Bugfix in stream.c (stream_wait) should return true if we have something in the cache.

 /* GNU Mailutils -- a suite of utilities for electronic mail
-   Copyright (C) 1999, 2000 Free Software Foundation, Inc.
+   Copyright (C) 1999, 2000, 2004 Free Software Foundation, Inc.
 
    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public

@@ -774,6 +774,18 @@ stream_wait (stream_t stream, int *pflags, struct timeval *tvp)
 {
   if (stream == NULL)
     return EINVAL;
+
+  /* Take to acount if we have any buffering.  */
+  if ((*pflags) & MU_STREAM_READY_RD)
+    {
+      if (stream->rbuffer.count > 0)
+	{
+	  *pflags = 0;
+	  *pflags |= MU_STREAM_READY_RD;
+	  return 0;
+	}
+    }
+
   if (stream->_wait)
     return stream->_wait (stream, pflags, tvp);
   return ENOSYS;