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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
//
// Win32 Resource extractor
//
#include "ildasmpch.h"
#ifndef FEATURE_PAL
#include "debugmacros.h"
#include "corpriv.h"
#include "dasmenum.hpp"
#include "dasmgui.h"
#include "formattype.h"
#include "dis.h"
#include "resource.h"
#include "ilformatter.h"
#include "outstring.h"
#include "ceeload.h"
#include "dynamicarray.h"
extern IMAGE_COR20_HEADER * g_CORHeader;
extern IMDInternalImport* g_pImport;
extern PELoader * g_pPELoader;
extern IMetaDataImport2* g_pPubImport;
extern char g_szAsmCodeIndent[];
extern unsigned g_uConsoleCP;
struct ResourceHeader
{
DWORD dwDataSize;
DWORD dwHeaderSize;
DWORD dwTypeID;
DWORD dwNameID;
DWORD dwDataVersion;
WORD wMemFlags;
WORD wLangID;
DWORD dwVersion;
DWORD dwCharacteristics;
ResourceHeader()
{
memset(this,0,sizeof(ResourceHeader));
dwHeaderSize = sizeof(ResourceHeader);
dwTypeID = dwNameID = 0xFFFF;
};
};
struct ResourceNode
{
ResourceHeader ResHdr;
IMAGE_RESOURCE_DATA_ENTRY DataEntry;
WCHAR* wzType;
WCHAR* wzName;
ResourceNode(DWORD tid, DWORD nid, DWORD lid, DWORD dataOffset, BYTE* ptrBase)
{
if(tid & 0x80000000)
{
ResHdr.dwTypeID = 0;
tid &= 0x7FFFFFFF;
WORD L = *((WORD*)(ptrBase+tid));
wzType = new WCHAR[L+1];
memcpy(wzType,ptrBase+tid+sizeof(WORD),L*sizeof(WCHAR));
wzType[L]=0;
}
else
{
ResHdr.dwTypeID = (0xFFFF |((tid & 0xFFFF)<<16));
wzType = NULL;
}
if(nid & 0x80000000)
{
ResHdr.dwNameID = 0;
nid &= 0x7FFFFFFF;
WORD L = *((WORD*)(ptrBase+nid));
wzName = new WCHAR[L+1];
memcpy(wzName, ptrBase+nid+sizeof(WORD), L*sizeof(WCHAR));
wzName[L]=0;
}
else
{
ResHdr.dwNameID = (0xFFFF |((nid & 0xFFFF)<<16));
wzName = NULL;
}
//ResHdr.dwTypeID = (tid & 0x80000000) ? tid : (0xFFFF |((tid & 0xFFFF)<<16));
//ResHdr.dwNameID = (nid & 0x80000000) ? nid : (0xFFFF |((nid & 0xFFFF)<<16));
ResHdr.wLangID = (WORD)lid;
if(ptrBase) memcpy(&DataEntry,(ptrBase+dataOffset),sizeof(IMAGE_RESOURCE_DATA_ENTRY));
ResHdr.dwDataSize = DataEntry.Size;
};
~ResourceNode()
{
if(wzType) VDELETE(wzType);
if(wzName) VDELETE(wzName);
};
void Save(FILE* pF)
{
// Dump them to pF
BYTE* pbData;
DWORD dwFiller = 0;
BYTE bNil[3] = {0,0,0};
// For each resource write header and data
if(g_pPELoader->getVAforRVA(VAL32(DataEntry.OffsetToData), (void **) &pbData))
{
//fwrite(&(g_prResNodePtr[i]->ResHdr),g_prResNodePtr[i]->ResHdr.dwHeaderSize,1,pF);
ResHdr.dwHeaderSize = sizeof(ResourceHeader);
if(wzType) ResHdr.dwHeaderSize += (DWORD)((wcslen(wzType) + 1)*sizeof(WCHAR) - sizeof(DWORD));
if(wzName) ResHdr.dwHeaderSize += (DWORD)((wcslen(wzName) + 1)*sizeof(WCHAR) - sizeof(DWORD));
//---- Constant part of the header: DWORD,DWORD
fwrite(&ResHdr.dwDataSize, sizeof(DWORD),1,pF);
fwrite(&ResHdr.dwHeaderSize, sizeof(DWORD),1,pF);
//--- Variable part of header: type and name
if(wzType)
{
fwrite(wzType,(wcslen(wzType) + 1)*sizeof(WCHAR), 1, pF);
dwFiller += (DWORD)wcslen(wzType) + 1;
}
else
fwrite(&ResHdr.dwTypeID,sizeof(DWORD),1,pF);
if(wzName)
{
fwrite(wzName,(wcslen(wzName) + 1)*sizeof(WCHAR), 1, pF);
dwFiller += (DWORD)wcslen(wzName) + 1;
}
else
fwrite(&ResHdr.dwNameID,sizeof(DWORD),1,pF);
// Align remaining fields on DWORD
if(dwFiller & 1)
fwrite(bNil,2,1,pF);
//---- Constant part of the header: DWORD,WORD,WORD,DWORD,DWORD
fwrite(&ResHdr.dwDataVersion,8*sizeof(WORD),1,pF);
//---- Header done, now data
fwrite(pbData,VAL32(DataEntry.Size),1,pF);
dwFiller = VAL32(DataEntry.Size) & 3;
if(dwFiller)
{
dwFiller = 4 - dwFiller;
fwrite(bNil,dwFiller,1,pF);
}
}
};
};
#define RES_FILE_DUMP_ENABLED
DWORD DumpResourceToFile(__in __nullterminated WCHAR* wzFileName)
{
BYTE* pbResBase;
FILE* pF = NULL;
DWORD ret = 0;
DWORD dwResDirRVA;
DWORD dwResDirSize;
unsigned ulNumResNodes=0;
DynamicArray<ResourceNode*> g_prResNodePtr;
if (g_pPELoader->IsPE32())
{
IMAGE_OPTIONAL_HEADER32 *pOptHeader = &(g_pPELoader->ntHeaders32()->OptionalHeader);
dwResDirRVA = VAL32(pOptHeader->DataDirectory[IMAGE_DIRECTORY_ENTRY_RESOURCE].VirtualAddress);
dwResDirSize = VAL32(pOptHeader->DataDirectory[IMAGE_DIRECTORY_ENTRY_RESOURCE].Size);
}
else
{
IMAGE_OPTIONAL_HEADER64 *pOptHeader = &(g_pPELoader->ntHeaders64()->OptionalHeader);
dwResDirRVA = VAL32(pOptHeader->DataDirectory[IMAGE_DIRECTORY_ENTRY_RESOURCE].VirtualAddress);
dwResDirSize = VAL32(pOptHeader->DataDirectory[IMAGE_DIRECTORY_ENTRY_RESOURCE].Size);
}
if(dwResDirRVA && dwResDirSize)
{
if(g_pPELoader->getVAforRVA(dwResDirRVA, (void **) &pbResBase))
{
// First, pull out all resource nodes (tree leaves), see ResourceNode struct
PIMAGE_RESOURCE_DIRECTORY pirdType = (PIMAGE_RESOURCE_DIRECTORY)pbResBase;
PIMAGE_RESOURCE_DIRECTORY_ENTRY pirdeType = (PIMAGE_RESOURCE_DIRECTORY_ENTRY)(pbResBase+sizeof(IMAGE_RESOURCE_DIRECTORY));
DWORD dwTypeID;
unsigned short i = 0,N = pirdType->NumberOfNamedEntries+pirdType->NumberOfIdEntries;
PAL_CPP_TRY {
for(i=0; i < N; i++, pirdeType++)
{
dwTypeID = VAL32(IMAGE_RDE_NAME(pirdeType));
if(IMAGE_RDE_OFFSET_FIELD(pirdeType, DataIsDirectory))
{
BYTE* pbNameBase = pbResBase + VAL32(IMAGE_RDE_OFFSET_FIELD(pirdeType, OffsetToDirectory));
PIMAGE_RESOURCE_DIRECTORY pirdName = (PIMAGE_RESOURCE_DIRECTORY)pbNameBase;
PIMAGE_RESOURCE_DIRECTORY_ENTRY pirdeName = (PIMAGE_RESOURCE_DIRECTORY_ENTRY)(pbNameBase+sizeof(IMAGE_RESOURCE_DIRECTORY));
DWORD dwNameID;
unsigned short i,N = VAL16(pirdName->NumberOfNamedEntries)+VAL16(pirdName->NumberOfIdEntries);
for(i=0; i < N; i++, pirdeName++)
{
dwNameID = VAL32(IMAGE_RDE_NAME(pirdeName));
if(IMAGE_RDE_OFFSET_FIELD(pirdeName, DataIsDirectory))
{
BYTE* pbLangBase = pbResBase + VAL32(IMAGE_RDE_OFFSET_FIELD(pirdeName, OffsetToDirectory));
PIMAGE_RESOURCE_DIRECTORY pirdLang = (PIMAGE_RESOURCE_DIRECTORY)pbLangBase;
PIMAGE_RESOURCE_DIRECTORY_ENTRY pirdeLang = (PIMAGE_RESOURCE_DIRECTORY_ENTRY)(pbLangBase+sizeof(IMAGE_RESOURCE_DIRECTORY));
DWORD dwLangID;
unsigned short i,N = VAL16(pirdLang->NumberOfNamedEntries)+VAL16(pirdLang->NumberOfIdEntries);
for(i=0; i < N; i++, pirdeLang++)
{
dwLangID = VAL32(IMAGE_RDE_NAME(pirdeLang));
if(IMAGE_RDE_OFFSET_FIELD(pirdeLang, DataIsDirectory))
{
_ASSERTE(!"Resource hierarchy exceeds three levels");
}
else
{
g_prResNodePtr[ulNumResNodes++] = new ResourceNode(dwTypeID,dwNameID,dwLangID, VAL32(IMAGE_RDE_OFFSET(pirdeLang)),pbResBase);
}
}
}
else
{
g_prResNodePtr[ulNumResNodes++] = new ResourceNode(dwTypeID,dwNameID,0,VAL32(IMAGE_RDE_OFFSET(pirdeName)),pbResBase);
}
}
}
else
{
g_prResNodePtr[ulNumResNodes++] = new ResourceNode(dwTypeID,0,0,VAL32(IMAGE_RDE_OFFSET(pirdeType)),pbResBase);
}
}
} PAL_CPP_CATCH_ALL {
ret= 0xDFFFFFFF;
ulNumResNodes = 0;
}
PAL_CPP_ENDTRY
// OK, all tree leaves are in ResourceNode structs, and ulNumResNodes ptrs are in g_prResNodePtr
if(ulNumResNodes)
{
ret = 1;
#ifdef RES_FILE_DUMP_ENABLED
_wfopen_s(&pF,wzFileName,L"wb");
if(pF)
{
// Dump them to pF
// Write dummy header
ResourceHeader *pRH = new ResourceHeader();
fwrite(pRH,sizeof(ResourceHeader),1,pF);
SDELETE(pRH);
// For each resource write header and data
PAL_CPP_TRY {
for(i=0; i < ulNumResNodes; i++)
{
/*
sprintf_s(szString,SZSTRING_SIZE,"// Res.# %d Type=0x%X Name=0x%X Lang=0x%X DataOffset=0x%X DataLength=%d",
i+1,
g_prResNodePtr[i]->ResHdr.dwTypeID,
g_prResNodePtr[i]->ResHdr.dwNameID,
g_prResNodePtr[i]->ResHdr.wLangID,
VAL32(g_prResNodePtr[i]->DataEntry.OffsetToData),
VAL32(g_prResNodePtr[i]->DataEntry.Size));
printLine(NULL,szString);
*/
g_prResNodePtr[i]->Save(pF);
SDELETE(g_prResNodePtr[i]);
}
}
PAL_CPP_CATCH_ALL {
ret= 0xDFFFFFFF;
}
PAL_CPP_ENDTRY
fclose(pF);
}// end if file opened
else ret = 0xEFFFFFFF;
#else
// Dump to text, using wzFileName as GUICookie
//char szString[4096];
void* GUICookie = (void*)wzFileName;
BYTE* pbData;
printLine(GUICookie,"");
sprintf_s(szString, _countof(szString), "// ========== Win32 Resource Entries (%d) ========",ulNumResNodes);
for(i=0; i < ulNumResNodes; i++)
{
printLine(GUICookie,"");
sprintf_s(szString, _countof(szString), "// Res.# %d Type=0x%X Name=0x%X Lang=0x%X DataOffset=0x%X DataLength=%d",
i+1,
g_prResNodePtr[i]->ResHdr.dwTypeID,
g_prResNodePtr[i]->ResHdr.dwNameID,
g_prResNodePtr[i]->ResHdr.wLangID,
VAL32(g_prResNodePtr[i]->DataEntry.OffsetToData),
VAL32(g_prResNodePtr[i]->DataEntry.Size));
printLine(GUICookie,szString);
if(g_pPELoader->getVAforRVA(VAL32(g_prResNodePtr[i]->DataEntry.OffsetToData), (void **) &pbData))
{
strcat(g_szAsmCodeIndent,"// ");
strcpy(szString,g_szAsmCodeIndent);
DumpByteArray(szString,pbData,VAL32(g_prResNodePtr[i]->DataEntry.Size),GUICookie);
printLine(GUICookie,szString);
g_szAsmCodeIndent[strlen(g_szAsmCodeIndent)-4] = 0;
}
SDELETE(g_prResNodePtr[i]);
}
ret = 1;
#endif
} // end if there are nodes
}// end if got ptr to resource
else ret = 0xFFFFFFFF;
} // end if there is resource
else ret = 0;
return ret;
}
#endif // FEATURE_PAL
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