rdata/generic/gpos_27.c

	gpos_27.c revision 0c27b3fe77ac1d5094ba3521e8142d9e7973133f
/*
 * Copyright (C) 1999-2002, 2004, 2005, 2007, 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: gpos_27.c,v 1.43 2009/12/04 22:06:37 tbox Exp $ */

/* reviewed: Wed Mar 15 16:48:45 PST 2000 by brister */

/* RFC1712 */

#ifndef RDATA_GENERIC_GPOS_27_C
#define RDATA_GENERIC_GPOS_27_C

#define RRTYPE_GPOS_ATTRIBUTES (0)

static inline isc_result_t
fromtext_gpos(ARGS_FROMTEXT) {
    isc_token_t token;
    int i;

    REQUIRE(type == dns_rdatatype_gpos);

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

    for (i = 0; i < 3; i++) {
        RETERR(isc_lex_getmastertoken(lexer, &token,
                          isc_tokentype_qstring,
                          ISC_FALSE));
        RETTOK(txt_fromtext(&token.value.as_textregion, target));
    }
    return (ISC_R_SUCCESS);
}

static inline isc_result_t
totext_gpos(ARGS_TOTEXT) {
    isc_region_t region;
    int i;

    REQUIRE(rdata->type == dns_rdatatype_gpos);
    REQUIRE(rdata->length != 0);

    UNUSED(tctx);

    dns_rdata_toregion(rdata, &region);

    for (i = 0; i < 3; i++) {
        RETERR(txt_totext(&region, ISC_TRUE, target));
        if (i != 2)
            RETERR(str_totext(" ", target));
    }

    return (ISC_R_SUCCESS);
}

static inline isc_result_t
fromwire_gpos(ARGS_FROMWIRE) {
    int i;

    REQUIRE(type == dns_rdatatype_gpos);

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

    for (i = 0; i < 3; i++)
        RETERR(txt_fromwire(source, target));
    return (ISC_R_SUCCESS);
}

static inline isc_result_t
towire_gpos(ARGS_TOWIRE) {

    REQUIRE(rdata->type == dns_rdatatype_gpos);
    REQUIRE(rdata->length != 0);

    UNUSED(cctx);

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

static inline int
compare_gpos(ARGS_COMPARE) {
    isc_region_t r1;
    isc_region_t r2;

    REQUIRE(rdata1->type == rdata2->type);
    REQUIRE(rdata1->rdclass == rdata2->rdclass);
    REQUIRE(rdata1->type == dns_rdatatype_gpos);
    REQUIRE(rdata1->length != 0);
    REQUIRE(rdata2->length != 0);

    dns_rdata_toregion(rdata1, &r1);
    dns_rdata_toregion(rdata2, &r2);
    return (isc_region_compare(&r1, &r2));
}

static inline isc_result_t
fromstruct_gpos(ARGS_FROMSTRUCT) {
    dns_rdata_gpos_t *gpos = source;

    REQUIRE(type == dns_rdatatype_gpos);
    REQUIRE(source != NULL);
    REQUIRE(gpos->common.rdtype == type);
    REQUIRE(gpos->common.rdclass == rdclass);

    UNUSED(type);
    UNUSED(rdclass);

    RETERR(uint8_tobuffer(gpos->long_len, target));
    RETERR(mem_tobuffer(target, gpos->longitude, gpos->long_len));
    RETERR(uint8_tobuffer(gpos->lat_len, target));
    RETERR(mem_tobuffer(target, gpos->latitude, gpos->lat_len));
    RETERR(uint8_tobuffer(gpos->alt_len, target));
    return (mem_tobuffer(target, gpos->altitude, gpos->alt_len));
}

static inline isc_result_t
tostruct_gpos(ARGS_TOSTRUCT) {
    dns_rdata_gpos_t *gpos = target;
    isc_region_t region;

    REQUIRE(rdata->type == dns_rdatatype_gpos);
    REQUIRE(target != NULL);
    REQUIRE(rdata->length != 0);

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

    dns_rdata_toregion(rdata, &region);
    gpos->long_len = uint8_fromregion(&region);
    isc_region_consume(&region, 1);
    gpos->longitude = mem_maybedup(mctx, region.base, gpos->long_len);
    if (gpos->longitude == NULL)
        return (ISC_R_NOMEMORY);
    isc_region_consume(&region, gpos->long_len);

    gpos->lat_len = uint8_fromregion(&region);
    isc_region_consume(&region, 1);
    gpos->latitude = mem_maybedup(mctx, region.base, gpos->lat_len);
    if (gpos->latitude == NULL)
        goto cleanup_longitude;
    isc_region_consume(&region, gpos->lat_len);

    gpos->alt_len = uint8_fromregion(&region);
    isc_region_consume(&region, 1);
    if (gpos->lat_len > 0) {
        gpos->altitude =
            mem_maybedup(mctx, region.base, gpos->alt_len);
        if (gpos->altitude == NULL)
            goto cleanup_latitude;
    } else
        gpos->altitude = NULL;

    gpos->mctx = mctx;
    return (ISC_R_SUCCESS);

 cleanup_latitude:
    if (mctx != NULL && gpos->longitude != NULL)
        isc_mem_free(mctx, gpos->longitude);

 cleanup_longitude:
    if (mctx != NULL && gpos->latitude != NULL)
        isc_mem_free(mctx, gpos->latitude);
    return (ISC_R_NOMEMORY);
}

static inline void
freestruct_gpos(ARGS_FREESTRUCT) {
    dns_rdata_gpos_t *gpos = source;

    REQUIRE(source != NULL);
    REQUIRE(gpos->common.rdtype == dns_rdatatype_gpos);

    if (gpos->mctx == NULL)
        return;

    if (gpos->longitude != NULL)
        isc_mem_free(gpos->mctx, gpos->longitude);
    if (gpos->latitude != NULL)
        isc_mem_free(gpos->mctx, gpos->latitude);
    if (gpos->altitude != NULL)
        isc_mem_free(gpos->mctx, gpos->altitude);
    gpos->mctx = NULL;
}

static inline isc_result_t
additionaldata_gpos(ARGS_ADDLDATA) {
    REQUIRE(rdata->type == dns_rdatatype_gpos);

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

    return (ISC_R_SUCCESS);
}

static inline isc_result_t
digest_gpos(ARGS_DIGEST) {
    isc_region_t r;

    REQUIRE(rdata->type == dns_rdatatype_gpos);

    dns_rdata_toregion(rdata, &r);

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

static inline isc_boolean_t
checkowner_gpos(ARGS_CHECKOWNER) {

    REQUIRE(type == dns_rdatatype_gpos);

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

    return (ISC_TRUE);
}

static inline isc_boolean_t
checknames_gpos(ARGS_CHECKNAMES) {

    REQUIRE(rdata->type == dns_rdatatype_gpos);

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

    return (ISC_TRUE);
}

static inline int
casecompare_gpos(ARGS_COMPARE) {
    return (compare_gpos(rdata1, rdata2));
}

#endif  /* RDATA_GENERIC_GPOS_27_C */