director: If doveadm connection disconnects before handshake, don't loop forever.

diff --git a/src/director/doveadm-connection.c b/src/director/doveadm-connection.c
index 8bc805844acc2be7e279350882036bcb5928396a..b875576f70af775dd73fdcf64e71eae3659bc260 100644 (file)
--- a/src/director/doveadm-connection.c
+++ b/src/director/doveadm-connection.c
@@ -235,8 +235,11 @@ static void doveadm_connection_input(struct doveadm_connection *conn)
        bool ret = TRUE;
 
        if (!conn->handshaked) {
-               if ((line = i_stream_read_next_line(conn->input)) == NULL)
+               if ((line = i_stream_read_next_line(conn->input)) == NULL) {
+                       if (conn->input->eof || conn->input->stream_errno != 0)
+                               doveadm_connection_deinit(&conn);
                        return;
+               }
 
                if (!version_string_verify(line, "director-doveadm",
                                           DOVEADM_PROTOCOL_VERSION_MAJOR)) {