Break crashpad_handler into lib and exe for Windows

handler/main.cc

-// Copyright 2014 The Crashpad Authors. All rights reserved.
+// Copyright 2015 The Crashpad Authors. 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.
 
-#include <getopt.h>
-#include <stdlib.h>
+#include "handler/main.h"
 
-#include <map>
-#include <string>
-
-#include "base/files/file_path.h"
-#include "base/files/scoped_file.h"
-#include "base/logging.h"
-#include "base/memory/scoped_ptr.h"
-#include "base/strings/utf_string_conversions.h"
 #include "build/build_config.h"
-#include "client/crash_report_database.h"
-#include "client/crashpad_client.h"
 #include "tools/tool_support.h"
-#include "handler/crash_report_upload_thread.h"
-#include "util/file/file_io.h"
-#include "util/stdlib/map_insert.h"
-#include "util/stdlib/string_number_conversion.h"
-#include "util/string/split_string.h"
-#include "util/synchronization/semaphore.h"
-
-#if defined(OS_MACOSX)
-#include <libgen.h>
-#include "base/mac/scoped_mach_port.h"
-#include "handler/mac/crash_report_exception_handler.h"
-#include "handler/mac/exception_handler_server.h"
-#include "util/mach/child_port_handshake.h"
-#include "util/mach/mach_extensions.h"
-#include "util/posix/close_stdio.h"
-#elif defined(OS_WIN)
-#include <windows.h>
-#include "handler/win/crash_report_exception_handler.h"
-#include "util/win/exception_handler_server.h"
-#include "util/win/handle.h"
-#endif  // OS_MACOSX
-
-namespace crashpad {
-namespace {
-
-void Usage(const base::FilePath& me) {
-  fprintf(stderr,
-"Usage: %" PRFilePath " [OPTION]...\n"
-"Crashpad's exception handler server.\n"
-"\n"
-"      --annotation=KEY=VALUE  set a process annotation in each crash report\n"
-"      --database=PATH         store the crash report database at PATH\n"
-#if defined(OS_MACOSX)
-"      --handshake-fd=FD       establish communication with the client over FD\n"
-"      --mach-service=SERVICE  register SERVICE with the bootstrap server\n"
-"      --reset-own-crash-exception-port-to-system-default\n"
-"                              reset the server's exception handler to default\n"
-#elif defined(OS_WIN)
-"      --handshake-handle=HANDLE\n"
-"                              create a new pipe and send its name via HANDLE\n"
-"      --pipe-name=PIPE        communicate with the client over PIPE\n"
-#endif  // OS_MACOSX
-"      --url=URL               send crash reports to this Breakpad server URL,\n"
-"                              only if uploads are enabled for the database\n"
-"      --help                  display this help and exit\n"
-"      --version               output version information and exit\n",
-          me.value().c_str());
-  ToolSupport::UsageTail(me);
-}
-
-int HandlerMain(int argc, char* argv[]) {
-  const base::FilePath argv0(
-      ToolSupport::CommandLineArgumentToFilePathStringType(argv[0]));
-  const base::FilePath me(argv0.BaseName());
-
-  enum OptionFlags {
-    // Long options without short equivalents.
-    kOptionLastChar = 255,
-    kOptionAnnotation,
-    kOptionDatabase,
-#if defined(OS_MACOSX)
-    kOptionHandshakeFD,
-    kOptionMachService,
-    kOptionResetOwnCrashExceptionPortToSystemDefault,
-#elif defined(OS_WIN)
-    kOptionHandshakeHandle,
-    kOptionPipeName,
-#endif  // OS_MACOSX
-    kOptionURL,
-
-    // Standard options.
-    kOptionHelp = -2,
-    kOptionVersion = -3,
-  };
-
-  struct {
-    std::map<std::string, std::string> annotations;
-    std::string url;
-    const char* database;
-#if defined(OS_MACOSX)
-    int handshake_fd;
-    std::string mach_service;
-    bool reset_own_crash_exception_port_to_system_default;
-#elif defined(OS_WIN)
-    HANDLE handshake_handle;
-    std::string pipe_name;
-#endif  // OS_MACOSX
-  } options = {};
-#if defined(OS_MACOSX)
-  options.handshake_fd = -1;
-#elif defined(OS_WIN)
-  options.handshake_handle = INVALID_HANDLE_VALUE;
-#endif
-
-  const option long_options[] = {
-      {"annotation", required_argument, nullptr, kOptionAnnotation},
-      {"database", required_argument, nullptr, kOptionDatabase},
-#if defined(OS_MACOSX)
-      {"handshake-fd", required_argument, nullptr, kOptionHandshakeFD},
-      {"mach-service", required_argument, nullptr, kOptionMachService},
-      {"reset-own-crash-exception-port-to-system-default",
-       no_argument,
-       nullptr,
-       kOptionResetOwnCrashExceptionPortToSystemDefault},
-#elif defined(OS_WIN)
-      {"handshake-handle", required_argument, nullptr, kOptionHandshakeHandle},
-      {"pipe-name", required_argument, nullptr, kOptionPipeName},
-#endif  // OS_MACOSX
-      {"url", required_argument, nullptr, kOptionURL},
-      {"help", no_argument, nullptr, kOptionHelp},
-      {"version", no_argument, nullptr, kOptionVersion},
-      {nullptr, 0, nullptr, 0},
-  };
-
-  int opt;
-  while ((opt = getopt_long(argc, argv, "", long_options, nullptr)) != -1) {
-    switch (opt) {
-      case kOptionAnnotation: {
-        std::string key;
-        std::string value;
-        if (!SplitString(optarg, '=', &key, &value)) {
-          ToolSupport::UsageHint(me, "--annotation requires KEY=VALUE");
-          return EXIT_FAILURE;
-        }
-        std::string old_value;
-        if (!MapInsertOrReplace(&options.annotations, key, value, &old_value)) {
-          LOG(WARNING) << "duplicate key " << key << ", discarding value "
-                       << old_value;
-        }
-        break;
-      }
-      case kOptionDatabase: {
-        options.database = optarg;
-        break;
-      }
-#if defined(OS_MACOSX)
-      case kOptionHandshakeFD: {
-        if (!StringToNumber(optarg, &options.handshake_fd) ||
-            options.handshake_fd < 0) {
-          ToolSupport::UsageHint(me,
-                                 "--handshake-fd requires a file descriptor");
-          return EXIT_FAILURE;
-        }
-        break;
-      }
-      case kOptionMachService: {
-        options.mach_service = optarg;
-        break;
-      }
-      case kOptionResetOwnCrashExceptionPortToSystemDefault: {
-        options.reset_own_crash_exception_port_to_system_default = true;
-        break;
-      }
-#elif defined(OS_WIN)
-      case kOptionHandshakeHandle: {
-        // Use unsigned int, because the handle was presented by the client in
-        // 0x%x format.
-        unsigned int handle_uint;
-        if (!StringToNumber(optarg, &handle_uint) ||
-            (options.handshake_handle = IntToHandle(handle_uint)) ==
-                INVALID_HANDLE_VALUE) {
-          ToolSupport::UsageHint(me, "--handshake-handle requires a HANDLE");
-          return EXIT_FAILURE;
-        }
-        break;
-      }
-      case kOptionPipeName: {
-        options.pipe_name = optarg;
-        break;
-      }
-#endif  // OS_MACOSX
-      case kOptionURL: {
-        options.url = optarg;
-        break;
-      }
-      case kOptionHelp: {
-        Usage(me);
-        return EXIT_SUCCESS;
-      }
-      case kOptionVersion: {
-        ToolSupport::Version(me);
-        return EXIT_SUCCESS;
-      }
-      default: {
-        ToolSupport::UsageHint(me, nullptr);
-        return EXIT_FAILURE;
-      }
-    }
-  }
-  argc -= optind;
-  argv += optind;
-
-#if defined(OS_MACOSX)
-  if (options.handshake_fd < 0 && options.mach_service.empty()) {
-    ToolSupport::UsageHint(me, "--handshake-fd or --mach-service is required");
-    return EXIT_FAILURE;
-  }
-  if (options.handshake_fd >= 0 && !options.mach_service.empty()) {
-    ToolSupport::UsageHint(
-        me, "--handshake-fd and --mach-service are incompatible");
-    return EXIT_FAILURE;
-  }
-#elif defined(OS_WIN)
-  if (options.handshake_handle == INVALID_HANDLE_VALUE &&
-      options.pipe_name.empty()) {
-    ToolSupport::UsageHint(me, "--handshake-handle or --pipe-name is required");
-    return EXIT_FAILURE;
-  }
-  if (options.handshake_handle != INVALID_HANDLE_VALUE &&
-      !options.pipe_name.empty()) {
-    ToolSupport::UsageHint(
-        me, "--handshake-handle and --pipe-name are incompatible");
-    return EXIT_FAILURE;
-  }
-#endif  // OS_MACOSX
-
-  if (!options.database) {
-    ToolSupport::UsageHint(me, "--database is required");
-    return EXIT_FAILURE;
-  }
-
-  if (argc) {
-    ToolSupport::UsageHint(me, nullptr);
-    return EXIT_FAILURE;
-  }
-
-#if defined(OS_MACOSX)
-  if (options.mach_service.empty()) {
-    // Don’t do this when being run by launchd. See launchd.plist(5).
-    CloseStdinAndStdout();
-  }
-
-  if (options.reset_own_crash_exception_port_to_system_default) {
-    CrashpadClient::UseSystemDefaultHandler();
-  }
-
-  base::mac::ScopedMachReceiveRight receive_right;
-
-  if (options.handshake_fd >= 0) {
-    receive_right.reset(
-        ChildPortHandshake::RunServerForFD(
-            base::ScopedFD(options.handshake_fd),
-            ChildPortHandshake::PortRightType::kReceiveRight));
-  } else if (!options.mach_service.empty()) {
-    receive_right = BootstrapCheckIn(options.mach_service);
-  }
-
-  if (!receive_right.is_valid()) {
-    return EXIT_FAILURE;
-  }
-
-  ExceptionHandlerServer exception_handler_server(
-      receive_right.Pass(), !options.mach_service.empty());
-#elif defined(OS_WIN)
-  ExceptionHandlerServer exception_handler_server(!options.pipe_name.empty());
-
-  std::string pipe_name;
-  if (!options.pipe_name.empty()) {
-    exception_handler_server.SetPipeName(base::UTF8ToUTF16(options.pipe_name));
-  } else if (options.handshake_handle != INVALID_HANDLE_VALUE) {
-    std::wstring pipe_name = exception_handler_server.CreatePipe();
-
-    uint32_t pipe_name_length = static_cast<uint32_t>(pipe_name.size());
-    if (!LoggingWriteFile(options.handshake_handle,
-                          &pipe_name_length,
-                          sizeof(pipe_name_length))) {
-      return EXIT_FAILURE;
-    }
-    if (!LoggingWriteFile(options.handshake_handle,
-                          pipe_name.c_str(),
-                          pipe_name.size() * sizeof(pipe_name[0]))) {
-      return EXIT_FAILURE;
-    }
-  }
-#endif  // OS_MACOSX
-
-  scoped_ptr<CrashReportDatabase> database(CrashReportDatabase::Initialize(
-      base::FilePath(ToolSupport::CommandLineArgumentToFilePathStringType(
-          options.database))));
-  if (!database) {
-    return EXIT_FAILURE;
-  }
-
-  CrashReportUploadThread upload_thread(database.get(), options.url);
-  upload_thread.Start();
-
-  CrashReportExceptionHandler exception_handler(
-      database.get(), &upload_thread, &options.annotations);
-
-  exception_handler_server.Run(&exception_handler);
-
-  upload_thread.Stop();
-
-  return EXIT_SUCCESS;
-}
-
-}  // namespace
-}  // namespace crashpad
 
 #if defined(OS_MACOSX)
 int main(int argc, char* argv[]) {
   return crashpad::HandlerMain(argc, argv);
 }
 #elif defined(OS_WIN)
 int wmain(int argc, wchar_t* argv[]) {
   return crashpad::ToolSupport::Wmain(argc, argv, crashpad::HandlerMain);
 }
 #endif  // OS_MACOSX