From 980c0e8f0f4043752a535aa6b5fc181e9f7daca3 Mon Sep 17 00:00:00 2001
From: Yaroslav Tykhiy <ytykhiy@gmail.com>
Date: Mon, 28 Jan 2002 17:30:12 +0000
Subject: Disallow adding duplicate roots, toors, or other users w/uid 0.
 Previously, a truth check instead if defined() check erroneously allowed
 that.

PR:		bin/8745
---
 adduser/adduser.perl | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'adduser')

diff --git a/adduser/adduser.perl b/adduser/adduser.perl
index 2728eff..2aa9c31 100644
--- a/adduser/adduser.perl
+++ b/adduser/adduser.perl
@@ -345,7 +345,7 @@ sub new_users_name_valid {
 	    warn "Username doesn't match the regexp /$usernameregexp/\a\n";
 	}
 	return 0;
-    } elsif ($username{$name}) {
+    } elsif (defined($username{$name})) {
 	warn "Username ``$name'' already exists!\a\n"; return 0;
     }
     return 1;
-- 
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