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VersionShim
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optionally select target process(es) 

also improve config reading
This commit is contained in:
Xpl0itR 2023-11-05 06:57:07 +00:00
parent 2935e88ed9
commit 1bca5e9272
Signed by: Xpl0itR
GPG Key ID: 91798184109676AD
4 changed files with 105 additions and 48 deletions
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12
README.md
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@ -4,11 +4,15 @@ A Dynamic-Link Library which exports the same methods as version.dll (winver.h)
Usage
-----
Rename VersionShim.dll to `version.dll` and place it in the target application's search location,
then create a file named `Libraries.txt` in the same directory and list the paths to all the libraries you'd like to load,
each on a new line. Lines beginning with `#` will be skipped.
Rename VersionShim.dll to `version.dll` and place it in the target process's search location,
then create a file named `libraries.txt` in the same directory and list the paths to all the libraries you'd like to load,
each on a new line.
Libraries.txt *MUST* use CRLF line endings and be encoded in UTF-8 with *no* BOM.
You can optionally select the target process(es) by listing its path or filename, each on a new line preceded by `*`. These must come before the library paths.
Lines beginning with `#` will be skipped.
libraries.txt *MUST* be encoded in UTF-8.
License
-------

77
VersionShim/dllmain.c
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@ -1,4 +1,4 @@
// Copyright © 2023 Xpl0itR
// Copyright © 2023 Xpl0itR
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this
@ -7,48 +7,73 @@
#include "pch.h"
#include "util.h"
#pragma region Forward functions to version.dll
#pragma comment(linker, "/EXPORT:GetFileVersionInfoA=C:\\Windows\\System32\\version.GetFileVersionInfoA,@1")
#pragma comment(linker, "/EXPORT:GetFileVersionInfoByHandle=C:\\Windows\\System32\\version.GetFileVersionInfoByHandle,@2")
#pragma comment(linker, "/EXPORT:GetFileVersionInfoExA=C:\\Windows\\System32\\version.GetFileVersionInfoExA,@3")
#pragma comment(linker, "/EXPORT:GetFileVersionInfoExW=C:\\Windows\\System32\\version.GetFileVersionInfoExW,@4")
#pragma comment(linker, "/EXPORT:GetFileVersionInfoSizeA=C:\\Windows\\System32\\version.GetFileVersionInfoSizeA,@5")
#pragma comment(linker, "/EXPORT:GetFileVersionInfoSizeExA=C:\\Windows\\System32\\version.GetFileVersionInfoSizeExA,@6")
#pragma comment(linker, "/EXPORT:GetFileVersionInfoSizeExW=C:\\Windows\\System32\\version.GetFileVersionInfoSizeExW,@7")
#pragma comment(linker, "/EXPORT:GetFileVersionInfoSizeW=C:\\Windows\\System32\\version.GetFileVersionInfoSizeW,@8")
#pragma comment(linker, "/EXPORT:GetFileVersionInfoW=C:\\Windows\\System32\\version.GetFileVersionInfoW,@9")
#pragma comment(linker, "/EXPORT:VerFindFileA=C:\\Windows\\System32\\version.VerFindFileA,@10")
#pragma comment(linker, "/EXPORT:VerFindFileW=C:\\Windows\\System32\\version.VerFindFileW,@11")
#pragma comment(linker, "/EXPORT:VerInstallFileA=C:\\Windows\\System32\\version.VerInstallFileA,@12")
#pragma comment(linker, "/EXPORT:VerInstallFileW=C:\\Windows\\System32\\version.VerInstallFileW,@13")
#pragma comment(linker, "/EXPORT:VerLanguageNameA=C:\\Windows\\System32\\version.VerLanguageNameA,@14")
#pragma comment(linker, "/EXPORT:VerLanguageNameW=C:\\Windows\\System32\\version.VerLanguageNameW,@15")
#pragma comment(linker, "/EXPORT:VerQueryValueA=C:\\Windows\\System32\\version.VerQueryValueA,@16")
#pragma comment(linker, "/EXPORT:VerQueryValueW=C:\\Windows\\System32\\version.VerQueryValueW,@17")
#pragma region Forward functions to system version.dll
#pragma comment(linker, "/EXPORT:GetFileVersionInfoA=c:\\windows\\system32\\version.GetFileVersionInfoA")
#pragma comment(linker, "/EXPORT:GetFileVersionInfoByHandle=c:\\windows\\system32\\version.GetFileVersionInfoByHandle")
#pragma comment(linker, "/EXPORT:GetFileVersionInfoExA=c:\\windows\\system32\\version.GetFileVersionInfoExA")
#pragma comment(linker, "/EXPORT:GetFileVersionInfoExW=c:\\windows\\system32\\version.GetFileVersionInfoExW")
#pragma comment(linker, "/EXPORT:GetFileVersionInfoSizeA=c:\\windows\\system32\\version.GetFileVersionInfoSizeA")
#pragma comment(linker, "/EXPORT:GetFileVersionInfoSizeExA=c:\\windows\\system32\\version.GetFileVersionInfoSizeExA")
#pragma comment(linker, "/EXPORT:GetFileVersionInfoSizeExW=c:\\windows\\system32\\version.GetFileVersionInfoSizeExW")
#pragma comment(linker, "/EXPORT:GetFileVersionInfoSizeW=c:\\windows\\system32\\version.GetFileVersionInfoSizeW")
#pragma comment(linker, "/EXPORT:GetFileVersionInfoW=c:\\windows\\system32\\version.GetFileVersionInfoW")
#pragma comment(linker, "/EXPORT:VerFindFileA=c:\\windows\\system32\\version.VerFindFileA")
#pragma comment(linker, "/EXPORT:VerFindFileW=c:\\windows\\system32\\version.VerFindFileW")
#pragma comment(linker, "/EXPORT:VerInstallFileA=c:\\windows\\system32\\version.VerInstallFileA")
#pragma comment(linker, "/EXPORT:VerInstallFileW=c:\\windows\\system32\\version.VerInstallFileW")
#pragma comment(linker, "/EXPORT:VerLanguageNameA=c:\\windows\\system32\\version.VerLanguageNameA")
#pragma comment(linker, "/EXPORT:VerLanguageNameW=c:\\windows\\system32\\version.VerLanguageNameW")
#pragma comment(linker, "/EXPORT:VerQueryValueA=c:\\windows\\system32\\version.VerQueryValueA")
#pragma comment(linker, "/EXPORT:VerQueryValueW=c:\\windows\\system32\\version.VerQueryValueW")
#pragma endregion
BOOL APIENTRY DllMain(const HMODULE hModule, const DWORD fdwReason, LPCVOID lpReserved)
BOOL APIENTRY DllMain(CONST HMODULE hModule, CONST DWORD fdwReason, CONST LPVOID lpvReserved)
{
if (fdwReason != DLL_PROCESS_ATTACH)
return TRUE;
LPCH fileStr = NULL;
LPSTR fileStr = NULL;
DWORD fileLen = 0;
if (!OpenReadFileUtf8("Libraries.txt", &fileStr, &fileLen))
if (!OpenReadFileUtf8("libraries.txt", &fileStr, &fileLen))
{
MessageBoxA(NULL, "Failed to read Libraries.txt", PROJECT_NAME, ErrBoxType);
MessageBoxA(NULL, "Failed to read libraries.txt", PROJECT_NAME, ErrBoxType);
return TRUE;
}
int charsInLine;
for (LPCH line = fileStr, fileEnd = fileStr + fileLen; line < fileEnd; line += charsInLine + 2)
LPSTR callerPath[MAX_PATH + 1];
if (!GetModuleFileNameA(NULL, callerPath, MAX_PATH + 1)) // NOLINT(clang-diagnostic-incompatible-pointer-types)
{
charsInLine = TerminateLineCrlf(line);
MessageBoxA(NULL, "Failed to read caller path", PROJECT_NAME, ErrBoxType);
return TRUE;
}
int read, hasTarget = FALSE, targetMatched = FALSE;
for (LPSTR line = SkipBomUtf8(fileStr), fileEnd = fileStr + fileLen; line < fileEnd; line += read)
{
read = TerminateLine(line);
if (*line == '#')
continue;
if (*line == '*')
{
if (!targetMatched)
{
hasTarget = TRUE;
if (StrEndsWith(callerPath, line + 1)) // NOLINT(clang-diagnostic-incompatible-pointer-types)
{
targetMatched = TRUE;
}
}
continue;
}
if (hasTarget && !targetMatched)
return TRUE;
if (!LoadLibraryA(line))
{
MessageBoxA(NULL, line, PROJECT_NAME" - Failed to load library", ErrBoxType);

58
VersionShim/util.c
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@ -6,22 +6,22 @@
#include "pch.h"
BOOL OpenFileRead(const LPCSTR lpFileName, HANDLE* fileHandle)
static BOOL OpenFileRead(CONST LPCSTR lpFileName, CONST LPHANDLE fileHandle)
{
OFSTRUCT ofStruct = { 0 };
OFSTRUCT ofStruct;
HFILE hFile = OpenFile(lpFileName, &ofStruct, OF_READ | OF_PROMPT);
*fileHandle = (HANDLE)(INT_PTR)hFile;
*fileHandle = (HANDLE)(INT_PTR)hFile; // NOLINT(performance-no-int-to-ptr)
return hFile != HFILE_ERROR;
}
BOOL ReadFileUtf8(const HANDLE fileHandle, LPCH* fileString, DWORD* fileLength)
static BOOL ReadFileUtf8(CONST HANDLE fileHandle, LPSTR* fileString, CONST LPDWORD fileLength)
{
DWORD fileLen = GetFileSize(fileHandle, NULL);
*fileLength = fileLen;
HANDLE heap = GetProcessHeap();
LPCH buffer = HeapAlloc(heap, 0, fileLen + 1);
LPSTR buffer = HeapAlloc(heap, 0, fileLen + 1);
if (!buffer)
return FALSE;
@ -37,7 +37,7 @@ BOOL ReadFileUtf8(const HANDLE fileHandle, LPCH* fileString, DWORD* fileLength)
return TRUE;
}
BOOL OpenReadFileUtf8(const LPCSTR lpFileName, LPCH* fileString, DWORD* fileLength)
BOOL OpenReadFileUtf8(CONST LPCSTR lpFileName, LPSTR* fileString, CONST LPDWORD fileLength)
{
HANDLE hFile = NULL;
if (!OpenFileRead(lpFileName, &hFile))
@ -49,19 +49,45 @@ BOOL OpenReadFileUtf8(const LPCSTR lpFileName, LPCH* fileString, DWORD* fileLeng
return success;
}
INT TerminateLineCrlf(const LPCH fileString)
BOOL StrEndsWith(CONST LPSTR str, CONST LPSTR target)
{
for (INT i = 0; ; i++)
{
if (fileString[i] == '\r' &&
fileString[i + 1] == '\n')
{
fileString[i] = fileString[i + 1] = '\0';
}
DWORD strLen = lstrlenA(str), targetLen = lstrlenA(target);
if (fileString[i] == '\0')
if (strLen < targetLen)
return FALSE;
return lstrcmpA(str + strLen - targetLen, target) == 0;
}
LPSTR SkipBomUtf8(CONST LPSTR str)
{
if (str[0] == (char)0xEF
&& str[1] == (char)0xBB
&& str[2] == (char)0xBF)
{
return str + 3;
}
return str;
}
INT TerminateLine(CONST LPSTR str)
{
for (INT i = 0;; i++)
{
if (str[i] == '\0')
return i + 1;
if (str[i] == '\r' || str[i] == '\n')
{
return i;
str[i] = '\0';
if (str[i + 1] == '\n')
{
str[++i] = '\0';
}
return i + 1;
}
}
}

6
VersionShim/util.h
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@ -2,5 +2,7 @@
UINT ErrBoxType = MB_ICONERROR | MB_TOPMOST;
BOOL OpenReadFileUtf8(LPCSTR lpFileName, LPCH* fileBuffer, DWORD* fileLength);
INT TerminateLineCrlf(LPCH fileString);
BOOL OpenReadFileUtf8(LPCSTR lpFileName, LPSTR* fileBuffer, LPDWORD fileLength);
BOOL StrEndsWith(LPSTR str, LPSTR target);
LPSTR SkipBomUtf8(LPSTR str);
INT TerminateLine(LPSTR str);