openSSL 1.1.1n handhshake returning error code 2

[venugchary]

I am using OpenSSL 1.1.1n version with Azure C SDK and facing below error code 2 while handshaking with iothub end point. Looks like below code inside adaptor/tlsio_openssl.c is not handled for Error Code 2 (SSL_ERROR_WANT_READ). Can you help how to handle this please?

// Non-NULL tls_io_instance is guaranteed by callers.
// We are in TLSIO_STATE_IN_HANDSHAKE when entering this method.
static void send_handshake_bytes(TLS_IO_INSTANCE* tls_io_instance)
{
int hsret;
// ERR_clear_error must be called before any call that might set an
// SSL_get_error result
ERR_clear_error();
hsret = SSL_do_handshake(tls_io_instance->ssl);
if (hsret != SSL_DO_HANDSHAKE_SUCCESS)
{

[venugchary]

Any input is really appreciated.

[RLeclair]

Hi @venugchary, we are looking into the issue at the moment, we appreciate your patience

[RLeclair]

Hi @venugchary, I looked at the portion of code you mentioned above and attempted to repro with my debugger but have not found a way to replicate a failure stemming from SSL_ERROR_WANT_READ.

What error message are you seeing? Can you provide logs?