BIO *internal_bio, *network_bio;
...
- BIO_new_bio_pair(internal_bio, 0, network_bio, 0);
+ BIO_new_bio_pair(&internal_bio, 0, &network_bio, 0);
SSL_set_bio(ssl, internal_bio, internal_bio);
- SSL_operations();
+ SSL_operations(); //e.g SSL_read and SSL_write
...
application | TLS-engine
| /\ ||
| || \/
| BIO-pair (internal_bio)
- +----------< BIO-pair (network_bio)
+ | BIO-pair (network_bio)
+ | || /\
+ | \/ ||
+ +-----------< BIO_operations()
| |
- socket |
+ | |
+ socket
...
SSL_free(ssl); /* implicitly frees internal_bio */