From b62e51e5405becf679e05153666088e5d7b5bb91 Mon Sep 17 00:00:00 2001
From: Tim Wiederhake <twiederh@redhat.com>
Date: Mon, 1 Feb 2021 13:42:05 +0100
Subject: [PATCH] tests: Prevent malloc with size 0

Found by clang-tidy's "clang-analyzer-optin.portability.UnixAPI" check.

Signed-off-by: Tim Wiederhake <twiederh@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
---
 tests/commandhelper.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/tests/commandhelper.c b/tests/commandhelper.c
index bf6a5baa40..b3c65ab3cc 100644
--- a/tests/commandhelper.c
+++ b/tests/commandhelper.c
@@ -156,6 +156,9 @@ static int printEnvironment(FILE *log)
     for (length = 0; environ[length]; length++) {
     }
 
+    if (length == 0)
+        return 0;
+
     if (!(newenv = malloc(sizeof(*newenv) * length)))
         return -1;
 
-- 
2.47.2