Don't print a CR, if the command line is from a batch file and starts with a '@'.
[reactos.git] / reactos / subsys / system / 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 carrage return output to better match MSDOS with echo
85 * on or off. (marked with "JPP 19980708")
86 *
87 * 07-Dec-1998 (Eric Kohl <ekohl@abo.rhein-zeitung.de>)
88 * First ReactOS release.
89 * Extended length of commandline buffers to 512.
90 *
91 * 13-Dec-1998 (Eric Kohl <ekohl@abo.rhein-zeitung.de>)
92 * Added COMSPEC environment variable.
93 * Added "/t" support (color) on cmd command line.
94 *
95 * 07-Jan-1999 (Eric Kohl <ekohl@abo.rhein-zeitung.de>)
96 * Added help text ("cmd /?").
97 *
98 * 25-Jan-1999 (Eric Kohl <ekohl@abo.rhein-zeitung.de>)
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 <ekohl@abo.rhein-zeitung.de>)
105 * Replaced spawnl() by CreateProcess().
106 *
107 * 22-Oct-1999 (Eric Kohl <ekohl@abo.rhein-zeitung.de>)
108 * Added break handler.
109 *
110 * 15-Dec-1999 (Eric Kohl <ekohl@abo.rhein-zeitung.de>)
111 * Fixed current directory
112 *
113 * 28-Dec-1999 (Eric Kohl <ekohl@abo.rhein-zeitung.de>)
114 * Restore window title after program/batch execution
115 *
116 * 03-Feb-2001 (Eric Kohl <ekohl@rz-online.de>)
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 (Hartmut Birr)
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 memmory alloc ProcessInput, the error
141 * handling for memmory handling need to be improve
142 */
143
144 #include <precomp.h>
145 #include <malloc.h>
146 #include "resource.h"
147
148 #ifndef NT_SUCCESS
149 #define NT_SUCCESS(StatCode) ((NTSTATUS)(StatCode) >= 0)
150 #endif
151
152 typedef NTSTATUS (WINAPI *NtQueryInformationProcessProc)(HANDLE, PROCESSINFOCLASS,
153 PVOID, ULONG, PULONG);
154 typedef NTSTATUS (WINAPI *NtReadVirtualMemoryProc)(HANDLE, PVOID, PVOID, ULONG, PULONG);
155
156 BOOL bExit = FALSE; /* indicates EXIT was typed */
157 BOOL bCanExit = TRUE; /* indicates if this shell is exitable */
158 BOOL bCtrlBreak = FALSE; /* Ctrl-Break or Ctrl-C hit */
159 BOOL bIgnoreEcho = FALSE; /* Ignore 'newline' before 'cls' */
160 INT nErrorLevel = 0; /* Errorlevel of last launched external program */
161 BOOL bChildProcessRunning = FALSE;
162 DWORD dwChildProcessId = 0;
163 OSVERSIONINFO osvi;
164 HANDLE hIn;
165 HANDLE hOut;
166 HANDLE hConsole;
167 HANDLE CMD_ModuleHandle;
168 HMODULE NtDllModule;
169
170 static NtQueryInformationProcessProc NtQueryInformationProcessPtr = NULL;
171 static NtReadVirtualMemoryProc NtReadVirtualMemoryPtr = NULL;
172
173 #ifdef INCLUDE_CMD_COLOR
174 WORD wColor; /* current color */
175 WORD wDefColor; /* default color */
176 #endif
177
178 /*
179 * is character a delimeter when used on first word?
180 *
181 */
182
183 static BOOL IsDelimiter (TCHAR c)
184 {
185 return (c == _T('/') || c == _T('=') || c == _T('\0') || _istspace (c));
186 }
187
188 /*
189 * Is a process a console process?
190 */
191 static BOOL IsConsoleProcess(HANDLE Process)
192 {
193 NTSTATUS Status;
194 PROCESS_BASIC_INFORMATION Info;
195 PEB ProcessPeb;
196 ULONG BytesRead;
197
198 if (NULL == NtQueryInformationProcessPtr || NULL == NtReadVirtualMemoryPtr)
199 {
200 return TRUE;
201 }
202
203 Status = NtQueryInformationProcessPtr (
204 Process, ProcessBasicInformation,
205 &Info, sizeof(PROCESS_BASIC_INFORMATION), NULL);
206 if (! NT_SUCCESS(Status))
207 {
208 #ifdef _DEBUG
209 DebugPrintf (_T("NtQueryInformationProcess failed with status %08x\n"), Status);
210 #endif
211 return TRUE;
212 }
213 Status = NtReadVirtualMemoryPtr (
214 Process, Info.PebBaseAddress, &ProcessPeb,
215 sizeof(PEB), &BytesRead);
216 if (! NT_SUCCESS(Status) || sizeof(PEB) != BytesRead)
217 {
218 #ifdef _DEBUG
219 DebugPrintf (_T("Couldn't read virt mem status %08x bytes read %lu\n"), Status, BytesRead);
220 #endif
221 return TRUE;
222 }
223
224 return IMAGE_SUBSYSTEM_WINDOWS_CUI == ProcessPeb.ImageSubSystem;
225 }
226
227
228
229 #ifdef _UNICODE
230 #define SHELLEXECUTETEXT "ShellExecuteW"
231 #else
232 #define SHELLEXECUTETEXT "ShellExecuteA"
233 #endif
234
235 typedef HINSTANCE (WINAPI *MYEX)(
236 HWND hwnd,
237 LPCTSTR lpOperation,
238 LPCTSTR lpFile,
239 LPCTSTR lpParameters,
240 LPCTSTR lpDirectory,
241 INT nShowCmd
242 );
243
244
245
246 static BOOL RunFile(LPTSTR filename)
247 {
248 HMODULE hShell32;
249 MYEX hShExt;
250 HINSTANCE ret;
251
252 #ifdef _DEBUG
253 DebugPrintf (_T("RunFile(%s)\n"), filename);
254 #endif
255 hShell32 = LoadLibrary(_T("SHELL32.DLL"));
256 if (!hShell32)
257 {
258 #ifdef _DEBUG
259 DebugPrintf (_T("RunFile: couldn't load SHELL32.DLL!\n"));
260 #endif
261 return FALSE;
262 }
263
264 hShExt = (MYEX)(FARPROC)GetProcAddress(hShell32, SHELLEXECUTETEXT);
265 if (!hShExt)
266 {
267 #ifdef _DEBUG
268 DebugPrintf (_T("RunFile: couldn't find ShellExecuteA/W in SHELL32.DLL!\n"));
269 #endif
270 FreeLibrary(hShell32);
271 return FALSE;
272 }
273
274 #ifdef _DEBUG
275 DebugPrintf (_T("RunFile: ShellExecuteA/W is at %x\n"), hShExt);
276 #endif
277
278 ret = (hShExt)(NULL, _T("open"), filename, NULL, NULL, SW_SHOWNORMAL);
279
280 #ifdef _DEBUG
281 DebugPrintf (_T("RunFile: ShellExecuteA/W returned %d\n"), (DWORD)ret);
282 #endif
283
284 FreeLibrary(hShell32);
285 return (((DWORD)ret) > 32);
286 }
287
288
289
290 /*
291 * This command (in first) was not found in the command table
292 *
293 * Full - whole command line
294 * First - first word on command line
295 * Rest - rest of command line
296 */
297
298 static VOID
299 Execute (LPTSTR Full, LPTSTR First, LPTSTR Rest)
300 {
301 TCHAR *szFullName=NULL;
302 TCHAR *first = NULL;
303 TCHAR *rest = NULL;
304 TCHAR *full = NULL;
305 TCHAR *dot = NULL;
306 TCHAR szWindowTitle[MAX_PATH];
307 DWORD dwExitCode = 0;
308
309 #ifdef _DEBUG
310 DebugPrintf (_T("Execute: \'%s\' \'%s\'\n"), first, rest);
311 #endif
312
313 /* we need biger buffer that First, Rest, Full are already
314 need rewrite some code to use realloc when it need instead
315 of add 512bytes extra */
316
317 first = malloc ( (_tcslen(First) + 512) * sizeof(TCHAR));
318 if (first == NULL)
319 {
320 error_out_of_memory();
321 return ;
322 }
323
324 rest = malloc ( (_tcslen(Rest) + 512) * sizeof(TCHAR));
325 if (rest == NULL)
326 {
327 free (first);
328 error_out_of_memory();
329 return ;
330 }
331
332 full = malloc ( (_tcslen(Full) + 512) * sizeof(TCHAR));
333 if (full == NULL)
334 {
335 free (first);
336 free (rest);
337 error_out_of_memory();
338 return ;
339 }
340
341 szFullName = malloc ( (_tcslen(Full) + 512) * sizeof(TCHAR));
342 if (full == NULL)
343 {
344 free (first);
345 free (rest);
346 free (full);
347 error_out_of_memory();
348 return ;
349 }
350
351
352 /* Though it was already parsed once, we have a different set of rules
353 for parsing before we pass to CreateProccess */
354 if(!_tcschr(Full,_T('\"')))
355 {
356 _tcscpy(first,First);
357 _tcscpy(rest,Rest);
358 _tcscpy(full,Full);
359 }
360 else
361 {
362 UINT i = 0;
363 BOOL bInside = FALSE;
364 rest[0] = _T('\0');
365 full[0] = _T('\0');
366 first[0] = _T('\0');
367 _tcscpy(first,Full);
368 /* find the end of the command and start of the args */
369 for(i = 0; i < _tcslen(first); i++)
370 {
371 if(!_tcsncmp(&first[i], _T("\""), 1))
372 bInside = !bInside;
373 if(!_tcsncmp(&first[i], _T(" "), 1) && !bInside)
374 {
375 _tcscpy(rest,&first[i]);
376 first[i] = _T('\0');
377 break;
378 }
379
380 }
381 i = 0;
382 /* remove any slashes */
383 while(i < _tcslen(first))
384 {
385 if(first[i] == _T('\"'))
386 memmove(&first[i],&first[i + 1], _tcslen(&first[i]) * sizeof(TCHAR));
387 else
388 i++;
389 }
390 /* Drop quotes around it just in case there is a space */
391 _tcscpy(full,_T("\""));
392 _tcscat(full,first);
393 _tcscat(full,_T("\" "));
394 _tcscat(full,rest);
395 }
396
397 /* check for a drive change */
398 if ((_istalpha (first[0])) && (!_tcscmp (first + 1, _T(":"))))
399 {
400 BOOL working = TRUE;
401 if (!SetCurrentDirectory(first))
402 /* Guess they changed disc or something, handle that gracefully and get to root */
403 {
404 TCHAR str[4];
405 str[0]=first[0];
406 str[1]=_T(':');
407 str[2]=_T('\\');
408 str[3]=0;
409 working = SetCurrentDirectory(str);
410 }
411
412 if (!working) ConErrResPuts (STRING_FREE_ERROR1);
413
414 free (first);
415 free (rest);
416 free (full);
417 free (szFullName);
418
419 return;
420 }
421
422 /* get the PATH environment variable and parse it */
423 /* search the PATH environment variable for the binary */
424 if (!SearchForExecutable (first, szFullName))
425 {
426 error_bad_command ();
427 free (first);
428 free (rest);
429 free (full);
430 free (szFullName);
431 return;
432
433 }
434
435 GetConsoleTitle (szWindowTitle, MAX_PATH);
436
437 /* check if this is a .BAT or .CMD file */
438 dot = _tcsrchr (szFullName, _T('.'));
439 if (dot && (!_tcsicmp (dot, _T(".bat")) || !_tcsicmp (dot, _T(".cmd"))))
440 {
441 #ifdef _DEBUG
442 DebugPrintf (_T("[BATCH: %s %s]\n"), szFullName, rest);
443 #endif
444 Batch (szFullName, first, rest);
445 }
446 else
447 {
448 /* exec the program */
449 PROCESS_INFORMATION prci;
450 STARTUPINFO stui;
451
452 #ifdef _DEBUG
453 DebugPrintf (_T("[EXEC: %s %s]\n"), full, rest);
454 #endif
455 /* build command line for CreateProcess() */
456
457 /* fill startup info */
458 memset (&stui, 0, sizeof (STARTUPINFO));
459 stui.cb = sizeof (STARTUPINFO);
460 stui.dwFlags = STARTF_USESHOWWINDOW;
461 stui.wShowWindow = SW_SHOWDEFAULT;
462
463 // return console to standard mode
464 SetConsoleMode (GetStdHandle(STD_INPUT_HANDLE),
465 ENABLE_LINE_INPUT | ENABLE_PROCESSED_INPUT | ENABLE_ECHO_INPUT );
466
467 if (CreateProcess (szFullName,
468 full,
469 NULL,
470 NULL,
471 TRUE,
472 CREATE_NEW_PROCESS_GROUP,
473 NULL,
474 NULL,
475 &stui,
476 &prci))
477 {
478 if (IsConsoleProcess(prci.hProcess))
479 {
480 /* FIXME: Protect this with critical section */
481 bChildProcessRunning = TRUE;
482 dwChildProcessId = prci.dwProcessId;
483
484 WaitForSingleObject (prci.hProcess, INFINITE);
485
486 /* FIXME: Protect this with critical section */
487 bChildProcessRunning = FALSE;
488
489 GetExitCodeProcess (prci.hProcess, &dwExitCode);
490 nErrorLevel = (INT)dwExitCode;
491 }
492 CloseHandle (prci.hThread);
493 CloseHandle (prci.hProcess);
494 }
495 else
496 {
497 #ifdef _DEBUG
498 DebugPrintf (_T("[ShellExecute: %s]\n"), full);
499 #endif
500 // See if we can run this with ShellExecute() ie myfile.xls
501 if (!RunFile(full))
502 {
503 #ifdef _DEBUG
504 DebugPrintf (_T("[ShellExecute failed!: %s]\n"), full);
505 #endif
506 error_bad_command ();
507 }
508 }
509 // restore console mode
510 SetConsoleMode (
511 GetStdHandle( STD_INPUT_HANDLE ),
512 ENABLE_PROCESSED_INPUT );
513 }
514
515 /* Get code page if it has been change */
516 InputCodePage= GetConsoleCP();
517 OutputCodePage = GetConsoleOutputCP();
518 SetConsoleTitle (szWindowTitle);
519
520 free(first);
521 free(rest);
522 free(full);
523 free (szFullName);
524 }
525
526
527 /*
528 * look through the internal commands and determine whether or not this
529 * command is one of them. If it is, call the command. If not, call
530 * execute to run it as an external program.
531 *
532 * line - the command line of the program to run
533 *
534 */
535
536 static VOID
537 DoCommand (LPTSTR line)
538 {
539 TCHAR *com = NULL; /* the first word in the command */
540 TCHAR *cp = NULL;
541 LPTSTR cstart;
542 LPTSTR rest; /* pointer to the rest of the command line */
543 INT cl;
544 LPCOMMAND cmdptr;
545
546 #ifdef _DEBUG
547 DebugPrintf (_T("DoCommand: (\'%s\')\n"), line);
548 #endif /* DEBUG */
549
550 com = malloc( (_tcslen(line) +512)*sizeof(TCHAR) );
551 if (com == NULL)
552 {
553 error_out_of_memory();
554 return;
555 }
556
557 cp = com;
558 /* Skip over initial white space */
559 while (_istspace (*line))
560 line++;
561 rest = line;
562
563 cstart = rest;
564
565 /* Anything to do ? */
566 if (*rest)
567 {
568 if (*rest == _T('"'))
569 {
570 /* treat quoted words specially */
571
572 rest++;
573
574 while(*rest != _T('\0') && *rest != _T('"'))
575 *cp++ = _totlower (*rest++);
576 if (*rest == _T('"'))
577 rest++;
578 }
579 else
580 {
581 while (!IsDelimiter (*rest))
582 *cp++ = _totlower (*rest++);
583 }
584
585
586 /* Terminate first word */
587 *cp = _T('\0');
588
589 /* Do not limit commands to MAX_PATH */
590 /*
591 if(_tcslen(com) > MAX_PATH)
592 {
593 error_bad_command();
594 free(com);
595 return;
596 }
597 */
598
599 /* Skip over whitespace to rest of line */
600 while (_istspace (*rest))
601 rest++;
602
603 /* Scan internal command table */
604 for (cmdptr = cmds;; cmdptr++)
605 {
606 /* If end of table execute ext cmd */
607 if (cmdptr->name == NULL)
608 {
609 Execute (line, com, rest);
610 break;
611 }
612
613 if (!_tcscmp (com, cmdptr->name))
614 {
615 cmdptr->func (com, rest);
616 break;
617 }
618
619 /* The following code handles the case of commands like CD which
620 * are recognised even when the command name and parameter are
621 * not space separated.
622 *
623 * e.g dir..
624 * cd\freda
625 */
626
627 /* Get length of command name */
628 cl = _tcslen (cmdptr->name);
629
630 if ((cmdptr->flags & CMD_SPECIAL) &&
631 (!_tcsncmp (cmdptr->name, com, cl)) &&
632 (_tcschr (_T("\\.-"), *(com + cl))))
633 {
634 /* OK its one of the specials...*/
635
636 /* Terminate first word properly */
637 com[cl] = _T('\0');
638
639 /* Call with new rest */
640 cmdptr->func (com, cstart + cl);
641 break;
642 }
643 }
644 }
645 free(com);
646 }
647
648
649 /*
650 * process the command line and execute the appropriate functions
651 * full input/output redirection and piping are supported
652 */
653
654 VOID ParseCommandLine (LPTSTR cmd)
655 {
656 TCHAR szMsg[RC_STRING_MAX_SIZE];
657 TCHAR cmdline[CMDLINE_LENGTH];
658 LPTSTR s;
659 #ifdef FEATURE_REDIRECTION
660 TCHAR in[CMDLINE_LENGTH] = _T("");
661 TCHAR out[CMDLINE_LENGTH] = _T("");
662 TCHAR err[CMDLINE_LENGTH] = _T("");
663 TCHAR szTempPath[MAX_PATH] = _T(".\\");
664 TCHAR szFileName[2][MAX_PATH] = {_T(""), _T("")};
665 HANDLE hFile[2] = {INVALID_HANDLE_VALUE, INVALID_HANDLE_VALUE};
666 LPTSTR t = NULL;
667 INT num = 0;
668 INT nRedirFlags = 0;
669 INT Length;
670 UINT Attributes;
671 BOOL bNewBatch = TRUE;
672 HANDLE hOldConIn;
673 HANDLE hOldConOut;
674 HANDLE hOldConErr;
675 #endif /* FEATURE_REDIRECTION */
676
677 _tcscpy (cmdline, cmd);
678 s = &cmdline[0];
679
680 #ifdef _DEBUG
681 DebugPrintf (_T("ParseCommandLine: (\'%s\')\n"), s);
682 #endif /* DEBUG */
683
684 #ifdef FEATURE_ALIASES
685 /* expand all aliases */
686 ExpandAlias (s, CMDLINE_LENGTH);
687 #endif /* FEATURE_ALIAS */
688
689 #ifdef FEATURE_REDIRECTION
690 /* find the temp path to store temporary files */
691 Length = GetTempPath (MAX_PATH, szTempPath);
692 if (Length > 0 && Length < MAX_PATH)
693 {
694 Attributes = GetFileAttributes(szTempPath);
695 if (Attributes == 0xffffffff ||
696 !(Attributes & FILE_ATTRIBUTE_DIRECTORY))
697 {
698 Length = 0;
699 }
700 }
701 if (Length == 0 || Length >= MAX_PATH)
702 {
703 _tcscpy(szTempPath, _T(".\\"));
704 }
705 if (szTempPath[_tcslen (szTempPath) - 1] != _T('\\'))
706 _tcscat (szTempPath, _T("\\"));
707
708 /* get the redirections from the command line */
709 num = GetRedirection (s, in, out, err, &nRedirFlags);
710
711 /* more efficient, but do we really need to do this? */
712 for (t = in; _istspace (*t); t++)
713 ;
714 _tcscpy (in, t);
715
716 for (t = out; _istspace (*t); t++)
717 ;
718 _tcscpy (out, t);
719
720 for (t = err; _istspace (*t); t++)
721 ;
722 _tcscpy (err, t);
723
724 if(bc && !_tcslen (in) && _tcslen (bc->In))
725 _tcscpy(in, bc->In);
726 if(bc && !out[0] && _tcslen(bc->Out))
727 {
728 nRedirFlags |= OUTPUT_APPEND;
729 _tcscpy(out, bc->Out);
730 }
731 if(bc && !_tcslen (err) && _tcslen (bc->Err))
732 {
733 nRedirFlags |= ERROR_APPEND;
734 _tcscpy(err, bc->Err);
735 }
736
737
738 /* Set up the initial conditions ... */
739 /* preserve STDIN, STDOUT and STDERR handles */
740 hOldConIn = GetStdHandle (STD_INPUT_HANDLE);
741 hOldConOut = GetStdHandle (STD_OUTPUT_HANDLE);
742 hOldConErr = GetStdHandle (STD_ERROR_HANDLE);
743
744 /* redirect STDIN */
745 if (in[0])
746 {
747 HANDLE hFile;
748 SECURITY_ATTRIBUTES sa = {sizeof(SECURITY_ATTRIBUTES), NULL, TRUE};
749
750 /* we need make sure the LastError msg is zero before calling CreateFile */
751 SetLastError(0);
752
753 /* Set up pipe for the standard input handler */
754 hFile = CreateFile (in, GENERIC_READ, FILE_SHARE_READ, &sa, OPEN_EXISTING,
755 FILE_ATTRIBUTE_NORMAL, NULL);
756 if (hFile == INVALID_HANDLE_VALUE)
757 {
758 LoadString(CMD_ModuleHandle, STRING_CMD_ERROR1, szMsg, RC_STRING_MAX_SIZE);
759 ConErrPrintf(szMsg, in);
760 return;
761 }
762
763 if (!SetStdHandle (STD_INPUT_HANDLE, hFile))
764 {
765 LoadString(CMD_ModuleHandle, STRING_CMD_ERROR1, szMsg, RC_STRING_MAX_SIZE);
766 ConErrPrintf(szMsg, in);
767 return;
768 }
769 #ifdef _DEBUG
770 DebugPrintf (_T("Input redirected from: %s\n"), in);
771 #endif
772 }
773
774 /* Now do all but the last pipe command */
775 *szFileName[0] = _T('\0');
776 hFile[0] = INVALID_HANDLE_VALUE;
777
778 while (num-- > 1)
779 {
780 SECURITY_ATTRIBUTES sa = {sizeof(SECURITY_ATTRIBUTES), NULL, TRUE};
781
782 /* Create unique temporary file name */
783 GetTempFileName (szTempPath, _T("CMD"), 0, szFileName[1]);
784
785 /* we need make sure the LastError msg is zero before calling CreateFile */
786 SetLastError(0);
787
788 /* Set current stdout to temporary file */
789 hFile[1] = CreateFile (szFileName[1], GENERIC_WRITE, 0, &sa,
790 TRUNCATE_EXISTING, FILE_ATTRIBUTE_TEMPORARY, NULL);
791
792 if (hFile[1] == INVALID_HANDLE_VALUE)
793 {
794 LoadString(CMD_ModuleHandle, STRING_CMD_ERROR2, szMsg, RC_STRING_MAX_SIZE);
795 ConErrPrintf(szMsg);
796 return;
797 }
798
799 SetStdHandle (STD_OUTPUT_HANDLE, hFile[1]);
800
801 DoCommand (s);
802
803 /* close stdout file */
804 SetStdHandle (STD_OUTPUT_HANDLE, hOldConOut);
805 if ((hFile[1] != INVALID_HANDLE_VALUE) && (hFile[1] != hOldConOut))
806 {
807 CloseHandle (hFile[1]);
808 hFile[1] = INVALID_HANDLE_VALUE;
809 }
810
811 /* close old stdin file */
812 SetStdHandle (STD_INPUT_HANDLE, hOldConIn);
813 if ((hFile[0] != INVALID_HANDLE_VALUE) && (hFile[0] != hOldConIn))
814 {
815 /* delete old stdin file, if it is a real file */
816 CloseHandle (hFile[0]);
817 hFile[0] = INVALID_HANDLE_VALUE;
818 DeleteFile (szFileName[0]);
819 *szFileName[0] = _T('\0');
820 }
821
822 /* copy stdout file name to stdin file name */
823 _tcscpy (szFileName[0], szFileName[1]);
824 *szFileName[1] = _T('\0');
825
826 /* we need make sure the LastError msg is zero before calling CreateFile */
827 SetLastError(0);
828
829 /* open new stdin file */
830 hFile[0] = CreateFile (szFileName[0], GENERIC_READ, 0, &sa,
831 OPEN_EXISTING, FILE_ATTRIBUTE_TEMPORARY, NULL);
832 SetStdHandle (STD_INPUT_HANDLE, hFile[0]);
833
834 s = s + _tcslen (s) + 1;
835 }
836
837 /* Now set up the end conditions... */
838 /* redirect STDOUT */
839 if (out[0])
840 {
841 /* Final output to here */
842 HANDLE hFile;
843 SECURITY_ATTRIBUTES sa = {sizeof(SECURITY_ATTRIBUTES), NULL, TRUE};
844
845 /* we need make sure the LastError msg is zero before calling CreateFile */
846 SetLastError(0);
847
848 hFile = CreateFile (out, GENERIC_WRITE, FILE_SHARE_WRITE | FILE_SHARE_READ | FILE_SHARE_DELETE, &sa,
849 (nRedirFlags & OUTPUT_APPEND) ? OPEN_ALWAYS : CREATE_ALWAYS,
850 FILE_ATTRIBUTE_NORMAL | FILE_FLAG_WRITE_THROUGH, NULL);
851
852 if (hFile == INVALID_HANDLE_VALUE)
853 {
854 INT size = _tcslen(out)-1;
855
856 if (out[size] != _T(':'))
857 {
858 LoadString(CMD_ModuleHandle, STRING_CMD_ERROR3, szMsg, RC_STRING_MAX_SIZE);
859 ConErrPrintf(szMsg, out);
860 return;
861 }
862
863 out[size]=_T('\0');
864 hFile = CreateFile (out, GENERIC_WRITE, FILE_SHARE_WRITE | FILE_SHARE_READ | FILE_SHARE_DELETE, &sa,
865 (nRedirFlags & OUTPUT_APPEND) ? OPEN_ALWAYS : CREATE_ALWAYS,
866 FILE_ATTRIBUTE_NORMAL | FILE_FLAG_WRITE_THROUGH, NULL);
867
868 if (hFile == INVALID_HANDLE_VALUE)
869 {
870 LoadString(CMD_ModuleHandle, STRING_CMD_ERROR3, szMsg, RC_STRING_MAX_SIZE);
871 ConErrPrintf(szMsg, out);
872 return;
873 }
874
875 }
876
877 if (!SetStdHandle (STD_OUTPUT_HANDLE, hFile))
878 {
879 LoadString(CMD_ModuleHandle, STRING_CMD_ERROR3, szMsg, RC_STRING_MAX_SIZE);
880 ConErrPrintf(szMsg, out);
881 return;
882 }
883
884 if (nRedirFlags & OUTPUT_APPEND)
885 {
886 LONG lHighPos = 0;
887
888 if (GetFileType (hFile) == FILE_TYPE_DISK)
889 SetFilePointer (hFile, 0, &lHighPos, FILE_END);
890 }
891 #ifdef _DEBUG
892 DebugPrintf (_T("Output redirected to: %s\n"), out);
893 #endif
894 }
895 else if (hOldConOut != INVALID_HANDLE_VALUE)
896 {
897 /* Restore original stdout */
898 HANDLE hOut = GetStdHandle (STD_OUTPUT_HANDLE);
899 SetStdHandle (STD_OUTPUT_HANDLE, hOldConOut);
900 if (hOldConOut != hOut)
901 CloseHandle (hOut);
902 hOldConOut = INVALID_HANDLE_VALUE;
903 }
904
905 /* redirect STDERR */
906 if (err[0])
907 {
908 /* Final output to here */
909 HANDLE hFile;
910 SECURITY_ATTRIBUTES sa = {sizeof(SECURITY_ATTRIBUTES), NULL, TRUE};
911
912 if (!_tcscmp (err, out))
913 {
914 #ifdef _DEBUG
915 DebugPrintf (_T("Stdout and stderr will use the same file!!\n"));
916 #endif
917 DuplicateHandle (GetCurrentProcess (),
918 GetStdHandle (STD_OUTPUT_HANDLE),
919 GetCurrentProcess (),
920 &hFile, 0, TRUE, DUPLICATE_SAME_ACCESS);
921 }
922 else
923 {
924 hFile = CreateFile (err,
925 GENERIC_WRITE,
926 FILE_SHARE_WRITE | FILE_SHARE_READ | FILE_SHARE_DELETE,
927 &sa,
928 (nRedirFlags & ERROR_APPEND) ? OPEN_ALWAYS : CREATE_ALWAYS,
929 FILE_ATTRIBUTE_NORMAL | FILE_FLAG_WRITE_THROUGH,
930 NULL);
931 if (hFile == INVALID_HANDLE_VALUE)
932 {
933 LoadString(CMD_ModuleHandle, STRING_CMD_ERROR3, szMsg, RC_STRING_MAX_SIZE);
934 ConErrPrintf(szMsg, err);
935 return;
936 }
937 }
938
939 if (!SetStdHandle (STD_ERROR_HANDLE, hFile))
940 {
941 LoadString(CMD_ModuleHandle, STRING_CMD_ERROR3, szMsg, RC_STRING_MAX_SIZE);
942 ConErrPrintf(szMsg, err);
943 return;
944 }
945
946 if (nRedirFlags & ERROR_APPEND)
947 {
948 LONG lHighPos = 0;
949
950 if (GetFileType (hFile) == FILE_TYPE_DISK)
951 SetFilePointer (hFile, 0, &lHighPos, FILE_END);
952 }
953 #ifdef _DEBUG
954 DebugPrintf (_T("Error redirected to: %s\n"), err);
955 #endif
956 }
957 else if (hOldConErr != INVALID_HANDLE_VALUE)
958 {
959 /* Restore original stderr */
960 HANDLE hErr = GetStdHandle (STD_ERROR_HANDLE);
961 SetStdHandle (STD_ERROR_HANDLE, hOldConErr);
962 if (hOldConErr != hErr)
963 CloseHandle (hErr);
964 hOldConErr = INVALID_HANDLE_VALUE;
965 }
966
967 if(bc)
968 bNewBatch = FALSE;
969 #endif
970
971 /* process final command */
972 DoCommand (s);
973
974 #ifdef FEATURE_REDIRECTION
975 if(bNewBatch && bc)
976 AddBatchRedirection(in, out, err);
977 /* close old stdin file */
978 #if 0 /* buggy implementation */
979 SetStdHandle (STD_INPUT_HANDLE, hOldConIn);
980 if ((hFile[0] != INVALID_HANDLE_VALUE) &&
981 (hFile[0] != hOldConIn))
982 {
983 /* delete old stdin file, if it is a real file */
984 CloseHandle (hFile[0]);
985 hFile[0] = INVALID_HANDLE_VALUE;
986 DeleteFile (szFileName[0]);
987 *szFileName[0] = _T('\0');
988 }
989
990 /* Restore original STDIN */
991 if (hOldConIn != INVALID_HANDLE_VALUE)
992 {
993 HANDLE hIn = GetStdHandle (STD_INPUT_HANDLE);
994 SetStdHandle (STD_INPUT_HANDLE, hOldConIn);
995 if (hOldConIn != hIn)
996 CloseHandle (hIn);
997 hOldConIn = INVALID_HANDLE_VALUE;
998 }
999 else
1000 {
1001 #ifdef _DEBUG
1002 DebugPrintf (_T("Can't restore STDIN! Is invalid!!\n"), out);
1003 #endif
1004 }
1005 #endif /* buggy implementation */
1006
1007
1008 if (hOldConIn != INVALID_HANDLE_VALUE)
1009 {
1010 HANDLE hIn = GetStdHandle (STD_INPUT_HANDLE);
1011 SetStdHandle (STD_INPUT_HANDLE, hOldConIn);
1012 if (hIn == INVALID_HANDLE_VALUE)
1013 {
1014 #ifdef _DEBUG
1015 DebugPrintf (_T("Previous STDIN is invalid!!\n"));
1016 #endif
1017 }
1018 else
1019 {
1020 if (GetFileType (hIn) == FILE_TYPE_DISK)
1021 {
1022 if (hFile[0] == hIn)
1023 {
1024 CloseHandle (hFile[0]);
1025 hFile[0] = INVALID_HANDLE_VALUE;
1026 DeleteFile (szFileName[0]);
1027 *szFileName[0] = _T('\0');
1028 }
1029 else
1030 {
1031 #ifdef _DEBUG
1032 DebugPrintf (_T("hFile[0] and hIn dont match!!!\n"));
1033 #endif
1034 }
1035 }
1036 }
1037 }
1038
1039
1040 /* Restore original STDOUT */
1041 if (hOldConOut != INVALID_HANDLE_VALUE)
1042 {
1043 HANDLE hOut = GetStdHandle (STD_OUTPUT_HANDLE);
1044 SetStdHandle (STD_OUTPUT_HANDLE, hOldConOut);
1045 if (hOldConOut != hOut)
1046 CloseHandle (hOut);
1047 hOldConOut = INVALID_HANDLE_VALUE;
1048 }
1049
1050 /* Restore original STDERR */
1051 if (hOldConErr != INVALID_HANDLE_VALUE)
1052 {
1053 HANDLE hErr = GetStdHandle (STD_ERROR_HANDLE);
1054 SetStdHandle (STD_ERROR_HANDLE, hOldConErr);
1055 if (hOldConErr != hErr)
1056 CloseHandle (hErr);
1057 hOldConErr = INVALID_HANDLE_VALUE;
1058 }
1059 #endif /* FEATURE_REDIRECTION */
1060 }
1061
1062 BOOL
1063 GrowIfNecessary ( UINT needed, LPTSTR* ret, UINT* retlen )
1064 {
1065 if ( *ret && needed < *retlen )
1066 return TRUE;
1067 *retlen = needed;
1068 if ( *ret )
1069 free ( *ret );
1070 *ret = (LPTSTR)malloc ( *retlen * sizeof(TCHAR) );
1071 if ( !*ret )
1072 SetLastError ( ERROR_OUTOFMEMORY );
1073 return *ret != NULL;
1074 }
1075
1076 LPCTSTR
1077 GetEnvVarOrSpecial ( LPCTSTR varName )
1078 {
1079 static LPTSTR ret = NULL;
1080 static UINT retlen = 0;
1081 UINT size;
1082
1083 size = GetEnvironmentVariable ( varName, ret, retlen );
1084 if ( size > retlen )
1085 {
1086 if ( !GrowIfNecessary ( size, &ret, &retlen ) )
1087 return NULL;
1088 size = GetEnvironmentVariable ( varName, ret, retlen );
1089 }
1090 if ( size )
1091 return ret;
1092
1093 /* env var doesn't exist, look for a "special" one */
1094 /* %CD% */
1095 if (_tcsicmp(varName,_T("cd")) ==0)
1096 {
1097 size = GetCurrentDirectory ( retlen, ret );
1098 if ( size > retlen )
1099 {
1100 if ( !GrowIfNecessary ( size, &ret, &retlen ) )
1101 return NULL;
1102 size = GetCurrentDirectory ( retlen, ret );
1103 }
1104 if ( !size )
1105 return NULL;
1106 return ret;
1107 }
1108 /* %TIME% */
1109 else if (_tcsicmp(varName,_T("time")) ==0)
1110 {
1111 SYSTEMTIME t;
1112 if ( !GrowIfNecessary ( MAX_PATH, &ret, &retlen ) )
1113 return NULL;
1114 GetSystemTime(&t);
1115 _sntprintf ( ret, retlen, _T("%02d%c%02d%c%02d%c%02d"),
1116 t.wHour, cTimeSeparator, t.wMinute, cTimeSeparator,
1117 t.wSecond, cDecimalSeparator, t.wMilliseconds );
1118 return ret;
1119 }
1120 /* %DATE% */
1121 else if (_tcsicmp(varName,_T("date")) ==0)
1122 {
1123 LPTSTR tmp;
1124
1125 if ( !GrowIfNecessary ( MAX_PATH, &ret, &retlen ) )
1126 return NULL;
1127 size = GetDateFormat(LOCALE_USER_DEFAULT, 0, NULL, _T("ddd"), ret, retlen );
1128 /* TODO FIXME - test whether GetDateFormat() can return a value indicating the buffer wasn't big enough */
1129 if ( !size )
1130 return NULL;
1131 tmp = ret + _tcslen(ret);
1132 *tmp++ = _T(' ');
1133 size = GetDateFormat(LOCALE_USER_DEFAULT, DATE_SHORTDATE, NULL, NULL, tmp, retlen-(tmp-ret));
1134 /* TODO FIXME - test whether GetDateFormat() can return a value indicating the buffer wasn't big enough */
1135 if ( !size )
1136 return NULL;
1137 return ret;
1138 }
1139
1140 /* %RANDOM% */
1141 else if (_tcsicmp(varName,_T("random")) ==0)
1142 {
1143 if ( !GrowIfNecessary ( MAX_PATH, &ret, &retlen ) )
1144 return NULL;
1145 /* Get random number */
1146 _itot(rand(),ret,10);
1147 return ret;
1148 }
1149
1150 /* %CMDCMDLINE% */
1151 else if (_tcsicmp(varName,_T("cmdcmdline")) ==0)
1152 {
1153 return GetCommandLine();
1154 }
1155
1156 /* %CMDEXTVERSION% */
1157 else if (_tcsicmp(varName,_T("cmdextversion")) ==0)
1158 {
1159 if ( !GrowIfNecessary ( MAX_PATH, &ret, &retlen ) )
1160 return NULL;
1161 /* Set version number to 2 */
1162 _itot(2,ret,10);
1163 return ret;
1164 }
1165
1166 /* %ERRORLEVEL% */
1167 else if (_tcsicmp(varName,_T("errorlevel")) ==0)
1168 {
1169 if ( !GrowIfNecessary ( MAX_PATH, &ret, &retlen ) )
1170 return NULL;
1171 _itot(nErrorLevel,ret,10);
1172 return ret;
1173 }
1174
1175 return _T(""); /* not found - return empty string */
1176 }
1177
1178 LPCTSTR
1179 GetParsedEnvVar ( LPCTSTR varName, UINT* varNameLen, BOOL ModeSetA )
1180 {
1181 static LPTSTR ret = NULL;
1182 static UINT retlen = 0;
1183 LPTSTR p, tmp;
1184 UINT size;
1185
1186 if ( varNameLen )
1187 *varNameLen = 0;
1188 SetLastError(0);
1189 if ( *varName++ != '%' )
1190 return NULL;
1191 switch ( *varName )
1192 {
1193 case _T('0'):
1194 case _T('1'):
1195 case _T('2'):
1196 case _T('3'):
1197 case _T('4'):
1198 case _T('5'):
1199 case _T('6'):
1200 case _T('7'):
1201 case _T('8'):
1202 case _T('9'):
1203 if ((tmp = FindArg (*varName - _T('0'))))
1204 {
1205 if ( varNameLen )
1206 *varNameLen = 2;
1207 if ( !*tmp )
1208 return _T("");
1209 if ( !GrowIfNecessary ( _tcslen(tmp)+1, &ret, &retlen ) )
1210 return NULL;
1211 _tcscpy ( ret, tmp );
1212 return ret;
1213 }
1214 if ( !GrowIfNecessary ( 3, &ret, &retlen ) )
1215 return NULL;
1216 ret[0] = _T('%');
1217 ret[1] = *varName;
1218 ret[2] = 0;
1219 if ( varNameLen )
1220 *varNameLen = 2;
1221 return ret;
1222
1223 case _T('%'):
1224 if ( !GrowIfNecessary ( 2, &ret, &retlen ) )
1225 return NULL;
1226 ret[0] = _T('%');
1227 ret[1] = 0;
1228 if ( varNameLen )
1229 *varNameLen = 2;
1230 return ret;
1231
1232 case _T('?'):
1233 /* TODO FIXME 10 is only max size for 32-bit */
1234 if ( !GrowIfNecessary ( 11, &ret, &retlen ) )
1235 return NULL;
1236 _sntprintf ( ret, retlen, _T("%u"), nErrorLevel);
1237 ret[retlen-1] = 0;
1238 if ( varNameLen )
1239 *varNameLen = 2;
1240 return ret;
1241 }
1242 if ( ModeSetA )
1243 {
1244 /* HACK for set/a */
1245 if ( !GrowIfNecessary ( 2, &ret, &retlen ) )
1246 return NULL;
1247 ret[0] = _T('%');
1248 ret[1] = 0;
1249 if ( varNameLen )
1250 *varNameLen = 1;
1251 return ret;
1252 }
1253 p = _tcschr ( varName, _T('%') );
1254 if ( !p )
1255 {
1256 SetLastError ( ERROR_INVALID_PARAMETER );
1257 return NULL;
1258 }
1259 size = p-varName;
1260 if ( varNameLen )
1261 *varNameLen = size + 2;
1262 p = alloca ( (size+1) * sizeof(TCHAR) );
1263 memmove ( p, varName, size * sizeof(TCHAR) );
1264 p[size] = 0;
1265 varName = p;
1266 return GetEnvVarOrSpecial ( varName );
1267 }
1268
1269
1270 /*
1271 * do the prompt/input/process loop
1272 *
1273 */
1274
1275 static INT
1276 ProcessInput (BOOL bFlag)
1277 {
1278 TCHAR commandline[CMDLINE_LENGTH];
1279 TCHAR readline[CMDLINE_LENGTH];
1280 LPTSTR ip;
1281 LPTSTR cp;
1282 LPCTSTR tmp;
1283 BOOL bEchoThisLine;
1284 BOOL bModeSetA;
1285 BOOL bIsBatch;
1286
1287 do
1288 {
1289 /* if no batch input then... */
1290 if (!(ip = ReadBatchLine (&bEchoThisLine)))
1291 {
1292 if (bFlag)
1293 return 0;
1294
1295 ReadCommand (readline, CMDLINE_LENGTH);
1296 ip = readline;
1297 bEchoThisLine = FALSE;
1298 bIsBatch = FALSE;
1299 }
1300 else
1301 {
1302 bIsBatch = TRUE;
1303 }
1304
1305 /* skip leading blanks */
1306 while ( _istspace(*ip) )
1307 ++ip;
1308
1309 cp = commandline;
1310 bModeSetA = FALSE;
1311 while (*ip)
1312 {
1313 if ( *ip == _T('%') )
1314 {
1315 UINT envNameLen;
1316 LPCTSTR envVal = GetParsedEnvVar ( ip, &envNameLen, bModeSetA );
1317 if ( !envVal )
1318 return 1;
1319 ip += envNameLen;
1320 cp = _stpcpy ( cp, envVal );
1321 continue;
1322 }
1323
1324 if (_istcntrl (*ip))
1325 *ip = _T(' ');
1326 *cp++ = *ip++;
1327
1328 /* HACK HACK HACK check whether bModeSetA needs to be toggled */
1329 *cp = 0;
1330 tmp = commandline;
1331 tmp += _tcsspn(tmp,_T(" \t"));
1332 /* first we find and skip and pre-redirections... */
1333 while ( _tcschr(_T("<>"),*tmp)
1334 || !_tcsncmp(tmp,_T("1>"),2)
1335 || !_tcsncmp(tmp,_T("2>"),2) )
1336 {
1337 if ( _istdigit(*tmp) )
1338 tmp += 2;
1339 else
1340 tmp++;
1341 tmp += _tcsspn(tmp,_T(" \t"));
1342 if ( *tmp == _T('\"') )
1343 {
1344 tmp = _tcschr(tmp+1,_T('\"'));
1345 if ( tmp )
1346 ++tmp;
1347 }
1348 else
1349 tmp = _tcspbrk(tmp,_T(" \t"));
1350 tmp += _tcsspn(tmp,_T(" \t"));
1351 }
1352 /* we should now be pointing to the actual command
1353 * (if there is one yet)*/
1354 if ( tmp )
1355 {
1356 /* if we're currently substituting ( which is default )
1357 * check to see if we've parsed out a set/a. if so, we
1358 * need to disable substitution until we come across a
1359 * redirection */
1360 if ( !bModeSetA )
1361 {
1362 /* look for set /a */
1363 if ( !_tcsnicmp(tmp,_T("set"),3) )
1364 {
1365 tmp += 3;
1366 tmp += _tcsspn(tmp,_T(" \t"));
1367 if ( !_tcsnicmp(tmp,_T("/a"),2) )
1368 bModeSetA = TRUE;
1369 }
1370 }
1371 /* if we're not currently substituting, it means we're
1372 * already inside a set /a. now we need to look for
1373 * a redirection in order to turn redirection back on */
1374 else
1375 {
1376 /* look for redirector of some kind after the command */
1377 while ( (tmp = _tcspbrk ( tmp, _T("^<>|") )) )
1378 {
1379 if ( *tmp == _T('^') )
1380 {
1381 if ( _tcschr(_T("<>|&"), *++tmp ) && *tmp )
1382 ++tmp;
1383 }
1384 else
1385 {
1386 bModeSetA = FALSE;
1387 break;
1388 }
1389 }
1390 }
1391 }
1392 }
1393
1394 *cp = _T('\0');
1395
1396 /* strip trailing spaces */
1397 while ((--cp >= commandline) && _istspace (*cp));
1398
1399 *(cp + 1) = _T('\0');
1400
1401 /* JPP 19980807 */
1402 /* Echo batch file line */
1403 if (bEchoThisLine)
1404 {
1405 PrintPrompt ();
1406 ConOutPuts (commandline);
1407 }
1408
1409 if (*commandline)
1410 {
1411 ParseCommandLine (commandline);
1412 if (bEcho && !bIgnoreEcho && (!bIsBatch || bEchoThisLine))
1413 ConOutChar ('\n');
1414 bIgnoreEcho = FALSE;
1415 }
1416 }
1417 while (!bCanExit || !bExit);
1418
1419 return 0;
1420 }
1421
1422
1423 /*
1424 * control-break handler.
1425 */
1426 BOOL WINAPI BreakHandler (DWORD dwCtrlType)
1427 {
1428
1429 if ((dwCtrlType != CTRL_C_EVENT) &&
1430 (dwCtrlType != CTRL_BREAK_EVENT))
1431 return FALSE;
1432
1433 if (bChildProcessRunning == TRUE)
1434 {
1435 GenerateConsoleCtrlEvent (CTRL_C_EVENT,
1436 dwChildProcessId);
1437 return TRUE;
1438 }
1439
1440 /* FIXME: Handle batch files */
1441
1442 /* FIXME: Print "^C" */
1443
1444
1445 return TRUE;
1446 }
1447
1448
1449 VOID AddBreakHandler (VOID)
1450 {
1451 SetConsoleCtrlHandler ((PHANDLER_ROUTINE)BreakHandler, TRUE);
1452 }
1453
1454
1455 VOID RemoveBreakHandler (VOID)
1456 {
1457 SetConsoleCtrlHandler ((PHANDLER_ROUTINE)BreakHandler, FALSE);
1458 }
1459
1460
1461 /*
1462 * show commands and options that are available.
1463 *
1464 */
1465 #if 0
1466 static VOID
1467 ShowCommands (VOID)
1468 {
1469 /* print command list */
1470 ConOutResPuts(STRING_CMD_HELP1);
1471 PrintCommandList();
1472
1473 /* print feature list */
1474 ConOutResPuts(STRING_CMD_HELP2);
1475
1476 #ifdef FEATURE_ALIASES
1477 ConOutResPuts(STRING_CMD_HELP3);
1478 #endif
1479 #ifdef FEATURE_HISTORY
1480 ConOutResPuts(STRING_CMD_HELP4);
1481 #endif
1482 #ifdef FEATURE_UNIX_FILENAME_COMPLETION
1483 ConOutResPuts(STRING_CMD_HELP5);
1484 #endif
1485 #ifdef FEATURE_DIRECTORY_STACK
1486 ConOutResPuts(STRING_CMD_HELP6);
1487 #endif
1488 #ifdef FEATURE_REDIRECTION
1489 ConOutResPuts(STRING_CMD_HELP7);
1490 #endif
1491 ConOutChar(_T('\n'));
1492 }
1493 #endif
1494
1495 /*
1496 * set up global initializations and process parameters
1497 *
1498 * argc - number of parameters to command.com
1499 * argv - command-line parameters
1500 *
1501 */
1502 static VOID
1503 Initialize (int argc, TCHAR* argv[])
1504 {
1505 TCHAR commandline[CMDLINE_LENGTH];
1506 TCHAR ModuleName[_MAX_PATH + 1];
1507 INT i;
1508 TCHAR lpBuffer[2];
1509
1510 //INT len;
1511 //TCHAR *ptr, *cmdLine;
1512
1513 /* get version information */
1514 osvi.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
1515 GetVersionEx (&osvi);
1516
1517 /* Some people like to run ReactOS cmd.exe on Win98, it helps in the
1518 * build process. So don't link implicitly against ntdll.dll, load it
1519 * dynamically instead */
1520
1521 if (osvi.dwPlatformId == VER_PLATFORM_WIN32_NT)
1522 {
1523 /* ntdll is always present on NT */
1524 NtDllModule = GetModuleHandle(TEXT("ntdll.dll"));
1525 }
1526 else
1527 {
1528 /* not all 9x versions have a ntdll.dll, try to load it */
1529 NtDllModule = LoadLibrary(TEXT("ntdll.dll"));
1530 }
1531
1532 if (NtDllModule != NULL)
1533 {
1534 NtQueryInformationProcessPtr = (NtQueryInformationProcessProc)GetProcAddress(NtDllModule, "NtQueryInformationProcess");
1535 NtReadVirtualMemoryPtr = (NtReadVirtualMemoryProc)GetProcAddress(NtDllModule, "NtReadVirtualMemory");
1536 }
1537
1538
1539 #ifdef _DEBUG
1540 DebugPrintf (_T("[command args:\n"));
1541 for (i = 0; i < argc; i++)
1542 {
1543 DebugPrintf (_T("%d. %s\n"), i, argv[i]);
1544 }
1545 DebugPrintf (_T("]\n"));
1546 #endif
1547
1548 InitLocale ();
1549
1550 /* get default input and output console handles */
1551 hOut = GetStdHandle (STD_OUTPUT_HANDLE);
1552 hIn = GetStdHandle (STD_INPUT_HANDLE);
1553
1554 /* Set EnvironmentVariable PROMPT if it does not exists any env value.
1555 for you can change the EnvirommentVariable for prompt before cmd start
1556 this patch are not 100% right, if it does not exists a PROMPT value cmd should use
1557 $P$G as defualt not set EnvirommentVariable PROMPT to $P$G if it does not exists */
1558 if (GetEnvironmentVariable(_T("PROMPT"),lpBuffer, sizeof(lpBuffer) / sizeof(lpBuffer[0])) == 0)
1559 SetEnvironmentVariable (_T("PROMPT"), _T("$P$G"));
1560
1561
1562 if (argc >= 2 && !_tcsncmp (argv[1], _T("/?"), 2))
1563 {
1564 ConOutResPaging(TRUE,STRING_CMD_HELP8);
1565 ExitProcess(0);
1566 }
1567 SetConsoleMode (hIn, ENABLE_PROCESSED_INPUT);
1568
1569 #ifdef INCLUDE_CMD_CHDIR
1570 InitLastPath ();
1571 #endif
1572
1573 #ifdef FATURE_ALIASES
1574 InitializeAlias ();
1575 #endif
1576
1577 if (argc >= 2)
1578 {
1579 for (i = 1; i < argc; i++)
1580 {
1581 if (!_tcsicmp (argv[i], _T("/p")))
1582 {
1583 if (!IsExistingFile (_T("\\autoexec.bat")))
1584 {
1585 #ifdef INCLUDE_CMD_DATE
1586 cmd_date (_T(""), _T(""));
1587 #endif
1588 #ifdef INCLUDE_CMD_TIME
1589 cmd_time (_T(""), _T(""));
1590 #endif
1591 }
1592 else
1593 {
1594 ParseCommandLine (_T("\\autoexec.bat"));
1595 }
1596 bCanExit = FALSE;
1597 }
1598 else if (!_tcsicmp (argv[i], _T("/c")))
1599 {
1600 /* This just runs a program and exits */
1601 ++i;
1602 if (i < argc)
1603 {
1604 _tcscpy (commandline, argv[i]);
1605 while (++i < argc)
1606 {
1607 _tcscat (commandline, _T(" "));
1608 _tcscat (commandline, argv[i]);
1609 }
1610
1611 ParseCommandLine(commandline);
1612 ExitProcess (ProcessInput (TRUE));
1613 }
1614 else
1615 {
1616 ExitProcess (0);
1617 }
1618 }
1619 else if (!_tcsicmp (argv[i], _T("/k")))
1620 {
1621 /* This just runs a program and remains */
1622 ++i;
1623 if (i < argc)
1624 {
1625 _tcscpy (commandline, _T("\""));
1626 _tcscat (commandline, argv[i]);
1627 _tcscat (commandline, _T("\""));
1628 while (++i < argc)
1629 {
1630 _tcscat (commandline, _T(" "));
1631 _tcscat (commandline, argv[i]);
1632 }
1633 ParseCommandLine(commandline);
1634 }
1635 }
1636 #ifdef INCLUDE_CMD_COLOR
1637 else if (!_tcsnicmp (argv[i], _T("/t:"), 3))
1638 {
1639 /* process /t (color) argument */
1640 wDefColor = (WORD)_tcstoul (&argv[i][3], NULL, 16);
1641 wColor = wDefColor;
1642 SetScreenColor (wColor, TRUE);
1643 }
1644 #endif
1645 }
1646 }
1647
1648 /* run cmdstart.bat */
1649 if (IsExistingFile (_T("cmdstart.bat")))
1650 {
1651 ParseCommandLine (_T("cmdstart.bat"));
1652 }
1653 else if (IsExistingFile (_T("\\cmdstart.bat")))
1654 {
1655 ParseCommandLine (_T("\\cmdstart.bat"));
1656 }
1657
1658 #ifdef FEATURE_DIR_STACK
1659 /* initialize directory stack */
1660 InitDirectoryStack ();
1661 #endif
1662
1663
1664 #ifdef FEATURE_HISTORY
1665 /*initialize history*/
1666 InitHistory();
1667 #endif
1668
1669 /* Set COMSPEC environment variable */
1670 if (0 != GetModuleFileName (NULL, ModuleName, _MAX_PATH + 1))
1671 {
1672 ModuleName[_MAX_PATH] = _T('\0');
1673 SetEnvironmentVariable (_T("COMSPEC"), ModuleName);
1674 }
1675
1676 /* add ctrl break handler */
1677 AddBreakHandler ();
1678 }
1679
1680
1681 static VOID Cleanup (int argc, TCHAR *argv[])
1682 {
1683 /* run cmdexit.bat */
1684 if (IsExistingFile (_T("cmdexit.bat")))
1685 {
1686 ConErrResPuts(STRING_CMD_ERROR5);
1687
1688 ParseCommandLine (_T("cmdexit.bat"));
1689 }
1690 else if (IsExistingFile (_T("\\cmdexit.bat")))
1691 {
1692 ConErrResPuts (STRING_CMD_ERROR5);
1693 ParseCommandLine (_T("\\cmdexit.bat"));
1694 }
1695
1696 #ifdef FEATURE_ALIASES
1697 DestroyAlias ();
1698 #endif
1699
1700 #ifdef FEATURE_DIECTORY_STACK
1701 /* destroy directory stack */
1702 DestroyDirectoryStack ();
1703 #endif
1704
1705 #ifdef INCLUDE_CMD_CHDIR
1706 FreeLastPath ();
1707 #endif
1708
1709 #ifdef FEATURE_HISTORY
1710 CleanHistory();
1711 #endif
1712
1713
1714 /* remove ctrl break handler */
1715 RemoveBreakHandler ();
1716 SetConsoleMode( GetStdHandle( STD_INPUT_HANDLE ),
1717 ENABLE_LINE_INPUT | ENABLE_PROCESSED_INPUT | ENABLE_ECHO_INPUT );
1718
1719 if (NtDllModule != NULL)
1720 {
1721 FreeLibrary(NtDllModule);
1722 }
1723 }
1724
1725 /*
1726 * main function
1727 */
1728 #ifdef _UNICODE
1729 int _main(void)
1730 #else
1731 int _main (int argc, char *argv[])
1732 #endif
1733 {
1734 TCHAR startPath[MAX_PATH];
1735 CONSOLE_SCREEN_BUFFER_INFO Info;
1736 INT nExitCode;
1737 #ifdef _UNICODE
1738 PWCHAR * argv;
1739 int argc=0;
1740 argv = CommandLineToArgvW(GetCommandLineW(), &argc);
1741 #endif
1742
1743 GetCurrentDirectory(MAX_PATH,startPath);
1744 _tchdir(startPath);
1745
1746 SetFileApisToOEM();
1747 InputCodePage= 0;
1748 OutputCodePage = 0;
1749
1750 hConsole = CreateFile(_T("CONOUT$"), GENERIC_READ|GENERIC_WRITE,
1751 FILE_SHARE_READ|FILE_SHARE_WRITE, NULL,
1752 OPEN_EXISTING, 0, NULL);
1753 if (GetConsoleScreenBufferInfo(hConsole, &Info) == FALSE)
1754 {
1755 ConErrFormatMessage(GetLastError());
1756 return(1);
1757 }
1758 wColor = Info.wAttributes;
1759 wDefColor = wColor;
1760
1761 InputCodePage= GetConsoleCP();
1762 OutputCodePage = GetConsoleOutputCP();
1763 CMD_ModuleHandle = GetModuleHandle(NULL);
1764
1765 /* check switches on command-line */
1766 Initialize(argc, argv);
1767
1768 /* call prompt routine */
1769 nExitCode = ProcessInput(FALSE);
1770
1771 /* do the cleanup */
1772 Cleanup(argc, argv);
1773
1774 return(nExitCode);
1775 }
1776
1777 /* EOF */