mirror of
https://gitlab.isc.org/isc-projects/bind9
synced 2025-08-22 18:19:42 +00:00
a52b17d39b
as there is no further use of isc_task in BIND, this commit removes it, along with isc_taskmgr, isc_event, and all other related types. functions that accepted taskmgr as a parameter have been cleaned up. as a result of this change, some functions can no longer fail, so they've been changed to type void, and their callers have been updated accordingly. the tasks table has been removed from the statistics channel and the stats version has been updated. dns_dyndbctx has been changed to reference the loopmgr instead of taskmgr, and DNS_DYNDB_VERSION has been udpated as well.
85 lines
2.2 KiB
C
85 lines
2.2 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 <stdbool.h>
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#include <isc/mem.h>
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#include <isc/netaddr.h>
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#include <isc/result.h>
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#include <isc/string.h>
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#include <isc/util.h>
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#include <dns/byaddr.h>
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#include <dns/db.h>
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#include <dns/rdata.h>
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#include <dns/rdataset.h>
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#include <dns/rdatastruct.h>
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#include <dns/resolver.h>
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#include <dns/view.h>
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/*
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* XXXRTH We could use a static event...
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*/
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static char hex_digits[] = { '0', '1', '2', '3', '4', '5', '6', '7',
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'8', '9', 'a', 'b', 'c', 'd', 'e', 'f' };
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isc_result_t
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dns_byaddr_createptrname(const isc_netaddr_t *address, dns_name_t *name) {
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char textname[128];
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const unsigned char *bytes;
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int i;
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char *cp;
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isc_buffer_t buffer;
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unsigned int len;
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REQUIRE(address != NULL);
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/*
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* We create the text representation and then convert to a
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* dns_name_t. This is not maximally efficient, but it keeps all
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* of the knowledge of wire format in the dns_name_ routines.
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*/
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bytes = (const unsigned char *)(&address->type);
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if (address->family == AF_INET) {
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(void)snprintf(textname, sizeof(textname),
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"%u.%u.%u.%u.in-addr.arpa.",
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((unsigned int)bytes[3] & 0xffU),
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((unsigned int)bytes[2] & 0xffU),
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((unsigned int)bytes[1] & 0xffU),
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((unsigned int)bytes[0] & 0xffU));
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} else if (address->family == AF_INET6) {
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size_t remaining;
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cp = textname;
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for (i = 15; i >= 0; i--) {
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*cp++ = hex_digits[bytes[i] & 0x0f];
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*cp++ = '.';
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*cp++ = hex_digits[(bytes[i] >> 4) & 0x0f];
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*cp++ = '.';
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}
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remaining = sizeof(textname) - (cp - textname);
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strlcpy(cp, "ip6.arpa.", remaining);
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} else {
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return (ISC_R_NOTIMPLEMENTED);
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}
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len = (unsigned int)strlen(textname);
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isc_buffer_init(&buffer, textname, len);
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isc_buffer_add(&buffer, len);
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return (dns_name_fromtext(name, &buffer, dns_rootname, 0, NULL));
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}
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