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 /* 230Sstevel@tonic-gate * Copyright 1986 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 30*722Smuffin #pragma ident "%Z%%M% %I% %E% SMI" 310Sstevel@tonic-gate 320Sstevel@tonic-gate 330Sstevel@tonic-gate /*LINTLIBRARY*/ 340Sstevel@tonic-gate #include <stdio.h> 35*722Smuffin #include <unistd.h> 360Sstevel@tonic-gate 37*722Smuffin extern void _findbuf(); 38*722Smuffin extern int fflush(); 390Sstevel@tonic-gate 400Sstevel@tonic-gate int __filbuf(FILE * iop)41*722Smuffin__filbuf(FILE *iop) 420Sstevel@tonic-gate { 430Sstevel@tonic-gate return (_filbuf(iop)); 440Sstevel@tonic-gate } 450Sstevel@tonic-gate 460Sstevel@tonic-gate int _filbuf(FILE * iop)47*722Smuffin_filbuf(FILE *iop) 480Sstevel@tonic-gate { 490Sstevel@tonic-gate 500Sstevel@tonic-gate if ( !(iop->_flag & _IOREAD) ) 510Sstevel@tonic-gate if (iop->_flag & _IORW) 520Sstevel@tonic-gate iop->_flag |= _IOREAD; 530Sstevel@tonic-gate else 540Sstevel@tonic-gate return(EOF); 550Sstevel@tonic-gate 560Sstevel@tonic-gate if (iop->_flag&(_IOSTRG|_IOEOF)) 570Sstevel@tonic-gate return(EOF); 580Sstevel@tonic-gate 590Sstevel@tonic-gate if (iop->_base == NULL) /* get buffer if we don't have one */ 600Sstevel@tonic-gate _findbuf(iop); 610Sstevel@tonic-gate 620Sstevel@tonic-gate if (iop == stdin) { 630Sstevel@tonic-gate if (stdout->_flag&_IOLBF) 640Sstevel@tonic-gate (void) fflush(stdout); 650Sstevel@tonic-gate if (stderr->_flag&_IOLBF) 660Sstevel@tonic-gate (void) fflush(stderr); 670Sstevel@tonic-gate } 680Sstevel@tonic-gate 690Sstevel@tonic-gate iop->_ptr = iop->_base; 700Sstevel@tonic-gate iop->_cnt = read(fileno(iop), (char *)iop->_base, 710Sstevel@tonic-gate (unsigned)((iop->_flag & _IONBF) ? 1 : iop->_bufsiz )); 720Sstevel@tonic-gate if (--iop->_cnt >= 0) /* success */ 730Sstevel@tonic-gate return (*iop->_ptr++); 740Sstevel@tonic-gate if (iop->_cnt != -1) /* error */ 750Sstevel@tonic-gate iop->_flag |= _IOERR; 760Sstevel@tonic-gate else { /* end-of-file */ 770Sstevel@tonic-gate iop->_flag |= _IOEOF; 780Sstevel@tonic-gate if (iop->_flag & _IORW) 790Sstevel@tonic-gate iop->_flag &= ~_IOREAD; 800Sstevel@tonic-gate } 810Sstevel@tonic-gate iop->_cnt = 0; 820Sstevel@tonic-gate return (EOF); 830Sstevel@tonic-gate } 84