1*7c478bd9Sstevel@tonic-gate /* 2*7c478bd9Sstevel@tonic-gate * CDDL HEADER START 3*7c478bd9Sstevel@tonic-gate * 4*7c478bd9Sstevel@tonic-gate * The contents of this file are subject to the terms of the 5*7c478bd9Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only 6*7c478bd9Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance 7*7c478bd9Sstevel@tonic-gate * with the License. 8*7c478bd9Sstevel@tonic-gate * 9*7c478bd9Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10*7c478bd9Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 11*7c478bd9Sstevel@tonic-gate * See the License for the specific language governing permissions 12*7c478bd9Sstevel@tonic-gate * and limitations under the License. 13*7c478bd9Sstevel@tonic-gate * 14*7c478bd9Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 15*7c478bd9Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16*7c478bd9Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 17*7c478bd9Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 18*7c478bd9Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 19*7c478bd9Sstevel@tonic-gate * 20*7c478bd9Sstevel@tonic-gate * CDDL HEADER END 21*7c478bd9Sstevel@tonic-gate */ 22*7c478bd9Sstevel@tonic-gate /* 23*7c478bd9Sstevel@tonic-gate * Copyright 2004 Sun Microsystems, Inc. All rights reserved. 24*7c478bd9Sstevel@tonic-gate * Use is subject to license terms. 25*7c478bd9Sstevel@tonic-gate */ 26*7c478bd9Sstevel@tonic-gate 27*7c478bd9Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 28*7c478bd9Sstevel@tonic-gate 29*7c478bd9Sstevel@tonic-gate /* Copyright (c) 1988 AT&T */ 30*7c478bd9Sstevel@tonic-gate /* All Rights Reserved */ 31*7c478bd9Sstevel@tonic-gate 32*7c478bd9Sstevel@tonic-gate 33*7c478bd9Sstevel@tonic-gate /* This function should not be defined weak, but there might be */ 34*7c478bd9Sstevel@tonic-gate /* some program or libraries that may be interposing on this */ 35*7c478bd9Sstevel@tonic-gate #pragma weak fprintf = _fprintf 36*7c478bd9Sstevel@tonic-gate 37*7c478bd9Sstevel@tonic-gate #include "synonyms.h" 38*7c478bd9Sstevel@tonic-gate #include <mtlib.h> 39*7c478bd9Sstevel@tonic-gate #include <thread.h> 40*7c478bd9Sstevel@tonic-gate #include <synch.h> 41*7c478bd9Sstevel@tonic-gate #include <stdarg.h> 42*7c478bd9Sstevel@tonic-gate #include <values.h> 43*7c478bd9Sstevel@tonic-gate #include <errno.h> 44*7c478bd9Sstevel@tonic-gate #include "print.h" 45*7c478bd9Sstevel@tonic-gate #include <sys/types.h> 46*7c478bd9Sstevel@tonic-gate #include "libc.h" 47*7c478bd9Sstevel@tonic-gate #include "mse.h" 48*7c478bd9Sstevel@tonic-gate 49*7c478bd9Sstevel@tonic-gate /*VARARGS2*/ 50*7c478bd9Sstevel@tonic-gate int 51*7c478bd9Sstevel@tonic-gate fprintf(FILE *iop, const char *format, ...) 52*7c478bd9Sstevel@tonic-gate { 53*7c478bd9Sstevel@tonic-gate ssize_t count; 54*7c478bd9Sstevel@tonic-gate rmutex_t *lk; 55*7c478bd9Sstevel@tonic-gate va_list ap; 56*7c478bd9Sstevel@tonic-gate 57*7c478bd9Sstevel@tonic-gate va_start(ap, format); 58*7c478bd9Sstevel@tonic-gate 59*7c478bd9Sstevel@tonic-gate /* Use F*LOCKFILE() macros because fprintf() is not async-safe. */ 60*7c478bd9Sstevel@tonic-gate FLOCKFILE(lk, iop); 61*7c478bd9Sstevel@tonic-gate 62*7c478bd9Sstevel@tonic-gate _SET_ORIENTATION_BYTE(iop); 63*7c478bd9Sstevel@tonic-gate 64*7c478bd9Sstevel@tonic-gate if (!(iop->_flag & _IOWRT)) { 65*7c478bd9Sstevel@tonic-gate /* if no write flag */ 66*7c478bd9Sstevel@tonic-gate if (iop->_flag & _IORW) { 67*7c478bd9Sstevel@tonic-gate /* if ok, cause read-write */ 68*7c478bd9Sstevel@tonic-gate iop->_flag |= _IOWRT; 69*7c478bd9Sstevel@tonic-gate } else { 70*7c478bd9Sstevel@tonic-gate /* else error */ 71*7c478bd9Sstevel@tonic-gate FUNLOCKFILE(lk); 72*7c478bd9Sstevel@tonic-gate errno = EBADF; 73*7c478bd9Sstevel@tonic-gate return (EOF); 74*7c478bd9Sstevel@tonic-gate } 75*7c478bd9Sstevel@tonic-gate } 76*7c478bd9Sstevel@tonic-gate count = _ndoprnt(format, ap, iop, 0); 77*7c478bd9Sstevel@tonic-gate 78*7c478bd9Sstevel@tonic-gate /* return EOF on error or EOF */ 79*7c478bd9Sstevel@tonic-gate if (FERROR(iop) || count == EOF) { 80*7c478bd9Sstevel@tonic-gate FUNLOCKFILE(lk); 81*7c478bd9Sstevel@tonic-gate return (EOF); 82*7c478bd9Sstevel@tonic-gate } 83*7c478bd9Sstevel@tonic-gate 84*7c478bd9Sstevel@tonic-gate FUNLOCKFILE(lk); 85*7c478bd9Sstevel@tonic-gate 86*7c478bd9Sstevel@tonic-gate /* error on overflow */ 87*7c478bd9Sstevel@tonic-gate if ((size_t)count > MAXINT) { 88*7c478bd9Sstevel@tonic-gate errno = EOVERFLOW; 89*7c478bd9Sstevel@tonic-gate return (EOF); 90*7c478bd9Sstevel@tonic-gate } 91*7c478bd9Sstevel@tonic-gate return ((int)count); 92*7c478bd9Sstevel@tonic-gate } 93*7c478bd9Sstevel@tonic-gate 94*7c478bd9Sstevel@tonic-gate #ifndef _LP64 95*7c478bd9Sstevel@tonic-gate 96*7c478bd9Sstevel@tonic-gate /* 97*7c478bd9Sstevel@tonic-gate * 32-bit shadow function of fprintf(). 98*7c478bd9Sstevel@tonic-gate * When using the c89 compiler to build 32-bit applications, the size 99*7c478bd9Sstevel@tonic-gate * of intmax_t is 32-bits, otherwise the size of intmax_t is 64-bits. 100*7c478bd9Sstevel@tonic-gate * The shadow function uses 32-bit size of intmax_t for %j conversion. 101*7c478bd9Sstevel@tonic-gate * The #pragma redefine_extname in <stdio.h> selects the proper routine 102*7c478bd9Sstevel@tonic-gate * at compile time for the user application. 103*7c478bd9Sstevel@tonic-gate * NOTE: this function only exists in the 32-bit library. 104*7c478bd9Sstevel@tonic-gate */ 105*7c478bd9Sstevel@tonic-gate 106*7c478bd9Sstevel@tonic-gate int 107*7c478bd9Sstevel@tonic-gate _fprintf_c89(FILE *iop, const char *format, ...) 108*7c478bd9Sstevel@tonic-gate { 109*7c478bd9Sstevel@tonic-gate ssize_t count; 110*7c478bd9Sstevel@tonic-gate va_list ap; 111*7c478bd9Sstevel@tonic-gate 112*7c478bd9Sstevel@tonic-gate va_start(ap, format); 113*7c478bd9Sstevel@tonic-gate count = _vfprintf_c89(iop, format, ap); 114*7c478bd9Sstevel@tonic-gate va_end(ap); 115*7c478bd9Sstevel@tonic-gate return ((int)count); 116*7c478bd9Sstevel@tonic-gate } 117*7c478bd9Sstevel@tonic-gate 118*7c478bd9Sstevel@tonic-gate #endif /* _LP64 */ 119