No need to declare optind, optarg or opterr; unistd.h does this for us.

From Jan Stary.  OK deraadt@

13 files changed, 12 insertions, 36 deletions

diff --git a/usr.sbin/amd/amd/get_args.c b/usr.sbin/amd/amd/get_args.c
index 3a7bb68fb47..178ea0e2ac8 100644
--- a/usr.sbin/amd/amd/get_args.c
+++ b/usr.sbin/amd/amd/get_args.c
@@ -32,7 +32,7 @@
  * SUCH DAMAGE.
  *
  *	from: @(#)get_args.c	8.1 (Berkeley) 6/6/93
- *	$Id: get_args.c,v 1.15 2021/10/21 10:55:56 deraadt Exp $
+ *	$Id: get_args.c,v 1.16 2021/11/15 15:14:24 millert Exp $
  */
 
 /*
@@ -44,9 +44,6 @@
 #include <sys/stat.h>
 #include <unistd.h>
 
-extern int optind;
-extern char *optarg;
-
 #if defined(DEBUG) && defined(PARANOID)
 char **gargv;
 #endif /* defined(DEBUG) && defined(PARANOID) */
diff --git a/usr.sbin/amd/amq/amq.c b/usr.sbin/amd/amq/amq.c
index 972d4ef2c0b..57e2c4a5d6a 100644
--- a/usr.sbin/amd/amq/amq.c
+++ b/usr.sbin/amd/amq/amq.c
@@ -32,7 +32,7 @@
  * SUCH DAMAGE.
  *
  *	from: @(#)amq.c	8.1 (Berkeley) 6/7/93
- *	$Id: amq.c,v 1.21 2017/01/21 08:33:51 krw Exp $
+ *	$Id: amq.c,v 1.22 2021/11/15 15:14:24 millert Exp $
  */
 
 /*
@@ -59,9 +59,6 @@ static char *xlog_optstr;
 static char localhost[] = "localhost";
 static char *def_server = localhost;
 
-extern int optind;
-extern char *optarg;
-
 static struct timeval tmo = { 10, 0 };
 #define	TIMEOUT tmo
 
diff --git a/usr.sbin/crunchgen/crunchgen.c b/usr.sbin/crunchgen/crunchgen.c
index e99ad2f177f..4526290197e 100644
--- a/usr.sbin/crunchgen/crunchgen.c
+++ b/usr.sbin/crunchgen/crunchgen.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: crunchgen.c,v 1.24 2021/10/24 21:24:18 deraadt Exp $	 */
+/* $OpenBSD: crunchgen.c,v 1.25 2021/11/15 15:14:24 millert Exp $	 */
 
 /*
  * Copyright (c) 1994 University of Maryland
@@ -117,8 +117,6 @@ main(int argc, char *argv[])
 {
 	char           *p;
 	int             optc;
-	extern int      optind;
-	extern char    *optarg;
 
 	if (pledge("stdio rpath wpath cpath proc exec", NULL) == -1) {
 		perror("pledge");
diff --git a/usr.sbin/mtree/mtree.c b/usr.sbin/mtree/mtree.c
index 3b7e1c0713d..fbfa797750a 100644
--- a/usr.sbin/mtree/mtree.c
+++ b/usr.sbin/mtree/mtree.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: mtree.c,v 1.26 2018/09/16 12:43:40 millert Exp $	*/
+/*	$OpenBSD: mtree.c,v 1.27 2021/11/15 15:14:24 millert Exp $	*/
 /*	$NetBSD: mtree.c,v 1.7 1996/09/05 23:29:22 thorpej Exp $	*/
 
 /*-
@@ -55,8 +55,6 @@ static void usage(void);
 int
 main(int argc, char *argv[])
 {
-	extern int optind;
-	extern char *optarg;
 	int ch;
 	char *dir, *p;
 	int status;
diff --git a/usr.sbin/npppctl/npppctl.c b/usr.sbin/npppctl/npppctl.c
index 82706168073..398304e9080 100644
--- a/usr.sbin/npppctl/npppctl.c
+++ b/usr.sbin/npppctl/npppctl.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: npppctl.c,v 1.9 2019/06/28 13:32:49 deraadt Exp $	*/
+/*	$OpenBSD: npppctl.c,v 1.10 2021/11/15 15:14:24 millert Exp $	*/
 
 /*
  * Copyright (c) 2012 Internet Initiative Japan Inc.
@@ -80,8 +80,6 @@ main(int argc, char *argv[])
 	struct parse_result	*result;
 	struct sockaddr_un	 sun;
 	const char		*npppd_ctlpath = NPPPD_SOCKET;
-	extern int		 optind;
-	extern char		*optarg;
 
 	while ((ch = getopt(argc, argv, "ns:")) != -1)
 		switch (ch) {
diff --git a/usr.sbin/npppd/npppd/npppd.c b/usr.sbin/npppd/npppd/npppd.c
index b9b5831cfcc..b525d55ca98 100644
--- a/usr.sbin/npppd/npppd/npppd.c
+++ b/usr.sbin/npppd/npppd/npppd.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: npppd.c,v 1.51 2021/03/29 03:54:39 yasuoka Exp $ */
+/*	$OpenBSD: npppd.c,v 1.52 2021/11/15 15:14:24 millert Exp $ */
 
 /*-
  * Copyright (c) 2005-2008,2009 Internet Initiative Japan Inc.
@@ -29,7 +29,7 @@
  * Next pppd(nppd). This file provides a npppd daemon process and operations
  * for npppd instance.
  * @author	Yasuoka Masahiko
- * $Id: npppd.c,v 1.51 2021/03/29 03:54:39 yasuoka Exp $
+ * $Id: npppd.c,v 1.52 2021/11/15 15:14:24 millert Exp $
  */
 #include "version.h"
 #include <sys/param.h>	/* ALIGNED_POINTER */
@@ -136,7 +136,6 @@ int
 main(int argc, char *argv[])
 {
 	int            ch, stop_by_error, runasdaemon = 1, nflag = 0;
-	extern char   *optarg;
 	const char    *npppd_conf0 = DEFAULT_NPPPD_CONF;
 	struct passwd *pw;
 
diff --git a/usr.sbin/pstat/pstat.c b/usr.sbin/pstat/pstat.c
index 14a779eb2ae..f618409f2a4 100644
--- a/usr.sbin/pstat/pstat.c
+++ b/usr.sbin/pstat/pstat.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: pstat.c,v 1.126 2021/10/20 06:35:40 semarie Exp $	*/
+/*	$OpenBSD: pstat.c,v 1.127 2021/11/15 15:14:24 millert Exp $	*/
 /*	$NetBSD: pstat.c,v 1.27 1996/10/23 22:50:06 cgd Exp $	*/
 
 /*-
@@ -150,8 +150,6 @@ main(int argc, char *argv[])
 	int fileflag = 0, swapflag = 0, ttyflag = 0, vnodeflag = 0, ch;
 	char buf[_POSIX2_LINE_MAX];
 	const char *dformat = NULL;
-	extern char *optarg;
-	extern int optind;
 	int i;
 
 	hideroot = getuid();
diff --git a/usr.sbin/quotaon/quotaon.c b/usr.sbin/quotaon/quotaon.c
index f70f6f99c53..4d904d2b4d4 100644
--- a/usr.sbin/quotaon/quotaon.c
+++ b/usr.sbin/quotaon/quotaon.c
@@ -66,7 +66,6 @@ main(int argc, char *argv[])
 	char *qfnp, *whoami;
 	long argnum, done = 0;
 	int i, offmode = 0, errs = 0;
-	extern int optind;
 	int ch;
 
 	whoami = strrchr(*argv, '/') + 1;
diff --git a/usr.sbin/rarpd/rarpd.c b/usr.sbin/rarpd/rarpd.c
index 7eff3d39239..fbb0b953eb9 100644
--- a/usr.sbin/rarpd/rarpd.c
+++ b/usr.sbin/rarpd/rarpd.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: rarpd.c,v 1.78 2021/09/06 13:32:18 deraadt Exp $ */
+/*	$OpenBSD: rarpd.c,v 1.79 2021/11/15 15:14:24 millert Exp $ */
 /*	$NetBSD: rarpd.c,v 1.25 1998/04/23 02:48:33 mrg Exp $	*/
 
 /*
@@ -103,7 +103,6 @@ int
 main(int argc, char *argv[])
 {
 	extern char *__progname;
-	extern int optind, opterr;
 	int op;
 
 	/* All error reporting is done through syslogs. */
diff --git a/usr.sbin/rdate/rdate.c b/usr.sbin/rdate/rdate.c
index 5bf7fdd80c9..cff4692d035 100644
--- a/usr.sbin/rdate/rdate.c
+++ b/usr.sbin/rdate/rdate.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: rdate.c,v 1.35 2015/12/23 19:13:52 deraadt Exp $	*/
+/*	$OpenBSD: rdate.c,v 1.36 2021/11/15 15:14:24 millert Exp $	*/
 /*	$NetBSD: rdate.c,v 1.4 1996/03/16 12:37:45 pk Exp $	*/
 
 /*
@@ -82,7 +82,6 @@ main(int argc, char **argv)
 	int             pr = 0, silent = 0, ntp = 1, verbose = 0;
 	int		slidetime = 0, corrleaps = 0;
 	char           *hname;
-	extern int      optind;
 	int             c, p[2], pid;
 	int		family = PF_UNSPEC;
 
diff --git a/usr.sbin/repquota/repquota.c b/usr.sbin/repquota/repquota.c
index f4144821013..9a4cafcfe0e 100644
--- a/usr.sbin/repquota/repquota.c
+++ b/usr.sbin/repquota/repquota.c
@@ -77,8 +77,6 @@ main(int argc, char *argv[])
 	struct group *gr;
 	int gflag = 0, uflag = 0, errs = 0;
 	long i, argnum, done = 0;
-	extern char *optarg;
-	extern int optind;
 	char *qfnp;
 	int ch;
 
diff --git a/usr.sbin/rpc.bootparamd/bootparamd.c b/usr.sbin/rpc.bootparamd/bootparamd.c
index f1c46a9dcbe..c58c4e9b897 100644
--- a/usr.sbin/rpc.bootparamd/bootparamd.c
+++ b/usr.sbin/rpc.bootparamd/bootparamd.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: bootparamd.c,v 1.21 2016/10/16 10:40:58 jca Exp $	*/
+/*	$OpenBSD: bootparamd.c,v 1.22 2021/11/15 15:14:24 millert Exp $	*/
 
 /*
  * This code is not copyright, and is placed in the public domain.
@@ -50,8 +50,6 @@ struct sockaddr_in my_addr;
 extern char *__progname;
 char   *bootpfile = _PATH_BOOTPARAMS;
 
-extern char *optarg;
-extern int optind;
 
 static void
 usage(void)
diff --git a/usr.sbin/syslogc/syslogc.c b/usr.sbin/syslogc/syslogc.c
index eaf4d62d860..b9048bad9a0 100644
--- a/usr.sbin/syslogc/syslogc.c
+++ b/usr.sbin/syslogc/syslogc.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: syslogc.c,v 1.18 2015/10/13 16:30:55 deraadt Exp $ */
+/* $OpenBSD: syslogc.c,v 1.19 2021/11/15 15:14:24 millert Exp $ */
 
 /*
  * Copyright (c) 2004 Damien Miller
@@ -77,8 +77,6 @@ main(int argc, char **argv)
 	struct sockaddr_un ctl;
 	int ctlsock, ch, oflag, rval;
 	FILE *ctlf;
-	extern char *optarg;
-	extern int optind;
 	struct ctl_cmd cc;
 	struct ctl_reply_hdr rr;
 	const char *errstr;