1 /*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License, Version 1.0 only
6 * (the "License"). You may not use this file except in compliance
7 * with the License.
8 *
9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10 * or http://www.opensolaris.org/os/licensing.
11 * See the License for the specific language governing permissions
12 * and limitations under the License.
13 *
14 * When distributing Covered Code, include this CDDL HEADER in each
15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16 * If applicable, add the following below this CDDL HEADER, with the
17 * fields enclosed by brackets "[]" replaced with your own identifying
18 * information: Portions Copyright [yyyy] [name of copyright owner]
19 *
20 * CDDL HEADER END
21 */
22 /*
23 * Copyright (c) 1991-1994, by Sun Microsystems, Inc.
24 * All rights reserved.
25 */
26
27 #pragma ident "%Z%%M% %I% %E% SMI"
28
29 #include <sys/promif.h>
30 #include <sys/promimpl.h>
31
32 void
prom_putchar(char c)33 prom_putchar(char c)
34 {
35 while (prom_mayput(c) == -1)
36 ;
37 }
38
39 int
prom_mayput(char c)40 prom_mayput(char c)
41 {
42 /*
43 * prom_write returns the number of bytes that were written
44 */
45 if (prom_write(prom_stdout_ihandle(), &c, 1, 0, BYTE) > 0)
46 return (0);
47 else
48 return (-1);
49 }
50