glibc/sysdeps/unix/sysv/linux/netinet/in.h

/* Copyright (C) 1991, 92, 93, 94, 95, 96 Free Software Foundation, Inc.
This file is part of the GNU C Library.

The GNU C Library is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.

The GNU C Library 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 the GNU C Library; see the file COPYING.  If not, write to
the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */

#ifndef	_NETINET_IN_H

#define	_NETINET_IN_H	1
#include <features.h>

#include <sys/socket.h>
#include <linux/in.h>

/* Standard well-known ports.  */
enum
  {
    IPPORT_ECHO = 7,		/* Echo service.  */
    IPPORT_DISCARD = 9,		/* Discard transmissions service.  */
    IPPORT_SYSTAT = 11,		/* System status service.  */
    IPPORT_DAYTIME = 13,	/* Time of day service.  */
    IPPORT_NETSTAT = 15,	/* Network status service.  */
    IPPORT_FTP = 21,		/* File Transfer Protocol.  */
    IPPORT_TELNET = 23,		/* Telnet protocol.  */
    IPPORT_SMTP = 25,		/* Simple Mail Transfer Protocol.  */
    IPPORT_TIMESERVER = 37,	/* Timeserver service.  */
    IPPORT_NAMESERVER = 42,	/* Domain Name Service.  */
    IPPORT_WHOIS = 43,		/* Internet Whois service.  */
    IPPORT_MTP = 57,

    IPPORT_TFTP = 69,		/* Trivial File Transfer Protocol.  */
    IPPORT_RJE = 77,
    IPPORT_FINGER = 79,		/* Finger service.  */
    IPPORT_TTYLINK = 87,
    IPPORT_SUPDUP = 95,		/* SUPDUP protocol.  */


    IPPORT_EXECSERVER = 512,	/* execd service.  */
    IPPORT_LOGINSERVER = 513,	/* rlogind service.  */
    IPPORT_CMDSERVER = 514,
    IPPORT_EFSSERVER = 520,

    /* UDP ports.  */
    IPPORT_BIFFUDP = 512,
    IPPORT_WHOSERVER = 513,
    IPPORT_ROUTESERVER = 520,

    /* Ports less than this value are reserved for privileged processes.  */
    IPPORT_RESERVED = 1024,

    /* Ports greater this value are reserved for (non-privileged) servers.  */
    IPPORT_USERRESERVED = 5000
  };


/* Link numbers.  */
#define	IMPLINK_IP		155
#define	IMPLINK_LOWEXPER	156
#define	IMPLINK_HIGHEXPER	158

/* Get the definition of the macro to define the common sockaddr members.  */
#include <sockaddrcom.h>

/* Structure used to describe IP options for IP_OPTIONS and IP_RETOPTS.
   The `ip_dst' field is used for the first-hop gateway when using a
   source route (this gets put into the header proper).  */
struct ip_opts
  {
    struct in_addr ip_dst;	/* First hop; zero without source route.  */
    char ip_opts[40];		/* Actually variable in size.  */
  };

__BEGIN_DECLS

/* Functions to convert between host and network byte order.  */

extern unsigned long int ntohl __P ((unsigned long int));
extern unsigned short int ntohs __P ((unsigned short int));
extern unsigned long int htonl __P ((unsigned long int));
extern unsigned short int htons __P ((unsigned short int));

/* Bind socket FD to a privileged IP address SIN.  */
extern int bindresvport __P ((int __fd, struct sockaddr_in * __sin));

__END_DECLS

#include <endian.h>

#if __BYTE_ORDER == __BIG_ENDIAN
/* The host byte order is the same as network byte order,
   so these functions are all just identity.  */
#undef ntohl
#define	ntohl(x)	(x)
#undef ntohs
#define	ntohs(x)	(x)
#undef htonl
#define	htonl(x)	(x)
#undef htons
#define	htons(x)	(x)
#endif

#endif	/* netinet/in.h */