EnableIPv6:    c.EnableIPv6,
		RedirectDNS:   c.RedirectDNS,
	}
}

func NewIptablesConfigurator(cfg *Config, ext dep.Dependencies, nlDeps NetlinkDependencies) (*IptablesConfigurator, error) {
	if cfg == nil {
		cfg = &Config{
			RestoreFormat: true,
		}
	}

	configurator := &IptablesConfigurator{
		ext:    ext,
		nlDeps: nlDeps,
		cfg:    cfg,
	}

	// By detecting iptables versions *here* once-for-all we are

			userDefined["etag"] = opts.PreserveETag
		}
	}

	// Guess content-type from the extension if possible.
	if userDefined["content-type"] == "" {
		userDefined["content-type"] = mimedb.TypeByExtension(path.Ext(object))
	}

	// if storageClass is standard no need to save it as part of metadata.
	if userDefined[xhttp.AmzStorageClass] == storageclass.STANDARD {
		delete(userDefined, xhttp.AmzStorageClass)
	}