Re: error:140770FC:SSL routines:SSL23_GET_SERVER_HELLO:unknown protocol

[gangadhar]

Hello,

I have seen your update. Try Using SSLv3_client_method() instead of
SSLv23_client_method(),if you did not try it previously.

Refer this Link
https://rt.openssl.org/Ticket/Display.html?id=2240user=guestpass=guest

Regards
Gangadhar




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RE: error:140770FC:SSL routines:SSL23_GET_SERVER_HELLO:unknown protocol

[Dave Thompson]

 From: owner-openssl-us...@openssl.org On Behalf Of Rij
 Sent: Thursday, 23 July, 2009 21:17

 I have a simple client operating in blocking mode. When I try 
 to connect to the server, I get the error:
 error:140770FC:SSL routines:SSL23_GET_SERVER_HELLO:unknown protocol
 
Sounds like your server is not responding with valid SSL.
Are you sure you are connecting to the correct server and port?

Can you try connecting with openssl s_client -debug?
Does it get data that looks like some other protocol
(at best, a readable one)? Maybe the server requires 
STARTTLS or similar interaction BEFORE starting TLS?

 Anybody aware of this error? I had previously written both a 
 blocking and non-blocking client with help of people from 
 this forum (most notably David). Now, the code doesn't run. 
 Here's a snapshot of the code.
 
   SSL_library_init();
   ERR_load_BIO_strings();
   SSL_load_error_strings();
   OpenSSL_add_all_algorithms();

Asides: BIO errstrings are (also) loaded by SSL_load_error_strings, 
and if you're (only) doing SSL you shouldn't need any algorithms 
not included by SSL_library_init. But these (should) do no harm.



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Re: error:140770FC:SSL routines:SSL23_GET_SERVER_HELLO:unknown protocol

[Rij]

Hi Dave,

Thanks for your reply. I was able to fix it a while ago. And your
guess is correct. My port number was getting messed up. And extra
thinks for the tip on the libraries. :)

On Mon, Jul 27, 2009 at 1:31 PM, Dave
Thompsondave.thomp...@princetonpayments.com wrote:
 From: owner-openssl-us...@openssl.org On Behalf Of Rij
 Sent: Thursday, 23 July, 2009 21:17

 I have a simple client operating in blocking mode. When I try
 to connect to the server, I get the error:
 error:140770FC:SSL routines:SSL23_GET_SERVER_HELLO:unknown protocol

 Sounds like your server is not responding with valid SSL.
 Are you sure you are connecting to the correct server and port?

 Can you try connecting with openssl s_client -debug?
 Does it get data that looks like some other protocol
 (at best, a readable one)? Maybe the server requires
 STARTTLS or similar interaction BEFORE starting TLS?

 Anybody aware of this error? I had previously written both a
 blocking and non-blocking client with help of people from
 this forum (most notably David). Now, the code doesn't run.
 Here's a snapshot of the code.

               SSL_library_init();
               ERR_load_BIO_strings();
               SSL_load_error_strings();
               OpenSSL_add_all_algorithms();

 Asides: BIO errstrings are (also) loaded by SSL_load_error_strings,
 and if you're (only) doing SSL you shouldn't need any algorithms
 not included by SSL_library_init. But these (should) do no harm.



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error:140770FC:SSL routines:SSL23_GET_SERVER_HELLO:unknown protocol

[Rij]

Hello,

I have a simple client operating in blocking mode. When I try to
connect to the server, I get the error:
error:140770FC:SSL routines:SSL23_GET_SERVER_HELLO:unknown protocol

Anybody aware of this error? I had previously written both a blocking
and non-blocking client with help of people from this forum (most
notably David). Now, the code doesn't run. Here's a snapshot of the
code.

SSL_library_init();
ERR_load_BIO_strings();
SSL_load_error_strings();
OpenSSL_add_all_algorithms();
ctx = SSL_CTX_new(SSLv23_client_method());
if(!SSL_CTX_load_verify_locations(ctx, mycert.pem, NULL))
{
SSL_CTX_free(ctx);
return NULL;
}
ssl = SSL_new(ctx);
sbio = BIO_new_socket(server_socket,BIO_NOCLOSE);
SSL_set_bio(handle-ssl,sbio,sbio);
SSL_connect(handle-ssl);

bytes_sent = SSL_write(handle-ssl, (handle-content +
handle-offset), handle-length);
switch(SSL_get_error(handle-ssl, bytes_sent))
{
case SSL_ERROR_NONE:
printf(Success\n);
break;
case SSL_ERROR_SSL:
printf(general error: %s\n,
ERR_error_string(ERR_get_error(), NULL));
break;
}
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