usr/src/cmd/sgs/tsort/common/errusage.c

   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
  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 }