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