User.h

// -*- indent-tabs-mode: nil -*-

#ifndef __ARC_USER_H__
#define __ARC_USER_H__

#include <string>
#include <arc/Thread.h>

struct passwd;

namespace Arc {


  class User {
  private:
    // local name, home directory, uid and gid of this user
    std::string name;
    std::string home;
    int uid;
    int gid;
    bool valid;
    bool set(const struct passwd*);

  public:
    User();

    User(const std::string& name, const std::string& group="");

    User(int uid, int gid=-1);
    operator bool() const {
      return valid;
    }
    bool operator !() const {
      return !valid;
    }
    const std::string& Name(void) const {
      return name;
    }
    const std::string& Home(void) const {
      return home;
    }
    int get_uid(void) const {
      return (int)uid;
    }
    int get_gid(void) const {
      return (int)gid;
    }
    bool operator==(const std::string& n) {
      return (n == name);
    }

    int check_file_access(const std::string& path, int flags) const;

    bool SwitchUser() const;
  }; // class User


  class UserSwitch {
  private:
    static SimpleCondition suid_lock;
    static int suid_count;
    static int suid_uid_orig;
    static int suid_gid_orig;
    bool valid;
  public:
    UserSwitch(int uid,int gid);
    ~UserSwitch(void);
    operator bool(void) { return valid; };
    void resetPostFork(void);
  }; // class UserSwitch


} // namespace Arc

#endif