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setbuffer.c revision 1.1.1.2
      1      1.1  cgd /*-
      2  1.1.1.2  jtc  * Copyright (c) 1990, 1993
      3  1.1.1.2  jtc  *	The Regents of the University of California.  All rights reserved.
      4      1.1  cgd  *
      5      1.1  cgd  * This code is derived from software contributed to Berkeley by
      6      1.1  cgd  * Chris Torek.
      7      1.1  cgd  *
      8      1.1  cgd  * Redistribution and use in source and binary forms, with or without
      9      1.1  cgd  * modification, are permitted provided that the following conditions
     10      1.1  cgd  * are met:
     11      1.1  cgd  * 1. Redistributions of source code must retain the above copyright
     12      1.1  cgd  *    notice, this list of conditions and the following disclaimer.
     13      1.1  cgd  * 2. Redistributions in binary form must reproduce the above copyright
     14      1.1  cgd  *    notice, this list of conditions and the following disclaimer in the
     15      1.1  cgd  *    documentation and/or other materials provided with the distribution.
     16      1.1  cgd  * 3. All advertising materials mentioning features or use of this software
     17      1.1  cgd  *    must display the following acknowledgement:
     18      1.1  cgd  *	This product includes software developed by the University of
     19      1.1  cgd  *	California, Berkeley and its contributors.
     20      1.1  cgd  * 4. Neither the name of the University nor the names of its contributors
     21      1.1  cgd  *    may be used to endorse or promote products derived from this software
     22      1.1  cgd  *    without specific prior written permission.
     23      1.1  cgd  *
     24      1.1  cgd  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     25      1.1  cgd  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     26      1.1  cgd  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     27      1.1  cgd  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     28      1.1  cgd  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     29      1.1  cgd  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     30      1.1  cgd  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     31      1.1  cgd  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     32      1.1  cgd  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     33      1.1  cgd  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     34      1.1  cgd  * SUCH DAMAGE.
     35      1.1  cgd  */
     36      1.1  cgd 
     37      1.1  cgd #if defined(LIBC_SCCS) && !defined(lint)
     38  1.1.1.2  jtc static char sccsid[] = "@(#)setbuffer.c	8.1 (Berkeley) 6/4/93";
     39      1.1  cgd #endif /* LIBC_SCCS and not lint */
     40      1.1  cgd 
     41      1.1  cgd #include <stdio.h>
     42      1.1  cgd 
     43      1.1  cgd void
     44      1.1  cgd setbuffer(fp, buf, size)
     45      1.1  cgd 	register FILE *fp;
     46      1.1  cgd 	char *buf;
     47      1.1  cgd 	int size;
     48      1.1  cgd {
     49      1.1  cgd 
     50  1.1.1.2  jtc 	(void)setvbuf(fp, buf, buf ? _IOFBF : _IONBF, size);
     51      1.1  cgd }
     52      1.1  cgd 
     53      1.1  cgd /*
     54      1.1  cgd  * set line buffering
     55      1.1  cgd  */
     56  1.1.1.2  jtc int
     57      1.1  cgd setlinebuf(fp)
     58      1.1  cgd 	FILE *fp;
     59      1.1  cgd {
     60      1.1  cgd 
     61  1.1.1.2  jtc 	return (setvbuf(fp, (char *)NULL, _IOLBF, (size_t)0));
     62      1.1  cgd }
     63