eui48_108.c

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/*
 * Copyright (C) 2013, 2014  Internet Systems Consortium, Inc. ("ISC")
 *
 * Permission to use, copy, modify, and/or distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
 * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
 * AND FITNESS.  IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
 * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
 * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
 * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
 * PERFORMANCE OF THIS SOFTWARE.
 */

#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 == 108);

        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 == 108);
        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 == 108);

        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 == 108);
        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 == 108);
        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 == 108);
        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 == 108);
        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 == 108);

        return;
}

static inline isc_result_t
additionaldata_eui48(ARGS_ADDLDATA) {

        REQUIRE(rdata->type == 108);
        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 == 108);
        REQUIRE(rdata->length == 6);

        dns_rdata_toregion(rdata, &r);

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

static inline isc_boolean_t
checkowner_eui48(ARGS_CHECKOWNER) {

        REQUIRE(type == 108);

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

        return (ISC_TRUE);
}

static inline isc_boolean_t
checknames_eui48(ARGS_CHECKNAMES) {

        REQUIRE(rdata->type == 108);
        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 */

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