From cdf4f3055e964bb585f294cf77cb549ead82783f Mon Sep 17 00:00:00 2001
From: Dimitry Andric <dim@FreeBSD.org>
Date: Mon, 18 Dec 2017 20:11:54 +0000
Subject: Vendor import of compiler-rt trunk r321017:
 https://llvm.org/svn/llvm-project/compiler-rt/trunk@321017

---
 test/fuzzer/StrstrTest.cpp | 28 ++++++++++++++++++++++++++++
 1 file changed, 28 insertions(+)
 create mode 100644 test/fuzzer/StrstrTest.cpp

(limited to 'test/fuzzer/StrstrTest.cpp')

diff --git a/test/fuzzer/StrstrTest.cpp b/test/fuzzer/StrstrTest.cpp
new file mode 100644
index 000000000000..a3ea4e03b3d2
--- /dev/null
+++ b/test/fuzzer/StrstrTest.cpp
@@ -0,0 +1,28 @@
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+
+// Test strstr and strcasestr hooks.
+#include <cstdint>
+#include <cstdio>
+#include <cstdlib>
+#include <string.h>
+#include <string>
+
+// Windows does not have strcasestr and memmem, so we are not testing them.
+#ifdef _WIN32
+#define strcasestr strstr
+#define memmem(a, b, c, d) true
+#endif
+
+extern "C" int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {
+  if (Size < 4) return 0;
+  std::string s(reinterpret_cast<const char*>(Data), Size);
+  if (strstr(s.c_str(), "FUZZ") &&
+      strcasestr(s.c_str(), "aBcD") &&
+      memmem(s.data(), s.size(), "kuku", 4)
+      ) {
+    fprintf(stderr, "BINGO\n");
+    exit(1);
+  }
+  return 0;
+}
-- 
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