1 files changed, 100 insertions, 0 deletions
diff --git a/ipc/glue/Faulty.h b/ipc/glue/Faulty.h
new file mode 100644
index 000000000..8afe86b06
--- /dev/null
+++ b/ipc/glue/Faulty.h
@@ -0,0 +1,100 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef mozilla_ipc_Faulty_h
+#define mozilla_ipc_Faulty_h
+
+#include <set>
+#include <string>
+#include "nsDebug.h"
+#include "base/string16.h"
+#include "base/singleton.h"
+
+#define FAULTY_DEFAULT_PROBABILITY 1000
+#define FAULTY_LOG(fmt, args...) \
+  if (mozilla::ipc::Faulty::IsLoggingEnabled()) { \
+    printf_stderr("[Faulty] " fmt "\n", ## args); \
+  }
+
+namespace IPC {
+  // Needed for blacklisting messages.
+  class Message;
+}
+
+namespace mozilla {
+namespace ipc {
+
+class Faulty
+{
+  public:
+    // Used as a default argument for the Fuzz|datatype| methods.
+    static const unsigned int sDefaultProbability;
+
+    static unsigned int DefaultProbability(void);
+    static bool Logging(void);
+    static bool IsLoggingEnabled(void) { return sIsLoggingEnabled; }
+
+    void FuzzBool(bool* aValue, unsigned int aProbability=sDefaultProbability);
+    void FuzzChar(char* aValue, unsigned int aProbability=sDefaultProbability);
+    void FuzzUChar(unsigned char* aValue, unsigned int aProbability=sDefaultProbability);
+    void FuzzInt16(int16_t* aValue, unsigned int aProbability=sDefaultProbability);
+    void FuzzUInt16(uint16_t* aValue, unsigned int aProbability=sDefaultProbability);
+    void FuzzInt(int* aValue, unsigned int aProbability=sDefaultProbability);
+    void FuzzUInt32(uint32_t* aValue, unsigned int aProbability=sDefaultProbability);
+    void FuzzLong(long* aValue, unsigned int aProbability=sDefaultProbability);
+    void FuzzULong(unsigned long* aValue, unsigned int aProbability=sDefaultProbability);
+    void FuzzInt64(int64_t* aValue, unsigned int aProbability=sDefaultProbability);
+    void FuzzUInt64(uint64_t* aValue, unsigned int aProbability=sDefaultProbability);
+    void FuzzSize(size_t* aValue, unsigned int aProbability=sDefaultProbability);
+    void FuzzFloat(float* aValue, unsigned int aProbability=sDefaultProbability);
+    void FuzzDouble(double* aValue, unsigned int aProbability=sDefaultProbability);
+    void FuzzString(std::string& aValue, unsigned int aProbability=sDefaultProbability);
+    void FuzzWString(std::wstring& aValue, unsigned int aProbability=sDefaultProbability);
+    void FuzzString16(string16& aValue, unsigned int aProbability=sDefaultProbability);
+    void FuzzData(std::string& aData, int aLength, unsigned int aProbability=sDefaultProbability);
+    void FuzzBytes(void* aData, int aLength, unsigned int aProbability=sDefaultProbability);
+
+    void MaybeCollectAndClosePipe(int aPipe, unsigned int aProbability=sDefaultProbability);
+
+  private:
+    std::set<int> mFds;
+
+    const bool mFuzzPipes;
+    const bool mFuzzPickle;
+    const bool mUseLargeValues;
+    const bool mIsValidProcessType;
+
+    static const bool sIsLoggingEnabled;
+
+    Faulty();
+    friend struct DefaultSingletonTraits<Faulty>;
+    DISALLOW_EVIL_CONSTRUCTORS(Faulty);
+
+    static bool IsValidProcessType(void);
+
+    unsigned int Random(unsigned int aMax);
+    bool GetChance(unsigned int aProbability);
+
+    void MutateBool(bool* aValue);
+    void MutateChar(char* aValue);
+    void MutateUChar(unsigned char* aValue);
+    void MutateInt16(int16_t* aValue);
+    void MutateUInt16(uint16_t* aValue);
+    void MutateInt(int* aValue);
+    void MutateUInt32(uint32_t* aValue);
+    void MutateLong(long* aValue);
+    void MutateULong(unsigned long* aValue);
+    void MutateInt64(int64_t* aValue);
+    void MutateUInt64(uint64_t* aValue);
+    void MutateSize(size_t* aValue);
+    void MutateFloat(float* aValue);
+    void MutateDouble(double* aValue);
+};
+
+} // namespace ipc
+} // namespace mozilla
+
+#endif