Merge pull request #605 from NetoLe/master

handle exceptfds in networklayer_tcp select()

plugins/networklayer_tcp.c

@@ -391,11 +391,12 @@ ServerNetworkLayerTCP_start(UA_ServerNetworkLayer *nl, UA_Logger logger) {
 static size_t
 ServerNetworkLayerTCP_getJobs(UA_ServerNetworkLayer *nl, UA_Job **jobs, UA_UInt16 timeout) {
     ServerNetworkLayerTCP *layer = nl->handle;
-    fd_set fdset;
+    fd_set fdset, errset;
     UA_Int32 highestfd = setFDSet(layer, &fdset);
+    setFDSet(layer, &errset);
     struct timeval tmptv = {0, timeout * 1000};
     UA_Int32 resultsize;
-    resultsize = select(highestfd+1, &fdset, NULL, NULL, &tmptv);
+    resultsize = select(highestfd+1, &fdset, NULL, &errset, &tmptv);
     if(resultsize < 0) {
         *jobs = NULL;
         return 0;
@@ -426,8 +427,9 @@ ServerNetworkLayerTCP_getJobs(UA_ServerNetworkLayer *nl, UA_Job **jobs, UA_UInt1
     size_t j = 0;
     UA_ByteString buf = UA_BYTESTRING_NULL;
     for(size_t i = 0; i < layer->mappingsSize && j < (size_t)resultsize; i++) {
-        if(!UA_fd_isset(layer->mappings[i].sockfd, &fdset))
-            continue;
+        if(!UA_fd_isset(layer->mappings[i].sockfd, &errset) && !UA_fd_isset(layer->mappings[i].sockfd, &fdset)) {
+          continue;
+        }
         UA_StatusCode retval = socket_recv(layer->mappings[i].connection, &buf, 0);
         if(retval == UA_STATUSCODE_GOOD) {
             js[j].job.binaryMessage.connection = layer->mappings[i].connection;