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#include "stdafx.h"
#ifndef FACILITY_VISUALCPP
#define FACILITY_VISUALCPP ((LONG)0x6d)
#endif
static PVOID exchndlr, exchndlrv;
static pfnExceptionFilter threadfltr;
static PEXCEPTION_POINTERS lastptr;
void SetExceptionHandler(void)
{
exchndlr = SetUnhandledExceptionFilter(myfilter);
}
void RemoveExceptionHandler(void)
{
if (exchndlrv)
RemoveVectoredExceptionHandler(exchndlrv);
SetUnhandledExceptionFilter((LPTOP_LEVEL_EXCEPTION_FILTER)exchndlr);
exchndlr = nullptr;
exchndlrv = nullptr;
}
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, "dbghelp.dll v.5.0 or later required to provide a crash report\n");
off += mir_snprintf(str + off, _countof(str) - off, "Missing Module: %s ", dlld->szDll);
if (dlld->dlp.fImportByName)
mir_snprintf(str + off, _countof(str) - off, "Function: %s ", dlld->dlp.szProcName);
else
mir_snprintf(str + off, _countof(str) - off, "Ordinal: %x ", dlld->dlp.dwOrdinal);
MessageBoxA(nullptr, str, "Miranda Crash Dumper", MB_OK | MB_ICONERROR | MB_TASKMODAL | MB_TOPMOST);
}
return EXCEPTION_EXECUTE_HANDLER;
}
void myfilterWorker(PEXCEPTION_POINTERS exc_ptr, bool notify)
{
wchar_t path[MAX_PATH];
HANDLE hDumpFile = nullptr;
SYSTEMTIME st;
GetLocalTime(&st);
CreateDirectoryTreeW(CrashLogFolder);
__try {
if (g_plugin.bUseSubFolder) {
mir_snwprintf(path, L"%s\\%02d.%02d.%02d", CrashLogFolder, st.wYear, st.wMonth, st.wDay);
CreateDirectory(path, nullptr);
mir_snwprintf(path, L"%s\\%02d.%02d.%02d\\crash%02d%02d%02d%02d%02d%02d.mdmp", CrashLogFolder,
st.wYear, st.wMonth, st.wDay, st.wYear, st.wMonth, st.wDay, st.wHour, st.wMinute, st.wSecond);
}
else
mir_snwprintf(path, L"%s\\crash%02d%02d%02d%02d%02d%02d.mdmp", CrashLogFolder,
st.wYear, st.wMonth, st.wDay, st.wYear, st.wMonth, st.wDay, st.wHour, st.wMinute, st.wSecond);
hDumpFile = CreateFile(path, GENERIC_WRITE, FILE_SHARE_READ, nullptr, CREATE_NEW, FILE_ATTRIBUTE_NORMAL, nullptr);
if (hDumpFile != INVALID_HANDLE_VALUE)
CreateMiniDump(hDumpFile, exc_ptr);
else if (GetLastError() != ERROR_ALREADY_EXISTS)
MessageBox(nullptr, TranslateT("Crash Report write location is not available"), L"Miranda Crash Dumper", MB_OK | MB_ICONERROR | MB_TASKMODAL | MB_TOPMOST);
}
__except (EXCEPTION_EXECUTE_HANDLER)
{
}
bool empty = GetFileSize(hDumpFile, nullptr) == 0;
CloseHandle(hDumpFile);
if (empty)
DeleteFile(path);
__try {
if (g_plugin.bUseSubFolder) {
mir_snwprintf(path, L"%s\\%02d.%02d.%02d", CrashLogFolder, st.wYear, st.wMonth, st.wDay);
CreateDirectory(path, nullptr);
mir_snwprintf(path, L"%s\\%02d.%02d.%02d\\crash%02d%02d%02d%02d%02d%02d.txt", CrashLogFolder,
st.wYear, st.wMonth, st.wDay, st.wYear, st.wMonth, st.wDay, st.wHour, st.wMinute, st.wSecond);
}
else
mir_snwprintf(path, L"%s\\crash%02d%02d%02d%02d%02d%02d.txt", CrashLogFolder,
st.wYear, st.wMonth, st.wDay, st.wYear, st.wMonth, st.wDay, st.wHour, st.wMinute, st.wSecond);
hDumpFile = CreateFile(path, GENERIC_WRITE, FILE_SHARE_READ, nullptr, CREATE_NEW, FILE_ATTRIBUTE_NORMAL, nullptr);
mir_snwprintf(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 : nullptr);
}
__except (myDebugFilter(GetExceptionCode(), GetExceptionInformation())) {}
empty = GetFileSize(hDumpFile, nullptr) == 0;
CloseHandle(hDumpFile);
if (empty)
DeleteFile(path);
}
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);
}
void InitExceptionHandler(void)
{
threadfltr = SetExceptionFilter(MirandaThreadFilter);
SetExceptionHandler();
}
void DestroyExceptionHandler(void)
{
SetExceptionFilter(threadfltr);
RemoveExceptionHandler();
}
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