rdata/in_1/a_1.c

	a_1.c revision a063ed5f51c4d0554c52d81c1562effb55ae8394
20a96edbf9894e327a99f21acf3571422df5c7b0Tinderbox User/*
bf8267aa453e5d2a735ed732a043b77a0b355b20Mark Andrews * Copyright (C) 1998, 1999, 2000  Internet Software Consortium.
bf8267aa453e5d2a735ed732a043b77a0b355b20Mark Andrews *
bf8267aa453e5d2a735ed732a043b77a0b355b20Mark Andrews * Permission to use, copy, modify, and distribute this software for any
bf8267aa453e5d2a735ed732a043b77a0b355b20Mark Andrews * purpose with or without fee is hereby granted, provided that the above
bf8267aa453e5d2a735ed732a043b77a0b355b20Mark Andrews * copyright notice and this permission notice appear in all copies.
bf8267aa453e5d2a735ed732a043b77a0b355b20Mark Andrews *
bf8267aa453e5d2a735ed732a043b77a0b355b20Mark Andrews * THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM DISCLAIMS
bf8267aa453e5d2a735ed732a043b77a0b355b20Mark Andrews * ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES
bf8267aa453e5d2a735ed732a043b77a0b355b20Mark Andrews * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE
bf8267aa453e5d2a735ed732a043b77a0b355b20Mark Andrews * CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
bf8267aa453e5d2a735ed732a043b77a0b355b20Mark Andrews * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
bf8267aa453e5d2a735ed732a043b77a0b355b20Mark Andrews * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
87708bde16713bc02ff2598f4a82f98c699a2f2dMark Andrews * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
f97d56e757b9a293ffbaa915ca4d792ae84ba85aTinderbox User * SOFTWARE.
f97d56e757b9a293ffbaa915ca4d792ae84ba85aTinderbox User */
87708bde16713bc02ff2598f4a82f98c699a2f2dMark Andrews
87708bde16713bc02ff2598f4a82f98c699a2f2dMark Andrews/* $Id: a_1.c,v 1.24 2000/03/17 00:50:14 bwelling Exp $ */
87708bde16713bc02ff2598f4a82f98c699a2f2dMark Andrews
87708bde16713bc02ff2598f4a82f98c699a2f2dMark Andrews/* Reviewed: Thu Mar 16 16:52:50 PST 2000 by bwelling */
87708bde16713bc02ff2598f4a82f98c699a2f2dMark Andrews
87708bde16713bc02ff2598f4a82f98c699a2f2dMark Andrews#ifndef RDATA_IN_1_A_1_C
afaa290bb6acc504e93a0adbf20b6dd6c64e6d63Vernon Schryver#define RDATA_IN_1_A_1_C
94315060c2b0d9deafabe72d6a0482405fd9d377Evan Hunt
421d4a06479e61fbdc35087f3c4abc9fe65ad72aEvan Hunt#include <string.h>
421d4a06479e61fbdc35087f3c4abc9fe65ad72aEvan Hunt
94315060c2b0d9deafabe72d6a0482405fd9d377Evan Hunt#include <isc/net.h>
421d4a06479e61fbdc35087f3c4abc9fe65ad72aEvan Hunt
3d751891410f9892ca1c1deba2f7d8556ae91b0cMark Andrewsstatic inline isc_result_t
ac5ed748602c890d596bed07b0b23b8b5f42b2f6Mark Andrewsfromtext_in_a(dns_rdataclass_t rdclass, dns_rdatatype_t type,
87708bde16713bc02ff2598f4a82f98c699a2f2dMark Andrews          isc_lex_t *lexer, dns_name_t *origin,
9fee08f655527a5dd849b171daeeee1dbbccca76Vernon Schryver          isc_boolean_t downcase, isc_buffer_t *target)
94315060c2b0d9deafabe72d6a0482405fd9d377Evan Hunt{
421d4a06479e61fbdc35087f3c4abc9fe65ad72aEvan Hunt    isc_token_t token;
87708bde16713bc02ff2598f4a82f98c699a2f2dMark Andrews    struct in_addr addr;
87708bde16713bc02ff2598f4a82f98c699a2f2dMark Andrews    isc_region_t region;
87708bde16713bc02ff2598f4a82f98c699a2f2dMark Andrews
87708bde16713bc02ff2598f4a82f98c699a2f2dMark Andrews    UNUSED(origin);
87708bde16713bc02ff2598f4a82f98c699a2f2dMark Andrews    UNUSED(downcase);
87708bde16713bc02ff2598f4a82f98c699a2f2dMark Andrews
87708bde16713bc02ff2598f4a82f98c699a2f2dMark Andrews    REQUIRE(type == 1);
87708bde16713bc02ff2598f4a82f98c699a2f2dMark Andrews    REQUIRE(rdclass == 1);
87708bde16713bc02ff2598f4a82f98c699a2f2dMark Andrews
87708bde16713bc02ff2598f4a82f98c699a2f2dMark Andrews    RETERR(gettoken(lexer, &token, isc_tokentype_string, ISC_FALSE));
87708bde16713bc02ff2598f4a82f98c699a2f2dMark Andrews
87708bde16713bc02ff2598f4a82f98c699a2f2dMark Andrews    if (inet_aton(token.value.as_pointer, &addr) != 1)
87708bde16713bc02ff2598f4a82f98c699a2f2dMark Andrews        return (DNS_R_BADDOTTEDQUAD);
87708bde16713bc02ff2598f4a82f98c699a2f2dMark Andrews    isc_buffer_available(target, &region);
87708bde16713bc02ff2598f4a82f98c699a2f2dMark Andrews    if (region.length < 4)
87708bde16713bc02ff2598f4a82f98c699a2f2dMark Andrews        return (DNS_R_NOSPACE);
94315060c2b0d9deafabe72d6a0482405fd9d377Evan Hunt    memcpy(region.base, &addr, 4);
94315060c2b0d9deafabe72d6a0482405fd9d377Evan Hunt    isc_buffer_add(target, 4);
94315060c2b0d9deafabe72d6a0482405fd9d377Evan Hunt    return (DNS_R_SUCCESS);
94315060c2b0d9deafabe72d6a0482405fd9d377Evan Hunt}
94315060c2b0d9deafabe72d6a0482405fd9d377Evan Hunt
94315060c2b0d9deafabe72d6a0482405fd9d377Evan Huntstatic inline isc_result_t
94315060c2b0d9deafabe72d6a0482405fd9d377Evan Hunttotext_in_a(dns_rdata_t *rdata, dns_rdata_textctx_t *tctx,
87708bde16713bc02ff2598f4a82f98c699a2f2dMark Andrews        isc_buffer_t *target)
afaa290bb6acc504e93a0adbf20b6dd6c64e6d63Vernon Schryver{
afaa290bb6acc504e93a0adbf20b6dd6c64e6d63Vernon Schryver    isc_region_t region;
9fee08f655527a5dd849b171daeeee1dbbccca76Vernon Schryver
421d4a06479e61fbdc35087f3c4abc9fe65ad72aEvan Hunt    UNUSED(tctx);
421d4a06479e61fbdc35087f3c4abc9fe65ad72aEvan Hunt
421d4a06479e61fbdc35087f3c4abc9fe65ad72aEvan Hunt    REQUIRE(rdata->type == 1);
421d4a06479e61fbdc35087f3c4abc9fe65ad72aEvan Hunt    REQUIRE(rdata->rdclass == 1);
421d4a06479e61fbdc35087f3c4abc9fe65ad72aEvan Hunt    REQUIRE(rdata->length == 4);
421d4a06479e61fbdc35087f3c4abc9fe65ad72aEvan Hunt
421d4a06479e61fbdc35087f3c4abc9fe65ad72aEvan Hunt    isc_buffer_available(target, &region);
421d4a06479e61fbdc35087f3c4abc9fe65ad72aEvan Hunt    if (inet_ntop(AF_INET, rdata->data,
421d4a06479e61fbdc35087f3c4abc9fe65ad72aEvan Hunt              (char *)region.base, region.length) == NULL)
421d4a06479e61fbdc35087f3c4abc9fe65ad72aEvan Hunt        return (DNS_R_NOSPACE);
afaa290bb6acc504e93a0adbf20b6dd6c64e6d63Vernon Schryver
afaa290bb6acc504e93a0adbf20b6dd6c64e6d63Vernon Schryver    isc_buffer_add(target, strlen((char *)region.base));
9fee08f655527a5dd849b171daeeee1dbbccca76Vernon Schryver    return (DNS_R_SUCCESS);
9fee08f655527a5dd849b171daeeee1dbbccca76Vernon Schryver}
87708bde16713bc02ff2598f4a82f98c699a2f2dMark Andrews
9fee08f655527a5dd849b171daeeee1dbbccca76Vernon Schryverstatic inline isc_result_t
9fee08f655527a5dd849b171daeeee1dbbccca76Vernon Schryverfromwire_in_a(dns_rdataclass_t rdclass, dns_rdatatype_t type,
9fee08f655527a5dd849b171daeeee1dbbccca76Vernon Schryver          isc_buffer_t *source, dns_decompress_t *dctx,
9fee08f655527a5dd849b171daeeee1dbbccca76Vernon Schryver          isc_boolean_t downcase, isc_buffer_t *target)
9fee08f655527a5dd849b171daeeee1dbbccca76Vernon Schryver{
88112d5fcb6b9e1d0f80105a9d2a6f09440c2401Mark Andrews    isc_region_t sregion;
9fee08f655527a5dd849b171daeeee1dbbccca76Vernon Schryver    isc_region_t tregion;
9fee08f655527a5dd849b171daeeee1dbbccca76Vernon Schryver
9fee08f655527a5dd849b171daeeee1dbbccca76Vernon Schryver    UNUSED(dctx);
87708bde16713bc02ff2598f4a82f98c699a2f2dMark Andrews    UNUSED(downcase);
87708bde16713bc02ff2598f4a82f98c699a2f2dMark Andrews
87708bde16713bc02ff2598f4a82f98c699a2f2dMark Andrews    REQUIRE(type == 1);
87708bde16713bc02ff2598f4a82f98c699a2f2dMark Andrews    REQUIRE(rdclass == 1);
94315060c2b0d9deafabe72d6a0482405fd9d377Evan Hunt
87708bde16713bc02ff2598f4a82f98c699a2f2dMark Andrews    isc_buffer_active(source, &sregion);
87708bde16713bc02ff2598f4a82f98c699a2f2dMark Andrews    isc_buffer_available(target, &tregion);
87708bde16713bc02ff2598f4a82f98c699a2f2dMark Andrews    if (sregion.length < 4)
9fee08f655527a5dd849b171daeeee1dbbccca76Vernon Schryver        return (DNS_R_UNEXPECTEDEND);
9fee08f655527a5dd849b171daeeee1dbbccca76Vernon Schryver    if (tregion.length < 4)
9fee08f655527a5dd849b171daeeee1dbbccca76Vernon Schryver        return (DNS_R_NOSPACE);
421d4a06479e61fbdc35087f3c4abc9fe65ad72aEvan Hunt
421d4a06479e61fbdc35087f3c4abc9fe65ad72aEvan Hunt    memcpy(tregion.base, sregion.base, 4);
421d4a06479e61fbdc35087f3c4abc9fe65ad72aEvan Hunt    isc_buffer_forward(source, 4);
9fee08f655527a5dd849b171daeeee1dbbccca76Vernon Schryver    isc_buffer_add(target, 4);
421d4a06479e61fbdc35087f3c4abc9fe65ad72aEvan Hunt    return (DNS_R_SUCCESS);
9fee08f655527a5dd849b171daeeee1dbbccca76Vernon Schryver}
421d4a06479e61fbdc35087f3c4abc9fe65ad72aEvan Hunt
9fee08f655527a5dd849b171daeeee1dbbccca76Vernon Schryverstatic inline isc_result_t
9fee08f655527a5dd849b171daeeee1dbbccca76Vernon Schryvertowire_in_a(dns_rdata_t *rdata, dns_compress_t *cctx, isc_buffer_t *target) {
9fee08f655527a5dd849b171daeeee1dbbccca76Vernon Schryver    isc_region_t region;
9fee08f655527a5dd849b171daeeee1dbbccca76Vernon Schryver
afaa290bb6acc504e93a0adbf20b6dd6c64e6d63Vernon Schryver    UNUSED(cctx);
afaa290bb6acc504e93a0adbf20b6dd6c64e6d63Vernon Schryver
afaa290bb6acc504e93a0adbf20b6dd6c64e6d63Vernon Schryver    REQUIRE(rdata->type == 1);
afaa290bb6acc504e93a0adbf20b6dd6c64e6d63Vernon Schryver    REQUIRE(rdata->rdclass == 1);
afaa290bb6acc504e93a0adbf20b6dd6c64e6d63Vernon Schryver
afaa290bb6acc504e93a0adbf20b6dd6c64e6d63Vernon Schryver    isc_buffer_available(target, &region);
afaa290bb6acc504e93a0adbf20b6dd6c64e6d63Vernon Schryver    if (region.length < rdata->length)
afaa290bb6acc504e93a0adbf20b6dd6c64e6d63Vernon Schryver        return (DNS_R_NOSPACE);
afaa290bb6acc504e93a0adbf20b6dd6c64e6d63Vernon Schryver    memcpy(region.base, rdata->data, rdata->length);
afaa290bb6acc504e93a0adbf20b6dd6c64e6d63Vernon Schryver    isc_buffer_add(target, 4);
afaa290bb6acc504e93a0adbf20b6dd6c64e6d63Vernon Schryver    return (DNS_R_SUCCESS);
afaa290bb6acc504e93a0adbf20b6dd6c64e6d63Vernon Schryver}
afaa290bb6acc504e93a0adbf20b6dd6c64e6d63Vernon Schryver
afaa290bb6acc504e93a0adbf20b6dd6c64e6d63Vernon Schryverstatic inline int
afaa290bb6acc504e93a0adbf20b6dd6c64e6d63Vernon Schryvercompare_in_a(dns_rdata_t *rdata1, dns_rdata_t *rdata2) {
afaa290bb6acc504e93a0adbf20b6dd6c64e6d63Vernon Schryver    isc_region_t r1;
afaa290bb6acc504e93a0adbf20b6dd6c64e6d63Vernon Schryver    isc_region_t r2;
afaa290bb6acc504e93a0adbf20b6dd6c64e6d63Vernon Schryver
afaa290bb6acc504e93a0adbf20b6dd6c64e6d63Vernon Schryver    REQUIRE(rdata1->type == rdata2->type);
afaa290bb6acc504e93a0adbf20b6dd6c64e6d63Vernon Schryver    REQUIRE(rdata1->rdclass == rdata2->type);
9fee08f655527a5dd849b171daeeee1dbbccca76Vernon Schryver    REQUIRE(rdata1->type == 1);
9fee08f655527a5dd849b171daeeee1dbbccca76Vernon Schryver    REQUIRE(rdata1->rdclass == 1);
9fee08f655527a5dd849b171daeeee1dbbccca76Vernon Schryver
afaa290bb6acc504e93a0adbf20b6dd6c64e6d63Vernon Schryver    dns_rdata_toregion(rdata1, &r1);
9fee08f655527a5dd849b171daeeee1dbbccca76Vernon Schryver    dns_rdata_toregion(rdata2, &r2);
afaa290bb6acc504e93a0adbf20b6dd6c64e6d63Vernon Schryver    return (compare_region(&r1, &r2));
afaa290bb6acc504e93a0adbf20b6dd6c64e6d63Vernon Schryver}
afaa290bb6acc504e93a0adbf20b6dd6c64e6d63Vernon Schryver
afaa290bb6acc504e93a0adbf20b6dd6c64e6d63Vernon Schryverstatic inline isc_result_t
afaa290bb6acc504e93a0adbf20b6dd6c64e6d63Vernon Schryverfromstruct_in_a(dns_rdataclass_t rdclass, dns_rdatatype_t type, void *source,
afaa290bb6acc504e93a0adbf20b6dd6c64e6d63Vernon Schryver            isc_buffer_t *target)
9fee08f655527a5dd849b171daeeee1dbbccca76Vernon Schryver{
afaa290bb6acc504e93a0adbf20b6dd6c64e6d63Vernon Schryver    UNUSED(source);
afaa290bb6acc504e93a0adbf20b6dd6c64e6d63Vernon Schryver    UNUSED(target);
afaa290bb6acc504e93a0adbf20b6dd6c64e6d63Vernon Schryver
9fee08f655527a5dd849b171daeeee1dbbccca76Vernon Schryver    REQUIRE(type == 1);
9fee08f655527a5dd849b171daeeee1dbbccca76Vernon Schryver    REQUIRE(rdclass == 1);
9fee08f655527a5dd849b171daeeee1dbbccca76Vernon Schryver
94315060c2b0d9deafabe72d6a0482405fd9d377Evan Hunt    return (DNS_R_NOTIMPLEMENTED);
421d4a06479e61fbdc35087f3c4abc9fe65ad72aEvan Hunt}
421d4a06479e61fbdc35087f3c4abc9fe65ad72aEvan Hunt
421d4a06479e61fbdc35087f3c4abc9fe65ad72aEvan Huntstatic inline isc_result_t
421d4a06479e61fbdc35087f3c4abc9fe65ad72aEvan Hunttostruct_in_a(dns_rdata_t *rdata, void *target, isc_mem_t *mctx) {
421d4a06479e61fbdc35087f3c4abc9fe65ad72aEvan Hunt    dns_rdata_in_a_t *a = target;
421d4a06479e61fbdc35087f3c4abc9fe65ad72aEvan Hunt    isc_uint32_t n;
421d4a06479e61fbdc35087f3c4abc9fe65ad72aEvan Hunt    isc_region_t region;
421d4a06479e61fbdc35087f3c4abc9fe65ad72aEvan Hunt
421d4a06479e61fbdc35087f3c4abc9fe65ad72aEvan Hunt    UNUSED(mctx);
421d4a06479e61fbdc35087f3c4abc9fe65ad72aEvan Hunt
421d4a06479e61fbdc35087f3c4abc9fe65ad72aEvan Hunt    REQUIRE(rdata->type == 1);
94315060c2b0d9deafabe72d6a0482405fd9d377Evan Hunt    REQUIRE(rdata->rdclass == 1);
421d4a06479e61fbdc35087f3c4abc9fe65ad72aEvan Hunt
94315060c2b0d9deafabe72d6a0482405fd9d377Evan Hunt    a->common.rdclass = rdata->rdclass;
94315060c2b0d9deafabe72d6a0482405fd9d377Evan Hunt    a->common.rdtype = rdata->type;
3a26e75e3c475b6f2f34716fa2847bf015db57c5Mark Andrews    ISC_LINK_INIT(&a->common, link);
3a26e75e3c475b6f2f34716fa2847bf015db57c5Mark Andrews
3a26e75e3c475b6f2f34716fa2847bf015db57c5Mark Andrews    dns_rdata_toregion(rdata, &region);
3a26e75e3c475b6f2f34716fa2847bf015db57c5Mark Andrews    n = uint32_fromregion(&region);
3a26e75e3c475b6f2f34716fa2847bf015db57c5Mark Andrews    a->in_addr.s_addr = htonl(n);
536098609270345606f4e442064bd15b19d1768eMark Andrews
3a26e75e3c475b6f2f34716fa2847bf015db57c5Mark Andrews    return (DNS_R_SUCCESS);
3a26e75e3c475b6f2f34716fa2847bf015db57c5Mark Andrews}
3a26e75e3c475b6f2f34716fa2847bf015db57c5Mark Andrews
3a26e75e3c475b6f2f34716fa2847bf015db57c5Mark Andrewsstatic inline void
3a26e75e3c475b6f2f34716fa2847bf015db57c5Mark Andrewsfreestruct_in_a(void *source) {
3a26e75e3c475b6f2f34716fa2847bf015db57c5Mark Andrews    REQUIRE(source != NULL);
3a26e75e3c475b6f2f34716fa2847bf015db57c5Mark Andrews    REQUIRE(ISC_FALSE); /*XXX*/
3a26e75e3c475b6f2f34716fa2847bf015db57c5Mark Andrews
3a26e75e3c475b6f2f34716fa2847bf015db57c5Mark Andrews}
3a26e75e3c475b6f2f34716fa2847bf015db57c5Mark Andrews
3a26e75e3c475b6f2f34716fa2847bf015db57c5Mark Andrewsstatic inline isc_result_t
9fee08f655527a5dd849b171daeeee1dbbccca76Vernon Schryveradditionaldata_in_a(dns_rdata_t *rdata, dns_additionaldatafunc_t add,
9fee08f655527a5dd849b171daeeee1dbbccca76Vernon Schryver            void *arg)
9fee08f655527a5dd849b171daeeee1dbbccca76Vernon Schryver{
94315060c2b0d9deafabe72d6a0482405fd9d377Evan Hunt    REQUIRE(rdata->type == 1);
9fee08f655527a5dd849b171daeeee1dbbccca76Vernon Schryver    REQUIRE(rdata->rdclass == 1);
9fee08f655527a5dd849b171daeeee1dbbccca76Vernon Schryver
9fee08f655527a5dd849b171daeeee1dbbccca76Vernon Schryver    UNUSED(add);
9fee08f655527a5dd849b171daeeee1dbbccca76Vernon Schryver    UNUSED(arg);
9fee08f655527a5dd849b171daeeee1dbbccca76Vernon Schryver
9fee08f655527a5dd849b171daeeee1dbbccca76Vernon Schryver    return (DNS_R_SUCCESS);
9fee08f655527a5dd849b171daeeee1dbbccca76Vernon Schryver}
9fee08f655527a5dd849b171daeeee1dbbccca76Vernon Schryver
9fee08f655527a5dd849b171daeeee1dbbccca76Vernon Schryverstatic inline isc_result_t
9fee08f655527a5dd849b171daeeee1dbbccca76Vernon Schryverdigest_in_a(dns_rdata_t *rdata, dns_digestfunc_t digest, void *arg) {
9fee08f655527a5dd849b171daeeee1dbbccca76Vernon Schryver    isc_region_t r;
9fee08f655527a5dd849b171daeeee1dbbccca76Vernon Schryver
94315060c2b0d9deafabe72d6a0482405fd9d377Evan Hunt    REQUIRE(rdata->type == 1);
9fee08f655527a5dd849b171daeeee1dbbccca76Vernon Schryver    REQUIRE(rdata->rdclass == 1);
9fee08f655527a5dd849b171daeeee1dbbccca76Vernon Schryver
9fee08f655527a5dd849b171daeeee1dbbccca76Vernon Schryver    dns_rdata_toregion(rdata, &r);
afaa290bb6acc504e93a0adbf20b6dd6c64e6d63Vernon Schryver
9fee08f655527a5dd849b171daeeee1dbbccca76Vernon Schryver    return ((digest)(arg, &r));
9fee08f655527a5dd849b171daeeee1dbbccca76Vernon Schryver}
9fee08f655527a5dd849b171daeeee1dbbccca76Vernon Schryver
94315060c2b0d9deafabe72d6a0482405fd9d377Evan Hunt#endif  /* RDATA_IN_1_A_1_C */
94315060c2b0d9deafabe72d6a0482405fd9d377Evan Hunt