gpos_27.c

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/*
 * Copyright (C) 2004, 2005, 2007, 2009, 2014  Internet Systems Consortium, Inc. ("ISC")
 * Copyright (C) 1999-2002  Internet Software Consortium.
 *
 * 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.
 */

/* $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 == 27);

        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 == 27);
        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 == 27);

        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 == 27);
        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 == 27);
        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 == 27);
        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 == 27);
        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 == 27);

        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 == 27);

        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 == 27);

        dns_rdata_toregion(rdata, &r);

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

static inline isc_boolean_t
checkowner_gpos(ARGS_CHECKOWNER) {

        REQUIRE(type == 27);

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

        return (ISC_TRUE);
}

static inline isc_boolean_t
checknames_gpos(ARGS_CHECKNAMES) {

        REQUIRE(rdata->type == 27);

        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 */

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