Function libcryptsetup_rs_sys::crypt_volume_key_get

pub unsafe extern "C" fn crypt_volume_key_get(
    cd: *mut crypt_device,
    keyslot: c_int,
    volume_key: *mut c_char,
    volume_key_size: *mut usize,
    passphrase: *const c_char,
    passphrase_size: usize
) -> c_int