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c70bb3deb5
* rbt node chains were sized to allow for bitstring labels, so they had 256 levels; but in the absence of bistrings, 128 is enough. * dns_byaddr_createptrname() had a redundant options argument, and a very outdated doc comment. * A number of comments referred to bitstring labels in a way that is no longer helpful. (A few informative comments remain.)
88 lines
1.9 KiB
C
88 lines
1.9 KiB
C
/*
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* Copyright (C) Internet Systems Consortium, Inc. ("ISC")
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*
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* SPDX-License-Identifier: MPL-2.0
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, you can obtain one at https://mozilla.org/MPL/2.0/.
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*
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* See the COPYRIGHT file distributed with this work for additional
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* information regarding copyright ownership.
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*/
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/*! \file */
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#include <isc/once.h>
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#include <isc/result.h>
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#include <isc/util.h>
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#include <dns/result.h>
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#define DNS_RESULT_ISRCODE(result) (DNS_R_NOERROR == ((result)&0xFFFF0000))
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dns_rcode_t
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dns_result_torcode(isc_result_t result) {
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dns_rcode_t rcode = dns_rcode_servfail;
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if (DNS_RESULT_ISRCODE(result)) {
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/*
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* Rcodes can't be bigger than 12 bits, which is why we
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* AND with 0xFFF instead of 0xFFFF.
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*/
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return ((dns_rcode_t)((result)&0xFFF));
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}
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/*
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* Try to supply an appropriate rcode.
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*/
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switch (result) {
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case ISC_R_SUCCESS:
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rcode = dns_rcode_noerror;
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break;
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case ISC_R_BADBASE64:
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case ISC_R_RANGE:
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case ISC_R_UNEXPECTEDEND:
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case DNS_R_BADAAAA:
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case DNS_R_BADCKSUM:
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case DNS_R_BADCLASS:
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case DNS_R_BADLABELTYPE:
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case DNS_R_BADPOINTER:
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case DNS_R_BADTTL:
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case DNS_R_BADZONE:
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case DNS_R_EXTRADATA:
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case DNS_R_LABELTOOLONG:
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case DNS_R_NOREDATA:
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case DNS_R_SYNTAX:
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case DNS_R_TEXTTOOLONG:
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case DNS_R_TOOMANYHOPS:
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case DNS_R_TSIGERRORSET:
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case DNS_R_UNKNOWN:
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case DNS_R_NAMETOOLONG:
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case DNS_R_OPTERR:
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rcode = dns_rcode_formerr;
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break;
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case DNS_R_DISALLOWED:
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rcode = dns_rcode_refused;
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break;
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case DNS_R_TSIGVERIFYFAILURE:
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case DNS_R_CLOCKSKEW:
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rcode = dns_rcode_notauth;
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break;
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default:
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rcode = dns_rcode_servfail;
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}
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return (rcode);
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}
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isc_result_t
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dns_result_fromrcode(dns_rcode_t rcode) {
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/*
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* Rcodes can't be bigger than 12 bits, which is why we
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* AND with 0xFFF instead of 0xFFFF.
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*/
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REQUIRE((rcode & 0xFFF) == rcode);
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return ((isc_result_t)rcode + DNS_R_NOERROR);
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}
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