--- /dev/null
+if (module !== require.main) {
+ throw new Error("This file should not be loaded with require()")
+}
+
+if (!process.getuid || !process.getgid) {
+ throw new Error("this file should not be called without uid/gid support")
+}
+
+var argv = process.argv.slice(2)
+ , user = argv[0] || process.getuid()
+ , group = argv[1] || process.getgid()
+
+if (!isNaN(user)) user = +user
+if (!isNaN(group)) group = +group
+
+console.error([user, group])
+
+try {
+ process.setgid(group)
+ process.setuid(user)
+ console.log(JSON.stringify({uid:+process.getuid(), gid:+process.getgid()}))
+} catch (ex) {
+ console.log(JSON.stringify({error:ex.message,errno:ex.errno}))
+}