Original commit message from CVS:
* gst/librfb/gstrfbsrc.c: (gst_rfbsrc_get): Check return values
to avoid segfaults.
* gst/librfb/rfbbytestream.c: (rfb_bytestream_get),
(rfb_bytestream_check), (rfb_bytestream_copy_nocheck),
(rfb_bytestream_read), (rfb_bytestream_peek):
* gst/librfb/rfbbytestream.h:
* gst/librfb/rfbdecoder.c: (rfb_socket_get_buffer),
(rfb_socket_send_buffer), (rfb_decoder_iterate),
(rfb_decoder_state_wait_for_protocol_version),
(rfb_decoder_state_wait_for_security),
(rfb_decoder_state_wait_for_server_initialisation),
(rfb_decoder_state_normal), (rfb_decoder_state_framebuffer_update):