From b04e038869af63b570b00c8bfd88c02039a91005 Mon Sep 17 00:00:00 2001
From: iadgovuser58 <124906646+iadgovuser58@users.noreply.github.com>
Date: Fri, 10 May 2024 20:40:40 -0400
Subject: [PATCH] added function to check emptiness of file handle

---
 .../java/hirs/utils/tpm/eventlog/uefi/UefiGuid.java   | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/HIRS_Utils/src/main/java/hirs/utils/tpm/eventlog/uefi/UefiGuid.java b/HIRS_Utils/src/main/java/hirs/utils/tpm/eventlog/uefi/UefiGuid.java
index 5eacf3dd..d4d97370 100644
--- a/HIRS_Utils/src/main/java/hirs/utils/tpm/eventlog/uefi/UefiGuid.java
+++ b/HIRS_Utils/src/main/java/hirs/utils/tpm/eventlog/uefi/UefiGuid.java
@@ -101,6 +101,17 @@ public class UefiGuid {
         return UefiConstants.SIZE_16;
     }
 
+    /**
+     *
+     * Checks whether the handle to the file needed to look up the UUID is valid. If empty,
+     * this likely means the file was not accessible to due to existence or permissions.
+     *
+     * @return true if the reference to the file handle needed to look up the UUID is empty
+     */
+    public boolean isUefiVendorRefEmpty() {
+        return uefiVendorRef.isEmpty();
+    }
+
     /**
      * Returns a String that represents a specification name referenced by the
      * EFI_CONFIGURATION_TABLE VendorGUID field.  For structure of