TFTPIsOpened Function

TFTP_RESULT TFTPIsOpened();

Waits for ARP reply and opens a UDP socket to perform further TFTP operations.

TFTPOpen() is already called.

TFTP_OK if previous call to TFTPOpen is complete 

TFTP_TIMEOUT if remote host did not respond to previous ARP request. 

TFTP_NOT_READY if remote has still not responded and timeout has not expired.

None

Once opened, application may keep TFTP socket open and future TFTP operations. If TFTPClose() is called to close the connection TFTPOpen() must be called again before performing any other TFTP operations.