diff --git a/libexec/atrun/atrun.c b/libexec/atrun/atrun.c
index a1388cd4e5e3..7780f06d87d4 100644
--- a/libexec/atrun/atrun.c
+++ b/libexec/atrun/atrun.c
@@ -86,7 +86,7 @@ static const char rcsid[] =
 static debug = 0;
 
 void perr(const char *a);
-static void usage __P((void));
+static void usage(void);
 
 /* Local functions */
 static int
@@ -98,7 +98,7 @@ write_string(int fd, const char* a)
 #undef DEBUG_FORK
 #ifdef DEBUG_FORK
 static pid_t
-myfork()
+myfork(void)
 {
 	pid_t res;
 	res = fork();
@@ -491,7 +491,7 @@ main(int argc, char *argv[])
 }
 
 static void
-usage()
+usage(void)
 {
     if (debug)
 	fprintf(stderr, "usage: atrun [-l load_avg] [-d]\n");
diff --git a/libexec/comsat/comsat.c b/libexec/comsat/comsat.c
index a738762595e5..a966002f28af 100644
--- a/libexec/comsat/comsat.c
+++ b/libexec/comsat/comsat.c
@@ -78,19 +78,17 @@ struct	utmp *utmp = NULL;
 time_t	lastmsgtime;
 int	nutmp, uf;
 
-void jkfprintf __P((FILE *, char[], char[], off_t));
-void mailfor __P((char *));
-void notify __P((struct utmp *, char[], off_t, int));
-void onalrm __P((int));
-void reapchildren __P((int));
+void jkfprintf(FILE *, char[], char[], off_t);
+void mailfor(char *);
+void notify(struct utmp *, char[], off_t, int);
+void onalrm(int);
+void reapchildren(int);
 
 int
-main(argc, argv)
-	int argc;
-	char *argv[];
+main(int argc, char *argv[])
 {
 	struct sockaddr_in from;
-	register int cc;
+	int cc;
 	int fromlen;
 	char msgbuf[256];
 
@@ -134,15 +132,13 @@ main(argc, argv)
 }
 
 void
-reapchildren(signo)
-	int signo;
+reapchildren(int signo)
 {
 	while (wait3(NULL, WNOHANG, NULL) > 0);
 }
 
 void
-onalrm(signo)
-	int signo;
+onalrm(int signo)
 {
 	static u_int utmpsize;		/* last malloced size for utmp */
 	static u_int utmpmtime;		/* last modification time for utmp */
@@ -167,11 +163,10 @@ onalrm(signo)
 }
 
 void
-mailfor(name)
-	char *name;
+mailfor(char *name)
 {
-	register struct utmp *utp = &utmp[nutmp];
-	register char *cp;
+	struct utmp *utp = &utmp[nutmp];
+	char *cp;
 	char *file;
 	off_t offset;
 	int folder;
@@ -202,11 +197,7 @@ mailfor(name)
 static char *cr;
 
 void
-notify(utp, file, offset, folder)
-	register struct utmp *utp;
-	char file[];
-	off_t offset;
-	int folder;
+notify(struct utmp *utp, char file[], off_t offset, int folder)
 {
 	FILE *tp;
 	struct stat stb;
@@ -247,16 +238,12 @@ notify(utp, file, offset, folder)
 }
 
 void
-jkfprintf(tp, user, file, offset)
-	register FILE *tp;
-	char user[];
-	char file[];
-	off_t offset;
+jkfprintf(FILE *tp, char user[], char file[], off_t offset)
 {
-	register unsigned char *cp, ch;
-	register FILE *fi;
-	register int linecnt, charcnt, inheader;
-	register struct passwd *p;
+	unsigned char *cp, ch;
+	FILE *fi;
+	int linecnt, charcnt, inheader;
+	struct passwd *p;
 	unsigned char line[BUFSIZ];
 
 	/* Set effective uid to user in case mail drop is on nfs */
diff --git a/libexec/fingerd/fingerd.c b/libexec/fingerd/fingerd.c
index f56432f4e733..440c23696210 100644
--- a/libexec/fingerd/fingerd.c
+++ b/libexec/fingerd/fingerd.c
@@ -62,16 +62,14 @@ static const char rcsid[] =
 #include <strings.h>
 #include "pathnames.h"
 
-void logerr __P((const char *, ...));
+void logerr(const char *, ...);
 
 int
-main(argc, argv)
-	int argc;
-	char *argv[];
+main(int argc, char *argv[])
 {
-	register FILE *fp;
-	register int ch;
-	register char *lp;
+	FILE *fp;
+	int ch;
+	char *lp;
 	struct sockaddr_storage ss;
 	int p[2], logging, secure, sval;
 #define	ENTRIES	50
@@ -199,27 +197,13 @@ main(argc, argv)
 	exit(0);
 }
 
-#if __STDC__
 #include <stdarg.h>
-#else
-#include <varargs.h>
-#endif
 
 void
-#if __STDC__
 logerr(const char *fmt, ...)
-#else
-logerr(fmt, va_alist)
-	char *fmt;
-        va_dcl
-#endif
 {
 	va_list ap;
-#if __STDC__
 	va_start(ap, fmt);
-#else
-	va_start(ap);
-#endif
 	(void)vsyslog(LOG_ERR, fmt, ap);
 	va_end(ap);
 	exit(1);
diff --git a/libexec/ftpd/extern.h b/libexec/ftpd/extern.h
index 3a881db4c3f5..8c15e05e8a1a 100644
--- a/libexec/ftpd/extern.h
+++ b/libexec/ftpd/extern.h
@@ -37,41 +37,41 @@
 #include <sys/types.h>
 #include <sys/socket.h>
 
-void	blkfree __P((char **));
-char  **copyblk __P((char **));
-void	cwd __P((char *));
-void	delete __P((char *));
-void	dologout __P((int));
-void	fatalerror __P((char *));
-void    ftpd_logwtmp __P((char *, char *, struct sockaddr *addr));
-int	ftpd_pclose __P((FILE *));
-FILE   *ftpd_popen __P((char *, char *));
-char   *getline __P((char *, int, FILE *));
-void	lreply __P((int, const char *, ...));
-void	makedir __P((char *));
-void	nack __P((char *));
-void	pass __P((char *));
-void	passive __P((void));
-void	long_passive __P((char *, int));
-void	perror_reply __P((int, char *));
-void	pwd __P((void));
-void	removedir __P((char *));
-void	renamecmd __P((char *, char *));
-char   *renamefrom __P((char *));
-void	reply __P((int, const char *, ...));
-void	retrieve __P((char *, char *));
-void	send_file_list __P((char *));
+void	blkfree(char **);
+char  **copyblk(char **);
+void	cwd(char *);
+void	delete(char *);
+void	dologout(int);
+void	fatalerror(char *);
+void    ftpd_logwtmp(char *, char *, struct sockaddr *addr);
+int	ftpd_pclose(FILE *);
+FILE   *ftpd_popen(char *, char *);
+char   *getline(char *, int, FILE *);
+void	lreply(int, const char *, ...);
+void	makedir(char *);
+void	nack(char *);
+void	pass(char *);
+void	passive(void);
+void	long_passive(char *, int);
+void	perror_reply(int, char *);
+void	pwd(void);
+void	removedir(char *);
+void	renamecmd(char *, char *);
+char   *renamefrom(char *);
+void	reply(int, const char *, ...);
+void	retrieve(char *, char *);
+void	send_file_list(char *);
 #ifdef OLD_SETPROCTITLE
-void	setproctitle __P((const char *, ...));
+void	setproctitle(const char *, ...);
 #endif
-void	statcmd __P((void));
-void	statfilecmd __P((char *));
-void	store __P((char *, char *, int));
-void	upper __P((char *));
-void	user __P((char *));
-void	yyerror __P((char *));
-int	yyparse __P((void));
-int	ls_main __P((int, char **));
+void	statcmd(void);
+void	statfilecmd(char *);
+void	store(char *, char *, int);
+void	upper(char *);
+void	user(char *);
+void	yyerror(char *);
+int	yyparse(void);
+int	ls_main(int, char **);
 
 struct sockaddr_in;
 struct sockaddr_in6;
diff --git a/libexec/ftpd/ftpcmd.y b/libexec/ftpd/ftpcmd.y
index 5928c028c9d3..60287fbf92f8 100644
--- a/libexec/ftpd/ftpcmd.y
+++ b/libexec/ftpd/ftpcmd.y
@@ -1133,21 +1133,19 @@ struct tab sitetab[] = {
 	{ NULL,   0,    0,    0,	0 }
 };
 
-static char	*copy __P((char *));
-static void	 help __P((struct tab *, char *));
+static char	*copy(char *);
+static void	 help(struct tab *, char *);
 static struct tab *
-		 lookup __P((struct tab *, char *));
-static int	 port_check __P((const char *));
-static int	 port_check_v6 __P((const char *));
-static void	 sizecmd __P((char *));
-static void	 toolong __P((int));
-static void	 v4map_data_dest __P((void));
-static int	 yylex __P((void));
+		 lookup(struct tab *, char *);
+static int	 port_check(const char *);
+static int	 port_check_v6(const char *);
+static void	 sizecmd(char *);
+static void	 toolong(int);
+static void	 v4map_data_dest(void);
+static int	 yylex(void);
 
 static struct tab *
-lookup(p, cmd)
-	struct tab *p;
-	char *cmd;
+lookup(struct tab *p, char *cmd)
 {
 
 	for (; p->name != NULL; p++)
@@ -1162,10 +1160,7 @@ lookup(p, cmd)
  * getline - a hacked up version of fgets to ignore TELNET escape codes.
  */
 char *
-getline(s, n, iop)
-	char *s;
-	int n;
-	FILE *iop;
+getline(char *s, int n, FILE *iop)
 {
 	int c;
 	register char *cs;
@@ -1238,8 +1233,7 @@ getline(s, n, iop)
 }
 
 static void
-toolong(signo)
-	int signo;
+toolong(int signo)
 {
 
 	reply(421,
@@ -1251,7 +1245,7 @@ toolong(signo)
 }
 
 static int
-yylex()
+yylex(void)
 {
 	static int cpos;
 	char *cp, *cp2;
@@ -1471,8 +1465,7 @@ yylex()
 }
 
 void
-upper(s)
-	char *s;
+upper(char *s)
 {
 	while (*s != '\0') {
 		if (islower(*s))
@@ -1482,8 +1475,7 @@ upper(s)
 }
 
 static char *
-copy(s)
-	char *s;
+copy(char *s)
 {
 	char *p;
 
@@ -1495,9 +1487,7 @@ copy(s)
 }
 
 static void
-help(ctab, s)
-	struct tab *ctab;
-	char *s;
+help(struct tab *ctab, char *s)
 {
 	struct tab *c;
 	int width, NCMDS;
@@ -1560,8 +1550,7 @@ help(ctab, s)
 }
 
 static void
-sizecmd(filename)
-	char *filename;
+sizecmd(char *filename)
 {
 	switch (type) {
 	case TYPE_L:
@@ -1611,8 +1600,7 @@ sizecmd(filename)
 
 /* Return 1, if port check is done. Return 0, if not yet. */
 static int
-port_check(pcmd)
-	const char *pcmd;
+port_check(const char *pcmd)
 {
 	if (his_addr.su_family == AF_INET) {
 		if (data_dest.su_family != AF_INET) {
@@ -1641,7 +1629,7 @@ port_check(pcmd)
 }
 
 static int
-check_login1()
+check_login1(void)
 {
 	if (logged_in)
 		return 1;
@@ -1654,8 +1642,7 @@ check_login1()
 #ifdef INET6
 /* Return 1, if port check is done. Return 0, if not yet. */
 static int
-port_check_v6(pcmd)
-	const char *pcmd;
+port_check_v6(const char *pcmd)
 {
 	if (his_addr.su_family == AF_INET6) {
 		if (IN6_IS_ADDR_V4MAPPED(&his_addr.su_sin6.sin6_addr))
@@ -1687,7 +1674,7 @@ port_check_v6(pcmd)
 }
 
 static void
-v4map_data_dest()
+v4map_data_dest(void)
 {
 	struct in_addr savedaddr;
 	int savedport;
diff --git a/libexec/ftpd/ftpd.c b/libexec/ftpd/ftpd.c
index ae905c08fc2b..60b1bf984e66 100644
--- a/libexec/ftpd/ftpd.c
+++ b/libexec/ftpd/ftpd.c
@@ -182,7 +182,7 @@ static char ttyline[20];
 char	*tty = ttyline;		/* for klogin */
 
 #ifdef USE_PAM
-static int	auth_pam __P((struct passwd**, const char*));
+static int	auth_pam(struct passwd**, const char*);
 pam_handle_t *pamh = NULL;
 #endif
 
@@ -238,31 +238,31 @@ char	proctitle[LINE_MAX];	/* initial part of title */
 	}
 
 #ifdef VIRTUAL_HOSTING
-static void	 inithosts __P((void));
-static void	selecthost __P((union sockunion *));
+static void	 inithosts(void);
+static void	selecthost(union sockunion *);
 #endif
-static void	 ack __P((char *));
-static void	 sigurg __P((int));
-static void	 myoob __P((void));
-static int	 checkuser __P((char *, char *, int));
-static FILE	*dataconn __P((char *, off_t, char *));
-static void	 dolog __P((struct sockaddr *));
-static char	*curdir __P((void));
-static void	 end_login __P((void));
-static FILE	*getdatasock __P((char *));
-static char	*gunique __P((char *));
-static void	 lostconn __P((int));
-static void	 sigquit __P((int));
-static int	 receive_data __P((FILE *, FILE *));
-static int	 send_data __P((FILE *, FILE *, off_t, off_t, int));
+static void	 ack(char *);
+static void	 sigurg(int);
+static void	 myoob(void);
+static int	 checkuser(char *, char *, int);
+static FILE	*dataconn(char *, off_t, char *);
+static void	 dolog(struct sockaddr *);
+static char	*curdir(void);
+static void	 end_login(void);
+static FILE	*getdatasock(char *);
+static char	*gunique(char *);
+static void	 lostconn(int);
+static void	 sigquit(int);
+static int	 receive_data(FILE *, FILE *);
+static int	 send_data(FILE *, FILE *, off_t, off_t, int);
 static struct passwd *
-		 sgetpwnam __P((char *));
-static char	*sgetsave __P((char *));
-static void	 reapchild __P((int));
-static void      logxfer __P((char *, off_t, time_t));
+		 sgetpwnam(char *);
+static char	*sgetsave(char *);
+static void	 reapchild(int);
+static void      logxfer(char *, off_t, time_t);
 
 static char *
-curdir()
+curdir(void)
 {
 	static char path[MAXPATHLEN+1+1];	/* path + '/' + '\0' */
 
@@ -275,10 +275,7 @@ curdir()
 }
 
 int
-main(argc, argv, envp)
-	int argc;
-	char *argv[];
-	char **envp;
+main(int argc, char *argv[], char **envp)
 {
 	int addrlen, ch, on = 1, tos;
 	char *cp, line[LINE_MAX];
@@ -634,8 +631,7 @@ main(argc, argv, envp)
 }
 
 static void
-lostconn(signo)
-	int signo;
+lostconn(int signo)
 {
 
 	if (ftpdebug)
@@ -644,8 +640,7 @@ lostconn(signo)
 }
 
 static void
-sigquit(signo)
-	int signo;
+sigquit(int signo)
 {
 
 	syslog(LOG_ERR, "got signal %d", signo);
@@ -658,7 +653,7 @@ sigquit(signo)
  */
 
 static void
-inithosts()
+inithosts(void)
 {
 	FILE *fp;
 	char *cp;
@@ -819,8 +814,7 @@ inithosts()
 }
 
 static void
-selecthost(su)
-	union sockunion *su;
+selecthost(union sockunion *su)
 {
 	struct ftphost	*hrp;
 	u_int16_t port;
@@ -872,8 +866,7 @@ selecthost(su)
  * Helper function for sgetpwnam().
  */
 static char *
-sgetsave(s)
-	char *s;
+sgetsave(char *s)
 {
 	char *new = malloc((unsigned) strlen(s) + 1);
 
@@ -892,8 +885,7 @@ sgetsave(s)
  * (e.g., globbing).
  */
 static struct passwd *
-sgetpwnam(name)
-	char *name;
+sgetpwnam(char *name)
 {
 	static struct passwd save;
 	struct passwd *p;
@@ -932,8 +924,7 @@ static char curname[MAXLOGNAME];	/* current USER name */
  * _PATH_FTPUSERS to allow people such as root and uucp to be avoided.
  */
 void
-user(name)
-	char *name;
+user(char *name)
 {
 	char *cp, *shell;
 
@@ -1022,10 +1013,7 @@ user(name)
  * Check if a user is in the file "fname"
  */
 static int
-checkuser(fname, name, pwset)
-	char *fname;
-	char *name;
-	int pwset;
+checkuser(char *fname, char *name, int pwset)
 {
 	FILE *fd;
 	int found = 0;
@@ -1075,7 +1063,7 @@ checkuser(fname, name, pwset)
  * used when USER command is given or login fails.
  */
 static void
-end_login()
+end_login(void)
 {
 #ifdef USE_PAM
 	int e;
@@ -1252,8 +1240,7 @@ auth_pam(struct passwd **ppw, const char *pass)
 #endif /* USE_PAM */
 
 void
-pass(passwd)
-	char *passwd;
+pass(char *passwd)
 {
 	int rval;
 	FILE *fd;
@@ -1480,12 +1467,11 @@ pass(passwd)
 }
 
 void
-retrieve(cmd, name)
-	char *cmd, *name;
+retrieve(char *cmd, char *name)
 {
 	FILE *fin, *dout;
 	struct stat st;
-	int (*closefunc) __P((FILE *));
+	int (*closefunc)(FILE *);
 	time_t start;
 
 	if (cmd == 0) {
@@ -1551,13 +1537,11 @@ retrieve(cmd, name)
 }
 
 void
-store(name, mode, unique)
-	char *name, *mode;
-	int unique;
+store(char *name, char *mode, int unique)
 {
 	FILE *fout, *din;
 	struct stat st;
-	int (*closefunc) __P((FILE *));
+	int (*closefunc)(FILE *);
 
 	if ((unique || guest) && stat(name, &st) == 0 &&
 	    (name = gunique(name)) == NULL) {
@@ -1623,8 +1607,7 @@ store(name, mode, unique)
 }
 
 static FILE *
-getdatasock(mode)
-	char *mode;
+getdatasock(char *mode)
 {
 	int on = 1, s, t, tries;
 
@@ -1686,10 +1669,7 @@ getdatasock(mode)
 }
 
 static FILE *
-dataconn(name, size, mode)
-	char *name;
-	off_t size;
-	char *mode;
+dataconn(char *name, off_t size, char *mode)
 {
 	char sizebuf[32];
 	FILE *file;
@@ -1797,11 +1777,7 @@ dataconn(name, size, mode)
  * NB: Form isn't handled.
  */
 static int
-send_data(instr, outstr, blksize, filesize, isreg)
-	FILE *instr, *outstr;
-	off_t blksize;
-	off_t filesize;
-	int isreg;
+send_data(FILE *instr, FILE *outstr, off_t blksize, off_t filesize, int isreg)
 {
 	int c, filefd, netfd;
 	char *buf;
@@ -1921,8 +1897,7 @@ send_data(instr, outstr, blksize, filesize, isreg)
  * N.B.: Form isn't handled.
  */
 static int
-receive_data(instr, outstr)
-	FILE *instr, *outstr;
+receive_data(FILE *instr, FILE *outstr)
 {
 	int c;
 	int cnt, bare_lfs;
@@ -2012,8 +1987,7 @@ receive_data(instr, outstr)
 }
 
 void
-statfilecmd(filename)
-	char *filename;
+statfilecmd(char *filename)
 {
 	FILE *fin;
 	int c;
@@ -2044,7 +2018,7 @@ statfilecmd(filename)
 }
 
 void
-statcmd()
+statcmd(void)
 {
 	union sockunion *su;
 	u_char *a, *p;
@@ -2170,8 +2144,7 @@ epsvonly:;
 }
 
 void
-fatalerror(s)
-	char *s;
+fatalerror(char *s)
 {
 
 	reply(451, "Error in server: %s\n", s);
@@ -2181,21 +2154,11 @@ fatalerror(s)
 }
 
 void
-#if __STDC__
 reply(int n, const char *fmt, ...)
-#else
-reply(n, fmt, va_alist)
-	int n;
-	char *fmt;
-        va_dcl
-#endif
 {
 	va_list ap;
-#if __STDC__
+
 	va_start(ap, fmt);
-#else
-	va_start(ap);
-#endif
 	(void)printf("%d ", n);
 	(void)vprintf(fmt, ap);
 	(void)printf("\r\n");
@@ -2207,21 +2170,11 @@ reply(n, fmt, va_alist)
 }
 
 void
-#if __STDC__
 lreply(int n, const char *fmt, ...)
-#else
-lreply(n, fmt, va_alist)
-	int n;
-	char *fmt;
-        va_dcl
-#endif
 {
 	va_list ap;
-#if __STDC__
+
 	va_start(ap, fmt);
-#else
-	va_start(ap);
-#endif
 	(void)printf("%d- ", n);
 	(void)vprintf(fmt, ap);
 	(void)printf("\r\n");
@@ -2233,16 +2186,14 @@ lreply(n, fmt, va_alist)
 }
 
 static void
-ack(s)
-	char *s;
+ack(char *s)
 {
 
 	reply(250, "%s command successful.", s);
 }
 
 void
-nack(s)
-	char *s;
+nack(char *s)
 {
 
 	reply(502, "%s command not implemented.", s);
@@ -2250,8 +2201,7 @@ nack(s)
 
 /* ARGSUSED */
 void
-yyerror(s)
-	char *s;
+yyerror(char *s)
 {
 	char *cp;
 
@@ -2261,8 +2211,7 @@ yyerror(s)
 }
 
 void
-delete(name)
-	char *name;
+delete(char *name)
 {
 	struct stat st;
 
@@ -2287,8 +2236,7 @@ delete(name)
 }
 
 void
-cwd(path)
-	char *path;
+cwd(char *path)
 {
 
 	if (chdir(path) < 0)
@@ -2298,8 +2246,7 @@ cwd(path)
 }
 
 void
-makedir(name)
-	char *name;
+makedir(char *name)
 {
 
 	LOGCMD("mkdir", name);
@@ -2310,8 +2257,7 @@ makedir(name)
 }
 
 void
-removedir(name)
-	char *name;
+removedir(char *name)
 {
 
 	LOGCMD("rmdir", name);
@@ -2322,7 +2268,7 @@ removedir(name)
 }
 
 void
-pwd()
+pwd(void)
 {
 	char path[MAXPATHLEN + 1];
 
@@ -2333,8 +2279,7 @@ pwd()
 }
 
 char *
-renamefrom(name)
-	char *name;
+renamefrom(char *name)
 {
 	struct stat st;
 
@@ -2347,8 +2292,7 @@ renamefrom(name)
 }
 
 void
-renamecmd(from, to)
-	char *from, *to;
+renamecmd(char *from, char *to)
 {
 	struct stat st;
 
@@ -2366,8 +2310,7 @@ renamecmd(from, to)
 }
 
 static void
-dolog(who)
-	struct sockaddr *who;
+dolog(struct sockaddr *who)
 {
 	int error;
 
@@ -2410,8 +2353,7 @@ dolog(who)
  * and exit with supplied status.
  */
 void
-dologout(status)
-	int status;
+dologout(int status)
 {
 	/*
 	 * Prevent reception of SIGURG from resulting in a resumption
@@ -2428,15 +2370,14 @@ dologout(status)
 }
 
 static void
-sigurg(signo)
-	int signo;
+sigurg(int signo)
 {
 
 	recvurg = 1;
 }
 
 static void
-myoob()
+myoob(void)
 {
 	char *cp;
 
@@ -2471,7 +2412,7 @@ myoob()
  *	with Rick Adams on 25 Jan 89.
  */
 void
-passive()
+passive(void)
 {
 	int len;
 	char *p, *a;
@@ -2551,9 +2492,7 @@ passive()
  */
 
 void
-long_passive(cmd, pf)
-	char *cmd;
-	int pf;
+long_passive(char *cmd, int pf)
 {
 	int len;
 	char *p, *a;
@@ -2686,8 +2625,7 @@ long_passive(cmd, pf)
  * Generates failure reply on error.
  */
 static char *
-gunique(local)
-	char *local;
+gunique(char *local)
 {
 	static char new[MAXPATHLEN];
 	struct stat st;
@@ -2720,9 +2658,7 @@ gunique(local)
  * Format and send reply containing system error number.
  */
 void
-perror_reply(code, string)
-	int code;
-	char *string;
+perror_reply(int code, char *string)
 {
 
 	reply(code, "%s: %s.", string, strerror(errno));
@@ -2734,8 +2670,7 @@ static char *onefile[] = {
 };
 
 void
-send_file_list(whichf)
-	char *whichf;
+send_file_list(char *whichf)
 {
 	struct stat st;
 	DIR *dirp = NULL;
@@ -2870,8 +2805,7 @@ send_file_list(whichf)
 }
 
 void
-reapchild(signo)
-	int signo;
+reapchild(int signo)
 {
 	while (wait3(NULL, WNOHANG, NULL) > 0);
 }
@@ -2883,24 +2817,14 @@ reapchild(signo)
  * have much of an environment or arglist to overwrite.
  */
 void
-#if __STDC__
 setproctitle(const char *fmt, ...)
-#else
-setproctitle(fmt, va_alist)
-	char *fmt;
-        va_dcl
-#endif
 {
 	int i;
 	va_list ap;
 	char *p, *bp, ch;
 	char buf[LINE_MAX];
 
-#if __STDC__
 	va_start(ap, fmt);
-#else
-	va_start(ap);
-#endif
 	(void)vsnprintf(buf, sizeof(buf), fmt, ap);
 
 	/* make ps print our process name */
@@ -2922,10 +2846,7 @@ setproctitle(fmt, va_alist)
 #endif /* OLD_SETPROCTITLE */
 
 static void
-logxfer(name, size, start)
-	char *name;
-	off_t size;
-	time_t start;
+logxfer(char *name, off_t size, time_t start)
 {
 	char buf[1024];
 	char path[MAXPATHLEN + 1];
diff --git a/libexec/ftpd/popen.c b/libexec/ftpd/popen.c
index 28cecfb418bd..db0425fe3bfc 100644
--- a/libexec/ftpd/popen.c
+++ b/libexec/ftpd/popen.c
@@ -72,8 +72,7 @@ static int *pids;
 static int fds;
 
 FILE *
-ftpd_popen(program, type)
-	char *program, *type;
+ftpd_popen(char *program, char *type)
 {
 	char *cp;
 	FILE *iop;
@@ -177,8 +176,7 @@ pfree:	for (argc = 1; gargv[argc] != NULL; argc++)
 }
 
 int
-ftpd_pclose(iop)
-	FILE *iop;
+ftpd_pclose(FILE *iop)
 {
 	int fdes, omask, status;
 	pid_t pid;