www.pudn.com > zmodemclass.zip > ZModemCore.h

//----------------------------------------------------------------------------- 
// project:		ZModem 
// author:		Frank Weiler, Genshagen, Germany 
// version:		0.91 
// date:		October 11, 2000 
// email:		frank@weilersplace.de 
// copyright:	This Software is OpenSource. 
// file:		ZModemCore.h 
//----------------------------------------------------------------------------- 
 
#if !defined(AFX_ZMODEMCORE_H__6A43214A_9C2E_11D4_8639_F6B82A27C85A__INCLUDED_) 
#define AFX_ZMODEMCORE_H__6A43214A_9C2E_11D4_8639_F6B82A27C85A__INCLUDED_ 
 
#if _MSC_VER > 1000 
#pragma once 
#endif // _MSC_VER > 1000 
 
#include "zmodemdef.h" 
#include "crcxm.h" 
#include "crc32.h" 
#include "ZModemComm.h" 
#include "ZModemFile.h" 
 
// macros 
#define ALLOK (GetLastError()==NO_ERROR) 
#define needsDLE(x) (((x) == ZDLE) || ((x) == 0x10) || ((x) == 0x11) || ((x) == 0x13)) //masking special ZModem chars 
 
// states of the zmodem state machine 
#define SM_SENDZDATA	0	//sending / receiving file information 
#define SM_SENDZEOF		1	//finishing file 
#define SM_SENDDATA		2	//data transfer is running 
#define SM_ACTIONRPOS	3	//reposition the filepointer during sending or receiving 
#define SM_WAITZRINIT	4	//waiting for initalisation finish 
 
// constants 
#define ZMCORE_MAXBUF 18000 
#define ZMCORE_MAXTX 1024	//sending/receiving max. 1024 bytes over com-port in one step 
 
// errors used by this implementation 
#define ZMODEM_INIT					0x20000001	//zmodem-initialization failed 
#define ZMODEM_POS					0x20000002	//force reposition 
#define ZMODEM_ZDATA				0x20000003	// 
#define ZMODEM_CRCXM				0x20000004	//16-bit-checksum error 
#define ZMODEM_LONGSP				0x20000005	//too long subpaket recieved 
#define ZMODEM_CRC32				0x20000006	//32-bit-checksum error 
#define ZMODEM_FILEDATA				0x20000007	//filedata has errors or missing 
#define ZMODEM_BADHEX				0x20000008	//unexpected hex-char received (in a hex header) 
#define ZMODEM_TIMEOUT				0x20000009	//by name 
#define ZMODEM_GOTZCAN				0x2000000A	//cancel recieved (form other side) 
#define ZMODEM_ABORTFROMOUTSIDE		0x2000000B	//user break 
#define ZMODEM_ERROR_FILE			0x2000000C	//file handling error (during open, create, read, write) 
 
// msgs used by this implementation, posted to notify window 
#define WM_USER_ZMODEMTOTALFILES            WM_USER+1	//number of files we will receiving 
#define WM_USER_ZMODEMTOTALSIZE             WM_USER+2	//size of all files we will receiving 
#define WM_USER_ZMODEMRPOS					WM_USER+3	//reposition was done (mostly forced by checksum errors) 
#define WM_USER_ZMODEMERROR					WM_USER+4	//generic error 
#define WM_USER_ZMODEMPROGRESS				WM_USER+5	//informs about the sent or received bytes 
#define WM_USER_ZMODEMNEXTFILE              WM_USER+6	//file sending/receiving starts 
#define WM_USER_ZMODEMNEXTFILESIZE          WM_USER+7	//by name 
 
// ZModem core class 
class ZMODEM CZModemCore 
{ 
public: 
	//construction, destruction 
	CZModemCore(HWND howner,HANDLE hcomm,HANDLE hcancelevent); 
	virtual ~CZModemCore(); 
	//actions 
	bool Send(CStringArray* filelist); 
	bool Receive(CStringArray* filelist,CString receivedir); 
protected: 
	// layer 3 methods 
	void ResetAll(); 
	bool sendFiles(); 
	bool sendFile(); 
	void receiveFile(); 
	void receiveData(); 
	// layer 2 methods 
	void getZMHeaderImmediate(); 
	void getZMHeader(); 
	void getOO(); 
	void getFILEINFO(); 
	void sendZRINIT(); 
	void sendZSKIP(); 
	void sendZRPOS(); 
	void sendZFIN(); 
	void sendZACK(); 
	void sendrz(); 
	void sendZRQINIT(); 
	void sendZFILE(); 
	void sendFILEINFO(); 
	void sendZDATA(); 
	void sendZEOF(); 
	void sendOO(); 
	// layer 1 methods 
	void sendHeader(); 
	void sendHexHeader(); 
	void sendBinHeader(); 
	void sendBin32Header(); 
	void getHexHeader(); 
	void getBinaryHeader(); 
	void getBin32Header(); 
	void getData(); 
	void getData16(); 
	void getData32(); 
	bool posMatch(); 
	void sendData(); 
    void sendData32(int len,char frameend); 
    void sendData16(int len,char frameend); 
	// layer 0 methods 
	void getNextHexCh(); 
	void getNextDLECh(); 
	void getNextCh(); 
	void sendChar(); 
	void sendChar(int c); 
	void sendDLEChar(); 
	void sendHexChar(); 
	// data members 
	int ch; 
	int gotSpecial; 
	bool m_bWait; 
	int gotHeader; 
	unsigned char frameType; 
	unsigned char headerType; 
	int headerData[4]; 
	int moreData; 
	char mainBuf[1024]; 
	char* bufPos; 
	char* bufTop; 
	DWORD goodOffset; 
	DWORD bytes; 
	bool bcrc32,bcanfdx; 
	bool skip; 
	DWORD maxTx; 
	// 
	HWND m_hOwner; 
	HANDLE m_hcomm; 
	HANDLE m_hCancelEvent; 
	CZModemComm* m_ZModemComm; 
	CZModemFile* m_ZModemFile; 
	CStringArray* m_Filelist; 
}; 
 
#endif // !defined(AFX_ZMODEMCORE_H__6A43214A_9C2E_11D4_8639_F6B82A27C85A__INCLUDED_)