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 #pragma ident "%Z%%M% %I% %E% SMI"
28
29 /*
30 * Compatibility wrappers for setbuffer and setlinebuf
31 */
32
33 #include "lint.h"
34 #include <sys/types.h>
35 #include <stdio.h>
36 #include <stdlib.h>
37
38 /*
39 * Associate a buffer with an "unused" stream.
40 * If the buffer is NULL, then make the stream completely unbuffered.
41 */
42 void
setbuffer(FILE * iop,char * abuf,size_t asize)43 setbuffer(FILE *iop, char *abuf, size_t asize)
44 {
45 if (abuf == NULL)
46 (void) setvbuf(iop, NULL, _IONBF, 0);
47 else
48 (void) setvbuf(iop, abuf, _IOFBF, asize);
49 }
50
51 /*
52 * Convert a block buffered or line buffered stream to be line buffered
53 * Allowed while the stream is still active; relies on the implementation
54 * not the interface!
55 */
56
57 int
setlinebuf(FILE * iop)58 setlinebuf(FILE *iop)
59 {
60 (void) fflush(iop);
61 (void) setvbuf(iop, NULL, _IOLBF, 128);
62 return (0);
63 }
64