diff options
Diffstat (limited to 'contrib/bind9/lib/dns/soa.c')
| -rw-r--r-- | contrib/bind9/lib/dns/soa.c | 147 |
1 files changed, 0 insertions, 147 deletions
diff --git a/contrib/bind9/lib/dns/soa.c b/contrib/bind9/lib/dns/soa.c deleted file mode 100644 index 1b58bfe..0000000 --- a/contrib/bind9/lib/dns/soa.c +++ /dev/null @@ -1,147 +0,0 @@ -/* - * Copyright (C) 2004, 2005, 2007, 2009 Internet Systems Consortium, Inc. ("ISC") - * Copyright (C) 2000, 2001 Internet Software Consortium. - * - * Permission to use, copy, modify, and/or 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 ISC DISCLAIMS ALL WARRANTIES WITH - * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY - * AND FITNESS. IN NO EVENT SHALL ISC 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: soa.c,v 1.12 2009/09/10 02:18:40 each Exp $ */ - -/*! \file */ - -#include <config.h> -#include <string.h> - -#include <isc/buffer.h> -#include <isc/util.h> - -#include <dns/rdata.h> -#include <dns/rdatastruct.h> -#include <dns/soa.h> - -static inline isc_uint32_t -decode_uint32(unsigned char *p) { - return ((p[0] << 24) + - (p[1] << 16) + - (p[2] << 8) + - (p[3] << 0)); -} - -static inline void -encode_uint32(isc_uint32_t val, unsigned char *p) { - p[0] = (isc_uint8_t)(val >> 24); - p[1] = (isc_uint8_t)(val >> 16); - p[2] = (isc_uint8_t)(val >> 8); - p[3] = (isc_uint8_t)(val >> 0); -} - -static isc_uint32_t -soa_get(dns_rdata_t *rdata, int offset) { - INSIST(rdata->type == dns_rdatatype_soa); - /* - * Locate the field within the SOA RDATA based - * on its position relative to the end of the data. - * - * This is a bit of a kludge, but the alternative approach of - * using dns_rdata_tostruct() and dns_rdata_fromstruct() would - * involve a lot of unnecessary work (like building domain - * names and allocating temporary memory) when all we really - * want to do is to get 32 bits of fixed-sized data. - */ - INSIST(rdata->length >= 20); - INSIST(offset >= 0 && offset <= 16); - return (decode_uint32(rdata->data + rdata->length - 20 + offset)); -} - -isc_result_t -dns_soa_buildrdata(dns_name_t *origin, dns_name_t *contact, - dns_rdataclass_t rdclass, - isc_uint32_t serial, isc_uint32_t refresh, - isc_uint32_t retry, isc_uint32_t expire, - isc_uint32_t minimum, unsigned char *buffer, - dns_rdata_t *rdata) { - dns_rdata_soa_t soa; - isc_buffer_t rdatabuf; - - REQUIRE(origin != NULL); - REQUIRE(contact != NULL); - - memset(buffer, 0, DNS_SOA_BUFFERSIZE); - isc_buffer_init(&rdatabuf, buffer, DNS_SOA_BUFFERSIZE); - - soa.common.rdtype = dns_rdatatype_soa; - soa.common.rdclass = rdclass; - soa.mctx = NULL; - soa.serial = serial; - soa.refresh = refresh; - soa.retry = retry; - soa.expire = expire; - soa.minimum = minimum; - dns_name_init(&soa.origin, NULL); - dns_name_clone(origin, &soa.origin); - dns_name_init(&soa.contact, NULL); - dns_name_clone(contact, &soa.contact); - - return (dns_rdata_fromstruct(rdata, rdclass, dns_rdatatype_soa, - &soa, &rdatabuf)); -} - -isc_uint32_t -dns_soa_getserial(dns_rdata_t *rdata) { - return soa_get(rdata, 0); -} -isc_uint32_t -dns_soa_getrefresh(dns_rdata_t *rdata) { - return soa_get(rdata, 4); -} -isc_uint32_t -dns_soa_getretry(dns_rdata_t *rdata) { - return soa_get(rdata, 8); -} -isc_uint32_t -dns_soa_getexpire(dns_rdata_t *rdata) { - return soa_get(rdata, 12); -} -isc_uint32_t -dns_soa_getminimum(dns_rdata_t *rdata) { - return soa_get(rdata, 16); -} - -static void -soa_set(dns_rdata_t *rdata, isc_uint32_t val, int offset) { - INSIST(rdata->type == dns_rdatatype_soa); - INSIST(rdata->length >= 20); - INSIST(offset >= 0 && offset <= 16); - encode_uint32(val, rdata->data + rdata->length - 20 + offset); -} - -void -dns_soa_setserial(isc_uint32_t val, dns_rdata_t *rdata) { - soa_set(rdata, val, 0); -} -void -dns_soa_setrefresh(isc_uint32_t val, dns_rdata_t *rdata) { - soa_set(rdata, val, 4); -} -void -dns_soa_setretry(isc_uint32_t val, dns_rdata_t *rdata) { - soa_set(rdata, val, 8); -} -void -dns_soa_setexpire(isc_uint32_t val, dns_rdata_t *rdata) { - soa_set(rdata, val, 12); -} -void -dns_soa_setminimum(isc_uint32_t val, dns_rdata_t *rdata) { - soa_set(rdata, val, 16); -} |
