I am trying to implement DTLS with PSK security in Delphi using the OpenSSL library. The C++ example I am basing this on calls "BIO_set_conn_hostname" and "BIO_get_ssl" but these functions do not appear to be in "libssl-1_1.dll". The OpenSSL documentation suggest that these functions should be in version 1.1 but I have interrogated the DLL and they are definitely not there - where should I find them?
BIO_set_conn_hostname & BIO_get_ssl missing from libssl-1_1.dll (OpenSSL)
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Both of these are C macros defined in openssl/bio.h:
Credit to Viktor Dukhovni who answered this on the openSSL mailing list.