xref: /freebsd/lib/libc/stdio/setbuffer.c (revision 5a6307cf42c5b4965435b3b7af74a37fd4dc17b9)
158f0484fSRodney W. Grimes /*-
258f0484fSRodney W. Grimes  * Copyright (c) 1990, 1993
358f0484fSRodney W. Grimes  *	The Regents of the University of California.  All rights reserved.
458f0484fSRodney W. Grimes  *
558f0484fSRodney W. Grimes  * This code is derived from software contributed to Berkeley by
658f0484fSRodney W. Grimes  * Chris Torek.
758f0484fSRodney W. Grimes  *
858f0484fSRodney W. Grimes  * Redistribution and use in source and binary forms, with or without
958f0484fSRodney W. Grimes  * modification, are permitted provided that the following conditions
1058f0484fSRodney W. Grimes  * are met:
1158f0484fSRodney W. Grimes  * 1. Redistributions of source code must retain the above copyright
1258f0484fSRodney W. Grimes  *    notice, this list of conditions and the following disclaimer.
1358f0484fSRodney W. Grimes  * 2. Redistributions in binary form must reproduce the above copyright
1458f0484fSRodney W. Grimes  *    notice, this list of conditions and the following disclaimer in the
1558f0484fSRodney W. Grimes  *    documentation and/or other materials provided with the distribution.
161d8053c5SEd Maste  * 3. Neither the name of the University nor the names of its contributors
1758f0484fSRodney W. Grimes  *    may be used to endorse or promote products derived from this software
1858f0484fSRodney W. Grimes  *    without specific prior written permission.
1958f0484fSRodney W. Grimes  *
2058f0484fSRodney W. Grimes  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
2158f0484fSRodney W. Grimes  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
2258f0484fSRodney W. Grimes  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
2358f0484fSRodney W. Grimes  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
2458f0484fSRodney W. Grimes  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
2558f0484fSRodney W. Grimes  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
2658f0484fSRodney W. Grimes  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
2758f0484fSRodney W. Grimes  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
2858f0484fSRodney W. Grimes  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
2958f0484fSRodney W. Grimes  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
3058f0484fSRodney W. Grimes  * SUCH DAMAGE.
3158f0484fSRodney W. Grimes  */
3258f0484fSRodney W. Grimes 
3358f0484fSRodney W. Grimes #if defined(LIBC_SCCS) && !defined(lint)
3458f0484fSRodney W. Grimes static char sccsid[] = "@(#)setbuffer.c	8.1 (Berkeley) 6/4/93";
3558f0484fSRodney W. Grimes #endif /* LIBC_SCCS and not lint */
36333fc21eSDavid E. O'Brien #include <sys/cdefs.h>
37333fc21eSDavid E. O'Brien __FBSDID("$FreeBSD$");
3858f0484fSRodney W. Grimes 
3958f0484fSRodney W. Grimes #include <stdio.h>
4058f0484fSRodney W. Grimes 
4158f0484fSRodney W. Grimes void
42*5a6307cfSEd Maste setbuffer(FILE *fp, char *buf, int size)
4358f0484fSRodney W. Grimes {
4458f0484fSRodney W. Grimes 
45ce51cf03SJames Raynard 	(void)setvbuf(fp, buf, buf ? _IOFBF : _IONBF, (size_t)size);
4658f0484fSRodney W. Grimes }
4758f0484fSRodney W. Grimes 
4858f0484fSRodney W. Grimes /*
4958f0484fSRodney W. Grimes  * set line buffering
5058f0484fSRodney W. Grimes  */
5158f0484fSRodney W. Grimes int
52*5a6307cfSEd Maste setlinebuf(FILE *fp)
5358f0484fSRodney W. Grimes {
5458f0484fSRodney W. Grimes 
5558f0484fSRodney W. Grimes 	return (setvbuf(fp, (char *)NULL, _IOLBF, (size_t)0));
5658f0484fSRodney W. Grimes }
57