1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 22 /* 23 * Copyright 2008 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 /* Copyright (c) 1988 AT&T */ 28 /* All Rights Reserved */ 29 30 #include "lint.h" 31 #include "file64.h" 32 #include "mtlib.h" 33 #include <sys/types.h> 34 #include <stdio.h> 35 #include <unistd.h> 36 #include <synch.h> 37 #include <thread.h> 38 #include "stdiom.h" 39 #include "libc.h" 40 41 42 void rewind(FILE * iop)43rewind(FILE *iop) 44 { 45 rmutex_t *lk; 46 47 FLOCKFILE(lk, iop); 48 _rewind_unlocked(iop); 49 FUNLOCKFILE(lk); 50 } 51 52 void _rewind_unlocked(FILE * iop)53_rewind_unlocked(FILE *iop) 54 { 55 (void) _fflush_u(iop); 56 (void) _xseek64(iop, 0, SEEK_SET); 57 iop->_cnt = 0; 58 iop->_ptr = iop->_base; 59 iop->_flag &= ~(_IOERR | _IOEOF); 60 if (iop->_flag & _IORW) 61 iop->_flag &= ~(_IOREAD | _IOWRT); 62 } 63