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C++ dns_rdataset_next函数代码示例

原作者: [db:作者] 来自: [db:来源] 收藏 邀请

本文整理汇总了C++中dns_rdataset_next函数的典型用法代码示例。如果您正苦于以下问题：C++ dns_rdataset_next函数的具体用法？C++ dns_rdataset_next怎么用？C++ dns_rdataset_next使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。



在下文中一共展示了dns_rdataset_next函数的20个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于我们的系统推荐出更棒的C++代码示例。

示例1: setresign

static isc_stdtime_t
setresign(dns_rdataset_t *modified) {
	dns_rdata_t rdata = DNS_RDATA_INIT;
	dns_rdata_rrsig_t sig;
	isc_stdtime_t when;
	isc_result_t result;

	result = dns_rdataset_first(modified);
	INSIST(result == ISC_R_SUCCESS);
	dns_rdataset_current(modified, &rdata);
	(void)dns_rdata_tostruct(&rdata, &sig, NULL);
	if ((rdata.flags & DNS_RDATA_OFFLINE) != 0)
		when = 0;
	else
		when = sig.timeexpire;
	dns_rdata_reset(&rdata);

	result = dns_rdataset_next(modified);
	while (result == ISC_R_SUCCESS) {
		dns_rdataset_current(modified, &rdata);
		(void)dns_rdata_tostruct(&rdata, &sig, NULL);
		if ((rdata.flags & DNS_RDATA_OFFLINE) != 0) {
			goto next_rr;
		}
		if (when == 0 || sig.timeexpire < when)
			when = sig.timeexpire;
 next_rr:
		dns_rdata_reset(&rdata);
		result = dns_rdataset_next(modified);
	}
	INSIST(result == ISC_R_NOMORE);
	return (when);
}
开发者ID:ajinkya93，项目名称:netbsd-src，代码行数:33，代码来源:diff.c


示例2: dns_rdataset_additionaldata

isc_result_t
dns_rdataset_additionaldata(dns_rdataset_t *rdataset,
			    dns_additionaldatafunc_t add, void *arg)
{
	dns_rdata_t rdata = DNS_RDATA_INIT;
	isc_result_t result;

	/*
	 * For each rdata in rdataset, call 'add' for each name and type in the
	 * rdata which is subject to additional section processing.
	 */

	REQUIRE(DNS_RDATASET_VALID(rdataset));
	REQUIRE((rdataset->attributes & DNS_RDATASETATTR_QUESTION) == 0);

	result = dns_rdataset_first(rdataset);
	if (result != ISC_R_SUCCESS)
		return (result);

	do {
		dns_rdataset_current(rdataset, &rdata);
		result = dns_rdata_additionaldata(&rdata, add, arg);
		if (result == ISC_R_SUCCESS)
			result = dns_rdataset_next(rdataset);
		dns_rdata_reset(&rdata);
	} while (result == ISC_R_SUCCESS);

	if (result != ISC_R_NOMORE)
		return (result);

	return (ISC_R_SUCCESS);
}
开发者ID:zhongliangkang，项目名称:bind9.9.4，代码行数:32，代码来源:rdataset.c


示例3: fill_array

static isc_result_t
fill_array(int *pos, dns_rdataset_t *rdataset,
	   int size, unsigned char **rdatas, lwres_uint16_t *rdatalen)
{
	dns_rdata_t rdata;
	isc_result_t result;
	isc_region_t r;

	UNUSED(size);

	dns_rdata_init(&rdata);
	for (result = dns_rdataset_first(rdataset);
	     result == ISC_R_SUCCESS;
	     result = dns_rdataset_next(rdataset))
	{
		INSIST(*pos < size);
		dns_rdataset_current(rdataset, &rdata);
		dns_rdata_toregion(&rdata, &r);
		rdatas[*pos] = r.base;
		rdatalen[*pos] = r.length;
		dns_rdata_reset(&rdata);
		(*pos)++;
	}
	if (result == ISC_R_NOMORE)
		result = ISC_R_SUCCESS;
	return (result);
}
开发者ID:VargMon，项目名称:netbsd-cvs-mirror，代码行数:27，代码来源:lwdgrbn.c


示例4: dns_nsec_nseconly

isc_result_t
dns_nsec_nseconly(dns_db_t *db, dns_dbversion_t *version,
		  isc_boolean_t *answer)
{
	dns_dbnode_t *node = NULL;
	dns_rdataset_t rdataset;
	dns_rdata_dnskey_t dnskey;
	isc_result_t result;

	REQUIRE(answer != NULL);

	dns_rdataset_init(&rdataset);

	result = dns_db_getoriginnode(db, &node);
	if (result != ISC_R_SUCCESS)
		return (result);

	result = dns_db_findrdataset(db, node, version, dns_rdatatype_dnskey,
				     0, 0, &rdataset, NULL);
	dns_db_detachnode(db, &node);

	if (result == ISC_R_NOTFOUND) {
		*answer = ISC_FALSE;
		return (ISC_R_SUCCESS);
	}
	if (result != ISC_R_SUCCESS)
		return (result);
	for (result = dns_rdataset_first(&rdataset);
	     result == ISC_R_SUCCESS;
	     result = dns_rdataset_next(&rdataset)) {
		dns_rdata_t rdata = DNS_RDATA_INIT;

		dns_rdataset_current(&rdataset, &rdata);
		result = dns_rdata_tostruct(&rdata, &dnskey, NULL);
		RUNTIME_CHECK(result == ISC_R_SUCCESS);

		if (dnskey.algorithm == DST_ALG_RSAMD5 ||
		    dnskey.algorithm == DST_ALG_RSASHA1 ||
		    dnskey.algorithm == DST_ALG_DSA ||
		    dnskey.algorithm == DST_ALG_ECC)
			break;
	}
	dns_rdataset_disassociate(&rdataset);
	if (result == ISC_R_SUCCESS)
		*answer = ISC_TRUE;
	if (result == ISC_R_NOMORE) {
		*answer = ISC_FALSE;
		result = ISC_R_SUCCESS;
	}
	return (result);
}
开发者ID:mnagy，项目名称:bind-dynamic_db，代码行数:51，代码来源:nsec.c


示例5: db_rr_iterator_next

static isc_result_t
db_rr_iterator_next(db_rr_iterator_t *it) {
	if (it->result != ISC_R_SUCCESS)
		return (it->result);

	INSIST(it->dbit != NULL);
	INSIST(it->node != NULL);
	INSIST(it->rdatasetit != NULL);

	it->result = dns_rdataset_next(&it->rdataset);
	if (it->result == ISC_R_NOMORE) {
		dns_rdataset_disassociate(&it->rdataset);
		it->result = dns_rdatasetiter_next(it->rdatasetit);
		/*
		 * The while loop body is executed more than once
		 * only when an empty dbnode needs to be skipped.
		 */
		while (it->result == ISC_R_NOMORE) {
			dns_rdatasetiter_destroy(&it->rdatasetit);
			dns_db_detachnode(it->db, &it->node);
			it->result = dns_dbiterator_next(it->dbit);
			if (it->result == ISC_R_NOMORE) {
				/* We are at the end of the entire database. */
				return (it->result);
			}
			if (it->result != ISC_R_SUCCESS)
				return (it->result);
			it->result = dns_dbiterator_current(it->dbit,
				    &it->node,
				    dns_fixedname_name(&it->fixedname));
			if (it->result != ISC_R_SUCCESS)
				return (it->result);
			it->result = dns_db_allrdatasets(it->db, it->node,
					 it->ver, it->now,
					 &it->rdatasetit);
			if (it->result != ISC_R_SUCCESS)
				return (it->result);
			it->result = dns_rdatasetiter_first(it->rdatasetit);
		}
		if (it->result != ISC_R_SUCCESS)
			return (it->result);
		dns_rdatasetiter_current(it->rdatasetit, &it->rdataset);
		it->rdataset.attributes |= DNS_RDATASETATTR_LOADORDER;
		it->result = dns_rdataset_first(&it->rdataset);
		if (it->result != ISC_R_SUCCESS)
			return (it->result);
	}
	return (it->result);
}
开发者ID:mnagy，项目名称:bind-dynamic_db，代码行数:49，代码来源:xfrout.c


示例6: dns_rriterator_next

isc_result_t
dns_rriterator_next(dns_rriterator_t *it) {
	REQUIRE(VALID_RRITERATOR(it));
	if (it->result != ISC_R_SUCCESS)
		return (it->result);

	INSIST(it->dbit != NULL);
	INSIST(it->node != NULL);
	INSIST(it->rdatasetit != NULL);

	it->result = dns_rdataset_next(&it->rdataset);
	if (it->result == ISC_R_NOMORE)
		return (dns_rriterator_nextrrset(it));
	return (it->result);
}
开发者ID:w796933，项目名称:bind99damp，代码行数:15，代码来源:rriterator.c


示例7: inrrset

static isc_boolean_t
inrrset(dns_rdataset_t *rrset, dns_rdata_t *rdata) {
	isc_result_t result;
	dns_rdata_t current = DNS_RDATA_INIT;

	result = dns_rdataset_first(rrset);
	while (result == ISC_R_SUCCESS) {
		dns_rdataset_current(rrset, &current);
		if (dns_rdata_compare(rdata, &current) == 0)
			return (ISC_TRUE);
		dns_rdata_reset(&current);
		result = dns_rdataset_next(rrset);
	}
	return (ISC_FALSE);
}
开发者ID:execunix，项目名称:vinos，代码行数:15，代码来源:rootns.c


示例8: short_answer

/*%
 * short_form message print handler.  Calls above say_message()
 */
static isc_result_t
short_answer(dns_message_t *msg, dns_messagetextflag_t flags,
	     isc_buffer_t *buf, dig_query_t *query)
{
	dns_name_t *name;
	dns_rdataset_t *rdataset;
	isc_result_t result, loopresult;
	dns_name_t empty_name;
	dns_rdata_t rdata = DNS_RDATA_INIT;

	UNUSED(flags);

	dns_name_init(&empty_name, NULL);
	result = dns_message_firstname(msg, DNS_SECTION_ANSWER);
	if (result == ISC_R_NOMORE)
		return (ISC_R_SUCCESS);
	else if (result != ISC_R_SUCCESS)
		return (result);

	for (;;) {
		name = NULL;
		dns_message_currentname(msg, DNS_SECTION_ANSWER, &name);

		for (rdataset = ISC_LIST_HEAD(name->list);
		     rdataset != NULL;
		     rdataset = ISC_LIST_NEXT(rdataset, link)) {
			loopresult = dns_rdataset_first(rdataset);
			while (loopresult == ISC_R_SUCCESS) {
				dns_rdataset_current(rdataset, &rdata);
				result = say_message(&rdata, query,
						     buf);
				if (result == ISC_R_NOSPACE)
					return (result);
				check_result(result, "say_message");
				loopresult = dns_rdataset_next(rdataset);
				dns_rdata_reset(&rdata);
			}
		}
		result = dns_message_nextname(msg, DNS_SECTION_ANSWER);
		if (result == ISC_R_NOMORE)
			break;
		else if (result != ISC_R_SUCCESS)
			return (result);
	}

	return (ISC_R_SUCCESS);
}
开发者ID:Gradwell，项目名称:bind9，代码行数:50，代码来源:dig.c


示例9: copy_rdataset

static inline isc_result_t
copy_rdataset(dns_rdataset_t *rdataset, isc_buffer_t *buffer) {
	isc_result_t result;
	unsigned int count;
	isc_region_t ar, r;
	dns_rdata_t rdata = DNS_RDATA_INIT;

	/*
	 * Copy the rdataset count to the buffer.
	 */
	isc_buffer_availableregion(buffer, &ar);
	if (ar.length < 2)
		return (ISC_R_NOSPACE);
	count = dns_rdataset_count(rdataset);
	INSIST(count <= 65535);
	isc_buffer_putuint16(buffer, (isc_uint16_t)count);

	result = dns_rdataset_first(rdataset);
	while (result == ISC_R_SUCCESS) {
		dns_rdataset_current(rdataset, &rdata);
		dns_rdata_toregion(&rdata, &r);
		INSIST(r.length <= 65535);
		isc_buffer_availableregion(buffer, &ar);
		if (ar.length < 2)
			return (ISC_R_NOSPACE);
		/*
		 * Copy the rdata length to the buffer.
		 */
		isc_buffer_putuint16(buffer, (isc_uint16_t)r.length);
		/*
		 * Copy the rdata to the buffer.
		 */
		result = isc_buffer_copyregion(buffer, &r);
		if (result != ISC_R_SUCCESS)
			return (result);
		dns_rdata_reset(&rdata);
		result = dns_rdataset_next(rdataset);
	}
	if (result != ISC_R_NOMORE)
		return (result);

	return (ISC_R_SUCCESS);
}
开发者ID:chris-wood，项目名称:bind-prime，代码行数:43，代码来源:ncache.c


示例10: dns_db_getsoaserial

isc_result_t
dns_db_getsoaserial(dns_db_t *db, dns_dbversion_t *ver, isc_uint32_t *serialp)
{
	isc_result_t result;
	dns_dbnode_t *node = NULL;
	dns_rdataset_t rdataset;
	dns_rdata_t rdata = DNS_RDATA_INIT;
	isc_buffer_t buffer;

	REQUIRE(dns_db_iszone(db) || dns_db_isstub(db));

	result = dns_db_findnode(db, dns_db_origin(db), ISC_FALSE, &node);
	if (result != ISC_R_SUCCESS)
		return (result);

	dns_rdataset_init(&rdataset);
	result = dns_db_findrdataset(db, node, ver, dns_rdatatype_soa, 0,
				     (isc_stdtime_t)0, &rdataset, NULL);
	if (result != ISC_R_SUCCESS)
		goto freenode;

	result = dns_rdataset_first(&rdataset);
	if (result != ISC_R_SUCCESS)
		goto freerdataset;
	dns_rdataset_current(&rdataset, &rdata);
	result = dns_rdataset_next(&rdataset);
	INSIST(result == ISC_R_NOMORE);

	INSIST(rdata.length > 20);
	isc_buffer_init(&buffer, rdata.data, rdata.length);
	isc_buffer_add(&buffer, rdata.length);
	isc_buffer_forward(&buffer, rdata.length - 20);
	*serialp = isc_buffer_getuint32(&buffer);

	result = ISC_R_SUCCESS;

 freerdataset:
	dns_rdataset_disassociate(&rdataset);

 freenode:
	dns_db_detachnode(db, &node);
	return (result);
}
开发者ID:VargMon，项目名称:netbsd-cvs-mirror，代码行数:43，代码来源:db.c


示例11: in_rootns

static isc_result_t
in_rootns(dns_rdataset_t *rootns, dns_name_t *name) {
	isc_result_t result;
	dns_rdata_t rdata = DNS_RDATA_INIT;
	dns_rdata_ns_t ns;
	
	if (!dns_rdataset_isassociated(rootns))
		return (ISC_R_NOTFOUND);

	result = dns_rdataset_first(rootns);
	while (result == ISC_R_SUCCESS) {
		dns_rdataset_current(rootns, &rdata);
		result = dns_rdata_tostruct(&rdata, &ns, NULL);
		if (result != ISC_R_SUCCESS)
			return (result);
		if (dns_name_compare(name, &ns.name) == 0)
			return (ISC_R_SUCCESS);
		result = dns_rdataset_next(rootns);
	}
	if (result == ISC_R_NOMORE)
		result = ISC_R_NOTFOUND;
	return (result);
}
开发者ID:miettal，项目名称:armadillo420_standard，代码行数:23，代码来源:rootns.c


示例12: rdataset_to_sortedarray

/*
 * Sort the rdataset into an array.
 */
static isc_result_t
rdataset_to_sortedarray(dns_rdataset_t *set, isc_mem_t *mctx,
			dns_rdata_t **rdata, int *nrdata)
{
	isc_result_t ret;
	int i = 0, n;
	dns_rdata_t *data;

	n = dns_rdataset_count(set);

	data = isc_mem_get(mctx, n * sizeof(dns_rdata_t));
	if (data == NULL)
		return (ISC_R_NOMEMORY);

	ret = dns_rdataset_first(set);
	if (ret != ISC_R_SUCCESS) {
		isc_mem_put(mctx, data, n * sizeof(dns_rdata_t));
		return (ret);
	}

	/*
	 * Put them in the array.
	 */
	do {
		dns_rdata_init(&data[i]);
		dns_rdataset_current(set, &data[i++]);
	} while (dns_rdataset_next(set) == ISC_R_SUCCESS);

	/*
	 * Sort the array.
	 */
	qsort(data, n, sizeof(dns_rdata_t), rdata_compare_wrapper);
	*rdata = data;
	*nrdata = n;
	return (ISC_R_SUCCESS);
}
开发者ID:OPSF，项目名称:uClinux，代码行数:39，代码来源:dnssec.c


示例13: dns_ncache_getsigrdataset

isc_result_t
dns_ncache_getsigrdataset(dns_rdataset_t *ncacherdataset, dns_name_t *name,
			  dns_rdatatype_t covers, dns_rdataset_t *rdataset)
{
	dns_name_t tname;
	dns_rdata_rrsig_t rrsig;
	dns_rdata_t rdata = DNS_RDATA_INIT;
	dns_rdataset_t clone;
	dns_rdatatype_t type;
	dns_trust_t trust = dns_trust_none;
	isc_buffer_t source;
	isc_region_t remaining, sigregion;
	isc_result_t result;
	unsigned char *raw;
	unsigned int count;

	REQUIRE(ncacherdataset != NULL);
	REQUIRE(ncacherdataset->type == 0);
	REQUIRE((ncacherdataset->attributes & DNS_RDATASETATTR_NEGATIVE) != 0);
	REQUIRE(name != NULL);
	REQUIRE(!dns_rdataset_isassociated(rdataset));

	dns_rdataset_init(&clone);
	dns_rdataset_clone(ncacherdataset, &clone);
	result = dns_rdataset_first(&clone);
	while (result == ISC_R_SUCCESS) {
		dns_rdataset_current(&clone, &rdata);
		isc_buffer_init(&source, rdata.data, rdata.length);
		isc_buffer_add(&source, rdata.length);
		dns_name_init(&tname, NULL);
		isc_buffer_remainingregion(&source, &remaining);
		dns_name_fromregion(&tname, &remaining);
		INSIST(remaining.length >= tname.length);
		isc_buffer_forward(&source, tname.length);
		isc_region_consume(&remaining, tname.length);

		INSIST(remaining.length >= 2);
		type = isc_buffer_getuint16(&source);
		isc_region_consume(&remaining, 2);

		if (type != dns_rdatatype_rrsig ||
		    !dns_name_equal(&tname, name)) {
			result = dns_rdataset_next(&clone);
			dns_rdata_reset(&rdata);
			continue;
		}

		INSIST(remaining.length >= 1);
		trust = isc_buffer_getuint8(&source);
		INSIST(trust <= dns_trust_ultimate);
		isc_region_consume(&remaining, 1);

		raw = remaining.base;
		count = raw[0] * 256 + raw[1];
		INSIST(count > 0);
		raw += 2;
		sigregion.length = raw[0] * 256 + raw[1];
		raw += 2;
		sigregion.base = raw;
		dns_rdata_reset(&rdata);
		dns_rdata_fromregion(&rdata, rdataset->rdclass,
				     dns_rdatatype_rrsig, &sigregion);
		(void)dns_rdata_tostruct(&rdata, &rrsig, NULL);
		if (rrsig.covered == covers) {
			isc_buffer_remainingregion(&source, &remaining);
			break;
		}

		result = dns_rdataset_next(&clone);
		dns_rdata_reset(&rdata);
	}
	dns_rdataset_disassociate(&clone);
	if (result == ISC_R_NOMORE)
		return (ISC_R_NOTFOUND);
	if (result != ISC_R_SUCCESS)
		return (result);

	INSIST(remaining.length != 0);

	rdataset->methods = &rdataset_methods;
	rdataset->rdclass = ncacherdataset->rdclass;
	rdataset->type = dns_rdatatype_rrsig;
	rdataset->covers = covers;
	rdataset->ttl = ncacherdataset->ttl;
	rdataset->trust = trust;
	rdataset->private1 = NULL;
	rdataset->private2 = NULL;

	rdataset->private3 = remaining.base;

	/*
	 * Reset iterator state.
	 */
	rdataset->privateuint4 = 0;
	rdataset->private5 = NULL;
	rdataset->private6 = NULL;
	return (ISC_R_SUCCESS);
}
开发者ID:chris-wood，项目名称:bind-prime，代码行数:98，代码来源:ncache.c


示例14: main


//.........这里部分代码省略.........
    
    sql = sqlite3_mprintf("DROP TABLE %q ", dbi.table);
    printf("%s\n", sql);
    res = sqlite3_exec(dbi.db, sql, NULL, NULL, &errmsg);
    sqlite3_free(sql);
#if 0
    if (res != SQLITE_OK) {
	fprintf(stderr, "DROP TABLE %s failed: %s\n",
		dbi.table, errmsg);
    }
#endif

#if 0    
    sql = sqlite3_mprintf(sql, "BEGIN TRANSACTION");
    printf("%s\n", sql);
    res = sqlite3_exec(dbi.db, sql, NULL, NULL, &errmsg);
    sqlite3_free(sql);
    if (res != SQLITE_OK) {
	fprintf(stderr, "BEGIN TRANSACTION failed: %s\n", errmsg);
	closeandexit(1);
    }
#endif
    
    sql = sqlite3_mprintf(
	"CREATE TABLE %q "
	"(NAME TEXT, TTL INTEGER, RDTYPE TEXT, RDATA TEXT) ",
	dbi.table);
    printf("%s\n", sql);
    res = sqlite3_exec(dbi.db, sql, NULL, NULL, &errmsg);
    sqlite3_free(sql);
    if (res != SQLITE_OK) {
	fprintf(stderr, "CREATE TABLE %s failed: %s\n",
		dbi.table, errmsg);
	closeandexit(1);
    }
    
    dbiter = NULL;
    result = dns_db_createiterator(db, 0, &dbiter);
    check_result(result, "dns_db_createiterator()");
    
    result = dns_dbiterator_first(dbiter);
    check_result(result, "dns_dbiterator_first");
    
    dns_fixedname_init(&fname);
    name = dns_fixedname_name(&fname);
    dns_rdataset_init(&rdataset);
    dns_rdata_init(&rdata);
    
    while (result == ISC_R_SUCCESS) {
	node = NULL;
	result = dns_dbiterator_current(dbiter, &node, name);
	if (result == ISC_R_NOMORE)
	    break;
	check_result(result, "dns_dbiterator_current");
	
	rdsiter = NULL;
	result = dns_db_allrdatasets(db, node, NULL, 0, &rdsiter);
	check_result(result, "dns_db_allrdatasets");

	result = dns_rdatasetiter_first(rdsiter);

	while (result == ISC_R_SUCCESS) {
	    dns_rdatasetiter_current(rdsiter, &rdataset);
	    result = dns_rdataset_first(&rdataset);
	    check_result(result, "dns_rdataset_first");
	    while (result == ISC_R_SUCCESS) {
		dns_rdataset_current(&rdataset, &rdata);
		addrdata(name, rdataset.ttl, &rdata);
		dns_rdata_reset(&rdata);
		result = dns_rdataset_next(&rdataset);
	    }
	    dns_rdataset_disassociate(&rdataset);
	    result = dns_rdatasetiter_next(rdsiter);
	}
	dns_rdatasetiter_destroy(&rdsiter);
	dns_db_detachnode(db, &node);
	result = dns_dbiterator_next(dbiter);
    }

#if 0
    sql = sqlite3_mprintf(sql, "COMMIT TRANSACTION ");
    printf("%s\n", sql);
    res = sqlite3_exec(dbi.db, sql, NULL, NULL, &errmsg);
    sqlite3_free(sql);
    if (res != SQLITE_OK) {
	fprintf(stderr, "COMMIT TRANSACTION failed: %s\n", errmsg);
	closeandexit(1);
    }
#endif
    
    dns_dbiterator_destroy(&dbiter);
    dns_db_detach(&db);
    isc_hash_destroy();
    isc_entropy_detach(&ectx);
    isc_mem_destroy(&mctx);

    closeandexit(0);

    exit(0);
}
开发者ID:ElRevo，项目名称:xia-core，代码行数:101，代码来源:zone2sqlite.c


示例15: dns_ncache_getrdataset

isc_result_t
dns_ncache_getrdataset(dns_rdataset_t *ncacherdataset, dns_name_t *name,
		       dns_rdatatype_t type, dns_rdataset_t *rdataset)
{
	isc_result_t result;
	dns_rdata_t rdata = DNS_RDATA_INIT;
	isc_region_t remaining;
	isc_buffer_t source;
	dns_name_t tname;
	dns_rdatatype_t ttype;
	dns_trust_t trust = dns_trust_none;
	dns_rdataset_t clone;

	REQUIRE(ncacherdataset != NULL);
	REQUIRE(ncacherdataset->type == 0);
	REQUIRE((ncacherdataset->attributes & DNS_RDATASETATTR_NEGATIVE) != 0);
	REQUIRE(name != NULL);
	REQUIRE(!dns_rdataset_isassociated(rdataset));
	REQUIRE(type != dns_rdatatype_rrsig);

	dns_rdataset_init(&clone);
	dns_rdataset_clone(ncacherdataset, &clone);
	result = dns_rdataset_first(&clone);
	while (result == ISC_R_SUCCESS) {
		dns_rdataset_current(&clone, &rdata);
		isc_buffer_init(&source, rdata.data, rdata.length);
		isc_buffer_add(&source, rdata.length);
		dns_name_init(&tname, NULL);
		isc_buffer_remainingregion(&source, &remaining);
		dns_name_fromregion(&tname, &remaining);
		INSIST(remaining.length >= tname.length);
		isc_buffer_forward(&source, tname.length);
		remaining.length -= tname.length;

		INSIST(remaining.length >= 3);
		ttype = isc_buffer_getuint16(&source);

		if (ttype == type && dns_name_equal(&tname, name)) {
			trust = isc_buffer_getuint8(&source);
			INSIST(trust <= dns_trust_ultimate);
			isc_buffer_remainingregion(&source, &remaining);
			break;
		}
		result = dns_rdataset_next(&clone);
		dns_rdata_reset(&rdata);
	}
	dns_rdataset_disassociate(&clone);
	if (result == ISC_R_NOMORE)
		return (ISC_R_NOTFOUND);
	if (result != ISC_R_SUCCESS)
		return (result);

	INSIST(remaining.length != 0);

	rdataset->methods = &rdataset_methods;
	rdataset->rdclass = ncacherdataset->rdclass;
	rdataset->type = type;
	rdataset->covers = 0;
	rdataset->ttl = ncacherdataset->ttl;
	rdataset->trust = trust;
	rdataset->private1 = NULL;
	rdataset->private2 = NULL;

	rdataset->private3 = remaining.base;

	/*
	 * Reset iterator state.
	 */
	rdataset->privateuint4 = 0;
	rdataset->private5 = NULL;
	rdataset->private6 = NULL;
	return (ISC_R_SUCCESS);
}
开发者ID:chris-wood，项目名称:bind-prime，代码行数:73，代码来源:ncache.c


示例16: dns_ncache_towire


//.........这里部分代码省略.........
		dns_rdataset_current(rdataset, &rdata);
		isc_buffer_init(&source, rdata.data, rdata.length);
		isc_buffer_add(&source, rdata.length);
		dns_name_init(&name, NULL);
		isc_buffer_remainingregion(&source, &remaining);
		dns_name_fromregion(&name, &remaining);
		INSIST(remaining.length >= name.length);
		isc_buffer_forward(&source, name.length);
		remaining.length -= name.length;

		INSIST(remaining.length >= 5);
		type = isc_buffer_getuint16(&source);
		isc_buffer_forward(&source, 1);
		rcount = isc_buffer_getuint16(&source);

		for (i = 0; i < rcount; i++) {
			/*
			 * Get the length of this rdata and set up an
			 * rdata structure for it.
			 */
			isc_buffer_remainingregion(&source, &remaining);
			INSIST(remaining.length >= 2);
			dns_rdata_reset(&rdata);
			rdata.length = isc_buffer_getuint16(&source);
			isc_buffer_remainingregion(&source, &remaining);
			rdata.data = remaining.base;
			rdata.type = type;
			rdata.rdclass = rdataset->rdclass;
			INSIST(remaining.length >= rdata.length);
			isc_buffer_forward(&source, rdata.length);

			if ((options & DNS_NCACHETOWIRE_OMITDNSSEC) != 0 &&
			    dns_rdatatype_isdnssec(type))
				continue;

			/*
			 * Write the name.
			 */
			dns_compress_setmethods(cctx, DNS_COMPRESS_GLOBAL14);
			result = dns_name_towire(&name, cctx, target);
			if (result != ISC_R_SUCCESS)
				goto rollback;

			/*
			 * See if we have space for type, class, ttl, and
			 * rdata length.  Write the type, class, and ttl.
			 */
			isc_buffer_availableregion(target, &tavailable);
			if (tavailable.length < 10) {
				result = ISC_R_NOSPACE;
				goto rollback;
			}
			isc_buffer_putuint16(target, type);
			isc_buffer_putuint16(target, rdataset->rdclass);
			isc_buffer_putuint32(target, rdataset->ttl);

			/*
			 * Save space for rdata length.
			 */
			rdlen = *target;
			isc_buffer_add(target, 2);

			/*
			 * Write the rdata.
			 */
			result = dns_rdata_towire(&rdata, cctx, target);
			if (result != ISC_R_SUCCESS)
				goto rollback;

			/*
			 * Set the rdata length field to the compressed
			 * length.
			 */
			INSIST((target->used >= rdlen.used + 2) &&
			       (target->used - rdlen.used - 2 < 65536));
			isc_buffer_putuint16(&rdlen,
					     (isc_uint16_t)(target->used -
							    rdlen.used - 2));

			count++;
		}
		INSIST(isc_buffer_remaininglength(&source) == 0);
		result = dns_rdataset_next(rdataset);
		dns_rdata_reset(&rdata);
	}
	if (result != ISC_R_NOMORE)
		goto rollback;

	*countp = count;

	return (ISC_R_SUCCESS);

 rollback:
	INSIST(savedbuffer.used < 65536);
	dns_compress_rollback(cctx, (isc_uint16_t)savedbuffer.used);
	*countp = 0;
	*target = savedbuffer;

	return (result);
}
开发者ID:chris-wood，项目名称:bind-prime，代码行数:101，代码来源:ncache.c


示例17: dns_root_checkhints

void
dns_root_checkhints(dns_view_t *view, dns_db_t *hints, dns_db_t *db) {
	isc_result_t result;
	dns_rdata_t rdata = DNS_RDATA_INIT;
	dns_rdata_ns_t ns;
	dns_rdataset_t hintns, rootns;
	const char *viewname = "", *sep = "";
	isc_stdtime_t now;
	dns_name_t *name;
	dns_fixedname_t fixed;

	REQUIRE(hints != NULL);
	REQUIRE(db != NULL);
	REQUIRE(view != NULL);

	isc_stdtime_get(&now);

	if (strcmp(view->name, "_bind") != 0 &&
	    strcmp(view->name, "_default") != 0) {
		viewname = view->name;
		sep = ": view ";
	}

	dns_rdataset_init(&hintns);
	dns_rdataset_init(&rootns);
	dns_fixedname_init(&fixed);
	name = dns_fixedname_name(&fixed);

	result = dns_db_find(hints, dns_rootname, NULL, dns_rdatatype_ns, 0,
			     now, NULL, name, &hintns, NULL);
	if (result != ISC_R_SUCCESS) {
		isc_log_write(dns_lctx, DNS_LOGCATEGORY_GENERAL,
			      DNS_LOGMODULE_HINTS, ISC_LOG_WARNING,
			      "checkhints%s%s: unable to get root NS rrset "
			      "from hints: %s", sep, viewname,
			      dns_result_totext(result));
		goto cleanup;
	}

	result = dns_db_find(db, dns_rootname, NULL, dns_rdatatype_ns, 0,
			     now, NULL, name, &rootns, NULL);
	if (result != ISC_R_SUCCESS) {
		isc_log_write(dns_lctx, DNS_LOGCATEGORY_GENERAL,
			      DNS_LOGMODULE_HINTS, ISC_LOG_WARNING,
			      "checkhints%s%s: unable to get root NS rrset "
			      "from cache: %s", sep, viewname,
			      dns_result_totext(result));
		goto cleanup;
	}

	/*
	 * Look for missing root NS names.
	 */
	result = dns_rdataset_first(&rootns);
	while (result == ISC_R_SUCCESS) {
		dns_rdataset_current(&rootns, &rdata);
		result = dns_rdata_tostruct(&rdata, &ns, NULL);
		RUNTIME_CHECK(result == ISC_R_SUCCESS);
		result = in_rootns(&hintns, &ns.name);
		if (result != ISC_R_SUCCESS) {
			char namebuf[DNS_NAME_FORMATSIZE];
			/* missing from hints */
			dns_name_format(&ns.name, namebuf, sizeof(namebuf));
			isc_log_write(dns_lctx, DNS_LOGCATEGORY_GENERAL,
				      DNS_LOGMODULE_HINTS, ISC_LOG_WARNING,
				      "checkhints%s%s: unable to find root "
				      "NS '%s' in hints", sep, viewname,
				      namebuf);
		} else
			check_address_records(view, hints, db, &ns.name, now);
		dns_rdata_reset(&rdata);
		result = dns_rdataset_next(&rootns);
	}
	if (result != ISC_R_NOMORE) {
		goto cleanup;
	}

	/*
	 * Look for extra root NS names.
	 */
	result = dns_rdataset_first(&hintns);
	while (result == ISC_R_SUCCESS) {
		dns_rdataset_current(&hintns, &rdata);
		result = dns_rdata_tostruct(&rdata, &ns, NULL);
		RUNTIME_CHECK(result == ISC_R_SUCCESS);
		result = in_rootns(&rootns, &ns.name);
		if (result != ISC_R_SUCCESS) {
			char namebuf[DNS_NAME_FORMATSIZE];
			/* extra entry in hints */
			dns_name_format(&ns.name, namebuf, sizeof(namebuf));
			isc_log_write(dns_lctx, DNS_LOGCATEGORY_GENERAL,
				      DNS_LOGMODULE_HINTS, ISC_LOG_WARNING,
				      "checkhints%s%s: extra NS '%s' in hints",
				      sep, viewname, namebuf);
		}
		dns_rdata_reset(&rdata);
		result = dns_rdataset_next(&hintns);
	}
	if (result != ISC_R_NOMORE) {
		goto cleanup;
//.........这里部分代码省略.........
开发者ID:execunix，项目名称:vinos，代码行数:101，代码来源:rootns.c


示例18: process_dhtkey

static isc_result_t
process_dhtkey(dns_message_t *msg, dns_name_t *signer, dns_name_t *name,
	       dns_rdata_tkey_t *tkeyin, dns_tkeyctx_t *tctx,
	       dns_rdata_tkey_t *tkeyout,
	       dns_tsig_keyring_t *ring, dns_namelist_t *namelist)
{
	isc_result_t result = ISC_R_SUCCESS;
	dns_name_t *keyname, ourname;
	dns_rdataset_t *keyset = NULL;
	dns_rdata_t keyrdata = DNS_RDATA_INIT, ourkeyrdata = DNS_RDATA_INIT;
	isc_boolean_t found_key = ISC_FALSE, found_incompatible = ISC_FALSE;
	dst_key_t *pubkey = NULL;
	isc_buffer_t ourkeybuf, *shared = NULL;
	isc_region_t r, r2, ourkeyr;
	unsigned char keydata[DST_KEY_MAXSIZE];
	unsigned int sharedsize;
	isc_buffer_t secret;
	unsigned char *randomdata = NULL, secretdata[256];
	dns_ttl_t ttl = 0;

	if (tctx->dhkey == NULL) {
		tkey_log("process_dhtkey: tkey-dhkey not defined");
		tkeyout->error = dns_tsigerror_badalg;
		return (DNS_R_REFUSED);
	}

	if (!dns_name_equal(&tkeyin->algorithm, DNS_TSIG_HMACMD5_NAME)) {
		tkey_log("process_dhtkey: algorithms other than "
			 "hmac-md5 are not supported");
		tkeyout->error = dns_tsigerror_badalg;
		return (ISC_R_SUCCESS);
	}

	/*
	 * Look for a DH KEY record that will work with ours.
	 */
	for (result = dns_message_firstname(msg, DNS_SECTION_ADDITIONAL);
	     result == ISC_R_SUCCESS && !found_key;
	     result = dns_message_nextname(msg, DNS_SECTION_ADDITIONAL)) {
		keyname = NULL;
		dns_message_currentname(msg, DNS_SECTION_ADDITIONAL, &keyname);
		keyset = NULL;
		result = dns_message_findtype(keyname, dns_rdatatype_key, 0,
					      &keyset);
		if (result != ISC_R_SUCCESS)
			continue;

		for (result = dns_rdataset_first(keyset);
		     result == ISC_R_SUCCESS && !found_key;
		     result = dns_rdataset_next(keyset)) {
			dns_rdataset_current(keyset, &keyrdata);
			pubkey = NULL;
			result = dns_dnssec_keyfromrdata(keyname, &keyrdata,
							 msg->mctx, &pubkey);
			if (result != ISC_R_SUCCESS) {
				dns_rdata_reset(&keyrdata);
				continue;
			}
			if (dst_key_alg(pubkey) == DNS_KEYALG_DH) {
				if (dst_key_paramcompare(pubkey, tctx->dhkey))
				{
					found_key = ISC_TRUE;
					ttl = keyset->ttl;
					break;
				} else
					found_incompatible = ISC_TRUE;
			}
			dst_key_free(&pubkey);
			dns_rdata_reset(&keyrdata);
		}
	}

	if (!found_key) {
		if (found_incompatible) {
			tkey_log("process_dhtkey: found an incompatible key");
			tkeyout->error = dns_tsigerror_badkey;
			return (ISC_R_SUCCESS);
		} else {
			tkey_log("process_dhtkey: failed to find a key");
			return (DNS_R_FORMERR);
		}
	}

	RETERR(add_rdata_to_list(msg, keyname, &keyrdata, ttl, namelist));

	isc_buffer_init(&ourkeybuf, keydata, sizeof(keydata));
	RETERR(dst_key_todns(tctx->dhkey, &ourkeybuf));
	isc_buffer_usedregion(&ourkeybuf, &ourkeyr);
	dns_rdata_fromregion(&ourkeyrdata, dns_rdataclass_any,
			     dns_rdatatype_key, &ourkeyr);

	dns_name_init(&ourname, NULL);
	dns_name_clone(dst_key_name(tctx->dhkey), &ourname);

	/*
	 * XXXBEW The TTL should be obtained from the database, if it exists.
	 */
	RETERR(add_rdata_to_list(msg, &ourname, &ourkeyrdata, 0, namelist));

	RETERR(dst_key_secretsize(tctx->dhkey, &sharedsize));
//.........这里部分代码省略.........
开发者ID:chris-wood，项目名称:bind-prime，代码行数:101，代码来源:tkey.c


示例19: resolve_nsaddress

static void
resolve_nsaddress(isc_task_t *task, isc_event_t *event) {
	struct probe_trans *trans = event->ev_arg;
	dns_clientresevent_t *rev = (dns_clientresevent_t *)event;
	dns_name_t *name;
	dns_rdataset_t *rdataset;
	dns_rdata_t rdata = DNS_RDATA_INIT;
	struct probe_ns *pns = trans->current_ns;
	isc_result_t result;

	REQUIRE(task == probe_task);
	REQUIRE(trans->inuse == ISC_TRUE);
	REQUIRE(pns != NULL);
	INSIST(outstanding_probes > 0);

	for (name = ISC_LIST_HEAD(rev->answerlist); name != NULL;
	     name = ISC_LIST_NEXT(name, link)) {
		for (rdataset = ISC_LIST_HEAD(name->list);
		     rdataset != NULL;
		     rdataset = ISC_LIST_NEXT(rdataset, link)) {
			(void)print_rdataset(rdataset, name);

			if (rdataset->type != dns_rdatatype_a)
				continue;

			for (result = dns_rdataset_first(rdataset);
			     result == ISC_R_SUCCESS;
			     result = dns_rdataset_next(rdataset)) {
				dns_rdata_in_a_t rdata_a;
				struct server *server;

				dns_rdataset_current(rdataset, &rdata);
				result = dns_rdata_tostruct(&rdata, &rdata_a,
							    NULL);
				if (result != ISC_R_SUCCESS)
					continue;

				server = isc_mem_get(mctx, sizeof(*server));
				if (server == NULL) {
					fprintf(stderr, "resolve_nsaddress: "
						"mem_get failed");
					result = ISC_R_NOMEMORY;
					POST(result);
					goto cleanup;
				}
				isc_sockaddr_fromin(&server->address,
						    &rdata_a.in_addr, 53);
				ISC_LINK_INIT(server, link);
				server->result_a = none;
				server->result_aaaa = none;
				ISC_LIST_APPEND(pns->servers, server, link);
			}
		}
	}

 cleanup:
	dns_client_freeresanswer(client, &rev->answerlist);
	dns_client_destroyrestrans(&trans->resid);
	isc_event_free(&event);

 next_ns:
	trans->current_ns = ISC_LIST_NEXT(pns, link);
	if (trans->current_ns == NULL) {
		trans->current_ns = ISC_LIST_HEAD(trans->nslist);
		dns_fixedname_invalidate(&trans->fixedname);
		trans->qname = NULL;
		result = set_nextqname(trans);
		if (result == ISC_R_SUCCESS)
			 result = probe_name(trans, dns_rdatatype_a);
	} else {
		result = fetch_nsaddress(trans);
		if (result != ISC_R_SUCCESS)
			goto next_ns; /* XXX: this is unlikely to succeed */
	}

	if (result != ISC_R_SUCCESS)
		reset_probe(trans);
}
开发者ID:pombredanne，项目名称:NetBSD，代码行数:78，代码来源:nsprobe.c


示例20: printsection

static isc_result_t
printsection(dig_query_t *query, dns_message_t *msg, isc_boolean_t headers,
	     dns_section_t section) {
	isc_result_t result, loopresult;
	dns_name_t *name;
	dns_rdataset_t *rdataset = NULL;
	dns_rdata_t rdata = DNS_RDATA_INIT;
	char namebuf[DNS_NAME_FORMATSIZE];

	UNUSED(query);
	UNUSED(headers);

	debug("printsection()");

	result = dns_message_firstname(msg, section);
	if (result == ISC_R_NOMORE)
		return (ISC_R_SUCCESS);
	else if (result != ISC_R_SUCCESS)
		return (result);
	for (;;) {
		name = NULL;
		dns_message_currentname(msg, section,
					&name);
		for (rdataset = ISC_LIST_HEAD(name->list);
		     rdataset != NULL;
		     rdataset = ISC_LIST_NEXT(rdataset, link)) {
			loopresult = dns_rdataset_first(rdataset);
			while (loopresult == ISC_R_SUCCESS) {
				dns_rdataset_current(rdataset, &rdata);
				switch (rdata.type) {
				case dns_rdatatype_a:
					if (section != DNS_SECTION_ANSWER)
						goto def_short_section;
					dns_name_format(name, namebuf,
							sizeof(namebuf));
					printf("Name:\t%s\n", namebuf);
					printa(&rdata);
					break;
				case dns_rdatatype_soa:
					dns_name_format(name, namebuf,
							sizeof(namebuf));
					printf("%s\n", namebuf);
					printsoa(&rdata);
					break;
				default:
				def_short_section:
					dns_name_format(name, namebuf,
							sizeof(namebuf));
					printf("%s\t", namebuf);
					printrdata(&rdata);
					break;
				}
				dns_rdata_reset(&rdata);
				loopresult = dns_rdataset_next(rdataset);
			}
		}
		result = dns_message_nextname(msg, section);
		if (result == ISC_R_NOMORE)
			break;
		else if (result != ISC_R_SUCCESS) {
			return (result);
		}
	}
	return (ISC_R_SUCCESS);
}
开发者ID:krichter722，项目名称:bind9，代码行数:65，代码来源:nslookup.c



注：本文中的dns_rdataset_next函数示例由纯净天空整理自Github/MSDocs等源码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。

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