diff options
Diffstat (limited to 'usr/src/lib/libbc/libc/stdio/4.2/setbuf.c')
| -rw-r--r-- | usr/src/lib/libbc/libc/stdio/4.2/setbuf.c | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/usr/src/lib/libbc/libc/stdio/4.2/setbuf.c b/usr/src/lib/libbc/libc/stdio/4.2/setbuf.c new file mode 100644 index 0000000000..21e285bac2 --- /dev/null +++ b/usr/src/lib/libbc/libc/stdio/4.2/setbuf.c @@ -0,0 +1,60 @@ +/* + * CDDL HEADER START + * + * The contents of this file are subject to the terms of the + * Common Development and Distribution License, Version 1.0 only + * (the "License"). You may not use this file except in compliance + * with the License. + * + * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE + * or http://www.opensolaris.org/os/licensing. + * See the License for the specific language governing permissions + * and limitations under the License. + * + * When distributing Covered Code, include this CDDL HEADER in each + * file and include the License file at usr/src/OPENSOLARIS.LICENSE. + * If applicable, add the following below this CDDL HEADER, with the + * fields enclosed by brackets "[]" replaced with your own identifying + * information: Portions Copyright [yyyy] [name of copyright owner] + * + * CDDL HEADER END + */ +/* + * Copyright 1986 Sun Microsystems, Inc. All rights reserved. + * Use is subject to license terms. + */ + +/* Copyright (c) 1984 AT&T */ +/* All Rights Reserved */ + +#pragma ident "%Z%%M% %I% %E% SMI" /* from S5R2 2.2 */ + +/*LINTLIBRARY*/ +#include <stdio.h> + +extern void free(); +extern int isatty(); +extern unsigned char (*_smbuf)[_SBFSIZ]; +extern void _getsmbuf(); + +void +setbuf(iop, buf) +register FILE *iop; +char *buf; +{ + register int fno = fileno(iop); /* file number */ + + if(iop->_base != NULL && iop->_flag & _IOMYBUF) + free((char*)iop->_base); + iop->_flag &= ~(_IOMYBUF | _IONBF | _IOLBF); + if((iop->_base = (unsigned char*)buf) == NULL) { + iop->_flag |= _IONBF; /* file unbuffered except in fastio */ + /* use small buffers reserved for this */ + iop->_base = _smbuf[fno]; + iop->_bufsiz = _SBFSIZ; + } + else /* regular buffered I/O, standard buffer size */ + iop->_bufsiz = BUFSIZ; + iop->_ptr = iop->_base; + iop->_cnt = 0; +} |