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 #pragma ident "%Z%%M% %I% %E% SMI" 31 32 /* 33 * The intent here is to provide a means to make the order of 34 * bytes in an io-stream correspond to the order of the bytes 35 * in the memory while doing the io a `word' at a time. 36 */ 37 38 #pragma weak _getw = getw 39 40 #include "lint.h" 41 #include "file64.h" 42 #include "mtlib.h" 43 #include <stdio.h> 44 #include <thread.h> 45 #include <synch.h> 46 #include "stdiom.h" 47 48 /* Read sizeof(int) characters from stream and return these in an int */ 49 int 50 getw(FILE *stream) 51 { 52 int w; 53 char *s = (char *)&w; 54 int i = sizeof (int); 55 int ret; 56 rmutex_t *lk; 57 58 FLOCKFILE(lk, stream); 59 while (--i >= 0 && !(stream->_flag & (_IOERR | _IOEOF))) 60 *s++ = GETC(stream); 61 ret = ((stream->_flag & (_IOERR | _IOEOF)) ? EOF : w); 62 FUNLOCKFILE(lk); 63 return (ret); 64 } 65