/* cygwin/socket.h

   Copyright 1999, 2000, 2001 Red Hat, Inc.

This file is part of Cygwin.

This software is a copyrighted work licensed under the terms of the
Cygwin license.  Please consult the file "CYGWIN_LICENSE" for
details. */

#ifndef _CYGWIN_SOCKET_H
#define _CYGWIN_SOCKET_H

#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */

struct sockaddr {
  unsigned short	sa_family;	/* address family, AF_xxx	*/
  char			sa_data[14];	/* 14 bytes of protocol address	*/
};

#include <asm/socket.h>			/* arch-dependent defines	*/
#include <cygwin/sockios.h>		/* the SIOCxxx I/O controls	*/
#include <cygwin/uio.h>			/* iovec support		*/
#include <sys/types.h>

struct linger {
  unsigned short			l_onoff;	/* Linger active		*/
 unsigned short			l_linger;	/* How long to linger for	*/
};

struct msghdr
{
	void	*	msg_name;	/* Socket name			*/
	int		msg_namelen;	/* Length of name		*/
	struct iovec *	msg_iov;	/* Data blocks			*/
	int		msg_iovlen;	/* Number of blocks		*/
	void	*	msg_accrights;	/* Per protocol magic (eg BSD file descriptor passing) */
	int		msg_accrightslen;	/* Length of rights list */
};

#ifndef socklen_t
#define socklen_t int
#endif

/* Socket types. */
#define SOCK_STREAM	1		/* stream (connection) socket	*/
#define SOCK_DGRAM	2		/* datagram (conn.less) socket	*/
#define SOCK_RAW	3		/* raw socket			*/
#define SOCK_RDM	4		/* reliably-delivered message	*/
#define SOCK_SEQPACKET	5		/* sequential packet socket	*/

/* Supported address families. */
/*
 * Address families.
 */
#define AF_UNSPEC       0               /* unspecified */
#define AF_UNIX         1               /* local to host (pipes, portals) */
#define AF_LOCAL        1               /* POSIX name for AF_UNIX */
#define AF_INET         2               /* internetwork: UDP, TCP, etc. */
#define AF_IMPLINK      3               /* arpanet imp addresses */
#define AF_PUP          4               /* pup protocols: e.g. BSP */
#define AF_CHAOS        5               /* mit CHAOS protocols */
#define AF_NS           6               /* XEROX NS protocols */
#define AF_ISO          7               /* ISO protocols */
#define AF_OSI          AF_ISO          /* OSI is ISO */
#define AF_ECMA         8               /* european computer manufacturers */
#define AF_DATAKIT      9               /* datakit protocols */
#define AF_CCITT        10              /* CCITT protocols, X.25 etc */
#define AF_SNA          11              /* IBM SNA */
#define AF_DECnet       12              /* DECnet */
#define AF_DLI          13              /* Direct data link interface */
#define AF_LAT          14              /* LAT */
#define AF_HYLINK       15              /* NSC Hyperchannel */
#define AF_APPLETALK    16              /* AppleTalk */
#define AF_NETBIOS      17              /* NetBios-style addresses */
#if 0					/* Not yet */
#define AF_INET6        23              /* IP version 6 */
#endif

#define AF_MAX          32
/*
 * Protocol families, same as address families for now.
 */
#define PF_UNSPEC       AF_UNSPEC
#define PF_UNIX         AF_UNIX
#define PF_LOCAL        AF_LOCAL
#define PF_INET         AF_INET
#define PF_IMPLINK      AF_IMPLINK
#define PF_PUP          AF_PUP
#define PF_CHAOS        AF_CHAOS
#define PF_NS           AF_NS
#define PF_ISO          AF_ISO
#define PF_OSI          AF_OSI
#define PF_ECMA         AF_ECMA
#define PF_DATAKIT      AF_DATAKIT
#define PF_CCITT        AF_CCITT
#define PF_SNA          AF_SNA
#define PF_DECnet       AF_DECnet
#define PF_DLI          AF_DLI
#define PF_LAT          AF_LAT
#define PF_HYLINK       AF_HYLINK
#define PF_APPLETALK    AF_APPLETALK
#define PF_NETBIOS      AF_NETBIOS
#if 0
#define PF_INET6        AF_INET6
#endif

#define PF_MAX          AF_MAX

/* Maximum queue length specificable by listen.  */
#define SOMAXCONN       0x7fffffff

/* Flags we can use with send/ and recv. */
#define MSG_OOB         0x1             /* process out-of-band data */
#define MSG_PEEK        0x2             /* peek at incoming message */
#define MSG_DONTROUTE   0x4             /* send without using routing tables */
#define MSG_WINMASK     0x7             /* flags understood by WinSock calls */
#define MSG_NOSIGNAL    0x20            /* Don't raise SIGPIPE */

/* Setsockoptions(2) level. Thanks to BSD these must match IPPROTO_xxx */
#define SOL_IP		0
#define SOL_IPX		256
#define SOL_AX25	257
#define SOL_ATALK	258
#define	SOL_NETROM	259
#define SOL_TCP		6
#define SOL_UDP		17

/* IP options */
#ifndef IPTOS_LOWDELAY
#define	IPTOS_LOWDELAY		0x10
#define	IPTOS_THROUGHPUT	0x08
#define	IPTOS_RELIABILITY	0x04
#endif

/* These need to appear somewhere around here */
#define IP_DEFAULT_MULTICAST_TTL        1
#define IP_DEFAULT_MULTICAST_LOOP       1
#define IP_MAX_MEMBERSHIPS              20

/* IP options for use with WinSock */

#define IP_OPTIONS          1
#define IP_MULTICAST_IF     2
#define IP_MULTICAST_TTL    3
#define IP_MULTICAST_LOOP   4
#define IP_ADD_MEMBERSHIP   5
#define IP_DROP_MEMBERSHIP  6
#define IP_TTL              7
#define IP_TOS              8
#define IP_DONTFRAGMENT     9

/* IPX options */
#define IPX_TYPE	1

/* TCP options - this way around because someone left a set in the c library includes */
#ifndef TCP_NODELAY
#define TCP_NODELAY     0x0001
#define TCP_MAXSEG	2
#endif

/* The various priorities. */
#define SOPRI_INTERACTIVE	0
#define SOPRI_NORMAL		1
#define SOPRI_BACKGROUND	2

#ifdef __cplusplus
};
#endif /* __cplusplus */

#endif /* _CYGWIN_SOCKET_H */
