From 9217c359db1d1b6d031a0e2ca9a885634fed00da Mon Sep 17 00:00:00 2001
From: usertam <code@usertam.dev>
Date: Thu, 29 May 2025 19:19:06 +0800
Subject: [PATCH] mkgnutar.pl: avoid uninitialized username variable

This can happen when the running uid is dynamically allocated
without a proper user entry or name.
---
 tests/m_rootgnutar/mkgnutar.pl | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tests/m_rootgnutar/mkgnutar.pl b/tests/m_rootgnutar/mkgnutar.pl
index 516124cd..2513b9b7 100644
--- a/tests/m_rootgnutar/mkgnutar.pl
+++ b/tests/m_rootgnutar/mkgnutar.pl
@@ -59,7 +59,7 @@ foreach my $fname (@entries) {
     my $content = "";
     my $type;
     my $linkname = "";
-    my $username = $ENV{LOGNAME} || $ENV{USER} || getpwuid($<);
+    my $username = $ENV{LOGNAME} || $ENV{USER} || getpwuid($<) || "";
     if (S_ISLNK($mode)) {
         $type     = 2;
         $linkname = readlink $fname;
-- 
2.47.3