diff options
Diffstat (limited to 'win/inspircd_win32wrapper.cpp')
| -rw-r--r-- | win/inspircd_win32wrapper.cpp | 105 |
1 files changed, 104 insertions, 1 deletions
diff --git a/win/inspircd_win32wrapper.cpp b/win/inspircd_win32wrapper.cpp index ad45bb0ae..ee1d54c25 100644 --- a/win/inspircd_win32wrapper.cpp +++ b/win/inspircd_win32wrapper.cpp @@ -22,7 +22,9 @@ using namespace std; #define INADDR_NONE 0xffffffff #endif -HANDLE hIPCPipe; +/* This MUST remain static and delcared outside the class, so that WriteProcessMemory can reference it properly */ +static DWORD owner_processid = 0; + int inet_aton(const char *cp, struct in_addr *addr) { @@ -511,3 +513,104 @@ void ClearConsole() } return; } + +DWORD WindowsForkStart(InspIRCd * Instance) +{ + /* Windows implementation of fork() :P */ + if (owner_processid) + return 0; + + char module[MAX_PATH]; + if(!GetModuleFileName(NULL, module, MAX_PATH)) + { + printf("GetModuleFileName() failed.\n"); + return false; + } + + STARTUPINFO startupinfo; + PROCESS_INFORMATION procinfo; + ZeroMemory(&startupinfo, sizeof(STARTUPINFO)); + ZeroMemory(&procinfo, sizeof(PROCESS_INFORMATION)); + + // Fill in the startup info struct + GetStartupInfo(&startupinfo); + + /* Default creation flags create the processes suspended */ + DWORD startupflags = CREATE_SUSPENDED; + + /* On windows 2003/XP and above, we can use the value + * CREATE_PRESERVE_CODE_AUTHZ_LEVEL which gives more access + * to the process which we may require on these operating systems. + */ + OSVERSIONINFO vi; + vi.dwOSVersionInfoSize = sizeof(OSVERSIONINFO); + GetVersionEx(&vi); + if ((vi.dwMajorVersion >= 5) && (vi.dwMinorVersion > 0)) + startupflags |= CREATE_PRESERVE_CODE_AUTHZ_LEVEL; + + // Launch our "forked" process. + BOOL bSuccess = CreateProcess ( module, // Module (exe) filename + strdup(GetCommandLine()), // Command line (exe plus parameters from the OS) + // NOTE: We cannot return the direct value of the + // GetCommandLine function here, as the pointer is + // passed straight to the child process, and will be + // invalid once we exit as it goes out of context. + // strdup() seems ok, though. + 0, // PROCESS_SECURITY_ATTRIBUTES + 0, // THREAD_SECURITY_ATTRIBUTES + TRUE, // We went to inherit handles. + startupflags, // Allow us full access to the process and suspend it. + 0, // ENVIRONMENT + 0, // CURRENT_DIRECTORY + &startupinfo, // startup info + &procinfo); // process info + + if(!bSuccess) + { + printf("CreateProcess() error: %s\n", dlerror()); + return false; + } + + // Set the owner process id in the target process. + SIZE_T written = 0; + DWORD pid = GetCurrentProcessId(); + if(!WriteProcessMemory(procinfo.hProcess, &owner_processid, &pid, sizeof(DWORD), &written) || written != sizeof(DWORD)) + { + printf("WriteProcessMemory() failed: %s\n", dlerror()); + return false; + } + + // Resume the other thread (let it start) + ResumeThread(procinfo.hThread); + + // Wait for the new process to kill us. If there is some error, the new process will end and we will end up at the next line. + WaitForSingleObject(procinfo.hProcess, INFINITE); + + // If we hit this it means startup failed, default to 14 if this fails. + DWORD ExitCode = 14; + GetExitCodeProcess(procinfo.hProcess, &ExitCode); + CloseHandle(procinfo.hThread); + CloseHandle(procinfo.hProcess); + return ExitCode; +} + +void WindowsForkKillOwner(InspIRCd * Instance) +{ + HANDLE hProcess = OpenProcess(PROCESS_TERMINATE, FALSE, owner_processid); + if(!hProcess || !owner_processid) + { + printf("Could not open process id %u: %s.\n", owner_processid, dlerror()); + Instance->Exit(14); + } + + // die die die + if(!TerminateProcess(hProcess, 0)) + { + printf("Could not TerminateProcess(): %s\n", dlerror()); + Instance->Exit(14); + } + + CloseHandle(hProcess); +} + + |