cname: fix cname recursive query issue

src/Makefile

@@ -20,7 +20,12 @@ OBJS=smartdns.o fast_ping.o dns_client.o dns_server.o dns.o util.o tlog.o dns_co
 
 # cflags
 ifndef CFLAGS
-CFLAGS =-g -Wall -Wstrict-prototypes -fno-omit-frame-pointer -Wstrict-aliasing -funwind-tables -Wmissing-prototypes -Wshadow -Wextra -Wno-unused-parameter -Wno-implicit-fallthrough
+ ifdef DEBUG
+  CFLAGS = -g
+ else
+  CFLAGS = -O2 -g 
+ endif
+CFLAGS +=-Wall -Wstrict-prototypes -fno-omit-frame-pointer -Wstrict-aliasing -funwind-tables -Wmissing-prototypes -Wshadow -Wextra -Wno-unused-parameter -Wno-implicit-fallthrough
 endif
 override CFLAGS +=-Iinclude
 override CFLAGS += -DBASE_FILE_NAME='"$(notdir $<)"'
@@ -34,9 +39,9 @@ override CXXFLAGS +=-Iinclude
 
 # ldflags
 ifeq ($(STATIC), yes)
-override LDFLAGS += -lssl -lcrypto -Wl,--whole-archive -lpthread -Wl,--no-whole-archive -ldl -static
+ override LDFLAGS += -lssl -lcrypto -Wl,--whole-archive -lpthread -Wl,--no-whole-archive -ldl -static
 else
-override LDFLAGS += -lssl -lcrypto -lpthread -ldl
+ override LDFLAGS += -lssl -lcrypto -lpthread -ldl
 endif
 
 .PHONY: all clean

src/dns_server.c

@@ -1588,6 +1588,7 @@ static int _dns_result_child_post(struct dns_server_post_context *context)
 		parent_context.reply_ttl = context->reply_ttl;
 		parent_context.skip_notify_count = context->skip_notify_count;
 		parent_context.select_all_best_ip = 1;
+		parent_context.no_release_parent = context->no_release_parent;
 
 		_dns_request_post(&parent_context);
 		ret = _dns_server_reply_all_pending_list(parent_request, &parent_context);
@@ -1721,13 +1722,13 @@ static int _dns_server_reply_all_pending_list(struct dns_request *request, struc
 		struct dns_server_post_context context_pending;
 		_dns_server_post_context_init_from(&context_pending, req, context->packet, context->inpacket,
 										   context->inpacket_len);
-		_dns_server_get_answer(&context_pending);
 		req->dualstack_selection = request->dualstack_selection;
 		req->dualstack_selection_query = request->dualstack_selection_query;
 		req->dualstack_selection_force_soa = request->dualstack_selection_force_soa;
 		req->dualstack_selection_has_ip = request->dualstack_selection_has_ip;
 		req->dualstack_selection_ping_time = request->dualstack_selection_ping_time;
 		req->ping_time = request->ping_time;
+		_dns_server_get_answer(&context_pending);
 
 		context_pending.do_cache = 0;
 		context_pending.do_audit = context->do_audit;
@@ -1735,6 +1736,7 @@ static int _dns_server_reply_all_pending_list(struct dns_request *request, struc
 		context_pending.do_force_soa = context->do_force_soa;
 		context_pending.do_ipset = 0;
 		context_pending.reply_ttl = request->ip_ttl;
+		context_pending.no_release_parent = context->no_release_parent;
 		_dns_server_reply_passthrough(&context_pending);
 
 		req->request_pending_list = NULL;