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Diffstat (limited to 'usr/src/psm/promif/ieee1275/common/prom_stdin.c')
-rw-r--r--usr/src/psm/promif/ieee1275/common/prom_stdin.c73
1 files changed, 73 insertions, 0 deletions
diff --git a/usr/src/psm/promif/ieee1275/common/prom_stdin.c b/usr/src/psm/promif/ieee1275/common/prom_stdin.c
new file mode 100644
index 0000000000..f371d5e4ad
--- /dev/null
+++ b/usr/src/psm/promif/ieee1275/common/prom_stdin.c
@@ -0,0 +1,73 @@
+/*
+ * 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 (c) 1994, by Sun Microsystems, Inc.
+ * All rights reserved.
+ */
+
+#pragma ident "%Z%%M% %I% %E% SMI"
+
+#include <sys/promif.h>
+#include <sys/promimpl.h>
+
+/*
+ * Return ihandle of stdin
+ */
+ihandle_t
+prom_stdin_ihandle(void)
+{
+ static ihandle_t istdin;
+ static char *name = "stdin";
+
+ if (istdin)
+ return (istdin);
+
+ if (prom_getproplen(prom_chosennode(), name) !=
+ sizeof (ihandle_t)) {
+#if defined(PROMIF_DEBUG) || defined(lint)
+ prom_fatal_error("No stdout ihandle?");
+#endif
+ return (istdin = (ihandle_t)-1);
+ }
+ (void) prom_getprop(prom_chosennode(), name,
+ (caddr_t)(&istdin));
+ istdin = prom_decode_int(istdin);
+ return (istdin);
+}
+
+/*
+ * Return phandle of stdin
+ */
+dnode_t
+prom_stdin_node(void)
+{
+ static phandle_t pstdin;
+ ihandle_t istdin;
+
+ if (pstdin)
+ return (pstdin);
+
+ if ((istdin = prom_stdin_ihandle()) == (ihandle_t)-1)
+ return (pstdin = (dnode_t)OBP_BADNODE);
+
+ return (pstdin = prom_getphandle(istdin));
+}