rdata/generic/gpos_27.c

	gpos_27.c revision 15a44745412679c30a6d022733925af70a38b715
/*
 * Copyright (C) 1999, 2000  Internet Software Consortium.
 *
 * Permission to use, copy, modify, and 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 INTERNET SOFTWARE CONSORTIUM
 * DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL
 * INTERNET SOFTWARE CONSORTIUM 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 1.23 2000/07/27 09:48:58 tale Exp $ */

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

/* RFC 1712 */

#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(rdclass);
    UNUSED(origin);
    UNUSED(downcase);

    for (i = 0; i < 3 ; i++) {
        RETERR(gettoken(lexer, &token, isc_tokentype_qstring,
                ISC_FALSE));
        RETERR(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);

    UNUSED(tctx);

    dns_rdata_toregion(rdata, &region);

    for (i = 0; i < 3 ; i++) {
        RETERR(txt_totext(&region, 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(dctx);
    UNUSED(rdclass);
    UNUSED(downcase);

    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);

    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);

    dns_rdata_toregion(rdata1, &r1);
    dns_rdata_toregion(rdata2, &r2);
    return (compare_region(&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);

    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);

    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);
    if (gpos->long_len != 0) {
        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);
    } else
        gpos->longitude = NULL;

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

    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));
}

#endif  /* RDATA_GENERIC_GPOS_27_C */