OpenSolaris Launch

1 files changed, 89 insertions, 0 deletions

diff --git a/usr/src/lib/libbc/libc/stdio/common/setbuffer.c b/usr/src/lib/libbc/libc/stdio/common/setbuffer.c
new file mode 100644
index 0000000000..5b8ffb2aca
--- /dev/null
+++ b/usr/src/lib/libbc/libc/stdio/common/setbuffer.c
@@ -0,0 +1,89 @@
+/*
+ * 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.
+ */
+
+/*
+ * University Copyright- Copyright (c) 1982, 1986, 1988
+ * The Regents of the University of California
+ * All Rights Reserved
+ *
+ * University Acknowledgment- Portions of this document are derived from
+ * software developed by the University of California, Berkeley, and its
+ * contributors.
+ */
+
+#pragma ident	"%Z%%M%	%I%	%E% SMI" 
+ /* from UCB 4.2 83/02/27 */
+
+#include <stdio.h>
+
+extern void free();
+extern int isatty();
+extern unsigned char (*_smbuf)[_SBFSIZ];
+extern void _getsmbuf();
+
+void
+setbuffer(iop, buf, size)
+	register FILE *iop;
+	char *buf;
+	int size;
+{
+	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, specified buffer size */
+		if (size <= 0)
+			return;
+		iop->_bufsiz = size;
+	}
+	iop->_ptr = iop->_base;
+	iop->_cnt = 0;
+}
+
+/*
+ * set line buffering
+ */
+setlinebuf(iop)
+	register FILE *iop;
+{
+	register unsigned char *buf;
+	extern char *malloc();
+
+	fflush(iop);
+	setbuffer(iop, (unsigned char *)NULL, 0);
+	buf = (unsigned char *)malloc(128);
+	if (buf != NULL) {
+		setbuffer(iop, buf, 128);
+		iop->_flag |= _IOLBF|_IOMYBUF;
+	}
+}