4104. [bug] Address uninitialized elements. [RT #39252]

(cherry picked from commit f1a261ba2d)

CHANGES

@@ -1,3 +1,5 @@
+4104.	[bug]		Address uninitialized elements. [RT #39252]
+
 4102.	[bug]		Fix a use after free bug introduced in change
 			#4094.  [RT #39281]
 

lib/dns/rbtdb.c

@@ -1514,6 +1514,7 @@ static inline void
 init_rdataset(dns_rbtdb_t *rbtdb, rdatasetheader_t *h) {
 	ISC_LINK_INIT(h, link);
 	h->heap_index = 0;
+	h->rdh_ttl = 0;
 	h->is_mmapped = 0;
 	h->next_is_relative = 0;
 	h->node_is_relative = 0;

lib/dns/zone.c

@@ -1031,6 +1031,7 @@ dns_zone_create(dns_zone_t **zonep, isc_mem_t *mctx) {
 	zone->rss_oldver = NULL;
 	zone->rss_event = NULL;
 	zone->rss_state = NULL;
+	zone->updatemethod = dns_updatemethod_increment;
 
 	zone->magic = ZONE_MAGIC;
 
@@ -3810,6 +3811,8 @@ update_soa_serial(dns_db_t *db, dns_dbversion_t *ver, dns_diff_t *diff,
 	isc_uint32_t serial;
 	isc_result_t result;
 
+	INSIST(method != dns_updatemethod_none);
+
 	CHECK(dns_db_createsoatuple(db, ver, mctx, DNS_DIFFOP_DEL, &deltuple));
 	CHECK(dns_difftuple_copy(deltuple, &addtuple));
 	addtuple->op = DNS_DIFFOP_ADD;

lib/isc/unix/socket.c

@@ -2266,6 +2266,7 @@ allocate_socket(isc__socketmgr_t *manager, isc_sockettype_t type,
 	sock->dscp = 0;		/* TOS/TCLASS is zero until set. */
 	sock->dupped = 0;
 	sock->statsindex = NULL;
+	sock->active = 0;
 
 	ISC_LINK_INIT(sock, link);
 
@@ -2941,7 +2942,6 @@ socket_create(isc_socketmgr_t *manager0, int pf, isc_sockettype_t type,
 		INSIST(0);
 	}
 
-	sock->active = 0;
 	sock->pf = pf;
 
 	result = opensocket(manager, sock, (isc__socket_t *)dup_socket);

lib/isccfg/namedconf.c

@@ -783,7 +783,10 @@ parse_serverid(cfg_parser_t *pctx, const cfg_type_t *type,
 		return (cfg_create_obj(pctx, &cfg_type_none, ret));
 	if (pctx->token.type == isc_tokentype_string &&
 	    strcasecmp(TOKEN_STRING(pctx), "hostname") == 0) {
-		return (cfg_create_obj(pctx, &cfg_type_hostname, ret));
+		result = cfg_create_obj(pctx, &cfg_type_hostname, ret);
+		if (result == ISC_R_SUCCESS)
+			(*ret)->value.boolean = ISC_TRUE;
+		return (result);
 	}
 	cfg_ungettoken(pctx);
 	return (cfg_parse_qstring(pctx, type, ret));