Fix invalid reads by memcmp.
Str may be smaller than Start->Name here. Use strncmp to avoid scanning past the
end. Found by valgrind.
llvm-svn: 165157
diff --git a/clang/lib/Driver/OptTable.cpp b/clang/lib/Driver/OptTable.cpp
index 680ea99..257f353 100644
--- a/clang/lib/Driver/OptTable.cpp
+++ b/clang/lib/Driver/OptTable.cpp
@@ -162,7 +162,7 @@
for (; Start != End; ++Start) {
// Scan for first option which is a proper prefix.
for (; Start != End; ++Start)
- if (memcmp(Str, Start->Name, strlen(Start->Name)) == 0)
+ if (strncmp(Str, Start->Name, strlen(Start->Name)) == 0)
break;
if (Start == End)
break;