Hi All,
I am trying to connect to "smtp.gmail.com" with port "465".
With OpenSSL 1.0.2p, I don't see any issue. SSL_connect is always successful. Method used is TLSv1_method.
But with the openSSL to 1.1.1m and OpenSSL 3.0.7, I am seeing below errors.
SSL_connect err = error:00000005:lib(0):func(0):DH lib
(or)
SSL_connect err = error:00000005:lib(0)::reason(5)
(or)
SSL_connect err = error:00000001:lib(0):func(0):reason(1)
Here I am using the TLS_method.
Do we need to set anything before the SSL_connect call? Am I missing something? Please advise.
Surprisingly it worked 2/20 times.
Can we print detailed information about errors/ debugs with any SSL set call? Please let me know.
Below is the code for TLS connection:
ctx=SSL_CTX_new(TLS_method());
if (ctx == NULL)
{
SocketClose(sd);
return FAILURE;
}
con=SSL_new(ctx);
if(con == NULL)
{
SSL_CTX_free(ctx);
SocketClose(sd);
return FAILURE;
}
SSL_set_fd (con, sd);
err = SSL_connect(con);
if(err == -1)
{
err2 = SSL_get_error(con, err);
printf("\r\nSSL_connect err = %s", ERR_error_string(err2, 0));
SSL_shutdown(con);
SSL_free(con);
SocketClose(sd);
return FAILURE;
}
printf("TLS CONNECTION IS SUCCESSFUL");
/* Data send and receive */
/* Close the connection */
if (con != NULL)
{
SSL_shutdown(con);
SSL_free(con);
SocketClose(sd);
}
Thanks in advance.
Thanks & Regards,
Samiya khanum
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