Hi all,
I am developing a network application base on OpenSSL-0.9.8.b, on Redhat
Linux.
I have added OpenSSL API in my source code, but there is something wrong
when connecting to server. I have traced the source code, find that:
SSL_CTX_new(SSLv23_client_method()); return NULL.;
I really cannot figure out the reason return NULL.
Then I have try another way to initialize SSL:
I use :
SSL_library_init();
SSL_load_error_strings();
instead
SSL_load_error_strings();
ERR_load_BIO_strings();
OpenSSL_add_all_algorithms();
the result is even worse: after run
SSL_CTX_new(SSLv23_client_method()); the program will quit with exception.
So if anyone can tell me why this error happens?How can I initialize
OpenSSL correctly?Any sample code is better.
Thanks a lot!
The following is picked out from my source code. Please refer to it.
-----------------------------part of source code
---------------------------------------------
int SSLOpen(ConnectCtrl *ctrl)
{
SSL *ssl;
int result;
SSLOption *pOpt = &(ctrl->sslOpt);
/* SSL Global Initialization */
SSL_load_error_strings();
ERR_load_BIO_strings();
OpenSSL_add_all_algorithms();
/* Create our context*/
_ctx = SSL_CTX_new(SSLv23_client_method());
if(_ctx == NULL)
{
result = SSL_ERROR_CREATE_NEW_CTX;
czEmail_Report("SSL create new contex ERROR!", result);
return result;
}
...
return 0;
}
-----------------------------part of source code
end---------------------------------------------
