pickslavenet(ntp)
  * returns a random number in the range [inf, sup]
  */
 long
-casual(inf, sup)
-	long inf, sup;
+casual(long inf, long sup)
 {
 	double value;
 
@@ -700,7 +691,7 @@ casual(inf, sup)
 }
 
 char *
-date()
+date(void)
 {
 	time_t	tv_sec;
 
@@ -709,8 +700,7 @@ date()
 }
 
 void
-addnetname(name)
-	char *name;
+addnetname(char *name)
 {
 	register struct nets **netlist = &nets;
 
@@ -723,11 +713,11 @@ addnetname(name)
 	(*netlist)->name = name;
 }
 
-/* note a host as trustworthy */
+/* note a host as trustworthy
+ * perm		1=not part of the netgroup
+ */
 static void
-add_good_host(name, perm)
-	char *name;
-	int perm;			/* 1=not part of the netgroup */
+add_good_host(char *name, int perm)
 {
 	register struct goodhost *ghp;
 	register struct hostent *hentp;
@@ -753,8 +743,7 @@ add_good_host(name, perm)
 /* update our image of the net-group of trustworthy hosts
  */
 void
-get_goodgroup(force)
-	int force;
+get_goodgroup(int force)
 {
 # define NG_DELAY (30*60*CLK_TCK)	/* 30 minutes */
 	static unsigned long last_update = -NG_DELAY;
@@ -822,8 +811,7 @@ get_goodgroup(force)
 /* see if a machine is trustworthy
  */
 int					/* 1=trust hp to change our date */
-good_host_name(name)
-	char *name;
+good_host_name(char *name)
 {
 	register struct goodhost *ghp = goodhosts;
 	register char c;
diff --git a/usr.sbin/timed/timedc/cmds.c b/usr.sbin/timed/timedc/cmds.c
index 84740f6c45e8..e39bf03530cc 100644
--- a/usr.sbin/timed/timedc/cmds.c
+++ b/usr.sbin/timed/timedc/cmds.c
@@ -32,7 +32,6 @@
 static char sccsid[] = "@(#)cmds.c	8.1 (Berkeley) 6/6/93";
 #endif /* not lint */
 #endif
-
 #include <sys/cdefs.h>
 __FBSDID("$FreeBSD$");
 
@@ -78,8 +77,7 @@ void bytehostorder(struct tsp *);
 /* compute the difference between our date and another machine
  */
 static int				/* difference in days from our time */
-daydiff(hostname)
-	char *hostname;
+daydiff(char *hostname)
 {
 	int i;
 	int trials;
@@ -164,9 +162,7 @@ daydiff(hostname)
  * measurement.
  */
 void
-clockdiff(argc, argv)
-	int argc;
-	char *argv[];
+clockdiff(int argc, char *argv[])
 {
 	int measure_status;
 	extern int measure(u_long, u_long, char *, struct sockaddr_in*, int);
@@ -263,9 +259,7 @@ clockdiff(argc, argv)
  * finds location of master timedaemon
  */
 void
-msite(argc, argv)
-	int argc;
-	char *argv[];
+msite(int argc, char *argv[])
 {
 	ssize_t cc;
 	fd_set ready;
@@ -360,7 +354,7 @@ msite(argc, argv)
  * quits timedc
  */
 void
-quit()
+quit(void)
 {
 	exit(0);
 }
@@ -372,9 +366,7 @@ quit()
  * reliability of communication channel.
  */
 void
-testing(argc, argv)
-	int argc;
-	char *argv[];
+testing(int argc, char *argv[])
 {
 	struct servent *srvp;
 	struct sockaddr_in sin;
@@ -422,9 +414,7 @@ testing(argc, argv)
  * Enables or disables tracing on local timedaemon
  */
 void
-tracing(argc, argv)
-	int argc;
-	char *argv[];
+tracing(int argc, char *argv[])
 {
 	int onflag;
 	int length;
@@ -513,7 +503,7 @@ tracing(argc, argv)
 }
 
 int
-priv_resources()
+priv_resources(void)
 {
 	int port;
 	struct sockaddr_in sin;
diff --git a/usr.sbin/timed/timedc/timedc.c b/usr.sbin/timed/timedc/timedc.c
index 7047f57ec46a..f81da89e2e16 100644
--- a/usr.sbin/timed/timedc/timedc.c
+++ b/usr.sbin/timed/timedc/timedc.c
@@ -62,9 +62,7 @@ jmp_buf	toplevel;
 static struct cmd *getcmd(char *);
 
 int
-main(argc, argv)
-	int argc;
-	char *argv[];
+main(int argc, char *argv[])
 {
 	register struct cmd *c;
 
@@ -131,8 +129,7 @@ main(argc, argv)
 }
 
 void
-intr(signo)
-	int signo;
+intr(int signo __unused)
 {
 	if (!fromatty)
 		exit(0);
@@ -141,8 +138,7 @@ intr(signo)
 
 
 static struct cmd *
-getcmd(name)
-	char *name;
+getcmd(char *name)
 {
 	register char *p, *q;
 	register struct cmd *c, *found;
@@ -175,7 +171,7 @@ getcmd(name)
  * Slice a string up into argc/argv.
  */
 void
-makeargv()
+makeargv(void)
 {
 	register char *cp;
 	register char **argp = margv;
@@ -203,9 +199,7 @@ makeargv()
  * Help command.
  */
 void
-help(argc, argv)
-	int argc;
-	char *argv[];
+help(int argc, char *argv[])
 {
 	register struct cmd *c;