diff options
Diffstat (limited to 'ext/detours/samples/setdll/setdll.cpp')
| -rw-r--r-- | ext/detours/samples/setdll/setdll.cpp | 332 |
1 files changed, 332 insertions, 0 deletions
diff --git a/ext/detours/samples/setdll/setdll.cpp b/ext/detours/samples/setdll/setdll.cpp new file mode 100644 index 0000000..fd39b03 --- /dev/null +++ b/ext/detours/samples/setdll/setdll.cpp @@ -0,0 +1,332 @@ +////////////////////////////////////////////////////////////////////////////// +// +// Detours Test Program (setdll.cpp of setdll.exe) +// +// Microsoft Research Detours Package +// +// Copyright (c) Microsoft Corporation. All rights reserved. +// +#include <stdio.h> +#include <stdlib.h> +#include <windows.h> +#include <shellapi.h> +#include <detours.h> +#pragma warning(push) +#if _MSC_VER > 1400 +#pragma warning(disable:6102 6103) // /analyze warnings +#endif +#include <strsafe.h> +#pragma warning(pop) + +////////////////////////////////////////////////////////////// Error Messages. +// +VOID AssertMessage(PCSTR szMsg, PCSTR szFile, DWORD nLine) +{ + printf("ASSERT(%s) failed in %s, line %ld.", szMsg, szFile, nLine); +} + +#define ASSERT(x) \ +do { if (!(x)) { AssertMessage(#x, __FILE__, __LINE__); DebugBreak(); }} while (0) + ; + + +////////////////////////////////////////////////////////////////////////////// +// +static BOOLEAN s_fRemove = FALSE; +static CHAR s_szDllPath[MAX_PATH] = ""; + +////////////////////////////////////////////////////////////////////////////// +// +// This code verifies that the named DLL has been configured correctly +// to be imported into the target process. DLLs must export a function with +// ordinal #1 so that the import table touch-up magic works. +// +static BOOL CALLBACK ExportCallback(_In_opt_ PVOID pContext, + _In_ ULONG nOrdinal, + _In_opt_ LPCSTR pszName, + _In_opt_ PVOID pCode) +{ + (void)pContext; + (void)pCode; + (void)pszName; + + if (nOrdinal == 1) { + *((BOOL *)pContext) = TRUE; + } + return TRUE; +} + +BOOL DoesDllExportOrdinal1(PCHAR pszDllPath) +{ + HMODULE hDll = LoadLibraryExA(pszDllPath, NULL, DONT_RESOLVE_DLL_REFERENCES); + if (hDll == NULL) { + printf("setdll.exe: LoadLibraryEx(%s) failed with error %ld.\n", + pszDllPath, + GetLastError()); + return FALSE; + } + + BOOL validFlag = FALSE; + DetourEnumerateExports(hDll, &validFlag, ExportCallback); + FreeLibrary(hDll); + return validFlag; +} + +////////////////////////////////////////////////////////////////////////////// +// +static BOOL CALLBACK ListBywayCallback(_In_opt_ PVOID pContext, + _In_opt_ LPCSTR pszFile, + _Outptr_result_maybenull_ LPCSTR *ppszOutFile) +{ + (void)pContext; + + *ppszOutFile = pszFile; + if (pszFile) { + printf(" %s\n", pszFile); + } + return TRUE; +} + +static BOOL CALLBACK ListFileCallback(_In_opt_ PVOID pContext, + _In_ LPCSTR pszOrigFile, + _In_ LPCSTR pszFile, + _Outptr_result_maybenull_ LPCSTR *ppszOutFile) +{ + (void)pContext; + + *ppszOutFile = pszFile; + printf(" %s -> %s\n", pszOrigFile, pszFile); + return TRUE; +} + +static BOOL CALLBACK AddBywayCallback(_In_opt_ PVOID pContext, + _In_opt_ LPCSTR pszFile, + _Outptr_result_maybenull_ LPCSTR *ppszOutFile) +{ + PBOOL pbAddedDll = (PBOOL)pContext; + if (!pszFile && !*pbAddedDll) { // Add new byway. + *pbAddedDll = TRUE; + *ppszOutFile = s_szDllPath; + } + return TRUE; +} + +BOOL SetFile(PCHAR pszPath) +{ + BOOL bGood = TRUE; + HANDLE hOld = INVALID_HANDLE_VALUE; + HANDLE hNew = INVALID_HANDLE_VALUE; + PDETOUR_BINARY pBinary = NULL; + + CHAR szOrg[MAX_PATH]; + CHAR szNew[MAX_PATH]; + CHAR szOld[MAX_PATH]; + + szOld[0] = '\0'; + szNew[0] = '\0'; + + StringCchCopyA(szOrg, sizeof(szOrg), pszPath); + StringCchCopyA(szNew, sizeof(szNew), szOrg); + StringCchCatA(szNew, sizeof(szNew), "#"); + StringCchCopyA(szOld, sizeof(szOld), szOrg); + StringCchCatA(szOld, sizeof(szOld), "~"); + printf(" %s:\n", pszPath); + + hOld = CreateFileA(szOrg, + GENERIC_READ, + FILE_SHARE_READ, + NULL, + OPEN_EXISTING, + FILE_ATTRIBUTE_NORMAL, + NULL); + + if (hOld == INVALID_HANDLE_VALUE) { + printf("Couldn't open input file: %s, error: %ld\n", + szOrg, GetLastError()); + bGood = FALSE; + goto end; + } + + hNew = CreateFileA(szNew, + GENERIC_WRITE | GENERIC_READ, 0, NULL, CREATE_ALWAYS, + FILE_ATTRIBUTE_NORMAL | FILE_FLAG_SEQUENTIAL_SCAN, NULL); + if (hNew == INVALID_HANDLE_VALUE) { + printf("Couldn't open output file: %s, error: %ld\n", + szNew, GetLastError()); + bGood = FALSE; + goto end; + } + + if ((pBinary = DetourBinaryOpen(hOld)) == NULL) { + printf("DetourBinaryOpen failed: %ld\n", GetLastError()); + goto end; + } + + if (hOld != INVALID_HANDLE_VALUE) { + CloseHandle(hOld); + hOld = INVALID_HANDLE_VALUE; + } + + { + BOOL bAddedDll = FALSE; + + DetourBinaryResetImports(pBinary); + + if (!s_fRemove) { + if (!DetourBinaryEditImports(pBinary, + &bAddedDll, + AddBywayCallback, NULL, NULL, NULL)) { + printf("DetourBinaryEditImports failed: %ld\n", GetLastError()); + } + } + + if (!DetourBinaryEditImports(pBinary, NULL, + ListBywayCallback, ListFileCallback, + NULL, NULL)) { + + printf("DetourBinaryEditImports failed: %ld\n", GetLastError()); + } + + if (!DetourBinaryWrite(pBinary, hNew)) { + printf("DetourBinaryWrite failed: %ld\n", GetLastError()); + bGood = FALSE; + } + + DetourBinaryClose(pBinary); + pBinary = NULL; + + if (hNew != INVALID_HANDLE_VALUE) { + CloseHandle(hNew); + hNew = INVALID_HANDLE_VALUE; + } + + if (bGood) { + if (!DeleteFileA(szOld)) { + DWORD dwError = GetLastError(); + if (dwError != ERROR_FILE_NOT_FOUND) { + printf("Warning: Couldn't delete %s: %ld\n", szOld, dwError); + bGood = FALSE; + } + } + if (!MoveFileA(szOrg, szOld)) { + printf("Error: Couldn't back up %s to %s: %ld\n", + szOrg, szOld, GetLastError()); + bGood = FALSE; + } + if (!MoveFileA(szNew, szOrg)) { + printf("Error: Couldn't install %s as %s: %ld\n", + szNew, szOrg, GetLastError()); + bGood = FALSE; + } + } + + DeleteFileA(szNew); + } + + + end: + if (pBinary) { + DetourBinaryClose(pBinary); + pBinary = NULL; + } + if (hNew != INVALID_HANDLE_VALUE) { + CloseHandle(hNew); + hNew = INVALID_HANDLE_VALUE; + } + if (hOld != INVALID_HANDLE_VALUE) { + CloseHandle(hOld); + hOld = INVALID_HANDLE_VALUE; + } + return bGood; +} + +////////////////////////////////////////////////////////////////////////////// +// +void PrintUsage(void) +{ + printf("Usage:\n" + " setdll [options] binary_files\n" + "Options:\n" + " /d:file.dll : Add file.dll binary files\n" + " /r : Remove extra DLLs from binary files\n" + " /? : This help screen.\n"); +} + +//////////////////////////////////////////////////////////////////////// main. +// +int CDECL main(int argc, char **argv) +{ + BOOL fNeedHelp = FALSE; + PCHAR pszFilePart = NULL; + + int arg = 1; + for (; arg < argc; arg++) { + if (argv[arg][0] == '-' || argv[arg][0] == '/') { + CHAR *argn = argv[arg] + 1; + CHAR *argp = argn; + while (*argp && *argp != ':' && *argp != '=') + argp++; + if (*argp == ':' || *argp == '=') + *argp++ = '\0'; + + switch (argn[0]) { + + case 'd': // Set DLL + case 'D': + if ((strchr(argp, ':') != NULL || strchr(argp, '\\') != NULL) && + GetFullPathNameA(argp, sizeof(s_szDllPath), s_szDllPath, &pszFilePart)) { + } + else { + StringCchPrintfA(s_szDllPath, sizeof(s_szDllPath), "%s", argp); + } + break; + + case 'r': // Remove extra set DLLs. + case 'R': + s_fRemove = TRUE; + break; + + case '?': // Help + fNeedHelp = TRUE; + break; + + default: + fNeedHelp = TRUE; + printf("Bad argument: %s:%s\n", argn, argp); + break; + } + } + } + if (argc == 1) { + fNeedHelp = TRUE; + } + if (!s_fRemove && s_szDllPath[0] == 0) { + fNeedHelp = TRUE; + } + if (fNeedHelp) { + PrintUsage(); + return 1; + } + + + if (s_fRemove) { + printf("Removing extra DLLs from binary files.\n"); + } + else { + if (!DoesDllExportOrdinal1(s_szDllPath)) { + printf("Error: %hs does not export function with ordinal #1.\n", + s_szDllPath); + return 2; + } + printf("Adding %hs to binary files.\n", s_szDllPath); + } + + for (arg = 1; arg < argc; arg++) { + if (argv[arg][0] != '-' && argv[arg][0] != '/') { + SetFile(argv[arg]); + } + } + return 0; +} + +// End of File |