{ stdenv, fetchurl }: stdenv.mkDerivation rec { pname = "grepcidr"; version = "2.0"; src = fetchurl { url = "http://www.pc-tools.net/files/unix/${pname}-${version}.tar.gz"; sha256 = "1yzpa1nigmmp4hir6377hrkpp0z6jnxgccaw2jbqgydbglvnm231"; }; installFlags = [ "PREFIX=$(out)" ]; meta = with stdenv.lib; { description = "Filter IPv4 and IPv6 addresses matching CIDR patterns"; homepage = http://www.pc-tools.net/unix/grepcidr/; license = licenses.gpl3; platforms = platforms.unix; maintainers = [ maintainers.fadenb ]; }; }