1 files changed, 88 insertions, 0 deletions
diff --git a/usr/src/lib/libbc/libc/stdio/common/setvbuf.c b/usr/src/lib/libbc/libc/stdio/common/setvbuf.c
new file mode 100644
index 0000000000..3721c52147
--- /dev/null
+++ b/usr/src/lib/libbc/libc/stdio/common/setvbuf.c
@@ -0,0 +1,88 @@
+/*
+ * 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 1.2 */
+
+/*LINTLIBRARY*/
+#include <stdio.h>
+
+extern void free();
+extern unsigned char (*_smbuf)[_SBFSIZ];
+extern char *malloc();
+extern void _getsmbuf();
+
+int
+setvbuf(iop, buf, type, size)
+register FILE *iop;
+register char	*buf;
+register int type;
+register 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);
+	switch (type)  {
+	    /*note that the flags are the same as the possible values for type*/
+	    case _IONBF:
+		/* file is unbuffered except in fastio */
+		iop->_flag |= _IONBF;
+		/* use small buffers reserved for this */
+		iop->_base = _smbuf[fno];
+		iop->_bufsiz = _SBFSIZ;
+		break;
+	    case _IOLBF:
+	    case _IOFBF:
+		if (size < 0)
+			return -1;
+		iop->_flag |= type;
+		size = (size == 0) ? BUFSIZ : size;
+		/* 
+		* need eight characters beyond bufend for stdio slop
+		*/
+		if (size <= 8) {
+		    size = BUFSIZ;
+		    buf = NULL;
+		}
+		if (buf == NULL) {
+			size += 8;
+			buf = malloc((unsigned)size);
+			iop->_flag |= _IOMYBUF;
+		}
+		iop->_base = (unsigned char *)buf;
+		iop->_bufsiz = size - 8;
+		break;
+	    default:
+		return -1;
+	}
+	iop->_ptr = iop->_base;
+	iop->_cnt = 0;
+	return 0;
+}