xref: /titanic_50/usr/src/cmd/sgs/tsort/common/errusage.c (revision d6555420322a42c16b93414c29a62f8e841abc7b)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License, Version 1.0 only
6  * (the "License").  You may not use this file except in compliance
7  * with the License.
8  *
9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10  * or http://www.opensolaris.org/os/licensing.
11  * See the License for the specific language governing permissions
12  * and limitations under the License.
13  *
14  * When distributing Covered Code, include this CDDL HEADER in each
15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16  * If applicable, add the following below this CDDL HEADER, with the
17  * fields enclosed by brackets "[]" replaced with your own identifying
18  * information: Portions Copyright [yyyy] [name of copyright owner]
19  *
20  * CDDL HEADER END
21  */
22 
23 /*
24  * Copyright 2005 Sun Microsystems, Inc.  All rights reserved.
25  * Use is subject to license terms.
26  */
27 
28 /*	Copyright (c) 1988 AT&T	*/
29 /*	  All Rights Reserved  	*/
30 
31 
32 #pragma ident	"%Z%%M%	%I%	%E% SMI"
33 
34 #include  "errmsg.h"
35 #include  <stdio.h>
36 #include  <stdarg.h>
37 #include  <locale.h>
38 
39 #define	USAGENO  255	/* exit value for usage messages */
40 
41 /*
42  *	This routine prints the standard command usage message.
43  */
44 
45 /* PRINTFLIKE1 */
46 void
errusage(char * format,...)47 errusage(char *format, ...)
48 {
49 	va_list	ap;
50 
51 	(void) fputs(gettext("Usage:  "), stderr);
52 	if (Err.vsource && Err.source) {
53 		(void) fputs(Err.source, stderr);
54 		(void) fputc(' ', stderr);
55 	}
56 	va_start(ap, format);
57 	(void) vfprintf(stderr, format, ap);
58 	va_end(ap);
59 	(void) fputc('\n', stderr);
60 	(void) errexit(USAGENO);
61 	erraction(EEXIT);
62 }
63