Fix crash in UnameHelper()

fixes #11714

diff --git a/lib/base/utility.cpp b/lib/base/utility.cpp
index 0b09516b759258e5bc946cd4f3452d4e6539680c..10491d9c458c20dedd0613b90ba36d5c8c99df58 100644 (file)
--- a/lib/base/utility.cpp
+++ b/lib/base/utility.cpp
@@ -1435,6 +1435,9 @@ static String UnameHelper(char type)
 
        FILE *fp = popen(cmd, "r");
 
+       if (!fp)
+               return "Unknown";
+
        char line[1024];
        std::ostringstream msgbuf;
 
@@ -1892,4 +1895,4 @@ String Utility::GetIcingaDataPath(void)
        return String(path) + "\\icinga2";
 }
 
-#endif /* _WIN32 */
\ No newline at end of file
+#endif /* _WIN32 */