Function write_volume_name_if_changed

cppcryptfs/dokan/cryptdokan.cpp:2419–2468

BOOL write_volume_name_if_changed(WCHAR dl, wstring& mes) {

  
  wstring fs_root;

  fs_root.push_back(dl);
  fs_root.push_back(':');

  CryptThreadData *tdata = MountPointManager::getInstance().get(fs_root.c_str());

  if (!tdata) {
      mes += LocUtils::GetStringFromResources(IDS_MPOINT_NOT_FOUND);
	  return FALSE;
  }

  fs_root.push_back('\\');

  CryptContext *con = &tdata->con;

  if (!con) {
      mes += LocUtils::GetStringFromResources(IDS_MPOINT_NULL);
	  return FALSE;
  }

  KeyDecryptor kdc(&con->GetConfig()->m_keybuf_manager);

  WCHAR volbuf[256];

  if (!GetVolumeInformationW(&fs_root[0], volbuf,
                             sizeof(volbuf) / sizeof(volbuf[0]) - 1, NULL, NULL,
                             NULL, NULL, 0)) {
    DWORD error = GetLastError();
    DbgPrint(L"update volume name error = %u\n", error);
    CString strMsg;
    strMsg.Format(LocUtils::GetStringFromResources(IDS_UNABLE_GET_VOLUME_INFO).c_str(), GetWindowsErrorString(error));
    mes += strMsg;
    return FALSE;
  }

  if (con->GetConfig()->m_VolumeName != volbuf) {
    con->GetConfig()->m_VolumeName = volbuf;
    bool res = con->GetConfig()->write_updated_config_file(nullptr, nullptr, 0);
	if (!res) {
        mes += LocUtils::GetStringFromResources(IDS_UNABLE_WRITE_NEW_VOL_NAME);
		return FALSE;
	}
  }

  return TRUE;
}

BOOL have_security_name_privilege() {
  static BOOL bHaveName = FALSE;