# HG changeset patch
# User Timo Sirainen <timo.sirainen@dovecot.fi>
# Date 1473419231 -10800
# Node ID bf8fbf7fcc6a676c2aa5cc5f794d81abdfb27ec7
# Parent  6e339cbdeaf5ed8894fb1d8f28afc83d70d996e9
lib-storage: Fixed accessing user as root when user has no uid.

This shouldn't normally be done, but might as well fix it. Fixes:

Fatal: mail-storage-service: seteuid(4294967295) failed: Invalid argument

diff -r 6e339cbdeaf5 -r bf8fbf7fcc6a src/lib-storage/mail-storage-service.c
--- a/src/lib-storage/mail-storage-service.c	Fri Sep 09 00:59:53 2016 +0300
+++ b/src/lib-storage/mail-storage-service.c	Fri Sep 09 14:07:11 2016 +0300
@@ -610,7 +610,7 @@
 	}
 
 	if (keep_setuid_root) {
-		if (current_euid != rset.uid) {
+		if (current_euid != rset.uid && rset.uid != (uid_t)-1) {
 			if (current_euid != 0) {
 				/* we're changing the UID,
 				   switch back to root first */