Function DER_cert_to_PEM_cert

crates/stdlib/src/ssl.rs:4944–4953

(der_cert: ArgBytesLike, vm: &VirtualMachine)

    #[pyfunction]
    fn DER_cert_to_PEM_cert(der_cert: ArgBytesLike, vm: &VirtualMachine) -> PyResult<PyStrRef> {
        let der_bytes = der_cert.borrow_buf();
        let bytes_slice: &[u8] = der_bytes.as_ref();

        // Use pem-rfc7468 for RFC 7468 compliant PEM encoding
        let pem_str = encode_string("CERTIFICATE", LineEnding::LF, bytes_slice)
            .map_err(|e| vm.new_value_error(format!("PEM encoding failed: {e}")))?;

        Ok(vm.ctx.new_str(pem_str))
    }

    #[pyfunction]
    fn PEM_cert_to_DER_cert(pem_cert: PyUtf8StrRef, vm: &VirtualMachine) -> PyResult<PyBytesRef> {