Bug fix: when using tls, if a stanza is bigger than the buffer of 4096 in event.c, the stanza will not be read as select will return 0 on the ssl socket and the data will be in ssl buffers. Partial fix, only for Linux for now

src/tls_gnutls.c

@@ -107,6 +107,11 @@ int tls_error(tls_t *tls)
     return 0;
 }
 
+int tls_pending(tls_t *tls)
+{
+    return gnutls_record_check_pending (tls->session);
+}
+
 int tls_read(tls_t *tls, void * const buff, const size_t len)
 {
     int ret;