privilege-helper.hpp

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/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
#ifndef NFD_CORE_PRIVILEGE_HELPER_HPP
#define NFD_CORE_PRIVILEGE_HELPER_HPP

#include "common.hpp"

#include <unistd.h>

namespace nfd {

class PrivilegeHelper
{
public:

  class Error
  {
  public:
    explicit
    Error(const std::string& what)
      : m_whatMessage(what)
    {
    }

    const char*
    what() const
    {
      return m_whatMessage.c_str();
    }

  private:
    const std::string m_whatMessage;
  };

  static void
  initialize(const std::string& userName, const std::string& groupName);

  static void
  drop();

  static void
  runElevated(function<void()> f);

PUBLIC_WITH_TESTS_ELSE_PRIVATE:

  static void
  raise();

PUBLIC_WITH_TESTS_ELSE_PRIVATE:
#ifdef HAVE_PRIVILEGE_DROP_AND_ELEVATE
  static uid_t s_normalUid;
  static gid_t s_normalGid;

  static uid_t s_privilegedUid;
  static gid_t s_privilegedGid;
#endif // HAVE_PRIVILEGE_DROP_AND_ELEVATE
};

} // namespace nfd

#endif // NFD_CORE_PRIVILEGE_HELPER_HPP