/*
	i_socket.h	JCG TCPIP ソケット I/F

	JCG実行環境構築用プログラム・ヘッダファイル
	Copyright (C) 2000, 2001 Personal Media Corporation
*/
#ifndef	_I_SOCKET_H_
#define	_I_SOCKET_H_

#include <basic.h>

/*
	プロトコルファミリ
*/
#define	PF_UNSPEC	0		/* unspecified protocol family */
#define	PF_INET		2		/* TCP/IP and related */

/*
	アドレスファミリ
*/
#define	AF_UNSPEC	0		/* unspecified address family */
#define	AF_INET		2		/* TCP/IP and related */

/*
	ソケットタイプ
*/
#define	SOCK_STREAM	1		/* stream socket */
#define	SOCK_DGRAM	2		/* datagram socket */
#define	SOCK_RAW	3		/* raw-protocol interface */

/*
	オプション : getsockopt, setsockopt
*/
#define	SOL_SOCKET	0xffff		/* options for socket level */

#define	IPPROTO_TCP	0x0006		/* options for TCP level */
#define	IPPROTO_IP	0x0000		/* options for IP level */

#define	SO_DEBUG	0x0001		/* turn on debugging info recording */
#define	SO_REUSEADDR	0x0004		/* allow local address reuse */
#define	SO_KEEPALIVE	0x0008		/* keep connections alive */
#define	SO_DONTROUTE	0x0010		/* just use interface addresses */
#define	SO_BROADCAST	0x0020		/* permit sending of broadcast msgs */
#define	SO_LINGER	0x0080		/* linger on close if data present */
#define	SO_OOBINLINE	0x0100		/* leave received OOB data in line */
#define	SO_SNDBUF	0x1001		/* send buffer size */
#define	SO_RCVBUF	0x1002		/* receive buffer size */
#define	SO_ERROR	0x1007		/* get error status and clear */
#define	SO_TYPE		0x1008		/* get socket type */

#define	TCP_MAXSEG	0x0002		/* maximum segment size */
#define	TCP_NODELAY	0x0001		/* immediate send() */

#define	IP_OPTIONS	0x0001		/* IP header options */

/*
	オプション : recv, send
*/
#define MSG_OOB		0x01		/* send or receive out of band data */
#define MSG_PEEK	0x02		/* take data but leave it */
#define MSG_DONTROUTE	0x04		/* do not route */

/*
	オプション : fcntl
*/
#define O_NDELAY	0x04		/* non-blocking */
#define FNDELAY		O_NDELAY	/* synonym */
#define F_GETFL		3		/* get flags */
#define F_SETFL		4		/* set flags */

/*
	オプション : ioctl
*/
#define SIOCATMARK	(0x40000000 | (4 << 16) | ('s' << 8) | 7)
					/* check for out of bound data */
#define FIONBIO 	(0x80000000 | (4 << 16) | ('f' << 8) | 126)
					/* set/clear non-blocking I/O */
#define FIONREAD	(0x40000000 | (4 << 16) | ('f' << 8) | 127)
					/* number of bytes to read */

/*
	アドレス
*/
struct	sockaddr {
	unsigned short	sa_family;	/* address family */
	char		sa_data[14];	/* up to 14 bytes of direct address */
};

/*
	インターネットアドレス
*/
struct	in_addr {
	unsigned long	s_addr;
};

#define INADDR_ANY		(unsigned int)0x00000000
#define INADDR_BROADCAST	(unsigned int)0xffffffff  /* must be masked */

/*
	ソケットアドレス
*/
struct	sockaddr_in {
	short		sin_family;	/* address family, must be unsigned */
	unsigned short	sin_port;	/* port number, nutwork byte order */
	struct in_addr	sin_addr;	/* sockect address */
	char		sin_zero[8];	/* zero padding */
};

/*
	I/O ベクトル
*/
struct	iovec {				/* address and length */
	char	*iov_base;		/* base */
	int	iov_len;		/* size */
};

/*
	メッセージヘッダ : recvmsg, sendmsg
*/
struct	msghdr {			/* Message header */
	char	*msg_name;		/* optional address */
	int	msg_namelen;		/* size of address */
	struct iovec *msg_iov;		/* scatter/gather array */
	int	msg_iovlen;		/* # elements in msg_iov */
	char	*msg_accrights;		/* access rights sent/received */
	int	msg_accrightslen;	/* sizeof access rights */
};

/*
	host エントリ : gethostbyname
*/
struct	hostent {			/* structure for gethostbyname */
	char	*h_name;		/* official name of host */
	char	**h_aliases;		/* alias list */
	int	h_addrtype;		/* host address type */
	int	h_length;		/* length of address */
	char	**h_addr_list;		/* list of addresses from name server*/
#define	h_addr	h_addr_list[0]		/* address, for backward compatiblity*/
};

/*
	server エントリ : getservbyname
*/
struct	servent {			/* structure for getservbyname */
	char	*s_name;		/* official service name */
	char	**s_aliases;		/* alias list */
	int	s_port;			/* port # */
	char	*s_proto;		/* protocol to use */
};

/*
	オプション : SO_LINGER
*/
struct	linger {			/* structure for the SO_LINGER opt. */
	int	l_onoff;		/* zero=off, nonzero = on */
	int	l_linger;		/* linger time, in seconds */
};

/*
	ビットマスク : slecect
*/
#ifndef	FD_SETSIZE

#define FD_SETSIZE	256
#define NFDBITS 	(sizeof(long) * 8)	/* bits per mask */
#define FD_SET(n, p)	((p)->fds_bits[(n)/NFDBITS] |= (1 << ((n) % NFDBITS)))
#define FD_CLR(n, p)	((p)->fds_bits[(n)/NFDBITS] &= ~(1 << ((n) % NFDBITS)))
#define FD_ISSET(n, p)	((p)->fds_bits[(n)/NFDBITS] & (1 << ((n) % NFDBITS)))
#define FD_ZERO(p)	memset((void *)(p), 0, sizeof (*(p)))
typedef struct fd_set { 	/* Bit mask for select() */
	long	fds_bits[(FD_SETSIZE + NFDBITS - 1) / NFDBITS];
} fd_set;

#endif

/*
	タイムアウト : select
*/
struct	timeval {			/* Timeout format for select() */
	long	tv_sec;			/* seconds */
	long	tv_usec;		/* microseconds */
};

/*
	タイプ定義
*/
typedef	struct sockaddr	SOCKADDR;
typedef	struct hostent	HOSTENT;
typedef	struct msghdr	MSGHDR;
typedef	struct timeval	TIMEVAL;
typedef HOSTENT		*HOSTENTP;

/*
	特殊機能 : isoc_finish
*/
#define	isoc_control	isoc_finish

#define SO_BUFFERS	-100		/* 空きバッファ数 */
#define SO_USECOUNT	-101		/* 使用中カウンタ */
#define SO_LOCK 	-102		/* ロック */
#define SO_UNLOCK	-103		/* アンロック */
#define SO_ISLOCKED	-104		/* ロック状態 */
#define SO_PPPENABLE	-105		/* PPP 許可 */
#define SO_PPPDISABLE	-106		/* PPP 禁止 */
#define SO_PPPSTATUS	-107		/* PPP 状態 */

/*
	その他
*/
#define	HBUFLEN		64		/* for gethostbyname, gethostbyaddr */

/*
	ソケットインタフェース関数
*/
IMPORT	ERR	isoc_start(W arg);
IMPORT	ERR	isoc_finish(W arg);
IMPORT	WERR	isoc_accept(W s, SOCKADDR *nam, W *namlen);
IMPORT	ERR	isoc_bind(W s, SOCKADDR *nam, W namlen);
IMPORT	ERR	isoc_close(W s);
IMPORT	ERR	isoc_connect(W s, SOCKADDR *nam, W namlen);
IMPORT	WERR	isoc_fcntl(W s, W cmd, W arg);
IMPORT	ERR	isoc_gethostbyname(B *nam, HOSTENT *hp, B *buf);
IMPORT	ERR	isoc_gethostbyaddr(B *addr, W len, W type, HOSTENT *hp, B *buf);
IMPORT	ERR	isoc_getpeername(W s, SOCKADDR *nam, W *namlen);
IMPORT	ERR	isoc_getsockname(W s, SOCKADDR *nam, W *namlen);
IMPORT	ERR	isoc_getsockopt(W s, W level, W optnam, B *optval, W *optlen);
IMPORT	ERR	isoc_setsockopt(W s, W level, W optnam, B *optval, W optlen);
IMPORT	WERR	isoc_ioctl(W s, W request, W arg);
IMPORT	WERR	isoc_listen(W s, W backlog);
IMPORT	WERR	isoc_read(W s, B *buf, W len);
IMPORT	WERR	isoc_recv(W s, B *buf, W len, W flags);
IMPORT	WERR	isoc_recvfrom(W s, B *buf, W len, W flags, SOCKADDR *from, W *flen);
IMPORT	WERR	isoc_recvmsg(W s, MSGHDR *msg, int flags);
IMPORT	WERR	isoc_select(W nfds, fd_set *rfds, fd_set *wfds, fd_set *efds, TIMEVAL *tmout);
IMPORT	WERR	isoc_write(W s, B *buf, W len);
IMPORT	WERR	isoc_send(W s, B *buf, W len, W flags);
IMPORT	WERR	isoc_sendto(W s, B *buf, W len, W flags, SOCKADDR *to, W tolen);
IMPORT	WERR	isoc_sendmsg(W s, MSGHDR *msg, W flags);
IMPORT	ERR	isoc_shutdown(W s, W how);
IMPORT	WERR	isoc_socket(W domain, W type, W protocol);
IMPORT	ERR	isoc_gethostname(B *name, W nlen);
IMPORT	ERR	isoc_sethostname(B *name, W nlen);

#endif	/* I_SOCKET_H_ */