rdata/in_1/nsap-ptr_23.c

	nsap-ptr_23.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: nsap-ptr_23.c,v 1.23 2000/07/27 09:50:09 tale Exp $ */

/* Reviewed: Fri Mar 17 10:16:02 PST 2000 by gson */

/* RFC 1348.  Obsoleted in RFC 1706 - use PTR instead. */

#ifndef RDATA_IN_1_NSAP_PTR_23_C
#define RDATA_IN_1_NSAP_PTR_23_C

#define RRTYPE_NSAP_PTR_ATTRIBUTES (0)

static inline isc_result_t
fromtext_in_nsap_ptr(ARGS_FROMTEXT) {
    isc_token_t token;
    dns_name_t name;
    isc_buffer_t buffer;

    REQUIRE(type == 23);
    REQUIRE(rdclass == 1);

    RETERR(gettoken(lexer, &token, isc_tokentype_string, ISC_FALSE));

    dns_name_init(&name, NULL);
    buffer_fromregion(&buffer, &token.value.as_region);
    origin = (origin != NULL) ? origin : dns_rootname;
    return (dns_name_fromtext(&name, &buffer, origin, downcase, target));
}

static inline isc_result_t
totext_in_nsap_ptr(ARGS_TOTEXT) {
    isc_region_t region;
    dns_name_t name;
    dns_name_t prefix;
    isc_boolean_t sub;

    REQUIRE(rdata->type == 23);
    REQUIRE(rdata->rdclass == 1);

    dns_name_init(&name, NULL);
    dns_name_init(&prefix, NULL);

    dns_rdata_toregion(rdata, &region);
    dns_name_fromregion(&name, &region);

    sub = name_prefix(&name, tctx->origin, &prefix);

    return (dns_name_totext(&prefix, sub, target));
}

static inline isc_result_t
fromwire_in_nsap_ptr(ARGS_FROMWIRE) {
        dns_name_t name;

    REQUIRE(type == 23);
    REQUIRE(rdclass == 1);

    dns_decompress_setmethods(dctx, DNS_COMPRESS_NONE);

        dns_name_init(&name, NULL);
        return (dns_name_fromwire(&name, source, dctx, downcase, target));
}

static inline isc_result_t
towire_in_nsap_ptr(ARGS_TOWIRE) {
    dns_name_t name;
    isc_region_t region;

    REQUIRE(rdata->type == 23);
    REQUIRE(rdata->rdclass == 1);

    dns_compress_setmethods(cctx, DNS_COMPRESS_NONE);
    dns_name_init(&name, NULL);
    dns_rdata_toregion(rdata, &region);
    dns_name_fromregion(&name, &region);

    return (dns_name_towire(&name, cctx, target));
}

static inline int
compare_in_nsap_ptr(ARGS_COMPARE) {
    dns_name_t name1;
    dns_name_t name2;
    isc_region_t region1;
    isc_region_t region2;

    REQUIRE(rdata1->type == rdata2->type);
    REQUIRE(rdata1->rdclass == rdata2->rdclass);
    REQUIRE(rdata1->type == 23);
    REQUIRE(rdata1->rdclass == 1);

    dns_name_init(&name1, NULL);
    dns_name_init(&name2, NULL);

    dns_rdata_toregion(rdata1, &region1);
    dns_rdata_toregion(rdata2, &region2);

    dns_name_fromregion(&name1, &region1);
    dns_name_fromregion(&name2, &region2);

    return (dns_name_rdatacompare(&name1, &name2));
}

static inline isc_result_t
fromstruct_in_nsap_ptr(ARGS_FROMSTRUCT) {
    dns_rdata_in_nsap_ptr_t *nsap_ptr = source;
    isc_region_t region;

    REQUIRE(type == 23);
    REQUIRE(rdclass == 1);
    REQUIRE(source != NULL);
    REQUIRE(nsap_ptr->common.rdtype == type);
    REQUIRE(nsap_ptr->common.rdclass == rdclass);

    dns_name_toregion(&nsap_ptr->owner, &region);
    return (isc_buffer_copyregion(target, &region));
}

static inline isc_result_t
tostruct_in_nsap_ptr(ARGS_TOSTRUCT) {
    isc_region_t region;
    dns_rdata_in_nsap_ptr_t *nsap_ptr = target;
    dns_name_t name;

    REQUIRE(rdata->type == 23);
    REQUIRE(rdata->rdclass == 1);
    REQUIRE(target != NULL);

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

    dns_name_init(&name, NULL);
    dns_rdata_toregion(rdata, &region);
    dns_name_fromregion(&name, &region);
    dns_name_init(&nsap_ptr->owner, NULL);
    RETERR(name_duporclone(&name, mctx, &nsap_ptr->owner));
    nsap_ptr->mctx = mctx;
    return (ISC_R_SUCCESS);
}

static inline void
freestruct_in_nsap_ptr(ARGS_FREESTRUCT) {
    dns_rdata_in_nsap_ptr_t *nsap_ptr = source;

    REQUIRE(source != NULL);
    REQUIRE(nsap_ptr->common.rdclass == 1);
    REQUIRE(nsap_ptr->common.rdtype == 23);

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

    dns_name_free(&nsap_ptr->owner, nsap_ptr->mctx);
    nsap_ptr->mctx = NULL;
}

static inline isc_result_t
additionaldata_in_nsap_ptr(ARGS_ADDLDATA) {
    REQUIRE(rdata->type == 23);
    REQUIRE(rdata->rdclass == 1);

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

    return (ISC_R_SUCCESS);
}

static inline isc_result_t
digest_in_nsap_ptr(ARGS_DIGEST) {
    isc_region_t r;
    dns_name_t name;

    REQUIRE(rdata->type == 23);
    REQUIRE(rdata->rdclass == 1);

    dns_rdata_toregion(rdata, &r);
    dns_name_init(&name, NULL);
    dns_name_fromregion(&name, &r);

    return (dns_name_digest(&name, digest, arg));
}

#endif  /* RDATA_IN_1_NSAP_PTR_23_C */