Report the error, rather than just failing badly.

1 files changed, 7 insertions, 6 deletions

diff --git a/bin/npm-get-uid-gid.js b/bin/npm-get-uid-gid.js
index 99b0d702a..390e0f2fc 100644
--- a/bin/npm-get-uid-gid.js
+++ b/bin/npm-get-uid-gid.js
@@ -5,11 +5,12 @@ var argv = process.argv.slice(2)
 if (!isNaN(user)) user = +user
 if (!isNaN(group)) group = +group
 
-
 console.error([user, group])
 
-
-process.setgid(group)
-process.setuid(user)
-
-console.log(JSON.stringify({uid:+process.getuid(), gid:+process.getgid()}))
+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}))
+}