77 lines
2.5 KiB
C
77 lines
2.5 KiB
C
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/*-
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* Copyright (c) 2006 Kip Macy
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/types.h>
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#include <sys/systm.h>
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#include <sys/malloc.h>
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#include <machine/cddl/mdesc.h>
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#include <machine/cddl/mdesc_impl.h>
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int
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md_get_prop_alloc(md_t *ptr, mde_cookie_t node, char *namep, int tag_type,
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uint8_t **datap)
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{
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mde_str_cookie_t prop_name;
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md_impl_t *mdp;
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mde_cookie_t elem;
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int len;
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mdp = (md_impl_t *)ptr;
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if (node == MDE_INVAL_ELEM_COOKIE) {
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return (-1);
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}
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prop_name = md_find_name(ptr, namep);
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if (prop_name == MDE_INVAL_STR_COOKIE) {
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return (-1);
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}
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elem = md_find_node_prop(mdp, node, prop_name, tag_type);
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if (elem != MDE_INVAL_ELEM_COOKIE) {
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md_element_t *mdep;
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mdep = &(mdp->mdep[(int)elem]);
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len = (int)MDE_PROP_DATA_LEN(mdep);
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KASSERT(len > 0, ("invalid length"));
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*datap = malloc(len, M_MDPROP, M_WAITOK);
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bcopy(mdp->datap + (int)MDE_PROP_DATA_OFFSET(mdep), *datap, len);
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return (0);
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}
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return (-1); /* no such property name */
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}
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