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/*
* packet routines
*
* Some ideas borrowed from netrek.
*
* $Id: packet.h,v 1.6 2004/11/24 03:12:45 jon Exp $
*
* Copyright 2003 Jon Trulson under the ARTISTIC LICENSE. (See LICENSE).
*/
#ifndef PACKET_H_INCLUDED
#define PACKET_H_INCLUDED
#include "datatypes.h"
#include "protocol.h"
#define PKT_MAXSIZE 1024 /* no packet should ever be this large. gulp.*/
void pktNotImpl(void *); /* a no-show */
struct _packetent {
Unsgn32 pktid;
Unsgn32 size;
Unsgn8 *name;
void (*handler)();
};
/* directions from client/server */
#define PKT_TOCLIENT 0
#define PKT_TOSERVER 1
#define PKT_FROMCLIENT 2
#define PKT_FROMSERVER 3
/* error/severity codes for Acks, should make sure these sync to
psev2String(int psev) */
#define PSEV_INFO 0
#define PSEV_WARN 1
#define PSEV_ERROR 2
#define PSEV_FATAL 3
/* error codes */
#define PERR_OK 0 /* no error */
#define PERR_UNSPEC 1 /* unspecified */
#define PERR_BADPROTO 2 /* bad protocol */
#define PERR_BADCMN 3 /* common block mismatch */
#define PERR_INVUSER 4 /* invalid username */
#define PERR_NOUSER 5 /* no such user */
#define PERR_INVPWD 6 /* invalid password */
#define PERR_BADPWD 7 /* wrong password */
#define PERR_CLOSED 8 /* game closed */
#define PERR_REGISTER 9 /* register failed */
#define PERR_NOSHIP 10 /* no slots available */
#define PERR_LOSE 11 /* lose in menu() */
#define PERR_FLYING 12 /* already flying a ship (newship()) */
#define PERR_TOOMANYSHIPS 13 /* you are flying too many ships (newship()) */
#define PERR_CANCELED 14 /* an operation (bombing, etc) was canceled
for some reason. */
#define PERR_DONE 15 /* finished something - like beaming */
#define PERR_DOUDP 16 /* used in hello to tell server udp is ok */
#define PERR_PINGRESP 17 /* a ping reponse for nCP */
#ifdef NOPKT_EXTERN
int pktRXBytes = 0;
Unsgn32 pingAvgMS = 0;
#else
extern int pktRXBytes;
extern Unsgn32 pingAvgMS;
#endif
int sendAck(int sock, int dir, Unsgn8 severity, Unsgn8 code, Unsgn8 *msg);
int isConnDead(void);
void pktNotImpl(void *nothing);
void pktSetNodelay(int sock);
char *psev2String(int psev);
int invertDir(int dir);
int waitForPacket(int dir, int sockl[], int type, Unsgn8 *buf, int blen,
int delay, char *nakmsg);
int clientPktSize(int type);
int serverPktSize(int type);
int isPacketWaiting(int sock);
int writePacket(int direction, int sock, Unsgn8 *packet);
int readPacket(int direction, int sockl[], Unsgn8 *buf, int len,
unsigned int delay);
int validPkt(int pkttype, void *pkt);
#endif /* PACKET_H_INCLUDED */
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