Handle correctly that config is only read at initialization, whereas hosts files are read also on reload (SIGHUP)

Signed-off-by: DL6ER <dl6er@dl6er.de>

FTL.h

@@ -109,6 +109,7 @@ typedef struct {
 	int overTime_MAX;
 	int wildcarddomains_MAX;
 	int gravity;
+	int gravity_conf;
 	int overTime;
 	int querytype[7];
 	int wildcarddomains;

dnsmasq_interface.c

@@ -250,24 +250,25 @@ void FTL_read_hosts(char * filename, int addr_count)
 {
 	// Interpret hosts files that have been read by dnsmasq
 	// We ignore other read lists like /etc/hosts
-	enable_thread_lock();
+	if(counters.gravity == 0 && counters.gravity_conf > 0)
+		counters.gravity += counters.gravity_conf;
+
 	if(filename != NULL && (strstr(filename, "/gravity.list") != NULL ||
 	                        strstr(filename, "/black.list") != NULL))
 	{
 		counters.gravity += addr_count;
 	}
-	disable_thread_lock();
 }
 
 void FTL_read_config(int flags)
 {
 	// Interpret blocking configuration that have been read by dnsmasq
-	enable_thread_lock();
+	// No need for thread locks here as this happens while the resolver
+	// is not yet ready
 	if((flags & SERV_HAS_DOMAIN) && (flags & SERV_NO_ADDR))
-		counters.gravity++; // Blacklist
-	else if((flags & SERV_USE_RESOLV) && counters.gravity > 0)
-		counters.gravity--; // Whitelist
-	disable_thread_lock();
+		counters.gravity_conf++; // Blacklist
+	else if((flags & SERV_USE_RESOLV) && counters.gravity_conf > 0)
+		counters.gravity_conf--; // Whitelist
 }
 
 void FTL_reply(unsigned short flags, char *name, struct all_addr *addr, unsigned long ttl, int id)