reactos/lib/shell32/shlexec.c

   1 /*
   2  *                              Shell Library Functions
   3  *
   4  * Copyright 1998 Marcus Meissner
   5  * Copyright 2002 Eric Pouech
   6  *
   7  * This library is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU Lesser General Public
   9  * License as published by the Free Software Foundation; either
  10  * version 2.1 of the License, or (at your option) any later version.
  11  *
  12  * This library is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * Lesser General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Lesser General Public
  18  * License along with this library; if not, write to the Free Software
  19  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  20  */
  21
  22 #include "config.h"
  23 #include "wine/port.h"
  24
  25 #include <stdlib.h>
  26 #include <string.h>
  27 #include <stdarg.h>
  28 #include <stdio.h>
  29 #ifdef HAVE_UNISTD_H
  30 # include <unistd.h>
  31 #endif
  32 #include <ctype.h>
  33 #include <assert.h>
  34
  35 #include "windef.h"
  36 #include "winbase.h"
  37 #include "winerror.h"
  38 #include "winreg.h"
  39 #include "wownt32.h"
  40 #include "shellapi.h"
  41 #include "wingdi.h"
  42 #include "winuser.h"
  43 #include "shlobj.h"
  44 #include "shlwapi.h"
  45 #include "ddeml.h"
  46
  47 #include "wine/winbase16.h"
  48 #include "shell32_main.h"
  49 #include "undocshell.h"
  50 #include "pidl.h"
  51
  52 #include "wine/debug.h"
  53
  54 WINE_DEFAULT_DEBUG_CHANNEL(exec);
  55
  56 static const WCHAR wszOpen[] = {'o','p','e','n',0};
  57 static const WCHAR wszExe[] = {'.','e','x','e',0};
  58 static const WCHAR wszILPtr[] = {':','%','p',0};
  59 static const WCHAR wszShell[] = {'\\','s','h','e','l','l','\\',0};
  60 static const WCHAR wszFolder[] = {'F','o','l','d','e','r',0};
  61 static const WCHAR wszEmpty[] = {0};
  62
  63
  64 /***********************************************************************
  65  *      SHELL_ArgifyW [Internal]
  66  *
  67  * this function is supposed to expand the escape sequences found in the registry
  68  * some diving reported that the following were used:
  69  * + %1, %2...  seem to report to parameter of index N in ShellExecute pmts
  70  *      %1 file
  71  *      %2 printer
  72  *      %3 driver
  73  *      %4 port
  74  * %I address of a global item ID (explorer switch /idlist)
  75  * %L seems to be %1 as long filename followed by the 8+3 variation
  76  * %S ???
  77  * %* all following parameters (see batfile)
  78  *
  79  * FIXME: use 'len'
  80  */
  81 static BOOL SHELL_ArgifyW(WCHAR* out, int len, const WCHAR* fmt, const WCHAR* lpFile, LPITEMIDLIST pidl, LPCWSTR args)
  82 {
  83     WCHAR   xlpFile[1024];
  84     BOOL    done = FALSE;
  85     PWSTR   res = out;
  86     PCWSTR  cmd;
  87     LPVOID  pv;
  88
  89     while (*fmt)
  90     {
  91         if (*fmt == '%')
  92         {
  93             switch (*++fmt)
  94             {
  95               case '\0':
  96               case '%':
  97                 *res++ = '%';
  98                 break;
  99
 100               case '2':
 101               case '3':
 102               case '4':
 103               case '5':
 104               case '6':
 105               case '7':
 106               case '8':
 107               case '9':
 108               case '0':
 109               case '*':
 110                 if (args)
 111                 {
 112                     if (*fmt == '*')
 113                     {
 114                         *res++ = '"';
 115                         while(*args)
 116                             *res++ = *args++;
 117                         *res++ = '"';
 118                     }
 119                     else
 120                     {
 121                         while(*args && !isspace(*args))
 122                             *res++ = *args++;
 123
 124                         while(isspace(*args))
 125                             ++args;
 126                     }
 127                     break;
 128                 }
 129                 /* else fall through */
 130               case '1':
 131                 if (!done || (*fmt == '1'))
 132                 {
 133                     /*FIXME Is the call to SearchPathW() really needed? We already have separated out the parameter string in args. */
 134                     if (SearchPathW(NULL, lpFile, wszExe, sizeof(xlpFile)/sizeof(WCHAR), xlpFile, NULL))
 135                         cmd = xlpFile;
 136                     else
 137                         cmd = lpFile;
 138
 139                     /* Add double quotation marks unless we already have them (e.g.: "%1" %* for exefile) */
 140                     if (res==out || res[-1]!='"')
 141                     {
 142                         *res++ = '"';
 143                         strcpyW(res, cmd);
 144                         res += strlenW(cmd);
 145                         *res++ = '"';
 146                     }
 147                     else
 148                     {
 149                         strcpyW(res, cmd);
 150                         res += strlenW(cmd);
 151                     }
 152                 }
 153                 break;
 154
 155               /*
 156                * IE uses this alot for activating things such as windows media
 157                * player. This is not verified to be fully correct but it appears
 158                * to work just fine.
 159                */
 160               case 'l':
 161               case 'L':
 162                 if (lpFile) {
 163                     strcpyW(res, lpFile);
 164                     res += strlenW(lpFile);
 165                 }
 166                 break;
 167
 168               case 'i':
 169               case 'I':
 170                 if (pidl) {
 171                     HGLOBAL hmem = SHAllocShared(pidl, ILGetSize(pidl), 0);
 172                     pv = SHLockShared(hmem, 0);
 173                     res += sprintfW(res, wszILPtr, pv);
 174                     SHUnlockShared(pv);
 175                 }
 176                 break;
 177
 178             default: FIXME("Unknown escape sequence %%%c\n", *fmt);
 179             }
 180
 181             fmt++;
 182             done = TRUE;
 183         }
 184         else
 185             *res++ = *fmt++;
 186     }
 187
 188     *res = '\0';
 189
 190     return done;
 191 }
 192
 193 HRESULT SHELL_GetPathFromIDListForExecuteA(LPCITEMIDLIST pidl, LPSTR pszPath, UINT uOutSize)
 194 {
 195     STRRET strret;
 196     IShellFolder* desktop;
 197
 198     HRESULT hr = SHGetDesktopFolder(&desktop);
 199
 200     if (SUCCEEDED(hr)) {
 201         hr = IShellFolder_GetDisplayNameOf(desktop, pidl, SHGDN_FORPARSING, &strret);
 202
 203         if (SUCCEEDED(hr))
 204             StrRetToStrNA(pszPath, uOutSize, &strret, pidl);
 205
 206         IShellFolder_Release(desktop);
 207     }
 208
 209     return hr;
 210 }
 211
 212 HRESULT SHELL_GetPathFromIDListForExecuteW(LPCITEMIDLIST pidl, LPWSTR pszPath, UINT uOutSize)
 213 {
 214     STRRET strret;
 215     IShellFolder* desktop;
 216
 217     HRESULT hr = SHGetDesktopFolder(&desktop);
 218
 219     if (SUCCEEDED(hr)) {
 220         hr = IShellFolder_GetDisplayNameOf(desktop, pidl, SHGDN_FORPARSING, &strret);
 221
 222         if (SUCCEEDED(hr))
 223             StrRetToStrNW(pszPath, uOutSize, &strret, pidl);
 224
 225         IShellFolder_Release(desktop);
 226     }
 227
 228     return hr;
 229 }
 230
 231 /*************************************************************************
 232  *      SHELL_ResolveShortCutW [Internal]
 233  *      read shortcut file at 'wcmd'
 234  */
 235 static HRESULT SHELL_ResolveShortCutW(LPWSTR wcmd, LPWSTR wargs, LPWSTR wdir, HWND hwnd, LPCWSTR lpVerb, int* pshowcmd, LPITEMIDLIST* ppidl)
 236 {
 237     IShellFolder* psf;
 238
 239     HRESULT hr = SHGetDesktopFolder(&psf);
 240
 241     *ppidl = NULL;
 242
 243     if (SUCCEEDED(hr)) {
 244         LPITEMIDLIST pidl;
 245         ULONG l;
 246
 247         hr = IShellFolder_ParseDisplayName(psf, 0, 0, wcmd, &l, &pidl, 0);
 248
 249         if (SUCCEEDED(hr)) {
 250             IShellLinkW* psl;
 251
 252             hr = IShellFolder_GetUIObjectOf(psf, NULL, 1, (LPCITEMIDLIST*)&pidl, &IID_IShellLinkW, NULL, (LPVOID*)&psl);
 253
 254             if (SUCCEEDED(hr)) {
 255                 hr = IShellLinkW_Resolve(psl, hwnd, 0);
 256
 257                 if (SUCCEEDED(hr)) {
 258                     hr = IShellLinkW_GetPath(psl, wcmd, MAX_PATH, NULL, SLGP_UNCPRIORITY);
 259
 260                     if (SUCCEEDED(hr)) {
 261                         if (!*wcmd) {
 262                             /* We could not translate the PIDL in the shell link into a valid file system path - so return the PIDL instead. */
 263                             hr = IShellLinkW_GetIDList(psl, ppidl);
 264
 265                             if (SUCCEEDED(hr) && *ppidl) {
 266                                 /* We got a PIDL instead of a file system path - try to translate it. */
 267                                 if (SUCCEEDED(SHELL_GetPathFromIDListW(*ppidl, wcmd, MAX_PATH))) {
 268                                     SHFree(*ppidl);
 269                                     *ppidl = NULL;
 270                                 }
 271                             }
 272                         }
 273
 274                         if (SUCCEEDED(hr)) {
 275                             /* get command line arguments, working directory and display mode if available */
 276                             IShellLinkW_GetWorkingDirectory(psl, wdir, MAX_PATH);
 277                             IShellLinkW_GetArguments(psl, wargs, MAX_PATH);
 278                             IShellLinkW_GetShowCmd(psl, pshowcmd);
 279                         }
 280                     }
 281                 }
 282
 283                 IShellLinkW_Release(psl);
 284             }
 285
 286             SHFree(pidl);
 287         }
 288
 289         IShellFolder_Release(psf);
 290     }
 291
 292     return hr;
 293 }
 294
 295 /*************************************************************************
 296  *      SHELL_ExecuteW [Internal]
 297  *
 298  */
 299 static UINT SHELL_ExecuteW(const WCHAR *lpCmd, void *env, BOOL shWait,
 300                             LPSHELLEXECUTEINFOW psei, LPSHELLEXECUTEINFOW psei_out)
 301 {
 302     STARTUPINFOW  startup;
 303     PROCESS_INFORMATION info;
 304     UINT retval = 31;
 305     UINT gcdret = 0;
 306     WCHAR curdir[MAX_PATH];
 307
 308     TRACE("Execute %s from directory %s\n", debugstr_w(lpCmd), debugstr_w(psei->lpDirectory));
 309
 310     /* ShellExecute specifies the command from psei->lpDirectory
 311      * if present. Not from the current dir as CreateProcess does */
 312     if( psei->lpDirectory && psei->lpDirectory[0] )
 313         if( ( gcdret = GetCurrentDirectoryW( MAX_PATH, curdir)))
 314             if( !SetCurrentDirectoryW( psei->lpDirectory))
 315                 ERR("cannot set directory %s\n", debugstr_w(psei->lpDirectory));
 316
 317     ZeroMemory(&startup, sizeof(startup));
 318     startup.cb = sizeof(STARTUPINFOW);
 319     startup.dwFlags = STARTF_USESHOWWINDOW;
 320     startup.wShowWindow = psei->nShow;
 321
 322     if (CreateProcessW(NULL, (LPWSTR)lpCmd, NULL, NULL, FALSE, 0,
 323                        env, *psei->lpDirectory? psei->lpDirectory: NULL, &startup, &info))
 324     {
 325         /* Give 30 seconds to the app to come up, if desired. Probably only needed
 326            when starting app immediately before making a DDE connection. */
 327         if (shWait)
 328             if (WaitForInputIdle( info.hProcess, 30000 ) == WAIT_FAILED)
 329                 WARN("WaitForInputIdle failed: Error %ld\n", GetLastError() );
 330         retval = 33;
 331
 332         if (psei->fMask & SEE_MASK_NOCLOSEPROCESS)
 333             psei_out->hProcess = info.hProcess;
 334         else
 335             CloseHandle(info.hProcess);
 336
 337         CloseHandle(info.hThread);
 338     }
 339     else if ((retval = GetLastError()) >= 32)
 340     {
 341         FIXME("Strange error set by CreateProcess: %d\n", retval);
 342         retval = ERROR_BAD_FORMAT;
 343     }
 344
 345     TRACE("returning %u\n", retval);
 346
 347     psei_out->hInstApp = (HINSTANCE)retval;
 348
 349     if( gcdret )
 350         if( !SetCurrentDirectoryW( curdir))
 351             ERR("cannot return to directory %s\n", debugstr_w(curdir));
 352
 353     return retval;
 354 }
 355
 356
 357 /***********************************************************************
 358  *           SHELL_BuildEnvW    [Internal]
 359  *
 360  * Build the environment for the new process, adding the specified
 361  * path to the PATH variable. Returned pointer must be freed by caller.
 362  */
 363 static void *SHELL_BuildEnvW( const WCHAR *path )
 364 {
 365     static const WCHAR wPath[] = {'P','A','T','H','=',0};
 366     WCHAR *strings, *new_env;
 367     WCHAR *p, *p2;
 368     int total = strlenW(path) + 1;
 369     BOOL got_path = FALSE;
 370
 371     if (!(strings = GetEnvironmentStringsW())) return NULL;
 372     p = strings;
 373     while (*p)
 374     {
 375         int len = strlenW(p) + 1;
 376         if (!strncmpiW( p, wPath, 5 )) got_path = TRUE;
 377         total += len;
 378         p += len;
 379     }
 380     if (!got_path) total += 5;  /* we need to create PATH */
 381     total++;  /* terminating null */
 382
 383     if (!(new_env = HeapAlloc( GetProcessHeap(), 0, total * sizeof(WCHAR) )))
 384     {
 385         FreeEnvironmentStringsW( strings );
 386         return NULL;
 387     }
 388     p = strings;
 389     p2 = new_env;
 390     while (*p)
 391     {
 392         int len = strlenW(p) + 1;
 393         memcpy( p2, p, len * sizeof(WCHAR) );
 394         if (!strncmpiW( p, wPath, 5 ))
 395         {
 396             p2[len - 1] = ';';
 397             strcpyW( p2 + len, path );
 398             p2 += strlenW(path) + 1;
 399         }
 400         p += len;
 401         p2 += len;
 402     }
 403     if (!got_path)
 404     {
 405         strcpyW( p2, wPath );
 406         strcatW( p2, path );
 407         p2 += strlenW(p2) + 1;
 408     }
 409     *p2 = 0;
 410     FreeEnvironmentStringsW( strings );
 411     return new_env;
 412 }
 413
 414
 415 /***********************************************************************
 416  *           SHELL_TryAppPathW  [Internal]
 417  *
 418  * Helper function for SHELL_FindExecutable
 419  * @param lpResult - pointer to a buffer of size MAX_PATH
 420  * On entry: szName is a filename (probably without path separators).
 421  * On exit: if szName found in "App Path", place full path in lpResult, and return true
 422  */
 423 static BOOL SHELL_TryAppPathW(LPCWSTR szName, LPWSTR lpResult, void** env)
 424 {
 425     static const WCHAR wszKeyAppPaths[] = {'S','o','f','t','w','a','r','e','\\','M','i','c','r','o','s','o','f','t','\\','W','i','n','d','o','w','s',
 426         '\\','C','u','r','r','e','n','t','V','e','r','s','i','o','n','\\','A','p','p',' ','P','a','t','h','s','\\',0};
 427     static const WCHAR wPath[] = {'P','a','t','h',0};
 428
 429     HKEY hkApp = 0;
 430     WCHAR buffer[1024];
 431     LONG len;
 432     LONG res;
 433     BOOL found = FALSE;
 434
 435     if (env) *env = NULL;
 436     strcpyW(buffer, wszKeyAppPaths);
 437     strcatW(buffer, szName);
 438     res = RegOpenKeyExW(HKEY_LOCAL_MACHINE, buffer, 0, KEY_READ, &hkApp);
 439     if (res) goto end;
 440
 441     len = MAX_PATH*sizeof(WCHAR);
 442     res = RegQueryValueW(hkApp, NULL, lpResult, &len);
 443     if (res) goto end;
 444     found = TRUE;
 445
 446     if (env)
 447     {
 448         DWORD count = sizeof(buffer);
 449         if (!RegQueryValueExW(hkApp, wPath, NULL, NULL, (LPBYTE)buffer, &count) && buffer[0])
 450             *env = SHELL_BuildEnvW( buffer );
 451     }
 452
 453 end:
 454     if (hkApp) RegCloseKey(hkApp);
 455     return found;
 456 }
 457
 458 static UINT SHELL_FindExecutableByOperation(LPCWSTR lpPath, LPCWSTR lpFile, LPCWSTR lpOperation, LPWSTR key, LPWSTR filetype, LPWSTR command, LONG commandlen)
 459 {
 460     static const WCHAR wCommand[] = {'\\','c','o','m','m','a','n','d',0};
 461
 462     /* Looking for ...buffer\shell\<verb>\command */
 463     strcatW(filetype, wszShell);
 464     strcatW(filetype, lpOperation);
 465     strcatW(filetype, wCommand);
 466
 467     if (RegQueryValueW(HKEY_CLASSES_ROOT, filetype, command,
 468                        &commandlen) == ERROR_SUCCESS)
 469     {
 470         commandlen /= sizeof(WCHAR);
 471         if (key) strcpyW(key, filetype);
 472 #if 0
 473         LPWSTR tmp;
 474         WCHAR param[256];
 475         LONG paramlen = sizeof(param);
 476         static const WCHAR wSpace[] = {' ',0};
 477
 478         /* FIXME: it seems all Windows version don't behave the same here.
 479          * the doc states that this ddeexec information can be found after
 480          * the exec names.
 481          * on Win98, it doesn't appear, but I think it does on Win2k
 482          */
 483         /* Get the parameters needed by the application
 484            from the associated ddeexec key */
 485         tmp = strstrW(filetype, wCommand);
 486         tmp[0] = '\0';
 487         strcatW(filetype, wDdeexec);
 488         if (RegQueryValueW(HKEY_CLASSES_ROOT, filetype, param,
 489                                      &paramlen) == ERROR_SUCCESS)
 490         {
 491             paramlen /= sizeof(WCHAR);
 492             strcatW(command, wSpace);
 493             strcatW(command, param);
 494             commandlen += paramlen;
 495         }
 496 #endif
 497
 498         command[commandlen] = '\0';
 499
 500         return 33; /* FIXME see SHELL_FindExecutable() */
 501     }
 502
 503     return 31;  /* default - 'No association was found' */
 504 }
 505
 506 /*************************************************************************
 507  *      SHELL_FindExecutable [Internal]
 508  *
 509  * Utility for code sharing between FindExecutable and ShellExecute
 510  * in:
 511  *      lpFile the name of a file
 512  *      lpOperation the operation on it (open)
 513  * out:
 514  *      lpResult a buffer, big enough :-(, to store the command to do the
 515  *              operation on the file
 516  *      key a buffer, big enough, to get the key name to do actually the
 517  *              command (it'll be used afterwards for more information
 518  *              on the operation)
 519  */
 520 UINT SHELL_FindExecutable(LPCWSTR lpPath, LPCWSTR lpFile, LPCWSTR lpOperation,
 521                             LPWSTR lpResult, int resultLen, LPWSTR key, void **env, LPITEMIDLIST pidl, LPCWSTR args)
 522 {
 523     static const WCHAR wWindows[] = {'w','i','n','d','o','w','s',0};
 524     static const WCHAR wPrograms[] = {'p','r','o','g','r','a','m','s',0};
 525     static const WCHAR wExtensions[] = {'e','x','e',' ','p','i','f',' ','b','a','t',' ','c','m','d',' ','c','o','m',0};
 526
 527     WCHAR *extension = NULL; /* pointer to file extension */
 528     WCHAR filetype[256];     /* registry name for this filetype */
 529     LONG  filetypelen = sizeof(filetype); /* length of above */
 530     WCHAR command[1024];     /* command from registry */
 531     WCHAR wBuffer[256];      /* Used to GetProfileString */
 532     UINT  retval = 31;       /* default - 'No association was found' */
 533     WCHAR *tok;              /* token pointer */
 534     WCHAR xlpFile[256];      /* result of SearchPath */
 535     DWORD attribs;           /* file attributes */
 536
 537     TRACE("%s\n", (lpFile != NULL) ? debugstr_w(lpFile) : "-");
 538
 539     xlpFile[0] = '\0';
 540     lpResult[0] = '\0'; /* Start off with an empty return string */
 541     if (key) *key = '\0';
 542
 543     /* trap NULL parameters on entry */
 544     if ((lpFile == NULL) || (lpResult == NULL))
 545     {
 546         WARN("(lpFile=%s,lpResult=%s): NULL parameter\n", debugstr_w(lpFile), debugstr_w(lpResult));
 547         return 2; /* File not found. Close enough, I guess. */
 548     }
 549
 550     if (SHELL_TryAppPathW( lpFile, lpResult, env ))
 551     {
 552         TRACE("found %s via App Paths\n", debugstr_w(lpResult));
 553         return 33;
 554     }
 555
 556     if (SearchPathW(lpPath, lpFile, wszExe, sizeof(xlpFile)/sizeof(WCHAR), xlpFile, NULL))
 557     {
 558         TRACE("SearchPathW returned non-zero\n");
 559         lpFile = xlpFile;
 560         /* Hey, isn't this value ignored?  Why make this call?  Shouldn't we return here?  --dank*/
 561     }
 562
 563     attribs = GetFileAttributesW(lpFile);
 564     if (attribs!=INVALID_FILE_ATTRIBUTES && (attribs&FILE_ATTRIBUTE_DIRECTORY))
 565     {
 566         strcpyW(filetype, wszFolder);
 567         filetypelen = 6;    /* strlen("Folder") */
 568     }
 569     else
 570     {
 571         /* First thing we need is the file's extension */
 572         extension = strrchrW(xlpFile, '.'); /* Assume last "." is the one; */
 573                                            /* File->Run in progman uses */
 574                                            /* .\FILE.EXE :( */
 575         TRACE("xlpFile=%s,extension=%s\n", debugstr_w(xlpFile), debugstr_w(extension));
 576
 577         if (extension == NULL || extension[1]==0)
 578         {
 579             WARN("Returning 31 - No association\n");
 580             return 31; /* no association */
 581         }
 582
 583         /* Three places to check: */
 584         /* 1. win.ini, [windows], programs (NB no leading '.') */
 585         /* 2. Registry, HKEY_CLASS_ROOT\<filetype>\shell\open\command */
 586         /* 3. win.ini, [extensions], extension (NB no leading '.' */
 587         /* All I know of the order is that registry is checked before */
 588         /* extensions; however, it'd make sense to check the programs */
 589         /* section first, so that's what happens here. */
 590
 591         /* See if it's a program - if GetProfileString fails, we skip this
 592          * section. Actually, if GetProfileString fails, we've probably
 593          * got a lot more to worry about than running a program... */
 594         if (GetProfileStringW(wWindows, wPrograms, wExtensions, wBuffer, sizeof(wBuffer)/sizeof(WCHAR)) > 0)
 595         {
 596             CharLowerW(wBuffer);
 597             tok = wBuffer;
 598             while (*tok)
 599             {
 600                 WCHAR *p = tok;
 601                 while (*p && *p != ' ' && *p != '\t') p++;
 602                 if (*p)
 603                 {
 604                     *p++ = 0;
 605                     while (*p == ' ' || *p == '\t') p++;
 606                 }
 607
 608                 if (strcmpiW(tok, &extension[1]) == 0) /* have to skip the leading "." */
 609                 {
 610                     strcpyW(lpResult, xlpFile);
 611                     /* Need to perhaps check that the file has a path
 612                      * attached */
 613                     TRACE("found %s\n", debugstr_w(lpResult));
 614                     return 33;
 615
 616                     /* Greater than 32 to indicate success FIXME According to the
 617                      * docs, I should be returning a handle for the
 618                      * executable. Does this mean I'm supposed to open the
 619                      * executable file or something? More RTFM, I guess... */
 620                 }
 621                 tok = p;
 622             }
 623         }
 624
 625         /* Check registry */
 626         if (RegQueryValueW(HKEY_CLASSES_ROOT, extension, filetype,
 627                             &filetypelen) == ERROR_SUCCESS)
 628         {
 629             filetypelen /= sizeof(WCHAR);
 630             filetype[filetypelen] = '\0';
 631             TRACE("File type: %s\n", debugstr_w(filetype));
 632         }
 633     }
 634
 635     if (*filetype)
 636     {
 637         if (lpOperation)
 638         {
 639             /* pass the operation string to SHELL_FindExecutableByOperation() */
 640             filetype[filetypelen] = '\0';
 641             retval = SHELL_FindExecutableByOperation(lpPath, lpFile, lpOperation, key, filetype, command, sizeof(command));
 642         }
 643         else
 644         {
 645             WCHAR operation[MAX_PATH];
 646             HKEY hkey;
 647
 648             /* Looking for ...buffer\shell\<operation>\command */
 649             strcatW(filetype, wszShell);
 650
 651             /* enumerate the operation subkeys in the registry and search for one with an associated command */
 652             if (RegOpenKeyW(HKEY_CLASSES_ROOT, filetype, &hkey) == ERROR_SUCCESS)
 653             {
 654                 int idx = 0;
 655                 for(;; ++idx)
 656                 {
 657                     if (RegEnumKeyW(hkey, idx, operation, MAX_PATH) != ERROR_SUCCESS)
 658                         break;
 659
 660                     filetype[filetypelen] = '\0';
 661                     retval = SHELL_FindExecutableByOperation(lpPath, lpFile, operation, key, filetype, command, sizeof(command));
 662
 663                     if (retval > 32)
 664                         break;
 665                 }
 666                 RegCloseKey(hkey);
 667             }
 668         }
 669
 670         if (retval > 32)
 671         {
 672             SHELL_ArgifyW(lpResult, resultLen, command, xlpFile, pidl, args);
 673
 674             /* Remove double quotation marks and command line arguments */
 675             if (*lpResult == '"')
 676             {
 677                 WCHAR *p = lpResult;
 678                 while (*(p + 1) != '"')
 679                 {
 680                     *p = *(p + 1);
 681                     p++;
 682                 }
 683                 *p = '\0';
 684             }
 685         }
 686     }
 687     else if (extension) /* Check win.ini */
 688     {
 689         static const WCHAR wExtensions[] = {'e','x','t','e','n','s','i','o','n','s',0};
 690
 691         /* Toss the leading dot */
 692         extension++;
 693         if (GetProfileStringW(wExtensions, extension, wszEmpty, command, sizeof(command)/sizeof(WCHAR)) > 0)
 694         {
 695             if (strlenW(command) != 0)
 696             {
 697                 strcpyW(lpResult, command);
 698                 tok = strchrW(lpResult, '^'); /* should be ^.extension? */
 699
 700                 if (tok != NULL)
 701                 {
 702                     tok[0] = '\0';
 703                     strcatW(lpResult, xlpFile); /* what if no dir in xlpFile? */
 704                     tok = strchrW(command, '^'); /* see above */
 705                     if ((tok != NULL) && (strlenW(tok)>5))
 706                     {
 707                         strcatW(lpResult, &tok[5]);
 708                     }
 709                 }
 710
 711                 retval = 33; /* FIXME - see above */
 712             }
 713         }
 714     }
 715
 716     TRACE("returning %s\n", debugstr_w(lpResult));
 717     return retval;
 718 }
 719
 720 /******************************************************************
 721  *              dde_cb
 722  *
 723  * callback for the DDE connection. not really usefull
 724  */
 725 static HDDEDATA CALLBACK dde_cb(UINT uType, UINT uFmt, HCONV hConv,
 726                                 HSZ hsz1, HSZ hsz2,
 727                                 HDDEDATA hData, DWORD dwData1, DWORD dwData2)
 728 {
 729     return NULL;
 730 }
 731
 732 /******************************************************************
 733  *              dde_connect
 734  *
 735  * ShellExecute helper. Used to do an operation with a DDE connection
 736  *
 737  * Handles both the direct connection (try #1), and if it fails,
 738  * launching an application and trying (#2) to connect to it
 739  *
 740  */
 741 static unsigned dde_connect(WCHAR * key, WCHAR* start, WCHAR* ddeexec,
 742                             const WCHAR* lpFile, void *env,
 743                             LPCWSTR szCommandline, LPITEMIDLIST pidl, SHELL_ExecuteW32 execfunc,
 744                             LPSHELLEXECUTEINFOW psei, LPSHELLEXECUTEINFOW psei_out)
 745 {
 746     static const WCHAR wApplication[] = {'\\','a','p','p','l','i','c','a','t','i','o','n',0};
 747     static const WCHAR wTopic[] = {'\\','t','o','p','i','c',0};
 748
 749     WCHAR*      endkey = key + strlenW(key);
 750     WCHAR       app[256], topic[256], ifexec[256];
 751     WCHAR       res[1024];
 752     LONG        applen, topiclen, ifexeclen;
 753     WCHAR *     exec;
 754     DWORD       ddeInst = 0;
 755     DWORD       tid;
 756     HSZ         hszApp, hszTopic;
 757     HCONV       hConv;
 758     unsigned    ret = 31;
 759
 760     strcpyW(endkey, wApplication);
 761     applen = sizeof(app);
 762     if (RegQueryValueW(HKEY_CLASSES_ROOT, key, app, &applen) != ERROR_SUCCESS)
 763     {
 764         FIXME("default app name NIY %s\n", debugstr_w(key));
 765         return 2;
 766     }
 767
 768     strcpyW(endkey, wTopic);
 769     topiclen = sizeof(topic);
 770     if (RegQueryValueW(HKEY_CLASSES_ROOT, key, topic, &topiclen) != ERROR_SUCCESS)
 771     {
 772         static const WCHAR wSystem[] = {'S','y','s','t','e','m',0};
 773         strcpyW(topic, wSystem);
 774     }
 775
 776     if (DdeInitializeW(&ddeInst, dde_cb, APPCMD_CLIENTONLY, 0L) != DMLERR_NO_ERROR)
 777     {
 778         return 2;
 779     }
 780
 781     hszApp = DdeCreateStringHandleW(ddeInst, app, CP_WINANSI);
 782     hszTopic = DdeCreateStringHandleW(ddeInst, topic, CP_WINANSI);
 783
 784     hConv = DdeConnect(ddeInst, hszApp, hszTopic, NULL);
 785     exec = ddeexec;
 786     if (!hConv)
 787     {
 788         static const WCHAR wIfexec[] = {'\\','i','f','e','x','e','c',0};
 789         TRACE("Launching '%s'\n", debugstr_w(start));
 790         ret = execfunc(start, env, TRUE, psei, psei_out);
 791         if (ret < 32)
 792         {
 793             TRACE("Couldn't launch\n");
 794             goto error;
 795         }
 796         hConv = DdeConnect(ddeInst, hszApp, hszTopic, NULL);
 797         if (!hConv)
 798         {
 799             TRACE("Couldn't connect. ret=%d\n", ret);
 800             DdeUninitialize(ddeInst);
 801             SetLastError(ERROR_DDE_FAIL);
 802             return 30; /* whatever */
 803         }
 804         strcpyW(endkey, wIfexec);
 805         ifexeclen = sizeof(ifexec);
 806         if (RegQueryValueW(HKEY_CLASSES_ROOT, key, ifexec, &ifexeclen) == ERROR_SUCCESS)
 807         {
 808             exec = ifexec;
 809         }
 810     }
 811
 812     SHELL_ArgifyW(res, sizeof(res)/sizeof(WCHAR), exec, lpFile, pidl, szCommandline);
 813     TRACE("%s %s => %s\n", debugstr_w(exec), debugstr_w(lpFile), debugstr_w(res));
 814
 815     ret = (DdeClientTransaction((LPBYTE)res, (strlenW(res) + 1) * sizeof(WCHAR), hConv, 0L, 0,
 816                                 XTYP_EXECUTE, 10000, &tid) != DMLERR_NO_ERROR) ? 31 : 33;
 817     DdeDisconnect(hConv);
 818
 819  error:
 820     DdeUninitialize(ddeInst);
 821
 822     return ret;
 823 }
 824
 825 /*************************************************************************
 826  *      execute_from_key [Internal]
 827  */
 828 static UINT execute_from_key(LPWSTR key, LPCWSTR lpFile, void *env, LPCWSTR szCommandline,
 829                              SHELL_ExecuteW32 execfunc,
 830                              LPSHELLEXECUTEINFOW psei, LPSHELLEXECUTEINFOW psei_out)
 831 {
 832     WCHAR cmd[1024];
 833     LONG cmdlen = sizeof(cmd);
 834     UINT retval = 31;
 835
 836     cmd[0] = '\0';
 837
 838     /* Get the application for the registry */
 839     if (RegQueryValueW(HKEY_CLASSES_ROOT, key, cmd, &cmdlen) == ERROR_SUCCESS)
 840     {
 841         static const WCHAR wCommand[] = {'c','o','m','m','a','n','d',0};
 842         static const WCHAR wDdeexec[] = {'d','d','e','e','x','e','c',0};
 843
 844         LPWSTR tmp;
 845         WCHAR param[256];
 846         LONG paramlen = sizeof(param);
 847
 848         param[0] = '\0';
 849
 850         /* Get the parameters needed by the application
 851            from the associated ddeexec key */
 852         tmp = strstrW(key, wCommand);
 853         assert(tmp);
 854         strcpyW(tmp, wDdeexec);
 855
 856         if (RegQueryValueW(HKEY_CLASSES_ROOT, key, param, &paramlen) == ERROR_SUCCESS)
 857         {
 858             TRACE("Got ddeexec %s => %s\n", debugstr_w(key), debugstr_w(param));
 859             retval = dde_connect(key, cmd, param, lpFile, env, szCommandline, psei->lpIDList, execfunc, psei, psei_out);
 860         }
 861         else
 862         {
 863             /* Is there a replace() function anywhere? */
 864             cmdlen /= sizeof(WCHAR);
 865             cmd[cmdlen] = '\0';
 866             SHELL_ArgifyW(param, sizeof(param)/sizeof(WCHAR), cmd, lpFile, psei->lpIDList, szCommandline);
 867             retval = execfunc(param, env, FALSE, psei, psei_out);
 868         }
 869     }
 870     else TRACE("ooch\n");
 871
 872     return retval;
 873 }
 874
 875 /*************************************************************************
 876  * FindExecutableA                      [SHELL32.@]
 877  */
 878 HINSTANCE WINAPI FindExecutableA(LPCSTR lpFile, LPCSTR lpDirectory, LPSTR lpResult)
 879 {
 880     HINSTANCE retval;
 881     WCHAR *wFile = NULL, *wDirectory = NULL;
 882     WCHAR wResult[MAX_PATH];
 883
 884     if (lpFile) __SHCloneStrAtoW(&wFile, lpFile);
 885     if (lpDirectory) __SHCloneStrAtoW(&wDirectory, lpDirectory);
 886
 887     retval = FindExecutableW(wFile, wDirectory, wResult);
 888     WideCharToMultiByte(CP_ACP, 0, wResult, -1, lpResult, MAX_PATH, NULL, NULL);
 889     if (wFile) SHFree( wFile );
 890     if (wDirectory) SHFree( wDirectory );
 891
 892     TRACE("returning %s\n", lpResult);
 893     return (HINSTANCE)retval;
 894 }
 895
 896 /*************************************************************************
 897  * FindExecutableW                      [SHELL32.@]
 898  */
 899 HINSTANCE WINAPI FindExecutableW(LPCWSTR lpFile, LPCWSTR lpDirectory, LPWSTR lpResult)
 900 {
 901     UINT retval = 31;    /* default - 'No association was found' */
 902     WCHAR old_dir[1024];
 903
 904     TRACE("File %s, Dir %s\n",
 905           (lpFile != NULL ? debugstr_w(lpFile) : "-"), (lpDirectory != NULL ? debugstr_w(lpDirectory) : "-"));
 906
 907     lpResult[0] = '\0'; /* Start off with an empty return string */
 908
 909     /* trap NULL parameters on entry */
 910     if ((lpFile == NULL) || (lpResult == NULL))
 911     {
 912         /* FIXME - should throw a warning, perhaps! */
 913         return (HINSTANCE)2; /* File not found. Close enough, I guess. */
 914     }
 915
 916     if (lpDirectory)
 917     {
 918         GetCurrentDirectoryW(sizeof(old_dir)/sizeof(WCHAR), old_dir);
 919         SetCurrentDirectoryW(lpDirectory);
 920     }
 921
 922     retval = SHELL_FindExecutable(lpDirectory, lpFile, wszOpen, lpResult, MAX_PATH, NULL, NULL, NULL, NULL);
 923
 924     TRACE("returning %s\n", debugstr_w(lpResult));
 925     if (lpDirectory)
 926         SetCurrentDirectoryW(old_dir);
 927     return (HINSTANCE)retval;
 928 }
 929
 930 /*************************************************************************
 931  *      ShellExecuteExW32 [Internal]
 932  */
 933 BOOL WINAPI ShellExecuteExW32 (LPSHELLEXECUTEINFOW psei, SHELL_ExecuteW32 execfunc)
 934 {
 935     static const WCHAR wQuote[] = {'"',0};
 936     static const WCHAR wSpace[] = {' ',0};
 937     static const WCHAR wWww[] = {'w','w','w',0};
 938     static const WCHAR wFile[] = {'f','i','l','e',0};
 939     static const WCHAR wHttp[] = {'h','t','t','p',':','/','/',0};
 940     static const WCHAR wExtLnk[] = {'.','l','n','k',0};
 941     static const WCHAR wExplorer[] = {'e','x','p','l','o','r','e','r','.','e','x','e',0};
 942
 943     WCHAR wszApplicationName[MAX_PATH+2], wszParameters[1024], wszDir[MAX_PATH];
 944     SHELLEXECUTEINFOW sei_tmp;  /* modifyable copy of SHELLEXECUTEINFO struct */
 945     WCHAR wfileName[MAX_PATH];
 946     void *env;
 947     WCHAR wszProtocol[256];
 948     LPCWSTR lpFile;
 949     UINT retval = 31;
 950     WCHAR buffer[1024];
 951     const WCHAR* ext;
 952
 953     /* make a local copy of the LPSHELLEXECUTEINFO structure and work with this from now on */
 954     memcpy(&sei_tmp, psei, sizeof(sei_tmp));
 955
 956     TRACE("mask=0x%08lx hwnd=%p verb=%s file=%s parm=%s dir=%s show=0x%08x class=%s\n",
 957             sei_tmp.fMask, sei_tmp.hwnd, debugstr_w(sei_tmp.lpVerb),
 958             debugstr_w(sei_tmp.lpFile), debugstr_w(sei_tmp.lpParameters),
 959             debugstr_w(sei_tmp.lpDirectory), sei_tmp.nShow,
 960             (sei_tmp.fMask & SEE_MASK_CLASSNAME) ? debugstr_w(sei_tmp.lpClass) : "not used");
 961
 962     psei->hProcess = NULL;
 963
 964     /* make copies of all path/command strings */
 965     if (sei_tmp.lpFile)
 966         strcpyW(wszApplicationName, sei_tmp.lpFile);
 967     else
 968         *wszApplicationName = '\0';
 969
 970     if (sei_tmp.lpParameters)
 971         strcpyW(wszParameters, sei_tmp.lpParameters);
 972     else
 973         *wszParameters = '\0';
 974
 975     if (sei_tmp.lpDirectory)
 976         strcpyW(wszDir, sei_tmp.lpDirectory);
 977     else
 978         *wszDir = '\0';
 979
 980     /* adjust string pointers to point to the new buffers */
 981     sei_tmp.lpFile = wszApplicationName;
 982     sei_tmp.lpParameters = wszParameters;
 983     sei_tmp.lpDirectory = wszDir;
 984
 985     if (sei_tmp.fMask & (SEE_MASK_ICON | SEE_MASK_HOTKEY |
 986         SEE_MASK_CONNECTNETDRV | SEE_MASK_FLAG_DDEWAIT |
 987         SEE_MASK_DOENVSUBST | SEE_MASK_FLAG_NO_UI | SEE_MASK_UNICODE |
 988         SEE_MASK_NO_CONSOLE | SEE_MASK_ASYNCOK | SEE_MASK_HMONITOR ))
 989     {
 990         FIXME("flags ignored: 0x%08lx\n", sei_tmp.fMask);
 991     }
 992
 993     /* process the IDList */
 994     if (sei_tmp.fMask & SEE_MASK_IDLIST)
 995     {
 996         IShellExecuteHookW* pSEH;
 997
 998         HRESULT hr = SHBindToParent(sei_tmp.lpIDList, &IID_IShellExecuteHookW, (LPVOID*)&pSEH, NULL);
 999
1000         if (SUCCEEDED(hr))
1001         {
1002             hr = IShellExecuteHookW_Execute(pSEH, psei);
1003
1004             IShellExecuteHookW_Release(pSEH);
1005
1006             if (hr == S_OK)
1007                 return TRUE;
1008         }
1009
1010         /* try to translate PIDL directly into the corresponding file system path */
1011         if (SUCCEEDED(SHELL_GetPathFromIDListW(sei_tmp.lpIDList, wszApplicationName/*sei_tmp.lpFile*/, sizeof(wszApplicationName)/sizeof(WCHAR))))
1012         {
1013             sei_tmp.lpIDList = NULL;
1014             sei_tmp.fMask &= ~SEE_MASK_INVOKEIDLIST;
1015         }
1016
1017         TRACE("-- idlist=%p (%s)\n", sei_tmp.lpIDList, debugstr_w(wszApplicationName));
1018     }
1019
1020     if (sei_tmp.fMask & (SEE_MASK_CLASSNAME | SEE_MASK_CLASSKEY))
1021     {
1022         /* launch a document by fileclass like 'WordPad.Document.1' */
1023         /* the Commandline contains 'c:\Path\wordpad.exe "%1"' */
1024         /* FIXME: wszParameters should not be of a fixed size. Fixed to 1024, MAX_PATH is way too short! */
1025         HCR_GetExecuteCommandW((sei_tmp.fMask & SEE_MASK_CLASSKEY)? sei_tmp.hkeyClass: NULL,
1026                                (sei_tmp.fMask & SEE_MASK_CLASSNAME)? sei_tmp.lpClass: NULL,
1027                                (sei_tmp.lpVerb)? sei_tmp.lpVerb: wszOpen,
1028                                wszParameters/*sei_tmp.lpParameters*/, sizeof(wszParameters)/sizeof(WCHAR));
1029
1030         /* FIXME: get the extension of lpFile, check if it fits to the lpClass */
1031         TRACE("SEE_MASK_CLASSNAME->'%s', doc->'%s'\n", debugstr_w(sei_tmp.lpParameters), debugstr_w(sei_tmp.lpFile));
1032
1033         buffer[0] = '\0';
1034
1035         if (!SHELL_ArgifyW(buffer, sizeof(buffer)/sizeof(WCHAR), sei_tmp.lpParameters, sei_tmp.lpFile, sei_tmp.lpIDList, NULL) && sei_tmp.lpFile[0])
1036         {
1037             strcatW(buffer, wExtLnk);
1038             strcatW(buffer, sei_tmp.lpFile);
1039         }
1040
1041         retval = execfunc(buffer, NULL, FALSE, &sei_tmp, psei);
1042         if (retval > 32)
1043             return TRUE;
1044         else
1045             return FALSE;
1046     }
1047
1048
1049     /* resolve shell shortcuts */
1050     ext = PathFindExtensionW(sei_tmp.lpFile);
1051
1052     if (ext && !strcmpiW(ext, wExtLnk)) /* or check for: shell_attribs & SFGAO_LINK */
1053     {
1054         HRESULT hr;
1055
1056         /* expand paths before reading shell link */
1057         if (ExpandEnvironmentStringsW(sei_tmp.lpFile, buffer, MAX_PATH))
1058             lstrcpyW(wszApplicationName/*sei_tmp.lpFile*/, buffer);
1059
1060         if (*sei_tmp.lpParameters)
1061             if (ExpandEnvironmentStringsW(sei_tmp.lpParameters, buffer, MAX_PATH))
1062                 lstrcpyW(wszParameters/*sei_tmp.lpParameters*/, buffer);
1063
1064         hr = SHELL_ResolveShortCutW((LPWSTR)sei_tmp.lpFile, (LPWSTR)sei_tmp.lpParameters, (LPWSTR)sei_tmp.lpDirectory,
1065                                             sei_tmp.hwnd, sei_tmp.lpVerb?sei_tmp.lpVerb:wszEmpty, &sei_tmp.nShow, (LPITEMIDLIST*)&sei_tmp.lpIDList);
1066
1067         if (psei->lpIDList)
1068             psei->fMask |= SEE_MASK_IDLIST; //@@ nicht sei_tmp.fMask ?!
1069
1070         if (SUCCEEDED(hr))
1071         {
1072             /* repeat IDList processing if needed */
1073             if (sei_tmp.fMask & SEE_MASK_IDLIST)
1074             {
1075                 IShellExecuteHookW* pSEH;
1076
1077                 HRESULT hr = SHBindToParent(sei_tmp.lpIDList, &IID_IShellExecuteHookW, (LPVOID*)&pSEH, NULL);
1078
1079                 if (SUCCEEDED(hr))
1080                 {
1081                     hr = IShellExecuteHookW_Execute(pSEH, psei);
1082
1083                     IShellExecuteHookW_Release(pSEH);
1084
1085                     if (hr == S_OK)
1086                         return TRUE;
1087                 }
1088
1089                 TRACE("-- idlist=%p (%s)\n", debugstr_w(sei_tmp.lpIDList), debugstr_w(sei_tmp.lpFile));
1090             }
1091         }
1092     }
1093
1094
1095     /* Has the IDList not yet been translated? */
1096     if (sei_tmp.fMask & SEE_MASK_IDLIST)
1097     {
1098         /* last chance to translate IDList: now also allow CLSID paths */
1099         if (SUCCEEDED(SHELL_GetPathFromIDListForExecuteW(sei_tmp.lpIDList, buffer, sizeof(buffer)))) {
1100             if (buffer[0]==':' && buffer[1]==':') {
1101                 /* open shell folder for the specified class GUID */
1102                 strcpyW(wszParameters, buffer);
1103                 strcpyW(wszApplicationName, wExplorer);
1104
1105                 sei_tmp.fMask &= ~SEE_MASK_INVOKEIDLIST;
1106             } else if (HCR_GetExecuteCommandW(0, wszFolder, sei_tmp.lpVerb?sei_tmp.lpVerb:wszOpen, buffer, sizeof(buffer))) {
1107                 SHELL_ArgifyW(wszApplicationName, sizeof(wszApplicationName)/sizeof(WCHAR), buffer, NULL, sei_tmp.lpIDList, NULL);
1108
1109                 sei_tmp.fMask &= ~SEE_MASK_INVOKEIDLIST;
1110             }
1111         }
1112     }
1113
1114
1115     /* expand environment strings */
1116
1117     if (ExpandEnvironmentStringsW(sei_tmp.lpFile, buffer, MAX_PATH))
1118         lstrcpyW(wszApplicationName/*sei_tmp.lpFile*/, buffer);
1119
1120     if (*sei_tmp.lpParameters)
1121         if (ExpandEnvironmentStringsW(sei_tmp.lpParameters, buffer, MAX_PATH))
1122             lstrcpyW(wszParameters/*sei_tmp.lpParameters*/, buffer);
1123
1124     if (*sei_tmp.lpDirectory)
1125         if (ExpandEnvironmentStringsW(sei_tmp.lpDirectory, buffer, MAX_PATH))
1126             lstrcpyW(wszDir/*sei_tmp.lpDirectory*/, buffer);
1127
1128     /* Else, try to execute the filename */
1129     TRACE("execute:'%s','%s','%s'\n", debugstr_w(wszApplicationName), debugstr_w(wszCommandline), debugstr_w(wszDir));
1130
1131
1132     /* separate out command line arguments from executable file name */
1133     if (!*sei_tmp.lpParameters) {
1134         /* If the executable path is quoted, handle the rest of the command line as parameters. */
1135         if (sei_tmp.lpFile[0] == '"') {
1136             LPWSTR src = wszApplicationName/*sei_tmp.lpFile*/ + 1;
1137             LPWSTR dst = wfileName;
1138             LPWSTR end;
1139
1140             /* copy the unquoted executabe path to 'wfileName' */
1141             while(*src && *src!='"')
1142                 *dst++ = *src++;
1143
1144             *dst = '\0';
1145
1146             if (*src == '"') {
1147                 end = ++src;
1148
1149                 while(isspace(*src))
1150                     ++src;
1151             } else
1152                 end = src;
1153
1154             /* copy the parameter string to 'wszParameters' */
1155             strcpyW(wszParameters, src);
1156
1157             /* terminate previous command string after the quote character */
1158             *end = '\0';
1159         }
1160         else
1161         {
1162             /* If the executable name is not quoted, we have to use this search loop here,
1163                that in CreateProcess() is not sufficient because it does not handle shell links. */
1164             WCHAR buffer[MAX_PATH], xlpFile[MAX_PATH];
1165             LPWSTR space, s;
1166
1167             LPWSTR beg = wszApplicationName/*sei_tmp.lpFile*/;
1168             for(s=beg; (space=strchrW(s, ' ')); s=space+1) {
1169                 int idx = space-sei_tmp.lpFile;
1170                 strncpyW(buffer, sei_tmp.lpFile, idx);
1171                 buffer[idx] = '\0';
1172
1173                 /*FIXME This finds directory paths if the targeted file name contains spaces. */
1174                 if (SearchPathW(*sei_tmp.lpDirectory? sei_tmp.lpDirectory: NULL, buffer, wszExe, sizeof(xlpFile), xlpFile, NULL))
1175                 {
1176                     /* separate out command from parameter string */
1177                     LPCWSTR p = space + 1;
1178
1179                     while(isspaceW(*p))
1180                         ++p;
1181
1182                     strcpyW(wszParameters, p);
1183                     *space = '\0';
1184
1185                     break;
1186                 }
1187             }
1188
1189             strcpyW(wfileName, sei_tmp.lpFile);
1190         }
1191     } else
1192         strcpyW(wfileName, sei_tmp.lpFile);
1193
1194     lpFile = wfileName;
1195
1196     if (sei_tmp.lpParameters[0]) {
1197         strcatW(wszApplicationName/*sei_tmp.lpFile*/, wSpace);
1198         strcatW(wszApplicationName/*sei_tmp.lpFile*/, sei_tmp.lpParameters);
1199     }
1200
1201     retval = execfunc(sei_tmp.lpFile, NULL, FALSE, &sei_tmp, psei);
1202     if (retval > 32)
1203     {
1204         /* Now, that we have successfully launched a process, we can free the PIDL.
1205         It may have been used before for %I command line options. */
1206         if (sei_tmp.lpIDList!=psei->lpIDList && sei_tmp.lpIDList)
1207             SHFree(sei_tmp.lpIDList);
1208
1209         TRACE("execfunc: retval=%d psei->hInstApp=%p\n", retval, psei->hInstApp);
1210         return TRUE;
1211     }
1212
1213     /* Else, try to find the executable */
1214     buffer[0] = '\0';
1215     retval = SHELL_FindExecutable(*sei_tmp.lpDirectory? sei_tmp.lpDirectory: NULL, lpFile, sei_tmp.lpVerb, buffer, 1024, wszProtocol, &env, sei_tmp.lpIDList, sei_tmp.lpParameters);
1216
1217     if (retval > 32)  /* Found */
1218     {
1219         WCHAR wszQuotedCmd[MAX_PATH+2];
1220         /* Must quote to handle case where 'buffer' contains spaces,
1221          * else security hole if malicious user creates executable file "C:\\Program"
1222          *
1223          * FIXME: If we don't have set explicitly command line arguments, we must first
1224          * split executable path from optional command line arguments. Otherwise we would quote
1225          * the complete string with executable path _and_ arguments, which is not what we want.
1226          */
1227         strcpyW(wszQuotedCmd, wQuote);
1228         strcatW(wszQuotedCmd, buffer);
1229         strcatW(wszQuotedCmd, wQuote);
1230
1231         if (*sei_tmp.lpParameters) {
1232             strcatW(wszQuotedCmd, wSpace);
1233             strcatW(wszQuotedCmd, sei_tmp.lpParameters);
1234         }
1235
1236         TRACE("%s/%s => %s/%s\n", debugstr_w(wszApplicationName), debugstr_w(buffer), debugstr_w(wszQuotedCmd), debugstr_w(wszProtocol));
1237
1238         if (*wszProtocol)
1239             retval = execute_from_key(wszProtocol, lpFile, env, sei_tmp.lpParameters, execfunc, &sei_tmp, psei);
1240         else
1241             retval = execfunc(wszQuotedCmd, env, FALSE, &sei_tmp, psei);
1242
1243         if (env) HeapFree( GetProcessHeap(), 0, env );
1244     }
1245     else if (PathIsURLW((LPWSTR)lpFile))    /* File not found, check for URL */
1246     {
1247         static const WCHAR wszShell[] = {'\\','s','h','e','l','l','\\',0};
1248         static const WCHAR wCommand[] = {'\\','c','o','m','m','a','n','d',0};
1249         LPWSTR lpstrRes;
1250         INT iSize;
1251
1252         lpstrRes = strchrW(lpFile, ':');
1253         if (lpstrRes)
1254             iSize = lpstrRes - lpFile;
1255         else
1256             iSize = strlenW(lpFile);
1257
1258         TRACE("Got URL: %s\n", debugstr_w(lpFile));
1259         /* Looking for ...protocol\shell\<verb>\command */
1260         strncpyW(wszProtocol, lpFile, iSize);
1261         wszProtocol[iSize] = '\0';
1262         strcatW(wszProtocol, wszShell);
1263         strcatW(wszProtocol, sei_tmp.lpVerb? sei_tmp.lpVerb: wszOpen);
1264         strcatW(wszProtocol, wCommand);
1265
1266         /* Remove File Protocol from lpFile */
1267         /* In the case file://path/file     */
1268         if (!strncmpiW(lpFile, wFile, iSize))
1269         {
1270             lpFile += iSize;
1271             while (*lpFile == ':') lpFile++;
1272         }
1273
1274         retval = execute_from_key(wszProtocol, lpFile, NULL, sei_tmp.lpParameters, execfunc, &sei_tmp, psei);
1275     }
1276     /* Check if file specified is in the form www.??????.*** */
1277     else if (!strncmpiW(lpFile, wWww, 3))
1278     {
1279         /* if so, append lpFile http:// and call ShellExecute */
1280         WCHAR lpstrTmpFile[256];
1281         strcpyW(lpstrTmpFile, wHttp);
1282         strcatW(lpstrTmpFile, lpFile);
1283         retval = (UINT)ShellExecuteW(sei_tmp.hwnd, sei_tmp.lpVerb, lpstrTmpFile, NULL, NULL, 0);
1284     }
1285
1286     /* Now we can free the PIDL. It may have been used before for %I command line options. */
1287     if (sei_tmp.lpIDList!=psei->lpIDList && sei_tmp.lpIDList)
1288         SHFree(sei_tmp.lpIDList);
1289
1290     TRACE("retval %u\n", retval);
1291
1292     if (retval <= 32)
1293     {
1294         psei->hInstApp = (HINSTANCE)retval;
1295         return FALSE;
1296     }
1297
1298     psei->hInstApp = (HINSTANCE)33;
1299     return TRUE;
1300 }
1301
1302 /*************************************************************************
1303  * ShellExecuteA                        [SHELL32.290]
1304  */
1305 HINSTANCE WINAPI ShellExecuteA(HWND hWnd, LPCSTR lpOperation, LPCSTR lpFile,
1306                                LPCSTR lpParameters, LPCSTR lpDirectory, INT iShowCmd)
1307 {
1308     SHELLEXECUTEINFOA sei;
1309     HANDLE hProcess = 0;
1310
1311     TRACE("\n");
1312     sei.cbSize = sizeof(sei);
1313     sei.fMask = 0;
1314     sei.hwnd = hWnd;
1315     sei.lpVerb = lpOperation;
1316     sei.lpFile = lpFile;
1317     sei.lpParameters = lpParameters;
1318     sei.lpDirectory = lpDirectory;
1319     sei.nShow = iShowCmd;
1320     sei.lpIDList = 0;
1321     sei.lpClass = 0;
1322     sei.hkeyClass = 0;
1323     sei.dwHotKey = 0;
1324     sei.hProcess = hProcess;
1325
1326     ShellExecuteExA (&sei);
1327     return sei.hInstApp;
1328 }
1329
1330 /*************************************************************************
1331  * ShellExecuteEx                               [SHELL32.291]
1332  *
1333  */
1334 BOOL WINAPI ShellExecuteExAW (LPVOID sei)
1335 {
1336     if (SHELL_OsIsUnicode())
1337         return ShellExecuteExW32 (sei, SHELL_ExecuteW);
1338     return ShellExecuteExA (sei);
1339 }
1340
1341 /*************************************************************************
1342  * ShellExecuteExA                              [SHELL32.292]
1343  *
1344  */
1345 BOOL WINAPI ShellExecuteExA (LPSHELLEXECUTEINFOA sei)
1346 {
1347     SHELLEXECUTEINFOW seiW;
1348     BOOL ret;
1349     WCHAR *wVerb = NULL, *wFile = NULL, *wParameters = NULL, *wDirectory = NULL, *wClass = NULL;
1350
1351     TRACE("%p\n", sei);
1352
1353     memcpy(&seiW, sei, sizeof(SHELLEXECUTEINFOW));
1354
1355     if (sei->lpVerb)
1356         seiW.lpVerb = __SHCloneStrAtoW(&wVerb, sei->lpVerb);
1357
1358     if (sei->lpFile)
1359         seiW.lpFile = __SHCloneStrAtoW(&wFile, sei->lpFile);
1360
1361     if (sei->lpParameters)
1362         seiW.lpParameters = __SHCloneStrAtoW(&wParameters, sei->lpParameters);
1363
1364     if (sei->lpDirectory)
1365         seiW.lpDirectory = __SHCloneStrAtoW(&wDirectory, sei->lpDirectory);
1366
1367     if ((sei->fMask & SEE_MASK_CLASSNAME) && sei->lpClass)
1368         seiW.lpClass = __SHCloneStrAtoW(&wClass, sei->lpClass);
1369     else
1370         seiW.lpClass = NULL;
1371
1372     ret = ShellExecuteExW32 (&seiW, SHELL_ExecuteW);
1373
1374     sei->hInstApp = seiW.hInstApp;
1375
1376     if (wVerb) SHFree(wVerb);
1377     if (wFile) SHFree(wFile);
1378     if (wParameters) SHFree(wParameters);
1379     if (wDirectory) SHFree(wDirectory);
1380     if (wClass) SHFree(wClass);
1381
1382     return ret;
1383 }
1384
1385 /*************************************************************************
1386  * ShellExecuteExW                              [SHELL32.293]
1387  *
1388  */
1389 BOOL WINAPI ShellExecuteExW (LPSHELLEXECUTEINFOW sei)
1390 {
1391     return  ShellExecuteExW32 (sei, SHELL_ExecuteW);
1392 }
1393
1394 /*************************************************************************
1395  * ShellExecuteW                        [SHELL32.294]
1396  * from shellapi.h
1397  * WINSHELLAPI HINSTANCE APIENTRY ShellExecuteW(HWND hwnd, LPCWSTR lpOperation,
1398  * LPCWSTR lpFile, LPCWSTR lpParameters, LPCWSTR lpDirectory, INT nShowCmd);
1399  */
1400 HINSTANCE WINAPI ShellExecuteW(HWND hwnd, LPCWSTR lpOperation, LPCWSTR lpFile,
1401                                LPCWSTR lpParameters, LPCWSTR lpDirectory, INT nShowCmd)
1402 {
1403     SHELLEXECUTEINFOW sei;
1404
1405     TRACE("\n");
1406     sei.cbSize = sizeof(sei);
1407     sei.fMask = 0;
1408     sei.hwnd = hwnd;
1409     sei.lpVerb = lpOperation;
1410     sei.lpFile = lpFile;
1411     sei.lpParameters = lpParameters;
1412     sei.lpDirectory = lpDirectory;
1413     sei.nShow = nShowCmd;
1414     sei.lpIDList = 0;
1415     sei.lpClass = 0;
1416     sei.hkeyClass = 0;
1417     sei.dwHotKey = 0;
1418     sei.hProcess = 0;
1419
1420     ShellExecuteExW32 (&sei, SHELL_ExecuteW);
1421     return sei.hInstApp;
1422 }