rew.c revision 7c478bd95313f5f23a4c958a745db2134aa03244
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (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 (c) 1984 AT&T */
/* All Rights Reserved */
#pragma ident "%Z%%M% %I% %E% SMI" /* from S5R2 1.2 */
/*LINTLIBRARY*/
#include <stdio.h>
extern int fflush();
extern long lseek();
void
rewind(iop)
register FILE *iop;
{
(void) fflush(iop);
(void) lseek(fileno(iop), 0L, 0);
iop->_cnt = 0;
iop->_ptr = iop->_base;
iop->_flag &= ~(_IOERR | _IOEOF);
if(iop->_flag & _IORW)
iop->_flag &= ~(_IOREAD | _IOWRT);
}