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 1986 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 /* Copyright (c) 1984 AT&T */ 28*7c478bd9Sstevel@tonic-gate /* All Rights Reserved */ 29*7c478bd9Sstevel@tonic-gate 30*7c478bd9Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" /* from S5R2 1.2 */ 31*7c478bd9Sstevel@tonic-gate 32*7c478bd9Sstevel@tonic-gate /*LINTLIBRARY*/ 33*7c478bd9Sstevel@tonic-gate /* 34*7c478bd9Sstevel@tonic-gate * Return file offset. 35*7c478bd9Sstevel@tonic-gate * Coordinates with buffering. 36*7c478bd9Sstevel@tonic-gate */ 37*7c478bd9Sstevel@tonic-gate #include <stdio.h> 38*7c478bd9Sstevel@tonic-gate 39*7c478bd9Sstevel@tonic-gate extern long lseek(); 40*7c478bd9Sstevel@tonic-gate 41*7c478bd9Sstevel@tonic-gate long 42*7c478bd9Sstevel@tonic-gate ftell(iop) 43*7c478bd9Sstevel@tonic-gate register FILE *iop; 44*7c478bd9Sstevel@tonic-gate { 45*7c478bd9Sstevel@tonic-gate register long tres; 46*7c478bd9Sstevel@tonic-gate register int adjust; 47*7c478bd9Sstevel@tonic-gate 48*7c478bd9Sstevel@tonic-gate if(iop->_cnt < 0) 49*7c478bd9Sstevel@tonic-gate iop->_cnt = 0; 50*7c478bd9Sstevel@tonic-gate if(iop->_flag & _IOREAD) 51*7c478bd9Sstevel@tonic-gate adjust = - iop->_cnt; 52*7c478bd9Sstevel@tonic-gate else if(iop->_flag & (_IOWRT | _IORW)) { 53*7c478bd9Sstevel@tonic-gate adjust = 0; 54*7c478bd9Sstevel@tonic-gate if(iop->_flag & _IOWRT && iop->_base && 55*7c478bd9Sstevel@tonic-gate (iop->_flag & _IONBF) == 0) 56*7c478bd9Sstevel@tonic-gate adjust = iop->_ptr - iop->_base; 57*7c478bd9Sstevel@tonic-gate } else 58*7c478bd9Sstevel@tonic-gate return(-1); 59*7c478bd9Sstevel@tonic-gate tres = lseek(fileno(iop), 0L, 1); 60*7c478bd9Sstevel@tonic-gate if(tres >= 0) 61*7c478bd9Sstevel@tonic-gate tres += (long)adjust; 62*7c478bd9Sstevel@tonic-gate return(tres); 63*7c478bd9Sstevel@tonic-gate } 64