//recursively descend through resource directory structure
//resource directories are 3 levels deep by Microsoft convention:
//level 1 : resource type
//level 2 : resource name str/id num
//level 3 : language (aka code page)
private void parseResourceDirectory(SourceFile source, int level)
{
//parse IMAGE_RESOURCE_DIRECTORY
uint characteristics = source.getFour(); //unused
uint timeDateStamp = source.getFour();
uint majorVersion = source.getTwo();
uint minorVersion = source.getTwo();
uint numberOfNamedEntries = source.getTwo();
uint numberOfIdEntries = source.getTwo();
int entryCount = (int)(numberOfNamedEntries + numberOfIdEntries);
for (int i = 0; i < entryCount; i++)
{
uint idName = source.getFour(); //either numeric val or a ptr to name str
uint data = source.getFour(); //either ptr to subdir or a leaf node
resIdNameValues[level] = idName; //store id/name val at this level
uint curPos = source.getPos(); //save cur pos in resource directory
uint dataPos = (data & 0x7FFFFFFF);
source.seek(dataPos); //goto leaf/subtree data
if (data < 0x80000000) //high bit not set -> data points to leaf node
{
parseResourceData(source);
}
else
{ //high bit is set -> data points to subtree
parseResourceDirectory(source, level + 1); //recurse next subtree
}
source.seek(curPos); //ret to pos in resource directory
}
}
static public DataDirectory readDataDirectory(SourceFile source)
{
uint rva = source.getFour();
uint size = source.getFour();
return(new DataDirectory(rva, size));
}
//- reading in ----------------------------------------------------------------
public void readCoffHeader(SourceFile source)
{
machine = (int)source.getTwo();
sectionCount = (int)source.getTwo();
timeStamp = source.getFour();
symbolTblAddr = source.getFour();
symbolCount = source.getFour();
optionalHdrSize = (int)source.getTwo();
characteristics = (int)source.getTwo();
}
public void loadStringTable(SourceFile source)
{
uint pos = symbolTblAddr + (symbolCount * 0x12);
source.seek(pos);
uint len = source.getFour() - 4;
byte[] data = source.getRange(len);
String str = "";
int idx = 4;
for (int i = 0; i < len; i++)
{
if (data[i] != 0)
{
str += (char)data[i];
}
else
{
stringTbl.Add(idx, str);
str = "";
idx = i + 5;
}
}
}
static public MsDosHeader readMSDOSHeader(SourceFile source)
{
MsDosHeader dosHeader = new MsDosHeader();
dosHeader.signature = source.getTwo();
if (dosHeader.signature != 0x5a4d)
{
throw new Win32ReadException("this is not a valid win32 executable file");
}
dosHeader.lastsize = source.getTwo();
dosHeader.nblocks = source.getTwo();
dosHeader.nreloc = source.getTwo();
dosHeader.hdrsize = source.getTwo();
dosHeader.minalloc = source.getTwo();
dosHeader.maxalloc = source.getTwo();
dosHeader.ss = source.getTwo();
dosHeader.sp = source.getTwo();
dosHeader.checksum = source.getTwo();
dosHeader.ip = source.getTwo();
dosHeader.cs = source.getTwo();
dosHeader.relocpos = source.getTwo();
dosHeader.noverlay = source.getTwo();
dosHeader.reserved1 = source.getRange(8);
dosHeader.oem_id = source.getTwo();
dosHeader.oem_info = source.getTwo();
dosHeader.reserved2 = source.getRange(20);
dosHeader.e_lfanew = source.getFour();
return(dosHeader);
}
public static ResImageGroupDataEntry parseData(SourceFile src)
{
ResImageGroupDataEntry cgdata = new ResImageGroupDataEntry();
cgdata.bWidth = src.getOne();
cgdata.bHeight = src.getOne();
cgdata.bColorCount = src.getOne();
uint res = src.getOne();
cgdata.wPlanes = src.getTwo();
cgdata.wBitCount = src.getTwo();
cgdata.dwBytesInRes = src.getFour();
cgdata.nID = src.getTwo();
cgdata.image = null;
return(cgdata);
}
//- reading in ----------------------------------------------------------------
public static Section loadSection(SourceFile source)
{
Section section = new Section();
section.secName = source.getAsciiString(8);
section.memsize = source.getFour();
section.memloc = source.getFour();
section.filesize = source.getFour();
section.fileloc = source.getFour();
section.pRelocations = source.getFour();
section.pLinenums = source.getFour();
section.relocCount = (int)source.getTwo();
section.linenumCount = (int)source.getTwo();
section.flags = source.getFour();
section.data = source.getRange(section.fileloc, section.filesize); //load section data
return(section);
}
//- reading in ----------------------------------------------------------------
public void readFile(String _filename)
{
filename = _filename;
SourceFile source = new SourceFile(filename);
dosHeader = MsDosHeader.readMSDOSHeader(source);
source.seek(dosHeader.e_lfanew);
uint pesig = source.getFour();
if (pesig != 0x00004550)
{
throw new Win32ReadException("this is not a valid win32 executable file");
}
readCoffHeader(source);
readOptionalHeader(source);
loadSections(source);
foreach (Section section in sections)
{
section.imageBase = imageBase; //sections in exe/dll have an image base
}
//getResourceTable(source);
}
private void readOptionalHeader(SourceFile source)
{
magicNum = source.getTwo();
majorLinkerVersion = source.getOne();
minorLinkerVersion = source.getOne();
sizeOfCode = source.getFour();
sizeOfInitializedData = source.getFour();
sizeOfUninitializedData = source.getFour();
addressOfEntryPoint = source.getFour();
baseOfCode = source.getFour();
baseOfData = source.getFour();
imageBase = source.getFour();
sectionAlignment = source.getFour();
fileAlignment = source.getFour();
majorOSVersion = source.getTwo();
minorOSVersion = source.getTwo();
majorImageVersion = source.getTwo();
minorImageVersion = source.getTwo();
majorSubsystemVersion = source.getTwo();
minorSubsystemVersion = source.getTwo();
win32VersionValue = source.getFour();
sizeOfImage = source.getFour();
sizeOfHeaders = source.getFour();
checksum = source.getFour();
subsystem = source.getTwo();
dLLCharacteristics = source.getTwo();
sizeOfStackReserve = source.getFour();
sizeOfStackCommit = source.getFour();
sizeOfHeapReserve = source.getFour();
sizeOfHeapCommit = source.getFour();
loaderFlags = source.getFour();
numberOfRvaAndSizes = source.getFour();
dExportTable = DataDirectory.readDataDirectory(source);
dImportTable = DataDirectory.readDataDirectory(source);
dResourceTable = DataDirectory.readDataDirectory(source);
exceptionTable = DataDirectory.readDataDirectory(source);
certificatesTable = DataDirectory.readDataDirectory(source);
baseRelocationTable = DataDirectory.readDataDirectory(source);
debugTable = DataDirectory.readDataDirectory(source);
architecture = DataDirectory.readDataDirectory(source);
globalPtr = DataDirectory.readDataDirectory(source);
threadLocalStorageTable = DataDirectory.readDataDirectory(source);
loadConfigurationTable = DataDirectory.readDataDirectory(source);
boundImportTable = DataDirectory.readDataDirectory(source);
importAddressTable = DataDirectory.readDataDirectory(source);
delayImportDescriptor = DataDirectory.readDataDirectory(source);
CLRRuntimeHeader = DataDirectory.readDataDirectory(source);
reserved = DataDirectory.readDataDirectory(source);
}
//leaf node of resource directory tree, this rec points to actual data
private void parseResourceData(SourceFile source)
{
uint datapos = source.getFour();
uint datasize = source.getFour();
uint codepage = source.getFour();
uint reserved = source.getFour();
datapos -= resourceRVA;
byte[] resdata = source.getRange(datapos, datasize); //get resource data
//get the store type/id/lang vals we stored in our decent to this node
uint restype = resIdNameValues[0];
uint resid = resIdNameValues[1];
String resname = (resid >= 0x80000000) ? getResourceName(source, resid) : null;
uint reslang = resIdNameValues[2];
switch (restype)
{
case 1:
ResData curdata = new ResData(resid, resname, reslang, resdata);
cursorItems.Add(curdata);
break;
case 2:
Bitmap bmp = ResBitmap.parseData(resdata);
addBitmap(resid, resname, reslang, bmp);
getDataItem(bitmaps, resid, resname).getItem(reslang).dataBuf = resdata;
break;
case 3:
ResData icondata = new ResData(resid, resname, reslang, resdata);
iconItems.Add(icondata);
break;
case 4:
addMenu(resid, resname, reslang, resdata);
//List<String> menu = ResMenu.parseData(resdata);
//addMenu(resid, resname, reslang, menu);
getDataItem(menus, resid, resname).getItem(reslang).dataBuf = resdata;
break;
case 5:
addDialog(resid, resname, reslang, resdata);
//List<String> dlg = ResDialog.parseData(resdata);
//addDialog(resid, resname, reslang, dlg);
getDataItem(dialogs, resid, resname).getItem(reslang).dataBuf = resdata;
break;
case 6:
List <String> strings = ResStringTable.parseData(resdata);
addStringTable(resid, resname, reslang, strings);
getDataItem(stringtable, resid, resname).getItem(reslang).dataBuf = resdata;
break;
case 7:
addFontDirectory(resid, resname, reslang, resdata);
getDataItem(fontDirectories, resid, resname).getItem(reslang).dataBuf = resdata;
break;
case 8:
addFont(resid, resname, reslang, resdata);
getDataItem(fonts, resid, resname).getItem(reslang).dataBuf = resdata;
break;
case 9:
List <String> accel = ResAccelerator.parseData(resdata);
addAccelerator(resid, resname, reslang, accel);
getDataItem(accelerators, resid, resname).getItem(reslang).dataBuf = resdata;
break;
case 10:
addUserData(resid, resname, reslang, resdata);
getDataItem(userData, resid, resname).getItem(reslang).dataBuf = resdata;
break;
case 12:
ResImageGroupData cg = ResImageGroupData.parseData(resdata);
addCursorGroup(resid, resname, reslang, cg);
getDataItem(cursorGroups, resid, resname).getItem(reslang).dataBuf = resdata;
break;
case 14:
ResImageGroupData ig = ResImageGroupData.parseData(resdata);
addIconGroup(resid, resname, reslang, ig);
getDataItem(iconGroups, resid, resname).getItem(reslang).dataBuf = resdata;
break;
case 16:
addVersion(resid, resname, reslang, resdata);
//List<String> version = ResVersion.parseData(resdata);
//addVersion(resid, resname, reslang, version);
getDataItem(versions, resid, resname).getItem(reslang).dataBuf = resdata;
break;
default:
addUserData(resid, resname, reslang, resdata);
getDataItem(userData, resid, resname).getItem(reslang).dataBuf = resdata;
break;
}
}
