Move libFuzzer to compiler_rt.
Resulting library binaries will be named libclang_rt.fuzzer*, and will
be placed in Clang toolchain, allowing redistribution.
Differential Revision: https://reviews.llvm.org/D36908
llvm-svn: 311407
diff --git a/compiler-rt/test/fuzzer/StrncmpOOBTest.cpp b/compiler-rt/test/fuzzer/StrncmpOOBTest.cpp
new file mode 100644
index 0000000..4ed71d9
--- /dev/null
+++ b/compiler-rt/test/fuzzer/StrncmpOOBTest.cpp
@@ -0,0 +1,21 @@
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+
+// Test that libFuzzer itself does not read out of bounds.
+#include <assert.h>
+#include <cstddef>
+#include <cstdint>
+#include <cstdlib>
+#include <cstring>
+#include <iostream>
+
+static volatile int Sink;
+
+extern "C" int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {
+ if (Size < 5) return 0;
+ const char *Ch = reinterpret_cast<const char *>(Data);
+ if (Ch[Size - 3] == 'a')
+ Sink = strncmp(Ch + Size - 3, "abcdefg", 6);
+ return 0;
+}
+