updates.

[silc.git] / lib / silcutil / win32 / silcwin32sockconn.c

diff --git a/lib/silcutil/win32/silcwin32sockconn.c b/lib/silcutil/win32/silcwin32sockconn.c
index c78640308398c344bde074d1226a055db1d60693..44115731d1865fb38923db403bfde363122a2811 100644 (file)
--- a/lib/silcutil/win32/silcwin32sockconn.c
+++ b/lib/silcutil/win32/silcwin32sockconn.c
@@ -41,11 +41,9 @@ int silc_socket_write(SilcSocketConnection sock)
       err = WSAGetLastError();
       if (err == WSAEWOULDBLOCK) {
        SILC_LOG_DEBUG(("Could not write immediately, will do it later"));
-       silc_net_set_socket_nonblock(fd);
        return -2;
       }
       SILC_LOG_ERROR(("Cannot write to socket: %d", (int)fd));
-      silc_net_set_socket_nonblock(fd);
       return -1;
     }
 
@@ -54,7 +52,6 @@ int silc_socket_write(SilcSocketConnection sock)
 
   SILC_LOG_DEBUG(("Wrote data %d bytes", ret));
 
-  silc_net_set_socket_nonblock(fd);
   return ret;
 }
 
@@ -68,25 +65,32 @@ int silc_socket_read(SilcSocketConnection sock)
   int len = 0, err;
   unsigned char buf[SILC_SOCKET_READ_SIZE];
   SOCKET fd = sock->sock;
+  int argp;
 
   SILC_LOG_DEBUG(("Reading data from socket %d", fd));
 
+  /* Check whether there is data available, without calling recv(). */
+  ioctlsocket(fd, FIONREAD, (unsigned long *)&argp);
+  if (argp == 0) {
+    /* Is this kludge or what? Without this thing this contraption
+       does not work at all!?. */
+    SleepEx(1, TRUE);
+    SILC_LOG_DEBUG(("Could not read immediately, will do it later"));
+    return -2;
+  }
+
   /* Read the data from the socket. */
   len = recv(fd, buf, sizeof(buf), 0);
   if (len == SOCKET_ERROR) {
     err = WSAGetLastError();
     if (err == WSAEWOULDBLOCK || err == WSAEINTR) {
       SILC_LOG_DEBUG(("Could not read immediately, will do it later"));
-      silc_net_set_socket_nonblock(fd);
       return -2;
     }
     SILC_LOG_ERROR(("Cannot read from socket: %d", (int)fd));
-    silc_net_set_socket_nonblock(fd);
     return -1;
   }
 
-  silc_net_set_socket_nonblock(fd);
-
   if (!len)
     return 0;