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 5*6812Sraf * Common Development and Distribution License (the "License"). 6*6812Sraf * You may not use this file except in compliance with the License. 70Sstevel@tonic-gate * 80Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 90Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 100Sstevel@tonic-gate * See the License for the specific language governing permissions 110Sstevel@tonic-gate * and limitations under the License. 120Sstevel@tonic-gate * 130Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 140Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 150Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 160Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 170Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 180Sstevel@tonic-gate * 190Sstevel@tonic-gate * CDDL HEADER END 200Sstevel@tonic-gate */ 21*6812Sraf 220Sstevel@tonic-gate /* 23*6812Sraf * Copyright 2008 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) 1988 AT&T */ 280Sstevel@tonic-gate /* All Rights Reserved */ 290Sstevel@tonic-gate 30*6812Sraf #pragma ident "%Z%%M% %I% %E% SMI" 310Sstevel@tonic-gate 32*6812Sraf #include "lint.h" 330Sstevel@tonic-gate #include "file64.h" 340Sstevel@tonic-gate #include <stdio.h> 350Sstevel@tonic-gate #include <errno.h> 360Sstevel@tonic-gate #include <sys/types.h> 370Sstevel@tonic-gate #include "stdiom.h" 380Sstevel@tonic-gate 390Sstevel@tonic-gate #undef _wrtchk 400Sstevel@tonic-gate 410Sstevel@tonic-gate /* check permissions, correct for read & write changes */ 420Sstevel@tonic-gate int _wrtchk(FILE * iop)430Sstevel@tonic-gate_wrtchk(FILE *iop) 440Sstevel@tonic-gate { 450Sstevel@tonic-gate if ((iop->_flag & (_IOWRT | _IOEOF)) != _IOWRT) { 460Sstevel@tonic-gate if (!(iop->_flag & (_IOWRT | _IORW))) { 470Sstevel@tonic-gate iop->_flag |= _IOERR; 480Sstevel@tonic-gate errno = EBADF; 490Sstevel@tonic-gate return (EOF); /* stream is not writeable */ 500Sstevel@tonic-gate } 510Sstevel@tonic-gate iop->_flag = (iop->_flag & ~_IOEOF) | _IOWRT; 520Sstevel@tonic-gate } 530Sstevel@tonic-gate 540Sstevel@tonic-gate /* if first I/O to the stream get a buffer */ 550Sstevel@tonic-gate if (iop->_base == NULL && _findbuf(iop) == NULL) 560Sstevel@tonic-gate return (EOF); 570Sstevel@tonic-gate else if ((iop->_ptr == iop->_base) && 580Sstevel@tonic-gate !(iop->_flag & (_IOLBF | _IONBF))) { 590Sstevel@tonic-gate iop->_cnt = _bufend(iop) - iop->_ptr; 600Sstevel@tonic-gate } 610Sstevel@tonic-gate return (0); 620Sstevel@tonic-gate } 63