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

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incorrectly called.

Incorrect usage mod obtained from: NetBSD
This commit is contained in:
Steve Price 1996-12-14 05:59:58 +00:00
parent 8a166df9c3
commit 113b529fc5
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=20415
2 changed files with 22 additions and 12 deletions
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10
bin/hostname/hostname.1
View File

@ -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

24
bin/hostname/hostname.c
View File

@ -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);
}