base/shell/cmd/cmd.c

   1 /*
   2  *  CMD.C - command-line interface.
   3  *
   4  *
   5  *  History:
   6  *
   7  *    17 Jun 1994 (Tim Norman)
   8  *        started.
   9  *
  10  *    08 Aug 1995 (Matt Rains)
  11  *        I have cleaned up the source code. changes now bring this source
  12  *        into guidelines for recommended programming practice.
  13  *
  14  *        A added the the standard FreeDOS GNU licence test to the
  15  *        initialize() function.
  16  *
  17  *        Started to replace puts() with printf(). this will help
  18  *        standardize output. please follow my lead.
  19  *
  20  *        I have added some constants to help making changes easier.
  21  *
  22  *    15 Dec 1995 (Tim Norman)
  23  *        major rewrite of the code to make it more efficient and add
  24  *        redirection support (finally!)
  25  *
  26  *    06 Jan 1996 (Tim Norman)
  27  *        finished adding redirection support!  Changed to use our own
  28  *        exec code (MUCH thanks to Svante Frey!!)
  29  *
  30  *    29 Jan 1996 (Tim Norman)
  31  *        added support for CHDIR, RMDIR, MKDIR, and ERASE, as per
  32  *        suggestion of Steffan Kaiser
  33  *
  34  *        changed "file not found" error message to "bad command or
  35  *        filename" thanks to Dustin Norman for noticing that confusing
  36  *        message!
  37  *
  38  *        changed the format to call internal commands (again) so that if
  39  *        they want to split their commands, they can do it themselves
  40  *        (none of the internal functions so far need that much power, anyway)
  41  *
  42  *    27 Aug 1996 (Tim Norman)
  43  *        added in support for Oliver Mueller's ALIAS command
  44  *
  45  *    14 Jun 1997 (Steffan Kaiser)
  46  *        added ctrl-break handling and error level
  47  *
  48  *    16 Jun 1998 (Rob Lake)
  49  *        Runs command.com if /P is specified in command line.  Command.com
  50  *        also stays permanent.  If /C is in the command line, starts the
  51  *        program next in the line.
  52  *
  53  *    21 Jun 1998 (Rob Lake)
  54  *        Fixed up /C so that arguments for the program
  55  *
  56  *    08-Jul-1998 (John P. Price)
  57  *        Now sets COMSPEC environment variable
  58  *        misc clean up and optimization
  59  *        added date and time commands
  60  *        changed to using spawnl instead of exec.  exec does not copy the
  61  *        environment to the child process!
  62  *
  63  *    14 Jul 1998 (Hans B Pufal)
  64  *        Reorganised source to be more efficient and to more closely
  65  *        follow MS-DOS conventions. (eg %..% environment variable
  66  *        replacement works form command line as well as batch file.
  67  *
  68  *        New organisation also properly support nested batch files.
  69  *
  70  *        New command table structure is half way towards providing a
  71  *        system in which COMMAND will find out what internal commands
  72  *        are loaded
  73  *
  74  *    24 Jul 1998 (Hans B Pufal) [HBP_003]
  75  *        Fixed return value when called with /C option
  76  *
  77  *    27 Jul 1998  John P. Price
  78  *        added config.h include
  79  *
  80  *    28 Jul 1998  John P. Price
  81  *        added showcmds function to show commands and options available
  82  *
  83  *    07-Aug-1998 (John P Price <linux-guru@gcfl.net>)
  84  *        Fixed carriage return output to better match MSDOS with echo
  85  *        on or off. (marked with "JPP 19980708")
  86  *
  87  *    07-Dec-1998 (Eric Kohl)
  88  *        First ReactOS release.
  89  *        Extended length of commandline buffers to 512.
  90  *
  91  *    13-Dec-1998 (Eric Kohl)
  92  *        Added COMSPEC environment variable.
  93  *        Added "/t" support (color) on cmd command line.
  94  *
  95  *    07-Jan-1999 (Eric Kohl)
  96  *        Added help text ("cmd /?").
  97  *
  98  *    25-Jan-1999 (Eric Kohl)
  99  *        Unicode and redirection safe!
 100  *        Fixed redirections and piping.
 101  *        Piping is based on temporary files, but basic support
 102  *        for anonymous pipes already exists.
 103  *
 104  *    27-Jan-1999 (Eric Kohl)
 105  *        Replaced spawnl() by CreateProcess().
 106  *
 107  *    22-Oct-1999 (Eric Kohl)
 108  *        Added break handler.
 109  *
 110  *    15-Dec-1999 (Eric Kohl)
 111  *        Fixed current directory
 112  *
 113  *    28-Dec-1999 (Eric Kohl)
 114  *        Restore window title after program/batch execution
 115  *
 116  *    03-Feb-2001 (Eric Kohl)
 117  *        Workaround because argc[0] is NULL under ReactOS
 118  *
 119  *    23-Feb-2001 (Carl Nettelblad <cnettel@hem.passagen.se>)
 120  *        %envvar% replacement conflicted with for.
 121  *
 122  *    30-Apr-2004 (Filip Navara <xnavara@volny.cz>)
 123  *       Make MakeSureDirectoryPathExistsEx unicode safe.
 124  *
 125  *    28-Mai-2004
 126  *       Removed MakeSureDirectoryPathExistsEx.
 127  *       Use the current directory if GetTempPath fails.
 128  *
 129  *    12-Jul-2004 (Jens Collin <jens.collin@lakhei.com>)
 130  *       Added ShellExecute call when all else fails to be able to "launch" any file.
 131  *
 132  *    02-Apr-2005 (Magnus Olsen <magnus@greatlord.com>)
 133  *        Remove all hardcode string to En.rc
 134  *
 135  *    06-May-2005 (Klemens Friedl <frik85@gmail.com>)
 136  *        Add 'help' command (list all commands plus description)
 137  *
 138  *    06-jul-2005 (Magnus Olsen <magnus@greatlord.com>)
 139  *        translate '%errorlevel%' to the internal value.
 140  *        Add proper memory alloc ProcessInput, the error
 141  *        handling for memory handling need to be improve
 142  */
 143
 144 #include "precomp.h"
 145 #include <reactos/buildno.h>
 146 #include <reactos/version.h>
 147
 148 typedef NTSTATUS (WINAPI *NtQueryInformationProcessProc)(HANDLE, PROCESSINFOCLASS,
 149                                                           PVOID, ULONG, PULONG);
 150 typedef NTSTATUS (WINAPI *NtReadVirtualMemoryProc)(HANDLE, PVOID, PVOID, ULONG, PULONG);
 151
 152 BOOL bExit = FALSE;       /* Indicates EXIT was typed */
 153 BOOL bCanExit = TRUE;     /* Indicates if this shell is exitable */
 154 BOOL bCtrlBreak = FALSE;  /* Ctrl-Break or Ctrl-C hit */
 155 BOOL bIgnoreEcho = FALSE; /* Set this to TRUE to prevent a newline, when executing a command */
 156 static BOOL fSingleCommand = 0; /* When we are executing something passed on the command line after /C or /K */
 157 INT  nErrorLevel = 0;     /* Errorlevel of last launched external program */
 158 CRITICAL_SECTION ChildProcessRunningLock;
 159 BOOL bDisableBatchEcho = FALSE;
 160 BOOL bEnableExtensions = TRUE;
 161 BOOL bDelayedExpansion = FALSE;
 162 DWORD dwChildProcessId = 0;
 163 LPTSTR lpOriginalEnvironment;
 164 HANDLE CMD_ModuleHandle;
 165
 166 BOOL bTitleSet = FALSE; /* Indicates whether the console title has been changed and needs to be restored later */
 167 TCHAR szCurTitle[MAX_PATH];
 168
 169 static NtQueryInformationProcessProc NtQueryInformationProcessPtr = NULL;
 170 static NtReadVirtualMemoryProc       NtReadVirtualMemoryPtr = NULL;
 171
 172 /*
 173  * Default output file stream translation mode is UTF8, but CMD switches
 174  * allow to change it to either UTF16 (/U) or ANSI (/A).
 175  */
 176 CON_STREAM_MODE OutputStreamMode = UTF8Text; // AnsiText;
 177
 178 #ifdef INCLUDE_CMD_COLOR
 179 WORD wDefColor = 0;     /* Default color */
 180 #endif
 181
 182 /*
 183  * convert
 184  *
 185  * insert commas into a number
 186  */
 187 INT
 188 ConvertULargeInteger(ULONGLONG num, LPTSTR des, UINT len, BOOL bPutSeparator)
 189 {
 190     TCHAR temp[39];   /* maximum length with nNumberGroups == 1 */
 191     UINT  n, iTarget;
 192
 193     if (len <= 1)
 194         return 0;
 195
 196     n = 0;
 197     iTarget = nNumberGroups;
 198     if (!nNumberGroups)
 199         bPutSeparator = FALSE;
 200
 201     do
 202     {
 203         if (iTarget == n && bPutSeparator)
 204         {
 205             iTarget += nNumberGroups + 1;
 206             temp[38 - n++] = cThousandSeparator;
 207         }
 208         temp[38 - n++] = (TCHAR)(num % 10) + _T('0');
 209         num /= 10;
 210     } while (num > 0);
 211     if (n > len-1)
 212         n = len-1;
 213
 214     memcpy(des, temp + 39 - n, n * sizeof(TCHAR));
 215     des[n] = _T('\0');
 216
 217     return n;
 218 }
 219
 220 /*
 221  * Is a process a console process?
 222  */
 223 static BOOL IsConsoleProcess(HANDLE Process)
 224 {
 225     NTSTATUS Status;
 226     PROCESS_BASIC_INFORMATION Info;
 227     PEB ProcessPeb;
 228     ULONG BytesRead;
 229
 230     if (NULL == NtQueryInformationProcessPtr || NULL == NtReadVirtualMemoryPtr)
 231     {
 232         return TRUE;
 233     }
 234
 235     Status = NtQueryInformationProcessPtr (
 236         Process, ProcessBasicInformation,
 237         &Info, sizeof(PROCESS_BASIC_INFORMATION), NULL);
 238     if (! NT_SUCCESS(Status))
 239     {
 240         WARN ("NtQueryInformationProcess failed with status %08x\n", Status);
 241         return TRUE;
 242     }
 243     Status = NtReadVirtualMemoryPtr (
 244         Process, Info.PebBaseAddress, &ProcessPeb,
 245         sizeof(PEB), &BytesRead);
 246     if (! NT_SUCCESS(Status) || sizeof(PEB) != BytesRead)
 247     {
 248         WARN ("Couldn't read virt mem status %08x bytes read %lu\n", Status, BytesRead);
 249         return TRUE;
 250     }
 251
 252     return IMAGE_SUBSYSTEM_WINDOWS_CUI == ProcessPeb.ImageSubsystem;
 253 }
 254
 255
 256
 257 #ifdef _UNICODE
 258 #define SHELLEXECUTETEXT    "ShellExecuteExW"
 259 #else
 260 #define SHELLEXECUTETEXT    "ShellExecuteExA"
 261 #endif
 262
 263 typedef BOOL (WINAPI *MYEX)(LPSHELLEXECUTEINFO lpExecInfo);
 264
 265 HANDLE RunFile(DWORD flags, LPTSTR filename, LPTSTR params,
 266                LPTSTR directory, INT show)
 267 {
 268     SHELLEXECUTEINFO sei;
 269     HMODULE     hShell32;
 270     MYEX        hShExt;
 271     BOOL        ret;
 272
 273     TRACE ("RunFile(%s)\n", debugstr_aw(filename));
 274     hShell32 = LoadLibrary(_T("SHELL32.DLL"));
 275     if (!hShell32)
 276     {
 277         WARN ("RunFile: couldn't load SHELL32.DLL!\n");
 278         return NULL;
 279     }
 280
 281     hShExt = (MYEX)(FARPROC)GetProcAddress(hShell32, SHELLEXECUTETEXT);
 282     if (!hShExt)
 283     {
 284         WARN ("RunFile: couldn't find ShellExecuteExA/W in SHELL32.DLL!\n");
 285         FreeLibrary(hShell32);
 286         return NULL;
 287     }
 288
 289     TRACE ("RunFile: ShellExecuteExA/W is at %x\n", hShExt);
 290
 291     memset(&sei, 0, sizeof sei);
 292     sei.cbSize = sizeof sei;
 293     sei.fMask = flags;
 294     sei.lpFile = filename;
 295     sei.lpParameters = params;
 296     sei.lpDirectory = directory;
 297     sei.nShow = show;
 298     ret = hShExt(&sei);
 299
 300     TRACE ("RunFile: ShellExecuteExA/W returned 0x%p\n", ret);
 301
 302     FreeLibrary(hShell32);
 303     return ret ? sei.hProcess : NULL;
 304 }
 305
 306
 307 static VOID
 308 SetConTitle(LPCTSTR pszTitle)
 309 {
 310     TCHAR szNewTitle[MAX_PATH];
 311
 312     if (!pszTitle)
 313         return;
 314
 315     /* Don't do anything if we run inside a batch file, or we are just running a single command */
 316     if (bc || (fSingleCommand == 1))
 317         return;
 318
 319     /* Save the original console title and build a new one */
 320     GetConsoleTitle(szCurTitle, ARRAYSIZE(szCurTitle));
 321     StringCchPrintf(szNewTitle, ARRAYSIZE(szNewTitle),
 322                     _T("%s - %s"), szCurTitle, pszTitle);
 323     bTitleSet = TRUE;
 324     ConSetTitle(szNewTitle);
 325 }
 326
 327 static VOID
 328 ResetConTitle(VOID)
 329 {
 330     /* Restore the original console title */
 331     if (!bc && bTitleSet)
 332     {
 333         ConSetTitle(szCurTitle);
 334         bTitleSet = FALSE;
 335     }
 336 }
 337
 338 /*
 339  * This command (in First) was not found in the command table
 340  *
 341  * Full  - output buffer to hold whole command line
 342  * First - first word on command line
 343  * Rest  - rest of command line
 344  */
 345 static INT
 346 Execute(LPTSTR Full, LPTSTR First, LPTSTR Rest, PARSED_COMMAND *Cmd)
 347 {
 348     TCHAR *first, *rest, *dot;
 349     DWORD dwExitCode = 0;
 350     TCHAR *FirstEnd;
 351     TCHAR szFullName[MAX_PATH];
 352     TCHAR szFullCmdLine[CMDLINE_LENGTH];
 353
 354     TRACE ("Execute: \'%s\' \'%s\'\n", debugstr_aw(First), debugstr_aw(Rest));
 355
 356     /* Though it was already parsed once, we have a different set of rules
 357        for parsing before we pass to CreateProcess */
 358     if (First[0] == _T('/') || (First[0] && First[1] == _T(':')))
 359     {
 360         /* Use the entire first word as the program name (no change) */
 361         FirstEnd = First + _tcslen(First);
 362     }
 363     else
 364     {
 365         /* If present in the first word, spaces and ,;=/ end the program
 366          * name and become the beginning of its parameters. */
 367         BOOL bInside = FALSE;
 368         for (FirstEnd = First; *FirstEnd; FirstEnd++)
 369         {
 370             if (!bInside && (_istspace(*FirstEnd) || _tcschr(_T(",;=/"), *FirstEnd)))
 371                 break;
 372             bInside ^= *FirstEnd == _T('"');
 373         }
 374     }
 375
 376     /* Copy the new first/rest into the buffer */
 377     rest = &Full[FirstEnd - First + 1];
 378     _tcscpy(rest, FirstEnd);
 379     _tcscat(rest, Rest);
 380     first = Full;
 381     *FirstEnd = _T('\0');
 382     _tcscpy(first, First);
 383
 384     /* check for a drive change */
 385     if ((_istalpha (first[0])) && (!_tcscmp (first + 1, _T(":"))))
 386     {
 387         BOOL working = TRUE;
 388         if (!SetCurrentDirectory(first))
 389         {
 390             /* Guess they changed disc or something, handle that gracefully and get to root */
 391             TCHAR str[4];
 392             str[0]=first[0];
 393             str[1]=_T(':');
 394             str[2]=_T('\\');
 395             str[3]=0;
 396             working = SetCurrentDirectory(str);
 397         }
 398
 399         if (!working) ConErrResPuts (STRING_FREE_ERROR1);
 400         return !working;
 401     }
 402
 403     /* get the PATH environment variable and parse it */
 404     /* search the PATH environment variable for the binary */
 405     StripQuotes(First);
 406     if (!SearchForExecutable(First, szFullName))
 407     {
 408         error_bad_command(first);
 409         return 1;
 410     }
 411
 412     /* Set the new console title */
 413     FirstEnd = first + (FirstEnd - First); /* Point to the separating NULL in the full built string */
 414     *FirstEnd = _T(' ');
 415     SetConTitle(Full);
 416
 417     /* check if this is a .BAT or .CMD file */
 418     dot = _tcsrchr (szFullName, _T('.'));
 419     if (dot && (!_tcsicmp (dot, _T(".bat")) || !_tcsicmp (dot, _T(".cmd"))))
 420     {
 421         while (*rest == _T(' '))
 422             rest++;
 423
 424         *FirstEnd = _T('\0');
 425         TRACE ("[BATCH: %s %s]\n", debugstr_aw(szFullName), debugstr_aw(rest));
 426         dwExitCode = Batch(szFullName, first, rest, Cmd);
 427     }
 428     else
 429     {
 430         /* exec the program */
 431         PROCESS_INFORMATION prci;
 432         STARTUPINFO stui;
 433
 434         /* build command line for CreateProcess(): FullName + " " + rest */
 435         BOOL quoted = !!_tcschr(First, _T(' '));
 436         _tcscpy(szFullCmdLine, quoted ? _T("\"") : _T(""));
 437         _tcsncat(szFullCmdLine, First, CMDLINE_LENGTH - _tcslen(szFullCmdLine) - 1);
 438         _tcsncat(szFullCmdLine, quoted ? _T("\"") : _T(""), CMDLINE_LENGTH - _tcslen(szFullCmdLine) - 1);
 439
 440         if (*rest)
 441         {
 442             _tcsncat(szFullCmdLine, _T(" "), CMDLINE_LENGTH - _tcslen(szFullCmdLine) - 1);
 443             _tcsncat(szFullCmdLine, rest, CMDLINE_LENGTH - _tcslen(szFullCmdLine) - 1);
 444         }
 445
 446         TRACE ("[EXEC: %s]\n", debugstr_aw(szFullCmdLine));
 447
 448         /* fill startup info */
 449         memset(&stui, 0, sizeof(stui));
 450         stui.cb = sizeof(stui);
 451         stui.lpTitle = Full;
 452         stui.dwFlags = STARTF_USESHOWWINDOW;
 453         stui.wShowWindow = SW_SHOWDEFAULT;
 454
 455         /* Set the console to standard mode */
 456         SetConsoleMode(ConStreamGetOSHandle(StdIn),
 457                        ENABLE_PROCESSED_INPUT | ENABLE_LINE_INPUT | ENABLE_ECHO_INPUT);
 458
 459         if (CreateProcess(szFullName,
 460                           szFullCmdLine,
 461                           NULL,
 462                           NULL,
 463                           TRUE,
 464                           0,
 465                           NULL,
 466                           NULL,
 467                           &stui,
 468                           &prci))
 469         {
 470             CloseHandle(prci.hThread);
 471         }
 472         else
 473         {
 474             // See if we can run this with ShellExecute() ie myfile.xls
 475             prci.hProcess = RunFile(SEE_MASK_NOCLOSEPROCESS | SEE_MASK_NO_CONSOLE,
 476                                     szFullName,
 477                                     rest,
 478                                     NULL,
 479                                     SW_SHOWNORMAL);
 480         }
 481
 482         *FirstEnd = _T('\0');
 483
 484         if (prci.hProcess != NULL)
 485         {
 486             if (bc != NULL || fSingleCommand != 0 || IsConsoleProcess(prci.hProcess))
 487             {
 488                 /* when processing a batch file or starting console processes: execute synchronously */
 489                 EnterCriticalSection(&ChildProcessRunningLock);
 490                 dwChildProcessId = prci.dwProcessId;
 491
 492                 WaitForSingleObject(prci.hProcess, INFINITE);
 493
 494                 LeaveCriticalSection(&ChildProcessRunningLock);
 495
 496                 GetExitCodeProcess(prci.hProcess, &dwExitCode);
 497                 nErrorLevel = (INT)dwExitCode;
 498             }
 499             CloseHandle(prci.hProcess);
 500         }
 501         else
 502         {
 503             TRACE ("[ShellExecute failed!: %s]\n", debugstr_aw(Full));
 504             error_bad_command(first);
 505             dwExitCode = 1;
 506         }
 507
 508         /* Restore our default console mode */
 509         SetConsoleMode(ConStreamGetOSHandle(StdIn),
 510                        ENABLE_PROCESSED_INPUT | ENABLE_LINE_INPUT | ENABLE_ECHO_INPUT);
 511         SetConsoleMode(ConStreamGetOSHandle(StdOut),
 512                        ENABLE_PROCESSED_OUTPUT | ENABLE_WRAP_AT_EOL_OUTPUT);
 513     }
 514
 515     /* Update our local codepage cache */
 516     {
 517         UINT uNewInputCodePage  = GetConsoleCP();
 518         UINT uNewOutputCodePage = GetConsoleOutputCP();
 519
 520         if ((InputCodePage  != uNewInputCodePage) ||
 521             (OutputCodePage != uNewOutputCodePage))
 522         {
 523             /* Update the locale as well */
 524             InitLocale();
 525         }
 526
 527         InputCodePage  = uNewInputCodePage;
 528         OutputCodePage = uNewOutputCodePage;
 529
 530         /* Update the streams codepage cache as well */
 531         ConStreamSetCacheCodePage(StdIn , InputCodePage );
 532         ConStreamSetCacheCodePage(StdOut, OutputCodePage);
 533         ConStreamSetCacheCodePage(StdErr, OutputCodePage);
 534     }
 535
 536     /* Restore the original console title */
 537     ResetConTitle();
 538
 539     return dwExitCode;
 540 }
 541
 542
 543 /*
 544  * look through the internal commands and determine whether or not this
 545  * command is one of them.  If it is, call the command.  If not, call
 546  * execute to run it as an external program.
 547  *
 548  * first - first word on command line
 549  * rest  - rest of command line
 550  */
 551 INT
 552 DoCommand(LPTSTR first, LPTSTR rest, PARSED_COMMAND *Cmd)
 553 {
 554     TCHAR *com;
 555     TCHAR *cp;
 556     LPTSTR param;   /* pointer to command's parameters */
 557     INT cl;
 558     LPCOMMAND cmdptr;
 559     BOOL nointernal = FALSE;
 560     INT ret;
 561
 562     TRACE ("DoCommand: (\'%s\' \'%s\')\n", debugstr_aw(first), debugstr_aw(rest));
 563
 564     /* full command line */
 565     com = cmd_alloc((_tcslen(first) + _tcslen(rest) + 2) * sizeof(TCHAR));
 566     if (com == NULL)
 567     {
 568         error_out_of_memory();
 569         return 1;
 570     }
 571
 572     /* If present in the first word, these characters end the name of an
 573      * internal command and become the beginning of its parameters. */
 574     cp = first + _tcscspn(first, _T("\t +,/;=[]"));
 575
 576     for (cl = 0; cl < (cp - first); cl++)
 577     {
 578         /* These characters do it too, but if one of them is present,
 579          * then we check to see if the word is a file name and skip
 580          * checking for internal commands if so.
 581          * This allows running programs with names like "echo.exe" */
 582         if (_tcschr(_T(".:\\"), first[cl]))
 583         {
 584             TCHAR tmp = *cp;
 585             *cp = _T('\0');
 586             nointernal = IsExistingFile(first);
 587             *cp = tmp;
 588             break;
 589         }
 590     }
 591
 592     /* Scan internal command table */
 593     for (cmdptr = cmds; !nointernal && cmdptr->name; cmdptr++)
 594     {
 595         if (!_tcsnicmp(first, cmdptr->name, cl) && cmdptr->name[cl] == _T('\0'))
 596         {
 597             _tcscpy(com, first);
 598             _tcscat(com, rest);
 599             param = &com[cl];
 600
 601             /* Skip over whitespace to rest of line, exclude 'echo' command */
 602             if (_tcsicmp(cmdptr->name, _T("echo")) != 0)
 603             {
 604                 while (_istspace(*param))
 605                     param++;
 606             }
 607
 608             /* Set the new console title */
 609             SetConTitle(com);
 610
 611             ret = cmdptr->func(param);
 612
 613             /* Restore the original console title */
 614             ResetConTitle();
 615
 616             cmd_free(com);
 617             return ret;
 618         }
 619     }
 620
 621     ret = Execute(com, first, rest, Cmd);
 622     cmd_free(com);
 623     return ret;
 624 }
 625
 626
 627 /*
 628  * process the command line and execute the appropriate functions
 629  * full input/output redirection and piping are supported
 630  */
 631 INT ParseCommandLine(LPTSTR cmd)
 632 {
 633     INT Ret = 0;
 634     PARSED_COMMAND *Cmd = ParseCommand(cmd);
 635     if (Cmd)
 636     {
 637         Ret = ExecuteCommand(Cmd);
 638         FreeCommand(Cmd);
 639     }
 640     return Ret;
 641 }
 642
 643 /* Execute a command without waiting for it to finish. If it's an internal
 644  * command or batch file, we must create a new cmd.exe process to handle it.
 645  * TODO: For now, this just always creates a cmd.exe process.
 646  *       This works, but is inefficient for running external programs,
 647  *       which could just be run directly. */
 648 static HANDLE
 649 ExecuteAsync(PARSED_COMMAND *Cmd)
 650 {
 651     TCHAR CmdPath[MAX_PATH];
 652     TCHAR CmdParams[CMDLINE_LENGTH], *ParamsEnd;
 653     STARTUPINFO stui;
 654     PROCESS_INFORMATION prci;
 655
 656     /* Get the path to cmd.exe */
 657     GetModuleFileName(NULL, CmdPath, ARRAYSIZE(CmdPath));
 658
 659     /* Build the parameter string to pass to cmd.exe */
 660     ParamsEnd = _stpcpy(CmdParams, _T("/S/D/C\""));
 661     ParamsEnd = Unparse(Cmd, ParamsEnd, &CmdParams[CMDLINE_LENGTH - 2]);
 662     if (!ParamsEnd)
 663     {
 664         error_out_of_memory();
 665         return NULL;
 666     }
 667     _tcscpy(ParamsEnd, _T("\""));
 668
 669     memset(&stui, 0, sizeof stui);
 670     stui.cb = sizeof(STARTUPINFO);
 671     if (!CreateProcess(CmdPath, CmdParams, NULL, NULL, TRUE, 0,
 672                        NULL, NULL, &stui, &prci))
 673     {
 674         ErrorMessage(GetLastError(), NULL);
 675         return NULL;
 676     }
 677
 678     CloseHandle(prci.hThread);
 679     return prci.hProcess;
 680 }
 681
 682 static INT
 683 ExecutePipeline(PARSED_COMMAND *Cmd)
 684 {
 685 #ifdef FEATURE_REDIRECTION
 686     HANDLE hInput = NULL;
 687     HANDLE hOldConIn = GetStdHandle(STD_INPUT_HANDLE);
 688     HANDLE hOldConOut = GetStdHandle(STD_OUTPUT_HANDLE);
 689     HANDLE hProcess[MAXIMUM_WAIT_OBJECTS];
 690     INT nProcesses = 0;
 691     DWORD dwExitCode;
 692
 693     /* Do all but the last pipe command */
 694     do
 695     {
 696         HANDLE hPipeRead, hPipeWrite;
 697         if (nProcesses > (MAXIMUM_WAIT_OBJECTS - 2))
 698         {
 699             error_too_many_parameters(_T("|"));
 700             goto failed;
 701         }
 702
 703         /* Create the pipe that this process will write into.
 704          * Make the handles non-inheritable initially, because this
 705          * process shouldn't inherit the reading handle. */
 706         if (!CreatePipe(&hPipeRead, &hPipeWrite, NULL, 0))
 707         {
 708             error_no_pipe();
 709             goto failed;
 710         }
 711
 712         /* The writing side of the pipe is STDOUT for this process */
 713         SetHandleInformation(hPipeWrite, HANDLE_FLAG_INHERIT, HANDLE_FLAG_INHERIT);
 714         SetStdHandle(STD_OUTPUT_HANDLE, hPipeWrite);
 715
 716         /* Execute it (error check is done later for easier cleanup) */
 717         hProcess[nProcesses] = ExecuteAsync(Cmd->Subcommands);
 718         CloseHandle(hPipeWrite);
 719         if (hInput)
 720             CloseHandle(hInput);
 721
 722         /* The reading side of the pipe will be STDIN for the next process */
 723         SetHandleInformation(hPipeRead, HANDLE_FLAG_INHERIT, HANDLE_FLAG_INHERIT);
 724         SetStdHandle(STD_INPUT_HANDLE, hPipeRead);
 725         hInput = hPipeRead;
 726
 727         if (!hProcess[nProcesses])
 728             goto failed;
 729         nProcesses++;
 730
 731         Cmd = Cmd->Subcommands->Next;
 732     } while (Cmd->Type == C_PIPE);
 733
 734     /* The last process uses the original STDOUT */
 735     SetStdHandle(STD_OUTPUT_HANDLE, hOldConOut);
 736     hProcess[nProcesses] = ExecuteAsync(Cmd);
 737     if (!hProcess[nProcesses])
 738         goto failed;
 739     nProcesses++;
 740     CloseHandle(hInput);
 741     SetStdHandle(STD_INPUT_HANDLE, hOldConIn);
 742
 743     /* Wait for all processes to complete */
 744     EnterCriticalSection(&ChildProcessRunningLock);
 745     WaitForMultipleObjects(nProcesses, hProcess, TRUE, INFINITE);
 746     LeaveCriticalSection(&ChildProcessRunningLock);
 747
 748     /* Use the exit code of the last process in the pipeline */
 749     GetExitCodeProcess(hProcess[nProcesses - 1], &dwExitCode);
 750     nErrorLevel = (INT)dwExitCode;
 751
 752     while (--nProcesses >= 0)
 753         CloseHandle(hProcess[nProcesses]);
 754     return nErrorLevel;
 755
 756 failed:
 757     if (hInput)
 758         CloseHandle(hInput);
 759     while (--nProcesses >= 0)
 760     {
 761         TerminateProcess(hProcess[nProcesses], 0);
 762         CloseHandle(hProcess[nProcesses]);
 763     }
 764     SetStdHandle(STD_INPUT_HANDLE, hOldConIn);
 765     SetStdHandle(STD_OUTPUT_HANDLE, hOldConOut);
 766 #endif
 767
 768     return nErrorLevel;
 769 }
 770
 771 INT
 772 ExecuteCommand(PARSED_COMMAND *Cmd)
 773 {
 774     PARSED_COMMAND *Sub;
 775     LPTSTR First, Rest;
 776     INT Ret = 0;
 777
 778     if (!PerformRedirection(Cmd->Redirections))
 779         return 1;
 780
 781     switch (Cmd->Type)
 782     {
 783     case C_COMMAND:
 784         Ret = 1;
 785         First = DoDelayedExpansion(Cmd->Command.First);
 786         if (First)
 787         {
 788             Rest = DoDelayedExpansion(Cmd->Command.Rest);
 789             if (Rest)
 790             {
 791                 Ret = DoCommand(First, Rest, Cmd);
 792                 cmd_free(Rest);
 793             }
 794             cmd_free(First);
 795         }
 796         break;
 797     case C_QUIET:
 798     case C_BLOCK:
 799     case C_MULTI:
 800         for (Sub = Cmd->Subcommands; Sub; Sub = Sub->Next)
 801             Ret = ExecuteCommand(Sub);
 802         break;
 803     case C_IFFAILURE:
 804         Sub = Cmd->Subcommands;
 805         Ret = ExecuteCommand(Sub);
 806         if (Ret != 0)
 807         {
 808             nErrorLevel = Ret;
 809             Ret = ExecuteCommand(Sub->Next);
 810         }
 811         break;
 812     case C_IFSUCCESS:
 813         Sub = Cmd->Subcommands;
 814         Ret = ExecuteCommand(Sub);
 815         if (Ret == 0)
 816             Ret = ExecuteCommand(Sub->Next);
 817         break;
 818     case C_PIPE:
 819         Ret = ExecutePipeline(Cmd);
 820         break;
 821     case C_IF:
 822         Ret = ExecuteIf(Cmd);
 823         break;
 824     case C_FOR:
 825         Ret = ExecuteFor(Cmd);
 826         break;
 827     }
 828
 829     UndoRedirection(Cmd->Redirections, NULL);
 830     return Ret;
 831 }
 832
 833 LPTSTR
 834 GetEnvVar(LPCTSTR varName)
 835 {
 836     static LPTSTR ret = NULL;
 837     UINT size;
 838
 839     cmd_free(ret);
 840     ret = NULL;
 841     size = GetEnvironmentVariable(varName, NULL, 0);
 842     if (size > 0)
 843     {
 844         ret = cmd_alloc(size * sizeof(TCHAR));
 845         if (ret != NULL)
 846             GetEnvironmentVariable(varName, ret, size + 1);
 847     }
 848     return ret;
 849 }
 850
 851 LPCTSTR
 852 GetEnvVarOrSpecial(LPCTSTR varName)
 853 {
 854     static TCHAR ret[MAX_PATH];
 855
 856     LPTSTR var = GetEnvVar(varName);
 857     if (var)
 858         return var;
 859
 860     /* env var doesn't exist, look for a "special" one */
 861     /* %CD% */
 862     if (_tcsicmp(varName,_T("cd")) ==0)
 863     {
 864         GetCurrentDirectory(MAX_PATH, ret);
 865         return ret;
 866     }
 867     /* %TIME% */
 868     else if (_tcsicmp(varName,_T("time")) ==0)
 869     {
 870         return GetTimeString();
 871     }
 872     /* %DATE% */
 873     else if (_tcsicmp(varName,_T("date")) ==0)
 874     {
 875         return GetDateString();
 876     }
 877
 878     /* %RANDOM% */
 879     else if (_tcsicmp(varName,_T("random")) ==0)
 880     {
 881         /* Get random number */
 882         _itot(rand(),ret,10);
 883         return ret;
 884     }
 885
 886     /* %CMDCMDLINE% */
 887     else if (_tcsicmp(varName,_T("cmdcmdline")) ==0)
 888     {
 889         return GetCommandLine();
 890     }
 891
 892     /* %CMDEXTVERSION% */
 893     else if (_tcsicmp(varName,_T("cmdextversion")) ==0)
 894     {
 895         /* Set version number to 2 */
 896         _itot(2,ret,10);
 897         return ret;
 898     }
 899
 900     /* %ERRORLEVEL% */
 901     else if (_tcsicmp(varName,_T("errorlevel")) ==0)
 902     {
 903         _itot(nErrorLevel,ret,10);
 904         return ret;
 905     }
 906
 907     return NULL;
 908 }
 909
 910 /* Handle the %~var syntax */
 911 static LPTSTR
 912 GetEnhancedVar(TCHAR **pFormat, LPTSTR (*GetVar)(TCHAR, BOOL *))
 913 {
 914     static const TCHAR ModifierTable[] = _T("dpnxfsatz");
 915     enum {
 916         M_DRIVE = 1,   /* D: drive letter */
 917         M_PATH  = 2,   /* P: path */
 918         M_NAME  = 4,   /* N: filename */
 919         M_EXT   = 8,   /* X: extension */
 920         M_FULL  = 16,  /* F: full path (drive+path+name+ext) */
 921         M_SHORT = 32,  /* S: full path (drive+path+name+ext), use short names */
 922         M_ATTR  = 64,  /* A: attributes */
 923         M_TIME  = 128, /* T: modification time */
 924         M_SIZE  = 256, /* Z: file size */
 925     } Modifiers = 0;
 926
 927     TCHAR *Format, *FormatEnd;
 928     TCHAR *PathVarName = NULL;
 929     LPTSTR Variable;
 930     TCHAR *VarEnd;
 931     BOOL VariableIsParam0;
 932     TCHAR FullPath[MAX_PATH];
 933     TCHAR FixedPath[MAX_PATH], *Filename, *Extension;
 934     HANDLE hFind;
 935     WIN32_FIND_DATA w32fd;
 936     TCHAR *In, *Out;
 937
 938     static TCHAR Result[CMDLINE_LENGTH];
 939
 940     /* There is ambiguity between modifier characters and FOR variables;
 941      * the rule that cmd uses is to pick the longest possible match.
 942      * For example, if there is a %n variable, then out of %~anxnd,
 943      * %~anxn will be substituted rather than just %~an. */
 944
 945     /* First, go through as many modifier characters as possible */
 946     FormatEnd = Format = *pFormat;
 947     while (*FormatEnd && _tcschr(ModifierTable, _totlower(*FormatEnd)))
 948         FormatEnd++;
 949
 950     if (*FormatEnd == _T('$'))
 951     {
 952         /* $PATH: syntax */
 953         PathVarName = FormatEnd + 1;
 954         FormatEnd = _tcschr(PathVarName, _T(':'));
 955         if (!FormatEnd)
 956             return NULL;
 957
 958         /* Must be immediately followed by the variable */
 959         Variable = GetVar(*++FormatEnd, &VariableIsParam0);
 960         if (!Variable)
 961             return NULL;
 962     }
 963     else
 964     {
 965         /* Backtrack if necessary to get a variable name match */
 966         while (!(Variable = GetVar(*FormatEnd, &VariableIsParam0)))
 967         {
 968             if (FormatEnd == Format)
 969                 return NULL;
 970             FormatEnd--;
 971         }
 972     }
 973
 974     for (; Format < FormatEnd && *Format != _T('$'); Format++)
 975         Modifiers |= 1 << (_tcschr(ModifierTable, _totlower(*Format)) - ModifierTable);
 976
 977     *pFormat = FormatEnd + 1;
 978
 979     /* Exclude the leading and trailing quotes */
 980     VarEnd = &Variable[_tcslen(Variable)];
 981     if (*Variable == _T('"'))
 982     {
 983         Variable++;
 984         if (VarEnd > Variable && VarEnd[-1] == _T('"'))
 985             VarEnd--;
 986     }
 987
 988     if ((char *)VarEnd - (char *)Variable >= sizeof Result)
 989         return _T("");
 990     memcpy(Result, Variable, (char *)VarEnd - (char *)Variable);
 991     Result[VarEnd - Variable] = _T('\0');
 992
 993     if (PathVarName)
 994     {
 995         /* $PATH: syntax - search the directories listed in the
 996          * specified environment variable for the file */
 997         LPTSTR PathVar;
 998         FormatEnd[-1] = _T('\0');
 999         PathVar = GetEnvVar(PathVarName);
1000         FormatEnd[-1] = _T(':');
1001         if (!PathVar ||
1002             !SearchPath(PathVar, Result, NULL, MAX_PATH, FullPath, NULL))
1003         {
1004             return _T("");
1005         }
1006     }
1007     else if (Modifiers == 0)
1008     {
1009         /* For plain %~var with no modifiers, just return the variable without quotes */
1010         return Result;
1011     }
1012     else if (VariableIsParam0)
1013     {
1014         /* Special case: If the variable is %0 and modifier characters are present,
1015          * use the batch file's path (which includes the .bat/.cmd extension)
1016          * rather than the actual %0 variable (which might not). */
1017         _tcscpy(FullPath, bc->BatchFilePath);
1018     }
1019     else
1020     {
1021         /* Convert the variable, now without quotes, to a full path */
1022         if (!GetFullPathName(Result, MAX_PATH, FullPath, NULL))
1023             return _T("");
1024     }
1025
1026     /* Next step is to change the path to fix letter case (e.g.
1027      * C:\ReAcToS -> C:\ReactOS) and, if requested with the S modifier,
1028      * replace long filenames with short. */
1029
1030     In = FullPath;
1031     Out = FixedPath;
1032
1033     /* Copy drive letter */
1034     *Out++ = *In++;
1035     *Out++ = *In++;
1036     *Out++ = *In++;
1037     /* Loop over each \-separated component in the path */
1038     do {
1039         TCHAR *Next = _tcschr(In, _T('\\'));
1040         if (Next)
1041             *Next++ = _T('\0');
1042         /* Use FindFirstFile to get the correct name */
1043         if (Out + _tcslen(In) + 1 >= &FixedPath[MAX_PATH])
1044             return _T("");
1045         _tcscpy(Out, In);
1046         hFind = FindFirstFile(FixedPath, &w32fd);
1047         /* If it doesn't exist, just leave the name as it was given */
1048         if (hFind != INVALID_HANDLE_VALUE)
1049         {
1050             LPTSTR FixedComponent = w32fd.cFileName;
1051             if (*w32fd.cAlternateFileName &&
1052                 ((Modifiers & M_SHORT) || !_tcsicmp(In, w32fd.cAlternateFileName)))
1053             {
1054                 FixedComponent = w32fd.cAlternateFileName;
1055             }
1056             FindClose(hFind);
1057
1058             if (Out + _tcslen(FixedComponent) + 1 >= &FixedPath[MAX_PATH])
1059                 return _T("");
1060             _tcscpy(Out, FixedComponent);
1061         }
1062         Filename = Out;
1063         Out += _tcslen(Out);
1064         *Out++ = _T('\\');
1065
1066         In = Next;
1067     } while (In != NULL);
1068     Out[-1] = _T('\0');
1069
1070     /* Build the result string. Start with attributes, modification time, and
1071      * file size. If the file didn't exist, these fields will all be empty. */
1072     Out = Result;
1073     if (hFind != INVALID_HANDLE_VALUE)
1074     {
1075         if (Modifiers & M_ATTR)
1076         {
1077             static const struct {
1078                 TCHAR Character;
1079                 WORD  Value;
1080             } *Attrib, Table[] = {
1081                 { _T('d'), FILE_ATTRIBUTE_DIRECTORY },
1082                 { _T('r'), FILE_ATTRIBUTE_READONLY },
1083                 { _T('a'), FILE_ATTRIBUTE_ARCHIVE },
1084                 { _T('h'), FILE_ATTRIBUTE_HIDDEN },
1085                 { _T('s'), FILE_ATTRIBUTE_SYSTEM },
1086                 { _T('c'), FILE_ATTRIBUTE_COMPRESSED },
1087                 { _T('o'), FILE_ATTRIBUTE_OFFLINE },
1088                 { _T('t'), FILE_ATTRIBUTE_TEMPORARY },
1089                 { _T('l'), FILE_ATTRIBUTE_REPARSE_POINT },
1090             };
1091             for (Attrib = Table; Attrib != &Table[9]; Attrib++)
1092             {
1093                 *Out++ = w32fd.dwFileAttributes & Attrib->Value
1094                          ? Attrib->Character
1095                          : _T('-');
1096             }
1097             *Out++ = _T(' ');
1098         }
1099         if (Modifiers & M_TIME)
1100         {
1101             FILETIME ft;
1102             SYSTEMTIME st;
1103             FileTimeToLocalFileTime(&w32fd.ftLastWriteTime, &ft);
1104             FileTimeToSystemTime(&ft, &st);
1105
1106             Out += FormatDate(Out, &st, TRUE);
1107             *Out++ = _T(' ');
1108             Out += FormatTime(Out, &st);
1109             *Out++ = _T(' ');
1110         }
1111         if (Modifiers & M_SIZE)
1112         {
1113             ULARGE_INTEGER Size;
1114             Size.LowPart = w32fd.nFileSizeLow;
1115             Size.HighPart = w32fd.nFileSizeHigh;
1116             Out += _stprintf(Out, _T("%I64u "), Size.QuadPart);
1117         }
1118     }
1119
1120     /* When using the path-searching syntax or the S modifier,
1121      * at least part of the file path is always included.
1122      * If none of the DPNX modifiers are present, include the full path */
1123     if (PathVarName || (Modifiers & M_SHORT))
1124         if ((Modifiers & (M_DRIVE | M_PATH | M_NAME | M_EXT)) == 0)
1125             Modifiers |= M_FULL;
1126
1127     /* Now add the requested parts of the name.
1128      * With the F modifier, add all parts to form the full path. */
1129     Extension = _tcsrchr(Filename, _T('.'));
1130     if (Modifiers & (M_DRIVE | M_FULL))
1131     {
1132         *Out++ = FixedPath[0];
1133         *Out++ = FixedPath[1];
1134     }
1135     if (Modifiers & (M_PATH | M_FULL))
1136     {
1137         memcpy(Out, &FixedPath[2], (char *)Filename - (char *)&FixedPath[2]);
1138         Out += Filename - &FixedPath[2];
1139     }
1140     if (Modifiers & (M_NAME | M_FULL))
1141     {
1142         while (*Filename && Filename != Extension)
1143             *Out++ = *Filename++;
1144     }
1145     if (Modifiers & (M_EXT | M_FULL))
1146     {
1147         if (Extension)
1148             Out = _stpcpy(Out, Extension);
1149     }
1150
1151     /* Trim trailing space which otherwise would appear as a
1152      * result of using the A/T/Z modifiers but no others. */
1153     while (Out != &Result[0] && Out[-1] == _T(' '))
1154         Out--;
1155     *Out = _T('\0');
1156
1157     return Result;
1158 }
1159
1160 LPCTSTR
1161 GetBatchVar(TCHAR *varName, UINT *varNameLen)
1162 {
1163     LPCTSTR ret;
1164     TCHAR *varNameEnd;
1165     BOOL dummy;
1166
1167     *varNameLen = 1;
1168
1169     switch ( *varName )
1170     {
1171     case _T('~'):
1172         varNameEnd = varName + 1;
1173         ret = GetEnhancedVar(&varNameEnd, FindArg);
1174         if (!ret)
1175         {
1176             error_syntax(varName);
1177             return NULL;
1178         }
1179         *varNameLen = varNameEnd - varName;
1180         return ret;
1181     case _T('0'):
1182     case _T('1'):
1183     case _T('2'):
1184     case _T('3'):
1185     case _T('4'):
1186     case _T('5'):
1187     case _T('6'):
1188     case _T('7'):
1189     case _T('8'):
1190     case _T('9'):
1191         return FindArg(*varName, &dummy);
1192
1193     case _T('*'):
1194         //
1195         // Copy over the raw params(not including the batch file name
1196         //
1197         return bc->raw_params;
1198
1199     case _T('%'):
1200         return _T("%");
1201     }
1202     return NULL;
1203 }
1204
1205 BOOL
1206 SubstituteVars(TCHAR *Src, TCHAR *Dest, TCHAR Delim)
1207 {
1208 #define APPEND(From, Length) { \
1209     if (Dest + (Length) > DestEnd) \
1210         goto too_long; \
1211     memcpy(Dest, From, (Length) * sizeof(TCHAR)); \
1212     Dest += Length; }
1213 #define APPEND1(Char) { \
1214     if (Dest >= DestEnd) \
1215         goto too_long; \
1216     *Dest++ = Char; }
1217
1218     TCHAR *DestEnd = Dest + CMDLINE_LENGTH - 1;
1219     const TCHAR *Var;
1220     int VarLength;
1221     TCHAR *SubstStart;
1222     TCHAR EndChr;
1223     while (*Src)
1224     {
1225         if (*Src != Delim)
1226         {
1227             APPEND1(*Src++)
1228             continue;
1229         }
1230
1231         Src++;
1232         if (bc && Delim == _T('%'))
1233         {
1234             UINT NameLen;
1235             Var = GetBatchVar(Src, &NameLen);
1236             if (Var != NULL)
1237             {
1238                 VarLength = _tcslen(Var);
1239                 APPEND(Var, VarLength)
1240                 Src += NameLen;
1241                 continue;
1242             }
1243         }
1244
1245         /* Find the end of the variable name. A colon (:) will usually
1246          * end the name and begin the optional modifier, but not if it
1247          * is immediately followed by the delimiter (%VAR:%). */
1248         SubstStart = Src;
1249         while (*Src != Delim && !(*Src == _T(':') && Src[1] != Delim))
1250         {
1251             if (!*Src)
1252                 goto bad_subst;
1253             Src++;
1254         }
1255
1256         EndChr = *Src;
1257         *Src = _T('\0');
1258         Var = GetEnvVarOrSpecial(SubstStart);
1259         *Src++ = EndChr;
1260         if (Var == NULL)
1261         {
1262             /* In a batch file, %NONEXISTENT% "expands" to an empty string */
1263             if (bc)
1264                 continue;
1265             goto bad_subst;
1266         }
1267         VarLength = _tcslen(Var);
1268
1269         if (EndChr == Delim)
1270         {
1271             /* %VAR% - use as-is */
1272             APPEND(Var, VarLength)
1273         }
1274         else if (*Src == _T('~'))
1275         {
1276             /* %VAR:~[start][,length]% - substring
1277              * Negative values are offsets from the end */
1278             int Start = _tcstol(Src + 1, &Src, 0);
1279             int End = VarLength;
1280             if (Start < 0)
1281                 Start += VarLength;
1282             Start = max(Start, 0);
1283             Start = min(Start, VarLength);
1284             if (*Src == _T(','))
1285             {
1286                 End = _tcstol(Src + 1, &Src, 0);
1287                 End += (End < 0) ? VarLength : Start;
1288                 End = max(End, Start);
1289                 End = min(End, VarLength);
1290             }
1291             if (*Src++ != Delim)
1292                 goto bad_subst;
1293             APPEND(&Var[Start], End - Start);
1294         }
1295         else
1296         {
1297             /* %VAR:old=new% - replace all occurrences of old with new
1298              * %VAR:*old=new% - replace first occurrence only,
1299              *                  and remove everything before it */
1300             TCHAR *Old, *New;
1301             DWORD OldLength, NewLength;
1302             BOOL Star = FALSE;
1303             int LastMatch = 0, i = 0;
1304
1305             if (*Src == _T('*'))
1306             {
1307                 Star = TRUE;
1308                 Src++;
1309             }
1310
1311             /* the string to replace may contain the delimiter */
1312             Src = _tcschr(Old = Src, _T('='));
1313             if (Src == NULL)
1314                 goto bad_subst;
1315             OldLength = Src++ - Old;
1316             if (OldLength == 0)
1317                 goto bad_subst;
1318
1319             Src = _tcschr(New = Src, Delim);
1320             if (Src == NULL)
1321                 goto bad_subst;
1322             NewLength = Src++ - New;
1323
1324             while (i < VarLength)
1325             {
1326                 if (_tcsnicmp(&Var[i], Old, OldLength) == 0)
1327                 {
1328                     if (!Star)
1329                         APPEND(&Var[LastMatch], i - LastMatch)
1330                     APPEND(New, NewLength)
1331                     i += OldLength;
1332                     LastMatch = i;
1333                     if (Star)
1334                         break;
1335                     continue;
1336                 }
1337                 i++;
1338             }
1339             APPEND(&Var[LastMatch], VarLength - LastMatch)
1340         }
1341         continue;
1342
1343     bad_subst:
1344         Src = SubstStart;
1345         if (!bc)
1346             APPEND1(Delim)
1347     }
1348     *Dest = _T('\0');
1349     return TRUE;
1350 too_long:
1351     ConOutResPrintf(STRING_ALIAS_ERROR);
1352     nErrorLevel = 9023;
1353     return FALSE;
1354 #undef APPEND
1355 #undef APPEND1
1356 }
1357
1358 /* Search the list of FOR contexts for a variable */
1359 static LPTSTR FindForVar(TCHAR Var, BOOL *IsParam0)
1360 {
1361     FOR_CONTEXT *Ctx;
1362     *IsParam0 = FALSE;
1363     for (Ctx = fc; Ctx != NULL; Ctx = Ctx->prev)
1364     {
1365         if ((UINT)(Var - Ctx->firstvar) < Ctx->varcount)
1366             return Ctx->values[Var - Ctx->firstvar];
1367     }
1368     return NULL;
1369 }
1370
1371 BOOL
1372 SubstituteForVars(TCHAR *Src, TCHAR *Dest)
1373 {
1374     TCHAR *DestEnd = &Dest[CMDLINE_LENGTH - 1];
1375     while (*Src)
1376     {
1377         if (Src[0] == _T('%'))
1378         {
1379             BOOL Dummy;
1380             LPTSTR End = &Src[2];
1381             LPTSTR Value = NULL;
1382
1383             if (Src[1] == _T('~'))
1384                 Value = GetEnhancedVar(&End, FindForVar);
1385
1386             if (!Value)
1387                 Value = FindForVar(Src[1], &Dummy);
1388
1389             if (Value)
1390             {
1391                 if (Dest + _tcslen(Value) > DestEnd)
1392                     return FALSE;
1393                 Dest = _stpcpy(Dest, Value);
1394                 Src = End;
1395                 continue;
1396             }
1397         }
1398         /* Not a variable; just copy the character */
1399         if (Dest >= DestEnd)
1400             return FALSE;
1401         *Dest++ = *Src++;
1402     }
1403     *Dest = _T('\0');
1404     return TRUE;
1405 }
1406
1407 LPTSTR
1408 DoDelayedExpansion(LPTSTR Line)
1409 {
1410     TCHAR Buf1[CMDLINE_LENGTH];
1411     TCHAR Buf2[CMDLINE_LENGTH];
1412
1413     /* First, substitute FOR variables */
1414     if (!SubstituteForVars(Line, Buf1))
1415         return NULL;
1416
1417     if (!bDelayedExpansion || !_tcschr(Buf1, _T('!')))
1418         return cmd_dup(Buf1);
1419
1420     /* FIXME: Delayed substitutions actually aren't quite the same as
1421      * immediate substitutions. In particular, it's possible to escape
1422      * the exclamation point using ^. */
1423     if (!SubstituteVars(Buf1, Buf2, _T('!')))
1424         return NULL;
1425     return cmd_dup(Buf2);
1426 }
1427
1428
1429 /*
1430  * do the prompt/input/process loop
1431  *
1432  */
1433
1434 BOOL
1435 ReadLine(TCHAR *commandline, BOOL bMore)
1436 {
1437     TCHAR readline[CMDLINE_LENGTH];
1438     LPTSTR ip;
1439
1440     /* if no batch input then... */
1441     if (bc == NULL)
1442     {
1443         if (bMore)
1444         {
1445             ConOutResPrintf(STRING_MORE);
1446         }
1447         else
1448         {
1449             /* JPP 19980807 - if echo off, don't print prompt */
1450             if (bEcho)
1451             {
1452                 if (!bIgnoreEcho)
1453                     ConOutChar(_T('\n'));
1454                 PrintPrompt();
1455             }
1456         }
1457
1458         if (!ReadCommand(readline, CMDLINE_LENGTH - 1))
1459         {
1460             bExit = TRUE;
1461             return FALSE;
1462         }
1463
1464         if (readline[0] == _T('\0'))
1465             ConOutChar(_T('\n'));
1466
1467         if (CheckCtrlBreak(BREAK_INPUT))
1468             return FALSE;
1469
1470         if (readline[0] == _T('\0'))
1471             return FALSE;
1472
1473         ip = readline;
1474     }
1475     else
1476     {
1477         ip = ReadBatchLine();
1478         if (!ip)
1479             return FALSE;
1480     }
1481
1482     return SubstituteVars(ip, commandline, _T('%'));
1483 }
1484
1485 static VOID
1486 ProcessInput(VOID)
1487 {
1488     PARSED_COMMAND *Cmd;
1489
1490     while (!bCanExit || !bExit)
1491     {
1492         /* Reset the Ctrl-Break / Ctrl-C state */
1493         bCtrlBreak = FALSE;
1494
1495         Cmd = ParseCommand(NULL);
1496         if (!Cmd)
1497             continue;
1498
1499         ExecuteCommand(Cmd);
1500         FreeCommand(Cmd);
1501     }
1502 }
1503
1504
1505 /*
1506  * control-break handler.
1507  */
1508 BOOL WINAPI BreakHandler(DWORD dwCtrlType)
1509 {
1510     DWORD           dwWritten;
1511     INPUT_RECORD    rec;
1512
1513     if ((dwCtrlType != CTRL_C_EVENT) &&
1514         (dwCtrlType != CTRL_BREAK_EVENT))
1515     {
1516         return FALSE;
1517     }
1518
1519     if (!TryEnterCriticalSection(&ChildProcessRunningLock))
1520     {
1521         /* Child process is running and will have received the control event */
1522         return TRUE;
1523     }
1524     else
1525     {
1526         LeaveCriticalSection(&ChildProcessRunningLock);
1527     }
1528
1529     bCtrlBreak = TRUE;
1530
1531     rec.EventType = KEY_EVENT;
1532     rec.Event.KeyEvent.bKeyDown = TRUE;
1533     rec.Event.KeyEvent.wRepeatCount = 1;
1534     rec.Event.KeyEvent.wVirtualKeyCode = _T('C');
1535     rec.Event.KeyEvent.wVirtualScanCode = _T('C') - 35;
1536     rec.Event.KeyEvent.uChar.AsciiChar = _T('C');
1537     rec.Event.KeyEvent.uChar.UnicodeChar = _T('C');
1538     rec.Event.KeyEvent.dwControlKeyState = RIGHT_CTRL_PRESSED;
1539
1540     WriteConsoleInput(ConStreamGetOSHandle(StdIn),
1541                       &rec,
1542                       1,
1543                       &dwWritten);
1544
1545     /* FIXME: Handle batch files */
1546
1547     // ConOutPrintf(_T("^C"));
1548
1549     return TRUE;
1550 }
1551
1552
1553 VOID AddBreakHandler(VOID)
1554 {
1555     SetConsoleCtrlHandler(BreakHandler, TRUE);
1556 }
1557
1558
1559 VOID RemoveBreakHandler(VOID)
1560 {
1561     SetConsoleCtrlHandler(BreakHandler, FALSE);
1562 }
1563
1564
1565 /*
1566  * show commands and options that are available.
1567  *
1568  */
1569 #if 0
1570 static VOID
1571 ShowCommands(VOID)
1572 {
1573     /* print command list */
1574     ConOutResPuts(STRING_CMD_HELP1);
1575     PrintCommandList();
1576
1577     /* print feature list */
1578     ConOutResPuts(STRING_CMD_HELP2);
1579
1580 #ifdef FEATURE_ALIASES
1581     ConOutResPuts(STRING_CMD_HELP3);
1582 #endif
1583 #ifdef FEATURE_HISTORY
1584     ConOutResPuts(STRING_CMD_HELP4);
1585 #endif
1586 #ifdef FEATURE_UNIX_FILENAME_COMPLETION
1587     ConOutResPuts(STRING_CMD_HELP5);
1588 #endif
1589 #ifdef FEATURE_DIRECTORY_STACK
1590     ConOutResPuts(STRING_CMD_HELP6);
1591 #endif
1592 #ifdef FEATURE_REDIRECTION
1593     ConOutResPuts(STRING_CMD_HELP7);
1594 #endif
1595     ConOutChar(_T('\n'));
1596 }
1597 #endif
1598
1599
1600 static VOID
1601 LoadRegistrySettings(HKEY hKeyRoot)
1602 {
1603     LONG lRet;
1604     HKEY hKey;
1605     DWORD dwType, len;
1606     /*
1607      * Buffer big enough to hold the string L"4294967295",
1608      * corresponding to the literal 0xFFFFFFFF (MAX_ULONG) in decimal.
1609      */
1610     DWORD Buffer[6];
1611
1612     lRet = RegOpenKeyEx(hKeyRoot,
1613                         _T("Software\\Microsoft\\Command Processor"),
1614                         0,
1615                         KEY_QUERY_VALUE,
1616                         &hKey);
1617     if (lRet != ERROR_SUCCESS)
1618         return;
1619
1620 #ifdef INCLUDE_CMD_COLOR
1621     len = sizeof(Buffer);
1622     lRet = RegQueryValueEx(hKey,
1623                            _T("DefaultColor"),
1624                            NULL,
1625                            &dwType,
1626                            (LPBYTE)&Buffer,
1627                            &len);
1628     if (lRet == ERROR_SUCCESS)
1629     {
1630         /* Overwrite the default attributes */
1631         if (dwType == REG_DWORD)
1632             wDefColor = (WORD)*(PDWORD)Buffer;
1633         else if (dwType == REG_SZ)
1634             wDefColor = (WORD)_tcstol((PTSTR)Buffer, NULL, 0);
1635     }
1636     // else, use the default attributes retrieved before.
1637 #endif
1638
1639 #if 0
1640     len = sizeof(Buffer);
1641     lRet = RegQueryValueEx(hKey,
1642                            _T("DisableUNCCheck"),
1643                            NULL,
1644                            &dwType,
1645                            (LPBYTE)&Buffer,
1646                            &len);
1647     if (lRet == ERROR_SUCCESS)
1648     {
1649         /* Overwrite the default setting */
1650         if (dwType == REG_DWORD)
1651             bDisableUNCCheck = !!*(PDWORD)Buffer;
1652         else if (dwType == REG_SZ)
1653             bDisableUNCCheck = (_ttol((PTSTR)Buffer) == 1);
1654     }
1655     // else, use the default setting set globally.
1656 #endif
1657
1658     len = sizeof(Buffer);
1659     lRet = RegQueryValueEx(hKey,
1660                            _T("DelayedExpansion"),
1661                            NULL,
1662                            &dwType,
1663                            (LPBYTE)&Buffer,
1664                            &len);
1665     if (lRet == ERROR_SUCCESS)
1666     {
1667         /* Overwrite the default setting */
1668         if (dwType == REG_DWORD)
1669             bDelayedExpansion = !!*(PDWORD)Buffer;
1670         else if (dwType == REG_SZ)
1671             bDelayedExpansion = (_ttol((PTSTR)Buffer) == 1);
1672     }
1673     // else, use the default setting set globally.
1674
1675     len = sizeof(Buffer);
1676     lRet = RegQueryValueEx(hKey,
1677                            _T("EnableExtensions"),
1678                            NULL,
1679                            &dwType,
1680                            (LPBYTE)&Buffer,
1681                            &len);
1682     if (lRet == ERROR_SUCCESS)
1683     {
1684         /* Overwrite the default setting */
1685         if (dwType == REG_DWORD)
1686             bEnableExtensions = !!*(PDWORD)Buffer;
1687         else if (dwType == REG_SZ)
1688             bEnableExtensions = (_ttol((PTSTR)Buffer) == 1);
1689     }
1690     // else, use the default setting set globally.
1691
1692     len = sizeof(Buffer);
1693     lRet = RegQueryValueEx(hKey,
1694                            _T("CompletionChar"),
1695                            NULL,
1696                            &dwType,
1697                            (LPBYTE)&Buffer,
1698                            &len);
1699     if (lRet == ERROR_SUCCESS)
1700     {
1701         /* Overwrite the default setting */
1702         if (dwType == REG_DWORD)
1703             AutoCompletionChar = (TCHAR)*(PDWORD)Buffer;
1704         else if (dwType == REG_SZ)
1705             AutoCompletionChar = (TCHAR)_tcstol((PTSTR)Buffer, NULL, 0);
1706     }
1707     // else, use the default setting set globally.
1708
1709     /* Validity check */
1710     if (IS_COMPLETION_DISABLED(AutoCompletionChar))
1711     {
1712         /* Disable autocompletion */
1713         AutoCompletionChar = 0x20;
1714     }
1715
1716     len = sizeof(Buffer);
1717     lRet = RegQueryValueEx(hKey,
1718                            _T("PathCompletionChar"),
1719                            NULL,
1720                            &dwType,
1721                            (LPBYTE)&Buffer,
1722                            &len);
1723     if (lRet == ERROR_SUCCESS)
1724     {
1725         /* Overwrite the default setting */
1726         if (dwType == REG_DWORD)
1727             PathCompletionChar = (TCHAR)*(PDWORD)Buffer;
1728         else if (dwType == REG_SZ)
1729             PathCompletionChar = (TCHAR)_tcstol((PTSTR)Buffer, NULL, 0);
1730     }
1731     // else, use the default setting set globally.
1732
1733     /* Validity check */
1734     if (IS_COMPLETION_DISABLED(PathCompletionChar))
1735     {
1736         /* Disable autocompletion */
1737         PathCompletionChar = 0x20;
1738     }
1739
1740     /* Adjust completion chars */
1741     if (PathCompletionChar >= 0x20 && AutoCompletionChar < 0x20)
1742         PathCompletionChar = AutoCompletionChar;
1743     else if (AutoCompletionChar >= 0x20 && PathCompletionChar < 0x20)
1744         AutoCompletionChar = PathCompletionChar;
1745
1746     RegCloseKey(hKey);
1747 }
1748
1749 static VOID
1750 ExecuteAutoRunFile(HKEY hKeyRoot)
1751 {
1752     LONG lRet;
1753     HKEY hKey;
1754     DWORD dwType, len;
1755     TCHAR AutoRun[2048];
1756
1757     lRet = RegOpenKeyEx(hKeyRoot,
1758                         _T("Software\\Microsoft\\Command Processor"),
1759                         0,
1760                         KEY_QUERY_VALUE,
1761                         &hKey);
1762     if (lRet != ERROR_SUCCESS)
1763         return;
1764
1765     len = sizeof(AutoRun);
1766     lRet = RegQueryValueEx(hKey,
1767                            _T("AutoRun"),
1768                            NULL,
1769                            &dwType,
1770                            (LPBYTE)&AutoRun,
1771                            &len);
1772     if ((lRet == ERROR_SUCCESS) && (dwType == REG_EXPAND_SZ || dwType == REG_SZ))
1773     {
1774         if (*AutoRun)
1775             ParseCommandLine(AutoRun);
1776     }
1777
1778     RegCloseKey(hKey);
1779 }
1780
1781 /* Get the command that comes after a /C or /K switch */
1782 static VOID
1783 GetCmdLineCommand(TCHAR *commandline, TCHAR *ptr, BOOL AlwaysStrip)
1784 {
1785     TCHAR *LastQuote;
1786
1787     while (_istspace(*ptr))
1788         ptr++;
1789
1790     /* Remove leading quote, find final quote */
1791     if (*ptr == _T('"') &&
1792         (LastQuote = _tcsrchr(++ptr, _T('"'))) != NULL)
1793     {
1794         TCHAR *Space;
1795         /* Under certain circumstances, all quotes are preserved.
1796          * CMD /? documents these conditions as follows:
1797          *  1. No /S switch
1798          *  2. Exactly two quotes
1799          *  3. No "special characters" between the quotes
1800          *     (CMD /? says &<>()@^| but parentheses did not
1801          *     trigger this rule when I tested them.)
1802          *  4. Whitespace exists between the quotes
1803          *  5. Enclosed string is an executable filename
1804          */
1805         *LastQuote = _T('\0');
1806         for (Space = ptr + 1; Space < LastQuote; Space++)
1807         {
1808             if (_istspace(*Space))                         /* Rule 4 */
1809             {
1810                 if (!AlwaysStrip &&                        /* Rule 1 */
1811                     !_tcspbrk(ptr, _T("\"&<>@^|")) &&      /* Rules 2, 3 */
1812                     SearchForExecutable(ptr, commandline)) /* Rule 5 */
1813                 {
1814                     /* All conditions met: preserve both the quotes */
1815                     *LastQuote = _T('"');
1816                     _tcscpy(commandline, ptr - 1);
1817                     return;
1818                 }
1819                 break;
1820             }
1821         }
1822
1823         /* The conditions were not met: remove both the
1824          * leading quote and the last quote */
1825         _tcscpy(commandline, ptr);
1826         _tcscpy(&commandline[LastQuote - ptr], LastQuote + 1);
1827         return;
1828     }
1829
1830     /* No quotes; just copy */
1831     _tcscpy(commandline, ptr);
1832 }
1833
1834
1835 /*
1836  * Set up global initializations and process parameters
1837  */
1838 static VOID
1839 Initialize(VOID)
1840 {
1841     HMODULE NtDllModule;
1842     TCHAR commandline[CMDLINE_LENGTH];
1843     TCHAR ModuleName[_MAX_PATH + 1];
1844     // INT nExitCode;
1845
1846     HANDLE hIn, hOut;
1847
1848     TCHAR *ptr, *cmdLine, option = 0;
1849     BOOL AlwaysStrip = FALSE;
1850     BOOL AutoRun = TRUE;
1851
1852     /* Get version information */
1853     InitOSVersion();
1854
1855     /* Some people like to run ReactOS cmd.exe on Win98, it helps in the
1856      * build process. So don't link implicitly against ntdll.dll, load it
1857      * dynamically instead */
1858     NtDllModule = GetModuleHandle(TEXT("ntdll.dll"));
1859     if (NtDllModule != NULL)
1860     {
1861         NtQueryInformationProcessPtr = (NtQueryInformationProcessProc)GetProcAddress(NtDllModule, "NtQueryInformationProcess");
1862         NtReadVirtualMemoryPtr = (NtReadVirtualMemoryProc)GetProcAddress(NtDllModule, "NtReadVirtualMemory");
1863     }
1864
1865     /* Load the registry settings */
1866     LoadRegistrySettings(HKEY_LOCAL_MACHINE);
1867     LoadRegistrySettings(HKEY_CURRENT_USER);
1868
1869     /* Initialize our locale */
1870     InitLocale();
1871
1872     /* Initialize prompt support */
1873     InitPrompt();
1874
1875 #ifdef FEATURE_DIR_STACK
1876     /* Initialize directory stack */
1877     InitDirectoryStack();
1878 #endif
1879
1880 #ifdef FEATURE_HISTORY
1881     /* Initialize history */
1882     InitHistory();
1883 #endif
1884
1885     /* Set COMSPEC environment variable */
1886     if (GetModuleFileName(NULL, ModuleName, ARRAYSIZE(ModuleName)) != 0)
1887     {
1888         ModuleName[_MAX_PATH] = _T('\0');
1889         SetEnvironmentVariable (_T("COMSPEC"), ModuleName);
1890     }
1891
1892     /* Add ctrl break handler */
1893     AddBreakHandler();
1894
1895     /* Set our default console mode */
1896     hOut = ConStreamGetOSHandle(StdOut);
1897     hIn  = ConStreamGetOSHandle(StdIn);
1898     SetConsoleMode(hOut, 0); // Reinitialize the console output mode
1899     SetConsoleMode(hOut, ENABLE_PROCESSED_OUTPUT | ENABLE_WRAP_AT_EOL_OUTPUT);
1900     SetConsoleMode(hIn , ENABLE_PROCESSED_INPUT | ENABLE_LINE_INPUT | ENABLE_ECHO_INPUT);
1901
1902     cmdLine = GetCommandLine();
1903     TRACE ("[command args: %s]\n", debugstr_aw(cmdLine));
1904
1905     for (ptr = cmdLine; *ptr; ptr++)
1906     {
1907         if (*ptr == _T('/'))
1908         {
1909             option = _totupper(ptr[1]);
1910             if (option == _T('?'))
1911             {
1912                 ConOutResPaging(TRUE,STRING_CMD_HELP8);
1913                 nErrorLevel = 1;
1914                 bExit = TRUE;
1915                 return;
1916             }
1917             else if (option == _T('P'))
1918             {
1919                 if (!IsExistingFile (_T("\\autoexec.bat")))
1920                 {
1921 #ifdef INCLUDE_CMD_DATE
1922                     cmd_date (_T(""));
1923 #endif
1924 #ifdef INCLUDE_CMD_TIME
1925                     cmd_time (_T(""));
1926 #endif
1927                 }
1928                 else
1929                 {
1930                     ParseCommandLine (_T("\\autoexec.bat"));
1931                 }
1932                 bCanExit = FALSE;
1933             }
1934             else if (option == _T('A'))
1935             {
1936                 OutputStreamMode = AnsiText;
1937             }
1938             else if (option == _T('C') || option == _T('K') || option == _T('R'))
1939             {
1940                 /* Remainder of command line is a command to be run */
1941                 fSingleCommand = ((option == _T('K')) << 1) | 1;
1942                 break;
1943             }
1944             else if (option == _T('D'))
1945             {
1946                 AutoRun = FALSE;
1947             }
1948             else if (option == _T('Q'))
1949             {
1950                 bDisableBatchEcho = TRUE;
1951             }
1952             else if (option == _T('S'))
1953             {
1954                 AlwaysStrip = TRUE;
1955             }
1956 #ifdef INCLUDE_CMD_COLOR
1957             else if (!_tcsnicmp(ptr, _T("/T:"), 3))
1958             {
1959                 /* Process /T (color) argument; overwrite any previous settings */
1960                 wDefColor = (WORD)_tcstoul(&ptr[3], &ptr, 16);
1961             }
1962 #endif
1963             else if (option == _T('U'))
1964             {
1965                 OutputStreamMode = UTF16Text;
1966             }
1967             else if (option == _T('V'))
1968             {
1969                 // FIXME: Check validity of the parameter given to V !
1970                 bDelayedExpansion = _tcsnicmp(&ptr[2], _T(":OFF"), 4);
1971             }
1972             else if (option == _T('E'))
1973             {
1974                 // FIXME: Check validity of the parameter given to E !
1975                 bEnableExtensions = _tcsnicmp(&ptr[2], _T(":OFF"), 4);
1976             }
1977             else if (option == _T('X'))
1978             {
1979                 /* '/X' is identical to '/E:ON' */
1980                 bEnableExtensions = TRUE;
1981             }
1982             else if (option == _T('Y'))
1983             {
1984                 /* '/Y' is identical to '/E:OFF' */
1985                 bEnableExtensions = FALSE;
1986             }
1987         }
1988     }
1989
1990 #ifdef INCLUDE_CMD_COLOR
1991     if (wDefColor == 0)
1992     {
1993         /*
1994          * If we still do not have the console colour attribute set,
1995          * retrieve the default one.
1996          */
1997         ConGetDefaultAttributes(&wDefColor);
1998     }
1999
2000     if (wDefColor != 0)
2001         ConSetScreenColor(ConStreamGetOSHandle(StdOut), wDefColor, TRUE);
2002 #endif
2003
2004     /* Reset the output Standard Streams translation modes and codepage caches */
2005     // ConStreamSetMode(StdIn , OutputStreamMode, InputCodePage );
2006     ConStreamSetMode(StdOut, OutputStreamMode, OutputCodePage);
2007     ConStreamSetMode(StdErr, OutputStreamMode, OutputCodePage);
2008
2009     if (!*ptr)
2010     {
2011         /* If neither /C or /K was given, display a simple version string */
2012         ConOutChar(_T('\n'));
2013         ConOutResPrintf(STRING_REACTOS_VERSION,
2014                         _T(KERNEL_VERSION_STR),
2015                         _T(KERNEL_VERSION_BUILD_STR));
2016         ConOutPuts(_T("(C) Copyright 1998-") _T(COPYRIGHT_YEAR) _T(" ReactOS Team.\n"));
2017     }
2018
2019     if (AutoRun)
2020     {
2021         ExecuteAutoRunFile(HKEY_LOCAL_MACHINE);
2022         ExecuteAutoRunFile(HKEY_CURRENT_USER);
2023     }
2024
2025     if (*ptr)
2026     {
2027         /* Do the /C or /K command */
2028         GetCmdLineCommand(commandline, &ptr[2], AlwaysStrip);
2029         /* nExitCode = */ ParseCommandLine(commandline);
2030         if (fSingleCommand == 1)
2031         {
2032             // nErrorLevel = nExitCode;
2033             bExit = TRUE;
2034         }
2035         fSingleCommand = 0;
2036     }
2037 }
2038
2039
2040 static VOID Cleanup(VOID)
2041 {
2042     /* Run cmdexit.bat */
2043     if (IsExistingFile(_T("cmdexit.bat")))
2044     {
2045         ConErrResPuts(STRING_CMD_ERROR5);
2046         ParseCommandLine(_T("cmdexit.bat"));
2047     }
2048     else if (IsExistingFile(_T("\\cmdexit.bat")))
2049     {
2050         ConErrResPuts(STRING_CMD_ERROR5);
2051         ParseCommandLine(_T("\\cmdexit.bat"));
2052     }
2053
2054 #ifdef FEATURE_DIRECTORY_STACK
2055     /* Destroy directory stack */
2056     DestroyDirectoryStack();
2057 #endif
2058
2059 #ifdef FEATURE_HISTORY
2060     CleanHistory();
2061 #endif
2062
2063     /* Free GetEnvVar's buffer */
2064     GetEnvVar(NULL);
2065
2066     /* Remove ctrl break handler */
2067     RemoveBreakHandler();
2068
2069     /* Restore the default console mode */
2070     SetConsoleMode(ConStreamGetOSHandle(StdIn),
2071                    ENABLE_PROCESSED_INPUT | ENABLE_LINE_INPUT | ENABLE_ECHO_INPUT);
2072     SetConsoleMode(ConStreamGetOSHandle(StdOut),
2073                    ENABLE_PROCESSED_OUTPUT | ENABLE_WRAP_AT_EOL_OUTPUT);
2074
2075     DeleteCriticalSection(&ChildProcessRunningLock);
2076 }
2077
2078 /*
2079  * main function
2080  */
2081 int _tmain(int argc, const TCHAR *argv[])
2082 {
2083     TCHAR startPath[MAX_PATH];
2084
2085     InitializeCriticalSection(&ChildProcessRunningLock);
2086     lpOriginalEnvironment = DuplicateEnvironment();
2087
2088     GetCurrentDirectory(ARRAYSIZE(startPath), startPath);
2089     _tchdir(startPath);
2090
2091     SetFileApisToOEM();
2092     InputCodePage  = GetConsoleCP();
2093     OutputCodePage = GetConsoleOutputCP();
2094
2095     /* Initialize the Console Standard Streams */
2096     ConStreamInit(StdIn , GetStdHandle(STD_INPUT_HANDLE) , /*OutputStreamMode*/ AnsiText, InputCodePage);
2097     ConStreamInit(StdOut, GetStdHandle(STD_OUTPUT_HANDLE), OutputStreamMode, OutputCodePage);
2098     ConStreamInit(StdErr, GetStdHandle(STD_ERROR_HANDLE) , OutputStreamMode, OutputCodePage);
2099
2100     CMD_ModuleHandle = GetModuleHandle(NULL);
2101
2102     /* Perform general initialization, parse switches on command-line */
2103     Initialize();
2104
2105     /* Call prompt routine */
2106     ProcessInput();
2107
2108     /* Do the cleanup */
2109     Cleanup();
2110
2111     cmd_free(lpOriginalEnvironment);
2112
2113     cmd_exit(nErrorLevel);
2114     return nErrorLevel;
2115 }
2116
2117 /* EOF */