Hi 
I look at couple example about using abstraction layer BIO over socket
and attach the SSL object to the BIO. When time to delete, they delete
SSL and socket only  without delete BIO. I wonder why ??

ssl  = SSL_new(ctx);
Sbio = BIO_new_sock(sock, BIO_NO_CLOSE):
SSL_set_bio(ssl, sbio,sbio);


At the delete time:

 SSL_shutdown(ssl);
SSL_free(ssl);
Close(s);

How about Sbio ? Please help me to understand this .

Thank You
Thao Dinh

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