Function nginx::EVP_CIPHER_meth_get_do_cipher

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