Handle async notification of address changes using the event system.

src/dnsmasq.c

@@ -917,10 +917,10 @@ int main (int argc, char **argv)
 
 #if defined(HAVE_LINUX_NETWORK)
       if (FD_ISSET(daemon->netlinkfd, &rset))
-	netlink_multicast(now);
+	netlink_multicast();
 #elif defined(HAVE_BSD_NETWORK)
       if (FD_ISSET(daemon->routefd, &rset))
-	route_sock(now);
+	route_sock();
 #endif
 
       /* Check for changes to resolv files once per second max. */
@@ -1037,6 +1037,11 @@ void send_alarm(time_t event, time_t now)
     }
 }
 
+void send_newaddr(void)
+{
+  send_event(pipewrite, EVENT_NEWADDR, 0, NULL);
+}
+
 void send_event(int fd, int event, int data, char *msg)
 {
   struct event_desc ev;
@@ -1230,6 +1235,10 @@ static void async_event(int pipe, time_t now)
 	if (daemon->log_file != NULL)
 	  log_reopen(daemon->log_file);
 	break;
+
+      case EVENT_NEWADDR:
+	newaddress(now);
+	break;
 	
       case EVENT_TERM:
 	/* Knock all our children on the head. */