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read_asm.c
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read_asm.c
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#include "stdafx.h"
#include "read_asm.h"
extern OPTIONS options;
#ifdef _WIN64
#define HEXPTR_PADDED _T("%016I64X")
#else // _WIN64
#define HEXPTR_PADDED _T("%08X")
#endif // _WIN64
TCHAR *ReadAsm(DWORD_PTR dwAddress, SIZE_T nSize, TCHAR *pLabelPerfix, TCHAR *lpError)
{
PLUGIN_MODULE module;
BYTE *pCode;
DISASM_CMD_HEAD dasm_head = {NULL, (DISASM_CMD_NODE *)&dasm_head};
TCHAR *lpText;
module = FindModuleByAddr(dwAddress);
// Allocate and read the code block
pCode = (BYTE *)HeapAlloc(GetProcessHeap(), 0, nSize);
if(!pCode)
{
lstrcpy(lpError, _T("Allocation failed"));
return NULL;
}
if(!SimpleReadMemory(pCode, dwAddress, nSize))
{
HeapFree(GetProcessHeap(), 0, pCode);
lstrcpy(lpError, _T("Could not read from memory"));
return NULL;
}
// Disasm the code, allocate the linked list of commands, fill it
if(!ProcessCode(dwAddress, nSize, pCode, &dasm_head, lpError))
{
HeapFree(GetProcessHeap(), 0, pCode);
FreeDisasmCmdList(&dasm_head);
return NULL;
}
// Labels
if(options.disasm_label)
{
// Mark labels
MarkLabels(dwAddress, nSize, pCode, &dasm_head);
// Add external jumps and calls
if(options.disasm_extjmp)
{
if(!ProcessExternalCode(dwAddress, nSize, module, pCode, &dasm_head, lpError))
{
HeapFree(GetProcessHeap(), 0, pCode);
FreeDisasmCmdList(&dasm_head);
return NULL;
}
}
// Give names to labels, and set them in commands
if(!CreateAndSetLabels(dwAddress, nSize, pCode, &dasm_head, pLabelPerfix, lpError))
{
HeapFree(GetProcessHeap(), 0, pCode);
FreeDisasmCmdList(&dasm_head);
return NULL;
}
}
HeapFree(GetProcessHeap(), 0, pCode);
if(options.disasm_rva)
{
// Set RVA addresses in commands
if(!SetRVAAddresses(dwAddress, nSize, module, &dasm_head, lpError))
{
FreeDisasmCmdList(&dasm_head);
return NULL;
}
}
// Make our text!
lpText = MakeText(dwAddress, module, &dasm_head, lpError);
if(!lpText)
{
FreeDisasmCmdList(&dasm_head);
return NULL;
}
FreeDisasmCmdList(&dasm_head);
return lpText;
}
static BOOL ProcessCode(DWORD_PTR dwAddress, SIZE_T nSize, BYTE *pCode, DISASM_CMD_HEAD *p_dasm_head, TCHAR *lpError)
{
DISASM_CMD_NODE *dasm_cmd;
BYTE *bDecode;
SIZE_T nDecodeSize;
int nCommandType;
DWORD dwCommandSize;
TCHAR szComment[COMMENT_MAX_LEN];
int comment_length;
bDecode = FindDecode(dwAddress, &nDecodeSize);
if(bDecode && nDecodeSize < nSize)
bDecode = NULL;
while(nSize > 0)
{
// Get command type
if(bDecode)
nCommandType = DecodeGetType(*bDecode);
else
nCommandType = DECODE_UNKNOWN;
// Process it
switch(nCommandType)
{
// Unknown is treated as command
case DECODE_UNKNOWN:
// Supported data
case DECODE_DATA:
// Command
case DECODE_COMMAND:
dwCommandSize = ProcessCommand(pCode, nSize, dwAddress, bDecode, p_dasm_head, lpError);
break;
case DECODE_ASCII:
dwCommandSize = ProcessData(pCode, nSize, dwAddress, bDecode, nCommandType, p_dasm_head, lpError);
break;
case DECODE_UNICODE:
dwCommandSize = ProcessData(pCode, nSize, dwAddress, bDecode, nCommandType, p_dasm_head, lpError);
break;
}
if(dwCommandSize == 0)
return FALSE;
dasm_cmd = p_dasm_head->last;
// Comments?
comment_length = GetComment(dwAddress, szComment);
if(comment_length > 0)
{
dasm_cmd->lpComment = (TCHAR *)HeapAlloc(GetProcessHeap(), 0, (comment_length+1)*sizeof(TCHAR));
if(!dasm_cmd->lpComment)
{
lstrcpy(lpError, _T("Allocation failed"));
return 0;
}
lstrcpy(dasm_cmd->lpComment, szComment);
}
// Update values
*pCode = 1;
ZeroMemory(pCode+1, dwCommandSize-1);
pCode += dwCommandSize;
nSize -= dwCommandSize;
dwAddress += dwCommandSize;
if(bDecode)
bDecode += dwCommandSize;
}
return TRUE;
}
static DWORD ProcessCommand(BYTE *pCode, SIZE_T nSize, DWORD_PTR dwAddress, BYTE *bDecode, DISASM_CMD_HEAD *p_dasm_head, TCHAR *lpError)
{
DISASM_CMD_NODE *dasm_cmd;
DWORD dwCommandSize;
TCHAR szCommandText[COMMAND_MAX_LEN];
DWORD_PTR jmpconst, adrconst, immconst;
// Disasm
dwCommandSize = SimpleDisasm(pCode, nSize, dwAddress, bDecode, FALSE,
szCommandText, &jmpconst, &adrconst, &immconst);
if(dwCommandSize == 0)
{
wsprintf(lpError, _T("Disasm failed on address 0x" HEXPTR_PADDED), dwAddress);
return 0;
}
// Allocate and fill
dasm_cmd = (DISASM_CMD_NODE *)HeapAlloc(GetProcessHeap(), 0, sizeof(DISASM_CMD_NODE));
if(!dasm_cmd)
{
lstrcpy(lpError, _T("Allocation failed"));
return 0;
}
dasm_cmd->lpCommand = (TCHAR *)HeapAlloc(GetProcessHeap(), 0, (lstrlen(szCommandText) + 1)*sizeof(TCHAR));
if(!dasm_cmd->lpCommand)
{
HeapFree(GetProcessHeap(), 0, dasm_cmd);
lstrcpy(lpError, _T("Allocation failed"));
return 0;
}
lstrcpy(dasm_cmd->lpCommand, szCommandText);
dasm_cmd->dwConst[0] = jmpconst;
dasm_cmd->dwConst[1] = adrconst;
dasm_cmd->dwConst[2] = immconst;
dasm_cmd->dwAddress = 0;
dasm_cmd->lpComment = NULL;
dasm_cmd->lpLabel = NULL;
dasm_cmd->next = NULL;
p_dasm_head->last->next = dasm_cmd;
p_dasm_head->last = dasm_cmd;
return dwCommandSize;
}
static DWORD ProcessData(BYTE *pCode, SIZE_T nSize, DWORD_PTR dwAddress,
BYTE *bDecode, int nCommandType, DISASM_CMD_HEAD *p_dasm_head, TCHAR *lpError)
{
DISASM_CMD_NODE *dasm_cmd;
DWORD dwCommandSize;
DWORD dwTextSize;
BOOL bReadAsBinary;
int i;
// Check size of data
dwCommandSize = SimpleDisasm(pCode, nSize, dwAddress, bDecode, TRUE,
NULL, NULL, NULL, NULL);
if(dwCommandSize == 0)
{
wsprintf(lpError, _T("Disasm failed on address 0x" HEXPTR_PADDED), dwAddress);
return 0;
}
// Check whether it's text or binary data, and calc size
switch(nCommandType)
{
case DECODE_UNICODE:
if(ValidateUnicode(pCode, dwCommandSize, &dwTextSize, &bReadAsBinary))
nCommandType = DECODE_UNICODE;
else
nCommandType = DECODE_UNKNOWN;
break;
case DECODE_ASCII:
default:
if(ValidateAscii(pCode, dwCommandSize, &dwTextSize, &bReadAsBinary))
nCommandType = DECODE_ASCII;
else
nCommandType = DECODE_UNKNOWN;
break;
}
if(nCommandType == DECODE_UNKNOWN)
{
wsprintf(lpError, _T("Couldn't parse data on address 0x" HEXPTR_PADDED), dwAddress);
return 0;
}
// Allocate and fill
dasm_cmd = (DISASM_CMD_NODE *)HeapAlloc(GetProcessHeap(), 0, sizeof(DISASM_CMD_NODE));
if(!dasm_cmd)
{
lstrcpy(lpError, _T("Allocation failed"));
return 0;
}
dasm_cmd->lpCommand = (TCHAR *)HeapAlloc(GetProcessHeap(), 0, (dwTextSize+1)*sizeof(TCHAR));
if(!dasm_cmd->lpCommand)
{
HeapFree(GetProcessHeap(), 0, dasm_cmd);
lstrcpy(lpError, _T("Allocation failed"));
return 0;
}
switch(nCommandType)
{
case DECODE_UNICODE:
ConvertUnicodeToText(pCode, dwCommandSize, bReadAsBinary, dasm_cmd->lpCommand);
break;
case DECODE_ASCII:
ConvertAsciiToText(pCode, dwCommandSize, bReadAsBinary, dasm_cmd->lpCommand);
break;
}
for(i=0; i<3; i++)
dasm_cmd->dwConst[i] = 0;
dasm_cmd->dwAddress = 0;
dasm_cmd->lpComment = NULL;
dasm_cmd->lpLabel = NULL;
dasm_cmd->next = NULL;
p_dasm_head->last->next = dasm_cmd;
p_dasm_head->last = dasm_cmd;
return dwCommandSize;
}
static BOOL ValidateUnicode(BYTE *p, DWORD dwSize, DWORD *pdwTextSize, BOOL *pbReadAsBinary)
{
WORD *pw;
DWORD dwSizeW;
DWORD dwTextSize;
BOOL bReadAsBinary;
DWORD i;
if(dwSize % 2)
return FALSE;
pw = (WORD *)p;
dwSizeW = dwSize/2;
dwTextSize = 0;
bReadAsBinary = FALSE;
for(i=0; !bReadAsBinary && i<dwSizeW; i++)
{
if(pw[i] > 126)
{
bReadAsBinary = TRUE;
}
else if(pw[i] < 32)
{
switch(pw[i])
{
case L'\0':
case L'\a':
case L'\b':
case L'\f':
case L'\r':
case L'\n':
case L'\t':
case L'\v':
dwTextSize += 2;
break;
default:
bReadAsBinary = TRUE;
break;
}
}
else if(pw[i] == L'\\' || pw[i] == L'\"')
dwTextSize += 2;
else
dwTextSize++;
}
if(bReadAsBinary)
dwTextSize = dwSizeW*6; // \xFFFE
*pdwTextSize = dwTextSize+3; // for L""
*pbReadAsBinary = bReadAsBinary;
return TRUE;
}
static BOOL ValidateAscii(BYTE *p, DWORD dwSize, DWORD *pdwTextSize, BOOL *pbReadAsBinary)
{
DWORD dwTextSize;
BOOL bReadAsBinary;
DWORD i;
dwTextSize = 0;
bReadAsBinary = FALSE;
for(i=0; !bReadAsBinary && i<dwSize; i++)
{
if(p[i] > 126)
{
bReadAsBinary = TRUE;
}
else if(p[i] < 32)
{
switch(p[i])
{
case '\0':
case '\a':
case '\b':
case '\f':
case '\r':
case '\n':
case '\t':
case '\v':
dwTextSize += 2;
break;
default:
bReadAsBinary = TRUE;
break;
}
}
else if(p[i] == '\\' || p[i] == '\"')
dwTextSize += 2;
else
dwTextSize++;
}
if(bReadAsBinary)
dwTextSize = dwSize*4; // \xFE
*pdwTextSize = dwTextSize+2; // for ""
*pbReadAsBinary = bReadAsBinary;
return TRUE;
}
static void ConvertUnicodeToText(BYTE *p, DWORD dwSize, BOOL bAsBinary, TCHAR *pText)
{
WORD *pw;
DWORD dwSizeW;
pw = (WORD *)p;
dwSizeW = dwSize/2;
*pText++ = _T('L');
*pText++ = _T('\"');
if(!bAsBinary)
{
while(dwSizeW--)
{
switch(*pw)
{
case L'\\':
case L'\"':
*pText++ = _T('\\');
*pText++ = (TCHAR)*pw;
break;
case L'\0':
*pText++ = _T('\\');
*pText++ = _T('0');
break;
case L'\a':
*pText++ = _T('\\');
*pText++ = _T('a');
break;
case L'\b':
*pText++ = _T('\\');
*pText++ = _T('b');
break;
case L'\f':
*pText++ = _T('\\');
*pText++ = _T('f');
break;
case L'\r':
*pText++ = _T('\\');
*pText++ = _T('r');
break;
case L'\n':
*pText++ = _T('\\');
*pText++ = _T('n');
break;
case L'\t':
*pText++ = _T('\\');
*pText++ = _T('t');
break;
case L'\v':
*pText++ = _T('\\');
*pText++ = _T('v');
break;
default:
*pText++ = (TCHAR)*pw;
break;
}
pw++;
}
}
else
{
while(dwSizeW--)
pText += wsprintf(pText, _T("\\x%04X"), *pw++);
}
*pText++ = _T('\"');
*pText++ = _T('\0');
}
static void ConvertAsciiToText(BYTE *p, DWORD dwSize, BOOL bAsBinary, TCHAR *pText)
{
*pText++ = _T('\"');
if(!bAsBinary)
{
while(dwSize--)
{
switch(*p)
{
case '\\':
case '\"':
*pText++ = _T('\\');
*pText++ = (TCHAR)*p;
break;
case '\0':
*pText++ = _T('\\');
*pText++ = _T('0');
break;
case '\a':
*pText++ = _T('\\');
*pText++ = _T('a');
break;
case '\b':
*pText++ = _T('\\');
*pText++ = _T('b');
break;
case '\f':
*pText++ = _T('\\');
*pText++ = _T('f');
break;
case '\r':
*pText++ = _T('\\');
*pText++ = _T('r');
break;
case '\n':
*pText++ = _T('\\');
*pText++ = _T('n');
break;
case '\t':
*pText++ = _T('\\');
*pText++ = _T('t');
break;
case '\v':
*pText++ = _T('\\');
*pText++ = _T('v');
break;
default:
*pText++ = (TCHAR)*p;
break;
}
p++;
}
}
else
{
while(dwSize--)
pText += wsprintf(pText, _T("\\x%02X"), *p++);
}
*pText++ = _T('\"');
*pText++ = _T('\0');
}
static void MarkLabels(DWORD_PTR dwAddress, SIZE_T nSize, BYTE *pCode, DISASM_CMD_HEAD *p_dasm_head)
{
DISASM_CMD_NODE *dasm_cmd;
int i;
for(dasm_cmd = p_dasm_head->next; dasm_cmd != NULL; dasm_cmd = dasm_cmd->next)
{
for(i=0; i<3; i++)
{
if(dasm_cmd->dwConst[i])
{
if(
dasm_cmd->dwConst[i] >= dwAddress &&
dasm_cmd->dwConst[i] < dwAddress + nSize &&
pCode[dasm_cmd->dwConst[i]-dwAddress] == 1
)
pCode[dasm_cmd->dwConst[i]-dwAddress] = 2;
}
}
}
}
static BOOL ProcessExternalCode(DWORD_PTR dwAddress, SIZE_T nSize, PLUGIN_MODULE module,
BYTE *pCode, DISASM_CMD_HEAD *p_dasm_head, TCHAR *lpError)
{
#if defined(TARGET_ODBG) || defined(TARGET_IMMDBG) || defined(TARGET_ODBG2)
t_jmp *jmpdata;
int njmpdata;
DWORD_PTR dwCodeBase;
SIZE_T nCodeSize;
DWORD_PTR dwFromAddr, dwToAddr;
BOOL bAdded;
int i;
if(!module)
return TRUE;
#if defined(TARGET_ODBG) || defined(TARGET_IMMDBG)
jmpdata = module->jddata;
njmpdata = module->njddata;
#elif defined(TARGET_ODBG2)
jmpdata = module->jumps.jmpdata;
njmpdata = module->jumps.njmp;
#else
#error Unknonw target
#endif
dwCodeBase = module->codebase;
nCodeSize = module->codesize;
for(i=0; i<njmpdata; i++)
{
#if defined(TARGET_ODBG) || defined(TARGET_IMMDBG)
dwFromAddr = jmpdata[i].from+dwCodeBase;
dwToAddr = jmpdata[i].to+dwCodeBase;
#elif defined(TARGET_ODBG2)
dwFromAddr = jmpdata[i].from;
dwToAddr = jmpdata[i].dest;
#else
#error Unknonw target
#endif
if(
(dwFromAddr < dwAddress || dwFromAddr >= dwAddress+nSize) &&
dwToAddr >= dwAddress && dwToAddr < dwAddress+nSize &&
(jmpdata[i].type == JT_JUMP || jmpdata[i].type == JT_COND || jmpdata[i].type == JT_CALL) &&
pCode[dwToAddr-dwAddress] != 0
)
{
if(!AddExternalCode(dwFromAddr, dwCodeBase, nCodeSize, p_dasm_head, &bAdded, lpError))
return FALSE;
if(bAdded)
pCode[dwToAddr-dwAddress] = 2;
}
}
#elif defined(TARGET_X64DBG)
DWORD_PTR dwFromAddr, dwToAddr;
XREF_INFO xrefInfo;
PLUGIN_MEMORY memory;
DWORD_PTR dwCodeBase;
SIZE_T nCodeSize;
BOOL bAdded;
SIZE_T i, j;
for(i = 0; i < nSize; i++)
{
if(pCode[i] == 0)
continue;
dwToAddr = dwAddress + i;
if(!DbgXrefGet(dwToAddr, &xrefInfo) || xrefInfo.refcount == 0)
continue;
for(j = 0; j < xrefInfo.refcount; j++)
{
dwFromAddr = xrefInfo.references[j].addr;
if(dwFromAddr >= dwAddress && dwFromAddr < dwAddress + nSize)
continue;
memory = FindMemory(dwFromAddr);
if(!memory)
continue;
dwCodeBase = GetMemoryBase(memory);
nCodeSize = GetMemorySize(memory);
if(!AddExternalCode(dwFromAddr, dwCodeBase, nCodeSize, p_dasm_head, &bAdded, lpError))
{
BridgeFree(xrefInfo.references);
return FALSE;
}
if(bAdded)
pCode[dwToAddr - dwAddress] = 2;
}
BridgeFree(xrefInfo.references);
}
#else
#error Unknonw target
#endif
return TRUE;
}
static BOOL AddExternalCode(DWORD_PTR dwAddress, DWORD_PTR dwCodeBase, SIZE_T nCodeSize,
DISASM_CMD_HEAD *p_dasm_head, BOOL *pbAdded, TCHAR *lpError)
{
DISASM_CMD_NODE *dasm_cmd;
BYTE *bDecode;
int nCommandType;
BYTE bBuffer[MAXCMDSIZE];
DWORD dwCommandSize;
TCHAR szComment[COMMENT_MAX_LEN];
int nCommentLength;
bDecode = FindDecode(dwAddress, NULL);
if(bDecode)
nCommandType = DecodeGetType(*bDecode);
else
nCommandType = DECODE_UNKNOWN;
if(nCommandType == DECODE_UNKNOWN || nCommandType == DECODE_COMMAND)
{
// Try to read and process...
if(dwCodeBase + nCodeSize - dwAddress < MAXCMDSIZE)
dwCommandSize = (DWORD)(dwCodeBase + nCodeSize - dwAddress);
else
dwCommandSize = MAXCMDSIZE;
if(!SimpleReadMemory(bBuffer, dwAddress, dwCommandSize))
{
wsprintf(lpError, _T("Could not read memory on address 0x" HEXPTR_PADDED), dwAddress);
return FALSE;
}
dwCommandSize = ProcessCommand(bBuffer, dwCommandSize, dwAddress, bDecode, p_dasm_head, lpError);
if(dwCommandSize == 0)
return FALSE;
// We did it!
dasm_cmd = p_dasm_head->last;
// Comments?
nCommentLength = GetComment(dwAddress, szComment);
if(nCommentLength > 0)
{
dasm_cmd->lpComment = (TCHAR *)HeapAlloc(GetProcessHeap(), 0, (nCommentLength + 1)*sizeof(TCHAR));
if(!dasm_cmd->lpComment)
{
lstrcpy(lpError, _T("Allocation failed"));
return FALSE;
}
lstrcpy(dasm_cmd->lpComment, szComment);
}
dasm_cmd->dwAddress = dwAddress;
*pbAdded = TRUE;
}
else
{
*pbAdded = FALSE;
}
return TRUE;
}
static BOOL CreateAndSetLabels(DWORD_PTR dwAddress, SIZE_T nSize,
BYTE *pCode, DISASM_CMD_HEAD *p_dasm_head, TCHAR *pLabelPerfix, TCHAR *lpError)
{
DISASM_CMD_NODE *dasm_cmd, *dasm_cmd_2;
UINT nLabelCounter;
TCHAR szAtLabel[LABEL_MAX_LEN+1];
TCHAR *pLabel;
int nLabelLen;
SIZE_T i;
int j;
dasm_cmd = p_dasm_head->next;
nLabelCounter = 1;
szAtLabel[0] = _T('@');
pLabel = &szAtLabel[1];
if(options.disasm_labelgen == 2)
{
// Make pLabelPerfix valid
for(i=0; i<32 && pLabelPerfix[i] != _T('\0'); i++)
{
if(
(pLabelPerfix[i] < _T('0') || pLabelPerfix[i] > _T('9')) &&
(pLabelPerfix[i] < _T('A') || pLabelPerfix[i] > _T('Z')) &&
(pLabelPerfix[i] < _T('a') || pLabelPerfix[i] > _T('z')) &&
pLabelPerfix[i] != _T('_')
)
pLabelPerfix[i] = _T('_');
}
if(i == 32)
pLabelPerfix[i] = _T('\0');
}
for(i = 0; i < nSize; i++)
{
if(pCode[i] == 0)
continue;
if(pCode[i] == 2)
{
if(!GetLabel(dwAddress + i, pLabel) || !IsValidLabel(pLabel, p_dasm_head, dasm_cmd))
{
switch(options.disasm_labelgen)
{
default: // just in case
case 0:
nLabelLen = wsprintf(pLabel, _T("L%08u"), nLabelCounter++);
break;
case 1:
nLabelLen = wsprintf(pLabel, _T("L_" HEXPTR_PADDED), dwAddress + i);
break;
case 2:
nLabelLen = wsprintf(pLabel, _T("L_%s_%08u"), pLabelPerfix, nLabelCounter++);
break;
}
}
else
nLabelLen = lstrlen(pLabel);
dasm_cmd->lpLabel = (TCHAR *)HeapAlloc(GetProcessHeap(), 0, (nLabelLen+1)*sizeof(TCHAR));
if(!dasm_cmd->lpLabel)
{
lstrcpy(lpError, _T("Allocation failed"));
return FALSE;
}
lstrcpy(dasm_cmd->lpLabel, pLabel);
for(dasm_cmd_2 = p_dasm_head->next; dasm_cmd_2 != NULL; dasm_cmd_2 = dasm_cmd_2->next)
{
for(j=0; j<3; j++)
{
if(dasm_cmd_2->dwConst[j] && dasm_cmd_2->dwConst[j]-dwAddress == i)
{
dasm_cmd_2->dwConst[j] = 0;
for(j++; j<3; j++)
if(dasm_cmd_2->dwConst[j] && dasm_cmd_2->dwConst[j]-dwAddress == i)
dasm_cmd_2->dwConst[j] = 0;
if(!ReplaceAddressWithText(&dasm_cmd_2->lpCommand, dwAddress+i, szAtLabel, lpError))
return FALSE;
}
}
}
}
dasm_cmd = dasm_cmd->next;
}
return TRUE;
}
static BOOL IsValidLabel(TCHAR *lpLabel, DISASM_CMD_HEAD *p_dasm_head, DISASM_CMD_NODE *dasm_cmd_target)
{
DISASM_CMD_NODE *dasm_cmd;
int nLabelLen;
int i;
// Generic validation
for(i=0; lpLabel[i] != _T('\0'); i++)
{
if(
(lpLabel[i] < _T('0') || lpLabel[i] > _T('9')) &&
(lpLabel[i] < _T('A') || lpLabel[i] > _T('Z')) &&
(lpLabel[i] < _T('a') || lpLabel[i] > _T('z')) &&
lpLabel[i] != _T('_')
)
return FALSE;
}
// Conflicts with our labels
if(lpLabel[0] == _T('L'))
{
nLabelLen = lstrlen(lpLabel);
if(nLabelLen == 9 || (nLabelLen > 10 && lpLabel[1] == _T('_') && lpLabel[nLabelLen-8-1] == _T('_')))
{
for(i=nLabelLen-8; i<nLabelLen; i++)
{
if(lpLabel[i] < _T('0') || lpLabel[i] > _T('9'))
break;
}
}
else if(nLabelLen == 10 && lpLabel[1] == _T('_'))
{
for(i=nLabelLen-8; i<nLabelLen; i++)
{
if((lpLabel[i] < _T('0') || lpLabel[i] > _T('9')) &&
(lpLabel[i] < _T('A') || lpLabel[i] > _T('F')))
break;
}
}
else
i = 0;
if(i == 9)
return FALSE;
}
// Check for duplicates
for(dasm_cmd = p_dasm_head->next; dasm_cmd != dasm_cmd_target; dasm_cmd = dasm_cmd->next)
if(dasm_cmd->lpLabel && lstrcmp(lpLabel, dasm_cmd->lpLabel) == 0)
return FALSE;
return TRUE;
}
static BOOL SetRVAAddresses(DWORD_PTR dwAddress, SIZE_T nSize, PLUGIN_MODULE module, DISASM_CMD_HEAD *p_dasm_head, TCHAR *lpError)
{
DWORD_PTR dwModuleBase;
SIZE_T nModuleSize;
DISASM_CMD_NODE *dasm_cmd;
TCHAR szRVAText[2 + 2 + sizeof(DWORD_PTR) * 2 + 1];
TCHAR *pRVAAddress;
int i, j;
if(!module || (options.disasm_rva_reloconly && !IsModuleWithRelocations(module)))
return TRUE;
dwModuleBase = GetModuleBase(module);
nModuleSize = GetModuleSize(module);
szRVAText[0] = _T('$');
szRVAText[1] = _T('$');
pRVAAddress = &szRVAText[2];
for(dasm_cmd = p_dasm_head->next; dasm_cmd != NULL; dasm_cmd = dasm_cmd->next)
{
for(i=0; i<3; i++)
{
if(dasm_cmd->dwConst[i])
{
if(
dasm_cmd->dwConst[i] >= dwModuleBase &&
dasm_cmd->dwConst[i] < dwModuleBase + nModuleSize
)
{
DWORDPtrToString(pRVAAddress, dasm_cmd->dwConst[i] - dwModuleBase, FALSE, 0);
if(!ReplaceAddressWithText(&dasm_cmd->lpCommand, dasm_cmd->dwConst[i], szRVAText, lpError))
return FALSE;
for(j=i+1; j<3; j++)
if(dasm_cmd->dwConst[j] == dasm_cmd->dwConst[i])
dasm_cmd->dwConst[j] = 0;
dasm_cmd->dwConst[i] = 0;
}
}
}
}
return TRUE;
}
static TCHAR *MakeText(DWORD_PTR dwAddress, PLUGIN_MODULE module, DISASM_CMD_HEAD *p_dasm_head, TCHAR *lpError)
{
DISASM_CMD_NODE *dasm_cmd;
BOOL bRVAAddresses;
DWORD_PTR dwModuleBase;
TCHAR szRVAText[1 + MODULE_MAX_LEN + 2 + 1];
TCHAR *lpText, *lpRealloc;
SIZE_T nSize, nMemory;
nMemory = 4096*2;
lpText = (TCHAR *)HeapAlloc(GetProcessHeap(), 0, nMemory*sizeof(TCHAR));
if(!lpText)
{
lstrcpy(lpError, _T("Allocation failed"));
return NULL;
}
bRVAAddresses = (options.disasm_rva && module && (!options.disasm_rva_reloconly || IsModuleWithRelocations(module)));
if(bRVAAddresses)
{
dwModuleBase = GetModuleBase(module);
if(!MakeRVAText(szRVAText, module))
{
lstrcpy(lpError, _T("Couldn't make RVA label text"));
return NULL;
}