如果客户端使用BIO_ *调用，是否需要在服务器上调用BIO_ *？(Are BIO_* calls on server required if the client uses BIO_* calls?)

 我正在尝试在C中实现一个简单的OpenSSL客户端/服务器模型，并对使用BIO_ *调用感到好奇，这些调用允许一些不错的功能与原始SSL_ *调用相比。 
 
 我对此比较陌生，所以我可能会看到它完全错误，但是可以在客户端上使用BIO_ *调用，而不是在服务器上使用它吗？ 或者要建立连接，必须在客户端和服务器上进行BIO_ *握手？ 

I'm trying to implement a simple OpenSSL client/server model in C, and curious about the use of the BIO_* calls that allow for some nice features versus the raw SSL_* calls.
 
I'm relatively new to this, so I could be looking at it completely wrong, but is it possible to use BIO_* calls on the client, and not use it on the server? Or for a connection to be established, a BIO_* handshake must occur on both client and server?

原文：https://stackoverflow.com/questions/32730254