17c478bd9Sstevel@tonic-gate /*
27c478bd9Sstevel@tonic-gate * CDDL HEADER START
37c478bd9Sstevel@tonic-gate *
47c478bd9Sstevel@tonic-gate * The contents of this file are subject to the terms of the
5*7257d1b4Sraf * Common Development and Distribution License (the "License").
6*7257d1b4Sraf * You may not use this file except in compliance with the License.
77c478bd9Sstevel@tonic-gate *
87c478bd9Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
97c478bd9Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing.
107c478bd9Sstevel@tonic-gate * See the License for the specific language governing permissions
117c478bd9Sstevel@tonic-gate * and limitations under the License.
127c478bd9Sstevel@tonic-gate *
137c478bd9Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each
147c478bd9Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
157c478bd9Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the
167c478bd9Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying
177c478bd9Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner]
187c478bd9Sstevel@tonic-gate *
197c478bd9Sstevel@tonic-gate * CDDL HEADER END
207c478bd9Sstevel@tonic-gate */
21*7257d1b4Sraf
227c478bd9Sstevel@tonic-gate /*
23*7257d1b4Sraf * Copyright 2008 Sun Microsystems, Inc. All rights reserved.
247c478bd9Sstevel@tonic-gate * Use is subject to license terms.
257c478bd9Sstevel@tonic-gate */
267c478bd9Sstevel@tonic-gate
277c478bd9Sstevel@tonic-gate /* Copyright (c) 1988 AT&T */
287c478bd9Sstevel@tonic-gate /* All Rights Reserved */
297c478bd9Sstevel@tonic-gate
30*7257d1b4Sraf #include "lint.h"
317c478bd9Sstevel@tonic-gate #include <mtlib.h>
327c478bd9Sstevel@tonic-gate #include <stdarg.h>
337c478bd9Sstevel@tonic-gate #include <errno.h>
347c478bd9Sstevel@tonic-gate #include <thread.h>
357c478bd9Sstevel@tonic-gate #include <synch.h>
367c478bd9Sstevel@tonic-gate #include <values.h>
377c478bd9Sstevel@tonic-gate #include "print.h"
387c478bd9Sstevel@tonic-gate #include <sys/types.h>
397c478bd9Sstevel@tonic-gate #include "libc.h"
407c478bd9Sstevel@tonic-gate #include "mse.h"
417c478bd9Sstevel@tonic-gate
427c478bd9Sstevel@tonic-gate /*VARARGS1*/
437c478bd9Sstevel@tonic-gate int
printf(const char * format,...)447c478bd9Sstevel@tonic-gate printf(const char *format, ...)
457c478bd9Sstevel@tonic-gate {
467c478bd9Sstevel@tonic-gate ssize_t count;
477c478bd9Sstevel@tonic-gate rmutex_t *lk;
487c478bd9Sstevel@tonic-gate va_list ap;
497c478bd9Sstevel@tonic-gate
507c478bd9Sstevel@tonic-gate va_start(ap, format);
517c478bd9Sstevel@tonic-gate
527c478bd9Sstevel@tonic-gate /* Use F*LOCKFILE() macros because printf() is not async-safe. */
537c478bd9Sstevel@tonic-gate FLOCKFILE(lk, stdout);
547c478bd9Sstevel@tonic-gate
557c478bd9Sstevel@tonic-gate _SET_ORIENTATION_BYTE(stdout);
567c478bd9Sstevel@tonic-gate
577c478bd9Sstevel@tonic-gate if (!(stdout->_flag & _IOWRT)) {
587c478bd9Sstevel@tonic-gate /* if no write flag */
597c478bd9Sstevel@tonic-gate if (stdout->_flag & _IORW) {
607c478bd9Sstevel@tonic-gate /* if ok, cause read-write */
617c478bd9Sstevel@tonic-gate stdout->_flag |= _IOWRT;
627c478bd9Sstevel@tonic-gate } else {
637c478bd9Sstevel@tonic-gate /* else error */
647c478bd9Sstevel@tonic-gate FUNLOCKFILE(lk);
657c478bd9Sstevel@tonic-gate errno = EBADF;
667c478bd9Sstevel@tonic-gate return (EOF);
677c478bd9Sstevel@tonic-gate }
687c478bd9Sstevel@tonic-gate }
697c478bd9Sstevel@tonic-gate count = _ndoprnt(format, ap, stdout, 0);
707c478bd9Sstevel@tonic-gate va_end(ap);
717c478bd9Sstevel@tonic-gate
727c478bd9Sstevel@tonic-gate /* check for errors or EOF */
737c478bd9Sstevel@tonic-gate if (FERROR(stdout) || count == EOF) {
747c478bd9Sstevel@tonic-gate FUNLOCKFILE(lk);
757c478bd9Sstevel@tonic-gate return (EOF);
767c478bd9Sstevel@tonic-gate }
777c478bd9Sstevel@tonic-gate
787c478bd9Sstevel@tonic-gate FUNLOCKFILE(lk);
797c478bd9Sstevel@tonic-gate
807c478bd9Sstevel@tonic-gate /* check for overflow */
817c478bd9Sstevel@tonic-gate if ((size_t)count > MAXINT) {
827c478bd9Sstevel@tonic-gate errno = EOVERFLOW;
837c478bd9Sstevel@tonic-gate return (EOF);
847c478bd9Sstevel@tonic-gate } else {
857c478bd9Sstevel@tonic-gate return ((int)count);
867c478bd9Sstevel@tonic-gate }
877c478bd9Sstevel@tonic-gate }
887c478bd9Sstevel@tonic-gate
897c478bd9Sstevel@tonic-gate #ifndef _LP64
907c478bd9Sstevel@tonic-gate
917c478bd9Sstevel@tonic-gate /*
927c478bd9Sstevel@tonic-gate * 32-bit shadow function of printf().
937c478bd9Sstevel@tonic-gate * When using the c89 compiler to build 32-bit applications, the size
947c478bd9Sstevel@tonic-gate * of intmax_t is 32-bits, otherwise the size of intmax_t is 64-bits.
957c478bd9Sstevel@tonic-gate * The shadow function uses 32-bit size of intmax_t for %j conversion.
967c478bd9Sstevel@tonic-gate * The #pragma redefine_extname in <stdio.h> selects the proper routine
977c478bd9Sstevel@tonic-gate * at compile time for the user application.
987c478bd9Sstevel@tonic-gate * NOTE: this function only exists in the 32-bit library.
997c478bd9Sstevel@tonic-gate */
1007c478bd9Sstevel@tonic-gate
1017c478bd9Sstevel@tonic-gate int
_printf_c89(const char * format,...)1027c478bd9Sstevel@tonic-gate _printf_c89(const char *format, ...)
1037c478bd9Sstevel@tonic-gate {
1047c478bd9Sstevel@tonic-gate ssize_t count;
1057c478bd9Sstevel@tonic-gate va_list ap;
1067c478bd9Sstevel@tonic-gate
1077c478bd9Sstevel@tonic-gate va_start(ap, format);
1087c478bd9Sstevel@tonic-gate count = _vprintf_c89(format, ap);
1097c478bd9Sstevel@tonic-gate va_end(ap);
1107c478bd9Sstevel@tonic-gate return ((int)count);
1117c478bd9Sstevel@tonic-gate }
1127c478bd9Sstevel@tonic-gate
1137c478bd9Sstevel@tonic-gate #endif
114