You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
444 lines
12 KiB
444 lines
12 KiB
/*++
|
|
|
|
Copyright (c) 1989-2000 Microsoft Corporation
|
|
|
|
Module Name:
|
|
|
|
sdbapi.c
|
|
|
|
Abstract:
|
|
|
|
ANTI-BUGBUG: This module implements ...
|
|
NT-only version information retrieval
|
|
|
|
Author:
|
|
|
|
VadimB created sometime toward the end of November 2000
|
|
|
|
Revision History:
|
|
|
|
several people contributed (vadimb, clupu, ...)
|
|
|
|
--*/
|
|
|
|
#include "sdbp.h"
|
|
|
|
BOOL
|
|
SdbpGetFileVersionInformation(
|
|
IN PIMAGEFILEDATA pImageData, // we assume that the file has been mapped
|
|
// in for other purposes
|
|
OUT LPVOID* ppVersionInfo, // receives pointer to the (allocated) version
|
|
// resource
|
|
OUT VS_FIXEDFILEINFO** ppFixedVersionInfo // receives pointer to fixed version info
|
|
);
|
|
|
|
|
|
BOOL
|
|
SdbpVerQueryValue(
|
|
const LPVOID pb,
|
|
LPVOID lpSubBlockX, // can be only unicode
|
|
LPVOID* lplpBuffer,
|
|
PUINT puLen
|
|
);
|
|
|
|
|
|
#if defined(KERNEL_MODE) && defined(ALLOC_DATA_PRAGMA)
|
|
#pragma data_seg()
|
|
#endif // KERNEL_MODE && ALLOC_DATA_PRAGMA
|
|
|
|
|
|
#if defined(KERNEL_MODE) && defined(ALLOC_PRAGMA)
|
|
#pragma alloc_text(PAGE, SdbpGetFileVersionInformation)
|
|
#pragma alloc_text(PAGE, SdbpVerQueryValue)
|
|
#endif // KERNEL_MODE && ALLOC_PRAGMA
|
|
|
|
typedef struct _RESOURCE_DATAW {
|
|
USHORT TotalSize;
|
|
USHORT DataSize;
|
|
USHORT Type;
|
|
WCHAR szName[16]; // L"VS_VERSION_INFO" + unicode nul
|
|
VS_FIXEDFILEINFO FixedFileInfo;
|
|
} VERSIONINFOW, *PVERSIONINFOW;
|
|
|
|
|
|
BOOL
|
|
SdbpGetFileVersionInformation(
|
|
IN PIMAGEFILEDATA pImageData, // we assume that the file has been mapped
|
|
// in for other purposes
|
|
OUT LPVOID* ppVersionInfo, // receives pointer to the (allocated) version
|
|
// resource
|
|
OUT VS_FIXEDFILEINFO** ppFixedVersionInfo // receives pointer to fixed version info
|
|
)
|
|
/*++
|
|
Return: BUGBUG: ?
|
|
|
|
Desc: BUGBUG: ?
|
|
--*/
|
|
{
|
|
NTSTATUS Status;
|
|
ULONG_PTR ulPath[3];
|
|
LPVOID pImageBase;
|
|
PVERSIONINFOW pVersionInfo = NULL;
|
|
ULONG ulVersionSize = 0;
|
|
LPVOID pVersionBuffer;
|
|
DWORD dwModuleType = MT_UNKNOWN_MODULE;
|
|
|
|
PIMAGE_RESOURCE_DATA_ENTRY pImageResourceData;
|
|
|
|
//
|
|
// Check module type first. We only recognize win32 modules.
|
|
//
|
|
if (!SdbpGetModuleType(&dwModuleType, pImageData) || dwModuleType != MT_W32_MODULE) {
|
|
DBGPRINT((sdlError,
|
|
"SdbpGetFileVersionInformation",
|
|
"Bad module type 0x%x\n",
|
|
dwModuleType));
|
|
return FALSE;
|
|
}
|
|
|
|
pImageBase = (LPVOID)pImageData->pBase;
|
|
|
|
//
|
|
// Setup the path to the resource
|
|
//
|
|
ulPath[0] = PtrToUlong(RT_VERSION);
|
|
ulPath[1] = PtrToUlong(MAKEINTRESOURCE(VS_VERSION_INFO));
|
|
ulPath[2] = 0;
|
|
|
|
//
|
|
// See if the resource has come through.
|
|
//
|
|
__try {
|
|
|
|
Status = LdrFindResource_U(pImageBase, ulPath, 3, &pImageResourceData);
|
|
|
|
if (!NT_SUCCESS(Status)) {
|
|
DBGPRINT((sdlError,
|
|
"SdbpGetFileVersionInformation",
|
|
"LdrFindResource_U failed status 0x%x\n",
|
|
Status));
|
|
return FALSE;
|
|
}
|
|
|
|
Status = LdrAccessResource(pImageBase, pImageResourceData, &pVersionInfo, &ulVersionSize);
|
|
|
|
if (!NT_SUCCESS(Status)) {
|
|
DBGPRINT((sdlError,
|
|
"SdbpGetFileVersionInformation",
|
|
"LdrAccessResource failed Status 0x%x\n",
|
|
Status));
|
|
return FALSE;
|
|
}
|
|
} __except(EXCEPTION_EXECUTE_HANDLER) {
|
|
|
|
DBGPRINT((sdlError,
|
|
"SdbpGetFileVersionInformation",
|
|
"Exception while trying to retrieve version-related information\n"));
|
|
|
|
Status = STATUS_UNSUCCESSFUL;
|
|
}
|
|
|
|
if (!NT_SUCCESS(Status)) {
|
|
return FALSE;
|
|
}
|
|
|
|
//
|
|
// Check to make sure that what we have got is good.
|
|
//
|
|
if (sizeof(*pVersionInfo) > ulVersionSize ||
|
|
_wcsicmp(pVersionInfo->szName, L"VS_VERSION_INFO") != 0) {
|
|
|
|
DBGPRINT((sdlError,
|
|
"SdbpGetFileVersionInformation",
|
|
"Bad version resource\n"));
|
|
return FALSE;
|
|
}
|
|
|
|
//
|
|
// Now we have a pointer to the resource data. Allocate version information.
|
|
//
|
|
pVersionBuffer = (LPVOID)SdbAlloc(ulVersionSize);
|
|
|
|
if (pVersionBuffer == NULL) {
|
|
DBGPRINT((sdlError,
|
|
"SdbpGetFileVersionInformation",
|
|
"Failed to allocate %d bytes for version information\n",
|
|
ulVersionSize));
|
|
return FALSE;
|
|
}
|
|
|
|
//
|
|
// Copy all the version-related information
|
|
//
|
|
RtlMoveMemory(pVersionBuffer, pVersionInfo, ulVersionSize);
|
|
|
|
if (ppFixedVersionInfo != NULL) {
|
|
*ppFixedVersionInfo = &(((PVERSIONINFOW)pVersionBuffer)->FixedFileInfo);
|
|
}
|
|
|
|
assert(ppVersionInfo != NULL);
|
|
|
|
*ppVersionInfo = pVersionBuffer;
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
|
|
////////////////////////////////////////////////////////////////////////////
|
|
//
|
|
// This code was taken from Cornel's win2k tree
|
|
//
|
|
|
|
|
|
#define DWORDUP(x) (((x) + 3) & ~3)
|
|
|
|
typedef struct tagVERBLOCK {
|
|
WORD wTotLen;
|
|
WORD wValLen;
|
|
WORD wType;
|
|
WCHAR szKey[1];
|
|
} VERBLOCK ;
|
|
|
|
typedef struct tagVERHEAD {
|
|
WORD wTotLen;
|
|
WORD wValLen;
|
|
WORD wType; /* always 0 */
|
|
WCHAR szKey[(sizeof("VS_VERSION_INFO") + 3) & ~03];
|
|
VS_FIXEDFILEINFO vsf;
|
|
} VERHEAD ;
|
|
|
|
|
|
BOOL
|
|
SdbpVerQueryValue(
|
|
const LPVOID pb,
|
|
LPVOID lpSubBlockX, // can be only unicode
|
|
LPVOID* lplpBuffer,
|
|
PUINT puLen
|
|
)
|
|
/*++
|
|
Return: BUGBUG: ?
|
|
|
|
Desc: BUGBUG: ?
|
|
--*/
|
|
{
|
|
LPWSTR lpSubBlockOrg;
|
|
LPWSTR lpSubBlock;
|
|
VERBLOCK* pBlock = (PVOID)pb;
|
|
LPWSTR lpStart, lpEndBlock, lpEndSubBlock;
|
|
WCHAR cTemp, cEndBlock;
|
|
DWORD dwHeadLen, dwTotBlockLen;
|
|
BOOL bLastSpec;
|
|
int nCmp, nLen;
|
|
BOOL bString;
|
|
int nIndex = -1;
|
|
|
|
*puLen = 0;
|
|
|
|
//
|
|
// wType is 0 for win32 versions, but holds 56 ('V') for win16.
|
|
//
|
|
if (((VERHEAD*)pb)->wType) {
|
|
return 0;
|
|
}
|
|
|
|
//
|
|
// If doesn't need unicode, then we must thunk the input parameter
|
|
// to unicode. lpSubBlockX should always be far less than 0xffffffff
|
|
// in length.
|
|
//
|
|
nLen = __max((int) wcslen(lpSubBlockX) + 1, 1);
|
|
|
|
STACK_ALLOC(lpSubBlockOrg, nLen * sizeof(WCHAR));
|
|
|
|
if (lpSubBlockOrg == NULL) {
|
|
DBGPRINT((sdlError,
|
|
"SdbpVerQueryValue",
|
|
"Failed to allocate %d bytes\n",
|
|
(wcslen(lpSubBlockX) + 1) * sizeof(WCHAR)));
|
|
return FALSE;
|
|
}
|
|
|
|
*lpSubBlockOrg = L'\0'; // we know that the least we have is one character
|
|
StringCchCopy(lpSubBlockOrg, nLen, lpSubBlockX);
|
|
|
|
lpSubBlock = lpSubBlockOrg;
|
|
|
|
//
|
|
// Ensure that the total length is less than 32K but greater than the
|
|
// size of a block header; we will assume that the size of pBlock is at
|
|
// least the value of this first int.
|
|
// Put a '\0' at the end of the block so that none of the wcslen's will
|
|
// go past then end of the block. We will replace it before returning.
|
|
//
|
|
if ((int)pBlock->wTotLen < sizeof(VERBLOCK)) {
|
|
goto Fail;
|
|
}
|
|
|
|
lpEndBlock = (LPWSTR)((LPSTR)pBlock + pBlock->wTotLen - sizeof(WCHAR));
|
|
cEndBlock = *lpEndBlock;
|
|
*lpEndBlock = 0;
|
|
bString = FALSE;
|
|
bLastSpec = FALSE;
|
|
|
|
while ((*lpSubBlock || nIndex != -1)) {
|
|
//
|
|
// Ignore leading '\\'s
|
|
//
|
|
while (*lpSubBlock == TEXT('\\')) {
|
|
++lpSubBlock;
|
|
}
|
|
|
|
cTemp = 0;
|
|
|
|
if ((*lpSubBlock || nIndex != -1)) {
|
|
//
|
|
// Make sure we still have some of the block left to play with.
|
|
//
|
|
dwTotBlockLen = (DWORD)((LPSTR)lpEndBlock - (LPSTR)pBlock + sizeof(WCHAR));
|
|
|
|
if ((int)dwTotBlockLen < sizeof(VERBLOCK) || pBlock->wTotLen > (WORD)dwTotBlockLen) {
|
|
goto NotFound;
|
|
}
|
|
|
|
//
|
|
// Calculate the length of the "header" (the two length WORDs plus
|
|
// the data type flag plus the identifying string) and skip
|
|
// past the value.
|
|
//
|
|
dwHeadLen = (DWORD)(DWORDUP(sizeof(VERBLOCK) - sizeof(WCHAR) +
|
|
(wcslen(pBlock->szKey) + 1) * sizeof(WCHAR)) +
|
|
DWORDUP(pBlock->wValLen));
|
|
|
|
if (dwHeadLen > pBlock->wTotLen) {
|
|
goto NotFound;
|
|
}
|
|
|
|
lpEndSubBlock = (LPWSTR)((LPSTR)pBlock + pBlock->wTotLen);
|
|
pBlock = (VERBLOCK*)((LPSTR)pBlock+dwHeadLen);
|
|
|
|
//
|
|
// Look for the first sub-block name and terminate it
|
|
//
|
|
for (lpStart = lpSubBlock;
|
|
*lpSubBlock && *lpSubBlock != TEXT('\\');
|
|
lpSubBlock++) {
|
|
|
|
/* find next '\\' */ ;
|
|
}
|
|
|
|
cTemp = *lpSubBlock;
|
|
*lpSubBlock = 0;
|
|
|
|
//
|
|
// Continue while there are sub-blocks left
|
|
// pBlock->wTotLen should always be a valid pointer here because
|
|
// we have validated dwHeadLen above, and we validated the previous
|
|
// value of pBlock->wTotLen before using it
|
|
//
|
|
nCmp = 1;
|
|
|
|
while ((int)pBlock->wTotLen > sizeof(VERBLOCK) &&
|
|
(int)pBlock->wTotLen <= (LPSTR)lpEndSubBlock-(LPSTR)pBlock) {
|
|
|
|
//
|
|
// Index functionality: if we are at the end of the path
|
|
// (cTemp == 0 set below) and nIndex is NOT -1 (index search)
|
|
// then break on nIndex zero. Else do normal wscicmp.
|
|
//
|
|
if (bLastSpec && nIndex != -1) {
|
|
|
|
if (!nIndex) {
|
|
|
|
nCmp=0;
|
|
|
|
//
|
|
// Index found, set nInde to -1
|
|
// so that we exit this loop
|
|
//
|
|
nIndex = -1;
|
|
break;
|
|
}
|
|
|
|
nIndex--;
|
|
|
|
} else {
|
|
|
|
//
|
|
// Check if the sub-block name is what we are looking for
|
|
//
|
|
|
|
if (!(nCmp = _wcsicmp(lpStart, pBlock->szKey))) {
|
|
break;
|
|
}
|
|
}
|
|
|
|
//
|
|
// Skip to the next sub-block
|
|
//
|
|
pBlock=(VERBLOCK*)((LPSTR)pBlock+DWORDUP(pBlock->wTotLen));
|
|
}
|
|
|
|
//
|
|
// Restore the char NULLed above and return failure if the sub-block
|
|
// was not found
|
|
//
|
|
*lpSubBlock = cTemp;
|
|
|
|
if (nCmp) {
|
|
goto NotFound;
|
|
}
|
|
}
|
|
|
|
bLastSpec = !cTemp;
|
|
}
|
|
|
|
//
|
|
// Fill in the appropriate buffers and return success
|
|
///
|
|
|
|
*puLen = pBlock->wValLen;
|
|
|
|
//
|
|
// Add code to handle the case of a null value.
|
|
//
|
|
// If zero-len, then return the pointer to the null terminator
|
|
// of the key. Remember that this is thunked in the ansi case.
|
|
//
|
|
// We can't just look at pBlock->wValLen. Check if it really is
|
|
// zero-len by seeing if the end of the key string is the end of the
|
|
// block (i.e., the val string is outside of the current block).
|
|
//
|
|
|
|
lpStart = (LPWSTR)((LPSTR)pBlock + DWORDUP((sizeof(VERBLOCK) - sizeof(WCHAR)) +
|
|
(wcslen(pBlock->szKey)+1)*sizeof(WCHAR)));
|
|
|
|
*lplpBuffer = lpStart < (LPWSTR)((LPBYTE)pBlock + pBlock->wTotLen) ?
|
|
lpStart :
|
|
(LPWSTR)(pBlock->szKey + wcslen(pBlock->szKey));
|
|
|
|
bString = pBlock->wType;
|
|
|
|
*lpEndBlock = cEndBlock;
|
|
|
|
//
|
|
// Must free string we allocated above.
|
|
//
|
|
|
|
STACK_FREE(lpSubBlockOrg);
|
|
|
|
return TRUE;
|
|
|
|
|
|
NotFound:
|
|
//
|
|
// Restore the char we NULLed above
|
|
//
|
|
*lpEndBlock = cEndBlock;
|
|
|
|
Fail:
|
|
|
|
STACK_FREE(lpSubBlockOrg);
|
|
|
|
return FALSE;
|
|
}
|
|
|