Merge Lite2 mods, -Wall cleaning, and show usage if

incorrectly called.

Incorrect usage mod obtained from: NetBSD

2 files changed, 22 insertions, 12 deletions

diff --git a/bin/hostname/hostname.1 b/bin/hostname/hostname.1
index 68548f7..379d9ef 100644
--- a/bin/hostname/hostname.1
+++ b/bin/hostname/hostname.1
@@ -29,10 +29,10 @@
 .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 .\" SUCH DAMAGE.
 .\"
-.\"	@(#)hostname.1	8.1 (Berkeley) 5/31/93
-.\"	$Id: hostname.1,v 1.2 1994/09/24 02:55:40 davidg Exp $
+.\"	@(#)hostname.1	8.2 (Berkeley) 4/28/95
+.\"	$Id: hostname.1,v 1.3 1996/02/11 22:33:13 mpp Exp $
 .\"
-.Dd May 31, 1993
+.Dd April 28, 1995
 .Dt HOSTNAME 1
 .Os BSD 4.2
 .Sh NAME
@@ -41,9 +41,9 @@
 .Sh SYNOPSIS
 .Nm hostname
 .Op Fl s
-.Op Ar nameofhost
+.Op Ar name-of-host
 .Sh DESCRIPTION
-.Nm Hostname
+.Nm
 prints the name of the current host.  The super-user can
 set the hostname by supplying an argument; this is usually done in the
 network initialization script
diff --git a/bin/hostname/hostname.c b/bin/hostname/hostname.c
index 00408ec..50ad17e 100644
--- a/bin/hostname/hostname.c
+++ b/bin/hostname/hostname.c
@@ -30,17 +30,17 @@
  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
  *
- *	$Id$
+ *	$Id: hostname.c,v 1.2 1994/09/24 02:55:40 davidg Exp $
  */
 
 #ifndef lint
-static char copyright[] =
+static char const copyright[] =
 "@(#) Copyright (c) 1988, 1993\n\
 	The Regents of the University of California.  All rights reserved.\n";
 #endif /* not lint */
 
 #ifndef lint
-static char sccsid[] = "@(#)hostname.c	8.1 (Berkeley) 5/31/93";
+static char const sccsid[] = "@(#)hostname.c	8.1 (Berkeley) 5/31/93";
 #endif /* not lint */
 
 #include <sys/param.h>
@@ -51,12 +51,13 @@ static char sccsid[] = "@(#)hostname.c	8.1 (Berkeley) 5/31/93";
 #include <string.h>
 #include <unistd.h>
 
+void usage __P((void));
+
 int
 main(argc,argv)
 	int argc;
 	char *argv[];
 {
-	extern int optind;
 	int ch, sflag;
 	char *p, hostname[MAXHOSTNAMELEN];
 
@@ -68,13 +69,14 @@ main(argc,argv)
 			break;
 		case '?':
 		default:
-			(void)fprintf(stderr,
-			    "usage: hostname [-s] [hostname]\n");
-			exit(1);
+			usage();
 		}
 	argc -= optind;
 	argv += optind;
 
+	if (argc > 1)
+		usage();
+
 	if (*argv) {
 		if (sethostname(*argv, strlen(*argv)))
 			err(1, "sethostname");
@@ -87,3 +89,11 @@ main(argc,argv)
 	}
 	exit(0);
 }
+
+void
+usage()
+{
+
+	(void)fprintf(stderr, "usage: hostname [-s] [hostname]\n");
+	exit(1);
+}