netuser.h

用于底层开发的TCPIP协议栈源代码

#ifndef	_NETUSER_H
#define	_NETUSER_H

/* Global structures and constants needed by an Internet user process */

#ifndef	_GLOBAL_H
#include "global.h"
#endif

#define	NCONN	20		/* Maximum number of open network connections */

extern int32 Ip_addr;	/* Our IP address */
extern int Net_error;	/* Error return code */
extern char Inet_eol[];

#define	NONE		0	/* No error */
#define	CON_EXISTS	1	/* Connection already exists */
#define	NO_CONN		2	/* Connection does not exist */
#define	CON_CLOS	3	/* Connection closing */
#define	NO_MEM		4	/* No memory for TCB creation */
#define	WOULDBLK	5	/* Would block */
#define	NOPROTO		6	/* Protocol or mode not supported */
#define	INVALID		7	/* Invalid arguments */

/* Codes for the tcp_open call */
#define	TCP_PASSIVE	0
#define	TCP_ACTIVE	1
#define	TCP_SERVER	2	/* Passive, clone on opening */

/* Local IP wildcard address */
#define	INADDR_ANY	0x0L

/* Socket structure */
struct socket {
	int32 address;		/* IP address */
	uint16 port;		/* port number */
};

/* Connection structure (two sockets) */
struct connection {
	struct socket local;
	struct socket remote;
};
/* In domain.c: */
int32 resolve(char *name);
int32 resolve_mx(char *name);
char *resolve_a(int32 ip_address, int shorten);

/* In netuser.c: */
int32 aton(char *s);
char *inet_ntoa(int32 a);
char *pinet(struct socket *s);

#endif	/* _NETUSER_H */