10Sstevel@tonic-gate /*
20Sstevel@tonic-gate * CDDL HEADER START
30Sstevel@tonic-gate *
40Sstevel@tonic-gate * The contents of this file are subject to the terms of the
50Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only
60Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance
70Sstevel@tonic-gate * with the License.
80Sstevel@tonic-gate *
90Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
100Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing.
110Sstevel@tonic-gate * See the License for the specific language governing permissions
120Sstevel@tonic-gate * and limitations under the License.
130Sstevel@tonic-gate *
140Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each
150Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
160Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the
170Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying
180Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner]
190Sstevel@tonic-gate *
200Sstevel@tonic-gate * CDDL HEADER END
210Sstevel@tonic-gate */
220Sstevel@tonic-gate /*
230Sstevel@tonic-gate * Copyright 1986 Sun Microsystems, Inc. All rights reserved.
240Sstevel@tonic-gate * Use is subject to license terms.
250Sstevel@tonic-gate */
260Sstevel@tonic-gate
270Sstevel@tonic-gate /*
280Sstevel@tonic-gate * University Copyright- Copyright (c) 1982, 1986, 1988
290Sstevel@tonic-gate * The Regents of the University of California
300Sstevel@tonic-gate * All Rights Reserved
310Sstevel@tonic-gate *
320Sstevel@tonic-gate * University Acknowledgment- Portions of this document are derived from
330Sstevel@tonic-gate * software developed by the University of California, Berkeley, and its
340Sstevel@tonic-gate * contributors.
350Sstevel@tonic-gate */
360Sstevel@tonic-gate
37*722Smuffin #pragma ident "%Z%%M% %I% %E% SMI"
380Sstevel@tonic-gate
390Sstevel@tonic-gate #include <stdio.h>
40*722Smuffin #include <malloc.h>
41*722Smuffin #include <unistd.h>
420Sstevel@tonic-gate
430Sstevel@tonic-gate extern unsigned char (*_smbuf)[_SBFSIZ];
440Sstevel@tonic-gate
450Sstevel@tonic-gate void
setbuffer(FILE * iop,char * buf,int size)46*722Smuffin setbuffer(FILE *iop, char *buf, int size)
470Sstevel@tonic-gate {
48*722Smuffin int fno = fileno(iop); /* file number */
490Sstevel@tonic-gate
500Sstevel@tonic-gate if (iop->_base != NULL && iop->_flag&_IOMYBUF)
510Sstevel@tonic-gate free((char *)iop->_base);
520Sstevel@tonic-gate iop->_flag &= ~(_IOMYBUF|_IONBF|_IOLBF);
530Sstevel@tonic-gate if ((iop->_base = (unsigned char *)buf) == NULL) {
540Sstevel@tonic-gate iop->_flag |= _IONBF; /* file unbuffered except in fastio */
550Sstevel@tonic-gate /* use small buffers reserved for this */
560Sstevel@tonic-gate iop->_base = _smbuf[fno];
570Sstevel@tonic-gate iop->_bufsiz = _SBFSIZ;
580Sstevel@tonic-gate } else {
590Sstevel@tonic-gate /* regular buffered I/O, specified buffer size */
600Sstevel@tonic-gate if (size <= 0)
610Sstevel@tonic-gate return;
620Sstevel@tonic-gate iop->_bufsiz = size;
630Sstevel@tonic-gate }
640Sstevel@tonic-gate iop->_ptr = iop->_base;
650Sstevel@tonic-gate iop->_cnt = 0;
660Sstevel@tonic-gate }
670Sstevel@tonic-gate
680Sstevel@tonic-gate /*
690Sstevel@tonic-gate * set line buffering
700Sstevel@tonic-gate */
71*722Smuffin int
setlinebuf(FILE * iop)72*722Smuffin setlinebuf(FILE *iop)
730Sstevel@tonic-gate {
74*722Smuffin char *buf;
750Sstevel@tonic-gate
760Sstevel@tonic-gate fflush(iop);
77*722Smuffin setbuffer(iop, NULL, 0);
78*722Smuffin buf = (char *)malloc(128);
790Sstevel@tonic-gate if (buf != NULL) {
800Sstevel@tonic-gate setbuffer(iop, buf, 128);
810Sstevel@tonic-gate iop->_flag |= _IOLBF|_IOMYBUF;
820Sstevel@tonic-gate }
83*722Smuffin return (0);
840Sstevel@tonic-gate }
85