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Protector.cpp
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/*
Copyright (c) 2009-2013, Ruslan Yushchenko
All rights reserved.
Distributed via 3-clause BSD (aka New BSD) license
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
* Neither the name of the Ruslan Yushchenko nor the
names of its contributors may be used to endorse or promote products
derived from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL RUSLAN YUSHCHENKO BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "stdafx.h"
#include <time.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/utime.h>
#include <stdio.h>
#include <io.h>
#include <fcntl.h>
#include "FileSpace.h"
#include "Protector.h"
#ifdef _INSIDE_MFC_APP
#include "reed.h"
#include "DlgProgress.h"
extern CDlgProgress *g_DlgProgress;
#endif
#define RCV_CUR_VERSION 1
#define RCV_MAX_VERSION 100
#define SEG_SIZE 200
#define HEADER_SIZE 24
//extern "C" int __cdecl _fseeki64(FILE *, __int64, int);
//extern "C" __int64 __cdecl _ftelli64(FILE *);
#define FILE_VERSION 4
int _xoradd(char *sum, const char *add, int len)
{
if (len<=0) return -1;
for (int i=0; i<len; i++)
{
sum[i] ^= add [i];
}
return 0;
}
CProtector::CProtector()
{
m_szRecovery = NULL;
m_npattern = NULL;
m_szRestSum = NULL;
m_nRecoveryBlockSize = BLOCK_SIZE;
m_nRecoverySize = 10485760;
m_nCntBlocks = 0;
m_nCurrentBlock = 0;
m_nCurrentBlockA = 0;
m_nCntRecoverable = 0;
m_nCntNotRecoverable = 0;
m_bReadOnly = false;
m_bCreateRecForRec = false;
m_nTotalSize = 0;
m_szRecFileName = _T("");
fRest = NULL;
m_szRecoverPath = _T("");
m_bCreateSubdirs = true;
m_bAllSrcFilesExist = false;
m_nFilesExistCount = 0;
Init_CRC32_Table();
}
CProtector::~CProtector()
{
if (m_szRecovery!=NULL)
{
delete [] m_szRecovery;
m_szRecovery = NULL;
}
if (m_szRestSum!=NULL)
{
delete [] m_szRestSum;
m_szRestSum = NULL;
}
if (m_npattern!=NULL)
{
delete [] m_npattern;
m_npattern = NULL;
}
if (fRest!=NULL)
{
fclose(fRest);
fRest = NULL;
}
if (m_szTempFile!=_T(""))
{
_tunlink(m_szTempFile);
m_szTempFile=_T("");
}
}
void CProtector::Clear()
{
m_arFiles.RemoveAll();
if (m_szRecovery!=NULL)
{
delete [] m_szRecovery;
m_szRecovery = NULL;
}
_tcscpy(m_szPath, _T(""));
m_blbCRC.SetSize(0);
m_nRecoveryBlockSize = BLOCK_SIZE;
m_nRecoverySize = 10485760;
m_nCntBlocks = 0;
m_nCurrentBlock = 0;
m_nCurrentBlockA = 0;
m_nCntRecoverable = 0;
m_nCntNotRecoverable = 0;
m_bReadOnly = false;
m_nTotalSize = 0;
if (fRest!=NULL)
{
fclose(fRest);
fRest = NULL;
}
if (m_szTempFile!=_T(""))
{
_tunlink(m_szTempFile);
m_szTempFile = _T("");
}
m_szRecFileName = _T("");
}
void CProtector::Init_CRC32_Table()
{
UINT ulPolynomial = 0x04c11db7;
for(int i = 0; i <= 0xFF; i++)
{
crc32_table[i]=Reflect(i, 8) << 24;
for (int j = 0; j < 8; j++)
crc32_table[i] = (crc32_table[i] << 1) ^ (crc32_table[i] & (1 << 31) ? ulPolynomial : 0);
crc32_table[i] = Reflect(crc32_table[i], 32);
}
}
UINT CProtector::Reflect(UINT ref, char ch)
{
UINT value(0);
// Swap bit 0 for bit 7
// bit 1 for bit 6, etc.
for(int i = 1; i < (ch + 1); i++)
{
if(ref & 1)
value |= 1 << (ch - i);
ref >>= 1;
}
return value;
}
UINT CProtector::Get_CRC(void * _szData, int nLength, UINT nCRC=0)
{
const unsigned char *szData = (const unsigned char *) _szData;
UINT ulCRC;//(0xffffffff);
// if (nCRC==0)
// ulCRC = 0xffffffff;
// else
ulCRC = nCRC;
int sum = 0;
while(nLength--)
{
sum+=*szData;
ulCRC = (ulCRC >> 8) ^ crc32_table[(ulCRC & 0xFF) ^ *szData++];
}
int k = sum;
return ulCRC;
}
int CProtector::AddFileInfo(LPCTSTR szFileName)
{
if (_tcslen(szFileName)>MAX_PATH_PROT-1)
return E_PATH_TOO_LONG;
FILESIZE file_size;
struct _stati64 statfile;
if( _tstati64( szFileName, &statfile ) == 0 )
{
file_size = statfile.st_size;
if( file_size == 0 )
return E_ZERO_SIZED_FILE;
}
int nAccess = _taccess(szFileName, 04);
if (nAccess != 0)
return E_FILE_NOT_OPENS;
struct t_FileInfo fi;
// fi.st_ctime = statfile.st_ctime;
fi.st_mtime = statfile.st_mtime;
//fi.order=-1;
_tcscpy(fi.szName, szFileName);
fi.size = file_size;
fi.status=0;
m_arFiles.Add(fi);
m_nTotalSize+=fi.size;
return 0;
}
//int CProtector::GetListOfFiles(LPCTSTR szDirectory)
//{
// return 0;
//}
int CProtector::CreateSolidRecovery2(FILESIZE size, LPCTSTR szFileName)
{
if (size<3*m_nRecoveryBlockSize)
return E_SMALL_SIZE; //Too small size
if (m_arFiles.GetSize()==0)
return E_NO_FILES; //No files!
FILE *f = _tfopen (szFileName, _T("wb"));
if (f==NULL) return E_FILE_CANNOT_WRITE;
//Calc Numblocks
if (size % m_nRecoveryBlockSize == 0)
{
m_nCntBlocks = int(size / m_nRecoveryBlockSize);
m_nRecoverySize = size;
}
else
{
m_nCntBlocks = int(size / m_nRecoveryBlockSize + 1);
m_nRecoverySize = size + m_nRecoveryBlockSize - (size % m_nRecoveryBlockSize);
}
m_nCurrentBlock = 0;
m_nCurrentBlockA = 0;
//Writing Header
unsigned int uCRC = 0;
int version = FILE_VERSION;
int cnt = m_arFiles.GetSize();
char sig[5]="$RCV";
fwrite(sig,1,4,f);
uCRC = Get_CRC(sig, 4, uCRC);
fwrite(&version,sizeof(version),1,f);
uCRC = Get_CRC(&version,sizeof(version), uCRC);
fwrite(&cnt,sizeof(cnt),1,f);
uCRC = Get_CRC(&cnt,sizeof(cnt), uCRC);
fwrite(&m_nRecoverySize,sizeof(m_nRecoverySize),1,f);
uCRC = Get_CRC(&m_nRecoverySize,sizeof(m_nRecoverySize), uCRC);
fwrite(&m_nRecoveryBlockSize,sizeof(m_nRecoveryBlockSize),1,f);
uCRC = Get_CRC(&m_nRecoveryBlockSize,sizeof(m_nRecoveryBlockSize), uCRC);
int nSegSize = SEG_SIZE*1024*1024;
if (nSegSize % m_nRecoveryBlockSize!=0)
{
nSegSize += m_nRecoveryBlockSize - (nSegSize % m_nRecoveryBlockSize);
}
int nSegments = 1;
if (nSegSize > m_nRecoverySize)
nSegSize = int(m_nRecoverySize);
else
{
nSegments = int(m_nRecoverySize / nSegSize);
if (m_nRecoverySize % nSegSize > 0) nSegments++;
}
int segment;
if (m_szRecovery!=NULL) delete [] m_szRecovery;
m_szRecovery = new char [nSegSize];
if (m_szRecovery==NULL)
return E_WRONG_OUT_OF_MEMORY;
char *buf = new char [m_nRecoveryBlockSize];
if (buf==NULL)
{
delete [] m_szRecovery;
m_szRecovery = NULL;
return E_WRONG_OUT_OF_MEMORY;
}
m_blbCRC.SetSize(0);
m_blbCRC.ResetIndex();
// for (int i=0; i<m_arFiles.GetSize(); i++)
// {
// t_FileInfo fi = m_arFiles.GetAt(i);
/// AddFileToRecovery(fi);
/// m_arFiles.SetAt(i, fi);
// }
CFileSpace fs;
fs.SetBlockSize(m_nRecoveryBlockSize);
for (int i=0; i<m_arFiles.GetSize(); i++)
{
t_FileInfo fi = m_arFiles.GetAt(i);
fs.AddFile(fi.szName, fi.size);
}
#ifdef _INSIDE_MFC_APP
FILESIZE pcnt=0;
if (g_DlgProgress!=NULL)
{
g_DlgProgress->m_szOperation=_T("Creating recovery info for");
//g_DlgProgress->m_szFileName=szFileName;
g_DlgProgress->m_cProgress.SetRange(0,100);
g_DlgProgress->PostMessageW(WM_COMMAND, IDC_CUSTOM_UPDATE);
//g_DlgProgress->UpdateData(FALSE);
//g_DlgProgress->RedrawWindow();
}
#endif
FILESIZE data_written=0;
for (segment = 0; segment<nSegments; segment++)
{
memset(m_szRecovery,0, nSegSize*sizeof(char));
int cur_seg_size = nSegSize;
if (segment==nSegments-1)
{
if (m_nRecoverySize % nSegSize >0)
{
cur_seg_size = int(m_nRecoverySize % nSegSize);
}
}
FILESIZE offset=((FILESIZE)segment)*((FILESIZE)nSegSize);
FILESIZE offset2=offset+cur_seg_size;
if (offset2>fs.GetAllSize()) offset2 = fs.GetAllSize();
while (offset<fs.GetAllSize())
{
FILESIZE blockA = offset / m_nRecoveryBlockSize;
fs.SetBlock(blockA, false);
int to_read = int(offset2-offset);
int rec_size = to_read;
int block=0;
while (to_read>0)
{
fs.ReadBlock(buf);
if (block==0)
int kk=1;
_xoradd(m_szRecovery + block*m_nRecoveryBlockSize, buf, m_nRecoveryBlockSize);
UINT crc = Get_CRC(buf, m_nRecoveryBlockSize);
m_blbCRC << crc;
if (to_read>=m_nRecoveryBlockSize)
to_read-=m_nRecoveryBlockSize;
else
return 500;
block++;
#ifdef _INSIDE_MFC_APP
if (pcnt % 1000 == 0 && g_DlgProgress!=NULL)
{
int percent = 0;
if (fs.GetAllSize()>0)
{
percent = int(double(100*pcnt*m_nRecoveryBlockSize)/double(fs.GetAllSize()));
if (percent>100 || percent<0)
percent = 0;
}
CString s;
fs.GetCurrentFile(s);
t_FileInfo fi;
_tcscpy(fi.szName, s);
CutPath(&fi);
if (nSegments>1)
g_DlgProgress->m_szFileName.Format(_T("%s (segment %d/%d)"),fi.szName, segment+1, nSegments);
else
g_DlgProgress->m_szFileName.Format(_T("%s"),fi.szName);
g_DlgProgress->PostMessageW(WM_COMMAND, IDC_CUSTOM_UPDATE);
//g_DlgProgress->UpdateData(FALSE);
g_DlgProgress->m_cProgress.SetPos(percent);
//g_DlgProgress->Invalidate();
//g_DlgProgress->UpdateWindow();
//g_DlgProgress->RedrawWindow();
}
if (g_DlgProgress->m_bNeedPause)
{
while (g_DlgProgress->m_bNeedPause && !g_DlgProgress->m_bNeedTerminate)
Sleep(1000);
}
if (g_DlgProgress->m_bNeedTerminate)
{
if (m_szRecovery!=NULL)
{
delete [] m_szRecovery;
m_szRecovery = NULL;
}
delete [] buf ;
fclose(f);
_tunlink(szFileName);
return E_PROTECTOR_TERMINATED;
}
pcnt++;
#endif
}
offset+=m_nRecoverySize;
offset2=offset+cur_seg_size;
if (offset2>fs.GetAllSize()) offset2 = fs.GetAllSize();
}
if (data_written+nSegSize<=m_nRecoverySize)
{
fwrite(m_szRecovery, 1, nSegSize, f);
uCRC = Get_CRC(m_szRecovery, nSegSize, uCRC);
data_written+=nSegSize;
}
else
{
if (m_nRecoverySize>data_written)
{
FILESIZE to_write = m_nRecoverySize - data_written;
if (to_write>0)
{
fwrite(m_szRecovery, 1, (size_t)(to_write), f);
uCRC = Get_CRC(m_szRecovery, (size_t)(to_write), uCRC);
data_written=m_nRecoverySize;
}
}
}
}
if (m_szRecovery!=NULL)
{
delete [] m_szRecovery;
m_szRecovery = NULL;
}
delete [] buf ;
//Writing Footer
unsigned long siz2 = m_blbCRC.GetSize();
fwrite(&siz2,sizeof(siz2),1,f);
uCRC = Get_CRC(&siz2,sizeof(siz2), uCRC);
int ll = _tcslen(m_szPath)+1;
fwrite(&ll, sizeof(ll),1,f);
uCRC = Get_CRC(&ll, sizeof(ll), uCRC);
fwrite(m_szPath, sizeof(TCHAR),ll,f);
uCRC = Get_CRC(m_szPath, sizeof(TCHAR)*ll, uCRC);
bool bHasPath = true;
if (_tcscmp(m_szPath,_T(""))==0)
bHasPath = false;
int i;
for (i=0; i<m_arFiles.GetSize(); i++)
{
t_FileInfo fi = m_arFiles.GetAt(i);
if (bHasPath)
CutBasePath(&fi);
else
CutPath(&fi);
fwrite(&fi.size, sizeof(fi.size),1,f);
uCRC = Get_CRC(&fi.size, sizeof(fi.size), uCRC);
int len = _tcslen(fi.szName)+1;
fwrite(&len, sizeof(len),1,f);
uCRC = Get_CRC(&len, sizeof(len), uCRC);
fwrite(fi.szName, sizeof(TCHAR),len,f);
uCRC = Get_CRC(fi.szName, sizeof(TCHAR)*len, uCRC);
// fwrite(&fi.st_ctime, sizeof(fi.st_ctime),1,f);
// uCRC = Get_CRC(&fi.st_ctime, sizeof(fi.st_ctime), uCRC);
fwrite(&fi.st_mtime, sizeof(fi.st_mtime),1,f);
uCRC = Get_CRC(&fi.st_mtime, sizeof(fi.st_mtime), uCRC);
// fwrite(&fi.nCrc, sizeof(fi.nCrc),1,f);
// uCRC = Get_CRC(&fi.nCrc, sizeof(fi.nCrc), uCRC);
}
fwrite(m_blbCRC.GetBuffer(), 1, siz2, f);
uCRC = Get_CRC(m_blbCRC.GetBuffer(), siz2, uCRC);
fwrite(&uCRC, sizeof(uCRC), 1, f);
fclose(f);
return 0;
}
void CProtector::CutPath(t_FileInfo *fi)
{
if (fi==NULL)
return;
int rt = 0;
int i;
for (i=_tcslen(fi->szName)-1; i>0; i--)
{
if (fi->szName[i]=='\\')
{
rt=i;
break;
}
}
if (rt>0)
{
for (i=rt+1; i<=(int)_tcslen(fi->szName); i++)
{
fi->szName[i-rt-1] = fi->szName[i];
}
}
}
void CProtector::CutBasePath(t_FileInfo *fi)
{
if (fi==NULL)
return;
int rt = _tcslen(m_szPath);
if (rt>0)
{
int i;
for (i=rt; i<=(int)_tcslen(fi->szName); i++)
{
fi->szName[i-rt] = fi->szName[i];
}
}
}
int CProtector::LoadRecovery2(LPCTSTR szFileName)
{
FILESIZE file_size;
struct _stati64 statfile;
if( _tstati64( szFileName, &statfile ) == 0 )
{
file_size = statfile.st_size;
if( file_size == 0 )
return E_EMPTY_RECOVERY_FILE;
}
FILE *f = _tfopen (szFileName, _T("rb"));
if (f==NULL) return E_FILE_NOT_OPENS;
CString szFN2 = szFileName;
int pos = szFN2.ReverseFind('\\');
CString szXPath=".\\";
if (pos>0)
{
szXPath = szFN2.Left(pos+1);
SetCurrentDirectory(szXPath);
}
char *buf1 = new char [1000];
char *buf2 = new char [1000];
int b2e = 0;
UINT nCRC_a = 0;
UINT nCRC_f = 0;
#ifdef _INSIDE_MFC_APP
FILESIZE pcnt=0;
if (g_DlgProgress!=NULL)
{
g_DlgProgress->m_szOperation=_T("Checking integrity of the recovery file");
g_DlgProgress->m_szFileName=szFileName;
g_DlgProgress->m_cProgress.SetRange(0,100);
g_DlgProgress->PostMessageW(WM_COMMAND, IDC_CUSTOM_UPDATE);
//g_DlgProgress->UpdateData(FALSE);
//g_DlgProgress->RedrawWindow();
}
#endif
while (!feof(f))
{
int size = fread(buf1, sizeof(char), 1000, f);
if (size<1000)
{
if (size<sizeof(UINT))
{
if (b2e==0) return E_FORMAT_ERROR;
nCRC_a = Get_CRC(buf2, 1000-(sizeof(UINT)-size), nCRC_a);
memcpy(&nCRC_f, buf2+1000-(sizeof(UINT)-size), sizeof(UINT)-size);
memcpy(((char *)&nCRC_f)+(sizeof(UINT)-size), buf1, size);
break;
}
else
{
if (b2e)
nCRC_a = Get_CRC(buf2, 1000, nCRC_a);
nCRC_a = Get_CRC(buf1, size-sizeof(UINT), nCRC_a);
memcpy(&nCRC_f, buf1+size-sizeof(UINT), sizeof(UINT));
break;
}
}
if (b2e)
nCRC_a = Get_CRC(buf2, 1000, nCRC_a);
memcpy(buf2,buf1, size);
b2e=1;
#ifdef _INSIDE_MFC_APP
if (pcnt % 1000 == 0 && g_DlgProgress!=NULL)
{
int percent = 0;
if (file_size>0)
{
percent = int(double(100*pcnt*1000)/double(file_size));
if (percent>100 || percent<0)
percent = 0;
}
g_DlgProgress->m_cProgress.SetPos(percent);
//g_DlgProgress->Invalidate();
//g_DlgProgress->UpdateWindow();
//g_DlgProgress->RedrawWindow();
}
if (g_DlgProgress->m_bNeedPause)
{
while (g_DlgProgress->m_bNeedPause && !g_DlgProgress->m_bNeedTerminate)
Sleep(1000);
}
if (g_DlgProgress->m_bNeedTerminate)
{
if (buf1!=NULL)
delete [] buf1;
if (buf2!=NULL)
delete [] buf2;
fclose(f);
Clear();
return E_PROTECTOR_TERMINATED;
}
pcnt++;
#endif
}
delete [] buf2;
delete [] buf1;
fclose(f);
if (nCRC_a!=nCRC_f) return E_CRC_ERROR;
//Clearing
Clear();
//Loading
f = _tfopen (szFileName, _T("rb"));
if (f==NULL) return E_FILE_NOT_OPENS;
int version = FILE_VERSION;
int cnt = 0;
char sig[5]="$RCV";
char sig2[5];
unsigned long siz2 = 0;
fread(sig2,1,4,f);
fread(&version,sizeof(version),1,f);
if (version > FILE_VERSION)
return E_VERSION_OLD;
fread(&cnt,sizeof(cnt),1,f);
if (cnt<=0) return E_FORMAT_ERROR;
fread(&m_nRecoverySize,sizeof(m_nRecoverySize),1,f);
if (m_nRecoverySize<=0) return E_FORMAT_ERROR;
fread(&m_nRecoveryBlockSize,sizeof(m_nRecoveryBlockSize),1,f);
if (m_nRecoveryBlockSize<=0) return E_FORMAT_ERROR;
FILESIZE xx = _ftelli64(f);
if (_fseeki64(f, m_nRecoverySize, SEEK_CUR)!=0)
return E_FILE_CANNOT_READ;
fread(&siz2,sizeof(siz2),1,f);
if (siz2<=0) return E_FORMAT_ERROR;
int ll;
fread(&ll, sizeof(ll),1,f);
fread(m_szPath, sizeof(TCHAR),ll,f);
m_nCntBlocks = int(m_nRecoverySize/m_nRecoveryBlockSize);
//Create buffers
// if (m_szRecovery!=NULL)
// delete [] m_szRecovery;
// m_szRecovery = new char [m_nRecoverySize];
// memset(m_szRecovery,0, m_nRecoverySize*sizeof(char));
m_blbCRC.SetSize(siz2+1);
m_blbCRC.ResetIndex();
#ifdef _INSIDE_MFC_APP
pcnt = 0;
if (g_DlgProgress!=NULL)
{
g_DlgProgress->m_szOperation=_T("Loading the list of files");
g_DlgProgress->m_szFileName=szFileName;
g_DlgProgress->m_cProgress.SetRange(0,100);
g_DlgProgress->PostMessageW(WM_COMMAND, IDC_CUSTOM_UPDATE);
}
#endif
int i;
for (i=0; i<cnt; i++)
{
t_FileInfo fi;
int len;
CString s2,s3;
fread(&fi.size, sizeof(fi.size),1,f);
fread(&len, sizeof(len),1,f);
if (len<=0) return E_FORMAT_ERROR;
fread(fi.szName, sizeof(TCHAR),len,f);
fread(&fi.st_mtime, sizeof(fi.st_mtime),1,f);
m_nTotalSize+=fi.size;
fi.status=6;
/*FILE *ft = _tfopen(fi.szName,_T("rb"));
int k = errno;
if (ft==NULL)
{
fi.status=3;
}
else
{
fclose(ft);
FILESIZE file_size;
struct _stati64 statfile;
if( _tstati64( fi.szName, &statfile ) == 0 )
{
file_size = statfile.st_size;
if( file_size!=fi.size)
fi.status=5;
}
else
fi.status=4;
}*/
m_arFiles.Add(fi);
#ifdef _INSIDE_MFC_APP
if (pcnt % 100 == 0 && g_DlgProgress!=NULL)
{
int percent = 0;
if (file_size>0)
{
percent = int(double(100*pcnt)/double(cnt));
if (percent>100 || percent<0)
percent = 0;
}
g_DlgProgress->m_cProgress.SetPos(percent);
}
if (g_DlgProgress->m_bNeedPause)
{
while (g_DlgProgress->m_bNeedPause && !g_DlgProgress->m_bNeedTerminate)
Sleep(1000);
}
if (g_DlgProgress->m_bNeedTerminate)
{
fclose(f);
Clear();
return E_PROTECTOR_TERMINATED;
}
pcnt++;
#endif
}
fread(m_blbCRC.GetBuffer(), 1, siz2, f);
fclose(f);
m_szRecFileName = szFileName;
m_bReadOnly = true;
CheckFilesExists();
return 0;
}
int CProtector::CheckFilesExists()
{
m_bAllSrcFilesExist = true;
m_nFilesExistCount = 0;
#ifdef _INSIDE_MFC_APP
FILESIZE pcnt = 0;
if (g_DlgProgress!=NULL)
{
g_DlgProgress->m_szOperation=_T("Checking file sizes");
g_DlgProgress->m_szFileName = _T("...");
g_DlgProgress->m_cProgress.SetRange(0,100);
g_DlgProgress->PostMessageW(WM_COMMAND, IDC_CUSTOM_UPDATE);
}
#endif
CString szPath = m_szPath;
if (szPath.GetLength()>1 && szPath.Right(1)!=_T("\\"))
szPath += _T("\\");
CString szFileName;
int i;
for (i=0; i<m_arFiles.GetSize(); i++)
{
t_FileInfo fi;
CString s2,s3;
fi = m_arFiles[i];
fi.status=6;
szFileName = szPath + fi.szName;
if (_taccess(szFileName, 04))
{
fi.status=3;
m_bAllSrcFilesExist = false;
}
else
{
m_nFilesExistCount++;
FILESIZE file_size;
struct _stati64 statfile;
if( _tstati64( szFileName, &statfile ) == 0 )
{
file_size = statfile.st_size;
if( file_size!=fi.size)
fi.status=5;
}
else
fi.status=4;
}
m_arFiles.SetAt(i, fi);
#ifdef _INSIDE_MFC_APP
if (pcnt % 100 == 0 && g_DlgProgress!=NULL)
{
int percent = 0;
percent = int(double(100*pcnt)/double(m_arFiles.GetSize()));
if (percent>100 || percent<0)
percent = 0;
g_DlgProgress->m_cProgress.SetPos(percent);
}
if (g_DlgProgress->m_bNeedPause)
{
while (g_DlgProgress->m_bNeedPause && !g_DlgProgress->m_bNeedTerminate)
Sleep(1000);
}
if (g_DlgProgress->m_bNeedTerminate)
{
Clear();
return E_PROTECTOR_TERMINATED;
}
pcnt++;
#endif
}
return 0;
}
/*
int CProtector::Check()
{
if (m_npattern!=NULL)
delete [] m_npattern;
if (m_szRestSum!=NULL)
delete [] m_szRestSum;
m_szRestSum = new char [m_nRecoverySize];
if (m_szRestSum==NULL)
return -2;
memset(m_szRestSum, 0, m_nRecoverySize);
m_nCurrentBlock = 0;
m_nCurrentBlockA = 0;
m_blbCRC.ResetIndex();
m_npattern = new t_pattern[m_nCntBlocks];
if (m_npattern==NULL)
return -2;
memset(m_npattern, 0, sizeof(t_pattern)*m_nCntBlocks);
int i;
for (i=0; i<m_arFiles.GetSize(); i++)
{
t_FileInfo fi = m_arFiles.GetAt(i);
CheckFile(fi);
m_arFiles.SetAt(i,fi);
}
bool bOk=true;
m_nCntRecoverable=0;
m_nCntNotRecoverable=0;
for (i=0; i<m_nCntBlocks; i++)
{
if (m_npattern[i].size!=0)
{
bOk = false;
if (m_npattern[i].size>0)
m_nCntRecoverable++;
else
m_nCntNotRecoverable++;
}
}
if (bOk)
return 0;
else
return -1;
}
*/
int CProtector::GetTmpFileName(CString &szFileName)
{
FILE * f;
CString szTmpPath;
GetTempPath(MAX_PATH_PROT, szTmpPath.GetBuffer(MAX_PATH_PROT + 1));
szTmpPath.ReleaseBuffer();
if (szTmpPath == _T(""))
{
szFileName.Format(_T("%s.tmp"), m_szRecFileName);
f = _tfopen(szFileName, _T("w"));
if (f == NULL)
return -1;
} else
{
if (szTmpPath.Right(1) != '\\') szTmpPath += "\\";
CString fileName = GetFileName(m_szRecFileName);
szFileName.Format(_T("%s%s.tmp"), szTmpPath, fileName);
if ((f = _tfopen(szFileName, _T("w"))) == NULL)
return -1;
}
fclose(f);
_tunlink(szFileName);
return 0;
}
CString CProtector::GetFileName(const CString &szFullPathName)
{
int idx = szFullPathName.ReverseFind('\\');
if (idx < 0)
return szFullPathName;
else
{
return szFullPathName.Right(szFullPathName.GetLength() - idx - 1);
}
}
int CProtector::Check2()
{
if (m_arFiles.GetSize()==0)
return E_NO_FILES;
if (m_szRecFileName=="")
return E_WRONG_OPERATION;
if (m_npattern!=NULL)
{
delete [] m_npattern;
m_npattern = NULL;
}
if (m_szRestSum!=NULL)
{
delete [] m_szRestSum;
m_szRestSum = NULL;
}
int nSegSize = SEG_SIZE*1024*1024;
if (nSegSize % m_nRecoveryBlockSize!=0)
{
nSegSize += m_nRecoveryBlockSize - (nSegSize % m_nRecoveryBlockSize);
}
int nSegments = 1;
if (nSegSize > m_nRecoverySize)
nSegSize = int(m_nRecoverySize);
else
{
nSegments = int(m_nRecoverySize / nSegSize);
if (m_nRecoverySize % nSegSize > 0) nSegments++;
}
int nBlocksPerSeg = nSegSize / m_nRecoveryBlockSize;
if (m_szTempFile==_T(""))
{
int rc = GetTmpFileName(m_szTempFile);
if (rc!=0) return E_TMP_FILENAME;