text: // 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 "chrome/installer/util/compat_checks.h"
  
  #include "base/strings/string_number_conversions.h"
  #include "base/strings/string_split.h"
  #include "base/strings/string_util.h"
  #include "base/win/registry.h"
  
  namespace {
  
  // SEP stands for Symantec End Point Protection.
  std::wstring GetSEPVersion() {
    const wchar_t kProductKey[] =
        L"SOFTWARE\\Symantec\\Symantec Endpoint Protection\\SMC";
    // Versions before 11MR3 were always 32-bit, so check in the 32-bit hive.
    base::win::RegKey key(
        HKEY_LOCAL_MACHINE, kProductKey, KEY_READ | KEY_WOW64_32KEY);
    std::wstring version_str;
    key.ReadValue(L"ProductVersion", &version_str);
    return version_str;
  }
  
  // The product version should be a string like "11.0.3001.2224". This function
  // returns as params the first 3 values. Return value is false if anything
  // does not fit the format.
  bool ParseSEPVersion(const base::string16& version,
                       int* v0, int* v1, int* v2) {
    std::vector<base::StringPiece16> v = base::SplitStringPiece(
        version, L".", base::TRIM_WHITESPACE, base::SPLIT_WANT_ALL);
    if (v.size() != 4)
      return false;
    if (!base::StringToInt(v[0], v0))
      return false;
    if (!base::StringToInt(v[1], v1))
      return false;
    if (!base::StringToInt(v[2], v2))
      return false;
    return true;
  }
  
  // The incompatible versions are anything before 11MR3, which is 11.0.3001.
  bool IsBadSEPVersion(int v0, int v1, int v2) {
    if (v0 < 11)
      return true;
    if (v1 > 0)
      return false;
    if (v2 < 3001)
      return true;
    return false;
  }
  
  }  // namespace
  
  bool HasIncompatibleSymantecEndpointVersion(const wchar_t* version) {
    int v0, v1, v2;
    std::wstring ver_str(version ? version : GetSEPVersion());
    if (!ParseSEPVersion(ver_str, &v0, &v1, &v2))
      return false;
    return IsBadSEPVersion(v0, v1, v2);
  }
  