Fix a CD bug spotted by ravelo_. This is simlair to bug 690. cd foo\"bar", cd ...
[reactos.git] / reactos / subsys / system / cmd / internal.c
1 /*
2 * INTERNAL.C - command.com internal commands.
3 *
4 *
5 * History:
6 *
7 * 17/08/94 (Tim Norman)
8 * started.
9 *
10 * 08/08/95 (Matt Rains)
11 * i have cleaned up the source code. changes now bring this source into
12 * guidelines for recommended programming practice.
13 *
14 * cd()
15 * started.
16 *
17 * dir()
18 * i have added support for file attributes to the DIR() function. the
19 * routine adds "d" (directory) and "r" (read only) output. files with the
20 * system attribute have the filename converted to lowercase. files with
21 * the hidden attribute are not displayed.
22 *
23 * i have added support for directorys. now if the directory attribute is
24 * detected the file size if replaced with the string "<dir>".
25 *
26 * ver()
27 * started.
28 *
29 * md()
30 * started.
31 *
32 * rd()
33 * started.
34 *
35 * del()
36 * started.
37 *
38 * does not support wildcard selection.
39 *
40 * todo: add delete directory support.
41 * add recursive directory delete support.
42 *
43 * ren()
44 * started.
45 *
46 * does not support wildcard selection.
47 *
48 * todo: add rename directory support.
49 *
50 * a general structure has been used for the cd, rd and md commands. this
51 * will be better in the long run. it is too hard to maintain such diverse
52 * functions when you are involved in a group project like this.
53 *
54 * 12/14/95 (Tim Norman)
55 * fixed DIR so that it will stick \*.* if a directory is specified and
56 * that it will stick on .* if a file with no extension is specified or
57 * *.* if it ends in a \
58 *
59 * 1/6/96 (Tim Norman)
60 * added an isatty call to DIR so it won't prompt for keypresses unless
61 * stdin and stdout are the console.
62 *
63 * changed parameters to be mutually consistent to make calling the
64 * functions easier
65 *
66 * rem()
67 * started.
68 *
69 * doskey()
70 * started.
71 *
72 * 01/22/96 (Oliver Mueller)
73 * error messages are now handled by perror.
74 *
75 * 02/05/96 (Tim Norman)
76 * converted all functions to accept first/rest parameters
77 *
78 * 07/26/96 (Tim Norman)
79 * changed return values to int instead of void
80 *
81 * path() started.
82 *
83 * 12/23/96 (Aaron Kaufman)
84 * rewrote dir() to mimic MS-DOS's dir
85 *
86 * 01/28/97 (Tim Norman)
87 * cleaned up Aaron's DIR code
88 *
89 * 06/13/97 (Tim Norman)
90 * moved DIR code to dir.c
91 * re-implemented Aaron's DIR code
92 *
93 * 06/14/97 (Steffan Kaiser)
94 * ctrl-break handling
95 * bug fixes
96 *
97 * 27-Jul-1998 (John P Price <linux-guru@gcfl.net>)
98 * added config.h include
99 *
100 * 03-Dec-1998 (Eric Kohl <ekohl@abo.rhein-zeitung.de>)
101 * Replaced DOS calls by Win32 calls.
102 *
103 * 08-Dec-1998 (Eric Kohl <ekohl@abo.rhein-zeitung.de>)
104 * Added help texts ("/?").
105 *
106 * 18-Dec-1998 (Eric Kohl <ekohl@abo.rhein-zeitung.de>)
107 * Added support for quoted arguments (cd "program files").
108 *
109 * 07-Jan-1999 (Eric Kohl <ekohl@abo.rhein-zeitung.de>)
110 * Clean up.
111 *
112 * 26-Jan-1999 (Eric Kohl <ekohl@abo.rhein-zeitung.de>)
113 * Replaced remaining CRT io functions by Win32 io functions.
114 * Unicode safe!
115 *
116 * 30-Jan-1999 (Eric Kohl <ekohl@abo.rhein-zeitung.de>)
117 * Added "cd -" feature. Changes to the previous directory.
118 *
119 * 15-Mar-1999 (Eric Kohl <ekohl@abo.rhein-zeitung.de>)
120 * Fixed bug in "cd -" feature. If the previous directory was a root
121 * directory, it was ignored.
122 *
123 * 23-Feb-2001 (Carl Nettelblad <cnettel@hem.passagen.se>)
124 * Improved chdir/cd command.
125 *
126 * 02-Apr-2004 (Magnus Olsen <magnus@greatlord.com>)
127 * Remove all hard code string so they can be
128 * translate to other langues.
129 *
130 * 19-jul-2005 (Brandon Turner <turnerb7@msu.edu)
131 * Rewrite the CD, it working as Windows 2000 CMD
132 *
133 * 19-jul-2005 (Magnus Olsen <magnus@greatlord.com)
134 * Add SetRootPath and GetRootPath
135 */
136
137 #include <precomp.h>
138 #include "resource.h"
139
140 #ifdef INCLUDE_CMD_CHDIR
141
142 static LPTSTR lpLastPath;
143
144
145 VOID InitLastPath (VOID)
146 {
147 lpLastPath = NULL;
148 }
149
150
151 VOID FreeLastPath (VOID)
152 {
153 if (lpLastPath)
154 free (lpLastPath);
155 }
156
157 /* help functions for getting current path from drive
158 without changing drive. Return code 0 = ok, 1 = fail.
159 INT GetRootPath("C:",outbuffer,chater size of outbuffer);
160 the first param can have any size, if the the two frist
161 letter are not a drive with : it will get Currentpath on
162 current drive exacly as GetCurrentDirectory does.
163 */
164
165 INT GetRootPath(TCHAR *InPath,TCHAR *OutPath,INT size)
166 {
167 INT retcode = 1;
168
169 if (_tcslen(InPath)>1)
170 {
171 if (InPath[1]==_T(':'))
172 {
173 INT t=0;
174
175 if ((InPath[0] >= _T('0')) && (InPath[0] <= _T('9')))
176 {
177 t = (InPath[0] - _T('0')) +28;
178 }
179
180 if ((InPath[0] >= _T('a')) && (InPath[0] <= _T('z')))
181 {
182 t = (InPath[0] - _T('a')) +1;
183 InPath[0] = t + _T('A') - 1;
184 }
185
186 if ((InPath[0] >= _T('A')) && (InPath[0] <= _T('Z')))
187 {
188 t = (InPath[0] - _T('A')) +1;
189 }
190
191 if (_tgetdcwd(t,OutPath,size) != NULL)
192 {
193 return 0;
194 }
195 }
196 }
197
198 /* fail */
199 if (_tcslen(InPath)>1)
200 {
201 if (InPath[1]==_T(':'))
202 return 1;
203 }
204
205 /* Get current directory */
206 retcode = GetCurrentDirectory(size,OutPath);
207 if (retcode==0)
208 return 1;
209
210 return 0;
211 }
212
213
214 BOOL SetRootPath(TCHAR *InPath)
215 {
216 TCHAR oldpath[MAX_PATH];
217 TCHAR OutPath[MAX_PATH];
218 TCHAR OutPathUpper[MAX_PATH];
219 BOOL fail;
220
221
222 /* Get The current directory path and save it */
223 fail = GetCurrentDirectory(MAX_PATH,oldpath);
224 if (!fail)
225 return 1;
226
227 /* Get current drive directory path if C: was only pass down*/
228
229 if (_tcsncicmp(&InPath[1],_T(":\\"),2)!=0)
230 {
231 if (!GetRootPath(InPath,OutPathUpper,MAX_PATH))
232 _tcscpy(OutPathUpper,InPath);
233 }
234 else
235 {
236 _tcscpy(OutPathUpper,InPath);
237 }
238
239 _tcsupr(OutPathUpper);
240 GetLongPathName(OutPathUpper, OutPath, MAX_PATH);
241
242 fail = SetCurrentDirectory(OutPath);
243 if (!fail)
244 return 1;
245
246
247
248 SetCurrentDirectory(OutPath);
249 GetCurrentDirectory(MAX_PATH,OutPath);
250 _tchdir(OutPath);
251
252 if (_tcsncicmp(OutPath,oldpath,2)!=0)
253 SetCurrentDirectory(oldpath);
254
255 return 0;
256 }
257
258
259 /*
260 * CD / CHDIR
261 *
262 */
263 INT cmd_chdir (LPTSTR cmd, LPTSTR param)
264 {
265
266 WIN32_FIND_DATA f;
267 HANDLE hFile;
268 BOOL bChangeDrive = FALSE;
269 TCHAR szPath[MAX_PATH];
270 TCHAR szFinalPath[MAX_PATH];
271 TCHAR * tmpPath;
272 TCHAR szCurrent[MAX_PATH];
273 TCHAR szMsg[RC_STRING_MAX_SIZE];
274 INT i;
275
276
277 /* Filter out special cases first */
278
279 /* Print Help */
280 if (!_tcsncmp(param, _T("/?"), 2))
281 {
282 ConOutResPaging(TRUE,STRING_CD_HELP);
283 return 0;
284 }
285
286 /* Set Error Level to Success */
287 nErrorLevel = 0;
288
289 /* Input String Contains /D Switch */
290 if (!_tcsncicmp(param, _T("/D"), 2))
291 {
292 bChangeDrive = TRUE;
293 tmpPath = _tcsstr(param,_T(" "));
294 tmpPath++;
295 _tcscpy(szPath,tmpPath);
296
297 }
298 else
299 {
300 _tcscpy(szPath,param);
301 }
302
303 /* Print Current Directory on a disk */
304 if (_tcslen(szPath) == 2 && szPath[1] == _T(':'))
305 {
306 if(GetRootPath(szPath,szCurrent,MAX_PATH))
307 {
308 nErrorLevel = 1;
309 return 1;
310 }
311 ConOutPuts(szCurrent);
312 return 0;
313 }
314
315 /* Get Current Directory */
316 GetRootPath(_T("."),szCurrent,MAX_PATH);
317
318 /* Remove " */
319 i = 0;
320 while(i < _tcslen(szPath))
321 {
322 if(szPath[i] == _T('\"'))
323 memmove(&szPath[i],&szPath[i + 1], _tcslen(&szPath[i]) * sizeof(TCHAR));
324 else
325 i++;
326 }
327
328 tmpPath = szPath;
329 while (_istspace (*tmpPath))
330 tmpPath++;
331 _tcscpy(szPath,tmpPath);
332
333 if (szPath[0] == _T('\0'))
334 {
335 ConOutPuts(szCurrent);
336 return 0;
337 }
338
339
340 /* change to full path if relative path was given */
341 GetFullPathName(szPath,MAX_PATH,szFinalPath,NULL);
342
343 if(szFinalPath[_tcslen(szFinalPath) - 1] == _T('\\') && _tcslen(szFinalPath) > 3)
344 szFinalPath[_tcslen(szFinalPath) - 1] = _T('\0');
345
346 /* Handle Root Directory Alone*/
347 if (_tcslen(szFinalPath) == 3 && szFinalPath[1] == _T(':'))
348 {
349 if(!SetRootPath(szFinalPath))
350 {
351 /* Change prompt if it is one the same drive or /D */
352 if(bChangeDrive || !_tcsncicmp(szFinalPath,szCurrent,1))
353 SetCurrentDirectory(szFinalPath);
354 return 0;
355 }
356 /* Didnt find an directories */
357 LoadString(CMD_ModuleHandle, STRING_ERROR_PATH_NOT_FOUND, szMsg, RC_STRING_MAX_SIZE);
358 ConErrPrintf(szMsg);
359 nErrorLevel = 1;
360 return 1;
361
362 }
363
364 /* Get a list of all the files */
365 hFile = FindFirstFile (szFinalPath, &f);
366
367 do
368 {
369 if(hFile == INVALID_HANDLE_VALUE)
370 {
371 ConErrFormatMessage (GetLastError(), szFinalPath);
372 nErrorLevel = 1;
373 return 1;
374 }
375
376 /* Strip the paths back to the folder they are in */
377 for(i = (_tcslen(szFinalPath) - 1); i > -1; i--)
378 if(szFinalPath[i] != _T('\\'))
379 szFinalPath[i] = _T('\0');
380 else
381 break;
382
383 _tcscat(szFinalPath,f.cFileName);
384
385 if ((f.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) == FILE_ATTRIBUTE_DIRECTORY)
386 {
387 if(!SetRootPath(szFinalPath))
388 {
389 /* Change for /D */
390 if(bChangeDrive)
391 {
392 _tcsupr(szFinalPath);
393 GetLongPathName(szFinalPath, szPath, MAX_PATH);
394 SetCurrentDirectory(szPath);
395 }
396 return 0;
397 }
398
399 }
400 }while(FindNextFile (hFile, &f));
401
402 /* Didnt find an directories */
403 LoadString(CMD_ModuleHandle, STRING_ERROR_PATH_NOT_FOUND, szMsg, RC_STRING_MAX_SIZE);
404 ConErrPrintf(szMsg);
405 nErrorLevel = 1;
406 return 1;
407 }
408
409 #endif
410
411
412
413 #ifdef INCLUDE_CMD_MKDIR
414 /*
415 * MD / MKDIR
416 *
417 */
418 INT cmd_mkdir (LPTSTR cmd, LPTSTR param)
419 {
420 LPTSTR dir; /* pointer to the directory to change to */
421 LPTSTR place; /* used to search for the \ when no space is used */
422 LPTSTR *p = NULL;
423 INT argc;
424
425 if (!_tcsncmp (param, _T("/?"), 2))
426 {
427 ConOutResPaging(TRUE,STRING_MKDIR_HELP);
428 return 0;
429 }
430
431
432 /* check if there is no space between the command and the path */
433 if (param[0] == _T('\0'))
434 {
435 /* search for the \ or . so that both short & long names will work */
436 for (place = cmd; *place; place++)
437 if (*place == _T('.') || *place == _T('\\'))
438 break;
439
440 if (*place)
441 dir = place;
442 else
443 /* signal that there are no parameters */
444 dir = NULL;
445 }
446 else
447 {
448 p = split (param, &argc, FALSE);
449 if (argc > 1)
450 {
451 /*JPP 20-Jul-1998 use standard error message */
452 error_too_many_parameters (param);
453 freep (p);
454 return 1;
455 }
456 else
457 dir = p[0];
458 }
459
460 if (!dir)
461 {
462 ConErrResPuts (STRING_ERROR_REQ_PARAM_MISSING);
463 return 1;
464 }
465
466 /* remove trailing \ if any, but ONLY if dir is not the root dir */
467 if (_tcslen (dir) >= 2 && dir[_tcslen (dir) - 1] == _T('\\'))
468 dir[_tcslen(dir) - 1] = _T('\0');
469
470 if (!CreateDirectory (dir, NULL))
471 {
472 ErrorMessage (GetLastError(), _T("MD"));
473
474 freep (p);
475 return 1;
476 }
477
478 freep (p);
479
480 return 0;
481 }
482 #endif
483
484
485 #ifdef INCLUDE_CMD_RMDIR
486 /*
487 * RD / RMDIR
488 *
489 */
490 INT cmd_rmdir (LPTSTR cmd, LPTSTR param)
491 {
492 LPTSTR dir; /* pointer to the directory to change to */
493 LPTSTR place; /* used to search for the \ when no space is used */
494
495 LPTSTR *p = NULL;
496 INT argc;
497
498 if (!_tcsncmp (param, _T("/?"), 2))
499 {
500 ConOutResPaging(TRUE,STRING_RMDIR_HELP);
501 return 0;
502 }
503
504 /* check if there is no space between the command and the path */
505 if (param[0] == _T('\0'))
506 {
507 /* search for the \ or . so that both short & long names will work */
508 for (place = cmd; *place; place++)
509 if (*place == _T('.') || *place == _T('\\'))
510 break;
511
512 if (*place)
513 dir = place;
514 else
515 /* signal that there are no parameters */
516 dir = NULL;
517 }
518 else
519 {
520 p = split (param, &argc, FALSE);
521 if (argc > 1)
522 {
523 /*JPP 20-Jul-1998 use standard error message */
524 error_too_many_parameters (param);
525 freep (p);
526 return 1;
527 }
528 else
529 dir = p[0];
530 }
531
532 if (!dir)
533 {
534 ConErrResPuts(STRING_ERROR_REQ_PARAM_MISSING);
535 return 1;
536 }
537
538 /* remove trailing \ if any, but ONLY if dir is not the root dir */
539 if (_tcslen (dir) >= 2 && dir[_tcslen (dir) - 1] == _T('\\'))
540 dir[_tcslen(dir) - 1] = _T('\0');
541
542 if (!RemoveDirectory (dir))
543 {
544 ErrorMessage (GetLastError(), _T("RD"));
545 freep (p);
546
547 return 1;
548 }
549
550 freep (p);
551
552 return 0;
553 }
554 #endif
555
556
557 /*
558 * set the exitflag to true
559 *
560 */
561 INT CommandExit (LPTSTR cmd, LPTSTR param)
562 {
563 if (!_tcsncmp (param, _T("/?"), 2))
564 ConOutResPaging(TRUE,STRING_EXIT_HELP);
565
566 if (bc != NULL && _tcsnicmp(param,_T("/b"),2) == 0)
567 {
568 param += 2;
569 while (_istspace (*param))
570 param++;
571 if (_istdigit(*param))
572 nErrorLevel = _ttoi(param);
573 ExitBatch (NULL);
574 }
575
576 else
577 bExit = TRUE;
578
579
580 return 0;
581
582 }
583
584 #ifdef INCLUDE_CMD_REM
585 /*
586 * does nothing
587 *
588 */
589 INT CommandRem (LPTSTR cmd, LPTSTR param)
590 {
591 if (!_tcsncmp (param, _T("/?"), 2))
592 {
593 ConOutResPaging(TRUE,STRING_REM_HELP);
594 }
595
596 return 0;
597 }
598 #endif /* INCLUDE_CMD_REM */
599
600
601 INT CommandShowCommands (LPTSTR cmd, LPTSTR param)
602 {
603 PrintCommandList ();
604 return 0;
605 }
606
607 INT CommandShowCommandsDetail (LPTSTR cmd, LPTSTR param)
608 {
609 PrintCommandListDetail ();
610 return 0;
611 }
612
613 /* EOF */