OpenSSL::SSL::SSLContext#options

static VALUE
ossl_sslctx_get_options(VALUE self)
{
    SSL_CTX *ctx;
    GetSSLCTX(self, ctx);

    /*
     * SSL_CTX_get_options() returns different types in libssl variants, and
     * we want to treat them as a non-negative Integer in Ruby:
     *   - uint64_t in OpenSSL >= 3
     *   - unsigned long in OpenSSL >= 1.1
     *   - long in OpenSSL <= 1.0.2 and LibreSSL 4.3 (latest), with all 32 bits
     *     used for options.
     *   - uint32_t in AWS-LC 5.0.0 (latest)
     */
#ifdef OSSL_SIZEOF_SSL_OPTIONS_IS_8
    return UINT64T2NUM((uint64_t)SSL_CTX_get_options(ctx));
#else
    return UINT2NUM((uint32_t)SSL_CTX_get_options(ctx));
#endif
}