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RemCom.cpp
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RemCom.cpp
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/*
Copyright (c) 2006-2012 Talha Tariq [ talha.tariq@gmail.com ]
Luke Suchocki
Merlyn Morgan-Graham
Andres Ederra
All rights are reserved.
Permission to use, copy, modify, and distribute this software
for any purpose and without any fee is hereby granted,
provided this notice is included in its entirety in the
documentation and in the source files.
This software and any related documentation is provided "as is"
without any warranty of any kind, either express or implied,
including, without limitation, the implied warranties of
merchantability or fitness for a particular purpose. The entire
risk arising out of use or performance of the software remains
with you.
$Author: Talha Tariq [ talha.tariq@gmail.com ]
uses some code from xCmd by Zoltan Csizmadia
$Revision: Talha Tariq [ talha.tariq@gmail.com ]
$Revision: Luke Suchocki (patched rc)
$Revision: Merlyn Morgan-Graham (handle spaces in the filename)
$Revision: Andres Ederra (support for 64bits targets, send
remcom outout to stderr, support for longer
parameters, escape special characters in command
parameters, detailed error codes)
$Date: 2012/01/24 09:00:00 $
$Version History: $ - Refactored and Restructured Code - Deleted Unnecessary variables and Functions for Memory Consumption and Optimisation.
- Added Function StartLocalProcessAsUser for local user impersonation
- Added Start Local Process for launching external commands
- Added GetAdminSid, GetLocalSid, GetLogonSID, FreeLogonSid for getting tokens to pass on for logon impersonation
- Added IsLaunchedFromAdmin to get the local admin sid
- Added ExtractLocalBinaryResource to extract the local binary resource for local process impersonation
- Added ProcComs to implement local process functionality
- Added RemCom to implement remote process functionality
- Patched to give the correct return code
- Patched to handle spaces in the filename.
- Modified to handle longer command parameters
- Changed directory to copy executables to \\ADMIN$ instead of \\ADMIN$\system32 in order to support 64 bits targets
- Changed RemCom output to be sent to stderr while the remote command writes to stdout
- Allow to scape '/' character to use it as part of remote command and its parameters.
- Reclassified error return codes. Now RemCom returns its own return code, and the remote program return code is show at the stdout.
//Return Codes:
//
// (-1) Incorrect parameters
// (-2) Malformed credentials
// (-3) Invalid target name
// (-4) Bad credentials
// (-5) Could not connect to target
// (-6) Error copying executable
// (-7) Error copying service
// (-8) Error executing service
// (-9) Error connecting to remote service
- Patched to handle spaces in the filename (FIXED).
- Tested with: win2k, winxp(32bits), win2003(32&64), win2008R2(32&64), win7(32&64).
$TODO: - Add Getopt to parse command line parametres more effectively.
- Implemement cleanup and disconnect remote share command
$Description: $ - RemCom is RAT [Remote Administration Tool] that lets you execute processes on remote windows systems, copy files,
process there output and stream it back. It allows execution of remote shell commands directly with full interactive console
$Workfile: $ - RemCom.cpp
*/
#define _WIN32_WINNT 0x0500 //Will work only on W2K and above
#include "RemCom.h"
#define DESKTOP_ALL (DESKTOP_READOBJECTS | DESKTOP_CREATEWINDOW | \
DESKTOP_CREATEMENU | DESKTOP_HOOKCONTROL | DESKTOP_JOURNALRECORD | \
DESKTOP_JOURNALPLAYBACK | DESKTOP_ENUMERATE | DESKTOP_WRITEOBJECTS | \
DESKTOP_SWITCHDESKTOP | STANDARD_RIGHTS_REQUIRED)
#define WINSTA_ALL (WINSTA_ENUMDESKTOPS | WINSTA_READATTRIBUTES | \
WINSTA_ACCESSCLIPBOARD | WINSTA_CREATEDESKTOP | WINSTA_WRITEATTRIBUTES | \
WINSTA_ACCESSGLOBALATOMS | WINSTA_EXITWINDOWS | WINSTA_ENUMERATE | \
WINSTA_READSCREEN | STANDARD_RIGHTS_REQUIRED)
#define GENERIC_ACCESS (GENERIC_READ | GENERIC_WRITE | GENERIC_EXECUTE | GENERIC_ALL)
// Constant Definitions
#define SIZEOF_BUFFER 0x500
// Local Machine Settings
TCHAR szThisMachine[SIZEOF_BUFFER] = _T("");
TCHAR szPassword[SIZEOF_BUFFER] = _T("");
TCHAR szArguments[SIZEOF_BUFFER] = _T("");
TCHAR szConsoleTitle[SIZEOF_BUFFER] = _T("");
TCHAR szLocalBinPath[_MAX_PATH] = _T("");
// Windows Default Windows Path
LPCTSTR lpszSystemRoot = "%SystemRoot%";
LPCTSTR lpszLocalMachine = "\\\\localhost";
LPCTSTR lpszLocalIP = "\\\\127.0.0.1";
// Remote Parameters
LPCTSTR lpszMachine = NULL;
LPCTSTR lpszPassword = NULL;
LPCTSTR lpszUser = NULL;
LPCTSTR lpszDomain = NULL;
LPCTSTR lpszCommandExe = NULL;
// Named Pipes for Input and Output
HANDLE hCommandPipe = INVALID_HANDLE_VALUE;
HANDLE hRemoteOutPipe = INVALID_HANDLE_VALUE;
HANDLE hRemoteStdInputPipe = INVALID_HANDLE_VALUE;
HANDLE hRemoteErrorPipe = INVALID_HANDLE_VALUE;
//Method Declarations
BOOL AddAceToWindowStation(HWINSTA hwinsta, PSID psid);
BOOL AddAceToDesktop(HDESK hdesk, PSID psid);
// Show the last error's description
DWORD ShowLastError()
{
LPVOID lpvMessageBuffer;
DWORD rc = GetLastError();
FormatMessage(
FORMAT_MESSAGE_ALLOCATE_BUFFER |
FORMAT_MESSAGE_FROM_SYSTEM |
FORMAT_MESSAGE_IGNORE_INSERTS,
NULL,
rc,
MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
(LPTSTR) &lpvMessageBuffer,
0,
NULL
);
//Error( _T("Error code = %d.\n", rc) );
//_ftprintf( stderr, "Error code = %d.\n", rc);
Error( (LPCTSTR)lpvMessageBuffer );
Error( _T("\n") );
LocalFree (lpvMessageBuffer);
//ExitProcess(GetLastError());
return rc;
}
//Gets the SID for Admin
void* GetAdminSid()
{
SID_IDENTIFIER_AUTHORITY ntauth = SECURITY_NT_AUTHORITY;
void* psid = 0;
if ( !AllocateAndInitializeSid( &ntauth, 2,
SECURITY_BUILTIN_DOMAIN_RID,
DOMAIN_ALIAS_RID_ADMINS,
0, 0, 0, 0, 0, 0, &psid ) )
ShowLastError();
return psid;
}
// Gets the SID for System Account
void* GetLocalSystemSid()
{
SID_IDENTIFIER_AUTHORITY ntauth = SECURITY_NT_AUTHORITY;
void* psid = 0;
if ( !AllocateAndInitializeSid( &ntauth, 1,
SECURITY_LOCAL_SYSTEM_RID,
0, 0, 0, 0, 0, 0, 0, &psid ) )
ShowLastError();
return psid;
}
// Checks if the launching process parent is local administrator
BOOL IsLaunchedFromAdmin()
{
bool bIsAdmin = false;
HANDLE hToken = 0;
if ( !OpenProcessToken( GetCurrentProcess(), TOKEN_QUERY, &hToken ) ){
ShowLastError();
}
DWORD cb = 0;
GetTokenInformation( hToken, TokenGroups, 0, 0, &cb );
TOKEN_GROUPS* pTokenGroups = (TOKEN_GROUPS*)malloc( cb );
if ( !pTokenGroups )
ShowLastError();
if ( !GetTokenInformation( hToken, TokenGroups, pTokenGroups, cb, &cb ) )
ShowLastError();
void* pAdminSid = GetAdminSid();
SID_AND_ATTRIBUTES* const end = pTokenGroups->Groups + pTokenGroups->GroupCount;
SID_AND_ATTRIBUTES* it;
for ( it = pTokenGroups->Groups; end != it; ++it )
if ( EqualSid( it->Sid, pAdminSid ) )
break;
bIsAdmin = end != it;
FreeSid( pAdminSid );
free( pTokenGroups );
CloseHandle( hToken );
return bIsAdmin;
}
bool IsLocalSystem()
{
bool bIsLocalSystem = false;
HANDLE htok = 0;
if ( !OpenProcessToken( GetCurrentProcess(), TOKEN_QUERY, &htok ) )
ShowLastError();
BYTE userSid[256];
DWORD cb = sizeof userSid;
if ( !GetTokenInformation( htok, TokenUser, userSid, cb, &cb ) )
ShowLastError();
TOKEN_USER* ptu = (TOKEN_USER*)userSid;
void* pLocalSystemSid = GetLocalSystemSid();
bIsLocalSystem = EqualSid( pLocalSystemSid, ptu->User.Sid ) ? true : false;
FreeSid( pLocalSystemSid );
CloseHandle( htok );
return bIsLocalSystem;
}
VOID FreeLogonSID (PSID *ppsid)
{
HeapFree(GetProcessHeap(), 0, (LPVOID)*ppsid);
}
BOOL GetLogonSID (HANDLE hToken, PSID *ppsid)
{
BOOL bSuccess = FALSE;
DWORD dwIndex;
DWORD dwLength = 0;
PTOKEN_GROUPS ptg = NULL;
// Verify the parameter passed in is not NULL.
if (NULL == ppsid)
goto Cleanup;
// Get required buffer size and allocate the TOKEN_GROUPS buffer.
if (!GetTokenInformation(
hToken, // handle to the access token
TokenGroups, // get information about the token's groups
(LPVOID) ptg, // pointer to TOKEN_GROUPS buffer
0, // size of buffer
&dwLength // receives required buffer size
))
{
if (GetLastError() != ERROR_INSUFFICIENT_BUFFER)
goto Cleanup;
ptg = (PTOKEN_GROUPS)HeapAlloc(GetProcessHeap(),
HEAP_ZERO_MEMORY, dwLength);
if (ptg == NULL)
goto Cleanup;
}
// Get the token group information from the access token.
if (!GetTokenInformation(
hToken, // handle to the access token
TokenGroups, // get information about the token's groups
(LPVOID) ptg, // pointer to TOKEN_GROUPS buffer
dwLength, // size of buffer
&dwLength // receives required buffer size
))
{
goto Cleanup;
}
// Loop through the groups to find the logon SID.
for (dwIndex = 0; dwIndex < ptg->GroupCount; dwIndex++)
if ((ptg->Groups[dwIndex].Attributes & SE_GROUP_LOGON_ID)
== SE_GROUP_LOGON_ID)
{
// Found the logon SID; make a copy of it.
dwLength = GetLengthSid(ptg->Groups[dwIndex].Sid);
*ppsid = (PSID) HeapAlloc(GetProcessHeap(),
HEAP_ZERO_MEMORY, dwLength);
if (*ppsid == NULL)
goto Cleanup;
if (!CopySid(dwLength, *ppsid, ptg->Groups[dwIndex].Sid))
{
HeapFree(GetProcessHeap(), 0, (LPVOID)*ppsid);
goto Cleanup;
}
break;
}
bSuccess = TRUE;
Cleanup:
// Free the buffer for the token groups.
if (ptg != NULL)
HeapFree(GetProcessHeap(), 0, (LPVOID)ptg);
return bSuccess;
}
// Check the command line arguments
BOOL IsCmdLineParameter( LPCTSTR lpszParam )
{
for( int i = 1; i < __argc; i++ )
{
if ( __targv[i][0] == _T('\\') )
continue;
else
{
if ( __targv[i][0] == _T('/') )
{
if ( _tcsicmp( __targv[i] + 1, lpszParam ) == 0 )
return TRUE;
}
else
return FALSE;
}
}
return FALSE;
}
LPCTSTR GetParamValue( LPCTSTR lpszParam )
{
DWORD dwParamLength = _tcslen( lpszParam );
for( int i = 1; i < __argc; i++ ){
if ( __targv[i][0] == _T('\\') || __targv[i][0] == _T('.'))
continue;
else{
if ( __targv[i][0] == _T('/') )
{
if ( _tcsnicmp( __targv[i] + 1, lpszParam, dwParamLength ) == 0 )
return __targv[i] + dwParamLength + 1;
}
else
return NULL;
}
}
return NULL;
}
LPCTSTR GetNthParameter( DWORD n, DWORD& argvIndex )
{
DWORD index = 0;
for( int i = 1; i < __argc; i++ )
{
DWORD dwParamLength = _tcslen( __targv[i] );
bool bIsEscaped=false;
if ( __targv[i][0] != _T('/') ){
index++;
}else{
if( dwParamLength > 1 && ( __targv[i][1] == _T('/') ) ){
bIsEscaped=true;
index++;
}
}
if ( index == n )
{
argvIndex = i;
return bIsEscaped ? ( __targv[i] + sizeof(__targv[i][0]) ) : __targv[i];
}
}
return NULL;
}
// Gets the arguments parameter
void GetRemoteCommandArguments( LPTSTR lpszCommandArguments )
{
DWORD dwIndex = 0;
lpszCommandArguments[0] = _T('\0');
if ( GetNthParameter( 3, dwIndex ) != NULL )
for( int i = dwIndex; i < __argc; i++ )
{
DWORD dwParamLen = _tcslen( __targv[i] );
if ( (__targv[i][0] == '/') && (dwParamLen>1 && __targv[i][1] == '/') ){
_tcscat( lpszCommandArguments, __targv[i]+sizeof(__targv[i][0]) );
}else{
_tcscat( lpszCommandArguments, __targv[i] );
}
if ( i + 1 < __argc )
_tcscat( lpszCommandArguments, _T(" ") );
}
}
// Gets the remote machine parameter
LPCTSTR GetRemoteMachineName()
{
DWORD dwIndex = 0;
LPCTSTR lpszMachine = GetNthParameter( 1, dwIndex );
if ( lpszMachine == NULL )
// return NULL;
return lpszLocalIP;
if ( _tcsnicmp( lpszMachine, _T(" "), 2 ) == 0 )
return lpszLocalIP;
if ( _tcsnicmp( lpszMachine, _T("\\\\"), 2 ) == 0 )
return lpszMachine;
// If a dot is entered we take it as localhost
if ( _tcsnicmp( lpszMachine, _T("."), 2 ) == 0 )
return lpszLocalIP;
return NULL;
}
// Turns off the echo on a console input handle - Used for hiding password typing
BOOL EnableEcho( HANDLE handle, BOOL bEcho )
{
DWORD mode;
if ( !GetConsoleMode( handle, &mode ) )
return FALSE;
if ( bEcho )
mode |= ENABLE_ECHO_INPUT;
else
mode &= ~ENABLE_ECHO_INPUT;
return SetConsoleMode( handle, mode );
}
// Gets the password
BOOL PromptForPassword( LPTSTR lpszPwd )
{
HANDLE hInput = GetStdHandle(STD_INPUT_HANDLE);
DWORD dwRead = 0;
Out( _T("Enter Password: ") );
// Turn off echo
if ( EnableEcho( hInput, FALSE ) )
{
// Read password from console
::ReadConsole( hInput, lpszPwd, SIZEOF_BUFFER, &dwRead, NULL );
// Ignore ENTER (0x0D0A)
lpszPwd[max( dwRead-2, 0 )] = _T('\0');
// Turn echo on
EnableEcho( hInput, TRUE );
Out( _T("\n\n") );
}
else
{
//Console input doesn't support echo on/off
Out( _T("\n") );
Error( _T("Couldn't turn off echo to hide password chars.\n") );
}
return TRUE;
}
BOOL SetConnectionCredentials( BOOL bPromptForPassword )
{
// Check the command line
lpszPassword = GetParamValue( _T("pwd:") );
lpszUser = GetParamValue( _T("user:") );
if ( lpszUser != NULL && lpszPassword != NULL && !bPromptForPassword )
if ( _tcscmp( lpszPassword, _T("*") ) == 0 )
// We found user name, and * as password, which means prompt for password
bPromptForPassword = TRUE;
if ( bPromptForPassword )
{
// We found user name, and * as password, which means prompt for password
lpszPassword = szPassword;
if ( !PromptForPassword( szPassword ) )
return FALSE;
}
return TRUE;
}
// Establish Connection to Remote Machine
BOOL EstablishConnection( LPCTSTR lpszRemote, LPCTSTR lpszResource, BOOL bEstablish )
{
TCHAR szRemoteResource[_MAX_PATH];
DWORD rc;
// Remote resource, \\remote\ipc$, remote\admin$, ...
_stprintf( szRemoteResource, _T("%s\\%s"), lpszRemote, lpszResource );
//
// disconnect or connect to the resource, based on bEstablish
//
if ( bEstablish )
{
NETRESOURCE nr;
nr.dwType = RESOURCETYPE_ANY;
nr.lpLocalName = NULL;
nr.lpRemoteName = (LPTSTR)&szRemoteResource;
nr.lpProvider = NULL;
//Establish connection (using username/pwd)
rc = WNetAddConnection2( &nr, lpszPassword, lpszUser, FALSE );
switch( rc )
{
case ERROR_ACCESS_DENIED:
case ERROR_INVALID_PASSWORD:
case ERROR_LOGON_FAILURE:
case ERROR_SESSION_CREDENTIAL_CONFLICT:
// Prompt for password if the default(NULL) was not good
if ( lpszUser != NULL && lpszPassword == NULL )
{
Out( _T("Invalid password\n\n") );
SetConnectionCredentials( TRUE );
Out( _T("Connecting to remote service ... ") );
//Establish connection (using username/pwd) again
rc = WNetAddConnection2( &nr, lpszPassword, lpszUser, FALSE );
}
break;
}
}
else
// Disconnect
rc = WNetCancelConnection2( szRemoteResource, 0, NULL );
if ( rc == NO_ERROR )
return TRUE; // indicate success
SetLastError( rc );
return FALSE;
}
// Copies the command's exe file to remote machine (\\remote\ADMIN$)
// This function called, if the /c option is used
BOOL CopyBinaryToRemoteSystem()
{
if ( !IsCmdLineParameter(_T("c")) )
return TRUE;
TCHAR drive[_MAX_DRIVE];
TCHAR dir[_MAX_DIR];
TCHAR fname[_MAX_FNAME];
TCHAR ext[_MAX_EXT];
TCHAR szRemoteResource[_MAX_PATH];
// Gets the file name and extension
_tsplitpath( lpszCommandExe, drive, dir, fname, ext );
_stprintf( szRemoteResource, _T("%s\\ADMIN$\\%s%s"), lpszMachine, fname, ext );
// Copy the Command's exe file to \\remote\ADMIN$
return CopyFile( lpszCommandExe, szRemoteResource, FALSE );
}
// Copies the Local Process Launcher Executable from Self Resource -> Copies to Current Path
BOOL ExtractLocalBinaryResource()
{
DWORD dwWritten = 0;
HMODULE hInstance = ::GetModuleHandle(NULL);
// Find the binary file in resources
HRSRC hLocalBinRes = ::FindResource(
hInstance,
MAKEINTRESOURCE(IDR_ProcComs),
_T("ProcComs") );
HGLOBAL hLocalBinary = ::LoadResource(
hInstance,
hLocalBinRes );
LPVOID pLocalBinary = ::LockResource( hLocalBinary );
if ( pLocalBinary == NULL )
return FALSE;
DWORD dwLocalBinarySize = ::SizeofResource(
hInstance,
hLocalBinRes );
GetCurrentDirectory(MAX_PATH , szLocalBinPath);
_stprintf( szLocalBinPath, _T("%s\\%s"), szLocalBinPath, ProcComs );
HANDLE hFileLocalBinary = CreateFile(
szLocalBinPath,
GENERIC_WRITE,
0,
NULL,
CREATE_ALWAYS,
FILE_ATTRIBUTE_NORMAL,
NULL );
if ( hFileLocalBinary == INVALID_HANDLE_VALUE )
return FALSE;
WriteFile( hFileLocalBinary, pLocalBinary, dwLocalBinarySize, &dwWritten, NULL );
// Out( _T("File Written ...\n") );
// Sleep(10000);
CloseHandle( hFileLocalBinary );
return dwWritten == dwLocalBinarySize;
}
// Extracts the Service Executable from Self Resource -> Pushes to the remote machine
BOOL CopyServiceToRemoteMachine()
{
DWORD dwWritten = 0;
HMODULE hInstance = ::GetModuleHandle(NULL);
// Find the binary file in resources
HRSRC hSvcExecutableRes = ::FindResource(
hInstance,
MAKEINTRESOURCE(IDR_RemComSVC),
_T("RemComSVC") );
HGLOBAL hSvcExecutable = ::LoadResource(
hInstance,
hSvcExecutableRes );
LPVOID pSvcExecutable = ::LockResource( hSvcExecutable );
if ( pSvcExecutable == NULL )
return FALSE;
DWORD dwSvcExecutableSize = ::SizeofResource(
hInstance,
hSvcExecutableRes );
TCHAR szSvcExePath[_MAX_PATH];
_stprintf( szSvcExePath, _T("%s\\ADMIN$\\System32\\%s"), lpszMachine, RemComSVCEXE );
// Copy binary file from resources to \\remote\ADMIN$\System32
HANDLE hFileSvcExecutable = CreateFile(
szSvcExePath,
GENERIC_WRITE,
0,
NULL,
CREATE_ALWAYS,
FILE_ATTRIBUTE_NORMAL,
NULL );
if ( hFileSvcExecutable == INVALID_HANDLE_VALUE )
return FALSE;
WriteFile( hFileSvcExecutable, pSvcExecutable, dwSvcExecutableSize, &dwWritten, NULL );
CloseHandle( hFileSvcExecutable );
return dwWritten == dwSvcExecutableSize;
}
// Installs and starts the remote service on remote machine
BOOL InstallAndStartRemoteService()
{
// Open remote Service Manager
SC_HANDLE hSCM = ::OpenSCManager( lpszMachine, NULL, SC_MANAGER_ALL_ACCESS);
if (hSCM == NULL)
return FALSE;
// Maybe it's already there and installed, let's try to run
SC_HANDLE hService =::OpenService( hSCM, SERVICENAME, SERVICE_ALL_ACCESS );
// Creates service on remote machine, if it's not installed yet
if ( hService == NULL )
hService = ::CreateService(
hSCM, SERVICENAME, LONGSERVICENAME,
SERVICE_ALL_ACCESS,
SERVICE_WIN32_OWN_PROCESS,
SERVICE_DEMAND_START, SERVICE_ERROR_NORMAL,
_T("%SystemRoot%\\system32\\")RemComSVCEXE,
NULL, NULL, NULL, NULL, NULL );
if (hService == NULL)
{
::CloseServiceHandle(hSCM);
return FALSE;
}
// Start service
if ( !StartService( hService, 0, NULL ) )
return FALSE;
::CloseServiceHandle(hService);
::CloseServiceHandle(hSCM);
return TRUE;
}
// Connects to the remote service
BOOL ConnectToRemoteService( DWORD dwRetry, DWORD dwRetryTimeOut )
{
TCHAR szPipeName[_MAX_PATH] = _T("");
// Remote service communication pipe name
_stprintf( szPipeName, _T("%s\\pipe\\%s"), lpszMachine, RemComCOMM );
SECURITY_ATTRIBUTES SecAttrib = {0};
SECURITY_DESCRIPTOR SecDesc;
InitializeSecurityDescriptor(&SecDesc, SECURITY_DESCRIPTOR_REVISION);
SetSecurityDescriptorDacl(&SecDesc, TRUE, NULL, TRUE);
SecAttrib.nLength = sizeof(SECURITY_ATTRIBUTES);
SecAttrib.lpSecurityDescriptor = &SecDesc;;
SecAttrib.bInheritHandle = TRUE;
// Connects to the remote service's communication pipe
while( dwRetry-- )
{
if ( WaitNamedPipe( szPipeName, 5000 ) )
{
hCommandPipe = CreateFile(
szPipeName,
GENERIC_WRITE | GENERIC_READ,
0,
&SecAttrib,
OPEN_EXISTING,
FILE_ATTRIBUTE_NORMAL,
NULL );
break;
}
else
// Try Again
Sleep( dwRetryTimeOut );
}
return hCommandPipe != INVALID_HANDLE_VALUE;
}
// Fill the communication message structure
// This structure will be transferred to remote machine
BOOL BuildMessageStructure( RemComMessage* pMsg )
{
LPCTSTR lpszWorkingDir = GetParamValue( _T("d:") );
// Info
pMsg->dwProcessId = GetCurrentProcessId();
_tcscpy( pMsg->szMachine, szThisMachine );
// Cmd
if ( !IsCmdLineParameter(_T("c")) )
_stprintf( pMsg->szCommand, _T("%s %s"), lpszCommandExe, szArguments );
else
{
TCHAR drive[_MAX_DRIVE];
TCHAR dir[_MAX_DIR];
TCHAR fname[_MAX_FNAME];
TCHAR ext[_MAX_EXT];
_tsplitpath( lpszCommandExe, drive, dir, fname, ext );
_stprintf( pMsg->szCommand, _T("%s%s %s"), fname, ext, szArguments );
}
// Priority
if ( IsCmdLineParameter( _T("realtime") ) )
pMsg->dwPriority = REALTIME_PRIORITY_CLASS;
else
if ( IsCmdLineParameter( _T("high") ) )
pMsg->dwPriority = HIGH_PRIORITY_CLASS;
else
if ( IsCmdLineParameter( _T("idle") ) )
pMsg->dwPriority = IDLE_PRIORITY_CLASS;
else
pMsg->dwPriority = NORMAL_PRIORITY_CLASS; // default
// No wait
pMsg->bNoWait = IsCmdLineParameter( _T("nowait") );
if ( lpszWorkingDir != NULL )
_tcscpy( pMsg->szWorkingDir, lpszWorkingDir );
// Console Title
_stprintf( szConsoleTitle, _T("%s : %s"), lpszMachine, pMsg->szCommand );
SetConsoleTitle( szConsoleTitle );
return TRUE;
}
// Listens the remote stdout pipe
// Remote process will send its stdout to this pipe
void ListenRemoteOutPipeThread(void*)
{
HANDLE hOutput = GetStdHandle( STD_OUTPUT_HANDLE );
TCHAR szBuffer[SIZEOF_BUFFER];
DWORD dwRead;
for(;;)
{
if ( !ReadFile( hRemoteOutPipe, szBuffer, SIZEOF_BUFFER, &dwRead, NULL ) ||
dwRead == 0 )
{
DWORD dwErr = GetLastError();
if ( dwErr == ERROR_NO_DATA)
break;
}
// Handle CLS command, just for fun :)
switch( szBuffer[0] )
{
case 12: //cls
{
DWORD dwWritten;
COORD origin = {0,0};
CONSOLE_SCREEN_BUFFER_INFO sbi;
if ( GetConsoleScreenBufferInfo( hOutput, &sbi ) )
{
FillConsoleOutputCharacter(
hOutput,
_T(' '),
sbi.dwSize.X * sbi.dwSize.Y,
origin,
&dwWritten );
SetConsoleCursorPosition(
hOutput,
origin );
}
}
continue;
break;
}
szBuffer[ dwRead / sizeof(TCHAR) ] = _T('\0');
// Send it to our stdout
Out( szBuffer );
}
CloseHandle( hRemoteOutPipe );
hRemoteOutPipe = INVALID_HANDLE_VALUE;
::ExitThread(0);
}
// Listens the remote stderr pipe
// Remote process will send its stderr to this pipe
void ListenRemoteErrorPipeThread(void*)
{
TCHAR szBuffer[SIZEOF_BUFFER];
DWORD dwRead;
for(;;)
{
if ( !ReadFile( hRemoteErrorPipe, szBuffer, SIZEOF_BUFFER, &dwRead, NULL ) ||
dwRead == 0 )
{
DWORD dwErr = GetLastError();
if ( dwErr == ERROR_NO_DATA)
break;
}
szBuffer[ dwRead / sizeof(TCHAR) ] = _T('\0');
// Write it to our stderr
Error( szBuffer );
}
CloseHandle( hRemoteErrorPipe );
hRemoteErrorPipe = INVALID_HANDLE_VALUE;
::ExitThread(0);
}
// Listens our console, and if the user types in something,
// we will pass it to the remote machine.
// ReadConsole return after pressing the ENTER
void ListenRemoteStdInputPipeThread(void*)
{
HANDLE hInput = GetStdHandle(STD_INPUT_HANDLE);
TCHAR szInputBuffer[SIZEOF_BUFFER] = _T("");
DWORD nBytesRead;
DWORD nBytesWrote;
for(;;)
{
// Read our console input
if ( !ReadConsole( hInput, szInputBuffer, SIZEOF_BUFFER, &nBytesRead, NULL ) )
{
DWORD dwErr = GetLastError();
if ( dwErr == ERROR_NO_DATA)
break;
}
// Send it to remote process' stdin
if ( !WriteFile( hRemoteStdInputPipe, szInputBuffer, nBytesRead, &nBytesWrote, NULL ) )
break;
}
CloseHandle( hRemoteStdInputPipe );
hRemoteStdInputPipe = INVALID_HANDLE_VALUE;
::ExitThread(0);
}
// Start listening stdout, stderr and stdin
void ListenToRemoteNamedPipes()
{
// StdOut
_beginthread( ListenRemoteOutPipeThread, 0, NULL );
// StdErr
_beginthread( ListenRemoteErrorPipeThread, 0, NULL );
// StdIn
_beginthread( ListenRemoteStdInputPipeThread, 0, NULL );
}
// Connects to the remote processes stdout, stderr and stdin named pipes
BOOL ConnectToRemotePipes( DWORD dwRetryCount, DWORD dwRetryTimeOut )
{
TCHAR szStdOut[_MAX_PATH];
TCHAR szStdIn[_MAX_PATH];
TCHAR szStdErr[_MAX_PATH];
SECURITY_ATTRIBUTES SecAttrib = {0};
SECURITY_DESCRIPTOR SecDesc;
InitializeSecurityDescriptor(&SecDesc, SECURITY_DESCRIPTOR_REVISION);
SetSecurityDescriptorDacl(&SecDesc, TRUE, NULL, FALSE);
SecAttrib.nLength = sizeof(SECURITY_ATTRIBUTES);
SecAttrib.lpSecurityDescriptor = &SecDesc;;
SecAttrib.bInheritHandle = TRUE;
hRemoteOutPipe = INVALID_HANDLE_VALUE;
hRemoteStdInputPipe = INVALID_HANDLE_VALUE;
hRemoteErrorPipe = INVALID_HANDLE_VALUE;
// StdOut pipe name
_stprintf( szStdOut, _T("%s\\pipe\\%s%s%d"),
lpszMachine,
RemComSTDOUT,
szThisMachine,
GetCurrentProcessId() );
// StdErr pipe name
_stprintf( szStdIn, _T("%s\\pipe\\%s%s%d"),
lpszMachine,
RemComSTDIN,
szThisMachine,
GetCurrentProcessId() );
// StdIn pipe name
_stprintf( szStdErr, _T("%s\\pipe\\%s%s%d"),
lpszMachine,
RemComSTDERR,
szThisMachine,
GetCurrentProcessId() );