examples: harden systemd services

[thirdparty/chrony.git] / addressing.h

/*
  chronyd/chronyc - Programs for keeping computer clocks accurate.

 **********************************************************************
 * Copyright (C) Richard P. Curnow  1997-2002
 * 
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of version 2 of the GNU General Public License as
 * published by the Free Software Foundation.
 * 
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License along
 * with this program; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 * 
 **********************************************************************

  =======================================================================

  Types used for addressing sources etc
  */

#ifndef GOT_ADDRESSING_H
#define GOT_ADDRESSING_H

#include "sysincl.h"

/* This type is used to represent an IPv4 address or IPv6 address.
   Addresses which are not resolved yet can be represented with an ID.
   All parts are in HOST order, NOT network order. */

#define IPADDR_UNSPEC 0
#define IPADDR_INET4 1
#define IPADDR_INET6 2
#define IPADDR_ID 3

typedef struct {
  union { 
    uint32_t in4;
    uint8_t in6[16];
    uint32_t id;
  } addr;
  uint16_t family;
  uint16_t _pad;
} IPAddr;

typedef struct {
  IPAddr ip_addr;
  uint16_t port;
} IPSockAddr;

typedef IPSockAddr NTP_Remote_Address;

#define INVALID_IF_INDEX -1

typedef struct {
  IPAddr ip_addr;
  int if_index;
  int sock_fd;
} NTP_Local_Address;

#endif /* GOT_ADDRESSING_H */