From c6a94a7f3556c8dc998630aa65b4e812c7898ad1 Mon Sep 17 00:00:00 2001
From: Sean Hall <r.sean.hall@gmail.com>
Date: Sat, 17 Oct 2020 19:36:11 -0500
Subject: Update verutil precedence rules to check for invalid after release
 labels.

---
 src/dutil/verutil.cpp | 57 +++++++++++++++++++++++++++------------------------
 1 file changed, 30 insertions(+), 27 deletions(-)

(limited to 'src/dutil/verutil.cpp')

diff --git a/src/dutil/verutil.cpp b/src/dutil/verutil.cpp
index f362f413..835dde81 100644
--- a/src/dutil/verutil.cpp
+++ b/src/dutil/verutil.cpp
@@ -85,22 +85,6 @@ DAPI_(HRESULT) VerCompareParsedVersions(
         ExitFunction();
     }
 
-    if (pVersion1->fInvalid)
-    {
-        if (!pVersion2->fInvalid)
-        {
-            ExitFunction1(nResult = -1);
-        }
-        else
-        {
-            fCompareMetadata = TRUE;
-        }
-    }
-    else if (pVersion2->fInvalid)
-    {
-        ExitFunction1(nResult = 1);
-    }
-
     if (pVersion1->cReleaseLabels)
     {
         if (pVersion2->cReleaseLabels)
@@ -132,6 +116,22 @@ DAPI_(HRESULT) VerCompareParsedVersions(
         }
     }
 
+    if (pVersion1->fInvalid)
+    {
+        if (!pVersion2->fInvalid)
+        {
+            ExitFunction1(nResult = -1);
+        }
+        else
+        {
+            fCompareMetadata = TRUE;
+        }
+    }
+    else if (pVersion2->fInvalid)
+    {
+        ExitFunction1(nResult = 1);
+    }
+
     if (fCompareMetadata)
     {
         hr = CompareVersionSubstring(pVersion1->sczVersion + pVersion1->cchMetadataOffset, -1, pVersion2->sczVersion + pVersion2->cchMetadataOffset, -1, &nResult);
@@ -191,20 +191,23 @@ DAPI_(HRESULT) VerCopyVersion(
     pCopy->dwPatch = pSource->dwPatch;
     pCopy->dwRevision = pSource->dwRevision;
 
-    hr = MemEnsureArraySize(reinterpret_cast<LPVOID*>(&pCopy->rgReleaseLabels), 0, sizeof(VERUTIL_VERSION_RELEASE_LABEL), pSource->cReleaseLabels);
-    VerExitOnFailure(hr, "Failed to allocate memory for Verutil version release labels copies.");
+    if (pSource->cReleaseLabels)
+    {
+        hr = MemEnsureArraySize(reinterpret_cast<LPVOID*>(&pCopy->rgReleaseLabels), 0, sizeof(VERUTIL_VERSION_RELEASE_LABEL), pSource->cReleaseLabels);
+        VerExitOnFailure(hr, "Failed to allocate memory for Verutil version release labels copies.");
 
-    pCopy->cReleaseLabels = pSource->cReleaseLabels;
+        pCopy->cReleaseLabels = pSource->cReleaseLabels;
 
-    for (DWORD i = 0; i < pCopy->cReleaseLabels; ++i)
-    {
-        VERUTIL_VERSION_RELEASE_LABEL* pSourceLabel = pSource->rgReleaseLabels + i;
-        VERUTIL_VERSION_RELEASE_LABEL* pCopyLabel = pCopy->rgReleaseLabels + i;
+        for (DWORD i = 0; i < pCopy->cReleaseLabels; ++i)
+        {
+            VERUTIL_VERSION_RELEASE_LABEL* pSourceLabel = pSource->rgReleaseLabels + i;
+            VERUTIL_VERSION_RELEASE_LABEL* pCopyLabel = pCopy->rgReleaseLabels + i;
 
-        pCopyLabel->cchLabelOffset = pSourceLabel->cchLabelOffset;
-        pCopyLabel->cchLabel = pSourceLabel->cchLabel;
-        pCopyLabel->fNumeric = pSourceLabel->fNumeric;
-        pCopyLabel->dwValue = pSourceLabel->dwValue;
+            pCopyLabel->cchLabelOffset = pSourceLabel->cchLabelOffset;
+            pCopyLabel->cchLabel = pSourceLabel->cchLabel;
+            pCopyLabel->fNumeric = pSourceLabel->fNumeric;
+            pCopyLabel->dwValue = pSourceLabel->dwValue;
+        }
     }
 
     pCopy->cchMetadataOffset = pSource->cchMetadataOffset;
-- 
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