Function nginx::EVP_CIPHER_meth_get_ctrl

pub unsafe extern "C" fn EVP_CIPHER_meth_get_ctrl(
    cipher: *const EVP_CIPHER
) -> Option<unsafe extern "C" fn(cipher: *mut EVP_CIPHER_CTX, arg1: c_int, arg2: c_int, arg3: *mut c_void) -> c_int>