reactos/lib/setupapi/setupx_main.c

   1 /*
   2  *      SETUPX library
   3  *
   4  *      Copyright 1998,2000  Andreas Mohr
   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  * FIXME: Rather non-functional functions for now.
  21  *
  22  * See:
  23  * http://www.geocities.com/SiliconValley/Network/5317/drivers.html
  24  * http://willemer.de/informatik/windows/inf_info.htm (German)
  25  * http://www.microsoft.com/ddk/ddkdocs/win98ddk/devinst_12uw.htm
  26  * DDK: setupx.h
  27  * http://mmatrix.tripod.com/customsystemfolder/infsysntaxfull.html
  28  * http://www.rdrop.com/~cary/html/inf_faq.html
  29  * http://support.microsoft.com/support/kb/articles/q194/6/40.asp
  30  *
  31  * Stuff tested with:
  32  * - rs405deu.exe (German Acroread 4.05 setup)
  33  * - ie5setup.exe
  34  * - Netmeeting
  35  *
  36  * FIXME:
  37  * - string handling is... weird ;) (buflen etc.)
  38  * - memory leaks ?
  39  * - separate that mess (but probably only when it's done completely)
  40  *
  41  * SETUPX consists of several parts with the following acronyms/prefixes:
  42  * Di   device installer (devinst.c ?)
  43  * Gen  generic installer (geninst.c ?)
  44  * Ip   .INF parsing (infparse.c)
  45  * LDD  logical device descriptor (ldd.c ?)
  46  * LDID logical device ID
  47  * SU   setup (setup.c ?)
  48  * Tp   text processing (textproc.c ?)
  49  * Vcp  virtual copy module (vcp.c ?)
  50  * ...
  51  *
  52  * The SETUPX DLL is NOT thread-safe. That's why many installers urge you to
  53  * "close all open applications".
  54  * All in all the design of it seems to be a bit weak.
  55  * Not sure whether my implementation of it is better, though ;-)
  56  */
  57
  58 #include <stdlib.h>
  59 #include <stdarg.h>
  60 #include <stdio.h>
  61 #include <string.h>
  62 #include "windef.h"
  63 #include "winbase.h"
  64 #include "winreg.h"
  65 #include "winerror.h"
  66 #include "wine/winuser16.h"
  67 #include "wownt32.h"
  68 #include "wingdi.h"
  69 #include "winuser.h"
  70 #include "winnls.h"
  71 #include "setupapi.h"
  72 #include "setupx16.h"
  73 #include "setupapi_private.h"
  74 #include "winerror.h"
  75 #include "wine/debug.h"
  76
  77 WINE_DEFAULT_DEBUG_CHANNEL(setupapi);
  78
  79 /***********************************************************************
  80  *              SURegOpenKey (SETUPX.47)
  81  */
  82 DWORD WINAPI SURegOpenKey( HKEY hkey, LPCSTR lpszSubKey, PHKEY retkey )
  83 {
  84     FIXME("(%p,%s,%p), semi-stub.\n",hkey,debugstr_a(lpszSubKey),retkey);
  85     return RegOpenKeyA( hkey, lpszSubKey, retkey );
  86 }
  87
  88 /***********************************************************************
  89  *              SURegQueryValueEx (SETUPX.50)
  90  */
  91 DWORD WINAPI SURegQueryValueEx( HKEY hkey, LPSTR lpszValueName,
  92                                 LPDWORD lpdwReserved, LPDWORD lpdwType,
  93                                 LPBYTE lpbData, LPDWORD lpcbData )
  94 {
  95     FIXME("(%p,%s,%p,%p,%p,%ld), semi-stub.\n",hkey,debugstr_a(lpszValueName),
  96           lpdwReserved,lpdwType,lpbData,lpcbData?*lpcbData:0);
  97     return RegQueryValueExA( hkey, lpszValueName, lpdwReserved, lpdwType,
  98                                lpbData, lpcbData );
  99 }
 100
 101 /*
 102  * Returns pointer to a string list with the first entry being number
 103  * of strings.
 104  *
 105  * Hmm. Should this be InitSubstrData(), GetFirstSubstr() and GetNextSubstr()
 106  * instead?
 107  */
 108 static LPSTR *SETUPX_GetSubStrings(LPSTR start, char delimiter)
 109 {
 110     LPSTR p, q;
 111     LPSTR *res = NULL;
 112     DWORD count = 0;
 113     int len;
 114
 115     p = start;
 116
 117     while (1)
 118     {
 119         /* find beginning of real substring */
 120         while ( (*p == ' ') || (*p == '\t') || (*p == '"') ) p++;
 121
 122         /* find end of real substring */
 123         q = p;
 124         while ( (*q)
 125              && (*q != ' ') && (*q != '\t') && (*q != '"')
 126              && (*q != ';') && (*q != delimiter) ) q++;
 127         if (q == p)
 128             break;
 129         len = (int)q - (int)p;
 130
 131         /* alloc entry for new substring in steps of 32 units and copy over */
 132         if (count % 32 == 0)
 133         { /* 1 for count field + current count + 32 */
 134             if (res)
 135                 res = HeapReAlloc(GetProcessHeap(), 0, res, (1+count+32)*sizeof(LPSTR));
 136             else
 137                 res = HeapAlloc(GetProcessHeap(), 0, (1+count+32)*sizeof(LPSTR));
 138         }
 139         *(res+1+count) = HeapAlloc(GetProcessHeap(), 0, len+1);
 140         strncpy(*(res+1+count), p, len);
 141         (*(res+1+count))[len] = '\0';
 142         count++;
 143
 144         /* we are still within last substring (before delimiter),
 145          * so get out of it */
 146         while ((*q) && (*q != ';') && (*q != delimiter)) q++;
 147         if ((!*q) || (*q == ';'))
 148             break;
 149         p = q+1;
 150     }
 151
 152     /* put number of entries at beginning of list */
 153     *(DWORD *)res = count;
 154     return res;
 155 }
 156
 157 static void SETUPX_FreeSubStrings(LPSTR *substr)
 158 {
 159     DWORD count = *(DWORD *)substr;
 160     LPSTR *pStrings = substr+1;
 161     DWORD n;
 162
 163     for (n=0; n < count; n++)
 164         HeapFree(GetProcessHeap(), 0, *pStrings++);
 165
 166     HeapFree(GetProcessHeap(), 0, substr);
 167 }
 168
 169
 170 /***********************************************************************
 171  *              InstallHinfSection (SETUPX.527)
 172  *
 173  * hwnd = parent window
 174  * hinst = instance of SETUPX.DLL
 175  * lpszCmdLine = e.g. "DefaultInstall 132 C:\MYINSTALL\MYDEV.INF"
 176  * Here "DefaultInstall" is the .inf file section to be installed (optional).
 177  * The 132 value is made of the HOW_xxx flags and sometimes 128 (-> setupx16.h).
 178  *
 179  * nCmdShow = nCmdShow of CreateProcess
 180  */
 181 RETERR16 WINAPI InstallHinfSection16( HWND16 hwnd, HINSTANCE16 hinst, LPCSTR lpszCmdLine, INT16 nCmdShow)
 182 {
 183     LPSTR *pSub;
 184     DWORD count;
 185     HINF16 hInf = 0;
 186     RETERR16 res = OK, tmp;
 187     WORD wFlags;
 188     BOOL reboot = FALSE;
 189
 190     TRACE("(%04x, %04x, %s, %d);\n", hwnd, hinst, lpszCmdLine, nCmdShow);
 191
 192     pSub = SETUPX_GetSubStrings((LPSTR)lpszCmdLine, ' ');
 193
 194     count = *(DWORD *)pSub;
 195     if (count < 2) /* invalid number of arguments ? */
 196         goto end;
 197     if (IpOpen16(*(pSub+count), &hInf) != OK)
 198     {
 199         res = ERROR_FILE_NOT_FOUND; /* yes, correct */
 200         goto end;
 201     }
 202     if (VcpOpen16(NULL, 0))
 203         goto end;
 204     if (GenInstall16(hInf, *(pSub+count-2), GENINSTALL_DO_ALL) != OK)
 205         goto end;
 206     wFlags = atoi(*(pSub+count-1)) & ~128;
 207     switch (wFlags)
 208     {
 209         case HOW_ALWAYS_SILENT_REBOOT:
 210         case HOW_SILENT_REBOOT:
 211             reboot = TRUE;
 212             break;
 213         case HOW_ALWAYS_PROMPT_REBOOT:
 214         case HOW_PROMPT_REBOOT:
 215             if (MessageBoxA(HWND_32(hwnd), "You must restart Wine before the new settings will take effect.\n\nDo you want to exit Wine now ?", "Systems Settings Change", MB_YESNO|MB_ICONQUESTION) == IDYES)
 216                 reboot = TRUE;
 217             break;
 218         default:
 219             ERR("invalid flags %d !\n", wFlags);
 220             goto end;
 221     }
 222
 223     res = OK;
 224 end:
 225     tmp = VcpClose16(VCPFL_ALL, NULL);
 226     if (tmp != OK)
 227         res = tmp;
 228     tmp = IpClose16(hInf);
 229     if (tmp != OK)
 230         res = tmp;
 231     SETUPX_FreeSubStrings(pSub);
 232     if (reboot)
 233     {
 234         /* FIXME: we should have a means of terminating all wine + wineserver */
 235         MESSAGE("Program or user told me to restart. Exiting Wine...\n");
 236         ExitProcess(1);
 237     }
 238
 239     return res;
 240 }
 241
 242 typedef struct
 243 {
 244     LPCSTR RegValName;
 245     LPCSTR StdString; /* fallback string; sub dir of windows directory */
 246 } LDID_DATA;
 247
 248 static const LDID_DATA LDID_Data[34] =
 249 {
 250     { /* 0 (LDID_NULL) -- not defined */
 251         NULL,
 252         NULL
 253     },
 254     { /* 1 (LDID_SRCPATH) = source of installation. hmm, what to do here ? */
 255         "SourcePath", /* hmm, does SETUPX have to care about updating it ?? */
 256         NULL
 257     },
 258     { /* 2 (LDID_SETUPTEMP) = setup temp dir */
 259         "SetupTempDir",
 260         NULL
 261     },
 262     { /* 3 (LDID_UNINSTALL) = uninstall backup dir */
 263         "UninstallDir",
 264         NULL
 265     },
 266     { /* 4 (LDID_BACKUP) = backup dir */
 267         "BackupDir",
 268         NULL
 269     },
 270     { /* 5 (LDID_SETUPSCRATCH) = setup scratch dir */
 271         "SetupScratchDir",
 272         NULL
 273     },
 274     { /* 6 -- not defined */
 275         NULL,
 276         NULL
 277     },
 278     { /* 7 -- not defined */
 279         NULL,
 280         NULL
 281     },
 282     { /* 8 -- not defined */
 283         NULL,
 284         NULL
 285     },
 286     { /* 9 -- not defined */
 287         NULL,
 288         NULL
 289     },
 290     { /* 10 (LDID_WIN) = windows dir */
 291         "WinDir",
 292         ""
 293     },
 294     { /* 11 (LDID_SYS) = system dir */
 295         "SysDir",
 296         NULL /* call GetSystemDirectory() instead */
 297     },
 298     { /* 12 (LDID_IOS) = IOSubSys dir */
 299         NULL, /* FIXME: registry string ? */
 300         "SYSTEM\\IOSUBSYS"
 301     },
 302     { /* 13 (LDID_CMD) = COMMAND dir */
 303         NULL, /* FIXME: registry string ? */
 304         "COMMAND"
 305     },
 306     { /* 14 (LDID_CPL) = control panel dir */
 307         NULL,
 308         ""
 309     },
 310     { /* 15 (LDID_PRINT) = windows printer dir */
 311         NULL,
 312         "SYSTEM" /* correct ?? */
 313     },
 314     { /* 16 (LDID_MAIL) = destination mail dir */
 315         NULL,
 316         ""
 317     },
 318     { /* 17 (LDID_INF) = INF dir */
 319         "SetupScratchDir", /* correct ? */
 320         "INF"
 321     },
 322     { /* 18 (LDID_HELP) = HELP dir */
 323         NULL, /* ??? */
 324         "HELP"
 325     },
 326     { /* 19 (LDID_WINADMIN) = Admin dir */
 327         "WinAdminDir",
 328         ""
 329     },
 330     { /* 20 (LDID_FONTS) = Fonts dir */
 331         NULL, /* ??? */
 332         "FONTS"
 333     },
 334     { /* 21 (LDID_VIEWERS) = Viewers */
 335         NULL, /* ??? */
 336         "SYSTEM\\VIEWERS"
 337     },
 338     { /* 22 (LDID_VMM32) = VMM32 dir */
 339         NULL, /* ??? */
 340         "SYSTEM\\VMM32"
 341     },
 342     { /* 23 (LDID_COLOR) = ICM dir */
 343         "ICMPath",
 344         "SYSTEM\\COLOR"
 345     },
 346     { /* 24 (LDID_APPS) = root of boot drive ? */
 347         "AppsDir",
 348         "C:\\"
 349     },
 350     { /* 25 (LDID_SHARED) = shared dir */
 351         "SharedDir",
 352         ""
 353     },
 354     { /* 26 (LDID_WINBOOT) = Windows boot dir */
 355         "WinBootDir",
 356         ""
 357     },
 358     { /* 27 (LDID_MACHINE) = machine specific files */
 359         "MachineDir",
 360         NULL
 361     },
 362     { /* 28 (LDID_HOST_WINBOOT) = Host Windows boot dir */
 363         "HostWinBootDir",
 364         NULL
 365     },
 366     { /* 29 -- not defined */
 367         NULL,
 368         NULL
 369     },
 370     { /* 30 (LDID_BOOT) = Root of boot drive */
 371         "BootDir",
 372         NULL
 373     },
 374     { /* 31 (LDID_BOOT_HOST) = Root of boot drive host */
 375         "BootHost",
 376         NULL
 377     },
 378     { /* 32 (LDID_OLD_WINBOOT) = subdir of root */
 379         "OldWinBootDir",
 380         NULL
 381     },
 382     { /* 33 (LDID_OLD_WIN) = old win dir */
 383         "OldWinDir",
 384         NULL
 385     }
 386     /* the rest (34-38) isn't too interesting, so I'll forget about it */
 387 };
 388
 389 /*
 390  * LDD  == Logical Device Descriptor
 391  * LDID == Logical Device ID
 392  *
 393  * The whole LDD/LDID business might go into a separate file named
 394  * ldd.c.
 395  * At the moment I don't know what the hell these functions are really doing.
 396  * That's why I added reporting stubs.
 397  * The only thing I do know is that I need them for the LDD/LDID infrastructure.
 398  * That's why I implemented them in a way that's suitable for my purpose.
 399  */
 400 static LDD_LIST *pFirstLDD = NULL;
 401
 402 static BOOL std_LDDs_done = FALSE;
 403
 404 void SETUPX_CreateStandardLDDs(void)
 405 {
 406     HKEY hKey = 0;
 407     WORD n;
 408     DWORD type, len;
 409     LOGDISKDESC_S ldd;
 410     char buffer[MAX_PATH];
 411
 412     /* has to be here, otherwise loop */
 413     std_LDDs_done = TRUE;
 414
 415     RegOpenKeyA(HKEY_LOCAL_MACHINE, "SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Setup", &hKey);
 416
 417     for (n=0; n < sizeof(LDID_Data)/sizeof(LDID_DATA); n++)
 418     {
 419         buffer[0] = '\0';
 420
 421         len = MAX_PATH;
 422         if ( (hKey) && (LDID_Data[n].RegValName)
 423         &&   (RegQueryValueExA(hKey, LDID_Data[n].RegValName,
 424                 NULL, &type, buffer, &len) == ERROR_SUCCESS)
 425         &&   (type == REG_SZ) )
 426         {
 427             TRACE("found value '%s' for LDID %d\n", buffer, n);
 428         }
 429         else
 430         switch(n)
 431         {
 432             case LDID_SRCPATH:
 433                 FIXME("LDID_SRCPATH: what exactly do we have to do here ?\n");
 434                 strcpy(buffer, "X:\\FIXME");
 435                 break;
 436             case LDID_SYS:
 437                 GetSystemDirectoryA(buffer, MAX_PATH);
 438                 break;
 439             case LDID_APPS:
 440             case LDID_MACHINE:
 441             case LDID_HOST_WINBOOT:
 442             case LDID_BOOT:
 443             case LDID_BOOT_HOST:
 444                 strcpy(buffer, "C:\\");
 445                 break;
 446             default:
 447                 if (LDID_Data[n].StdString)
 448                 {
 449                     DWORD len = GetWindowsDirectoryA(buffer, MAX_PATH);
 450                     LPSTR p;
 451                     p = buffer + len;
 452                     *p++ = '\\';
 453                     strcpy(p, LDID_Data[n].StdString);
 454                 }
 455                 break;
 456         }
 457         if (buffer[0])
 458         {
 459             INIT_LDD(ldd, n);
 460             ldd.pszPath = buffer;
 461             TRACE("LDID %d -> '%s'\n", ldd.ldid, ldd.pszPath);
 462             CtlSetLdd16(&ldd);
 463         }
 464     }
 465     if (hKey) RegCloseKey(hKey);
 466 }
 467
 468 /***********************************************************************
 469  * CtlDelLdd            (SETUPX.37)
 470  *
 471  * RETURN
 472  *   ERR_VCP_LDDINVALID if ldid < LDID_ASSIGN_START.
 473  */
 474 RETERR16 SETUPX_DelLdd(LOGDISKID16 ldid)
 475 {
 476     LDD_LIST *pCurr, *pPrev = NULL;
 477
 478     TRACE("(%d)\n", ldid);
 479
 480     if (!std_LDDs_done)
 481         SETUPX_CreateStandardLDDs();
 482
 483     if (ldid < LDID_ASSIGN_START)
 484         return ERR_VCP_LDDINVALID;
 485
 486     pCurr = pFirstLDD;
 487     /* search until we find the appropriate LDD or hit the end */
 488     while ((pCurr != NULL) && (ldid > pCurr->pldd->ldid))
 489     {
 490          pPrev = pCurr;
 491          pCurr = pCurr->next;
 492     }
 493     if ( (pCurr == NULL) /* hit end of list */
 494       || (ldid != pCurr->pldd->ldid) )
 495         return ERR_VCP_LDDFIND; /* correct ? */
 496
 497     /* ok, found our victim: eliminate it */
 498
 499     if (pPrev)
 500         pPrev->next = pCurr->next;
 501
 502     if (pCurr == pFirstLDD)
 503         pFirstLDD = NULL;
 504     HeapFree(GetProcessHeap(), 0, pCurr);
 505
 506     return OK;
 507 }
 508
 509 /***********************************************************************
 510  *              CtlDelLdd (SETUPX.37)
 511  */
 512 RETERR16 WINAPI CtlDelLdd16(LOGDISKID16 ldid)
 513 {
 514     FIXME("(%d); - please report this!\n", ldid);
 515     return SETUPX_DelLdd(ldid);
 516 }
 517
 518 /***********************************************************************
 519  * CtlFindLdd           (SETUPX.35)
 520  *
 521  * doesn't check pldd ptr validity: crash (W98SE)
 522  *
 523  * RETURN
 524  *   ERR_VCP_LDDINVALID if pldd->cbSize != structsize
 525  *   1 in all other cases ??
 526  *
 527  */
 528 RETERR16 WINAPI CtlFindLdd16(LPLOGDISKDESC pldd)
 529 {
 530     LDD_LIST *pCurr, *pPrev = NULL;
 531
 532     TRACE("(%p)\n", pldd);
 533
 534     if (!std_LDDs_done)
 535         SETUPX_CreateStandardLDDs();
 536
 537     if (pldd->cbSize != sizeof(LOGDISKDESC_S))
 538         return ERR_VCP_LDDINVALID;
 539
 540     pCurr = pFirstLDD;
 541     /* search until we find the appropriate LDD or hit the end */
 542     while ((pCurr != NULL) && (pldd->ldid > pCurr->pldd->ldid))
 543     {
 544         pPrev = pCurr;
 545         pCurr = pCurr->next;
 546     }
 547     if ( (pCurr == NULL) /* hit end of list */
 548       || (pldd->ldid != pCurr->pldd->ldid) )
 549         return ERR_VCP_LDDFIND; /* correct ? */
 550
 551     memcpy(pldd, pCurr->pldd, pldd->cbSize);
 552     /* hmm, we probably ought to strcpy() the string ptrs here */
 553
 554     return 1; /* what is this ?? */
 555 }
 556
 557 /***********************************************************************
 558  * CtlSetLdd                    (SETUPX.33)
 559  *
 560  * Set an LDD entry.
 561  *
 562  * RETURN
 563  *   ERR_VCP_LDDINVALID if pldd.cbSize != sizeof(LOGDISKDESC_S)
 564  *
 565  */
 566 RETERR16 WINAPI CtlSetLdd16(LPLOGDISKDESC pldd)
 567 {
 568     LDD_LIST *pCurr, *pPrev = NULL;
 569     LPLOGDISKDESC pCurrLDD;
 570     HANDLE heap;
 571     BOOL is_new = FALSE;
 572
 573     TRACE("(%p)\n", pldd);
 574
 575     if (!std_LDDs_done)
 576         SETUPX_CreateStandardLDDs();
 577
 578     if (pldd->cbSize != sizeof(LOGDISKDESC_S))
 579         return ERR_VCP_LDDINVALID;
 580
 581     heap = GetProcessHeap();
 582     pCurr = pFirstLDD;
 583     /* search until we find the appropriate LDD or hit the end */
 584     while ((pCurr != NULL) && (pldd->ldid > pCurr->pldd->ldid))
 585     {
 586          pPrev = pCurr;
 587          pCurr = pCurr->next;
 588     }
 589     if (!pCurr || pldd->ldid != pCurr->pldd->ldid)
 590     {
 591         is_new = TRUE;
 592         pCurr = HeapAlloc(heap, 0, sizeof(LDD_LIST));
 593         pCurr->pldd = HeapAlloc(heap, 0, sizeof(LOGDISKDESC_S));
 594         pCurr->next = NULL;
 595         pCurrLDD = pCurr->pldd;
 596     }
 597     else
 598     {
 599         pCurrLDD = pCurr->pldd;
 600         if (pCurrLDD->pszPath)          HeapFree(heap, 0, pCurrLDD->pszPath);
 601         if (pCurrLDD->pszVolLabel)      HeapFree(heap, 0, pCurrLDD->pszVolLabel);
 602         if (pCurrLDD->pszDiskName)      HeapFree(heap, 0, pCurrLDD->pszDiskName);
 603     }
 604
 605     memcpy(pCurrLDD, pldd, sizeof(LOGDISKDESC_S));
 606
 607     if (pldd->pszPath)
 608     {
 609         pCurrLDD->pszPath = HeapAlloc( heap, 0, strlen(pldd->pszPath)+1 );
 610         strcpy( pCurrLDD->pszPath, pldd->pszPath );
 611     }
 612     if (pldd->pszVolLabel)
 613     {
 614         pCurrLDD->pszVolLabel = HeapAlloc( heap, 0, strlen(pldd->pszVolLabel)+1 );
 615         strcpy( pCurrLDD->pszVolLabel, pldd->pszVolLabel );
 616     }
 617     if (pldd->pszDiskName)
 618     {
 619         pCurrLDD->pszDiskName = HeapAlloc( heap, 0, strlen(pldd->pszDiskName)+1 );
 620         strcpy( pCurrLDD->pszDiskName, pldd->pszDiskName );
 621     }
 622
 623     if (is_new) /* link into list */
 624     {
 625         if (pPrev)
 626         {
 627             pCurr->next = pPrev->next;
 628             pPrev->next = pCurr;
 629         }
 630         if (!pFirstLDD)
 631             pFirstLDD = pCurr;
 632     }
 633
 634     return OK;
 635 }
 636
 637
 638 /***********************************************************************
 639  * CtlAddLdd            (SETUPX.36)
 640  *
 641  * doesn't check pldd ptr validity: crash (W98SE)
 642  *
 643  */
 644 static LOGDISKID16 ldid_to_add = LDID_ASSIGN_START;
 645 RETERR16 WINAPI CtlAddLdd16(LPLOGDISKDESC pldd)
 646 {
 647     pldd->ldid = ldid_to_add++;
 648     return CtlSetLdd16(pldd);
 649 }
 650
 651 /***********************************************************************
 652  * CtlGetLdd            (SETUPX.34)
 653  *
 654  * doesn't check pldd ptr validity: crash (W98SE)
 655  * What the !@#$%&*( is the difference between CtlFindLdd() and CtlGetLdd() ??
 656  *
 657  * RETURN
 658  *   ERR_VCP_LDDINVALID if pldd->cbSize != structsize
 659  *
 660  */
 661 static RETERR16 SETUPX_GetLdd(LPLOGDISKDESC pldd)
 662 {
 663     LDD_LIST *pCurr, *pPrev = NULL;
 664
 665     if (!std_LDDs_done)
 666         SETUPX_CreateStandardLDDs();
 667
 668     if (pldd->cbSize != sizeof(LOGDISKDESC_S))
 669         return ERR_VCP_LDDINVALID;
 670
 671     pCurr = pFirstLDD;
 672     /* search until we find the appropriate LDD or hit the end */
 673     while ((pCurr != NULL) && (pldd->ldid > pCurr->pldd->ldid))
 674     {
 675          pPrev = pCurr;
 676          pCurr = pCurr->next;
 677     }
 678     if (pCurr == NULL) /* hit end of list */
 679         return ERR_VCP_LDDFIND; /* correct ? */
 680
 681     memcpy(pldd, pCurr->pldd, pldd->cbSize);
 682     /* hmm, we probably ought to strcpy() the string ptrs here */
 683
 684     return OK;
 685 }
 686
 687 /**********************************************************************/
 688
 689 RETERR16 WINAPI CtlGetLdd16(LPLOGDISKDESC pldd)
 690 {
 691     FIXME("(%p); - please report this!\n", pldd);
 692     return SETUPX_GetLdd(pldd);
 693 }
 694
 695 /***********************************************************************
 696  *              CtlGetLddPath           (SETUPX.38)
 697  *
 698  * Gets the path of an LDD.
 699  * No crash if szPath == NULL.
 700  * szPath has to be at least MAX_PATH_LEN bytes long.
 701  * RETURN
 702  *   ERR_VCP_LDDUNINIT if LDD for LDID not found.
 703  */
 704 RETERR16 WINAPI CtlGetLddPath16(LOGDISKID16 ldid, LPSTR szPath)
 705 {
 706     TRACE("(%d, %p);\n", ldid, szPath);
 707
 708     if (szPath)
 709     {
 710         LOGDISKDESC_S ldd;
 711         INIT_LDD(ldd, ldid);
 712         if (CtlFindLdd16(&ldd) == ERR_VCP_LDDFIND)
 713             return ERR_VCP_LDDUNINIT;
 714         SETUPX_GetLdd(&ldd);
 715         strcpy(szPath, ldd.pszPath);
 716         TRACE("ret '%s' for LDID %d\n", szPath, ldid);
 717     }
 718     return OK;
 719 }
 720
 721 /***********************************************************************
 722  *              CtlSetLddPath           (SETUPX.508)
 723  *
 724  * Sets the path of an LDD.
 725  * Creates LDD for LDID if not existing yet.
 726  */
 727 RETERR16 WINAPI CtlSetLddPath16(LOGDISKID16 ldid, LPSTR szPath)
 728 {
 729     LOGDISKDESC_S ldd;
 730     TRACE("(%d, '%s');\n", ldid, szPath);
 731
 732     SetupSetDirectoryIdA( 0, ldid, szPath );
 733     INIT_LDD(ldd, ldid);
 734     ldd.pszPath = szPath;
 735     return CtlSetLdd16(&ldd);
 736 }