commit e114669cafeaafa73e15e251682c25fd13bc15e4
author Daniel Marjamaki <daniel.marjamaki@evidente.se> Wed Jan 27 07:33:50 2016 +0000
committer Daniel Marjamaki <daniel.marjamaki@evidente.se> Wed Jan 27 07:33:50 2016 +0000
tree 43712ee2fb67179605387927800b8e82986338f8
parent 1473d5b546e24904e089a5c16381cbf27a7459fc

Fix array index out of bounds

Differential Revision: http://reviews.llvm.org/D16582

llvm-svn: 258911

clang/lib/Driver/MSVCToolChain.cpp

diff --git a/clang/lib/Driver/MSVCToolChain.cpp b/clang/lib/Driver/MSVCToolChain.cpp
index 1d2d20b..0834be7 100644
--- a/clang/lib/Driver/MSVCToolChain.cpp
+++ b/clang/lib/Driver/MSVCToolChain.cpp
@@ -141,8 +141,8 @@
       nextKey++;
     size_t partialKeyLength = keyEnd - keyPath;
     char partialKey[256];
-    if (partialKeyLength > sizeof(partialKey))
-      partialKeyLength = sizeof(partialKey);
+    if (partialKeyLength >= sizeof(partialKey))
+      partialKeyLength = sizeof(partialKey) - 1;
     strncpy(partialKey, keyPath, partialKeyLength);
     partialKey[partialKeyLength] = '\0';
     HKEY hTopKey = NULL;