1 files changed, 90 insertions, 0 deletions
diff --git a/tools/fuzzing/interface/FuzzingInterfaceStream.h b/tools/fuzzing/interface/FuzzingInterfaceStream.h
new file mode 100644
index 0000000000..eb5637c844
--- /dev/null
+++ b/tools/fuzzing/interface/FuzzingInterfaceStream.h
@@ -0,0 +1,90 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* 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/. */
+
+/*
+ * Interface definitions for the unified fuzzing interface with streaming
+ * support
+ */
+
+#ifndef FuzzingInterfaceStream_h__
+#define FuzzingInterfaceStream_h__
+
+#ifdef JS_STANDALONE
+#  error "FuzzingInterfaceStream.h cannot be used in JS standalone builds."
+#endif
+
+#include "gtest/gtest.h"
+#include "nsComponentManagerUtils.h"
+#include "nsCOMPtr.h"
+#include "nsIInputStream.h"
+
+#include "nsDirectoryServiceDefs.h"
+#include "nsStreamUtils.h"
+#include "nsStringStream.h"
+
+#include <fstream>
+
+#include "FuzzingInterface.h"
+
+namespace mozilla {
+
+typedef int (*FuzzingTestFuncStream)(nsCOMPtr<nsIInputStream>);
+
+#ifdef __AFL_COMPILER
+void afl_interface_stream(const char* testFile, FuzzingTestFuncStream testFunc);
+
+#  define MOZ_AFL_INTERFACE_COMMON(initFunc)                              \
+    if (initFunc) initFunc(NULL, NULL);                                   \
+    char* testFilePtr = getenv("MOZ_FUZZ_TESTFILE");                      \
+    if (!testFilePtr) {                                                   \
+      fprintf(stderr,                                                     \
+              "Must specify testfile in MOZ_FUZZ_TESTFILE environment "   \
+              "variable.\n");                                             \
+      return;                                                             \
+    }                                                                     \
+    /* Make a copy of testFilePtr so the testing function can safely call \
+     * getenv                                                             \
+     */                                                                   \
+    std::string testFile(testFilePtr);
+
+#  define MOZ_AFL_INTERFACE_STREAM(initFunc, testFunc, moduleName) \
+    TEST(AFL, moduleName)                                          \
+    {                                                              \
+      MOZ_AFL_INTERFACE_COMMON(initFunc);                          \
+      ::mozilla::afl_interface_stream(testFile.c_str(), testFunc); \
+    }
+#else
+#  define MOZ_AFL_INTERFACE_STREAM(initFunc, testFunc, moduleName) /* Nothing \
+                                                                    */
+#endif
+
+#ifdef LIBFUZZER
+#  define MOZ_LIBFUZZER_INTERFACE_STREAM(initFunc, testFunc, moduleName)       \
+    static int LibFuzzerTest##moduleName(const uint8_t* data, size_t size) {   \
+      if (size > INT32_MAX) return 0;                                          \
+      nsCOMPtr<nsIInputStream> stream;                                         \
+      nsresult rv = NS_NewByteInputStream(getter_AddRefs(stream),              \
+                                          Span((const char*)data, size),       \
+                                          NS_ASSIGNMENT_DEPEND);               \
+      MOZ_RELEASE_ASSERT(NS_SUCCEEDED(rv));                                    \
+      testFunc(stream.forget());                                               \
+      return 0;                                                                \
+    }                                                                          \
+    static void __attribute__((constructor)) LibFuzzerRegister##moduleName() { \
+      ::mozilla::FuzzerRegistry::getInstance().registerModule(                 \
+          #moduleName, initFunc, LibFuzzerTest##moduleName);                   \
+    }
+#else
+#  define MOZ_LIBFUZZER_INTERFACE_STREAM(initFunc, testFunc, \
+                                         moduleName) /* Nothing */
+#endif
+
+#define MOZ_FUZZING_INTERFACE_STREAM(initFunc, testFunc, moduleName) \
+  MOZ_LIBFUZZER_INTERFACE_STREAM(initFunc, testFunc, moduleName);    \
+  MOZ_AFL_INTERFACE_STREAM(initFunc, testFunc, moduleName);
+
+}  // namespace mozilla
+
+#endif  // FuzzingInterfaceStream_h__