usr/src/lib/libbc/libc/stdio/common/getw.c

   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 }