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diff --git a/src/main/cpp/blaze_util.h b/src/main/cpp/blaze_util.h
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+// Copyright 2014 Google Inc. All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//    http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+// blaze_util.h: Miscellaneous utility functions used by the blaze.cc
+//               Blaze client.
+//
+
+#ifndef DEVTOOLS_BLAZE_MAIN_BLAZE_UTIL_H__
+#define DEVTOOLS_BLAZE_MAIN_BLAZE_UTIL_H__
+
+#include <pwd.h>
+#include <stdarg.h>
+#include <sys/file.h>
+#include <sys/ioctl.h>
+#include <sys/socket.h>
+#include <sys/types.h>
+#include <string>
+#include <vector>
+
+#include "blaze_exit_code.h"
+#include "util/numbers.h"
+#include "util/port.h"
+
+namespace blaze {
+
+using std::string;
+
+// Prints the specified error message and exits nonzero.
+void die(const int exit_status, const char *format, ...) ATTRIBUTE_NORETURN
+    PRINTF_ATTRIBUTE(2, 3);
+// Prints "Error: <formatted-message>: <strerror(errno)>\n",  and exits nonzero.
+void pdie(const int exit_status, const char *format, ...) ATTRIBUTE_NORETURN
+    PRINTF_ATTRIBUTE(2, 3);
+
+string GetUserName();
+
+// Return the path to the JVM launcher.
+string GetJvm();
+
+// Returns the given path in absolute form.  Does not change paths that are
+// already absolute.
+//
+// If called from working directory "/bar":
+//   MakeAbsolute("foo") --> "/bar/foo"
+//   MakeAbsolute("/foo") ---> "/foo"
+string MakeAbsolute(string path);
+
+// mkdir -p path. All newly created directories use the given mode.
+// Returns -1 on failure, sets errno.
+int MakeDirectories(string path, int mode);
+
+// Replaces 'content' with contents of file 'filename'.
+// Returns false on error.
+bool ReadFile(const string &filename, string *content);
+
+// Writes 'content' into file 'filename', and makes it executable.
+// Returns false on failure, sets errno.
+bool WriteFile(const string &content, const string &filename);
+
+// Returns true iff the current terminal can support color and cursor movement.
+bool IsStandardTerminal();
+
+// Returns the number of columns of the terminal to which stdout is
+// connected, or 80 if there is no such terminal.
+int GetTerminalColumns();
+
+// blaze's JVM arch is set at build time (--java_cpu), since the blaze java
+// process includes native code.
+bool Is64BitBlazeJavabase();
+
+// Adds JVM arguments particular to running blaze with JVM v3 or higher.
+void AddJVMSpecificArguments(const string &host_javabase,
+                             std::vector<string> *result);
+
+void ExecuteProgram(string exe, const std::vector<string>& args_vector);
+
+void ReExecute(const string &executable, int argc, const char *argv[]);
+
+// If 'arg' matches 'key=value', returns address of 'value'.
+// If it matches 'key' alone, returns address of next_arg.
+// Returns NULL otherwise.
+const char* GetUnaryOption(const char *arg, const char *next_arg,
+                                  const char *key);
+
+// Returns true iff 'arg' equals 'key'.
+// Dies with a syntax error if arg starts with 'key='.
+// Returns NULL otherwise.
+bool GetNullaryOption(const char *arg, const char *key);
+
+blaze_exit_code::ExitCode CheckValidPort(
+    const string &str, const string &option, string *error);
+
+bool VerboseLogging();
+
+// Read the JVM version from a file descriptor. The fd should point
+// to the output of a "java -version" execution and is supposed to contains
+// a string of the form 'version "version-number"' in the first 255 bytes.
+// If the string is found, version-number is returned, else the empty string
+// is returned.
+string ReadJvmVersion(int fd);
+
+// Get the version string from the given java executable. The java executable
+// is supposed to output a string in the form '.*version ".*".*'. This method
+// will return the part in between the two quote or the empty string on failure
+// to match the good string.
+string GetJvmVersion(string java_exe);
+
+// Returns true iff jvm_version is at least the version specified by
+// version_spec.
+// jvm_version is supposed to be a string specifying a java runtime version
+// as specified by the JSR-56 appendix A. version_spec is supposed to be a
+// version is the format [0-9]+(.[1-9]+)*.
+bool CheckJavaVersionIsAtLeast(string jvm_version, string version_spec);
+
+}  // namespace blaze
+#endif  // DEVTOOLS_BLAZE_MAIN_BLAZE_UTIL_H__