programs/wcmd/builtins.c

   1 /*
   2  * WCMD - Wine-compatible command line interface - built-in functions.
   3  *
   4  * Copyright (C) 1999 D A Pickles
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  */
  20
  21 /*
  22  * NOTES:
  23  * On entry to each function, global variables quals, param1, param2 contain
  24  * the qualifiers (uppercased and concatenated) and parameters entered, with
  25  * environment-variable and batch parameter substitution already done.
  26  */
  27
  28 /*
  29  * FIXME:
  30  * - No support for pipes, shell parameters
  31  * - Lots of functionality missing from builtins
  32  * - Messages etc need international support
  33  */
  34
  35 #include "wcmd.h"
  36
  37 void WCMD_execute (char *orig_command, char *parameter, char *substitution);
  38
  39 struct env_stack
  40 {
  41   struct env_stack *next;
  42   WCHAR *strings;
  43 };
  44
  45 struct env_stack *saved_environment;
  46
  47 extern HINSTANCE hinst;
  48 extern char *inbuilt[];
  49 extern int echo_mode, verify_mode;
  50 extern char quals[MAX_PATH], param1[MAX_PATH], param2[MAX_PATH];
  51 extern BATCH_CONTEXT *context;
  52 extern DWORD errorlevel;
  53
  54
  55
  56 /****************************************************************************
  57  * WCMD_clear_screen
  58  *
  59  * Clear the terminal screen.
  60  */
  61
  62 void WCMD_clear_screen (void) {
  63
  64   /* Emulate by filling the screen from the top left to bottom right with
  65         spaces, then moving the cursor to the top left afterwards */
  66   CONSOLE_SCREEN_BUFFER_INFO consoleInfo;
  67   HANDLE hStdOut = GetStdHandle(STD_OUTPUT_HANDLE);
  68
  69   if (GetConsoleScreenBufferInfo(hStdOut, &consoleInfo))
  70   {
  71       COORD topLeft;
  72       DWORD screenSize;
  73
  74       screenSize = consoleInfo.dwSize.X * (consoleInfo.dwSize.Y + 1);
  75
  76       topLeft.X = 0;
  77       topLeft.Y = 0;
  78       FillConsoleOutputCharacter(hStdOut, ' ', screenSize, topLeft, &screenSize);
  79       SetConsoleCursorPosition(hStdOut, topLeft);
  80   }
  81 }
  82
  83 /****************************************************************************
  84  * WCMD_change_tty
  85  *
  86  * Change the default i/o device (ie redirect STDin/STDout).
  87  */
  88
  89 void WCMD_change_tty (void) {
  90
  91   WCMD_output (nyi);
  92
  93 }
  94
  95 /****************************************************************************
  96  * WCMD_copy
  97  *
  98  * Copy a file or wildcarded set.
  99  * FIXME: No wildcard support
 100  */
 101
 102 void WCMD_copy (void) {
 103
 104 DWORD count;
 105 WIN32_FIND_DATA fd;
 106 HANDLE hff;
 107 BOOL force, status;
 108 static const char overwrite[] = "Overwrite file (Y/N)?";
 109 char string[8], outpath[MAX_PATH], inpath[MAX_PATH], *infile;
 110
 111   if ((strchr(param1,'*') != NULL) && (strchr(param1,'%') != NULL)) {
 112     WCMD_output ("Wildcards not yet supported\n");
 113     return;
 114   }
 115
 116   /* If no destination supplied, assume current directory */
 117   if (param2[0] == 0x00) {
 118       strcpy(param2, ".");
 119   }
 120
 121   GetFullPathName (param2, sizeof(outpath), outpath, NULL);
 122   hff = FindFirstFile (outpath, &fd);
 123   if (hff != INVALID_HANDLE_VALUE) {
 124     if (fd.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) {
 125       GetFullPathName (param1, sizeof(inpath), inpath, &infile);
 126       strcat (outpath, "\\");
 127       strcat (outpath, infile);
 128     }
 129     FindClose (hff);
 130   }
 131
 132   force = (strstr (quals, "/Y") != NULL);
 133   if (!force) {
 134     hff = FindFirstFile (outpath, &fd);
 135     if (hff != INVALID_HANDLE_VALUE) {
 136       FindClose (hff);
 137       WCMD_output (overwrite);
 138       ReadFile (GetStdHandle(STD_INPUT_HANDLE), string, sizeof(string), &count, NULL);
 139       if (toupper(string[0]) == 'Y') force = TRUE;
 140     }
 141     else force = TRUE;
 142   }
 143   if (force) {
 144     status = CopyFile (param1, outpath, FALSE);
 145     if (!status) WCMD_print_error ();
 146   }
 147 }
 148
 149 /****************************************************************************
 150  * WCMD_create_dir
 151  *
 152  * Create a directory.
 153  */
 154
 155 void WCMD_create_dir (void) {
 156
 157   if (!CreateDirectory (param1, NULL)) WCMD_print_error ();
 158 }
 159
 160 /****************************************************************************
 161  * WCMD_delete
 162  *
 163  * Delete a file or wildcarded set.
 164  *
 165  */
 166
 167 void WCMD_delete (int recurse) {
 168
 169 WIN32_FIND_DATA fd;
 170 HANDLE hff;
 171 char fpath[MAX_PATH];
 172 char *p;
 173
 174   hff = FindFirstFile (param1, &fd);
 175   if (hff == INVALID_HANDLE_VALUE) {
 176     WCMD_output ("%s :File Not Found\n",param1);
 177     return;
 178   }
 179   if ((strchr(param1,'*') == NULL) && (strchr(param1,'?') == NULL)
 180         && (!recurse) && (fd.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)) {
 181     strcat (param1, "\\*");
 182     FindClose(hff);
 183     WCMD_delete (1);
 184     return;
 185   }
 186   if ((strchr(param1,'*') != NULL) || (strchr(param1,'?') != NULL)) {
 187     strcpy (fpath, param1);
 188     do {
 189       p = strrchr (fpath, '\\');
 190       if (p != NULL) {
 191         *++p = '\0';
 192         strcat (fpath, fd.cFileName);
 193       }
 194       else strcpy (fpath, fd.cFileName);
 195       if (!(fd.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)) {
 196         if (!DeleteFile (fpath)) WCMD_print_error ();
 197       }
 198     } while (FindNextFile(hff, &fd) != 0);
 199     FindClose (hff);
 200   }
 201   else {
 202     if (!DeleteFile (param1)) WCMD_print_error ();
 203     FindClose (hff);
 204   }
 205 }
 206
 207 /****************************************************************************
 208  * WCMD_echo
 209  *
 210  * Echo input to the screen (or not). We don't try to emulate the bugs
 211  * in DOS (try typing "ECHO ON AGAIN" for an example).
 212  */
 213
 214 void WCMD_echo (const char *command) {
 215
 216 static const char eon[] = "Echo is ON\n", eoff[] = "Echo is OFF\n";
 217 int count;
 218
 219   if ((command[0] == '.') && (command[1] == 0)) {
 220     WCMD_output (newline);
 221     return;
 222   }
 223   if (command[0]==' ')
 224     command++;
 225   count = strlen(command);
 226   if (count == 0) {
 227     if (echo_mode) WCMD_output (eon);
 228     else WCMD_output (eoff);
 229     return;
 230   }
 231   if (lstrcmpi(command, "ON") == 0) {
 232     echo_mode = 1;
 233     return;
 234   }
 235   if (lstrcmpi(command, "OFF") == 0) {
 236     echo_mode = 0;
 237     return;
 238   }
 239   WCMD_output_asis (command);
 240   WCMD_output (newline);
 241
 242 }
 243
 244 /**************************************************************************
 245  * WCMD_for
 246  *
 247  * Batch file loop processing.
 248  * FIXME: We don't exhaustively check syntax. Any command which works in MessDOS
 249  * will probably work here, but the reverse is not necessarily the case...
 250  */
 251
 252 void WCMD_for (char *p) {
 253
 254 WIN32_FIND_DATA fd;
 255 HANDLE hff;
 256 char *cmd, *item;
 257 char set[MAX_PATH], param[MAX_PATH];
 258 int i;
 259
 260   if (lstrcmpi (WCMD_parameter (p, 1, NULL), "in")
 261         || lstrcmpi (WCMD_parameter (p, 3, NULL), "do")
 262         || (param1[0] != '%')) {
 263     WCMD_output ("Syntax error\n");
 264     return;
 265   }
 266   lstrcpyn (set, WCMD_parameter (p, 2, NULL), sizeof(set));
 267   WCMD_parameter (p, 4, &cmd);
 268   lstrcpy (param, param1);
 269
 270 /*
 271  *      If the parameter within the set has a wildcard then search for matching files
 272  *      otherwise do a literal substitution.
 273  */
 274
 275   i = 0;
 276   while (*(item = WCMD_parameter (set, i, NULL))) {
 277     if (strpbrk (item, "*?")) {
 278       hff = FindFirstFile (item, &fd);
 279       if (hff == INVALID_HANDLE_VALUE) {
 280         return;
 281       }
 282       do {
 283         WCMD_execute (cmd, param, fd.cFileName);
 284       } while (FindNextFile(hff, &fd) != 0);
 285       FindClose (hff);
 286 }
 287     else {
 288       WCMD_execute (cmd, param, item);
 289     }
 290     i++;
 291   }
 292 }
 293
 294 /*****************************************************************************
 295  * WCMD_Execute
 296  *
 297  *      Execute a command after substituting variable text for the supplied parameter
 298  */
 299
 300 void WCMD_execute (char *orig_cmd, char *param, char *subst) {
 301
 302 char *new_cmd, *p, *s, *dup;
 303 int size;
 304
 305   size = lstrlen (orig_cmd);
 306   new_cmd = (char *) LocalAlloc (LMEM_FIXED | LMEM_ZEROINIT, size);
 307   dup = s = strdup (orig_cmd);
 308
 309   while ((p = strstr (s, param))) {
 310     *p = '\0';
 311     size += lstrlen (subst);
 312     new_cmd = (char *) LocalReAlloc ((HANDLE)new_cmd, size, 0);
 313     strcat (new_cmd, s);
 314     strcat (new_cmd, subst);
 315     s = p + lstrlen (param);
 316   }
 317   strcat (new_cmd, s);
 318   WCMD_process_command (new_cmd);
 319   free (dup);
 320   LocalFree ((HANDLE)new_cmd);
 321 }
 322
 323
 324 /**************************************************************************
 325  * WCMD_give_help
 326  *
 327  *      Simple on-line help. Help text is stored in the resource file.
 328  */
 329
 330 void WCMD_give_help (char *command) {
 331
 332 int i;
 333 char buffer[2048];
 334
 335   command = WCMD_strtrim_leading_spaces(command);
 336   if (lstrlen(command) == 0) {
 337     LoadString (hinst, 1000, buffer, sizeof(buffer));
 338     WCMD_output_asis (buffer);
 339   }
 340   else {
 341     for (i=0; i<=WCMD_EXIT; i++) {
 342       if (CompareString (LOCALE_USER_DEFAULT, NORM_IGNORECASE | SORT_STRINGSORT,
 343           param1, -1, inbuilt[i], -1) == 2) {
 344         LoadString (hinst, i, buffer, sizeof(buffer));
 345         WCMD_output_asis (buffer);
 346         return;
 347       }
 348     }
 349     WCMD_output ("No help available for %s\n", param1);
 350   }
 351   return;
 352 }
 353
 354 /****************************************************************************
 355  * WCMD_go_to
 356  *
 357  * Batch file jump instruction. Not the most efficient algorithm ;-)
 358  * Prints error message if the specified label cannot be found - the file pointer is
 359  * then at EOF, effectively stopping the batch file.
 360  * FIXME: DOS is supposed to allow labels with spaces - we don't.
 361  */
 362
 363 void WCMD_goto (void) {
 364
 365 char string[MAX_PATH];
 366
 367   if (context != NULL) {
 368     SetFilePointer (context -> h, 0, NULL, FILE_BEGIN);
 369     while (WCMD_fgets (string, sizeof(string), context -> h)) {
 370       if ((string[0] == ':') && (strcmp (&string[1], param1) == 0)) return;
 371     }
 372     WCMD_output ("Target to GOTO not found\n");
 373   }
 374   return;
 375 }
 376
 377
 378 /****************************************************************************
 379  * WCMD_if
 380  *
 381  * Batch file conditional.
 382  * FIXME: Much more syntax checking needed!
 383  */
 384
 385 void WCMD_if (char *p) {
 386
 387 int negate = 0, test = 0;
 388 char condition[MAX_PATH], *command, *s;
 389
 390   if (!lstrcmpi (param1, "not")) {
 391     negate = 1;
 392     lstrcpy (condition, param2);
 393 }
 394   else {
 395     lstrcpy (condition, param1);
 396   }
 397   if (!lstrcmpi (condition, "errorlevel")) {
 398     if (errorlevel >= atoi(WCMD_parameter (p, 1+negate, NULL))) test = 1;
 399     return;
 400     WCMD_parameter (p, 2+negate, &command);
 401   }
 402   else if (!lstrcmpi (condition, "exist")) {
 403     if (GetFileAttributesA(WCMD_parameter (p, 1+negate, NULL)) != INVALID_FILE_ATTRIBUTES) {
 404         test = 1;
 405     }
 406     WCMD_parameter (p, 2+negate, &command);
 407   }
 408   else if ((s = strstr (p, "=="))) {
 409     s += 2;
 410     if (!lstrcmpi (condition, WCMD_parameter (s, 0, NULL))) test = 1;
 411     WCMD_parameter (s, 1, &command);
 412   }
 413   else {
 414     WCMD_output ("Syntax error\n");
 415     return;
 416   }
 417   if (test != negate) {
 418     command = strdup (command);
 419     WCMD_process_command (command);
 420     free (command);
 421   }
 422 }
 423
 424 /****************************************************************************
 425  * WCMD_move
 426  *
 427  * Move a file, directory tree or wildcarded set of files.
 428  * FIXME: Needs input and output files to be fully specified.
 429  */
 430
 431 void WCMD_move (void) {
 432
 433 int status;
 434 char outpath[MAX_PATH], inpath[MAX_PATH], *infile;
 435 WIN32_FIND_DATA fd;
 436 HANDLE hff;
 437
 438   if ((strchr(param1,'*') != NULL) || (strchr(param1,'%') != NULL)) {
 439     WCMD_output ("Wildcards not yet supported\n");
 440     return;
 441   }
 442
 443   /* If no destination supplied, assume current directory */
 444   if (param2[0] == 0x00) {
 445       strcpy(param2, ".");
 446   }
 447
 448   /* If 2nd parm is directory, then use original filename */
 449   GetFullPathName (param2, sizeof(outpath), outpath, NULL);
 450   hff = FindFirstFile (outpath, &fd);
 451   if (hff != INVALID_HANDLE_VALUE) {
 452     if (fd.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) {
 453       GetFullPathName (param1, sizeof(inpath), inpath, &infile);
 454       strcat (outpath, "\\");
 455       strcat (outpath, infile);
 456     }
 457     FindClose (hff);
 458   }
 459
 460   status = MoveFile (param1, outpath);
 461   if (!status) WCMD_print_error ();
 462 }
 463
 464 /****************************************************************************
 465  * WCMD_pause
 466  *
 467  * Wait for keyboard input.
 468  */
 469
 470 void WCMD_pause (void) {
 471
 472 DWORD count;
 473 char string[32];
 474
 475   WCMD_output (anykey);
 476   ReadFile (GetStdHandle(STD_INPUT_HANDLE), string, sizeof(string), &count, NULL);
 477 }
 478
 479 /****************************************************************************
 480  * WCMD_remove_dir
 481  *
 482  * Delete a directory.
 483  */
 484
 485 void WCMD_remove_dir (void) {
 486
 487   if (!RemoveDirectory (param1)) WCMD_print_error ();
 488 }
 489
 490 /****************************************************************************
 491  * WCMD_rename
 492  *
 493  * Rename a file.
 494  * FIXME: Needs input and output files to be fully specified.
 495  */
 496
 497 void WCMD_rename (void) {
 498
 499 int status;
 500
 501   if ((strchr(param1,'*') != NULL) || (strchr(param1,'%') != NULL)) {
 502     WCMD_output ("Wildcards not yet supported\n");
 503     return;
 504   }
 505   status = MoveFile (param1, param2);
 506   if (!status) WCMD_print_error ();
 507 }
 508
 509 /*****************************************************************************
 510  * WCMD_dupenv
 511  *
 512  * Make a copy of the environment.
 513  */
 514 static WCHAR *WCMD_dupenv( const WCHAR *env )
 515 {
 516   WCHAR *env_copy;
 517   int len;
 518
 519   if( !env )
 520     return NULL;
 521
 522   len = 0;
 523   while ( env[len] )
 524     len += (lstrlenW(&env[len]) + 1);
 525
 526   env_copy = LocalAlloc (LMEM_FIXED, (len+1) * sizeof (WCHAR) );
 527   if (!env_copy)
 528   {
 529     WCMD_output ("out of memory\n");
 530     return env_copy;
 531   }
 532   memcpy (env_copy, env, len*sizeof (WCHAR));
 533   env_copy[len] = 0;
 534
 535   return env_copy;
 536 }
 537
 538 /*****************************************************************************
 539  * WCMD_setlocal
 540  *
 541  *  setlocal pushes the environment onto a stack
 542  *  Save the environment as unicode so we don't screw anything up.
 543  */
 544 void WCMD_setlocal (const char *s) {
 545   WCHAR *env;
 546   struct env_stack *env_copy;
 547
 548   /* DISABLEEXTENSIONS ignored */
 549
 550   env_copy = LocalAlloc (LMEM_FIXED, sizeof (struct env_stack));
 551   if( !env_copy )
 552   {
 553     WCMD_output ("out of memory\n");
 554     return;
 555   }
 556
 557   env = GetEnvironmentStringsW ();
 558
 559   env_copy->strings = WCMD_dupenv (env);
 560   if (env_copy->strings)
 561   {
 562     env_copy->next = saved_environment;
 563     saved_environment = env_copy;
 564   }
 565   else
 566     LocalFree (env_copy);
 567
 568   FreeEnvironmentStringsW (env);
 569 }
 570
 571 /*****************************************************************************
 572  * WCMD_strchrW
 573  */
 574 static inline WCHAR *WCMD_strchrW(WCHAR *str, WCHAR ch)
 575 {
 576    while(*str)
 577    {
 578      if(*str == ch)
 579        return str;
 580      str++;
 581    }
 582    return NULL;
 583 }
 584
 585 /*****************************************************************************
 586  * WCMD_endlocal
 587  *
 588  *  endlocal pops the environment off a stack
 589  */
 590 void WCMD_endlocal (void) {
 591   WCHAR *env, *old, *p;
 592   struct env_stack *temp;
 593   int len, n;
 594
 595   if (!saved_environment)
 596     return;
 597
 598   /* pop the old environment from the stack */
 599   temp = saved_environment;
 600   saved_environment = temp->next;
 601
 602   /* delete the current environment, totally */
 603   env = GetEnvironmentStringsW ();
 604   old = WCMD_dupenv (GetEnvironmentStringsW ());
 605   len = 0;
 606   while (old[len]) {
 607     n = lstrlenW(&old[len]) + 1;
 608     p = WCMD_strchrW(&old[len], '=');
 609     if (p)
 610     {
 611       *p++ = 0;
 612       SetEnvironmentVariableW (&old[len], NULL);
 613     }
 614     len += n;
 615   }
 616   LocalFree (old);
 617   FreeEnvironmentStringsW (env);
 618
 619   /* restore old environment */
 620   env = temp->strings;
 621   len = 0;
 622   while (env[len]) {
 623     n = lstrlenW(&env[len]) + 1;
 624     p = WCMD_strchrW(&env[len], '=');
 625     if (p)
 626     {
 627       *p++ = 0;
 628       SetEnvironmentVariableW (&env[len], p);
 629     }
 630     len += n;
 631   }
 632   LocalFree (env);
 633   LocalFree (temp);
 634 }
 635
 636 /*****************************************************************************
 637  * WCMD_setshow_attrib
 638  *
 639  * Display and optionally sets DOS attributes on a file or directory
 640  *
 641  * FIXME: Wine currently uses the Unix stat() function to get file attributes.
 642  * As a result only the Readonly flag is correctly reported, the Archive bit
 643  * is always set and the rest are not implemented. We do the Right Thing anyway.
 644  *
 645  * FIXME: No SET functionality.
 646  *
 647  */
 648
 649 void WCMD_setshow_attrib (void) {
 650
 651 DWORD count;
 652 HANDLE hff;
 653 WIN32_FIND_DATA fd;
 654 char flags[9] = {"        "};
 655
 656   if (param1[0] == '-') {
 657     WCMD_output (nyi);
 658     return;
 659   }
 660
 661   if (lstrlen(param1) == 0) {
 662     GetCurrentDirectory (sizeof(param1), param1);
 663     strcat (param1, "\\*");
 664   }
 665
 666   hff = FindFirstFile (param1, &fd);
 667   if (hff == INVALID_HANDLE_VALUE) {
 668     WCMD_output ("%s: File Not Found\n",param1);
 669   }
 670   else {
 671     do {
 672       if (!(fd.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)) {
 673         if (fd.dwFileAttributes & FILE_ATTRIBUTE_HIDDEN) {
 674           flags[0] = 'H';
 675         }
 676         if (fd.dwFileAttributes & FILE_ATTRIBUTE_SYSTEM) {
 677           flags[1] = 'S';
 678         }
 679         if (fd.dwFileAttributes & FILE_ATTRIBUTE_ARCHIVE) {
 680           flags[2] = 'A';
 681         }
 682         if (fd.dwFileAttributes & FILE_ATTRIBUTE_READONLY) {
 683           flags[3] = 'R';
 684         }
 685         if (fd.dwFileAttributes & FILE_ATTRIBUTE_TEMPORARY) {
 686           flags[4] = 'T';
 687         }
 688         if (fd.dwFileAttributes & FILE_ATTRIBUTE_COMPRESSED) {
 689           flags[5] = 'C';
 690         }
 691         WCMD_output ("%s   %s\n", flags, fd.cFileName);
 692         for (count=0; count < 8; count++) flags[count] = ' ';
 693       }
 694     } while (FindNextFile(hff, &fd) != 0);
 695   }
 696   FindClose (hff);
 697 }
 698
 699 /*****************************************************************************
 700  * WCMD_setshow_default
 701  *
 702  *      Set/Show the current default directory
 703  */
 704
 705 void WCMD_setshow_default (void) {
 706
 707 BOOL status;
 708 char string[1024];
 709
 710   if (strlen(param1) == 0) {
 711     GetCurrentDirectory (sizeof(string), string);
 712     strcat (string, "\n");
 713     WCMD_output (string);
 714   }
 715   else {
 716     status = SetCurrentDirectory (param1);
 717     if (!status) {
 718       WCMD_print_error ();
 719       return;
 720     }
 721    }
 722   return;
 723 }
 724
 725 /****************************************************************************
 726  * WCMD_setshow_date
 727  *
 728  * Set/Show the system date
 729  * FIXME: Can't change date yet
 730  */
 731
 732 void WCMD_setshow_date (void) {
 733
 734 char curdate[64], buffer[64];
 735 DWORD count;
 736
 737   if (lstrlen(param1) == 0) {
 738     if (GetDateFormat (LOCALE_USER_DEFAULT, 0, NULL, NULL,
 739                 curdate, sizeof(curdate))) {
 740       WCMD_output ("Current Date is %s\nEnter new date: ", curdate);
 741       ReadFile (GetStdHandle(STD_INPUT_HANDLE), buffer, sizeof(buffer), &count, NULL);
 742       if (count > 2) {
 743         WCMD_output (nyi);
 744       }
 745     }
 746     else WCMD_print_error ();
 747   }
 748   else {
 749     WCMD_output (nyi);
 750   }
 751 }
 752
 753 /****************************************************************************
 754  * WCMD_compare
 755  */
 756 static int WCMD_compare( const void *a, const void *b )
 757 {
 758     int r;
 759     const char * const *str_a = a, * const *str_b = b;
 760     r = CompareString( LOCALE_USER_DEFAULT, NORM_IGNORECASE | SORT_STRINGSORT,
 761           *str_a, -1, *str_b, -1 );
 762     if( r == CSTR_LESS_THAN ) return -1;
 763     if( r == CSTR_GREATER_THAN ) return 1;
 764     return 0;
 765 }
 766
 767 /****************************************************************************
 768  * WCMD_setshow_sortenv
 769  *
 770  * sort variables into order for display
 771  */
 772 static void WCMD_setshow_sortenv(const char *s)
 773 {
 774   UINT count=0, len=0, i;
 775   const char **str;
 776
 777   /* count the number of strings, and the total length */
 778   while ( s[len] ) {
 779     len += (lstrlen(&s[len]) + 1);
 780     count++;
 781   }
 782
 783   /* add the strings to an array */
 784   str = LocalAlloc (LMEM_FIXED | LMEM_ZEROINIT, count * sizeof (char*) );
 785   if( !str )
 786     return;
 787   str[0] = s;
 788   for( i=1; i<count; i++ )
 789     str[i] = str[i-1] + lstrlen(str[i-1]) + 1;
 790
 791   /* sort the array */
 792   qsort( str, count, sizeof (char*), WCMD_compare );
 793
 794   /* print it */
 795   for( i=0; i<count; i++ )
 796     WCMD_output("%s\n", str[i] );
 797
 798   LocalFree( str );
 799 }
 800
 801 /****************************************************************************
 802  * WCMD_setshow_env
 803  *
 804  * Set/Show the environment variables
 805  */
 806
 807 void WCMD_setshow_env (char *s) {
 808
 809 LPVOID env;
 810 char *p;
 811 int status;
 812 char buffer[1048];
 813
 814   if (strlen(param1) == 0) {
 815     env = GetEnvironmentStrings ();
 816     WCMD_setshow_sortenv( env );
 817   }
 818   else {
 819     p = strchr (s, '=');
 820     if (p == NULL) {
 821
 822       /* FIXME: Emulate Win98 for now, ie "SET C" looks ONLY for an
 823          environment variable C, whereas on NT it shows ALL variables
 824          starting with C.
 825        */
 826       status = GetEnvironmentVariable(s, buffer, sizeof(buffer));
 827       if (status) {
 828         WCMD_output("%s=%s\n", s, buffer);
 829       } else {
 830         WCMD_output ("Environment variable %s not defined\n", s);
 831       }
 832       return;
 833     }
 834     *p++ = '\0';
 835
 836     if (strlen(p) == 0) p = NULL;
 837     status = SetEnvironmentVariable (s, p);
 838     if ((!status) & (GetLastError() != ERROR_ENVVAR_NOT_FOUND)) WCMD_print_error();
 839   }
 840   /* WCMD_output (newline);   @JED*/
 841 }
 842
 843 /****************************************************************************
 844  * WCMD_setshow_path
 845  *
 846  * Set/Show the path environment variable
 847  */
 848
 849 void WCMD_setshow_path (char *command) {
 850
 851 char string[1024];
 852 DWORD status;
 853
 854   if (strlen(param1) == 0) {
 855     status = GetEnvironmentVariable ("PATH", string, sizeof(string));
 856     if (status != 0) {
 857       WCMD_output ("PATH=%s\n", string);
 858     }
 859     else {
 860       WCMD_output ("PATH not found\n");
 861     }
 862   }
 863   else {
 864     status = SetEnvironmentVariable ("PATH", command);
 865     if (!status) WCMD_print_error();
 866   }
 867 }
 868
 869 /****************************************************************************
 870  * WCMD_setshow_prompt
 871  *
 872  * Set or show the command prompt.
 873  */
 874
 875 void WCMD_setshow_prompt (void) {
 876
 877 char *s;
 878
 879   if (strlen(param1) == 0) {
 880     SetEnvironmentVariable ("PROMPT", NULL);
 881   }
 882   else {
 883     s = param1;
 884     while ((*s == '=') || (*s == ' ')) s++;
 885     if (strlen(s) == 0) {
 886       SetEnvironmentVariable ("PROMPT", NULL);
 887     }
 888     else SetEnvironmentVariable ("PROMPT", s);
 889   }
 890 }
 891
 892 /****************************************************************************
 893  * WCMD_setshow_time
 894  *
 895  * Set/Show the system time
 896  * FIXME: Can't change time yet
 897  */
 898
 899 void WCMD_setshow_time (void) {
 900
 901 char curtime[64], buffer[64];
 902 DWORD count;
 903 SYSTEMTIME st;
 904
 905   if (strlen(param1) == 0) {
 906     GetLocalTime(&st);
 907     if (GetTimeFormat (LOCALE_USER_DEFAULT, 0, &st, NULL,
 908                 curtime, sizeof(curtime))) {
 909       WCMD_output ("Current Time is %s\nEnter new time: ", curtime);
 910       ReadFile (GetStdHandle(STD_INPUT_HANDLE), buffer, sizeof(buffer), &count, NULL);
 911       if (count > 2) {
 912         WCMD_output (nyi);
 913       }
 914     }
 915     else WCMD_print_error ();
 916   }
 917   else {
 918     WCMD_output (nyi);
 919   }
 920 }
 921
 922 /****************************************************************************
 923  * WCMD_shift
 924  *
 925  * Shift batch parameters.
 926  */
 927
 928 void WCMD_shift (void) {
 929
 930   if (context != NULL) context -> shift_count++;
 931
 932 }
 933
 934 /****************************************************************************
 935  * WCMD_title
 936  *
 937  * Set the console title
 938  */
 939 void WCMD_title (char *command) {
 940   SetConsoleTitle(command);
 941 }
 942
 943 /****************************************************************************
 944  * WCMD_type
 945  *
 946  * Copy a file to standard output.
 947  */
 948
 949 void WCMD_type (void) {
 950
 951 HANDLE h;
 952 char buffer[512];
 953 DWORD count;
 954
 955   h = CreateFile (param1, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING,
 956                 FILE_ATTRIBUTE_NORMAL, NULL);
 957   if (h == INVALID_HANDLE_VALUE) {
 958     WCMD_print_error ();
 959     return;
 960   }
 961   while (ReadFile (h, buffer, sizeof(buffer), &count, NULL)) {
 962     if (count == 0) break;      /* ReadFile reports success on EOF! */
 963     buffer[count] = 0;
 964     WCMD_output_asis (buffer);
 965   }
 966   CloseHandle (h);
 967 }
 968
 969 /****************************************************************************
 970  * WCMD_verify
 971  *
 972  * Display verify flag.
 973  * FIXME: We don't actually do anything with the verify flag other than toggle
 974  * it...
 975  */
 976
 977 void WCMD_verify (char *command) {
 978
 979 static const char von[] = "Verify is ON\n", voff[] = "Verify is OFF\n";
 980 int count;
 981
 982   count = strlen(command);
 983   if (count == 0) {
 984     if (verify_mode) WCMD_output (von);
 985     else WCMD_output (voff);
 986     return;
 987   }
 988   if (lstrcmpi(command, "ON") == 0) {
 989     verify_mode = 1;
 990     return;
 991   }
 992   else if (lstrcmpi(command, "OFF") == 0) {
 993     verify_mode = 0;
 994     return;
 995   }
 996   else WCMD_output ("Verify must be ON or OFF\n");
 997 }
 998
 999 /****************************************************************************
1000  * WCMD_version
1001  *
1002  * Display version info.
1003  */
1004
1005 void WCMD_version (void) {
1006
1007   WCMD_output (version_string);
1008
1009 }
1010
1011 /****************************************************************************
1012  * WCMD_volume
1013  *
1014  * Display volume info and/or set volume label. Returns 0 if error.
1015  */
1016
1017 int WCMD_volume (int mode, char *path) {
1018
1019 DWORD count, serial;
1020 char string[MAX_PATH], label[MAX_PATH], curdir[MAX_PATH];
1021 BOOL status;
1022
1023   if (lstrlen(path) == 0) {
1024     status = GetCurrentDirectory (sizeof(curdir), curdir);
1025     if (!status) {
1026       WCMD_print_error ();
1027       return 0;
1028     }
1029     status = GetVolumeInformation (NULL, label, sizeof(label), &serial, NULL,
1030         NULL, NULL, 0);
1031   }
1032   else {
1033     if ((path[1] != ':') || (lstrlen(path) != 2)) {
1034       WCMD_output_asis("Syntax Error\n\n");
1035       return 0;
1036     }
1037     wsprintf (curdir, "%s\\", path);
1038     status = GetVolumeInformation (curdir, label, sizeof(label), &serial, NULL,
1039         NULL, NULL, 0);
1040   }
1041   if (!status) {
1042     WCMD_print_error ();
1043     return 0;
1044   }
1045   WCMD_output ("Volume in drive %c is %s\nVolume Serial Number is %04x-%04x\n\n",
1046         curdir[0], label, HIWORD(serial), LOWORD(serial));
1047   if (mode) {
1048     WCMD_output ("Volume label (11 characters, ENTER for none)?");
1049     ReadFile (GetStdHandle(STD_INPUT_HANDLE), string, sizeof(string), &count, NULL);
1050     if (count > 1) {
1051       string[count-1] = '\0';           /* ReadFile output is not null-terminated! */
1052       if (string[count-2] == '\r') string[count-2] = '\0'; /* Under Windoze we get CRLF! */
1053     }
1054     if (lstrlen(path) != 0) {
1055       if (!SetVolumeLabel (curdir, string)) WCMD_print_error ();
1056     }
1057     else {
1058       if (!SetVolumeLabel (NULL, string)) WCMD_print_error ();
1059     }
1060   }
1061   return 1;
1062 }