lib/dns/keydata.c

	keydata.c revision 0c27b3fe77ac1d5094ba3521e8142d9e7973133f
/*
 * Copyright (C) 2009, 2014, 2016  Internet Systems Consortium, Inc. ("ISC")
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 */

/* $Id: keydata.c,v 1.3 2009/07/01 23:47:36 tbox Exp $ */

/*! \file */

#include <config.h>


#include <isc/buffer.h>
#include <isc/mem.h>
#include <isc/string.h>
#include <isc/util.h>

#include <dns/rdata.h>
#include <dns/rdatastruct.h>
#include <dns/keydata.h>

isc_result_t
dns_keydata_todnskey(dns_rdata_keydata_t *keydata,
             dns_rdata_dnskey_t *dnskey, isc_mem_t *mctx)
{
    REQUIRE(keydata != NULL && dnskey != NULL);

    dnskey->common.rdtype = dns_rdatatype_dnskey;
    dnskey->common.rdclass = keydata->common.rdclass;
    dnskey->mctx = mctx;
    dnskey->flags = keydata->flags;
    dnskey->protocol = keydata->protocol;
    dnskey->algorithm = keydata->algorithm;

    dnskey->datalen = keydata->datalen;

    if (mctx == NULL)
        dnskey->data = keydata->data;
    else {
        dnskey->data = isc_mem_allocate(mctx, dnskey->datalen);
        if (dnskey->data == NULL)
            return (ISC_R_NOMEMORY);
        memmove(dnskey->data, keydata->data, dnskey->datalen);
    }

    return (ISC_R_SUCCESS);
}

isc_result_t
dns_keydata_fromdnskey(dns_rdata_keydata_t *keydata,
               dns_rdata_dnskey_t *dnskey,
               isc_uint32_t refresh, isc_uint32_t addhd,
               isc_uint32_t removehd, isc_mem_t *mctx)
{
    REQUIRE(keydata != NULL && dnskey != NULL);

    keydata->common.rdtype = dns_rdatatype_keydata;
    keydata->common.rdclass = dnskey->common.rdclass;
    keydata->mctx = mctx;
    keydata->refresh = refresh;
    keydata->addhd = addhd;
    keydata->removehd = removehd;
    keydata->flags = dnskey->flags;
    keydata->protocol = dnskey->protocol;
    keydata->algorithm = dnskey->algorithm;

    keydata->datalen = dnskey->datalen;
    if (mctx == NULL)
        keydata->data = dnskey->data;
    else {
        keydata->data = isc_mem_allocate(mctx, keydata->datalen);
        if (keydata->data == NULL)
            return (ISC_R_NOMEMORY);
        memmove(keydata->data, dnskey->data, keydata->datalen);
    }

    return (ISC_R_SUCCESS);
}