From 3b276e968ec38aad333916911cf180d274900b9d Mon Sep 17 00:00:00 2001 From: mysticbbs Date: Sun, 12 Aug 2012 05:26:22 -0400 Subject: [PATCH] Blah --- mdl/m_ops.pas | 5 +- mdl/m_protocol_zmodem.pas | 174 +++++++++++++++++++++++++++----------- 2 files changed, 125 insertions(+), 54 deletions(-) diff --git a/mdl/m_ops.pas b/mdl/m_ops.pas index 2dc8ce0..1882302 100644 --- a/mdl/m_ops.pas +++ b/mdl/m_ops.pas @@ -28,8 +28,8 @@ ------------------------------------------------------------------------- } -{.$DEFINE DEBUG} -{$DEFINE RELEASE} +{$DEFINE DEBUG} +{.$DEFINE RELEASE} {.$DEFINE LOGGING} { ------------------------------------------------------------------------- } @@ -63,7 +63,6 @@ {$BOOLEVAL OFF} {$IMPLICITEXCEPTIONS OFF} {$OBJECTCHECKS OFF} -{$MODESWITCH NESTEDPROCVARS} {$IFDEF CPUX86_64 {$FPUTYPE SSE64} diff --git a/mdl/m_protocol_zmodem.pas b/mdl/m_protocol_zmodem.pas index 461c59b..78e8f92 100644 --- a/mdl/m_protocol_zmodem.pas +++ b/mdl/m_protocol_zmodem.pas @@ -2,10 +2,12 @@ Unit m_Protocol_Zmodem; {$I M_OPS.PAS} -{.$DEFINE ZDEBUG} +{$DEFINE ZDEBUG} Interface +// Ported from ZMODEM.C + Uses DOS, m_CRC, @@ -95,7 +97,7 @@ Const XOFF = 19; CAN = 24; ZCAN = 16; - CDLE = 16; + DLE = 16; ZBIN = 65; GOTCAN = 272; ZCRCE = 104; @@ -132,9 +134,9 @@ Const ZSINIT = 2; ZFREECNT = 17; ZCOMPL = 15; - cDleHi = cDle + $80; - cXonHi = Xon + $80; - cXoffHi = Xoff + $80; + DleHi = Dle OR $80; + XonHi = Xon OR $80; + XoffHi = Xoff OR $80; CancelStr : String = #24#24#24#24#24#24#24#24#8#8#8#8#8#8#8#8; @@ -165,6 +167,7 @@ Begin GOTCRCG : Result := 'GOTCRCG'; GOTCRCQ : Result := 'GOTCRCQ'; GOTCRCW : Result := 'GOTCRCW'; + ZCRC : Result := 'ZCRC'; Else Result := 'UNKNOWN:' + strI2S(Ord(B)); End; @@ -279,7 +282,42 @@ Function TProtocolZmodem.ZDLRead : SmallInt; Begin Result := ReadByteTimeOut(RxTimeOut); - If Result <> CAN Then Exit; + If Result <> ZDLE Then Exit; + + Result := ReadByteTimeOut(RxTimeOut); + + If Result = CAN Then Begin + Result := ReadByteTimeOut(RxTimeOut); + If Result = CAN Then Begin + Result := ReadByteTimeOut(RxTimeOut); + If Result = CAN Then + Result := ReadByteTimeOut(RxTimeOut); + End + End; + + Case Result of + CAN : Result := GOTCAN; + ZCRCE, + ZCRCG, + ZCRCQ, + ZCRCW : Result := (Result OR 256); + ZRUB0 : Result := $007F; + ZRUB1 : Result := $00FF; + Else + If Result >= 0 Then + If ((Result AND $60) = $40) Then + Result := Result XOR $40 + Else + Result := ZERROR; + End; +End; + +(* +Function TProtocolZmodem.ZDLRead : SmallInt; +Begin + Result := ReadByteTimeOut(RxTimeOut); + + If Result <> ZDLE Then Exit; Result := ReadByteTimeOut(RxTimeOut); @@ -308,6 +346,7 @@ Begin Result := ZERROR; End; End; +*) Function TProtocolZmodem.ZReceiveBinaryHeader (Var Hdr: ZHdrType) : SmallInt; Var @@ -415,41 +454,35 @@ Begin End; Procedure TProtocolZmodem.SendEscaped (B: SmallInt); -Var - C1 : Char; - C2 : Char; Begin - If (EscapeAll) And ((B AND $60) = 0) Then Begin - Client.BufWriteChar(Char(ZDLE)); - LastSent := B XOR $40; - End Else If (B and $11) = 0 Then - LastSent := B - Else Begin - C1 := Char(B and $7F); - C2 := Char(LastSent and $7F); + Case B of + DLE, + DLEHI, + XON, + XONHI, + XOFF, + XOFFHI, + ZDLE : Begin + Client.BufWriteChar(Char(ZDLE)); + LastSent := B XOR $40; + End; + 13, + 13 OR $80 : If {EscapeAll And} (LastSent AND $7F = Ord('@')) Then Begin + Client.BufWriteChar(Char(ZDLE)); + LastSent := B XOR $40; + End Else + LastSent := B; + 255 : Begin + Client.BufWriteChar(Char(ZDLE)); + LastSent := ZRUB1; + End; - Case B of - Xon, - Xoff, - cDle, - cXonHi, - cXoffHi, - cDleHi, - ZDle : Begin - Client.BufWriteChar(Char(ZDLE)); - LastSent := B xor $40; - End; - 255 : Begin - Client.BufWriteChar(Char(ZDLE)); - LastSent := ZRUB1; - End; - Else - If ((C1 = #13) and (C2 = #$40)) Then Begin - Client.BufWriteChar(Char(ZDLE)); - LastSent := B xor $40; - End Else - LastSent := B; - End; + Else + If {(EscapeAll) and} ((B AND $60) = 0) Then Begin + Client.BufWriteChar(Char(ZDLE)); + LastSent := B XOR $40; + End Else + LastSent := B; End; Client.BufWriteChar(Char(LastSent)); @@ -907,11 +940,28 @@ Begin Exit; End; ZCRC : Begin + {$IFDEF ZDEBUG} ZLog('ZSendFile -> Sending File CRC response'); {$ENDIF} + ZPutLong(FileCRC32(Status.FilePath + Status.FileName)); ZSendHexHeader(ZCRC); - Continue; + RxPos := 0; + + // SYNCTERM expects ZDATA after a ZCRC i am not sure + // this is correct because how do we know the ZPOS from + // receiver if it works this way? zmodem doc isnt very + // clear on this. Lets try it... + + Goto Start; //Continue; End; +(* is SYNCTERM really asking for the FREENCNT here????? WTF + ZFREECNT: Begin + ZPutLong (LongInt($FFFFFFFF)); + ZSendHexHeader (ZACK); + + Continue; + End; +*) ZRPOS : Goto Start; End; Until (C <> ZRINIT); @@ -961,6 +1011,8 @@ Start: StatusUpdate(False, False); StatusTimer := TimerSet(StatusCheck); End; + + {$IFDEF ZDEBUG} ZLog('ZSendFile -> Sent ZDATA block position now: ' + strI2S(TxPos)); {$ENDIF} End Else Begin {$IFDEF ZDEBUG} ZLog('ZSendFile -> Sending ZEOF want ZRINIT'); {$ENDIF} @@ -1006,6 +1058,8 @@ Start: ioSeek (WrkFile, TxPos); + {$IFDEF ZDEBUG} ZLog('ZSendFile -> Got ZRPOS Sending ZDATA position: ' + strI2S(TxPos)); {$ENDIF} + Client.PurgeInputData; Client.PurgeOutputData; @@ -1041,7 +1095,7 @@ Start: Exit; End; End; - End; + End {$IFDEF ZDEBUG}Else ZLog('ZSendFile -> Nonsense response: ' + HeaderType(C)) {$ENDIF}; End; End; @@ -1158,15 +1212,26 @@ Again: If ZReceiveData (RxBuf, ZATTNLEN) = GOTCRCW Then Begin Attn := ''; Tmp := 0; + While RxBuf[Tmp] <> 0 Do Begin Attn := Attn + Chr(RxBuf[Tmp]); Inc (Tmp); End; + ZPutLong (1); ZSendHexHeader (ZACK); End Else ZSendHexHeader (ZNAK); +(* + RxBufLen := (Word(RxHdr[ZP1]) SHL 8) OR RxHdr[ZP0]; + UseCrc32 := (RxHdr[ZF0] AND CANFC32) <> 0; + EscapeAll := (RxHdr[ZF0] AND ESCALL) = ESCALL; + {$IFDEF ZDEBUG} ZLog('ZInitSender -> ZSINIT'); {$ENDIF} + {$IFDEF ZDEBUG} ZLog('ZInitSender -> CRC32:' + strI2S(Ord(UseCrc32))); {$ENDIF} + {$IFDEF ZDEBUG} ZLog('ZInitSender -> EscapeAll:' + strI2S(Ord(EscapeAll))); {$ENDIF} + {$IFDEF ZDEBUG} ZLog('ZInitSender -> BlockSize:' + strI2S(RxBufLen)); {$ENDIF} +*) Goto Again; End; ZFREECNT: Begin @@ -1178,10 +1243,12 @@ Again: ZCOMMAND: Begin If ZReceiveData (RxBuf, ZBUFSIZE) = GOTCRCW Then Begin ZPutLong (0); + Repeat ZSendHexHeader (ZCOMPL); Inc (Errors); Until (Errors >= 10) or (ZGetHeader(RxHdr) = ZFIN); + ZAckBiBi; ZInitSender := ZCOMPL; Exit; @@ -1212,13 +1279,15 @@ Label ErrorCRC16, ErrorCRC32; Var - C, D : SmallInt; - CRC : SmallInt; - ulCRC : LongInt; - Count : SmallInt; + C, D : SmallInt; + CRC : SmallInt; + ulCRC : LongInt; + Count : SmallInt; Begin RxCount := 0; + {$IFDEF ZDEBUG} ZLog('ZReceiveData -> begin'); {$ENDIF} + If RxFrameIdx = ZBIN32 Then Begin ulCRC := LongInt($FFFFFFFF); @@ -1251,6 +1320,8 @@ ErrorCRC32: Exit; End; + {$IFDEF ZDEBUG} ZLog('ZReceiveData -> Successful packet ' + HeaderType(D) + ' size ' + strI2S(RxCount)); {$ENDIF} + Result := D; Exit; @@ -1260,6 +1331,8 @@ ErrorCRC32: Exit; End; Else + {$IFDEF ZDEBUG} ZLog('ZReceiveData -> Got bad frame type? ' + HeaderType(C)); {$ENDIF} + ZReceiveData := C; Exit; End; @@ -1326,7 +1399,7 @@ ErrorCRC16: End; End; - {$IFDEF ZDEBUG} ZLog('ZReceiveData -> ZERROR (frameidx=' + strI2S(RxFrameIdx) + ')'); {$ENDIF} + {$IFDEF ZDEBUG} ZLog('ZReceiveData -> Long packet (frameidx=' + strI2S(RxFrameIdx) + '; rxcount=' + strI2S(RxCount) + ')'); {$ENDIF} ZReceiveData := ZERROR; End; @@ -1526,7 +1599,7 @@ MoreData: C := ZReceiveData(RxBuf, ZBUFSIZE); - {$IFDEF ZDEBUG} ZLog('ZRecvFile -> MoreData -> Got ' + HeaderType(C)); {$ENDIF} + {$IFDEF ZDEBUG} ZLog('ZRecvFile -> MoreData -> Got ' + HeaderType(C) + ' want data packet'); {$ENDIF} Case C of { we can combine zreceivedata and case here } ZCAN : Begin @@ -1577,10 +1650,9 @@ MoreData: BlockWrite (WrkFile, RxBuf, RxCount); - Rxbytes := RxBytes + RxCount; + RxBytes := RxBytes + RxCount; ZPutLong (RxBytes); - ZSendBinaryHeader (ZACK); Status.Position := RxBytes; @@ -1603,9 +1675,9 @@ MoreData: GOTCRCE : Begin RetryCount := 25; - BlockWrite (WrkFile, RxBuf, Rxcount); + BlockWrite (WrkFile, RxBuf, RxCount); - Rxbytes := RxBytes + Rxcount; + RxBytes := RxBytes + RxCount; Status.Position := RxBytes; Status.BlockSize := RxCount;