rdata/generic/minfo_14.c

	minfo_14.c revision 1ef8965366d91e02a4672c35a187d30aa4a4c72c
/*
 * Copyright (C) 1998, 1999  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: minfo_14.c,v 1.11 1999/02/24 06:31:33 marka Exp $ */

#ifndef RDATA_GENERIC_MINFO_14_H
#define RDATA_GENERIC_MINFO_14_H

static dns_result_t
fromtext_minfo(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;
    int i;

    REQUIRE(type == 14);

    class = class;  /*unused*/

    for (i = 0; i < 2 ; i++) {
        RETERR(gettoken(lexer, &token, isc_tokentype_string,
                ISC_FALSE));
        dns_name_init(&name, NULL);
        buffer_fromregion(&buffer, &token.value.as_region,
                  ISC_BUFFERTYPE_TEXT);
        origin = (origin != NULL) ? origin : dns_rootname;
        RETERR(dns_name_fromtext(&name, &buffer, origin,
                     downcase, target));
    }
    return (DNS_R_SUCCESS);
}

static dns_result_t
totext_minfo(dns_rdata_t *rdata, dns_name_t *origin, isc_buffer_t *target) {
    isc_region_t region;
    dns_name_t rmail;
    dns_name_t email;
    dns_name_t prefix;
    isc_boolean_t sub;

    REQUIRE(rdata->type == 14);

    dns_name_init(&rmail, NULL);
    dns_name_init(&email, NULL);
    dns_name_init(&prefix, NULL);

    dns_rdata_toregion(rdata, &region);

    dns_name_fromregion(&rmail, &region);
    isc_region_consume(&region, rmail.length);

    dns_name_fromregion(&email, &region);
    isc_region_consume(&region, email.length);

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

    RETERR(dns_name_totext(&prefix, sub, target));

    RETERR(str_totext(" ", target));

    sub = name_prefix(&email, origin, &prefix);
    return (dns_name_totext(&prefix, sub, target));
}

static dns_result_t
fromwire_minfo(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 rmail;
        dns_name_t email;

    REQUIRE(type == 14);

    if (dns_decompress_edns(dctx) >= 1 || !dns_decompress_strict(dctx))
        dns_decompress_setmethods(dctx, DNS_COMPRESS_ALL);
    else
        dns_decompress_setmethods(dctx, DNS_COMPRESS_GLOBAL14);

    class = class;  /*unused*/

        dns_name_init(&rmail, NULL);
        dns_name_init(&email, NULL);

        RETERR(dns_name_fromwire(&rmail, source, dctx, downcase, target));
        return (dns_name_fromwire(&email, source, dctx, downcase, target));
}

static dns_result_t
towire_minfo(dns_rdata_t *rdata, dns_compress_t *cctx, isc_buffer_t *target) {
    isc_region_t region;
    dns_name_t rmail;
    dns_name_t email;

    REQUIRE(rdata->type == 14);

    if (dns_compress_getedns(cctx) >= 1)
        dns_compress_setmethods(cctx, DNS_COMPRESS_ALL);
    else
        dns_compress_setmethods(cctx, DNS_COMPRESS_GLOBAL14);

    dns_name_init(&rmail, NULL);
    dns_name_init(&email, NULL);

    dns_rdata_toregion(rdata, &region);

    dns_name_fromregion(&rmail, &region);
    isc_region_consume(&region, name_length(&rmail));

    RETERR(dns_name_towire(&rmail, cctx, target));

    dns_name_fromregion(&rmail, &region);
    isc_region_consume(&region, rmail.length);

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

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

    REQUIRE(rdata1->type == rdata2->type);
    REQUIRE(rdata1->class == rdata2->class);
    REQUIRE(rdata1->type == 14);

    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);

    result = dns_name_rdatacompare(&name1, &name2);
    if (result != 0)
        return (result);

    isc_region_consume(&region1, name_length(&name1));
    isc_region_consume(&region2, name_length(&name2));

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

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

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

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

    REQUIRE(type == 14);

    class = class;  /*unused*/

    source = source;
    target = target;

    return (DNS_R_NOTIMPLEMENTED);
}

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

    REQUIRE(rdata->type == 14);

    target = target;

    return (DNS_R_NOTIMPLEMENTED);
}
#endif  /* RDATA_GENERIC_MINFO_14_H */