rdata/generic/mf_4.c

	mf_4.c revision 3d5cad69ec20157912e95cf3b79316dfb0a314f3
/*
 * Copyright (C) 1998  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: mf_4.c,v 1.4 1999/01/20 05:20:20 marka Exp $ */

#ifndef RDATA_GENERIC_MF_4_H
#define RDATA_GENERIC_MF_4_H

static dns_result_t
fromtext_mf(dns_rdataclass_t class, dns_rdatatype_t type,
        isc_lex_t *lexer, dns_name_t *origin,
        isc_boolean_t downcase, isc_buffer_t *target) {
    isc_token_t token;
    dns_name_t name;
    isc_buffer_t buffer;
    unsigned int options = ISC_LEXOPT_EOL | ISC_LEXOPT_EOF;

    REQUIRE(type == 4);

    class = class;  /*unused*/

    if (isc_lex_gettoken(lexer, options, &token) != ISC_R_SUCCESS)
        return (DNS_R_UNEXPECTED);
    if (token.type != isc_tokentype_string) {
        isc_lex_ungettoken(lexer, &token);
        if (token.type == isc_tokentype_eol ||
            token.type == isc_tokentype_eof)
            return(DNS_R_UNEXPECTEDEND);
        return (DNS_R_UNEXPECTED);
    }

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

static dns_result_t
totext_mf(dns_rdata_t *rdata, dns_name_t *origin, isc_buffer_t *target) {
    isc_region_t region;
    dns_name_t name;
    dns_name_t prefix;
    isc_boolean_t sub;

    REQUIRE(rdata->type == 4);

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

    sub = name_prefix(&name, origin, &prefix);

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

static dns_result_t
fromwire_mf(dns_rdataclass_t class, dns_rdatatype_t type,
        isc_buffer_t *source, dns_decompress_t *dctx,
        isc_boolean_t downcase, isc_buffer_t *target) {
        dns_name_t name;

    REQUIRE(type == 4);

    class = class;  /*unused*/

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

static dns_result_t
towire_mf(dns_rdata_t *rdata, dns_compress_t *cctx, isc_buffer_t *target) {
    dns_name_t name;
    isc_region_t region;

    REQUIRE(rdata->type == 4);

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

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

static int
compare_mf(dns_rdata_t *rdata1, dns_rdata_t *rdata2) {
    dns_name_t name1;
    dns_name_t name2;
    isc_region_t region1;
    isc_region_t region2;

    REQUIRE(rdata1->type == rdata2->type);
    REQUIRE(rdata1->class == rdata2->class);
    REQUIRE(rdata1->type == 4);

    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_compare(&name1, &name2));
}

static dns_result_t
fromstruct_mf(dns_rdataclass_t class, dns_rdatatype_t type, void *source,
         isc_buffer_t *target) {

    REQUIRE(type == 4);

    class = class;  /*unused*/

    source = source;
    target = target;

    return (DNS_R_NOTIMPLEMENTED);
}

static dns_result_t
tostruct_mf(dns_rdata_t *rdata, void *target) {

    REQUIRE(rdata->type == 4);

    target = target;

    return (DNS_R_NOTIMPLEMENTED);
}
#endif  /* RDATA_GENERIC_MF_4_H */