/* * CDDL HEADER START * * The contents of this file are subject to the terms of the * Common Development and Distribution License (the "License"). * You may not use this file except in compliance with the License. * * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE * or http://www.opensolaris.org/os/licensing. * See the License for the specific language governing permissions * and limitations under the License. * * When distributing Covered Code, include this CDDL HEADER in each * file and include the License file at usr/src/OPENSOLARIS.LICENSE. * If applicable, add the following below this CDDL HEADER, with the * fields enclosed by brackets "[]" replaced with your own identifying * information: Portions Copyright [yyyy] [name of copyright owner] * * CDDL HEADER END */ /* * Copyright 2008 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. */ /* Copyright (c) 1988 AT&T */ /* All Rights Reserved */ #include "lint.h" #include #include #include #include #include #include #include "print.h" #include #include "libc.h" #include "mse.h" /*VARARGS1*/ int printf(const char *format, ...) { ssize_t count; rmutex_t *lk; va_list ap; va_start(ap, format); /* Use F*LOCKFILE() macros because printf() is not async-safe. */ FLOCKFILE(lk, stdout); _SET_ORIENTATION_BYTE(stdout); if (!(stdout->_flag & _IOWRT)) { /* if no write flag */ if (stdout->_flag & _IORW) { /* if ok, cause read-write */ stdout->_flag |= _IOWRT; } else { /* else error */ FUNLOCKFILE(lk); errno = EBADF; return (EOF); } } count = _ndoprnt(format, ap, stdout, 0); va_end(ap); /* check for errors or EOF */ if (FERROR(stdout) || count == EOF) { FUNLOCKFILE(lk); return (EOF); } FUNLOCKFILE(lk); /* check for overflow */ if ((size_t)count > MAXINT) { errno = EOVERFLOW; return (EOF); } else { return ((int)count); } } #ifndef _LP64 /* * 32-bit shadow function of printf(). * When using the c89 compiler to build 32-bit applications, the size * of intmax_t is 32-bits, otherwise the size of intmax_t is 64-bits. * The shadow function uses 32-bit size of intmax_t for %j conversion. * The #pragma redefine_extname in selects the proper routine * at compile time for the user application. * NOTE: this function only exists in the 32-bit library. */ int _printf_c89(const char *format, ...) { ssize_t count; va_list ap; va_start(ap, format); count = _vprintf_c89(format, ap); va_end(ap); return ((int)count); } #endif