gsasl_client_step - API function
int gsasl_client_step(Gsasl_session * sctx, const char * input, size_t input_len, char * output, size_t * output_len);
Perform one step of SASL authentication in client. This reads data from server (specified with input and input_len), processes it (potentially invoking callbacks to the application), and writes data to server (into variables output and output_len).
The contents of the output buffer is unspecified if this functions returns anything other than GSASL_NEEDS_MORE.
Return value: Returns GSASL_OK if authenticated terminated successfully, GSASL_NEEDS_MORE if more data is needed, or error code.
Use gsasl_step() instead.
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