obp/tools/promif/common/prom_boot.c

/*
* ========== Copyright Header Begin ==========================================
*
* Hypervisor Software File: prom_boot.c
*
* Copyright (c) 2006 Sun Microsystems, Inc. All Rights Reserved.
*
*  - Do no alter or remove copyright notices
*
*  - Redistribution and use of this software in source and binary forms, with
*    or without modification, are permitted provided that the following
*    conditions are met:
*
*  - Redistribution of source code must retain the above copyright notice,
*    this list of conditions and the following disclaimer.
*
*  - Redistribution in binary form must reproduce the above copyright notice,
*    this list of conditions and the following disclaimer in the
*    documentation and/or other materials provided with the distribution.
*
*    Neither the name of Sun Microsystems, Inc. or the names of contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
*     This software is provided "AS IS," without a warranty of any kind.
* ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES,
* INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A
* PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN
* MICROSYSTEMS, INC. ("SUN") AND ITS LICENSORS SHALL NOT BE LIABLE FOR
* ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR
* DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL SUN
* OR ITS LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR
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* DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY,
* ARISING OUT OF THE USE OF OR INABILITY TO USE THIS SOFTWARE, EVEN IF
* SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
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* You acknowledge that this software is not designed, licensed or
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*
* ========== Copyright Header End ============================================
*/
/*
 * Copyright (c) 2000-2003 Sun Microsystems, Inc.
 * All rights reserved.
 * Use is subject to license terms.
 */

#pragma ident   "@(#)prom_boot.c        1.1     00/07/22 SMI"

#include <sys/promif.h>
#include <sys/promimpl.h>

char *
prom_bootargs(void)
{
        int32_t length;
        dnode_t node;
        static char *name = "bootargs";
        static char bootargs[OBP_MAXPATHLEN];

        if (bootargs[0] != (char)0)
                return (bootargs);

        node = prom_chosennode();
        length = prom_getproplen(node, name);

        if ((length == -1) || (length == 0))
                return (NULL);

        if (length > OBP_MAXPATHLEN)
                length = OBP_MAXPATHLEN - 1;    /* Null terminator */

        (void) prom_bounded_getprop(node, name, bootargs, length);

        return (bootargs);
}

char *
prom_bootpath(void)
{
        static char bootpath[OBP_MAXPATHLEN];
        int32_t length;
        dnode_t node;
        static char *name = "bootpath";

        if (bootpath[0] != (char)0)
                return (bootpath);

        node = prom_chosennode();
        length = prom_getproplen(node, name);

        if ((length == -1) || (length == 0))
                return (NULL);

        if (length > OBP_MAXPATHLEN)
                length = OBP_MAXPATHLEN - 1;    /* Null terminator */

        (void) prom_bounded_getprop(node, name, bootpath, length);

        return (bootpath);
}