man SSL_get_rbio () - get BIO linked to an SSL object
NAME
SSL_get_rbio - get BIO linked to an SSL object
SYNOPSIS
#include <openssl/ssl.h>
BIO *SSL_get_rbio(SSL *ssl); BIO *SSL_get_wbio(SSL *ssl);
DESCRIPTION
SSL_get_rbio() and SSL_get_wbio() return pointers to the BIOs for the read or the write channel, which can be different. The reference count of the BIO is not incremented.
RETURN VALUES
The following return values can occur:
- NULL
- No BIO was connected to the SSL object
- Any other pointer
- The BIO linked to ssl.