some fixes in socket condition detection

src/i_socket.c

@@ -57,7 +57,8 @@ TR_socketRecv(void * _this, size_t size)
 
     if (! remote_data) {
         switch (errno) {
-			case (EAGAIN|EWOULDBLOCK):
+			case EAGAIN:
+			// case EWOULDBLOCK: // is the same value as EAGAIN
 				TR_delete(remote_data);
                 return TR_emptyRemoteData;
 
@@ -96,17 +97,25 @@ TR_socketSend(void * _this, TR_RemoteData data)
                 // of the whole application...
                 return -1;
 
-            case (EAGAIN|EWOULDBLOCK):
+			case EAGAIN:
+			//case EWOULDBLOCK: // is the same value as EAGAIN
                 return FALSE;
 
+            default:
             case ECONNRESET:
+            case EPIPE:
                 // this is a remote close...
                 return -2;
-
-            default:
-                return -2;
         }
-    }
+    } else if (size == 0) {
+		/*
+		 * It might happen that a write returns 0. In that case the remote
+		 * end was not ready to accept the data. This might be handled
+		 * differently by the managing code so I return a separate value
+		 * for this.
+		 */
+		return -3;
+	}
 
     return size;
 }

src/socket_accept.c

@@ -54,7 +54,6 @@ TR_socketAccept(TR_TcpSocket this)
 	//fcntl(remote->handle, F_SETFL, flags | O_NONBLOCK);
 
 	if (-1 == remote->handle) {
-		perror("accept");
 		TR_delete(remote);
 	} else {
 		TR_socketAddrIpStr(remote, remote->host, TR_MAX_HOST);