Hello,
>
> I'm trying to create a little smtp client that could deal with ssl
> encryption within a c++ application.
> To do that i'm using openssl and following the smtp protocol.
>
> As i understood, i have to initialise the library first and several
> other things. I'm doing that:
>
> SSL_load_error_strings();
> SSL_library_init();
You may try here to initialize PRNG, for example with command:
RAND_load_file("/dev/urandom", 1024);
(end check return code)
> ctx=SSL_CTX_new(SSLv23_method());
> SSL_CTX_set_options(ctx, SSL_OP_ALL);
You may try:
ctx=SSL_CTX_new(SSLv23_client_method());
(end check return code)
> Then i'm openning a non-secured connection to the server with the BIO
> objects.
>
> bio=BIO_new_connect((char*)server_address.c_str());
> if ( BIO_do_connect(bio) <= 0 )
> {
> valid=false;
> return false;
> }
>
> At that point, i can use the bio object to communicate with the
> server. I can send an email on a non protected server (so my smtp
> protocol is ok).
> At the right time i'm sending STARTTLS to the server and it's replying
> 220 Ready for TLS.
Looks good, you may test this with openssl command using:
$ openssl s_client -connect host:25 -starttls smtp
to check that server behaves correctly.
> Then, i'm doing that:
>
> SSL * connection=SSL_new(ctx);
> SSL_set_bio(connection,bio,bio);
> SSL_set_connect_state(connection);
> if( SSL_do_handshake(connection) <=0 )
> {
> return false;
> }
All I can say is that using connect(), SSL_set_fd() and SSL_connect()
works in this situation.
> Don't know if it's important because the compiler never stopped on
> it.
> After that i'm sending a EHLO [xxx.xxx.xxx.xxx] command as specified
> in the rfc for smtp with STARTTLS.
> Then... nothing!!!!
> The socket is still opened i can write and read on it but the server
> never replied anything.
Are you using SSL_read()/SSL_write() for that ?
Best regards,
Marek Marcola <[EMAIL PROTECTED]>
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