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bool Archive::GetComment(Array<byte> &CmtData)
{
if (!MainComment)
return(false);
SaveFilePos SavePos(*this);
ushort CmtLength;
#ifndef SFX_MODULE
if (OldFormat)
{
Seek(SFXSize+SIZEOF_OLDMHD,SEEK_SET);
CmtLength=GetByte()+(GetByte()<<8);
}
else
#endif
{
if (NewMhd.Flags & MHD_COMMENT)
{
Seek(SFXSize+SIZEOF_MARKHEAD+SIZEOF_NEWMHD,SEEK_SET);
ReadHeader();
}
else
{
Seek(SFXSize+SIZEOF_MARKHEAD+NewMhd.HeadSize,SEEK_SET);
return(SearchSubBlock(SUBHEAD_TYPE_CMT)!=0 && ReadCommentData(CmtData)!=0);
}
#ifndef SFX_MODULE
if (CommHead.HeadCRC!=HeaderCRC)
{
Log(FileName,St(MLogCommHead));
Alarm();
return(false);
}
CmtLength=CommHead.HeadSize-SIZEOF_COMMHEAD;
#endif
}
#ifndef SFX_MODULE
if (OldFormat && (OldMhd.Flags & MHD_PACK_COMMENT) || !OldFormat && CommHead.Method!=0x30)
{
if (!OldFormat && (CommHead.UnpVer < 15 || CommHead.UnpVer > UNP_VER || CommHead.Method > 0x35))
return(false);
ComprDataIO DataIO;
Unpack Unpack(&DataIO);
Unpack.Init();
DataIO.SetTestMode(true);
uint UnpCmtLength;
if (OldFormat)
{
UnpCmtLength=GetByte()+(GetByte()<<8);
CmtLength-=2;
DataIO.SetCmt13Encryption();
}
else
UnpCmtLength=CommHead.UnpSize;
DataIO.SetFiles(this,NULL);
DataIO.EnableShowProgress(false);
DataIO.SetPackedSizeToRead(CmtLength);
Unpack.SetDestSize(UnpCmtLength);
Unpack.DoUnpack(CommHead.UnpVer,false);
if (!OldFormat && ((~DataIO.UnpFileCRC)&0xffff)!=CommHead.CommCRC)
{
Log(FileName,St(MLogCommBrk));
Alarm();
return(false);
}
else
{
unsigned char *UnpData;
uint UnpDataSize;
DataIO.GetUnpackedData(&UnpData,&UnpDataSize);
CmtData.Alloc(UnpDataSize);
memcpy(&CmtData[0],UnpData,UnpDataSize);
}
}
else
{
CmtData.Alloc(CmtLength);
Read(&CmtData[0],CmtLength);
if (!OldFormat && CommHead.CommCRC!=(~CRC(0xffffffff,&CmtData[0],CmtLength)&0xffff))
{
Log(FileName,St(MLogCommBrk));
Alarm();
CmtData.Reset();
return(false);
}
}
#endif
#if defined(_WIN_32) && !defined(_WIN_CE)
if (CmtData.Size()>0)
OemToCharBuff((char*)&CmtData[0],(char*)&CmtData[0],CmtData.Size());
#endif
return(CmtData.Size()>0);
}
int Archive::ReadCommentData(Array<byte> &CmtData)
{
bool Unicode=SubHead.SubFlags & SUBHEAD_FLAGS_CMT_UNICODE;
if (!ReadSubData(&CmtData,NULL))
return(0);
int CmtSize=CmtData.Size();
if (Unicode)
{
CmtSize/=2;
Array<wchar> CmtDataW(CmtSize+1);
RawToWide(&CmtData[0],&CmtDataW[0],CmtSize);
CmtDataW[CmtSize]=0;
CmtData.Alloc(CmtSize*2);
WideToChar(&CmtDataW[0],(char *)&CmtData[0]);
CmtSize=strlen((char *)&CmtData[0]);
CmtData.Alloc(CmtSize);
}
return(CmtSize);
}
void Archive::ViewComment()
{
#ifndef GUI
if (Cmd->DisableComment)
return;
Array<byte> CmtBuf;
if (GetComment(CmtBuf))
{
int CmtSize=CmtBuf.Size();
char *ChPtr=(char *)memchr(&CmtBuf[0],0x1A,CmtSize);
if (ChPtr!=NULL)
CmtSize=ChPtr-(char *)&CmtBuf[0];
mprintf("\n");
OutComment((char *)&CmtBuf[0],CmtSize);
}
#endif
}
#ifndef SFX_MODULE
void Archive::ViewFileComment()
{
if (!(NewLhd.Flags & LHD_COMMENT) || Cmd->DisableComment || OldFormat)
return;
#ifndef GUI
mprintf(St(MFileComment));
#endif
const int MaxSize=0x8000;
Array<char> CmtBuf(MaxSize);
SaveFilePos SavePos(*this);
Seek(CurBlockPos+SIZEOF_NEWLHD+NewLhd.NameSize,SEEK_SET);
Int64 SaveCurBlockPos=CurBlockPos;
Int64 SaveNextBlockPos=NextBlockPos;
int Size=ReadHeader();
CurBlockPos=SaveCurBlockPos;
NextBlockPos=SaveNextBlockPos;
if (Size<7 || CommHead.HeadType!=COMM_HEAD)
return;
if (CommHead.HeadCRC!=HeaderCRC)
{
#ifndef GUI
Log(FileName,St(MLogCommHead));
#endif
return;
}
if (CommHead.UnpVer < 15 || CommHead.UnpVer > UNP_VER ||
CommHead.Method > 0x30 || CommHead.UnpSize > MaxSize)
return;
Read(&CmtBuf[0],CommHead.UnpSize);
if (CommHead.CommCRC!=((~CRC(0xffffffff,&CmtBuf[0],CommHead.UnpSize)&0xffff)))
{
Log(FileName,St(MLogBrokFCmt));
}
else
{
OutComment(&CmtBuf[0],CommHead.UnpSize);
#ifndef GUI
mprintf("\n");
#endif
}
}
#endif
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