From 97c57a650febc37e6d1dd4ec0c0a0d39c8173125 Mon Sep 17 00:00:00 2001
From: charnier <charnier@FreeBSD.org>
Date: Wed, 16 Jul 1997 06:51:12 +0000
Subject: [PATCH] Use err(3). Rewrote man page in mdoc format.

---
 usr.bin/key/key.1  | 59 +++++++++++++++++++++++-----------------------
 usr.bin/key/skey.c | 43 +++++++++++++--------------------
 2 files changed, 46 insertions(+), 56 deletions(-)

diff --git a/usr.bin/key/key.1 b/usr.bin/key/key.1
index 73992337c4c..aaeadd8dfe7 100644
--- a/usr.bin/key/key.1
+++ b/usr.bin/key/key.1
@@ -1,24 +1,26 @@
-.ll 6i
-.pl 10.5i
-.\"	@(#)key.1	1.0 (Bellcore) 12/2/91
+.\"	from: @(#)key.1	1.0 (Bellcore) 12/2/91
+.\" $Id$
 .\"
-.lt 6.0i
-.TH KEY 1 "2 December 1991"
-.AT 3
-.SH NAME
-key \-  Stand\-alone program for computing responses to S/Key challenges.
-.SH SYNOPSIS
-.B key [\-n <count>] <Sequence> <key> 
-.SH DESCRIPTION
-.I key
-Takes the optional count  of the number of one time access 
+.Dd December 2, 1991
+.Dt KEY 1
+.Os
+.Sh NAME
+.Nm key
+.Nd stand\-alone program for computing responses to S/Key challenges
+.Sh SYNOPSIS
+.Nm
+.Op Fl n Ar count
+.Ar sequence
+.Ar key 
+.Sh DESCRIPTION
+.Nm Key
+takes the optional count  of the number of one time access 
 passwords to print
 along with a (maximum) sequence number and key as command line args, 
 it prompts for the user's secret password, and produces both word 
 and hex format responses.
-.SH EXAMPLE
-.sh
-  Usage example:
+.Sh EXAMPLE
+Usage example:
 .sp 0
  	>key \-n 5 99 th91334
 .sp 0
@@ -29,21 +31,18 @@ and hex format responses.
 	.... 4 more passwords.
 .sp 0
  	>
-.LP
-.SH OPTIONS
-.LP
-.B \-n <count>
-the number of one time access passwords to print.
+.Sh OPTIONS
+.Bl -tag -width indent
+.It Fl n Ar count
+The number of one time access passwords to print.
 The default is one.
-.SH DIAGNOSTICS
-.SH BUGS
-.LP
-.SH SEE ALSO
-.BR skey(1),
-.BR keyinit(1),
+.El
+.Sh SEE ALSO
+.Xr keyinfo 1 ,
+.Xr keyinit 1 ,
+.Xr skey 1
 .\" .BR keysu(1),
-.BR keyinfo(1)
-.SH AUTHOR
+.Sh AUTHOR
 Command by Phil Karn, Neil M. Haller, John S. Walden
-.SH CONTACT
+.Sh CONTACT
 staff@thumper.bellcore.com
diff --git a/usr.bin/key/skey.c b/usr.bin/key/skey.c
index 0196ebe62f7..42ef6c5e79f 100644
--- a/usr.bin/key/skey.c
+++ b/usr.bin/key/skey.c
@@ -9,9 +9,12 @@
  *	C848 666B 6435 0A93
  *	>
  */
+
+#include <err.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
+#include <unistd.h>
 
 #ifdef	__MSDOS__
 #include <dos.h>
@@ -21,11 +24,7 @@
 
 #include <skey.h>
 
-char *readpass();
-void usage();
-int getopt();
-extern int optind;
-extern char *optarg;
+static void usage __P((void));
 
 int
 main(argc,argv)
@@ -33,7 +32,7 @@ int argc;
 char *argv[];
 {
 	int n,cnt,i;
-	char passwd[256],passwd2[256];
+	char passwd[256] /* ,passwd2[256] */;
 	char key[8];
 	char *seed;
 	char buf[33];
@@ -50,31 +49,25 @@ char *argv[];
 	/* could be in the form <number>/<seed> */
 	if(argc <= optind + 1){
 		/*look for / in it */
-		if(argc <= optind){
-			usage(argv[0]);
-			return 1;
-		}
+		if(argc <= optind)
+			usage();
 
 		slash = strchr(argv[optind], '/');
-		if(slash == NULL){
-			usage(argv[0]);
-			return 1;
-		}
+		if(slash == NULL)
+			usage();
 		*slash++ = '\0';
 		seed = slash;
 
 		if((n = atoi(argv[optind])) < 0){
 			fprintf(stderr,"%s not positive\n",argv[optind]);
-			usage(argv[0]);
-			return 1;
+			usage();
 		}
 	}
 	else {
 
 		if((n = atoi(argv[optind])) < 0){
 			fprintf(stderr,"%s not positive\n",argv[optind]);
-			usage(argv[0]);
-			return 1;
+			usage();
 		}
 		seed = argv[++optind];
 	}
@@ -95,10 +88,8 @@ char *argv[];
 	}
 
 	/* Crunch seed and password into starting key */
-	if(keycrunch(key,seed,passwd) != 0){
-		fprintf(stderr,"%s: key crunch failed\n",argv[0]);
-		return 1;
-	}
+	if(keycrunch(key,seed,passwd) != 0)
+		errx(1, "key crunch failed");
 	if(cnt == 1){
 		while(n-- != 0)
 			f(key);
@@ -121,9 +112,9 @@ char *argv[];
 	return 0;
 }
 
-void
-usage(s)
-char *s;
+static void
+usage()
 {
-	fprintf(stderr,"Usage: %s [-n count] <sequence #>[/] <key> \n",s);
+	fprintf(stderr,"usage: key [-n count] <sequence #>[/] <key>\n");
+	exit(1);
 }
-- 
2.45.2