C++ CreateProcess Telnet

[Anton010203]

Hello, I have problem with CreateProcess and Telnet. The main question is why telnet.exe file contains:

'telnet' is not recognized as an internal or external command,

operable program or batch file.

I checked on PC telnet is installed. Where is problem?

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;
}


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