--- /root/nss_ldap-253.ebuild	2006-11-28 09:51:45.000000000 +0200
+++ nss_ldap-253.ebuild	2006-11-28 10:54:46.000000000 +0200
@@ -68,3 +68,45 @@
 		COPYING CVSVersionInfo.txt README nsswitch.ldap certutil
 	docinto docs; dodoc doc/*
 }
+
+pkg_postinst() {
+	elog "You can use emerge --config =${PF} to automatically add"
+	elog "ldap to your ${ROOT}etc/nsswitch.conf"
+}
+
+pkg_config() {
+	local ns=${ROOT}etc/nsswitch.conf
+	cp "${ns}" "${T}" || die "Could not copy ${ns} to ${T}"
+	local nst="${T}/nsswitch.conf"
+
+	einfo "Configuring passwd shadow and group databases to use ldap."
+	einfo "If you want to use ldap for other uses, please configure"
+	einfo "${ns} manually."
+	einfo ""
+
+	for var in passwd shadow group; do
+		local match=$(egrep "^${var}:.*ldap" "${nst}")
+		if [[ -z "${match}" ]]; then
+			sed -e "s/^${var}:.*/& ldap/" -i "${nst}"
+		else
+			eerror "Ldap already found:"
+			eerror "${match}"
+		fi	
+	done
+
+	diff -u "${ns}" "${nst}"
+
+	einfo ""
+	einfo "Use the new file?"
+	einfo "Please note that if your ${ROOT}etc/ldap.conf is not"
+	einfo "setup correctly this might cause slowdowns in the usage"
+	einfo "of the configured databases."
+	einfo "[yes/edit/no]"
+	read answer
+
+	case "${answer}" in
+		yes ) cp -v ${nst} ${ns};;
+		edit ) ${EDITOR} ${nst} && cp -v ${nst} ${ns};;
+		* ) einfo "${ns} not modified";;
+	esac
+}