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#include "utils.h"
#include "crtdbg.h"
static PVOID exchndlr, exchndlrv;
static pfnExceptionFilter threadfltr;
static PEXCEPTION_POINTERS lastptr;
static HMODULE hKernel = GetModuleHandle(TEXT("kernel32.dll"));
tAddVectoredExceptionHandler pAddVectoredExceptionHandler = (tAddVectoredExceptionHandler)GetProcAddress(hKernel, "AddVectoredExceptionHandler");
tRemoveVectoredExceptionHandler pRemoveVectoredExceptionHandler = (tRemoveVectoredExceptionHandler)GetProcAddress(hKernel, "RemoveVectoredExceptionHandler");
tRtlCaptureContext pRtlCaptureContext = (tRtlCaptureContext)GetProcAddress(hKernel, "RtlCaptureContext");
void SetExceptionHandler(void)
{
// if (pAddVectoredExceptionHandler && !exchndlrv)
// exchndlrv = pAddVectoredExceptionHandler(0, myfilterv);
/*exchndlr = */ SetUnhandledExceptionFilter(myfilter);
}
void RemoveExceptionHandler(void)
{
if (pRemoveVectoredExceptionHandler && exchndlrv)
pRemoveVectoredExceptionHandler(exchndlrv);
SetUnhandledExceptionFilter((LPTOP_LEVEL_EXCEPTION_FILTER)exchndlr);
exchndlr = NULL;
exchndlrv = NULL;
}
void UnloadDbgHlp(void)
{
#ifdef _MSC_VER
#if _MSC_VER > 1200
__FUnloadDelayLoadedDLL2("dbghelp.dll");
#else
__FUnloadDelayLoadedDLL("dbghelp.dll");
#endif
#endif
}
int myDebugFilter(unsigned int code, PEXCEPTION_POINTERS ep)
{
if (code == VcppException(ERROR_SEVERITY_ERROR, ERROR_MOD_NOT_FOUND) ||
code == VcppException(ERROR_SEVERITY_ERROR, ERROR_PROC_NOT_FOUND))
{
PDelayLoadInfo dlld = (PDelayLoadInfo)ep->ExceptionRecord->ExceptionInformation[0];
char str[256];
int off = mir_snprintf(str, SIZEOF(str), "dbghelp.dll v.5.0 or later required to provide a crash report\n");
off += mir_snprintf(str+off, SIZEOF(str)-off, "Missing Module: %s ", dlld->szDll);
if (dlld->dlp.fImportByName)
mir_snprintf(str+off, SIZEOF(str)-off, "Function: %s ", dlld->dlp.szProcName);
else
mir_snprintf(str+off, SIZEOF(str)-off, "Ordinal: %x ", dlld->dlp.dwOrdinal);
MessageBoxA(NULL, str, "Miranda Crash Dumper", MB_OK | MB_ICONERROR | MB_TASKMODAL | MB_TOPMOST);
}
return EXCEPTION_EXECUTE_HANDLER;
}
void myfilterWorker(PEXCEPTION_POINTERS exc_ptr, bool notify)
{
TCHAR path[MAX_PATH];
SYSTEMTIME st;
HANDLE hDumpFile = NULL;
GetLocalTime(&st);
CreateDirectoryTree(CrashLogFolder);
__try
{
crs_sntprintf(path, MAX_PATH, TEXT("%s\\crash%02d%02d%02d%02d%02d%02d.mdmp"), CrashLogFolder,
st.wYear, st.wMonth, st.wDay, st.wHour, st.wMinute, st.wSecond);
hDumpFile = CreateFile(path, GENERIC_WRITE, FILE_SHARE_READ, NULL, CREATE_NEW, FILE_ATTRIBUTE_NORMAL, NULL);
if (hDumpFile != INVALID_HANDLE_VALUE)
CreateMiniDump(hDumpFile, exc_ptr);
else if (GetLastError() != ERROR_ALREADY_EXISTS)
MessageBox(NULL, TranslateT("Crash Report write location is inaccesible"),
TEXT("Miranda Crash Dumper"), MB_OK | MB_ICONERROR | MB_TASKMODAL | MB_TOPMOST);
}
__except(EXCEPTION_EXECUTE_HANDLER) {}
bool empty = GetFileSize(hDumpFile, NULL) == 0;
CloseHandle(hDumpFile);
if (empty) DeleteFile(path);
__try
{
crs_sntprintf(path, MAX_PATH, TEXT("%s\\crash%02d%02d%02d%02d%02d%02d.txt"), CrashLogFolder,
st.wYear, st.wMonth, st.wDay, st.wHour, st.wMinute, st.wSecond);
hDumpFile = CreateFile(path, GENERIC_WRITE, FILE_SHARE_READ, NULL, CREATE_NEW, FILE_ATTRIBUTE_NORMAL, NULL);
crs_sntprintf(path, MAX_PATH, TranslateT("Miranda crashed. Crash report stored in the folder:\n %s\n\n Would you like store it in the clipboard as well?"), CrashLogFolder);
if (hDumpFile != INVALID_HANDLE_VALUE)
CreateCrashReport(hDumpFile, exc_ptr, notify ? path : NULL);
}
__except(myDebugFilter(GetExceptionCode(), GetExceptionInformation())) {}
bool empty1 = GetFileSize(hDumpFile, NULL) == 0;
CloseHandle(hDumpFile);
if (empty1) DeleteFile(path);
UnloadDbgHlp();
}
LONG WINAPI myfilter(PEXCEPTION_POINTERS exc_ptr)
{
if (exc_ptr == lastptr) return EXCEPTION_EXECUTE_HANDLER;
lastptr = exc_ptr;
myfilterWorker(exc_ptr, true);
return exchndlr ? ((LPTOP_LEVEL_EXCEPTION_FILTER)exchndlr)(exc_ptr) : EXCEPTION_CONTINUE_SEARCH;
}
LONG WINAPI myfilterv(PEXCEPTION_POINTERS exc_ptr)
{
if (0xC0000000L <= exc_ptr->ExceptionRecord->ExceptionCode && 0xC0000500L >= exc_ptr->ExceptionRecord->ExceptionCode)
{
if (exc_ptr == lastptr) return EXCEPTION_EXECUTE_HANDLER;
lastptr = exc_ptr;
myfilterWorker(exc_ptr, true);
}
return EXCEPTION_CONTINUE_SEARCH;
}
DWORD MirandaThreadFilter(DWORD code, EXCEPTION_POINTERS* info)
{
if (info != lastptr)
{
lastptr = info;
myfilterWorker(info, true);
}
return threadfltr(code, info);
}
#if _MSC_VER >= 1400
void InvalidParameterHandler(const wchar_t*, const wchar_t*, const wchar_t*, unsigned int, UINT_PTR)
{
EXCEPTION_RECORD ExceptionRecord = {0};
CONTEXT ContextRecord = {0};
EXCEPTION_POINTERS info = { &ExceptionRecord, &ContextRecord };
if (pRtlCaptureContext)
pRtlCaptureContext(&ContextRecord);
else
{
ContextRecord.ContextFlags = CONTEXT_ALL;
GetThreadContext(GetCurrentThread(), &ContextRecord);
}
#if defined(_AMD64_)
ExceptionRecord.ExceptionAddress = (PVOID)ContextRecord.Rip;
#elif defined(_IA64_)
ExceptionRecord.ExceptionAddress = (PVOID)ContextRecord.BrRp;
#else
ExceptionRecord.ExceptionAddress = (PVOID)ContextRecord.Eip;
#endif
ExceptionRecord.ExceptionCode = STATUS_INVALID_CRUNTIME_PARAMETER;
ExceptionRecord.ExceptionFlags = EXCEPTION_NONCONTINUABLE;
myfilterWorker(&info, true);
}
#endif
void InitExceptionHandler(void)
{
#if _MSC_VER >= 1400
_set_invalid_parameter_handler(InvalidParameterHandler);
#endif
threadfltr = Miranda_SetExceptFilter(MirandaThreadFilter);
SetExceptionHandler();
}
void DestroyExceptionHandler(void)
{
Miranda_SetExceptFilter(threadfltr);
RemoveExceptionHandler();
}
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