rdata/generic/eui48_108.c

/*
 * Copyright (C) 2013-2016  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/.
 */

#ifndef RDATA_GENERIC_EUI48_108_C
#define RDATA_GENERIC_EUI48_108_C

#include <string.h>

#define RRTYPE_EUI48_ATTRIBUTES (0)

static inline isc_result_t
fromtext_eui48(ARGS_FROMTEXT) {
    isc_token_t token;
    unsigned char eui48[6];
    unsigned int l0, l1, l2, l3, l4, l5;
    int n;

    REQUIRE(type == dns_rdatatype_eui48);

    UNUSED(type);
    UNUSED(rdclass);
    UNUSED(origin);
    UNUSED(options);
    UNUSED(callbacks);

    RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_string,
                      ISC_FALSE));
    n = sscanf(DNS_AS_STR(token), "%2x-%2x-%2x-%2x-%2x-%2x",
           &l0, &l1, &l2, &l3, &l4, &l5);
    if (n != 6 || l0 > 255U || l1 > 255U || l2 > 255U || l3 > 255U ||
        l4 > 255U || l5 > 255U)
        return (DNS_R_BADEUI);

    eui48[0] = l0;
    eui48[1] = l1;
    eui48[2] = l2;
    eui48[3] = l3;
    eui48[4] = l4;
    eui48[5] = l5;
    return (mem_tobuffer(target, eui48, sizeof(eui48)));
}

static inline isc_result_t
totext_eui48(ARGS_TOTEXT) {
    char buf[sizeof("xx-xx-xx-xx-xx-xx")];

    REQUIRE(rdata->type == dns_rdatatype_eui48);
    REQUIRE(rdata->length == 6);

    UNUSED(tctx);

    (void)snprintf(buf, sizeof(buf), "%02x-%02x-%02x-%02x-%02x-%02x",
               rdata->data[0], rdata->data[1], rdata->data[2],
               rdata->data[3], rdata->data[4], rdata->data[5]);
    return (str_totext(buf, target));
}

static inline isc_result_t
fromwire_eui48(ARGS_FROMWIRE) {
    isc_region_t sregion;

    REQUIRE(type == dns_rdatatype_eui48);

    UNUSED(type);
    UNUSED(options);
    UNUSED(rdclass);
    UNUSED(dctx);

    isc_buffer_activeregion(source, &sregion);
    if (sregion.length != 6)
        return (DNS_R_FORMERR);
    isc_buffer_forward(source, sregion.length);
    return (mem_tobuffer(target, sregion.base, sregion.length));
}

static inline isc_result_t
towire_eui48(ARGS_TOWIRE) {

    REQUIRE(rdata->type == dns_rdatatype_eui48);
    REQUIRE(rdata->length == 6);

    UNUSED(cctx);

    return (mem_tobuffer(target, rdata->data, rdata->length));
}

static inline int
compare_eui48(ARGS_COMPARE) {
    isc_region_t region1;
    isc_region_t region2;

    REQUIRE(rdata1->type == rdata2->type);
    REQUIRE(rdata1->rdclass == rdata2->rdclass);
    REQUIRE(rdata1->type == dns_rdatatype_eui48);
    REQUIRE(rdata1->length == 6);
    REQUIRE(rdata2->length == 6);

    dns_rdata_toregion(rdata1, &region1);
    dns_rdata_toregion(rdata2, &region2);
    return (isc_region_compare(&region1, &region2));
}

static inline isc_result_t
fromstruct_eui48(ARGS_FROMSTRUCT) {
    dns_rdata_eui48_t *eui48 = source;

    REQUIRE(type == dns_rdatatype_eui48);
    REQUIRE(source != NULL);
    REQUIRE(eui48->common.rdtype == type);
    REQUIRE(eui48->common.rdclass == rdclass);

    UNUSED(type);
    UNUSED(rdclass);

    return (mem_tobuffer(target, eui48->eui48, sizeof(eui48->eui48)));
}

static inline isc_result_t
tostruct_eui48(ARGS_TOSTRUCT) {
    dns_rdata_eui48_t *eui48 = target;

    REQUIRE(rdata->type == dns_rdatatype_eui48);
    REQUIRE(target != NULL);
    REQUIRE(rdata->length == 6);

    UNUSED(mctx);

    eui48->common.rdclass = rdata->rdclass;
    eui48->common.rdtype = rdata->type;
    ISC_LINK_INIT(&eui48->common, link);

    memmove(eui48->eui48, rdata->data, rdata->length);
    return (ISC_R_SUCCESS);
}

static inline void
freestruct_eui48(ARGS_FREESTRUCT) {
    dns_rdata_eui48_t *eui48 = source;

    REQUIRE(source != NULL);
    REQUIRE(eui48->common.rdtype == dns_rdatatype_eui48);

    return;
}

static inline isc_result_t
additionaldata_eui48(ARGS_ADDLDATA) {

    REQUIRE(rdata->type == dns_rdatatype_eui48);
    REQUIRE(rdata->length == 6);

    UNUSED(rdata);
    UNUSED(add);
    UNUSED(arg);

    return (ISC_R_SUCCESS);
}

static inline isc_result_t
digest_eui48(ARGS_DIGEST) {
    isc_region_t r;

    REQUIRE(rdata->type == dns_rdatatype_eui48);
    REQUIRE(rdata->length == 6);

    dns_rdata_toregion(rdata, &r);

    return ((digest)(arg, &r));
}

static inline isc_boolean_t
checkowner_eui48(ARGS_CHECKOWNER) {

    REQUIRE(type == dns_rdatatype_eui48);

    UNUSED(name);
    UNUSED(type);
    UNUSED(rdclass);
    UNUSED(wildcard);

    return (ISC_TRUE);
}

static inline isc_boolean_t
checknames_eui48(ARGS_CHECKNAMES) {

    REQUIRE(rdata->type == dns_rdatatype_eui48);
    REQUIRE(rdata->length == 6);

    UNUSED(rdata);
    UNUSED(owner);
    UNUSED(bad);

    return (ISC_TRUE);
}

static inline int
casecompare_eui48(ARGS_COMPARE) {
    return (compare_eui48(rdata1, rdata2));
}

#endif  /* RDATA_GENERIC_EUI48_108_C */