17c478bd9Sstevel@tonic-gate /*
27c478bd9Sstevel@tonic-gate * CDDL HEADER START
37c478bd9Sstevel@tonic-gate *
47c478bd9Sstevel@tonic-gate * The contents of this file are subject to the terms of the
57c478bd9Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only
67c478bd9Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance
77c478bd9Sstevel@tonic-gate * with the License.
87c478bd9Sstevel@tonic-gate *
97c478bd9Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
107c478bd9Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing.
117c478bd9Sstevel@tonic-gate * See the License for the specific language governing permissions
127c478bd9Sstevel@tonic-gate * and limitations under the License.
137c478bd9Sstevel@tonic-gate *
147c478bd9Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each
157c478bd9Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
167c478bd9Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the
177c478bd9Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying
187c478bd9Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner]
197c478bd9Sstevel@tonic-gate *
207c478bd9Sstevel@tonic-gate * CDDL HEADER END
217c478bd9Sstevel@tonic-gate */
227c478bd9Sstevel@tonic-gate /*
23*fa9e4066Sahrens * Copyright 2005 Sun Microsystems, Inc. All rights reserved.
24*fa9e4066Sahrens * Use is subject to license terms.
257c478bd9Sstevel@tonic-gate */
267c478bd9Sstevel@tonic-gate
277c478bd9Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI"
287c478bd9Sstevel@tonic-gate
297c478bd9Sstevel@tonic-gate #include <sys/promif.h>
307c478bd9Sstevel@tonic-gate #include <sys/promimpl.h>
317c478bd9Sstevel@tonic-gate
327c478bd9Sstevel@tonic-gate /*
337c478bd9Sstevel@tonic-gate * Return a character string in buf,buflen representing the running
347c478bd9Sstevel@tonic-gate * version of the firmware. Systems that have no concept of such a
357c478bd9Sstevel@tonic-gate * string may return the string "unknown".
367c478bd9Sstevel@tonic-gate *
377c478bd9Sstevel@tonic-gate * Return the actual length of the string, including the NULL terminator.
387c478bd9Sstevel@tonic-gate * Copy at most buflen bytes into the caller's buffer, always providing
397c478bd9Sstevel@tonic-gate * NULL termination.
407c478bd9Sstevel@tonic-gate *
417c478bd9Sstevel@tonic-gate * Returns the actual length of the string, plus copies data in the callers
427c478bd9Sstevel@tonic-gate * buf copying at most buflen bytes. Returns -1 if an internal error occurs.
437c478bd9Sstevel@tonic-gate */
447c478bd9Sstevel@tonic-gate
457c478bd9Sstevel@tonic-gate int
prom_version_name(char * buf,int buflen)467c478bd9Sstevel@tonic-gate prom_version_name(char *buf, int buflen)
477c478bd9Sstevel@tonic-gate {
48*fa9e4066Sahrens pnode_t nodeid;
497c478bd9Sstevel@tonic-gate int proplen;
507c478bd9Sstevel@tonic-gate char *unknown = "unknown";
517c478bd9Sstevel@tonic-gate
527c478bd9Sstevel@tonic-gate *buf = *(buf + buflen - 1) = (char)0; /* Force NULL termination */
537c478bd9Sstevel@tonic-gate
547c478bd9Sstevel@tonic-gate /*
557c478bd9Sstevel@tonic-gate * On sun4u systems, the /openprom "version" property
567c478bd9Sstevel@tonic-gate * contains the running version of the prom. Some older
577c478bd9Sstevel@tonic-gate * pre-FCS proms may not have the "version" property, so
587c478bd9Sstevel@tonic-gate * in that case we just return "unknown".
597c478bd9Sstevel@tonic-gate */
607c478bd9Sstevel@tonic-gate
617c478bd9Sstevel@tonic-gate nodeid = prom_finddevice("/openprom");
62*fa9e4066Sahrens if (nodeid == (pnode_t)-1)
637c478bd9Sstevel@tonic-gate return (-1);
647c478bd9Sstevel@tonic-gate
657c478bd9Sstevel@tonic-gate proplen = prom_bounded_getprop(nodeid, "version", buf, buflen - 1);
667c478bd9Sstevel@tonic-gate if (proplen <= 0) {
677c478bd9Sstevel@tonic-gate (void) prom_strncpy(buf, unknown, buflen - 1);
687c478bd9Sstevel@tonic-gate return (prom_strlen(unknown) + 1);
697c478bd9Sstevel@tonic-gate }
707c478bd9Sstevel@tonic-gate
717c478bd9Sstevel@tonic-gate return (proplen);
727c478bd9Sstevel@tonic-gate }
73