Creates the ipclist utility that chrome security team has wanted to dump...

chrome/tools/ipclist/ipclist.cc

+// Copyright (c) 2010 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 <algorithm>
+#include <iostream>
+#include <string>
+#include <vector>
+
+// Include once to get the type definitions
+#include "chrome/tools/ipclist/all_messages.h"
+
+struct msginfo {
+  const char* name;
+  int id;
+  int in_count;
+  int out_count;
+
+  bool operator< (const msginfo other) const {
+    return id < other.id;
+  }
+};
+
+// Redefine macros to generate table
+#include "ipc/ipc_message_null_macros.h"
+#undef IPC_MESSAGE_DECL
+#define IPC_MESSAGE_DECL(kind, type, name, in, out, ilist, olist) \
+  { #name, IPC_MESSAGE_ID(), in, out },
+
+static msginfo msgtable[] = {
+#include "chrome/tools/ipclist/all_messages.h"
+};
+#define MSGTABLE_SIZE (sizeof(msgtable)/sizeof(msgtable[0]))
+
+static bool check_msgtable() {
+  bool result = true;
+  int previous_class_id = 0;
+  int highest_class_id = 0;
+  std::vector<int> exemptions;
+
+  // Exclude test files from consideration.  Do not include message
+  // files used inside the actual chrome browser in this list.
+  exemptions.push_back(TestMsgStart);
+  exemptions.push_back(FirefoxImporterUnittestMsgStart);
+
+  for (size_t i = 0; i < MSGTABLE_SIZE; ++i) {
+    int class_id = IPC_MESSAGE_ID_CLASS(msgtable[i].id);
+    if (class_id >= LastIPCMsgStart) {
+      std::cout << "Invalid LastIPCMsgStart setting\n";
+      result = false;
+    }
+    while (class_id > previous_class_id + 1) {
+      std::vector<int>::iterator iter;
+      iter = find(exemptions.begin(), exemptions.end(), previous_class_id+1);
+      if (iter == exemptions.end()) {
+        std::cout << "Missing message file: gap before " << class_id << "\n";
+        result = false;
+        break;
+      }
+      ++previous_class_id;
+    }
+    previous_class_id = class_id;
+    if (class_id > highest_class_id)
+      highest_class_id = class_id;
+  }
+
+  if (LastIPCMsgStart > highest_class_id + 1) {
+      std::cout << "Missing message file: gap before LastIPCMsgStart\n";
+      result = false;
+  }
+
+  if (!result)
+    std::cout << "Please check chrome/tools/ipclist/all_messages.h.\n";
+
+  return result;
+}
+
+static void dump_msgtable(bool show_args, bool show_ids) {
+  for (size_t i = 0; i < MSGTABLE_SIZE; ++i) {
+    if (show_ids) {
+      std::cout << "{" << IPC_MESSAGE_ID_CLASS(msgtable[i].id) << ", " <<
+          IPC_MESSAGE_ID_LINE(msgtable[i].id) << "}: ";
+    }
+    std::cout << msgtable[i].name;
+    if (show_args) {
+      std::cout << "(" << msgtable[i].in_count << " IN, "  <<
+          msgtable[i].out_count << " OUT)";
+    }
+    std::cout << "\n";
+  }
+}
+
+int main(int argc, char **argv) {
+  bool show_args = false;
+  bool show_ids  = false;
+  bool skip_check = false;
+
+  while (--argc > 0) {
+    ++argv;
+    if (std::string("--args") == *argv) {
+      show_args = true;
+    } else if (std::string("--ids") == *argv) {
+      show_ids = true;
+    } else if (std::string("--no-check") == *argv) {
+      skip_check = true;
+    } else {
+      std::cout << "usage: ipclist [--args] [--ids] [--no-check]\n";
+      return 1;
+    }
+  }
+
+  std::sort(msgtable, msgtable + MSGTABLE_SIZE);
+
+  if (!skip_check && check_msgtable() == false)
+    return 1;
+
+  dump_msgtable(show_args, show_ids);
+  return 0;
+}
+