1586. [func] "check-names" is now implemented.

CHANGES

+1586.	[func]		"check-names" is now implemented.
+
 1585.	[placeholder]	rt10497
 
 1584.	[placeholder]	rt10461

bin/check/named-checkzone.c

@@ -15,7 +15,7 @@
  * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  */
 
-/* $Id: named-checkzone.c,v 1.27 2004/01/07 05:27:17 marka Exp $ */
+/* $Id: named-checkzone.c,v 1.28 2004/02/27 20:41:41 marka Exp $ */
 
 #include <config.h>
 
@@ -63,7 +63,7 @@ static void
 usage(void) {
 	fprintf(stderr,
 		"usage: named-checkzone [-djqvD] [-c class] [-o output] "
-		"[-t directory] [-w directory] zonename filename\n");
+		"[-t directory] [-w directory] [-k option] zonename filename\n");
 	exit(1);
 }
 
@@ -84,7 +84,7 @@ main(int argc, char **argv) {
 	char *classname = classname_in;
 	const char *workdir = NULL;
 
-	while ((c = isc_commandline_parse(argc, argv, "c:dijn:qst:o:vw:D")) != EOF) {
+	while ((c = isc_commandline_parse(argc, argv, "c:dijk:n:qst:o:vw:D")) != EOF) {
 		switch (c) {
 		case 'c':
 			classname = isc_commandline_argument;
@@ -110,6 +110,16 @@ main(int argc, char **argv) {
 					        DNS_ZONEOPT_FATALNS;
 			break;
 
+		case 'k':
+			if (!strcmp(isc_commandline_argument, "check-names")) {
+				zone_options |= DNS_ZONEOPT_CHECKNAMES;
+			} else if (!strcmp(isc_commandline_argument,
+					   "check-names-fail")) {
+				zone_options |= DNS_ZONEOPT_CHECKNAMES |
+						DNS_ZONEOPT_CHECKNAMESFAIL;
+			}
+			break;
+
 		case 'q':
 			quiet++;
 			break;

bin/check/named-checkzone.docbook

@@ -16,7 +16,7 @@
  - WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 -->
 
-<!-- $Id: named-checkzone.docbook,v 1.9 2004/01/07 05:27:17 marka Exp $ -->
+<!-- $Id: named-checkzone.docbook,v 1.10 2004/02/27 20:41:41 marka Exp $ -->
 
 <refentry>
   <refentryinfo>
@@ -42,6 +42,7 @@
       <arg><option>-q</option></arg>
       <arg><option>-v</option></arg>
       <arg><option>-c <replaceable class="parameter">class</replaceable></option></arg>
+      <arg><option>-k <replaceable class="parameter">mode</replaceable></option></arg>
       <arg><option>-n <replaceable class="parameter">mode</replaceable></option></arg>
       <arg><option>-o <replaceable class="parameter">filename</replaceable></option></arg>
       <arg><option>-t <replaceable class="parameter">directory</replaceable></option></arg>
@@ -112,6 +113,18 @@
 	</listitem>
       </varlistentry>
 
+      <varlistentry>
+        <term>-k <replaceable class="parameter">mode</replaceable></term>
+	<listitem>
+	  <para>
+	      Perform <command>"check-name"</command> checks with the specified failure mode.
+	      Possible modes are <command>"fail"</command>,
+	      <command>"warn"</command> (default) and
+	      <command>"ignore"</command>.
+	  </para>
+	</listitem>
+      </varlistentry>
+
       <varlistentry>
         <term>-n <replaceable class="parameter">mode</replaceable></term>
 	<listitem>

bin/named/config.c

@@ -15,7 +15,7 @@
  * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  */
 
-/* $Id: config.c,v 1.43 2004/02/17 03:40:19 marka Exp $ */
+/* $Id: config.c,v 1.44 2004/02/27 20:41:41 marka Exp $ */
 
 #include <config.h>
 
@@ -120,8 +120,8 @@ options {\n\
 	max-cache-ttl 604800; /* 1 week */\n\
 	transfer-format many-answers;\n\
 	max-cache-size 0;\n\
-	check-names master ignore;\n\
-	check-names slave ignore;\n\
+	check-names master fail;\n\
+	check-names slave warn;\n\
 	check-names response ignore;\n\
 	enable-dnssec no; /* Make yes for 9.4. */ \n\
 \n\

bin/named/query.c

@@ -15,7 +15,7 @@
  * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  */
 
-/* $Id: query.c,v 1.254 2004/02/17 03:40:20 marka Exp $ */
+/* $Id: query.c,v 1.255 2004/02/27 20:41:41 marka Exp $ */
 
 #include <config.h>
 
@@ -2418,6 +2418,26 @@ query_find(ns_client_t *client, dns_fetchevent_t *event, dns_rdatatype_t qtype)
 	version = NULL;
 	need_wildcardproof = ISC_FALSE;
 
+	if (client->view->checknames &&
+	    !dns_rdata_checkowner(client->query.qname,
+				  client->message->rdclass,
+				  qtype, ISC_FALSE)) {
+		char namebuf[DNS_NAME_FORMATSIZE];
+		char typename[DNS_RDATATYPE_FORMATSIZE];
+		char classname[DNS_RDATACLASS_FORMATSIZE];
+
+		dns_name_format(client->query.qname, namebuf, sizeof(namebuf));
+		dns_rdatatype_format(qtype, typename, sizeof(typename));
+		dns_rdataclass_format(client->message->rdclass, classname,
+				      sizeof(classname));
+		ns_client_log(client, DNS_LOGCATEGORY_SECURITY,
+			      NS_LOGMODULE_QUERY, ISC_LOG_ERROR,
+			      "check-names failure %s/%s/%s", namebuf,
+			      typename, classname);
+		QUERY_ERROR(DNS_R_REFUSED);
+		goto cleanup;
+	}
+
 	/*
 	 * First we must find the right database.
 	 */

bin/named/server.c

@@ -15,7 +15,7 @@
  * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  */
 
-/* $Id: server.c,v 1.413 2004/02/24 03:31:08 marka Exp $ */
+/* $Id: server.c,v 1.414 2004/02/27 20:41:42 marka Exp $ */
 
 #include <config.h>
 
@@ -667,9 +667,10 @@ configure_view(dns_view_t *view, cfg_obj_t *config, cfg_obj_t *vconfig,
 	dns_dispatch_t *dispatch6 = NULL;
 	isc_boolean_t reused_cache = ISC_FALSE;
 	int i;
-	char *str;
+	const char *str;
 	dns_order_t *order = NULL;
 	isc_uint32_t udpsize;
+	unsigned int check = 0;
 
 	REQUIRE(DNS_VIEW_VALID(view));
 
@@ -792,6 +793,38 @@ configure_view(dns_view_t *view, cfg_obj_t *config, cfg_obj_t *vconfig,
 
 	dns_cache_detach(&cache);
 
+	/*
+	 * Check-names.
+	 */
+	obj = NULL;
+	str = "";
+	result = ns_config_get(maps, "check-names", &obj);
+	INSIST(result == ISC_R_SUCCESS);
+	for (element = cfg_list_first(obj);
+	     element != NULL;
+	     element = cfg_list_next(element)) {
+		cfg_obj_t *value, *type;
+		value = cfg_listelt_value(element);
+		type = cfg_tuple_get(value, "type");
+		if (strcasecmp(cfg_obj_asstring(type), "response") == 0) {
+			str = cfg_obj_asstring(cfg_tuple_get(value, "mode"));
+			break;
+		}
+	}
+
+        if (strcasecmp(str, "fail") == 0) {
+                check = DNS_RESOLVER_CHECKNAMES |
+			DNS_RESOLVER_CHECKNAMESFAIL;
+		view->checknames = ISC_TRUE;
+        } else if (strcasecmp(str, "warn") == 0) {
+                check = DNS_RESOLVER_CHECKNAMES;
+		view->checknames = ISC_FALSE;
+        } else if (strcasecmp(str, "ignore") == 0) {
+		check = 0;
+		view->checknames = ISC_FALSE;
+	} else
+                INSIST(0);
+
 	/*
 	 * Resolver.
 	 *
@@ -808,7 +841,7 @@ configure_view(dns_view_t *view, cfg_obj_t *config, cfg_obj_t *vconfig,
 	}
 	CHECK(dns_view_createresolver(view, ns_g_taskmgr, 31,
 				      ns_g_socketmgr, ns_g_timermgr,
-				      0, ns_g_dispatchmgr,
+				      check, ns_g_dispatchmgr,
 				      dispatch4, dispatch6));
 	if (dispatch4 != NULL)
 		dns_dispatch_detach(&dispatch4);

bin/named/update.c

@@ -15,7 +15,7 @@
  * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  */
 
-/* $Id: update.c,v 1.107 2004/02/03 00:59:03 marka Exp $ */
+/* $Id: update.c,v 1.108 2004/02/27 20:41:42 marka Exp $ */
 
 #include <config.h>
 
@@ -2291,6 +2291,9 @@ update_action(isc_task_t *task, isc_event_t *event) {
 				FAILC(DNS_R_FORMERR,
 				      "meta-RR in update");
 			}
+			result = dns_zone_checknames(zone, name, &rdata);
+			if (result != ISC_R_SUCCESS)
+				FAIL(DNS_R_REFUSED);
 		} else if (update_class == dns_rdataclass_any) {
 			if (ttl != 0 || rdata.length != 0 ||
 			    (dns_rdatatype_ismeta(rdata.type) &&

bin/named/zoneconf.c

@@ -15,7 +15,7 @@
  * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  */
 
-/* $Id: zoneconf.c,v 1.108 2004/01/05 06:56:44 marka Exp $ */
+/* $Id: zoneconf.c,v 1.109 2004/02/27 20:41:42 marka Exp $ */
 
 #include <config.h>
 
@@ -292,6 +292,41 @@ strtoargv(isc_mem_t *mctx, char *s, unsigned int *argcp, char ***argvp) {
 	return (strtoargvsub(mctx, s, argcp, argvp, 0));
 }
 
+static void
+checknames(dns_zonetype_t ztype, cfg_obj_t **maps, cfg_obj_t **objp) {
+	const char *zone = NULL;
+	cfg_listelt_t *element;
+	cfg_obj_t *type;
+	cfg_obj_t *value;
+	cfg_obj_t *check;
+	int i;
+
+	switch (ztype) {
+	case dns_zone_slave: zone = "slave"; break;
+	case dns_zone_master: zone = "master"; break;
+	default:
+		INSIST(0);
+	}
+	for (i = 0; maps[i] != NULL; i++) {
+		check = NULL;
+		cfg_map_get(maps[i], "check-names", &check);
+		if (check != NULL && !cfg_obj_islist(check)) {
+			*objp = check;
+			return;
+		}
+		for (element = cfg_list_first(check);
+		     element != NULL;
+		     element = cfg_list_next(element)) {
+			value = cfg_listelt_value(element);
+			type = cfg_tuple_get(value, "type");
+			if (strcasecmp(cfg_obj_asstring(type), zone) == 0) {
+				*objp = cfg_tuple_get(value, "mode");
+				return;
+			}
+		}
+	}
+}
+
 isc_result_t
 ns_zone_configure(cfg_obj_t *config, cfg_obj_t *vconfig, cfg_obj_t *zconfig,
 		  ns_aclconfctx_t *ac, dns_zone_t *zone)
@@ -321,6 +356,7 @@ ns_zone_configure(cfg_obj_t *config, cfg_obj_t *vconfig, cfg_obj_t *zconfig,
 	isc_boolean_t multi;
 	isc_boolean_t alt;
 	dns_view_t *view;
+	isc_boolean_t check = ISC_FALSE, fail = ISC_FALSE;
 
 	i = 0;
 	if (zconfig != NULL) {
@@ -514,6 +550,20 @@ ns_zone_configure(cfg_obj_t *config, cfg_obj_t *vconfig, cfg_obj_t *zconfig,
 		INSIST(result == ISC_R_SUCCESS);
 		dns_zone_setoption(zone, DNS_ZONEOPT_IXFRFROMDIFFS,
 				   cfg_obj_asboolean(obj));
+
+		checknames(ztype, maps, &obj);
+		INSIST(obj != NULL);
+		if (strcasecmp(cfg_obj_asstring(obj), "warn") == 0) {
+			fail = ISC_FALSE;
+			check = ISC_TRUE;
+		} else if (strcasecmp(cfg_obj_asstring(obj), "fail") == 0) {
+			fail = check = ISC_TRUE;
+		} else if (strcasecmp(cfg_obj_asstring(obj), "ignore") == 0) {
+			fail = check = ISC_FALSE;
+		} else
+			INSIST(0);
+		dns_zone_setoption(zone, DNS_ZONEOPT_CHECKNAMES, check);
+		dns_zone_setoption(zone, DNS_ZONEOPT_CHECKNAMESFAIL, fail);
 	}
 
 	/*

bin/nsupdate/nsupdate.c

@@ -15,7 +15,7 @@
  * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  */
 
-/* $Id: nsupdate.c,v 1.123 2003/07/25 02:22:23 marka Exp $ */
+/* $Id: nsupdate.c,v 1.124 2004/02/27 20:41:42 marka Exp $ */
 
 #include <config.h>
 
@@ -758,7 +758,7 @@ parse_rdata(char **cmdlinep, dns_rdataclass_t rdataclass,
 		result = isc_buffer_allocate(mctx, &buf, MAXWIRE);
 		check_result(result, "isc_buffer_allocate");
 		result = dns_rdata_fromtext(rdata, rdataclass, rdatatype, lex,
-					    rn, ISC_FALSE, mctx, buf,
+					    rn, 0, mctx, buf,
 					    &callbacks);
 		isc_lex_destroy(&lex);
 		if (result == ISC_R_SUCCESS) {

bin/tests/rdata_test.c

@@ -15,7 +15,7 @@
  * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  */
 
-/* $Id: rdata_test.c,v 1.39 2003/09/30 05:56:02 marka Exp $ */
+/* $Id: rdata_test.c,v 1.40 2004/02/27 20:41:42 marka Exp $ */
 
 #include <config.h>
 
@@ -1013,7 +1013,7 @@ main(int argc, char *argv[]) {
 		dns_rdata_init(&rdata);
 		isc_buffer_init(&dbuf, inbuf, sizeof(inbuf));
 		result = dns_rdata_fromtext(&rdata, class, type, lex,
-					    NULL, ISC_FALSE, mctx, &dbuf,
+					    NULL, 0, mctx, &dbuf,
 					    NULL);
 		if (result != ISC_R_SUCCESS) {
 			fprintf(stdout,
@@ -1086,7 +1086,7 @@ main(int argc, char *argv[]) {
 			isc_buffer_init(&dbuf, inbuf, sizeof(inbuf));
 			dns_decompress_init(&dctx, -1, DNS_DECOMPRESS_ANY);
 			result = dns_rdata_fromwire(&rdata, class, type, &wbuf,
-						    &dctx, ISC_FALSE, &dbuf);
+						    &dctx, 0, &dbuf);
 			dns_decompress_invalidate(&dctx);
 			if (result != ISC_R_SUCCESS) {
 			fprintf(stdout,

bin/tests/system/conf.sh.in

@@ -15,7 +15,7 @@
 # NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
 # WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 
-# $Id: conf.sh.in,v 1.25 2003/09/30 05:56:06 marka Exp $
+# $Id: conf.sh.in,v 1.26 2004/02/27 20:41:43 marka Exp $
 
 #
 # Common configuration data for system tests, to be sourced into
@@ -41,7 +41,7 @@ SIGNER=$TOP/bin/dnssec/dnssec-signzone
 # The "stress" test is not run by default since it creates enough
 # load on the machine to make it unusable to other users.
 # v6synth
-SUBDIRS="cacheclean dnssec forward glue ixfr limits lwresd \
+SUBDIRS="cacheclean checknames dnssec forward glue ixfr limits lwresd \
     masterfile notify nsupdate resolver sortlist stub tkey \
     unknown upforwd views xfer xferquota"
 

lib/dns/gen.c

@@ -15,7 +15,7 @@
  * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  */
 
-/* $Id: gen.c,v 1.70 2003/07/25 00:01:05 marka Exp $ */
+/* $Id: gen.c,v 1.71 2004/02/27 20:41:43 marka Exp $ */
 
 #include <config.h>
 
@@ -34,7 +34,7 @@
 #include "gen-unix.h"
 #endif
 
-#define FROMTEXTARGS "rdclass, type, lexer, origin, downcase, target, callbacks"
+#define FROMTEXTARGS "rdclass, type, lexer, origin, options, target, callbacks"
 #define FROMTEXTCLASS "rdclass"
 #define FROMTEXTTYPE "type"
 #define FROMTEXTDEF "result = DNS_R_UNKNOWN"
@@ -44,7 +44,7 @@
 #define TOTEXTTYPE "rdata->type"
 #define TOTEXTDEF "use_default = ISC_TRUE"
 
-#define FROMWIREARGS "rdclass, type, source, dctx, downcase, target"
+#define FROMWIREARGS "rdclass, type, source, dctx, options, target"
 #define FROMWIRECLASS "rdclass"
 #define FROMWIRETYPE "type"
 #define FROMWIREDEF "use_default = ISC_TRUE"
@@ -84,6 +84,16 @@
 #define DIGESTTYPE "rdata->type"
 #define DIGESTDEF "use_default = ISC_TRUE"
 
+#define CHECKOWNERARGS "name, rdclass, type, wildcard"
+#define CHECKOWNERCLASS "rdclass"
+#define CHECKOWNERTYPE "type"
+#define CHECKOWNERDEF "result = ISC_TRUE"
+
+#define CHECKNAMESARGS "rdata, owner, bad"
+#define CHECKNAMESCLASS "rdata->rdclass"
+#define CHECKNAMESTYPE "rdata->type"
+#define CHECKNAMESDEF "result = ISC_TRUE"
+
 const char copyright[] =
 "/*\n"
 " * Copyright (C) 1998%s Internet Software Consortium.\n"
@@ -620,6 +630,12 @@ main(int argc, char **argv) {
 		doswitch("DIGESTSWITCH", "digest",
 			 DIGESTARGS, DIGESTTYPE,
 			 DIGESTCLASS, DIGESTDEF);
+		doswitch("CHECKOWNERSWITCH", "checkowner",
+			 CHECKOWNERARGS, CHECKOWNERTYPE,
+			 CHECKOWNERCLASS, CHECKOWNERDEF);
+		doswitch("CHECKNAMESSWITCH", "checknames",
+			 CHECKNAMESARGS, CHECKNAMESTYPE,
+			 CHECKNAMESCLASS, CHECKNAMESDEF);
 
 		/*
 		 * From here down, we are processing the rdata names and

lib/dns/include/dns/master.h

@@ -15,7 +15,7 @@
  * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  */
 
-/* $Id: master.h,v 1.36 2002/07/19 02:34:56 marka Exp $ */
+/* $Id: master.h,v 1.37 2004/02/27 20:41:45 marka Exp $ */
 
 #ifndef DNS_MASTER_H
 #define DNS_MASTER_H 1
@@ -43,6 +43,8 @@
 						 * they are an address */
 #define DNS_MASTER_FATALNS 	0x00000080	/* Treat DNS_MASTER_CHECKNS
 						 * matches as fatal */
+#define DNS_MASTER_CHECKNAMES   0x00000100
+#define DNS_MASTER_CHECKNAMESFAIL 0x00000200
 
 ISC_LANG_BEGINDECLS
 

lib/dns/include/dns/name.h

@@ -15,7 +15,7 @@
  * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  */
 
-/* $Id: name.h,v 1.104 2003/10/25 00:31:12 jinmei Exp $ */
+/* $Id: name.h,v 1.105 2004/02/27 20:41:45 marka Exp $ */
 
 #ifndef DNS_NAME_H
 #define DNS_NAME_H 1
@@ -140,7 +140,12 @@ struct dns_name {
 #define DNS_NAMEATTR_NCACHE		0x0400		/* Used by resolver. */
 #define DNS_NAMEATTR_CHAINING		0x0800		/* Used by resolver. */
 #define DNS_NAMEATTR_CHASE		0x1000		/* Used by resolver. */
-#define DNS_NAMEATTR_WILDCARD		0x2000		/* Used by server */
+#define DNS_NAMEATTR_WILDCARD		0x2000		/* Used by server. */
+
+#define DNS_NAME_DOWNCASE		0x0001
+#define DNS_NAME_CHECKNAMES		0x0002		/* Used by rdata. */
+#define DNS_NAME_CHECKNAMESFAIL		0x0004		/* Used by rdata. */
+#define DNS_NAME_CHECKREVERSE		0x0008		/* Used by rdata. */
 
 LIBDNS_EXTERNAL_DATA extern dns_name_t *dns_rootname;
 LIBDNS_EXTERNAL_DATA extern dns_name_t *dns_wildcardname;
@@ -639,7 +644,7 @@ dns_name_toregion(dns_name_t *name, isc_region_t *r);
 
 isc_result_t
 dns_name_fromwire(dns_name_t *name, isc_buffer_t *source,
-		  dns_decompress_t *dctx, isc_boolean_t downcase,
+		  dns_decompress_t *dctx, unsigned int options,
 		  isc_buffer_t *target);
 /*
  * Copy the possibly-compressed name at source (active region) into target,
@@ -648,7 +653,7 @@ dns_name_fromwire(dns_name_t *name, isc_buffer_t *source,
  * Notes:
  *	Decompression policy is controlled by 'dctx'.
  *
- *	If 'downcase' is true, any uppercase letters in 'source' will be
+ *	If DNS_NAME_DOWNCASE is set, any uppercase letters in 'source' will be
  *	downcased when they are copied into 'target'.
  *
  * Security:
@@ -676,8 +681,8 @@ dns_name_fromwire(dns_name_t *name, isc_buffer_t *source,
  *	If result is success:
  *	 	If 'target' is not NULL, 'name' is attached to it.
  *
- *		Uppercase letters are downcased in the copy iff. 'downcase' is
- *		true.
+ *		Uppercase letters are downcased in the copy iff
+ *		DNS_NAME_DOWNCASE is set in options.
  *
  *		The current location in source is advanced, and the used space
  *		in target is updated.
@@ -729,7 +734,7 @@ dns_name_towire(dns_name_t *name, dns_compress_t *cctx, isc_buffer_t *target);
 
 isc_result_t
 dns_name_fromtext(dns_name_t *name, isc_buffer_t *source,
-		  dns_name_t *origin, isc_boolean_t downcase,
+		  dns_name_t *origin, unsigned int options,
 		  isc_buffer_t *target);
 /*
  * Convert the textual representation of a DNS name at source
@@ -740,8 +745,8 @@ dns_name_fromtext(dns_name_t *name, isc_buffer_t *source,
  *	unless 'origin' is NULL, in which case relative domain names
  *	will remain relative.
  *
- *	If 'downcase' is true, any uppercase letters in 'source' will be
- *	downcased when they are copied into 'target'.
+ *	If DNS_NAME_DOWNCASE is set in 'options', any uppercase letters
+ *	in 'source' will be downcased when they are copied into 'target'.
  *
  * Requires:
  *
@@ -757,8 +762,8 @@ dns_name_fromtext(dns_name_t *name, isc_buffer_t *source,
  *	If result is success:
  *	 	If 'target' is not NULL, 'name' is attached to it.
  *
- *		Uppercase letters are downcased in the copy iff. 'downcase' is
- *		true.
+ *		Uppercase letters are downcased in the copy iff
+ *		DNS_NAME_DOWNCASE is set in 'options'.
  *
  *		The current location in source is advanced, and the used space
  *		in target is updated.
@@ -1137,6 +1142,28 @@ dns_name_copy(dns_name_t *source, dns_name_t *dest, isc_buffer_t *target);
  *	ISC_R_NOSPACE
  */
 
+isc_boolean_t
+dns_name_ishostname(const dns_name_t *name, isc_boolean_t wildcard);
+/*
+ * Return if 'name' is a valid hostname.  RFC 952 / RFC 1123.
+ * If 'wildcard' is ISC_TRUE then allow the first label of name to
+ * be a wildcard.
+ * The root is also accepted.
+ *
+ * Requires:
+ *	'name' to be valid.
+ */
+ 
+
+isc_boolean_t
+dns_name_ismailbox(const dns_name_t *name);
+/*
+ * Return if 'name' is a valid mailbox.  RFC 821.
+ *
+ * Requires:
+ *	'name' to be valid.
+ */
+
 ISC_LANG_ENDDECLS
 
 /***

lib/dns/include/dns/rdata.h

@@ -15,7 +15,7 @@
  * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  */
 
-/* $Id: rdata.h,v 1.58 2003/10/17 03:46:45 marka Exp $ */
+/* $Id: rdata.h,v 1.59 2004/02/27 20:41:45 marka Exp $ */
 
 #ifndef DNS_RDATA_H
 #define DNS_RDATA_H 1
@@ -96,6 +96,7 @@
 #include <isc/lang.h>
 
 #include <dns/types.h>
+#include <dns/name.h>
 
 ISC_LANG_BEGINDECLS
 
@@ -142,6 +143,11 @@ struct dns_rdata {
 /* Output explanatory comments. */
 #define DNS_STYLEFLAG_COMMENT		0x00000002U
 
+#define DNS_RDATA_DOWNCASE		DNS_NAME_DOWNCASE
+#define DNS_RDATA_CHECKNAMES		DNS_NAME_CHECKNAMES
+#define DNS_RDATA_CHECKNAMESFAIL	DNS_NAME_CHECKNAMESFAIL
+#define DNS_RDATA_CHECKREVERSE		DNS_NAME_CHECKREVERSE
+
 /***
  *** Initialization
  ***/
@@ -220,8 +226,7 @@ dns_rdata_toregion(const dns_rdata_t *rdata, isc_region_t *r);
 isc_result_t
 dns_rdata_fromwire(dns_rdata_t *rdata, dns_rdataclass_t rdclass,
 		   dns_rdatatype_t type, isc_buffer_t *source,
-		   dns_decompress_t *dctx,
-		   isc_boolean_t downcase,
+		   dns_decompress_t *dctx, unsigned int options,
 		   isc_buffer_t *target);
 /*
  * Copy the possibly-compressed rdata at source into the target region.
@@ -229,8 +234,9 @@ dns_rdata_fromwire(dns_rdata_t *rdata, dns_rdataclass_t rdclass,
  * Notes:
  *	Name decompression policy is controlled by 'dctx'.
  *
- *	If 'downcase' is true, any uppercase letters in domain names in
- * 	'source' will be downcased when they are copied into 'target'.
+ *	'options'
+ *	DNS_RDATA_DOWNCASE	downcase domain names when they are copied
+ *				into target.
  *
  * Requires:
  *
@@ -294,7 +300,7 @@ dns_rdata_towire(dns_rdata_t *rdata, dns_compress_t *cctx,
 isc_result_t
 dns_rdata_fromtext(dns_rdata_t *rdata, dns_rdataclass_t rdclass,
 		   dns_rdatatype_t type, isc_lex_t *lexer, dns_name_t *origin,
-		   isc_boolean_t downcase, isc_mem_t *mctx,
+		   unsigned int options, isc_mem_t *mctx,
 		   isc_buffer_t *target, dns_rdatacallbacks_t *callbacks);