xref: /titanic_41/usr/src/lib/libbc/libc/stdio/common/getw.c (revision dd49f125507979bb2ab505a8daf2a46d1be27051)
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, Version 1.0 only
6  * (the "License").  You may not use this file except in compliance
7  * with the License.
8  *
9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10  * or http://www.opensolaris.org/os/licensing.
11  * See the License for the specific language governing permissions
12  * and limitations under the License.
13  *
14  * When distributing Covered Code, include this CDDL HEADER in each
15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16  * If applicable, add the following below this CDDL HEADER, with the
17  * fields enclosed by brackets "[]" replaced with your own identifying
18  * information: Portions Copyright [yyyy] [name of copyright owner]
19  *
20  * CDDL HEADER END
21  */
22 /*      Copyright (c) 1984 AT&T */
23 /*        All Rights Reserved   */
24 
25 #pragma ident	"%Z%%M%	%I%	%E% SMI"  /* from S5R2 1.3 */
26 
27 /*LINTLIBRARY*/
28 /*
29  * The intent here is to provide a means to make the order of
30  * bytes in an io-stream correspond to the order of the bytes
31  * in the memory while doing the io a `word' at a time.
32  */
33 #include <stdio.h>
34 
35 int
36 getw(stream)
37 register FILE *stream;
38 {
39 	int w;
40 	register char *s = (char *)&w;
41 	register int i = sizeof(int);
42 
43 	while (--i >= 0)
44 		*s++ = getc(stream);
45 	return (feof(stream) || ferror(stream) ? EOF : w);
46 }
47