fname := f.Name()
		defer os.Remove(fname)

		out := output(parseMobileProvision(mp))
		_, err = f.Write(out)
		check(err)
		check(f.Close())

		cert, err := plistExtract(fname, "DeveloperCertificates:0")
		check(err)
		pcert, err := x509.ParseCertificate(cert)
		check(err)
		fmt.Printf("export GOIOS_DEV_ID=\"%s\"\n", pcert.Subject.CommonName)

		appID, err := plistExtract(fname, "Entitlements:application-identifier")

		"PK\x01\x02\x14\x00\x14\x00\b\b\b\x004\x9d3?\xbfP\x96b\x86\x04\x00\x00\xb2\x06\x00\x00\x11\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xa9J\x02\x00META-INF/CERT.RSA",
	}
	for i, s := range dirEnts {
		var f File
		err := readDirectoryHeader(&f, strings.NewReader(s))
		if err != nil {