#ifndef PTYTTY_H
#define PTYTTY_H

#include "feature.h"

#if defined(HAVE_GRANTPT) && defined(HAVE_UNLOCKPT)
# if defined(PTYS_ARE_GETPT) || defined(PTYS_ARE_POSIX) || defined(PTYS_ARE_PTMX)
#  define NO_SETOWNER_TTYDEV 1
# endif
#endif
#if defined(__CYGWIN32__)
# define NO_SETOWNER_TTYDEV 1
#endif

#if UTMP_SUPPORT
# if !defined(RXVT_UTMPX_FILE) || !defined(HAVE_STRUCT_UTMPX)
#  undef HAVE_UTMPX_H
#  undef HAVE_STRUCT_UTMPX
# endif
# if !defined(RXVT_UTMP_FILE) || !defined(HAVE_STRUCT_UTMP)
#  undef HAVE_UTMP_H
#  undef HAVE_STRUCT_UTMP
# endif

# ifdef HAVE_UTMPX_H
#  include <utmpx.h>
# endif
# ifdef HAVE_UTMP_H
#  include <utmp.h>
# endif

# if ! defined(HAVE_STRUCT_UTMPX) && ! defined(HAVE_STRUCT_UTMP)
#  error cannot build with utmp support - no utmp or utmpx struct found
# endif

# ifdef HAVE_LASTLOG_H
#  include <lastlog.h>
# endif

# include <pwd.h>

# ifdef RXVT_UTMP_SYSV
#  ifndef USER_PROCESS
#   define USER_PROCESS		7
#  endif
#  ifndef DEAD_PROCESS
#   define DEAD_PROCESS		8
#  endif
# endif

# ifdef __QNX__
#  include <sys/utsname.h>
#  define ut_name		ut_user
# endif

#endif

enum rxvt_privaction { IGNORE = 'i', SAVE = 's', RESTORE = 'r' };

struct rxvt_ptytty {
  int pty; // pty file descriptor; connected to rxvt
  int tty; // tty file descriptor; connected to child

  virtual ~rxvt_ptytty ()
  {
    //
  }

  virtual bool get () = 0;
  virtual void put () = 0;

  virtual void login (int cmd_pid, bool login_shell, const char *hostname) = 0;
  virtual void logout () = 0;

  void close_tty ();

  bool make_controlling_tty ();
  void set_utf8_mode (bool on);
};

struct rxvt_ptytty_unix : rxvt_ptytty {
  char *name;

#ifndef RESET_TTY_TO_COMMON_DEFAULTS
  struct stat savestat; /* original status of our tty */
#endif
#ifndef NO_SETOWNER_TTYDEV
  void privileges (rxvt_privaction action);
  bool saved;
#endif
public:

  rxvt_ptytty_unix ();
  ~rxvt_ptytty_unix ();

#if UTMP_SUPPORT
  int utmp_pos;
  int cmd_pid;
  bool login_shell;

#ifdef HAVE_STRUCT_UTMP
  struct utmp ut;
#endif
#ifdef HAVE_STRUCT_UTMPX
  struct utmpx utx;
#endif
#if (defined(HAVE_STRUCT_UTMP) && defined(HAVE_UTMP_PID)) || defined(HAVE_STRUCT_UTMPX)
  char ut_id[5];
#endif

  bool get ();
  void put ();

  void login (int cmd_pid, bool login_shell, const char *hostname);
  void logout ();
#endif
};

#endif