sendstru.h

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#define 	CODESIZ		5
#define 	ORDERSIZ  	6
#define		MAXDATASIZ	216
#define		MAXDATATRANSSIZ	180
struct CtlMsg {
		unsigned char  morepkt;
		unsigned char  pktype;
		unsigned char  unitend;
		unsigned char  save;
		unsigned short sequence;
		unsigned short length;
		unsigned long  msgtype;
	};


#define 	CTLMSGLEN	sizeof(struct CtlMsg)

struct header {
		char code[CODESIZ];
		char d_add[ORDERSIZ];
		char l_add[ORDERSIZ];
	};

#define 	HEADLEN		sizeof(struct header)

struct pktstru1 {
		struct 	CtlMsg	ctlmsg;
		struct  header  header;
		char    datatrans[MAXDATASIZ];
	};

#define 	PKTSTRULEN1 		sizeof(struct pktstru1)

struct PktTrans1 {
		struct  pktstru1 pktstru1;
	};


#define 	PKTLEN 		sizeof(struct PktTrans1)
struct DataTranslist{
		unsigned char  morepkt;
		unsigned char  pktype;
		unsigned char  unitend;
		unsigned char  save;
		unsigned short sequence;
		unsigned short length;
		unsigned long  msgtype;
		struct 	CtlMsg	ctlmsg;
		struct  header  header;
		char code[CODESIZ];
		char d_add[ORDERSIZ];
		char l_add[ORDERSIZ];
		char    datatrans[MAXDATATRANSSIZ];
		struct DataTranslist	*next;
	};

#define 	DATATRANSLEN	sizeof(struct DataTranslist)



struct packet {
		char data[PKTLEN];
		struct packet *next;
	};

#define PACKETSIZ 	sizeof(struct packet)