Adding a breakpad tester tool. It can be used to crash the specified process so that we can check i…

remoting/tools/breakpad_tester_win.cc

+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include <windows.h>
+#include <stdlib.h>
+
+#include "base/at_exit.h"
+#include "base/command_line.h"
+#include "base/logging.h"
+#include "base/win/scoped_handle.h"
+
+namespace {
+
+// "--help" or "--?" prints the usage message.
+const char kHelpSwitchName[] = "help";
+const char kQuestionSwitchName[] = "?";
+
+const char kUsageMessage[] =
+  "\n"
+  "Usage: %s <pid>\n"
+  "\n"
+  "  pid  - PID of the process to be crashed.\n";
+
+// Exit codes:
+const int kSuccessExitCode = 0;
+const int kUsageExitCode = 1;
+const int kErrorExitCode = 2;
+
+void usage(const char* program_name) {
+  fprintf(stderr, kUsageMessage, program_name);
+}
+
+}  // namespace
+
+int main(int argc, char** argv) {
+  CommandLine::Init(argc, argv);
+
+  base::AtExitManager exit_manager;
+
+  InitLogging(NULL,
+              logging::LOG_ONLY_TO_SYSTEM_DEBUG_LOG,
+              logging::DONT_LOCK_LOG_FILE,
+              logging::APPEND_TO_OLD_LOG_FILE,
+              logging::DISABLE_DCHECK_FOR_NON_OFFICIAL_RELEASE_BUILDS);
+
+  const CommandLine* command_line = CommandLine::ForCurrentProcess();
+  if (command_line->HasSwitch(kHelpSwitchName) ||
+      command_line->HasSwitch(kQuestionSwitchName)) {
+    usage(argv[0]);
+    return kSuccessExitCode;
+  }
+
+  CommandLine::StringVector args = command_line->GetArgs();
+  if (args.size() != 1) {
+    usage(argv[0]);
+    return kUsageExitCode;
+  }
+
+  int pid = _wtoi(args[0].c_str());
+  if (pid == 0) {
+    LOG(ERROR) << "Invalid process PID: " << args[0];
+    return kErrorExitCode;
+  }
+
+  DWORD desired_access = PROCESS_CREATE_THREAD | PROCESS_QUERY_INFORMATION |
+      PROCESS_VM_OPERATION | PROCESS_VM_WRITE | PROCESS_VM_READ;
+  base::win::ScopedHandle process;
+  process.Set(OpenProcess(desired_access, FALSE, pid));
+  if (!process.IsValid()) {
+    LOG_GETLASTERROR(ERROR) << "Failed to open the process " << pid;
+    return kErrorExitCode;
+  }
+
+  DWORD thread_id;
+  base::win::ScopedHandle thread;
+  thread.Set(CreateRemoteThread(process.Get(), NULL, 0, NULL, NULL, 0,
+                                &thread_id));
+  if (!thread.IsValid()) {
+    LOG_GETLASTERROR(ERROR) << "Failed to create a remote thread in " << pid;
+    return kErrorExitCode;
+  }
+
+  return kSuccessExitCode;
+}