Dump2Picture v1.1 source code
Sponsored link: Memory Dump Analysis Services
Debugging Experts Magazine Online
Since the first release of Dump2Picture I was under pressure to publish its source code and today I released it under GPL. I have to apologize that it doesn’t always use secure string manipulation functions, error handling is copy/pasted several times and there are no comments. I promise better code in the next version. 
If you plan to make changes and improvements please let me know so I could enjoy your versions of memory visuals too. I used ancient Visual C++ 6.0 to compile and build the project.
// Dump2Picture version 1.1 (c) Dmitry Vostokov
// GNU GENERAL PUBLIC LICENSE
// http://www.gnu.org/licenses/gpl-3.0.txt
#include <math.h>
#include <iostream>
#include <process.h>
#include <windows.h>
BITMAPFILEHEADER bmfh = { 'MB', 0, 0, 0,
sizeof(BITMAPFILEHEADER) + sizeof(BITMAPINFOHEADER) };
BITMAPINFOHEADER bmih = { sizeof(BITMAPINFOHEADER), 0, 0, 1, 32,
0, 0, 0, 0, 0, 0 };
RGBQUAD rgb[256];
void DisplayError (LPCSTR szPrefix)
{
LPSTR errMsg;
CHAR szMsg[256];
strncpy(szMsg, szPrefix, 128);
DWORD gle = GetLastError();
if (gle && FormatMessage(
FORMAT_MESSAGE_ALLOCATE_BUFFER|FORMAT_MESSAGE_FROM_SYSTEM,
NULL, gle, 0, (LPSTR)&errMsg, 0, NULL))
{
strcat(szMsg, ": ");
strncat(szMsg, errMsg, 120);
}
std::cout << szMsg << std::endl;
LocalFree(errMsg);
}
int main(int argc, char* argv[])
{
std::cout << std::endl << "Dump2Picture version 1.1"
<< std::endl << "Written by Dmitry Vostokov, 2007"
<< std::endl << std::endl;
if (argc < 3)
{
std::cout << "Usage: Dump2Picture dumpfile bmpfile [8|16|24|32]" << std::endl;
return -1;
}
HANDLE hFile = CreateFile(argv[1], GENERIC_READ,
FILE_SHARE_READ, NULL, OPEN_EXISTING,
FILE_ATTRIBUTE_NORMAL, NULL);
if (hFile == INVALID_HANDLE_VALUE)
{
DisplayError("Cannot read dump file");
return -1;
}
DWORD dwDumpSizeHigh = 0;
DWORD dwDumpSizeLow = GetFileSize(hFile, &dwDumpSizeHigh);
CloseHandle(hFile);
if (dwDumpSizeHigh)
{
std::cout << "The dump file must be less than 4Gb"
<< std::endl;
return -1;
}
if (argc == 4)
{
if (!strcmp(argv[argc-1],"8"))
{
bmih.biBitCount = 8;
for (int i = 0; i < 256; ++i)
{
rgb[i].rgbBlue = rgb[i].rgbGreen = rgb[i].rgbRed = i;
rgb[i].rgbReserved = 0;
}
}
else if (!strcmp(argv[argc-1],"16"))
{
bmih.biBitCount = 16;
}
else if (!strcmp(argv[argc-1],"24"))
{
bmih.biBitCount = 24;
}
else
{
bmih.biBitCount = 32;
}
}
bmih.biWidth = bmih.biHeight = sqrt((double)(dwDumpSizeLow/
(bmih.biBitCount/8)));
bmih.biWidth -= bmih.biWidth%2;
if (bmih.biBitCount == 8 )
{
bmih.biWidth -= bmih.biWidth%8;
}
bmih.biHeight -= bmih.biHeight%2;
bmih.biSizeImage = bmih.biWidth*bmih.biHeight*
(bmih.biBitCount/8);
if (bmih.biBitCount == 8 )
{
bmfh.bfOffBits += sizeof(rgb);
}
bmfh.bfSize = bmfh.bfOffBits + bmih.biSizeImage;
hFile = CreateFile(argv[2], GENERIC_WRITE, 0, NULL,
CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
if (hFile == INVALID_HANDLE_VALUE)
{
DisplayError("Cannot create bitmap header file");
return -1;
}
DWORD dwWritten;
if (!WriteFile(hFile, &bmfh, sizeof(bmfh), &dwWritten, NULL))
{
DisplayError("Cannot write bitmap header file");
CloseHandle(hFile);
return -1;
}
if (!WriteFile(hFile, &bmih, sizeof(bmih), &dwWritten, NULL))
{
DisplayError("Cannot write bitmap header file");
CloseHandle(hFile);
return -1;
}
if (bmih.biBitCount == 8 )
{
if (!WriteFile(hFile, &rgb, sizeof(rgb), &dwWritten, NULL))
{
DisplayError("Cannot write bitmap header file");
CloseHandle(hFile);
return -1;
}
}
CloseHandle(hFile);
std::string str = "copy \"";
str += argv[2];
str += "\" /B + \"";
str += argv[1];
str += "\" /B \"";
str += argv[2];
str += "\" /B";
system(str.c_str());
return 0;
}
- Dmitry Vostokov @ DumpAnalysis.org -
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