10Sstevel@tonic-gate /*
20Sstevel@tonic-gate * CDDL HEADER START
30Sstevel@tonic-gate *
40Sstevel@tonic-gate * The contents of this file are subject to the terms of the
50Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only
60Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance
70Sstevel@tonic-gate * with the License.
80Sstevel@tonic-gate *
90Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
100Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing.
110Sstevel@tonic-gate * See the License for the specific language governing permissions
120Sstevel@tonic-gate * and limitations under the License.
130Sstevel@tonic-gate *
140Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each
150Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
160Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the
170Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying
180Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner]
190Sstevel@tonic-gate *
200Sstevel@tonic-gate * CDDL HEADER END
210Sstevel@tonic-gate */
220Sstevel@tonic-gate /*
23*722Smuffin * Copyright 2005 Sun Microsystems, Inc. All rights reserved.
240Sstevel@tonic-gate * Use is subject to license terms.
250Sstevel@tonic-gate */
260Sstevel@tonic-gate
270Sstevel@tonic-gate /* Copyright (c) 1984 AT&T */
280Sstevel@tonic-gate /* All Rights Reserved */
290Sstevel@tonic-gate
300Sstevel@tonic-gate /*
310Sstevel@tonic-gate * Portions of this source code were derived from Berkeley 4.3 BSD
320Sstevel@tonic-gate * under license from the Regents of the University of California.
330Sstevel@tonic-gate */
340Sstevel@tonic-gate
350Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI"
360Sstevel@tonic-gate
370Sstevel@tonic-gate /*LINTLIBRARY*/
380Sstevel@tonic-gate #include <stdio.h>
39*722Smuffin #include <stdarg.h>
400Sstevel@tonic-gate
410Sstevel@tonic-gate extern int _doprnt();
420Sstevel@tonic-gate
430Sstevel@tonic-gate int
vprintf(char * format,va_list ap)44*722Smuffin vprintf(char *format, va_list ap)
450Sstevel@tonic-gate {
46*722Smuffin int count;
470Sstevel@tonic-gate
480Sstevel@tonic-gate if (!(stdout->_flag & _IOWRT)) {
490Sstevel@tonic-gate /* if no write flag */
500Sstevel@tonic-gate if (stdout->_flag & _IORW) {
510Sstevel@tonic-gate /* if ok, cause read-write */
520Sstevel@tonic-gate stdout->_flag |= _IOWRT;
530Sstevel@tonic-gate } else {
540Sstevel@tonic-gate /* else error */
55*722Smuffin return (EOF);
560Sstevel@tonic-gate }
570Sstevel@tonic-gate }
580Sstevel@tonic-gate count = _doprnt(format, ap, stdout);
59*722Smuffin return (ferror(stdout)? EOF: count);
600Sstevel@tonic-gate }
61