Function nginx::SSL_CTX_get_security_callback

pub unsafe extern "C" fn SSL_CTX_get_security_callback(
    ctx: *const SSL_CTX
) -> Option<unsafe extern "C" fn(ctx: *const SSL, arg1: *const SSL_CTX, arg2: c_int, arg3: c_int, arg4: c_int, arg5: *mut c_void, arg6: *mut c_void) -> c_int>