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I tried to write a code that uses CreateProcess() to execute CMD commands and will redirect the stdout to a named pipe. I wanted to add a functionality to spoof the Parent PID so that the cmd will spawn under explorer.exe. Each of the functionalities works on it's own but when I tried to merge them it will not work.
The stdout routing:
int main()
{
HANDLE hStdout_Rd = NULL;
HANDLE hStdout_Wr = NULL;
SECURITY_ATTRIBUTES saAttr;
saAttr.nLength = sizeof(SECURITY_ATTRIBUTES);
saAttr.bInheritHandle = TRUE;
saAttr.lpSecurityDescriptor = NULL;
CreatePipe(&hStdout_Rd, &hStdout_Wr, &saAttr, NULL);
SetHandleInformation(hStdout_Rd, HANDLE_FLAG_INHERIT, 0);
//Set startup info
STARTUPINFO si;
ZeroMemory(&si, (sizeof(STARTUPINFO)));
si.cb = sizeof(STARTUPINFO);
si.dwFlags = STARTF_USESHOWWINDOW | STARTF_USESTDHANDLES;
si.hStdError = hStdout_Wr;
si.hStdOutput = hStdout_Wr;
si.wShowWindow = SW_HIDE;
PROCESS_INFORMATION pi;
ZeroMemory(&pi, sizeof(PROCESS_INFORMATION));
CString cmd;
if (CreateProcess(NULL, cmd.GetBuffer(), NULL, NULL, TRUE, 0, NULL, NULL, &si, &pi))
{
//Great success read pipe contents
}
CloseHandle(hStdout_Rd);
CloseHandle(hStdout_Wr);
}
The PPID Spoof:
int main() {
CString cmd;
STARTUPINFOEXA sInfoEX;
PROCESS_INFORMATION pInfo;
SIZE_T sizeT;
HANDLE expHandle = OpenProcess(PROCESS_ALL_ACCESS, false, getParentProcessID());
ZeroMemory(&sInfoEX, sizeof(STARTUPINFOEXA));
InitializeProcThreadAttributeList(NULL, 1, 0, &sizeT);
sInfoEX.lpAttributeList = (LPPROC_THREAD_ATTRIBUTE_LIST)HeapAlloc(GetProcessHeap(), 0, sizeT);
InitializeProcThreadAttributeList(sInfoEX.lpAttributeList, 1, 0, &sizeT);
UpdateProcThreadAttribute(sInfoEX.lpAttributeList, 0, PROC_THREAD_ATTRIBUTE_PARENT_PROCESS, &expHandle, sizeof(HANDLE), NULL, NULL);
sInfoEX.StartupInfo.cb = sizeof(STARTUPINFOEXA);
CreateProcessA(NULL, cmd.GetBuffer(), NULL, NULL, TRUE, CREATE_SUSPENDED | CREATE_NO_WINDOW | EXTENDED_STARTUPINFO_PRESENT, NULL, NULL, reinterpret_cast<LPSTARTUPINFOA>(&sInfoEX), &pInfo);
return 0;
}
All Together:
int main() {
HANDLE hStdout_Rd = NULL;
HANDLE hStdout_Wr = NULL;
SECURITY_ATTRIBUTES saAttr;
saAttr.nLength = sizeof(SECURITY_ATTRIBUTES);
saAttr.bInheritHandle = TRUE;
saAttr.lpSecurityDescriptor = NULL;
CString cmd;
STARTUPINFOEXA sInfoEX;
PROCESS_INFORMATION pInfo;
ZeroMemory(&pInfo, sizeof(PROCESS_INFORMATION));
SIZE_T sizeT;
HANDLE expHandle = OpenProcess(PROCESS_ALL_ACCESS, false, getParentProcessID());
ZeroMemory(&sInfoEX, sizeof(STARTUPINFOEXA));
sInfoEX.StartupInfo = sizeof(STARTUPINFO);
sInfoEX.StartupInfo = STARTF_USESHOWWINDOW | STARTF_USESTDHANDLES;
sInfoEX.StartupInfo = hStdout_Wr;
sInfoEX.StartupInfo = hStdout_Wr;
sInfoEX.StartupInfo = SW_HIDE;
InitializeProcThreadAttributeList(NULL, 1, 0, &sizeT);
sInfoEX.lpAttributeList = (LPPROC_THREAD_ATTRIBUTE_LIST)HeapAlloc(GetProcessHeap(), 0, sizeT);
InitializeProcThreadAttributeList(sInfoEX.lpAttributeList, 1, 0, &sizeT);
UpdateProcThreadAttribute(sInfoEX.lpAttributeList, 0, PROC_THREAD_ATTRIBUTE_PARENT_PROCESS, &expHandle, sizeof(HANDLE), NULL, NULL);
sInfoEX.StartupInfo.cb = sizeof(STARTUPINFOEXA);
if (CreateProcessA(NULL, cmd.GetBuffer(), NULL, NULL, TRUE, CREATE_SUSPENDED | CREATE_NO_WINDOW | EXTENDED_STARTUPINFO_PRESENT, NULL, NULL, reinterpret_cast<LPSTARTUPINFOA>(&sInfoEX), &pInfo))
{
//Read pipe contents
}
return 0;
}
Is there anything I'm missing?
I'm coding a WinAPI GUI program that needs calling ftp and possibly other console programs while getting their console output to act accordingly ie. waiting for ftp to complete execution before reading all its output wouldn't do.
My current approach is calling CreateProcess() to create a cmd.exe process potentially hiding the ugly console window, AttachConsole() to make it my own, GetStdHandle() to get input and output handles, SetConsoleCursorPosition() to the end of the console buffer, and WriteConsole() with commands such as ftp\n or dir\n. Yet this commands are written but not executed. However, I can manually use the same console ( using CreateProcess() with CREATE_NEW_CONSOLE flag ) to type ftp press enter and get it executed.
Previous approaches involved:
Calling ftp directly with CreateProcess() and redirected inputs/outputs.
Couldn't get ftp output until the CreateProcess() process had already ended.
Using system().
Was advised against its usage before getting any output.
My current stripped down code:
// Next two structures might be a bit misleading, they were used for the 1. previous
// approach
PROCESS_INFORMATION piProcInfo;
ZeroMemory( &piProcInfo, sizeof(PROCESS_INFORMATION));
STARTUPINFO siStartInfo;
ZeroMemory( &siStartInfo, sizeof(STARTUPINFO) );
siStartInfo.cb = sizeof(STARTUPINFO);
siStartInfo.hStdError = g_hChildStd_OUT_Wr;
siStartInfo.hStdOutput = g_hChildStd_OUT_Wr;
siStartInfo.hStdInput = g_hChildStd_IN_Rd;
siStartInfo.dwFlags |= STARTF_USESTDHANDLES;
SECURITY_ATTRIBUTES security;
security.nLength = sizeof(SECURITY_ATTRIBUTES);
security.lpSecurityDescriptor = NULL;
security.bInheritHandle = FALSE;
CreateProcess( NULL, "cmd", &security, &security, FALSE, NORMAL_PRIORITY_CLASS |
CREATE_NEW_CONSOLE, NULL, NULL, &siStartInfo, &piProcInfo);
uint32_t pidConsole = piProcInfo.dwProcessId;
while ( ! AttachConsole(pidConsole) ){};
HANDLE myConsoleIn, myConsoleOut;
myConsoleIn = GetStdHandle(STD_INPUT_HANDLE);
myConsoleOut = GetStdHandle(STD_OUTPUT_HANDLE);
Sleep(100);
CONSOLE_SCREEN_BUFFER_INFO myConsoleCursorInformation = {};
GetConsoleScreenBufferInfo(myConsoleOut,&myConsoleCursorInformation);
SetConsoleCursorPosition(myConsoleOut,myConsoleCursorInformation.dwSize);
CHAR myConsoleBuffer[200]="dir\n";
DWORD myConsoleProcessed;
WriteConsole( myConsoleOut, myConsoleBuffer, 4, &myConsoleProcessed, NULL);
How can I get a command written in the console to execute? Is there an alternative to my attempt of ending commands with a trailing \n ie. using WriteConsole() with a dir\n or ftp\n argument.
I thought about sending a keypress to the process in question after typing the desired command. Yet the created console needs not only to manually press the enter key but also having dir, ftp or whatever command to be manually typed.
Please feel free to point out any missing information !
How can I get a command written in the console to execute? Is there an
alternative to my attempt of ending commands with a trailing \n ie.
using WriteConsole() with a dir\n or ftp\n argument.
Try the following code to see if it works:
STARTUPINFO si;
PROCESS_INFORMATION pi;
ZeroMemory(&si, sizeof(si));
si.cb = sizeof(si);
ZeroMemory(&pi, sizeof(pi));
const wchar_t *cmdPath = L"C:\\Windows\\System32\\cmd.exe";
wchar_t *cmdArgs = (wchar_t *)L"C:\\Windows\\System32\\cmd.exe /k dir";
BOOL result = CreateProcess(cmdPath, cmdArgs, NULL, NULL, FALSE, 0, NULL, NULL, &si, &pi);
DWORD errCode = GetLastError();
if (!result)
{
std::cout << "Create Process failed: " << GetLastError() << std::endl;
}
/K Run Command and then return to the CMD prompt.
This is useful for testing, to examine variables
Use /C if you want "Run Command and then terminate".
Update: Complete code for communicating with a child process(cmd.exe) using pipes.
HANDLE g_hChildStd_IN_Rd = NULL;
HANDLE g_hChildStd_IN_Wr = NULL;
HANDLE g_hChildStd_OUT_Rd = NULL;
HANDLE g_hChildStd_OUT_Wr = NULL;
#define BUFSIZE 1024
void ErrorExit(LPCTSTR lpszFunction)
{
LPVOID lpMsgBuf;
LPVOID lpDisplayBuf;
DWORD dw = GetLastError();
FormatMessage(
FORMAT_MESSAGE_ALLOCATE_BUFFER |
FORMAT_MESSAGE_FROM_SYSTEM |
FORMAT_MESSAGE_IGNORE_INSERTS,
NULL,
dw,
MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
(LPTSTR)&lpMsgBuf,
0, NULL);
lpDisplayBuf = (LPVOID)LocalAlloc(LMEM_ZEROINIT,
(lstrlen((LPCTSTR)lpMsgBuf) + lstrlen((LPCTSTR)lpszFunction) + 40) * sizeof(TCHAR));
StringCchPrintf((LPTSTR)lpDisplayBuf,
LocalSize(lpDisplayBuf) / sizeof(TCHAR),
TEXT("%s failed with error %d: %s"),
lpszFunction, dw, lpMsgBuf);
MessageBox(NULL, (LPCTSTR)lpDisplayBuf, TEXT("Error"), MB_OK);
LocalFree(lpMsgBuf);
LocalFree(lpDisplayBuf);
ExitProcess(1);
}
void ReadFromPipe(void)
{
DWORD dwRead, dwWritten;
CHAR chBuf[BUFSIZE];
BOOL bSuccess = FALSE;
HANDLE hParentStdOut = GetStdHandle(STD_OUTPUT_HANDLE);
for (;;)
{
DWORD bytesAvail = 0;
if (!PeekNamedPipe(g_hChildStd_OUT_Rd, NULL, 0, NULL, &bytesAvail, NULL)) {
std::cout << "Failed to call PeekNamedPipe" << std::endl;
}
if (bytesAvail) {
DWORD n;
BOOL success = ReadFile(g_hChildStd_OUT_Rd, chBuf, BUFSIZE, &n, NULL);
if (!success || n == 0) {
}
bSuccess = WriteFile(hParentStdOut, chBuf,n, &dwWritten, NULL);
}
else
{
break;
}
}
}
void WriteToPipe(void)
{
DWORD dwWritten;
BOOL bSuccess = FALSE;
CHAR buf[] = "dir\n";
bSuccess = WriteFile(g_hChildStd_IN_Wr, buf, sizeof(buf)-1, &dwWritten, NULL);
}
int main()
{
STARTUPINFO si;
PROCESS_INFORMATION pi;
SECURITY_ATTRIBUTES saAttr;
printf("\n->Start of parent execution.\n");
// Set the bInheritHandle flag so pipe handles are inherited.
saAttr.nLength = sizeof(SECURITY_ATTRIBUTES);
saAttr.bInheritHandle = TRUE;
saAttr.lpSecurityDescriptor = NULL;
// Create a pipe for the child process's STDOUT.
if (!CreatePipe(&g_hChildStd_OUT_Rd, &g_hChildStd_OUT_Wr, &saAttr, 0))
ErrorExit(TEXT("StdoutRd CreatePipe"));
// Ensure the read handle to the pipe for STDOUT is not inherited.
if (!SetHandleInformation(g_hChildStd_OUT_Rd, HANDLE_FLAG_INHERIT, 0))
ErrorExit(TEXT("Stdout SetHandleInformation"));
// Create a pipe for the child process's STDIN.
if (!CreatePipe(&g_hChildStd_IN_Rd, &g_hChildStd_IN_Wr, &saAttr, 0))
ErrorExit(TEXT("Stdin CreatePipe"));
// Ensure the write handle to the pipe for STDIN is not inherited.
if (!SetHandleInformation(g_hChildStd_IN_Wr, HANDLE_FLAG_INHERIT, 0))
ErrorExit(TEXT("Stdin SetHandleInformation"));
ZeroMemory(&si, sizeof(si));
si.cb = sizeof(si);
ZeroMemory(&pi, sizeof(pi));
si.cb = sizeof(STARTUPINFO);
si.hStdError = g_hChildStd_OUT_Wr;
si.hStdOutput = g_hChildStd_OUT_Wr;
si.hStdInput = g_hChildStd_IN_Rd;
si.dwFlags |= STARTF_USESTDHANDLES;
TCHAR cmdPath[] = TEXT("C:\\Windows\\System32\\cmd.exe");
BOOL result = CreateProcess(cmdPath, NULL, NULL, NULL, TRUE, 0, NULL, NULL, &si, &pi);
DWORD errCode = GetLastError();
if (!result)
{
std::cout << "Create Process failed: " << GetLastError() << std::endl;
}
for (;;)
{
ReadFromPipe();
WriteToPipe();
}
}
When I pass the ipconfig command to the process, it stores the correct results in files.
char cmd[] = "C:\\windows\\system32\\cmd.exe /c ipconfig";
SaveResult("ipconfig1.txt", NULL, cmd);
char appName[] = "C:\\windows\\system32\\cmd.exe";
char cmd2[] = "/c ipconfig";
SaveResult("ipconfig2.txt", appName, cmd2);
But when i pass wuauclt or telnet
char cmd1[] = "C:\\windows\\system32\\cmd.exe /c telnet";
SaveResult("telnet1.txt", NULL, cmd1);
char appName3[] = "C:\\windows\\system32\\cmd.exe";
char cmd3[] = "/c telnet";
SaveResult("telnet2.txt", appName3, cmd3);
char cmd4[] = "C:\\windows\\system32\\cmd.exe /c wuauclt";
SaveResult("wuauclt1.txt", NULL, cmd4);
char appName5[] = "C:\\windows\\system32\\cmd.exe";
char cmd5[] = "/c wuauclt";
SaveResult("wuauclt2.txt", appName5, cmd5);
I get
'wuauclt' is not recognized as an internal or external command,
operable program or batch file.
'telnet' is not recognized as an internal or external command,
operable program or batch file.
How to fix this problem and why it happens? Do it possible to launch through cmd.exe telnet or wuauclt?
Also on this PC wuauclt and telnet in common console opened from start working like expected.
#include "stdafx.h"
#include "windows.h"
wchar_t *convertCharArrayToLPCWSTR(const char* charArray)
{
wchar_t* wString = new wchar_t[4096];
MultiByteToWideChar(CP_ACP, 0, charArray, -1, wString, 4096);
return wString;
}
void SaveResult(const char *fileName, const char *appName, const char *commandLine)
{
SECURITY_ATTRIBUTES sa;
sa.nLength = sizeof(sa);
sa.lpSecurityDescriptor = NULL;
sa.bInheritHandle = TRUE;
HANDLE h = CreateFile(convertCharArrayToLPCWSTR(fileName),
FILE_APPEND_DATA,
FILE_SHARE_WRITE | FILE_SHARE_READ,
&sa,
OPEN_ALWAYS,
FILE_ATTRIBUTE_NORMAL,
NULL);
PROCESS_INFORMATION pi;
STARTUPINFO si;
BOOL ret = FALSE;
DWORD flags = CREATE_NO_WINDOW;
ZeroMemory(&pi, sizeof(PROCESS_INFORMATION));
ZeroMemory(&si, sizeof(STARTUPINFO));
si.cb = sizeof(STARTUPINFO);
si.dwFlags |= STARTF_USESTDHANDLES;
si.hStdInput = NULL;
si.hStdError = h;
si.hStdOutput = h;
ret = CreateProcess(appName==NULL ? NULL : convertCharArrayToLPCWSTR(appName), commandLine == NULL ? NULL : convertCharArrayToLPCWSTR(commandLine), NULL, NULL, TRUE, flags, NULL, NULL, &si, &pi);
if (ret)
{
CloseHandle(pi.hProcess);
CloseHandle(pi.hThread);
CloseHandle(h);
}
}
int main()
{
char cmd[] = "C:\\windows\\system32\\cmd.exe /c ipconfig";
SaveResult("ipconfig1.txt", NULL, cmd);
char appName[] = "C:\\windows\\system32\\cmd.exe";
char cmd2[] = "/c ipconfig";
SaveResult("ipconfig2.txt", appName, cmd2);
char cmd1[] = "C:\\windows\\system32\\cmd.exe /c telnet";
SaveResult("telnet1.txt", NULL, cmd1);
char appName3[] = "C:\\windows\\system32\\cmd.exe";
char cmd3[] = "/c telnet";
SaveResult("telnet2.txt", appName3, cmd3);
char cmd4[] = "C:\\windows\\system32\\cmd.exe /c wuauclt";
SaveResult("wuauclt1.txt", NULL, cmd4);
char appName5[] = "C:\\windows\\system32\\cmd.exe";
char cmd5[] = "/c wuauclt";
SaveResult("wuauclt2.txt", appName5, cmd5);
return -1;
}
If you type in ipconfig in console window, the process will show IP information and exit.
On the other hand, if you type in telnet in console window, the process will show a prompt and waits for a response. The process does not finished automatically.
When you run this command with CreateProcess, CreateProcess will return immediately, but the process is not finished. Then you try to close the file handle which is still being used by telnet.
You can use WaitForSingleObject to wait until the process is complete. In the case of telnet the process doesn't complete. The example below demonstrates this problem.
For CreateProcess, supply the whole command line as the second parameter. Make sure the character buffer is writable, and freed at the end.
Side note, it is recommended to use wide character string for a Unicode program. It's fine to promote ANSI to UTF16, but not much is gained in this case. You can also use CreateProcessA along with STARTUPINFOA si = { sizeof(si) }; which accept ANSI character.
void SaveResult(const wchar_t *fileName, const wchar_t *commandLine)
{
SECURITY_ATTRIBUTES sa;
sa.nLength = sizeof(sa);
sa.lpSecurityDescriptor = NULL;
sa.bInheritHandle = TRUE;
HANDLE h = CreateFile(fileName, FILE_WRITE_DATA, FILE_SHARE_WRITE | FILE_SHARE_READ,
&sa, OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
if(h == INVALID_HANDLE_VALUE)
return;
PROCESS_INFORMATION pi = { 0 };
STARTUPINFO si = { sizeof(si) };
si.dwFlags |= STARTF_USESTDHANDLES;
si.hStdInput = NULL;
si.hStdError = h;
si.hStdOutput = h;
wchar_t *writable_cmdline = _wcsdup(commandLine);
BOOL success = CreateProcess(NULL, writable_cmdline,
NULL, NULL, TRUE, CREATE_NO_WINDOW, NULL, NULL, &si, &pi);
bool finished = false;
//wait for 1 second
for(int i = 0; i < 10; i++)
{
if(WaitForSingleObject(pi.hProcess, 100) <= 0)
{
finished = true;
break;
}
}
if(success)
{
CloseHandle(pi.hProcess);
CloseHandle(pi.hThread);
}
CloseHandle(h);
free(writable_cmdline);
if(!finished)
printf("Process didn't finish\n");
}
int main()
{
SaveResult(L"telnet.txt", L"C:\\windows\\system32\\cmd.exe /c telnet");
SaveResult(L"ipconfig.txt", L"C:\\windows\\system32\\cmd.exe /c ipconfig");
return 0;
}
In MFC I want to Create a process by opening Command Window and executing a command in that say open notepad.
i Found this tried it didn't work
STARTUPINFO sInfo = {0};
sInfo.cb = sizeof(sInfo);
PROCESS_INFORMATION pInfo = {0};
CreateProcess("C:\\WINDOWS\\System32\\cmd.exe",""0,0,TRUE,
NORMAL_PRIORITY_CLASS,0,0,&sInfo,&pInfo);
You're not telling cmd to do anything. Try this:
CreateProcess(0, "C:\\WINDOWS\\System32\\cmd.exe /c notepad.exe", 0, 0, TRUE, 0, 0, 0, &sInfo, &pInfo);
But maybe this is easier
ShellExecute(0, "open", "cmd.exe", "/C notepad.exe", 0, SW_HIDE);
Or even this:
system("notepad.exe");
Go to the MSDN document we can see, you don't specify the second parameter that is the command line to excute.
On the other hand, there are no NORMAL_PRIORITY_CLASS enum item for the sixth parameter. You should do like this:
STARTUPINFO si = { sizeof(si) };
PROCESS_INFORMATION pi;
si.dwFlags = STARTF_USESHOWWINDOW;
si.wShowWindow = TRUE;
TCHAR cmdline[] =TEXT(" notepad.exe");
BOOL bRet = ::CreateProcess (
TEXT("C:\\WINDOWS\\System32\\cmd.exe"),
cmdline,
NULL,
NULL,
FALSE,
CREATE_NEW_CONSOLE,
NULL,
NULL,
&si,
&pi);
I just want to create a process to run a application on windows my code as below:
//init the structure
STARTUPINFOW StartupInfo;
ZeroMemory(&StartupInfo,sizeof(StartupInfo));
StartupInfo.cb = sizeof(StartupInfo);
StartupInfo.dwFlags = STARTF_USESHOWWINDOW;
StartupInfo.wShowWindow = true ;
PROCESS_INFORMATION ProcessInfo;
ZeroMemory(&ProcessInfo,sizeof(ProcessInfo));
DWORD dwExitCode = 0;
LPCWSTR cmdFormat = "xxxxxx"; // this is the applocation's path
LPWSTR cmd = new wchar_t[256*sizeof(wchar_t)];
wcscpy_s(cmd, wcslen(cmdFormat)+1,cmdFormat);
int ret = CreateProcessW(cmd,
NULL,
NULL,
NULL,
false,
NORMAL_PRIORITY_CLASS,
NULL,
NULL,
&StartupInfo,
&ProcessInfo);
if(ret)
{
CloseHandle(ProcessInfo.hThread);
WaitForSingleObject(ProcessInfo.hProcess, INFINITE);
GetExitCodeProcess(ProcessInfo.hProcess, &dwExitCode);
CloseHandle(ProcessInfo.hProcess);
}
if(dwExitCode==0)
{
DWORD errorcode = GetLastError();
std::cout<<"ERROR: "<<errorcode<<std::endl;
}
I use this function that I can create new process to run notepad.exe and some other applications
Q1: but when I close the application the dwExitCode = 0 and the errorcode 1803
Q2: some application can not run just exit immediately
Following function always works for me:
static int createProcess(string cmdLine, bool isWait, LPDWORD pExitCode)
{
STARTUPINFOA si;
PROCESS_INFORMATION pi;
::ZeroMemory(&si, sizeof(si));
si.cb = sizeof(si);
::ZeroMemory(&pi, sizeof(pi));
// reset last error
::SetLastError(0);
// Start the child process.
BOOL bCreateProcess = ::CreateProcessA(NULL, // No module name (use command line)
(LPSTR) cmdLine.c_str(), // Command line
NULL, // Process handle not inheritable
NULL, // Thread handle not inheritable
FALSE, // Set handle inheritance to FALSE
CREATE_NO_WINDOW, // No creation flags
NULL, // Use parent's environment block
NULL, // Use parent's starting directory
&si, // Pointer to STARTUPINFO structure
&pi); // Pointer to PROCESS_INFORMATION structure
if(!bCreateProcess)
{
// create process failed,
//Logger::trace(error, getClassName(), "createProcess", getFormattedStringA("create process failed with error:%d, Commad line:'%s',isWait:%d",GetLastError(), cmdLine.c_str(), isWait),"CreateProcess Failed");
return 0;
}
//Logger::trace(info, getClassName(), "createProcess", getFormattedStringA("created process,Commad line:'%s',isWait:%d,Result:%d", cmdLine.c_str(), isWait,bCreateProcess),"Launched Process");
// Wait until child process exits.
if(isWait)
{
::WaitForSingleObject(pi.hProcess, INFINITE);
if(pExitCode)
{
::GetExitCodeProcess(pi.hProcess, pExitCode);
}
}
::CloseHandle( pi.hProcess );
pi.hProcess = NULL;
::CloseHandle( pi.hThread );
pi.hThread = NULL;
return 1; // return non zero. function succeeded
}
Yes I find the root cause some application need some local resource ,so maybe need the parent's starting directory