loader/module.c

   1 /*
   2  * Modules
   3  *
   4  * Copyright 1995 Alexandre Julliard
   5  */
   6
   7 #include <assert.h>
   8 #include <fcntl.h>
   9 #include <stdlib.h>
  10 #include <stdio.h>
  11 #include <string.h>
  12 #include <sys/types.h>
  13 #include <unistd.h>
  14 #include "wine/winbase16.h"
  15 #include "winerror.h"
  16 #include "heap.h"
  17 #include "file.h"
  18 #include "module.h"
  19 #include "debugtools.h"
  20 #include "wine/server.h"
  21
  22 DEFAULT_DEBUG_CHANNEL(module);
  23 DECLARE_DEBUG_CHANNEL(win32);
  24 DECLARE_DEBUG_CHANNEL(loaddll);
  25
  26 WINE_MODREF *MODULE_modref_list = NULL;
  27
  28 static WINE_MODREF *exe_modref;
  29 static int free_lib_count;   /* recursion depth of FreeLibrary calls */
  30 static int process_detaching;  /* set on process detach to avoid deadlocks with thread detach */
  31
  32 static CRITICAL_SECTION loader_section = CRITICAL_SECTION_INIT( "loader_section" );
  33
  34 /***********************************************************************
  35  *           wait_input_idle
  36  *
  37  * Wrapper to call WaitForInputIdle USER function
  38  */
  39 typedef DWORD (WINAPI *WaitForInputIdle_ptr)( HANDLE hProcess, DWORD dwTimeOut );
  40
  41 static DWORD wait_input_idle( HANDLE process, DWORD timeout )
  42 {
  43     HMODULE mod = GetModuleHandleA( "user32.dll" );
  44     if (mod)
  45     {
  46         WaitForInputIdle_ptr ptr = (WaitForInputIdle_ptr)GetProcAddress( mod, "WaitForInputIdle" );
  47         if (ptr) return ptr( process, timeout );
  48     }
  49     return 0;
  50 }
  51
  52
  53 /*************************************************************************
  54  *              MODULE32_LookupHMODULE
  55  * looks for the referenced HMODULE in the current process
  56  * NOTE: Assumes that the process critical section is held!
  57  */
  58 static WINE_MODREF *MODULE32_LookupHMODULE( HMODULE hmod )
  59 {
  60     WINE_MODREF *wm;
  61
  62     if (!hmod)
  63         return exe_modref;
  64
  65     if (!HIWORD(hmod)) {
  66         ERR("tried to lookup 0x%04x in win32 module handler!\n",hmod);
  67         SetLastError( ERROR_INVALID_HANDLE );
  68         return NULL;
  69     }
  70     for ( wm = MODULE_modref_list; wm; wm=wm->next )
  71         if (wm->module == hmod)
  72             return wm;
  73     SetLastError( ERROR_INVALID_HANDLE );
  74     return NULL;
  75 }
  76
  77 /*************************************************************************
  78  *              MODULE_AllocModRef
  79  *
  80  * Allocate a WINE_MODREF structure and add it to the process list
  81  * NOTE: Assumes that the process critical section is held!
  82  */
  83 WINE_MODREF *MODULE_AllocModRef( HMODULE hModule, LPCSTR filename )
  84 {
  85     WINE_MODREF *wm;
  86
  87     DWORD long_len = strlen( filename );
  88     DWORD short_len = GetShortPathNameA( filename, NULL, 0 );
  89
  90     if ((wm = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY,
  91                          sizeof(*wm) + long_len + short_len + 1 )))
  92     {
  93         wm->module = hModule;
  94         wm->tlsindex = -1;
  95
  96         wm->filename = wm->data;
  97         memcpy( wm->filename, filename, long_len + 1 );
  98         if ((wm->modname = strrchr( wm->filename, '\\' ))) wm->modname++;
  99         else wm->modname = wm->filename;
 100
 101         wm->short_filename = wm->filename + long_len + 1;
 102         GetShortPathNameA( wm->filename, wm->short_filename, short_len + 1 );
 103         if ((wm->short_modname = strrchr( wm->short_filename, '\\' ))) wm->short_modname++;
 104         else wm->short_modname = wm->short_filename;
 105
 106         wm->next = MODULE_modref_list;
 107         if (wm->next) wm->next->prev = wm;
 108         MODULE_modref_list = wm;
 109
 110         if (!(PE_HEADER(hModule)->FileHeader.Characteristics & IMAGE_FILE_DLL))
 111         {
 112             if (!exe_modref) exe_modref = wm;
 113             else FIXME( "Trying to load second .EXE file: %s\n", filename );
 114         }
 115     }
 116     return wm;
 117 }
 118
 119 /*************************************************************************
 120  *              MODULE_InitDLL
 121  */
 122 static BOOL MODULE_InitDLL( WINE_MODREF *wm, DWORD type, LPVOID lpReserved )
 123 {
 124     BOOL retv = TRUE;
 125
 126     static LPCSTR typeName[] = { "PROCESS_DETACH", "PROCESS_ATTACH",
 127                                  "THREAD_ATTACH", "THREAD_DETACH" };
 128     assert( wm );
 129
 130     /* Skip calls for modules loaded with special load flags */
 131
 132     if (wm->flags & WINE_MODREF_DONT_RESOLVE_REFS) return TRUE;
 133
 134     TRACE("(%s,%s,%p) - CALL\n", wm->modname, typeName[type], lpReserved );
 135
 136     /* Call the initialization routine */
 137     retv = PE_InitDLL( wm->module, type, lpReserved );
 138
 139     /* The state of the module list may have changed due to the call
 140        to PE_InitDLL. We cannot assume that this module has not been
 141        deleted.  */
 142     TRACE("(%p,%s,%p) - RETURN %d\n", wm, typeName[type], lpReserved, retv );
 143
 144     return retv;
 145 }
 146
 147 /*************************************************************************
 148  *              MODULE_DllProcessAttach
 149  *
 150  * Send the process attach notification to all DLLs the given module
 151  * depends on (recursively). This is somewhat complicated due to the fact that
 152  *
 153  * - we have to respect the module dependencies, i.e. modules implicitly
 154  *   referenced by another module have to be initialized before the module
 155  *   itself can be initialized
 156  *
 157  * - the initialization routine of a DLL can itself call LoadLibrary,
 158  *   thereby introducing a whole new set of dependencies (even involving
 159  *   the 'old' modules) at any time during the whole process
 160  *
 161  * (Note that this routine can be recursively entered not only directly
 162  *  from itself, but also via LoadLibrary from one of the called initialization
 163  *  routines.)
 164  *
 165  * Furthermore, we need to rearrange the main WINE_MODREF list to allow
 166  * the process *detach* notifications to be sent in the correct order.
 167  * This must not only take into account module dependencies, but also
 168  * 'hidden' dependencies created by modules calling LoadLibrary in their
 169  * attach notification routine.
 170  *
 171  * The strategy is rather simple: we move a WINE_MODREF to the head of the
 172  * list after the attach notification has returned.  This implies that the
 173  * detach notifications are called in the reverse of the sequence the attach
 174  * notifications *returned*.
 175  */
 176 BOOL MODULE_DllProcessAttach( WINE_MODREF *wm, LPVOID lpReserved )
 177 {
 178     BOOL retv = TRUE;
 179     int i;
 180
 181     RtlEnterCriticalSection( &loader_section );
 182
 183     if (!wm)
 184     {
 185         wm = exe_modref;
 186         PE_InitTls();
 187     }
 188     assert( wm );
 189
 190     /* prevent infinite recursion in case of cyclical dependencies */
 191     if (    ( wm->flags & WINE_MODREF_MARKER )
 192          || ( wm->flags & WINE_MODREF_PROCESS_ATTACHED ) )
 193         goto done;
 194
 195     TRACE("(%s,%p) - START\n", wm->modname, lpReserved );
 196
 197     /* Tag current MODREF to prevent recursive loop */
 198     wm->flags |= WINE_MODREF_MARKER;
 199
 200     /* Recursively attach all DLLs this one depends on */
 201     for ( i = 0; retv && i < wm->nDeps; i++ )
 202         if ( wm->deps[i] )
 203             retv = MODULE_DllProcessAttach( wm->deps[i], lpReserved );
 204
 205     /* Call DLL entry point */
 206     if ( retv )
 207     {
 208         retv = MODULE_InitDLL( wm, DLL_PROCESS_ATTACH, lpReserved );
 209         if ( retv )
 210             wm->flags |= WINE_MODREF_PROCESS_ATTACHED;
 211     }
 212
 213     /* Re-insert MODREF at head of list */
 214     if ( retv && wm->prev )
 215     {
 216         wm->prev->next = wm->next;
 217         if ( wm->next ) wm->next->prev = wm->prev;
 218
 219         wm->prev = NULL;
 220         wm->next = MODULE_modref_list;
 221         MODULE_modref_list = wm->next->prev = wm;
 222     }
 223
 224     /* Remove recursion flag */
 225     wm->flags &= ~WINE_MODREF_MARKER;
 226
 227     TRACE("(%s,%p) - END\n", wm->modname, lpReserved );
 228
 229  done:
 230     RtlLeaveCriticalSection( &loader_section );
 231     return retv;
 232 }
 233
 234 /*************************************************************************
 235  *              MODULE_DllProcessDetach
 236  *
 237  * Send DLL process detach notifications.  See the comment about calling
 238  * sequence at MODULE_DllProcessAttach.  Unless the bForceDetach flag
 239  * is set, only DLLs with zero refcount are notified.
 240  */
 241 void MODULE_DllProcessDetach( BOOL bForceDetach, LPVOID lpReserved )
 242 {
 243     WINE_MODREF *wm;
 244
 245     RtlEnterCriticalSection( &loader_section );
 246     if (bForceDetach) process_detaching = 1;
 247     do
 248     {
 249         for ( wm = MODULE_modref_list; wm; wm = wm->next )
 250         {
 251             /* Check whether to detach this DLL */
 252             if ( !(wm->flags & WINE_MODREF_PROCESS_ATTACHED) )
 253                 continue;
 254             if ( wm->refCount > 0 && !bForceDetach )
 255                 continue;
 256
 257             /* Call detach notification */
 258             wm->flags &= ~WINE_MODREF_PROCESS_ATTACHED;
 259             MODULE_InitDLL( wm, DLL_PROCESS_DETACH, lpReserved );
 260
 261             /* Restart at head of WINE_MODREF list, as entries might have
 262                been added and/or removed while performing the call ... */
 263             break;
 264         }
 265     } while ( wm );
 266
 267     RtlLeaveCriticalSection( &loader_section );
 268 }
 269
 270 /*************************************************************************
 271  *              MODULE_DllThreadAttach
 272  *
 273  * Send DLL thread attach notifications. These are sent in the
 274  * reverse sequence of process detach notification.
 275  *
 276  */
 277 void MODULE_DllThreadAttach( LPVOID lpReserved )
 278 {
 279     WINE_MODREF *wm;
 280
 281     /* don't do any attach calls if process is exiting */
 282     if (process_detaching) return;
 283     /* FIXME: there is still a race here */
 284
 285     RtlEnterCriticalSection( &loader_section );
 286
 287     PE_InitTls();
 288
 289     for ( wm = MODULE_modref_list; wm; wm = wm->next )
 290         if ( !wm->next )
 291             break;
 292
 293     for ( ; wm; wm = wm->prev )
 294     {
 295         if ( !(wm->flags & WINE_MODREF_PROCESS_ATTACHED) )
 296             continue;
 297         if ( wm->flags & WINE_MODREF_NO_DLL_CALLS )
 298             continue;
 299
 300         MODULE_InitDLL( wm, DLL_THREAD_ATTACH, lpReserved );
 301     }
 302
 303     RtlLeaveCriticalSection( &loader_section );
 304 }
 305
 306 /*************************************************************************
 307  *              MODULE_DllThreadDetach
 308  *
 309  * Send DLL thread detach notifications. These are sent in the
 310  * same sequence as process detach notification.
 311  *
 312  */
 313 void MODULE_DllThreadDetach( LPVOID lpReserved )
 314 {
 315     WINE_MODREF *wm;
 316
 317     /* don't do any detach calls if process is exiting */
 318     if (process_detaching) return;
 319     /* FIXME: there is still a race here */
 320
 321     RtlEnterCriticalSection( &loader_section );
 322
 323     for ( wm = MODULE_modref_list; wm; wm = wm->next )
 324     {
 325         if ( !(wm->flags & WINE_MODREF_PROCESS_ATTACHED) )
 326             continue;
 327         if ( wm->flags & WINE_MODREF_NO_DLL_CALLS )
 328             continue;
 329
 330         MODULE_InitDLL( wm, DLL_THREAD_DETACH, lpReserved );
 331     }
 332
 333     RtlLeaveCriticalSection( &loader_section );
 334 }
 335
 336 /****************************************************************************
 337  *              DisableThreadLibraryCalls (KERNEL32.@)
 338  *
 339  * Don't call DllEntryPoint for DLL_THREAD_{ATTACH,DETACH} if set.
 340  */
 341 BOOL WINAPI DisableThreadLibraryCalls( HMODULE hModule )
 342 {
 343     WINE_MODREF *wm;
 344     BOOL retval = TRUE;
 345
 346     RtlEnterCriticalSection( &loader_section );
 347
 348     wm = MODULE32_LookupHMODULE( hModule );
 349     if ( !wm )
 350         retval = FALSE;
 351     else
 352         wm->flags |= WINE_MODREF_NO_DLL_CALLS;
 353
 354     RtlLeaveCriticalSection( &loader_section );
 355
 356     return retval;
 357 }
 358
 359
 360 /***********************************************************************
 361  *           MODULE_CreateDummyModule
 362  *
 363  * Create a dummy NE module for Win32 or Winelib.
 364  */
 365 HMODULE16 MODULE_CreateDummyModule( LPCSTR filename, HMODULE module32 )
 366 {
 367     HMODULE16 hModule;
 368     NE_MODULE *pModule;
 369     SEGTABLEENTRY *pSegment;
 370     char *pStr,*s;
 371     unsigned int len;
 372     const char* basename;
 373     OFSTRUCT *ofs;
 374     int of_size, size;
 375
 376     /* Extract base filename */
 377     basename = strrchr(filename, '\\');
 378     if (!basename) basename = filename;
 379     else basename++;
 380     len = strlen(basename);
 381     if ((s = strchr(basename, '.'))) len = s - basename;
 382
 383     /* Allocate module */
 384     of_size = sizeof(OFSTRUCT) - sizeof(ofs->szPathName)
 385                     + strlen(filename) + 1;
 386     size = sizeof(NE_MODULE) +
 387                  /* loaded file info */
 388                  ((of_size + 3) & ~3) +
 389                  /* segment table: DS,CS */
 390                  2 * sizeof(SEGTABLEENTRY) +
 391                  /* name table */
 392                  len + 2 +
 393                  /* several empty tables */
 394                  8;
 395
 396     hModule = GlobalAlloc16( GMEM_MOVEABLE | GMEM_ZEROINIT, size );
 397     if (!hModule) return (HMODULE16)11;  /* invalid exe */
 398
 399     FarSetOwner16( hModule, hModule );
 400     pModule = (NE_MODULE *)GlobalLock16( hModule );
 401
 402     /* Set all used entries */
 403     pModule->magic            = IMAGE_OS2_SIGNATURE;
 404     pModule->count            = 1;
 405     pModule->next             = 0;
 406     pModule->flags            = 0;
 407     pModule->dgroup           = 0;
 408     pModule->ss               = 1;
 409     pModule->cs               = 2;
 410     pModule->heap_size        = 0;
 411     pModule->stack_size       = 0;
 412     pModule->seg_count        = 2;
 413     pModule->modref_count     = 0;
 414     pModule->nrname_size      = 0;
 415     pModule->fileinfo         = sizeof(NE_MODULE);
 416     pModule->os_flags         = NE_OSFLAGS_WINDOWS;
 417     pModule->self             = hModule;
 418     pModule->module32         = module32;
 419
 420     /* Set version and flags */
 421     if (module32)
 422     {
 423         pModule->expected_version =
 424             ((PE_HEADER(module32)->OptionalHeader.MajorSubsystemVersion & 0xff) << 8 ) |
 425              (PE_HEADER(module32)->OptionalHeader.MinorSubsystemVersion & 0xff);
 426         pModule->flags |= NE_FFLAGS_WIN32;
 427         if (PE_HEADER(module32)->FileHeader.Characteristics & IMAGE_FILE_DLL)
 428             pModule->flags |= NE_FFLAGS_LIBMODULE | NE_FFLAGS_SINGLEDATA;
 429     }
 430
 431     /* Set loaded file information */
 432     ofs = (OFSTRUCT *)(pModule + 1);
 433     memset( ofs, 0, of_size );
 434     ofs->cBytes = of_size < 256 ? of_size : 255;   /* FIXME */
 435     strcpy( ofs->szPathName, filename );
 436
 437     pSegment = (SEGTABLEENTRY*)((char*)(pModule + 1) + ((of_size + 3) & ~3));
 438     pModule->seg_table = (int)pSegment - (int)pModule;
 439     /* Data segment */
 440     pSegment->size    = 0;
 441     pSegment->flags   = NE_SEGFLAGS_DATA;
 442     pSegment->minsize = 0x1000;
 443     pSegment++;
 444     /* Code segment */
 445     pSegment->flags   = 0;
 446     pSegment++;
 447
 448     /* Module name */
 449     pStr = (char *)pSegment;
 450     pModule->name_table = (int)pStr - (int)pModule;
 451     assert(len<256);
 452     *pStr = len;
 453     lstrcpynA( pStr+1, basename, len+1 );
 454     pStr += len+2;
 455
 456     /* All tables zero terminated */
 457     pModule->res_table = pModule->import_table = pModule->entry_table =
 458                 (int)pStr - (int)pModule;
 459
 460     NE_RegisterModule( pModule );
 461     return hModule;
 462 }
 463
 464
 465 /**********************************************************************
 466  *          MODULE_FindModule
 467  *
 468  * Find a (loaded) win32 module depending on path
 469  *
 470  * RETURNS
 471  *      the module handle if found
 472  *      0 if not
 473  */
 474 WINE_MODREF *MODULE_FindModule(
 475         LPCSTR path     /* [in] pathname of module/library to be found */
 476 ) {
 477     WINE_MODREF *wm;
 478     char dllname[260], *p;
 479
 480     /* Append .DLL to name if no extension present */
 481     strcpy( dllname, path );
 482     if (!(p = strrchr( dllname, '.')) || strchr( p, '/' ) || strchr( p, '\\'))
 483             strcat( dllname, ".DLL" );
 484
 485     for ( wm = MODULE_modref_list; wm; wm = wm->next )
 486     {
 487         if ( !FILE_strcasecmp( dllname, wm->modname ) )
 488             break;
 489         if ( !FILE_strcasecmp( dllname, wm->filename ) )
 490             break;
 491         if ( !FILE_strcasecmp( dllname, wm->short_modname ) )
 492             break;
 493         if ( !FILE_strcasecmp( dllname, wm->short_filename ) )
 494             break;
 495     }
 496
 497     return wm;
 498 }
 499
 500
 501 /* Check whether a file is an OS/2 or a very old Windows executable
 502  * by testing on import of KERNEL.
 503  *
 504  * FIXME: is reading the module imports the only way of discerning
 505  *        old Windows binaries from OS/2 ones ? At least it seems so...
 506  */
 507 static DWORD MODULE_Decide_OS2_OldWin(HANDLE hfile, IMAGE_DOS_HEADER *mz, IMAGE_OS2_HEADER *ne)
 508 {
 509     DWORD currpos = SetFilePointer( hfile, 0, NULL, SEEK_CUR);
 510     DWORD type = SCS_OS216_BINARY;
 511     LPWORD modtab = NULL;
 512     LPSTR nametab = NULL;
 513     DWORD len;
 514     int i;
 515
 516     /* read modref table */
 517     if ( (SetFilePointer( hfile, mz->e_lfanew + ne->ne_modtab, NULL, SEEK_SET ) == -1)
 518       || (!(modtab = HeapAlloc( GetProcessHeap(), 0, ne->ne_cmod*sizeof(WORD))))
 519       || (!(ReadFile(hfile, modtab, ne->ne_cmod*sizeof(WORD), &len, NULL)))
 520       || (len != ne->ne_cmod*sizeof(WORD)) )
 521         goto broken;
 522
 523     /* read imported names table */
 524     if ( (SetFilePointer( hfile, mz->e_lfanew + ne->ne_imptab, NULL, SEEK_SET ) == -1)
 525       || (!(nametab = HeapAlloc( GetProcessHeap(), 0, ne->ne_enttab - ne->ne_imptab)))
 526       || (!(ReadFile(hfile, nametab, ne->ne_enttab - ne->ne_imptab, &len, NULL)))
 527       || (len != ne->ne_enttab - ne->ne_imptab) )
 528         goto broken;
 529
 530     for (i=0; i < ne->ne_cmod; i++)
 531     {
 532         LPSTR module = &nametab[modtab[i]];
 533         TRACE("modref: %.*s\n", module[0], &module[1]);
 534         if (!(strncmp(&module[1], "KERNEL", module[0])))
 535         { /* very old Windows file */
 536             MESSAGE("This seems to be a very old (pre-3.0) Windows executable. Expect crashes, especially if this is a real-mode binary !\n");
 537             type = SCS_WOW_BINARY;
 538             goto good;
 539         }
 540     }
 541
 542 broken:
 543     ERR("Hmm, an error occurred. Is this binary file broken ?\n");
 544
 545 good:
 546     HeapFree( GetProcessHeap(), 0, modtab);
 547     HeapFree( GetProcessHeap(), 0, nametab);
 548     SetFilePointer( hfile, currpos, NULL, SEEK_SET); /* restore filepos */
 549     return type;
 550 }
 551
 552 /***********************************************************************
 553  *           MODULE_GetBinaryType
 554  *
 555  * The GetBinaryType function determines whether a file is executable
 556  * or not and if it is it returns what type of executable it is.
 557  * The type of executable is a property that determines in which
 558  * subsystem an executable file runs under.
 559  *
 560  * Binary types returned:
 561  * SCS_32BIT_BINARY: A Win32 based application
 562  * SCS_DOS_BINARY: An MS-Dos based application
 563  * SCS_WOW_BINARY: A Win16 based application
 564  * SCS_PIF_BINARY: A PIF file that executes an MS-Dos based app
 565  * SCS_POSIX_BINARY: A POSIX based application ( Not implemented )
 566  * SCS_OS216_BINARY: A 16bit OS/2 based application
 567  *
 568  * Returns TRUE if the file is an executable in which case
 569  * the value pointed by lpBinaryType is set.
 570  * Returns FALSE if the file is not an executable or if the function fails.
 571  *
 572  * To do so it opens the file and reads in the header information
 573  * if the extended header information is not present it will
 574  * assume that the file is a DOS executable.
 575  * If the extended header information is present it will
 576  * determine if the file is a 16 or 32 bit Windows executable
 577  * by check the flags in the header.
 578  *
 579  * Note that .COM and .PIF files are only recognized by their
 580  * file name extension; but Windows does it the same way ...
 581  */
 582 static BOOL MODULE_GetBinaryType( HANDLE hfile, LPCSTR filename, LPDWORD lpBinaryType )
 583 {
 584     IMAGE_DOS_HEADER mz_header;
 585     char magic[4], *ptr;
 586     DWORD len;
 587
 588     /* Seek to the start of the file and read the DOS header information.
 589      */
 590     if (    SetFilePointer( hfile, 0, NULL, SEEK_SET ) != -1
 591          && ReadFile( hfile, &mz_header, sizeof(mz_header), &len, NULL )
 592          && len == sizeof(mz_header) )
 593     {
 594         /* Now that we have the header check the e_magic field
 595          * to see if this is a dos image.
 596          */
 597         if ( mz_header.e_magic == IMAGE_DOS_SIGNATURE )
 598         {
 599             BOOL lfanewValid = FALSE;
 600             /* We do have a DOS image so we will now try to seek into
 601              * the file by the amount indicated by the field
 602              * "Offset to extended header" and read in the
 603              * "magic" field information at that location.
 604              * This will tell us if there is more header information
 605              * to read or not.
 606              */
 607             /* But before we do we will make sure that header
 608              * structure encompasses the "Offset to extended header"
 609              * field.
 610              */
 611             if ( (mz_header.e_cparhdr<<4) >= sizeof(IMAGE_DOS_HEADER) )
 612                 if ( ( mz_header.e_crlc == 0 ) ||
 613                      ( mz_header.e_lfarlc >= sizeof(IMAGE_DOS_HEADER) ) )
 614                     if (    mz_header.e_lfanew >= sizeof(IMAGE_DOS_HEADER)
 615                          && SetFilePointer( hfile, mz_header.e_lfanew, NULL, SEEK_SET ) != -1
 616                          && ReadFile( hfile, magic, sizeof(magic), &len, NULL )
 617                          && len == sizeof(magic) )
 618                         lfanewValid = TRUE;
 619
 620             if ( !lfanewValid )
 621             {
 622                 /* If we cannot read this "extended header" we will
 623                  * assume that we have a simple DOS executable.
 624                  */
 625                 *lpBinaryType = SCS_DOS_BINARY;
 626                 return TRUE;
 627             }
 628             else
 629             {
 630                 /* Reading the magic field succeeded so
 631                  * we will try to determine what type it is.
 632                  */
 633                 if ( *(DWORD*)magic      == IMAGE_NT_SIGNATURE )
 634                 {
 635                     /* This is an NT signature.
 636                      */
 637                     *lpBinaryType = SCS_32BIT_BINARY;
 638                     return TRUE;
 639                 }
 640                 else if ( *(WORD*)magic == IMAGE_OS2_SIGNATURE )
 641                 {
 642                     /* The IMAGE_OS2_SIGNATURE indicates that the
 643                      * "extended header is a Windows executable (NE)
 644                      * header."  This can mean either a 16-bit OS/2
 645                      * or a 16-bit Windows or even a DOS program
 646                      * (running under a DOS extender).  To decide
 647                      * which, we'll have to read the NE header.
 648                      */
 649
 650                      IMAGE_OS2_HEADER ne;
 651                      if (    SetFilePointer( hfile, mz_header.e_lfanew, NULL, SEEK_SET ) != -1
 652                           && ReadFile( hfile, &ne, sizeof(ne), &len, NULL )
 653                           && len == sizeof(ne) )
 654                      {
 655                          switch ( ne.ne_exetyp )
 656                          {
 657                          case 2:  *lpBinaryType = SCS_WOW_BINARY;   return TRUE;
 658                          case 5:  *lpBinaryType = SCS_DOS_BINARY;   return TRUE;
 659                          default: *lpBinaryType =
 660                                   MODULE_Decide_OS2_OldWin(hfile, &mz_header, &ne);
 661                                   return TRUE;
 662                          }
 663                      }
 664                      /* Couldn't read header, so abort. */
 665                      return FALSE;
 666                 }
 667                 else
 668                 {
 669                     /* Unknown extended header, but this file is nonetheless
 670                        DOS-executable.
 671                      */
 672                     *lpBinaryType = SCS_DOS_BINARY;
 673                     return TRUE;
 674                 }
 675             }
 676         }
 677     }
 678
 679     /* If we get here, we don't even have a correct MZ header.
 680      * Try to check the file extension for known types ...
 681      */
 682     ptr = strrchr( filename, '.' );
 683     if ( ptr && !strchr( ptr, '\\' ) && !strchr( ptr, '/' ) )
 684     {
 685         if ( !FILE_strcasecmp( ptr, ".COM" ) )
 686         {
 687             *lpBinaryType = SCS_DOS_BINARY;
 688             return TRUE;
 689         }
 690
 691         if ( !FILE_strcasecmp( ptr, ".PIF" ) )
 692         {
 693             *lpBinaryType = SCS_PIF_BINARY;
 694             return TRUE;
 695         }
 696     }
 697
 698     return FALSE;
 699 }
 700
 701 /***********************************************************************
 702  *             GetBinaryTypeA                     [KERNEL32.@]
 703  *             GetBinaryType                      [KERNEL32.@]
 704  */
 705 BOOL WINAPI GetBinaryTypeA( LPCSTR lpApplicationName, LPDWORD lpBinaryType )
 706 {
 707     BOOL ret = FALSE;
 708     HANDLE hfile;
 709
 710     TRACE_(win32)("%s\n", lpApplicationName );
 711
 712     /* Sanity check.
 713      */
 714     if ( lpApplicationName == NULL || lpBinaryType == NULL )
 715         return FALSE;
 716
 717     /* Open the file indicated by lpApplicationName for reading.
 718      */
 719     hfile = CreateFileA( lpApplicationName, GENERIC_READ, FILE_SHARE_READ,
 720                          NULL, OPEN_EXISTING, 0, 0 );
 721     if ( hfile == INVALID_HANDLE_VALUE )
 722         return FALSE;
 723
 724     /* Check binary type
 725      */
 726     ret = MODULE_GetBinaryType( hfile, lpApplicationName, lpBinaryType );
 727
 728     /* Close the file.
 729      */
 730     CloseHandle( hfile );
 731
 732     return ret;
 733 }
 734
 735 /***********************************************************************
 736  *             GetBinaryTypeW                      [KERNEL32.@]
 737  */
 738 BOOL WINAPI GetBinaryTypeW( LPCWSTR lpApplicationName, LPDWORD lpBinaryType )
 739 {
 740     BOOL ret = FALSE;
 741     LPSTR strNew = NULL;
 742
 743     TRACE_(win32)("%s\n", debugstr_w(lpApplicationName) );
 744
 745     /* Sanity check.
 746      */
 747     if ( lpApplicationName == NULL || lpBinaryType == NULL )
 748         return FALSE;
 749
 750     /* Convert the wide string to a ascii string.
 751      */
 752     strNew = HEAP_strdupWtoA( GetProcessHeap(), 0, lpApplicationName );
 753
 754     if ( strNew != NULL )
 755     {
 756         ret = GetBinaryTypeA( strNew, lpBinaryType );
 757
 758         /* Free the allocated string.
 759          */
 760         HeapFree( GetProcessHeap(), 0, strNew );
 761     }
 762
 763     return ret;
 764 }
 765
 766
 767 /***********************************************************************
 768  *           WinExec     (KERNEL.166)
 769  *           WinExec16   (KERNEL32.@)
 770  */
 771 HINSTANCE16 WINAPI WinExec16( LPCSTR lpCmdLine, UINT16 nCmdShow )
 772 {
 773     LPCSTR p, args = NULL;
 774     LPCSTR name_beg, name_end;
 775     LPSTR name, cmdline;
 776     int arglen;
 777     HINSTANCE16 ret;
 778     char buffer[MAX_PATH];
 779
 780     if (*lpCmdLine == '"') /* has to be only one and only at beginning ! */
 781     {
 782       name_beg = lpCmdLine+1;
 783       p = strchr ( lpCmdLine+1, '"' );
 784       if (p)
 785       {
 786           name_end = p;
 787           args = strchr ( p, ' ' );
 788       }
 789       else /* yes, even valid with trailing '"' missing */
 790           name_end = lpCmdLine+strlen(lpCmdLine);
 791     }
 792     else
 793     {
 794       name_beg = lpCmdLine;
 795       args = strchr( lpCmdLine, ' ' );
 796       name_end = args ? args : lpCmdLine+strlen(lpCmdLine);
 797     }
 798
 799     if ((name_beg == lpCmdLine) && (!args))
 800     { /* just use the original cmdline string as file name */
 801         name = (LPSTR)lpCmdLine;
 802     }
 803     else
 804     {
 805         if (!(name = HeapAlloc( GetProcessHeap(), 0, name_end - name_beg + 1 )))
 806             return ERROR_NOT_ENOUGH_MEMORY;
 807         memcpy( name, name_beg, name_end - name_beg );
 808         name[name_end - name_beg] = '\0';
 809     }
 810
 811     if (args)
 812     {
 813         args++;
 814         arglen = strlen(args);
 815         cmdline = HeapAlloc( GetProcessHeap(), 0, 2 + arglen );
 816         cmdline[0] = (BYTE)arglen;
 817         strcpy( cmdline + 1, args );
 818     }
 819     else
 820     {
 821         cmdline = HeapAlloc( GetProcessHeap(), 0, 2 );
 822         cmdline[0] = cmdline[1] = 0;
 823     }
 824
 825     TRACE("name: '%s', cmdline: '%.*s'\n", name, cmdline[0], &cmdline[1]);
 826
 827     if (SearchPathA( NULL, name, ".exe", sizeof(buffer), buffer, NULL ))
 828     {
 829         LOADPARAMS16 params;
 830         WORD showCmd[2];
 831         showCmd[0] = 2;
 832         showCmd[1] = nCmdShow;
 833
 834         params.hEnvironment = 0;
 835         params.cmdLine = MapLS( cmdline );
 836         params.showCmd = MapLS( showCmd );
 837         params.reserved = 0;
 838
 839         ret = LoadModule16( buffer, &params );
 840         UnMapLS( params.cmdLine );
 841         UnMapLS( params.showCmd );
 842     }
 843     else ret = GetLastError();
 844
 845     HeapFree( GetProcessHeap(), 0, cmdline );
 846     if (name != lpCmdLine) HeapFree( GetProcessHeap(), 0, name );
 847
 848     if (ret == 21)  /* 32-bit module */
 849     {
 850         DWORD count;
 851         ReleaseThunkLock( &count );
 852         ret = LOWORD( WinExec( lpCmdLine, nCmdShow ) );
 853         RestoreThunkLock( count );
 854     }
 855     return ret;
 856 }
 857
 858 /***********************************************************************
 859  *           WinExec   (KERNEL32.@)
 860  */
 861 HINSTANCE WINAPI WinExec( LPCSTR lpCmdLine, UINT nCmdShow )
 862 {
 863     PROCESS_INFORMATION info;
 864     STARTUPINFOA startup;
 865     HINSTANCE hInstance;
 866     char *cmdline;
 867
 868     memset( &startup, 0, sizeof(startup) );
 869     startup.cb = sizeof(startup);
 870     startup.dwFlags = STARTF_USESHOWWINDOW;
 871     startup.wShowWindow = nCmdShow;
 872
 873     /* cmdline needs to be writeable for CreateProcess */
 874     if (!(cmdline = HeapAlloc( GetProcessHeap(), 0, strlen(lpCmdLine)+1 ))) return 0;
 875     strcpy( cmdline, lpCmdLine );
 876
 877     if (CreateProcessA( NULL, cmdline, NULL, NULL, FALSE,
 878                         0, NULL, NULL, &startup, &info ))
 879     {
 880         /* Give 30 seconds to the app to come up */
 881         if (wait_input_idle( info.hProcess, 30000 ) == 0xFFFFFFFF)
 882             WARN("WaitForInputIdle failed: Error %ld\n", GetLastError() );
 883         hInstance = (HINSTANCE)33;
 884         /* Close off the handles */
 885         CloseHandle( info.hThread );
 886         CloseHandle( info.hProcess );
 887     }
 888     else if ((hInstance = (HINSTANCE)GetLastError()) >= (HINSTANCE)32)
 889     {
 890         FIXME("Strange error set by CreateProcess: %d\n", hInstance );
 891         hInstance = (HINSTANCE)11;
 892     }
 893     HeapFree( GetProcessHeap(), 0, cmdline );
 894     return hInstance;
 895 }
 896
 897 /**********************************************************************
 898  *          LoadModule    (KERNEL32.@)
 899  */
 900 HINSTANCE WINAPI LoadModule( LPCSTR name, LPVOID paramBlock )
 901 {
 902     LOADPARAMS *params = (LOADPARAMS *)paramBlock;
 903     PROCESS_INFORMATION info;
 904     STARTUPINFOA startup;
 905     HINSTANCE hInstance;
 906     LPSTR cmdline, p;
 907     char filename[MAX_PATH];
 908     BYTE len;
 909
 910     if (!name) return (HINSTANCE)ERROR_FILE_NOT_FOUND;
 911
 912     if (!SearchPathA( NULL, name, ".exe", sizeof(filename), filename, NULL ) &&
 913         !SearchPathA( NULL, name, NULL, sizeof(filename), filename, NULL ))
 914         return (HINSTANCE)GetLastError();
 915
 916     len = (BYTE)params->lpCmdLine[0];
 917     if (!(cmdline = HeapAlloc( GetProcessHeap(), 0, strlen(filename) + len + 2 )))
 918         return (HINSTANCE)ERROR_NOT_ENOUGH_MEMORY;
 919
 920     strcpy( cmdline, filename );
 921     p = cmdline + strlen(cmdline);
 922     *p++ = ' ';
 923     memcpy( p, params->lpCmdLine + 1, len );
 924     p[len] = 0;
 925
 926     memset( &startup, 0, sizeof(startup) );
 927     startup.cb = sizeof(startup);
 928     if (params->lpCmdShow)
 929     {
 930         startup.dwFlags = STARTF_USESHOWWINDOW;
 931         startup.wShowWindow = params->lpCmdShow[1];
 932     }
 933
 934     if (CreateProcessA( filename, cmdline, NULL, NULL, FALSE, 0,
 935                         params->lpEnvAddress, NULL, &startup, &info ))
 936     {
 937         /* Give 30 seconds to the app to come up */
 938         if (wait_input_idle( info.hProcess, 30000 ) ==  0xFFFFFFFF )
 939             WARN("WaitForInputIdle failed: Error %ld\n", GetLastError() );
 940         hInstance = (HINSTANCE)33;
 941         /* Close off the handles */
 942         CloseHandle( info.hThread );
 943         CloseHandle( info.hProcess );
 944     }
 945     else if ((hInstance = (HINSTANCE)GetLastError()) >= (HINSTANCE)32)
 946     {
 947         FIXME("Strange error set by CreateProcess: %d\n", hInstance );
 948         hInstance = (HINSTANCE)11;
 949     }
 950
 951     HeapFree( GetProcessHeap(), 0, cmdline );
 952     return hInstance;
 953 }
 954
 955
 956 /*************************************************************************
 957  *               get_file_name
 958  *
 959  * Helper for CreateProcess: retrieve the file name to load from the
 960  * app name and command line. Store the file name in buffer, and
 961  * return a possibly modified command line.
 962  */
 963 static LPSTR get_file_name( LPCSTR appname, LPSTR cmdline, LPSTR buffer, int buflen )
 964 {
 965     char *name, *pos, *ret = NULL;
 966     const char *p;
 967
 968     /* if we have an app name, everything is easy */
 969
 970     if (appname)
 971     {
 972         /* use the unmodified app name as file name */
 973         lstrcpynA( buffer, appname, buflen );
 974         if (!(ret = cmdline))
 975         {
 976             /* no command-line, create one */
 977             if ((ret = HeapAlloc( GetProcessHeap(), 0, strlen(appname) + 3 )))
 978                 sprintf( ret, "\"%s\"", appname );
 979         }
 980         return ret;
 981     }
 982
 983     if (!cmdline)
 984     {
 985         SetLastError( ERROR_INVALID_PARAMETER );
 986         return NULL;
 987     }
 988
 989     /* first check for a quoted file name */
 990
 991     if ((cmdline[0] == '"') && ((p = strchr( cmdline + 1, '"' ))))
 992     {
 993         int len = p - cmdline - 1;
 994         /* extract the quoted portion as file name */
 995         if (!(name = HeapAlloc( GetProcessHeap(), 0, len + 1 ))) return NULL;
 996         memcpy( name, cmdline + 1, len );
 997         name[len] = 0;
 998
 999         if (SearchPathA( NULL, name, ".exe", buflen, buffer, NULL ) ||
1000             SearchPathA( NULL, name, NULL, buflen, buffer, NULL ))
1001             ret = cmdline;  /* no change necessary */
1002         goto done;
1003     }
1004
1005     /* now try the command-line word by word */
1006
1007     if (!(name = HeapAlloc( GetProcessHeap(), 0, strlen(cmdline) + 1 ))) return NULL;
1008     pos = name;
1009     p = cmdline;
1010
1011     while (*p)
1012     {
1013         do *pos++ = *p++; while (*p && *p != ' ');
1014         *pos = 0;
1015         TRACE("trying '%s'\n", name );
1016         if (SearchPathA( NULL, name, ".exe", buflen, buffer, NULL ) ||
1017             SearchPathA( NULL, name, NULL, buflen, buffer, NULL ))
1018         {
1019             ret = cmdline;
1020             break;
1021         }
1022     }
1023
1024     if (!ret || !strchr( name, ' ' )) goto done;  /* no change necessary */
1025
1026     /* now build a new command-line with quotes */
1027
1028     if (!(ret = HeapAlloc( GetProcessHeap(), 0, strlen(cmdline) + 3 ))) goto done;
1029     sprintf( ret, "\"%s\"%s", name, p );
1030
1031  done:
1032     HeapFree( GetProcessHeap(), 0, name );
1033     return ret;
1034 }
1035
1036
1037 /**********************************************************************
1038  *       CreateProcessA          (KERNEL32.@)
1039  */
1040 BOOL WINAPI CreateProcessA( LPCSTR lpApplicationName, LPSTR lpCommandLine,
1041                             LPSECURITY_ATTRIBUTES lpProcessAttributes,
1042                             LPSECURITY_ATTRIBUTES lpThreadAttributes,
1043                             BOOL bInheritHandles, DWORD dwCreationFlags,
1044                             LPVOID lpEnvironment, LPCSTR lpCurrentDirectory,
1045                             LPSTARTUPINFOA lpStartupInfo,
1046                             LPPROCESS_INFORMATION lpProcessInfo )
1047 {
1048     BOOL retv = FALSE;
1049     HANDLE hFile;
1050     DWORD type;
1051     char name[MAX_PATH];
1052     LPSTR tidy_cmdline;
1053
1054     /* Process the AppName and/or CmdLine to get module name and path */
1055
1056     TRACE("app %s cmdline %s\n", debugstr_a(lpApplicationName), debugstr_a(lpCommandLine) );
1057
1058     if (!(tidy_cmdline = get_file_name( lpApplicationName, lpCommandLine, name, sizeof(name) )))
1059         return FALSE;
1060
1061     /* Warn if unsupported features are used */
1062
1063     if (dwCreationFlags & NORMAL_PRIORITY_CLASS)
1064         FIXME("(%s,...): NORMAL_PRIORITY_CLASS ignored\n", name);
1065     if (dwCreationFlags & IDLE_PRIORITY_CLASS)
1066         FIXME("(%s,...): IDLE_PRIORITY_CLASS ignored\n", name);
1067     if (dwCreationFlags & HIGH_PRIORITY_CLASS)
1068         FIXME("(%s,...): HIGH_PRIORITY_CLASS ignored\n", name);
1069     if (dwCreationFlags & REALTIME_PRIORITY_CLASS)
1070         FIXME("(%s,...): REALTIME_PRIORITY_CLASS ignored\n", name);
1071     if (dwCreationFlags & CREATE_NEW_PROCESS_GROUP)
1072         FIXME("(%s,...): CREATE_NEW_PROCESS_GROUP ignored\n", name);
1073     if (dwCreationFlags & CREATE_UNICODE_ENVIRONMENT)
1074         FIXME("(%s,...): CREATE_UNICODE_ENVIRONMENT ignored\n", name);
1075     if (dwCreationFlags & CREATE_SEPARATE_WOW_VDM)
1076         FIXME("(%s,...): CREATE_SEPARATE_WOW_VDM ignored\n", name);
1077     if (dwCreationFlags & CREATE_SHARED_WOW_VDM)
1078         FIXME("(%s,...): CREATE_SHARED_WOW_VDM ignored\n", name);
1079     if (dwCreationFlags & CREATE_DEFAULT_ERROR_MODE)
1080         FIXME("(%s,...): CREATE_DEFAULT_ERROR_MODE ignored\n", name);
1081     if (dwCreationFlags & CREATE_NO_WINDOW)
1082         FIXME("(%s,...): CREATE_NO_WINDOW ignored\n", name);
1083     if (dwCreationFlags & PROFILE_USER)
1084         FIXME("(%s,...): PROFILE_USER ignored\n", name);
1085     if (dwCreationFlags & PROFILE_KERNEL)
1086         FIXME("(%s,...): PROFILE_KERNEL ignored\n", name);
1087     if (dwCreationFlags & PROFILE_SERVER)
1088         FIXME("(%s,...): PROFILE_SERVER ignored\n", name);
1089     if (lpStartupInfo->lpDesktop)
1090         FIXME("(%s,...): lpStartupInfo->lpDesktop %s ignored\n",
1091                       name, debugstr_a(lpStartupInfo->lpDesktop));
1092     if (lpStartupInfo->lpTitle)
1093         FIXME("(%s,...): lpStartupInfo->lpTitle %s ignored\n",
1094                       name, lpStartupInfo->lpTitle);
1095     if (lpStartupInfo->dwFlags & STARTF_USECOUNTCHARS)
1096         FIXME("(%s,...): STARTF_USECOUNTCHARS (%ld,%ld) ignored\n",
1097                       name, lpStartupInfo->dwXCountChars, lpStartupInfo->dwYCountChars);
1098     if (lpStartupInfo->dwFlags & STARTF_USEFILLATTRIBUTE)
1099         FIXME("(%s,...): STARTF_USEFILLATTRIBUTE %lx ignored\n",
1100                       name, lpStartupInfo->dwFillAttribute);
1101     if (lpStartupInfo->dwFlags & STARTF_RUNFULLSCREEN)
1102         FIXME("(%s,...): STARTF_RUNFULLSCREEN ignored\n", name);
1103     if (lpStartupInfo->dwFlags & STARTF_FORCEONFEEDBACK)
1104         FIXME("(%s,...): STARTF_FORCEONFEEDBACK ignored\n", name);
1105     if (lpStartupInfo->dwFlags & STARTF_FORCEOFFFEEDBACK)
1106         FIXME("(%s,...): STARTF_FORCEOFFFEEDBACK ignored\n", name);
1107     if (lpStartupInfo->dwFlags & STARTF_USEHOTKEY)
1108         FIXME("(%s,...): STARTF_USEHOTKEY ignored\n", name);
1109
1110     /* Open file and determine executable type */
1111
1112     hFile = CreateFileA( name, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, 0, 0 );
1113     if (hFile == INVALID_HANDLE_VALUE) goto done;
1114
1115     if ( !MODULE_GetBinaryType( hFile, name, &type ) )
1116     {
1117         CloseHandle( hFile );
1118         retv = PROCESS_Create( 0, name, tidy_cmdline, lpEnvironment,
1119                                lpProcessAttributes, lpThreadAttributes,
1120                                bInheritHandles, dwCreationFlags,
1121                                lpStartupInfo, lpProcessInfo, lpCurrentDirectory );
1122         goto done;
1123     }
1124
1125     /* Create process */
1126
1127     switch ( type )
1128     {
1129     case SCS_32BIT_BINARY:
1130     case SCS_WOW_BINARY:
1131     case SCS_DOS_BINARY:
1132         retv = PROCESS_Create( hFile, name, tidy_cmdline, lpEnvironment,
1133                                lpProcessAttributes, lpThreadAttributes,
1134                                bInheritHandles, dwCreationFlags,
1135                                lpStartupInfo, lpProcessInfo, lpCurrentDirectory);
1136         break;
1137
1138     case SCS_PIF_BINARY:
1139     case SCS_POSIX_BINARY:
1140     case SCS_OS216_BINARY:
1141         FIXME("Unsupported executable type: %ld\n", type );
1142         /* fall through */
1143
1144     default:
1145         SetLastError( ERROR_BAD_FORMAT );
1146         break;
1147     }
1148     CloseHandle( hFile );
1149
1150  done:
1151     if (tidy_cmdline != lpCommandLine) HeapFree( GetProcessHeap(), 0, tidy_cmdline );
1152     return retv;
1153 }
1154
1155 /**********************************************************************
1156  *       CreateProcessW          (KERNEL32.@)
1157  * NOTES
1158  *  lpReserved is not converted
1159  */
1160 BOOL WINAPI CreateProcessW( LPCWSTR lpApplicationName, LPWSTR lpCommandLine,
1161                                 LPSECURITY_ATTRIBUTES lpProcessAttributes,
1162                                 LPSECURITY_ATTRIBUTES lpThreadAttributes,
1163                                 BOOL bInheritHandles, DWORD dwCreationFlags,
1164                                 LPVOID lpEnvironment, LPCWSTR lpCurrentDirectory,
1165                                 LPSTARTUPINFOW lpStartupInfo,
1166                                 LPPROCESS_INFORMATION lpProcessInfo )
1167 {   BOOL ret;
1168     STARTUPINFOA StartupInfoA;
1169
1170     LPSTR lpApplicationNameA = HEAP_strdupWtoA (GetProcessHeap(),0,lpApplicationName);
1171     LPSTR lpCommandLineA = HEAP_strdupWtoA (GetProcessHeap(),0,lpCommandLine);
1172     LPSTR lpCurrentDirectoryA = HEAP_strdupWtoA (GetProcessHeap(),0,lpCurrentDirectory);
1173
1174     memcpy (&StartupInfoA, lpStartupInfo, sizeof(STARTUPINFOA));
1175     StartupInfoA.lpDesktop = HEAP_strdupWtoA (GetProcessHeap(),0,lpStartupInfo->lpDesktop);
1176     StartupInfoA.lpTitle = HEAP_strdupWtoA (GetProcessHeap(),0,lpStartupInfo->lpTitle);
1177
1178     TRACE_(win32)("(%s,%s,...)\n", debugstr_w(lpApplicationName), debugstr_w(lpCommandLine));
1179
1180     if (lpStartupInfo->lpReserved)
1181       FIXME_(win32)("StartupInfo.lpReserved is used, please report (%s)\n", debugstr_w(lpStartupInfo->lpReserved));
1182
1183     ret = CreateProcessA(  lpApplicationNameA,  lpCommandLineA,
1184                              lpProcessAttributes, lpThreadAttributes,
1185                              bInheritHandles, dwCreationFlags,
1186                              lpEnvironment, lpCurrentDirectoryA,
1187                              &StartupInfoA, lpProcessInfo );
1188
1189     HeapFree( GetProcessHeap(), 0, lpCurrentDirectoryA );
1190     HeapFree( GetProcessHeap(), 0, lpCommandLineA );
1191     HeapFree( GetProcessHeap(), 0, StartupInfoA.lpDesktop );
1192     HeapFree( GetProcessHeap(), 0, StartupInfoA.lpTitle );
1193
1194     return ret;
1195 }
1196
1197 /***********************************************************************
1198  *              GetModuleHandleA         (KERNEL32.@)
1199  *              GetModuleHandle32        (KERNEL.488)
1200  */
1201 HMODULE WINAPI GetModuleHandleA(LPCSTR module)
1202 {
1203     WINE_MODREF *wm;
1204
1205     if ( module == NULL )
1206         wm = exe_modref;
1207     else
1208         wm = MODULE_FindModule( module );
1209
1210     return wm? wm->module : 0;
1211 }
1212
1213 /***********************************************************************
1214  *              GetModuleHandleW (KERNEL32.@)
1215  */
1216 HMODULE WINAPI GetModuleHandleW(LPCWSTR module)
1217 {
1218     HMODULE hModule;
1219     LPSTR modulea = HEAP_strdupWtoA( GetProcessHeap(), 0, module );
1220     hModule = GetModuleHandleA( modulea );
1221     HeapFree( GetProcessHeap(), 0, modulea );
1222     return hModule;
1223 }
1224
1225
1226 /***********************************************************************
1227  *              GetModuleFileNameA      (KERNEL32.@)
1228  *              GetModuleFileName32     (KERNEL.487)
1229  *
1230  * GetModuleFileNameA seems to *always* return the long path;
1231  * it's only GetModuleFileName16 that decides between short/long path
1232  * by checking if exe version >= 4.0.
1233  * (SDK docu doesn't mention this)
1234  */
1235 DWORD WINAPI GetModuleFileNameA(
1236         HMODULE hModule,        /* [in] module handle (32bit) */
1237         LPSTR lpFileName,       /* [out] filenamebuffer */
1238         DWORD size )            /* [in] size of filenamebuffer */
1239 {
1240     WINE_MODREF *wm;
1241
1242     RtlEnterCriticalSection( &loader_section );
1243
1244     lpFileName[0] = 0;
1245     if ((wm = MODULE32_LookupHMODULE( hModule )))
1246         lstrcpynA( lpFileName, wm->filename, size );
1247
1248     RtlLeaveCriticalSection( &loader_section );
1249     TRACE("%s\n", lpFileName );
1250     return strlen(lpFileName);
1251 }
1252
1253
1254 /***********************************************************************
1255  *              GetModuleFileNameW      (KERNEL32.@)
1256  */
1257 DWORD WINAPI GetModuleFileNameW( HMODULE hModule, LPWSTR lpFileName,
1258                                    DWORD size )
1259 {
1260     LPSTR fnA = (char*)HeapAlloc( GetProcessHeap(), 0, size );
1261     DWORD res = GetModuleFileNameA( hModule, fnA, size );
1262     if (size > 0 && !MultiByteToWideChar( CP_ACP, 0, fnA, -1, lpFileName, size ))
1263         lpFileName[size-1] = 0;
1264     HeapFree( GetProcessHeap(), 0, fnA );
1265     return res;
1266 }
1267
1268
1269 /***********************************************************************
1270  *           LoadLibraryExA   (KERNEL32.@)
1271  */
1272 HMODULE WINAPI LoadLibraryExA(LPCSTR libname, HANDLE hfile, DWORD flags)
1273 {
1274         WINE_MODREF *wm;
1275
1276         if(!libname)
1277         {
1278                 SetLastError(ERROR_INVALID_PARAMETER);
1279                 return 0;
1280         }
1281
1282         if (flags & LOAD_LIBRARY_AS_DATAFILE)
1283         {
1284             char filename[256];
1285             HMODULE hmod = 0;
1286
1287             /* This method allows searching for the 'native' libraries only */
1288             if (SearchPathA( NULL, libname, ".dll", sizeof(filename), filename, NULL ))
1289             {
1290                 /* FIXME: maybe we should use the hfile parameter instead */
1291                 HANDLE hFile = CreateFileA( filename, GENERIC_READ, FILE_SHARE_READ,
1292                                             NULL, OPEN_EXISTING, 0, 0 );
1293                 if (hFile != INVALID_HANDLE_VALUE)
1294                 {
1295                     DWORD type;
1296                     MODULE_GetBinaryType( hFile, filename, &type );
1297                     if (type == SCS_32BIT_BINARY)
1298                     {
1299                         HANDLE mapping = CreateFileMappingA( hFile, NULL, PAGE_READONLY,
1300                                                              0, 0, NULL );
1301                         if (mapping)
1302                         {
1303                             hmod = (HMODULE)MapViewOfFile( mapping, FILE_MAP_READ, 0, 0, 0 );
1304                             CloseHandle( mapping );
1305                         }
1306                     }
1307                     CloseHandle( hFile );
1308                 }
1309                 if (hmod) return (HMODULE)((ULONG_PTR)hmod + 1);
1310             }
1311             flags |= DONT_RESOLVE_DLL_REFERENCES; /* Just in case */
1312             /* Fallback to normal behaviour */
1313         }
1314
1315         RtlEnterCriticalSection( &loader_section );
1316
1317         wm = MODULE_LoadLibraryExA( libname, hfile, flags );
1318         if ( wm )
1319         {
1320                 if ( !MODULE_DllProcessAttach( wm, NULL ) )
1321                 {
1322                         WARN_(module)("Attach failed for module '%s', \n", libname);
1323                         MODULE_FreeLibrary(wm);
1324                         SetLastError(ERROR_DLL_INIT_FAILED);
1325                         wm = NULL;
1326                 }
1327         }
1328
1329         RtlLeaveCriticalSection( &loader_section );
1330         return wm ? wm->module : 0;
1331 }
1332
1333 /***********************************************************************
1334  *      allocate_lib_dir
1335  *
1336  * helper for MODULE_LoadLibraryExA.  Allocate space to hold the directory
1337  * portion of the provided name and put the name in it.
1338  *
1339  */
1340 static LPCSTR allocate_lib_dir(LPCSTR libname)
1341 {
1342     LPCSTR p, pmax;
1343     LPSTR result;
1344     int length;
1345
1346     pmax = libname;
1347     if ((p = strrchr( pmax, '\\' ))) pmax = p + 1;
1348     if ((p = strrchr( pmax, '/' ))) pmax = p + 1; /* Naughty.  MSDN says don't */
1349     if (pmax == libname && pmax[0] && pmax[1] == ':') pmax += 2;
1350
1351     length = pmax - libname;
1352
1353     result = HeapAlloc (GetProcessHeap(), 0, length+1);
1354
1355     if (result)
1356     {
1357         strncpy (result, libname, length);
1358         result [length] = '\0';
1359     }
1360
1361     return result;
1362 }
1363
1364 /***********************************************************************
1365  *      MODULE_LoadLibraryExA   (internal)
1366  *
1367  * Load a PE style module according to the load order.
1368  *
1369  * The HFILE parameter is not used and marked reserved in the SDK. I can
1370  * only guess that it should force a file to be mapped, but I rather
1371  * ignore the parameter because it would be extremely difficult to
1372  * integrate this with different types of module represenations.
1373  *
1374  * libdir is used to support LOAD_WITH_ALTERED_SEARCH_PATH during the recursion
1375  *        on this function.  When first called from LoadLibraryExA it will be
1376  *        NULL but thereafter it may point to a buffer containing the path
1377  *        portion of the library name.  Note that the recursion all occurs
1378  *        within a Critical section (see LoadLibraryExA) so the use of a
1379  *        static is acceptable.
1380  *        (We have to use a static variable at some point anyway, to pass the
1381  *        information from BUILTIN32_dlopen through dlopen and the builtin's
1382  *        init function into load_library).
1383  * allocated_libdir is TRUE in the stack frame that allocated libdir
1384  */
1385 WINE_MODREF *MODULE_LoadLibraryExA( LPCSTR libname, HFILE hfile, DWORD flags )
1386 {
1387         DWORD err = GetLastError();
1388         WINE_MODREF *pwm;
1389         int i;
1390         enum loadorder_type loadorder[LOADORDER_NTYPES];
1391         LPSTR filename, p;
1392         const char *filetype = "";
1393         DWORD found;
1394         BOOL allocated_libdir = FALSE;
1395         static LPCSTR libdir = NULL; /* See above */
1396
1397         if ( !libname ) return NULL;
1398
1399         filename = HeapAlloc ( GetProcessHeap(), 0, MAX_PATH + 1 );
1400         if ( !filename ) return NULL;
1401         *filename = 0; /* Just in case we don't set it before goto error */
1402
1403         RtlEnterCriticalSection( &loader_section );
1404
1405         if ((flags & LOAD_WITH_ALTERED_SEARCH_PATH) && FILE_contains_path(libname))
1406         {
1407             if (!(libdir = allocate_lib_dir(libname))) goto error;
1408             allocated_libdir = TRUE;
1409         }
1410
1411         if (!libdir || allocated_libdir)
1412             found = SearchPathA(NULL, libname, ".dll", MAX_PATH, filename, NULL);
1413         else
1414             found = DIR_SearchAlternatePath(libdir, libname, ".dll", MAX_PATH, filename, NULL);
1415
1416         /* build the modules filename */
1417         if (!found)
1418         {
1419             if ( ! GetSystemDirectoryA ( filename, MAX_PATH ) )
1420                 goto error;
1421
1422             /* if the library name contains a path and can not be found, return an error.
1423                exception: if the path is the system directory, proceed, so that modules,
1424                which are not PE-modules can be loaded
1425
1426                if the library name does not contain a path and can not be found, assume the
1427                system directory is meant */
1428
1429             if ( ! FILE_strncasecmp ( filename, libname, strlen ( filename ) ))
1430                 strcpy ( filename, libname );
1431             else
1432             {
1433                 if (FILE_contains_path(libname)) goto error;
1434                 strcat ( filename, "\\" );
1435                 strcat ( filename, libname );
1436             }
1437
1438             /* if the filename doesn't have an extension append .DLL */
1439             if (!(p = strrchr( filename, '.')) || strchr( p, '/' ) || strchr( p, '\\'))
1440                 strcat( filename, ".dll" );
1441         }
1442
1443         /* Check for already loaded module */
1444         if (!(pwm = MODULE_FindModule(filename)) && !FILE_contains_path(libname))
1445         {
1446             LPSTR       fn = HeapAlloc ( GetProcessHeap(), 0, MAX_PATH + 1 );
1447             if (fn)
1448             {
1449                 /* since the default loading mechanism uses a more detailed algorithm
1450                  * than SearchPath (like using PATH, which can even be modified between
1451                  * two attempts of loading the same DLL), the look-up above (with
1452                  * SearchPath) can have put the file in system directory, whereas it
1453                  * has already been loaded but with a different path. So do a specific
1454                  * look-up with filename (without any path)
1455                  */
1456                 strcpy ( fn, libname );
1457                 /* if the filename doesn't have an extension append .DLL */
1458                 if (!strrchr( fn, '.')) strcat( fn, ".dll" );
1459                 if ((pwm = MODULE_FindModule( fn )) != NULL)
1460                    strcpy( filename, fn );
1461                 HeapFree( GetProcessHeap(), 0, fn );
1462             }
1463         }
1464         if (pwm)
1465         {
1466                 if(!(pwm->flags & WINE_MODREF_MARKER))
1467                         pwm->refCount++;
1468
1469                 if ((pwm->flags & WINE_MODREF_DONT_RESOLVE_REFS) &&
1470                     !(flags & DONT_RESOLVE_DLL_REFERENCES))
1471                 {
1472                     pwm->flags &= ~WINE_MODREF_DONT_RESOLVE_REFS;
1473                     PE_fixup_imports( pwm );
1474                 }
1475                 TRACE("Already loaded module '%s' at 0x%08x, count=%d\n", filename, pwm->module, pwm->refCount);
1476                 if (allocated_libdir)
1477                 {
1478                     HeapFree ( GetProcessHeap(), 0, (LPSTR)libdir );
1479                     libdir = NULL;
1480                 }
1481                 RtlLeaveCriticalSection( &loader_section );
1482                 HeapFree ( GetProcessHeap(), 0, filename );
1483                 return pwm;
1484         }
1485
1486         MODULE_GetLoadOrder( loadorder, filename, TRUE);
1487
1488         for(i = 0; i < LOADORDER_NTYPES; i++)
1489         {
1490                 if (loadorder[i] == LOADORDER_INVALID) break;
1491                 SetLastError( ERROR_FILE_NOT_FOUND );
1492
1493                 switch(loadorder[i])
1494                 {
1495                 case LOADORDER_DLL:
1496                         TRACE("Trying native dll '%s'\n", filename);
1497                         pwm = PE_LoadLibraryExA(filename, flags);
1498                         filetype = "native";
1499                         break;
1500
1501                 case LOADORDER_SO:
1502                         TRACE("Trying so-library '%s'\n", filename);
1503                         pwm = ELF_LoadLibraryExA(filename, flags);
1504                         filetype = "so";
1505                         break;
1506
1507                 case LOADORDER_BI:
1508                         TRACE("Trying built-in '%s'\n", filename);
1509                         pwm = BUILTIN32_LoadLibraryExA(filename, flags);
1510                         filetype = "builtin";
1511                         break;
1512
1513                 default:
1514                         pwm = NULL;
1515                         break;
1516                 }
1517
1518                 if(pwm)
1519                 {
1520                         /* Initialize DLL just loaded */
1521                         TRACE("Loaded module '%s' at 0x%08x\n", filename, pwm->module);
1522                         if (!TRACE_ON(module))
1523                             TRACE_(loaddll)("Loaded module '%s' : %s\n", filename, filetype);
1524                         /* Set the refCount here so that an attach failure will */
1525                         /* decrement the dependencies through the MODULE_FreeLibrary call. */
1526                         pwm->refCount++;
1527
1528                         if (allocated_libdir)
1529                         {
1530                             HeapFree ( GetProcessHeap(), 0, (LPSTR)libdir );
1531                             libdir = NULL;
1532                         }
1533                         RtlLeaveCriticalSection( &loader_section );
1534                         SetLastError( err );  /* restore last error */
1535                         HeapFree ( GetProcessHeap(), 0, filename );
1536                         return pwm;
1537                 }
1538
1539                 if(GetLastError() != ERROR_FILE_NOT_FOUND)
1540                         break;
1541         }
1542
1543  error:
1544         if (allocated_libdir)
1545         {
1546             HeapFree ( GetProcessHeap(), 0, (LPSTR)libdir );
1547             libdir = NULL;
1548         }
1549         RtlLeaveCriticalSection( &loader_section );
1550         WARN("Failed to load module '%s'; error=0x%08lx\n", filename, GetLastError());
1551         HeapFree ( GetProcessHeap(), 0, filename );
1552         return NULL;
1553 }
1554
1555 /***********************************************************************
1556  *           LoadLibraryA         (KERNEL32.@)
1557  */
1558 HMODULE WINAPI LoadLibraryA(LPCSTR libname) {
1559         return LoadLibraryExA(libname,0,0);
1560 }
1561
1562 /***********************************************************************
1563  *           LoadLibraryW         (KERNEL32.@)
1564  */
1565 HMODULE WINAPI LoadLibraryW(LPCWSTR libnameW)
1566 {
1567     return LoadLibraryExW(libnameW,0,0);
1568 }
1569
1570 /***********************************************************************
1571  *           LoadLibrary32        (KERNEL.452)
1572  *           LoadSystemLibrary32  (KERNEL.482)
1573  */
1574 HMODULE WINAPI LoadLibrary32_16( LPCSTR libname )
1575 {
1576     HMODULE hModule;
1577     DWORD count;
1578
1579     ReleaseThunkLock( &count );
1580     hModule = LoadLibraryA( libname );
1581     RestoreThunkLock( count );
1582     return hModule;
1583 }
1584
1585 /***********************************************************************
1586  *           LoadLibraryExW       (KERNEL32.@)
1587  */
1588 HMODULE WINAPI LoadLibraryExW(LPCWSTR libnameW,HANDLE hfile,DWORD flags)
1589 {
1590     LPSTR libnameA = HEAP_strdupWtoA( GetProcessHeap(), 0, libnameW );
1591     HMODULE ret = LoadLibraryExA( libnameA , hfile, flags );
1592
1593     HeapFree( GetProcessHeap(), 0, libnameA );
1594     return ret;
1595 }
1596
1597 /***********************************************************************
1598  *           MODULE_FlushModrefs
1599  *
1600  * NOTE: Assumes that the process critical section is held!
1601  *
1602  * Remove all unused modrefs and call the internal unloading routines
1603  * for the library type.
1604  */
1605 static void MODULE_FlushModrefs(void)
1606 {
1607         WINE_MODREF *wm, *next;
1608
1609         for(wm = MODULE_modref_list; wm; wm = next)
1610         {
1611                 next = wm->next;
1612
1613                 if(wm->refCount)
1614                         continue;
1615
1616                 /* Unlink this modref from the chain */
1617                 if(wm->next)
1618                         wm->next->prev = wm->prev;
1619                 if(wm->prev)
1620                         wm->prev->next = wm->next;
1621                 if(wm == MODULE_modref_list)
1622                         MODULE_modref_list = wm->next;
1623
1624                 TRACE(" unloading %s\n", wm->filename);
1625                 if (wm->dlhandle) wine_dll_unload( wm->dlhandle );
1626                 else UnmapViewOfFile( (LPVOID)wm->module );
1627                 FreeLibrary16(wm->hDummyMod);
1628                 HeapFree( GetProcessHeap(), 0, wm->deps );
1629                 HeapFree( GetProcessHeap(), 0, wm );
1630         }
1631 }
1632
1633 /***********************************************************************
1634  *           FreeLibrary   (KERNEL32.@)
1635  *           FreeLibrary32 (KERNEL.486)
1636  */
1637 BOOL WINAPI FreeLibrary(HINSTANCE hLibModule)
1638 {
1639     BOOL retv = FALSE;
1640     WINE_MODREF *wm;
1641
1642     if (!hLibModule)
1643     {
1644         SetLastError( ERROR_INVALID_HANDLE );
1645         return FALSE;
1646     }
1647
1648     if ((ULONG_PTR)hLibModule & 1)
1649     {
1650         /* this is a LOAD_LIBRARY_AS_DATAFILE module */
1651         char *ptr = (char *)hLibModule - 1;
1652         UnmapViewOfFile( ptr );
1653         return TRUE;
1654     }
1655
1656     RtlEnterCriticalSection( &loader_section );
1657     free_lib_count++;
1658
1659     if ((wm = MODULE32_LookupHMODULE( hLibModule ))) retv = MODULE_FreeLibrary( wm );
1660
1661     free_lib_count--;
1662     RtlLeaveCriticalSection( &loader_section );
1663
1664     return retv;
1665 }
1666
1667 /***********************************************************************
1668  *           MODULE_DecRefCount
1669  *
1670  * NOTE: Assumes that the process critical section is held!
1671  */
1672 static void MODULE_DecRefCount( WINE_MODREF *wm )
1673 {
1674     int i;
1675
1676     if ( wm->flags & WINE_MODREF_MARKER )
1677         return;
1678
1679     if ( wm->refCount <= 0 )
1680         return;
1681
1682     --wm->refCount;
1683     TRACE("(%s) refCount: %d\n", wm->modname, wm->refCount );
1684
1685     if ( wm->refCount == 0 )
1686     {
1687         wm->flags |= WINE_MODREF_MARKER;
1688
1689         for ( i = 0; i < wm->nDeps; i++ )
1690             if ( wm->deps[i] )
1691                 MODULE_DecRefCount( wm->deps[i] );
1692
1693         wm->flags &= ~WINE_MODREF_MARKER;
1694     }
1695 }
1696
1697 /***********************************************************************
1698  *           MODULE_FreeLibrary
1699  *
1700  * NOTE: Assumes that the process critical section is held!
1701  */
1702 BOOL MODULE_FreeLibrary( WINE_MODREF *wm )
1703 {
1704     TRACE("(%s) - START\n", wm->modname );
1705
1706     /* Recursively decrement reference counts */
1707     MODULE_DecRefCount( wm );
1708
1709     /* Call process detach notifications */
1710     if ( free_lib_count <= 1 )
1711     {
1712         MODULE_DllProcessDetach( FALSE, NULL );
1713         SERVER_START_REQ( unload_dll )
1714         {
1715             req->base = (void *)wm->module;
1716             wine_server_call( req );
1717         }
1718         SERVER_END_REQ;
1719         MODULE_FlushModrefs();
1720     }
1721
1722     TRACE("END\n");
1723
1724     return TRUE;
1725 }
1726
1727
1728 /***********************************************************************
1729  *           FreeLibraryAndExitThread (KERNEL32.@)
1730  */
1731 VOID WINAPI FreeLibraryAndExitThread(HINSTANCE hLibModule, DWORD dwExitCode)
1732 {
1733     FreeLibrary(hLibModule);
1734     ExitThread(dwExitCode);
1735 }
1736
1737 /***********************************************************************
1738  *           PrivateLoadLibrary       (KERNEL32.@)
1739  *
1740  * FIXME: rough guesswork, don't know what "Private" means
1741  */
1742 HINSTANCE16 WINAPI PrivateLoadLibrary(LPCSTR libname)
1743 {
1744     return LoadLibrary16(libname);
1745 }
1746
1747
1748
1749 /***********************************************************************
1750  *           PrivateFreeLibrary       (KERNEL32.@)
1751  *
1752  * FIXME: rough guesswork, don't know what "Private" means
1753  */
1754 void WINAPI PrivateFreeLibrary(HINSTANCE16 handle)
1755 {
1756     FreeLibrary16(handle);
1757 }
1758
1759
1760 /***********************************************************************
1761  *           GetProcAddress16   (KERNEL32.37)
1762  * Get procaddress in 16bit module from win32... (kernel32 undoc. ordinal func)
1763  */
1764 FARPROC16 WINAPI WIN32_GetProcAddress16( HMODULE hModule, LPCSTR name )
1765 {
1766     if (!hModule) {
1767         WARN("hModule may not be 0!\n");
1768         return (FARPROC16)0;
1769     }
1770     if (HIWORD(hModule))
1771     {
1772         WARN("hModule is Win32 handle (%08x)\n", hModule );
1773         return (FARPROC16)0;
1774     }
1775     return GetProcAddress16( LOWORD(hModule), name );
1776 }
1777
1778 /***********************************************************************
1779  *           GetProcAddress   (KERNEL.50)
1780  */
1781 FARPROC16 WINAPI GetProcAddress16( HMODULE16 hModule, LPCSTR name )
1782 {
1783     WORD ordinal;
1784     FARPROC16 ret;
1785
1786     if (!hModule) hModule = GetCurrentTask();
1787     hModule = GetExePtr( hModule );
1788
1789     if (HIWORD(name) != 0)
1790     {
1791         ordinal = NE_GetOrdinal( hModule, name );
1792         TRACE("%04x '%s'\n", hModule, name );
1793     }
1794     else
1795     {
1796         ordinal = LOWORD(name);
1797         TRACE("%04x %04x\n", hModule, ordinal );
1798     }
1799     if (!ordinal) return (FARPROC16)0;
1800
1801     ret = NE_GetEntryPoint( hModule, ordinal );
1802
1803     TRACE("returning %08x\n", (UINT)ret );
1804     return ret;
1805 }
1806
1807
1808 /***********************************************************************
1809  *           GetProcAddress             (KERNEL32.@)
1810  */
1811 FARPROC WINAPI GetProcAddress( HMODULE hModule, LPCSTR function )
1812 {
1813     return MODULE_GetProcAddress( hModule, function, TRUE );
1814 }
1815
1816 /***********************************************************************
1817  *           GetProcAddress32                   (KERNEL.453)
1818  */
1819 FARPROC WINAPI GetProcAddress32_16( HMODULE hModule, LPCSTR function )
1820 {
1821     return MODULE_GetProcAddress( hModule, function, FALSE );
1822 }
1823
1824 /***********************************************************************
1825  *           MODULE_GetProcAddress              (internal)
1826  */
1827 FARPROC MODULE_GetProcAddress(
1828         HMODULE hModule,        /* [in] current module handle */
1829         LPCSTR function,        /* [in] function to be looked up */
1830         BOOL snoop )
1831 {
1832     WINE_MODREF *wm;
1833     FARPROC     retproc = 0;
1834
1835     if (HIWORD(function))
1836         TRACE_(win32)("(%08lx,%s)\n",(DWORD)hModule,function);
1837     else
1838         TRACE_(win32)("(%08lx,%p)\n",(DWORD)hModule,function);
1839
1840     RtlEnterCriticalSection( &loader_section );
1841     if ((wm = MODULE32_LookupHMODULE( hModule )))
1842     {
1843         retproc = wm->find_export( wm, function, snoop );
1844         if (!retproc) SetLastError(ERROR_PROC_NOT_FOUND);
1845     }
1846     RtlLeaveCriticalSection( &loader_section );
1847     return retproc;
1848 }
1849
1850
1851 /***************************************************************************
1852  *              HasGPHandler                    (KERNEL.338)
1853  */
1854
1855 #include "pshpack1.h"
1856 typedef struct _GPHANDLERDEF
1857 {
1858     WORD selector;
1859     WORD rangeStart;
1860     WORD rangeEnd;
1861     WORD handler;
1862 } GPHANDLERDEF;
1863 #include "poppack.h"
1864
1865 SEGPTR WINAPI HasGPHandler16( SEGPTR address )
1866 {
1867     HMODULE16 hModule;
1868     int gpOrdinal;
1869     SEGPTR gpPtr;
1870     GPHANDLERDEF *gpHandler;
1871
1872     if (    (hModule = FarGetOwner16( SELECTOROF(address) )) != 0
1873          && (gpOrdinal = NE_GetOrdinal( hModule, "__GP" )) != 0
1874          && (gpPtr = (SEGPTR)NE_GetEntryPointEx( hModule, gpOrdinal, FALSE )) != 0
1875          && !IsBadReadPtr16( gpPtr, sizeof(GPHANDLERDEF) )
1876          && (gpHandler = MapSL( gpPtr )) != NULL )
1877     {
1878         while (gpHandler->selector)
1879         {
1880             if (    SELECTOROF(address) == gpHandler->selector
1881                  && OFFSETOF(address)   >= gpHandler->rangeStart
1882                  && OFFSETOF(address)   <  gpHandler->rangeEnd  )
1883                 return MAKESEGPTR( gpHandler->selector, gpHandler->handler );
1884             gpHandler++;
1885         }
1886     }
1887
1888     return 0;
1889 }
1890