loader/module.c

   1 /*
   2  * Modules
   3  *
   4  * Copyright 1995 Alexandre Julliard
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  */
  20
  21 #include <assert.h>
  22 #include <fcntl.h>
  23 #include <stdlib.h>
  24 #include <stdio.h>
  25 #include <string.h>
  26 #include <sys/types.h>
  27 #include <unistd.h>
  28 #include "wine/winbase16.h"
  29 #include "winerror.h"
  30 #include "heap.h"
  31 #include "file.h"
  32 #include "module.h"
  33 #include "wine/debug.h"
  34 #include "wine/server.h"
  35
  36 WINE_DEFAULT_DEBUG_CHANNEL(module);
  37 WINE_DECLARE_DEBUG_CHANNEL(win32);
  38 WINE_DECLARE_DEBUG_CHANNEL(loaddll);
  39
  40 WINE_MODREF *MODULE_modref_list = NULL;
  41
  42 static WINE_MODREF *exe_modref;
  43 static int free_lib_count;   /* recursion depth of FreeLibrary calls */
  44 static int process_detaching;  /* set on process detach to avoid deadlocks with thread detach */
  45
  46 static CRITICAL_SECTION loader_section = CRITICAL_SECTION_INIT( "loader_section" );
  47
  48 /***********************************************************************
  49  *           wait_input_idle
  50  *
  51  * Wrapper to call WaitForInputIdle USER function
  52  */
  53 typedef DWORD (WINAPI *WaitForInputIdle_ptr)( HANDLE hProcess, DWORD dwTimeOut );
  54
  55 static DWORD wait_input_idle( HANDLE process, DWORD timeout )
  56 {
  57     HMODULE mod = GetModuleHandleA( "user32.dll" );
  58     if (mod)
  59     {
  60         WaitForInputIdle_ptr ptr = (WaitForInputIdle_ptr)GetProcAddress( mod, "WaitForInputIdle" );
  61         if (ptr) return ptr( process, timeout );
  62     }
  63     return 0;
  64 }
  65
  66
  67 /*************************************************************************
  68  *              MODULE32_LookupHMODULE
  69  * looks for the referenced HMODULE in the current process
  70  * NOTE: Assumes that the process critical section is held!
  71  */
  72 static WINE_MODREF *MODULE32_LookupHMODULE( HMODULE hmod )
  73 {
  74     WINE_MODREF *wm;
  75
  76     if (!hmod)
  77         return exe_modref;
  78
  79     if (!HIWORD(hmod)) {
  80         ERR("tried to lookup 0x%04x in win32 module handler!\n",hmod);
  81         SetLastError( ERROR_INVALID_HANDLE );
  82         return NULL;
  83     }
  84     for ( wm = MODULE_modref_list; wm; wm=wm->next )
  85         if (wm->module == hmod)
  86             return wm;
  87     SetLastError( ERROR_INVALID_HANDLE );
  88     return NULL;
  89 }
  90
  91 /*************************************************************************
  92  *              MODULE_AllocModRef
  93  *
  94  * Allocate a WINE_MODREF structure and add it to the process list
  95  * NOTE: Assumes that the process critical section is held!
  96  */
  97 WINE_MODREF *MODULE_AllocModRef( HMODULE hModule, LPCSTR filename )
  98 {
  99     WINE_MODREF *wm;
 100
 101     DWORD long_len = strlen( filename );
 102     DWORD short_len = GetShortPathNameA( filename, NULL, 0 );
 103
 104     if ((wm = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY,
 105                          sizeof(*wm) + long_len + short_len + 1 )))
 106     {
 107         wm->module = hModule;
 108         wm->tlsindex = -1;
 109
 110         wm->filename = wm->data;
 111         memcpy( wm->filename, filename, long_len + 1 );
 112         if ((wm->modname = strrchr( wm->filename, '\\' ))) wm->modname++;
 113         else wm->modname = wm->filename;
 114
 115         wm->short_filename = wm->filename + long_len + 1;
 116         GetShortPathNameA( wm->filename, wm->short_filename, short_len + 1 );
 117         if ((wm->short_modname = strrchr( wm->short_filename, '\\' ))) wm->short_modname++;
 118         else wm->short_modname = wm->short_filename;
 119
 120         wm->next = MODULE_modref_list;
 121         if (wm->next) wm->next->prev = wm;
 122         MODULE_modref_list = wm;
 123
 124         if (!(PE_HEADER(hModule)->FileHeader.Characteristics & IMAGE_FILE_DLL))
 125         {
 126             if (!exe_modref) exe_modref = wm;
 127             else FIXME( "Trying to load second .EXE file: %s\n", filename );
 128         }
 129     }
 130     return wm;
 131 }
 132
 133 /*************************************************************************
 134  *              MODULE_InitDLL
 135  */
 136 static BOOL MODULE_InitDLL( WINE_MODREF *wm, DWORD type, LPVOID lpReserved )
 137 {
 138     BOOL retv = TRUE;
 139
 140     static LPCSTR typeName[] = { "PROCESS_DETACH", "PROCESS_ATTACH",
 141                                  "THREAD_ATTACH", "THREAD_DETACH" };
 142     assert( wm );
 143
 144     /* Skip calls for modules loaded with special load flags */
 145
 146     if (wm->flags & WINE_MODREF_DONT_RESOLVE_REFS) return TRUE;
 147
 148     TRACE("(%s,%s,%p) - CALL\n", wm->modname, typeName[type], lpReserved );
 149
 150     /* Call the initialization routine */
 151     retv = PE_InitDLL( wm->module, type, lpReserved );
 152
 153     /* The state of the module list may have changed due to the call
 154        to PE_InitDLL. We cannot assume that this module has not been
 155        deleted.  */
 156     TRACE("(%p,%s,%p) - RETURN %d\n", wm, typeName[type], lpReserved, retv );
 157
 158     return retv;
 159 }
 160
 161 /*************************************************************************
 162  *              MODULE_DllProcessAttach
 163  *
 164  * Send the process attach notification to all DLLs the given module
 165  * depends on (recursively). This is somewhat complicated due to the fact that
 166  *
 167  * - we have to respect the module dependencies, i.e. modules implicitly
 168  *   referenced by another module have to be initialized before the module
 169  *   itself can be initialized
 170  *
 171  * - the initialization routine of a DLL can itself call LoadLibrary,
 172  *   thereby introducing a whole new set of dependencies (even involving
 173  *   the 'old' modules) at any time during the whole process
 174  *
 175  * (Note that this routine can be recursively entered not only directly
 176  *  from itself, but also via LoadLibrary from one of the called initialization
 177  *  routines.)
 178  *
 179  * Furthermore, we need to rearrange the main WINE_MODREF list to allow
 180  * the process *detach* notifications to be sent in the correct order.
 181  * This must not only take into account module dependencies, but also
 182  * 'hidden' dependencies created by modules calling LoadLibrary in their
 183  * attach notification routine.
 184  *
 185  * The strategy is rather simple: we move a WINE_MODREF to the head of the
 186  * list after the attach notification has returned.  This implies that the
 187  * detach notifications are called in the reverse of the sequence the attach
 188  * notifications *returned*.
 189  */
 190 BOOL MODULE_DllProcessAttach( WINE_MODREF *wm, LPVOID lpReserved )
 191 {
 192     BOOL retv = TRUE;
 193     int i;
 194
 195     RtlEnterCriticalSection( &loader_section );
 196
 197     if (!wm)
 198     {
 199         wm = exe_modref;
 200         PE_InitTls();
 201     }
 202     assert( wm );
 203
 204     /* prevent infinite recursion in case of cyclical dependencies */
 205     if (    ( wm->flags & WINE_MODREF_MARKER )
 206          || ( wm->flags & WINE_MODREF_PROCESS_ATTACHED ) )
 207         goto done;
 208
 209     TRACE("(%s,%p) - START\n", wm->modname, lpReserved );
 210
 211     /* Tag current MODREF to prevent recursive loop */
 212     wm->flags |= WINE_MODREF_MARKER;
 213
 214     /* Recursively attach all DLLs this one depends on */
 215     for ( i = 0; retv && i < wm->nDeps; i++ )
 216         if ( wm->deps[i] )
 217             retv = MODULE_DllProcessAttach( wm->deps[i], lpReserved );
 218
 219     /* Call DLL entry point */
 220     if ( retv )
 221     {
 222         retv = MODULE_InitDLL( wm, DLL_PROCESS_ATTACH, lpReserved );
 223         if ( retv )
 224             wm->flags |= WINE_MODREF_PROCESS_ATTACHED;
 225     }
 226
 227     /* Re-insert MODREF at head of list */
 228     if ( retv && wm->prev )
 229     {
 230         wm->prev->next = wm->next;
 231         if ( wm->next ) wm->next->prev = wm->prev;
 232
 233         wm->prev = NULL;
 234         wm->next = MODULE_modref_list;
 235         MODULE_modref_list = wm->next->prev = wm;
 236     }
 237
 238     /* Remove recursion flag */
 239     wm->flags &= ~WINE_MODREF_MARKER;
 240
 241     TRACE("(%s,%p) - END\n", wm->modname, lpReserved );
 242
 243  done:
 244     RtlLeaveCriticalSection( &loader_section );
 245     return retv;
 246 }
 247
 248 /*************************************************************************
 249  *              MODULE_DllProcessDetach
 250  *
 251  * Send DLL process detach notifications.  See the comment about calling
 252  * sequence at MODULE_DllProcessAttach.  Unless the bForceDetach flag
 253  * is set, only DLLs with zero refcount are notified.
 254  */
 255 void MODULE_DllProcessDetach( BOOL bForceDetach, LPVOID lpReserved )
 256 {
 257     WINE_MODREF *wm;
 258
 259     RtlEnterCriticalSection( &loader_section );
 260     if (bForceDetach) process_detaching = 1;
 261     do
 262     {
 263         for ( wm = MODULE_modref_list; wm; wm = wm->next )
 264         {
 265             /* Check whether to detach this DLL */
 266             if ( !(wm->flags & WINE_MODREF_PROCESS_ATTACHED) )
 267                 continue;
 268             if ( wm->refCount > 0 && !bForceDetach )
 269                 continue;
 270
 271             /* Call detach notification */
 272             wm->flags &= ~WINE_MODREF_PROCESS_ATTACHED;
 273             MODULE_InitDLL( wm, DLL_PROCESS_DETACH, lpReserved );
 274
 275             /* Restart at head of WINE_MODREF list, as entries might have
 276                been added and/or removed while performing the call ... */
 277             break;
 278         }
 279     } while ( wm );
 280
 281     RtlLeaveCriticalSection( &loader_section );
 282 }
 283
 284 /*************************************************************************
 285  *              MODULE_DllThreadAttach
 286  *
 287  * Send DLL thread attach notifications. These are sent in the
 288  * reverse sequence of process detach notification.
 289  *
 290  */
 291 void MODULE_DllThreadAttach( LPVOID lpReserved )
 292 {
 293     WINE_MODREF *wm;
 294
 295     /* don't do any attach calls if process is exiting */
 296     if (process_detaching) return;
 297     /* FIXME: there is still a race here */
 298
 299     RtlEnterCriticalSection( &loader_section );
 300
 301     PE_InitTls();
 302
 303     for ( wm = MODULE_modref_list; wm; wm = wm->next )
 304         if ( !wm->next )
 305             break;
 306
 307     for ( ; wm; wm = wm->prev )
 308     {
 309         if ( !(wm->flags & WINE_MODREF_PROCESS_ATTACHED) )
 310             continue;
 311         if ( wm->flags & WINE_MODREF_NO_DLL_CALLS )
 312             continue;
 313
 314         MODULE_InitDLL( wm, DLL_THREAD_ATTACH, lpReserved );
 315     }
 316
 317     RtlLeaveCriticalSection( &loader_section );
 318 }
 319
 320 /*************************************************************************
 321  *              MODULE_DllThreadDetach
 322  *
 323  * Send DLL thread detach notifications. These are sent in the
 324  * same sequence as process detach notification.
 325  *
 326  */
 327 void MODULE_DllThreadDetach( LPVOID lpReserved )
 328 {
 329     WINE_MODREF *wm;
 330
 331     /* don't do any detach calls if process is exiting */
 332     if (process_detaching) return;
 333     /* FIXME: there is still a race here */
 334
 335     RtlEnterCriticalSection( &loader_section );
 336
 337     for ( wm = MODULE_modref_list; wm; wm = wm->next )
 338     {
 339         if ( !(wm->flags & WINE_MODREF_PROCESS_ATTACHED) )
 340             continue;
 341         if ( wm->flags & WINE_MODREF_NO_DLL_CALLS )
 342             continue;
 343
 344         MODULE_InitDLL( wm, DLL_THREAD_DETACH, lpReserved );
 345     }
 346
 347     RtlLeaveCriticalSection( &loader_section );
 348 }
 349
 350 /****************************************************************************
 351  *              DisableThreadLibraryCalls (KERNEL32.@)
 352  *
 353  * Don't call DllEntryPoint for DLL_THREAD_{ATTACH,DETACH} if set.
 354  */
 355 BOOL WINAPI DisableThreadLibraryCalls( HMODULE hModule )
 356 {
 357     WINE_MODREF *wm;
 358     BOOL retval = TRUE;
 359
 360     RtlEnterCriticalSection( &loader_section );
 361
 362     wm = MODULE32_LookupHMODULE( hModule );
 363     if ( !wm )
 364         retval = FALSE;
 365     else
 366         wm->flags |= WINE_MODREF_NO_DLL_CALLS;
 367
 368     RtlLeaveCriticalSection( &loader_section );
 369
 370     return retval;
 371 }
 372
 373
 374 /***********************************************************************
 375  *           MODULE_CreateDummyModule
 376  *
 377  * Create a dummy NE module for Win32 or Winelib.
 378  */
 379 HMODULE16 MODULE_CreateDummyModule( LPCSTR filename, HMODULE module32 )
 380 {
 381     HMODULE16 hModule;
 382     NE_MODULE *pModule;
 383     SEGTABLEENTRY *pSegment;
 384     char *pStr,*s;
 385     unsigned int len;
 386     const char* basename;
 387     OFSTRUCT *ofs;
 388     int of_size, size;
 389
 390     /* Extract base filename */
 391     basename = strrchr(filename, '\\');
 392     if (!basename) basename = filename;
 393     else basename++;
 394     len = strlen(basename);
 395     if ((s = strchr(basename, '.'))) len = s - basename;
 396
 397     /* Allocate module */
 398     of_size = sizeof(OFSTRUCT) - sizeof(ofs->szPathName)
 399                     + strlen(filename) + 1;
 400     size = sizeof(NE_MODULE) +
 401                  /* loaded file info */
 402                  ((of_size + 3) & ~3) +
 403                  /* segment table: DS,CS */
 404                  2 * sizeof(SEGTABLEENTRY) +
 405                  /* name table */
 406                  len + 2 +
 407                  /* several empty tables */
 408                  8;
 409
 410     hModule = GlobalAlloc16( GMEM_MOVEABLE | GMEM_ZEROINIT, size );
 411     if (!hModule) return (HMODULE16)11;  /* invalid exe */
 412
 413     FarSetOwner16( hModule, hModule );
 414     pModule = (NE_MODULE *)GlobalLock16( hModule );
 415
 416     /* Set all used entries */
 417     pModule->magic            = IMAGE_OS2_SIGNATURE;
 418     pModule->count            = 1;
 419     pModule->next             = 0;
 420     pModule->flags            = 0;
 421     pModule->dgroup           = 0;
 422     pModule->ss               = 1;
 423     pModule->cs               = 2;
 424     pModule->heap_size        = 0;
 425     pModule->stack_size       = 0;
 426     pModule->seg_count        = 2;
 427     pModule->modref_count     = 0;
 428     pModule->nrname_size      = 0;
 429     pModule->fileinfo         = sizeof(NE_MODULE);
 430     pModule->os_flags         = NE_OSFLAGS_WINDOWS;
 431     pModule->self             = hModule;
 432     pModule->module32         = module32;
 433
 434     /* Set version and flags */
 435     if (module32)
 436     {
 437         pModule->expected_version =
 438             ((PE_HEADER(module32)->OptionalHeader.MajorSubsystemVersion & 0xff) << 8 ) |
 439              (PE_HEADER(module32)->OptionalHeader.MinorSubsystemVersion & 0xff);
 440         pModule->flags |= NE_FFLAGS_WIN32;
 441         if (PE_HEADER(module32)->FileHeader.Characteristics & IMAGE_FILE_DLL)
 442             pModule->flags |= NE_FFLAGS_LIBMODULE | NE_FFLAGS_SINGLEDATA;
 443     }
 444
 445     /* Set loaded file information */
 446     ofs = (OFSTRUCT *)(pModule + 1);
 447     memset( ofs, 0, of_size );
 448     ofs->cBytes = of_size < 256 ? of_size : 255;   /* FIXME */
 449     strcpy( ofs->szPathName, filename );
 450
 451     pSegment = (SEGTABLEENTRY*)((char*)(pModule + 1) + ((of_size + 3) & ~3));
 452     pModule->seg_table = (int)pSegment - (int)pModule;
 453     /* Data segment */
 454     pSegment->size    = 0;
 455     pSegment->flags   = NE_SEGFLAGS_DATA;
 456     pSegment->minsize = 0x1000;
 457     pSegment++;
 458     /* Code segment */
 459     pSegment->flags   = 0;
 460     pSegment++;
 461
 462     /* Module name */
 463     pStr = (char *)pSegment;
 464     pModule->name_table = (int)pStr - (int)pModule;
 465     assert(len<256);
 466     *pStr = len;
 467     lstrcpynA( pStr+1, basename, len+1 );
 468     pStr += len+2;
 469
 470     /* All tables zero terminated */
 471     pModule->res_table = pModule->import_table = pModule->entry_table =
 472                 (int)pStr - (int)pModule;
 473
 474     NE_RegisterModule( pModule );
 475     return hModule;
 476 }
 477
 478
 479 /**********************************************************************
 480  *          MODULE_FindModule
 481  *
 482  * Find a (loaded) win32 module depending on path
 483  *
 484  * RETURNS
 485  *      the module handle if found
 486  *      0 if not
 487  */
 488 WINE_MODREF *MODULE_FindModule(
 489         LPCSTR path     /* [in] pathname of module/library to be found */
 490 ) {
 491     WINE_MODREF *wm;
 492     char dllname[260], *p;
 493
 494     /* Append .DLL to name if no extension present */
 495     strcpy( dllname, path );
 496     if (!(p = strrchr( dllname, '.')) || strchr( p, '/' ) || strchr( p, '\\'))
 497             strcat( dllname, ".DLL" );
 498
 499     for ( wm = MODULE_modref_list; wm; wm = wm->next )
 500     {
 501         if ( !FILE_strcasecmp( dllname, wm->modname ) )
 502             break;
 503         if ( !FILE_strcasecmp( dllname, wm->filename ) )
 504             break;
 505         if ( !FILE_strcasecmp( dllname, wm->short_modname ) )
 506             break;
 507         if ( !FILE_strcasecmp( dllname, wm->short_filename ) )
 508             break;
 509     }
 510
 511     return wm;
 512 }
 513
 514
 515 /* Check whether a file is an OS/2 or a very old Windows executable
 516  * by testing on import of KERNEL.
 517  *
 518  * FIXME: is reading the module imports the only way of discerning
 519  *        old Windows binaries from OS/2 ones ? At least it seems so...
 520  */
 521 static DWORD MODULE_Decide_OS2_OldWin(HANDLE hfile, IMAGE_DOS_HEADER *mz, IMAGE_OS2_HEADER *ne)
 522 {
 523     DWORD currpos = SetFilePointer( hfile, 0, NULL, SEEK_CUR);
 524     DWORD type = SCS_OS216_BINARY;
 525     LPWORD modtab = NULL;
 526     LPSTR nametab = NULL;
 527     DWORD len;
 528     int i;
 529
 530     /* read modref table */
 531     if ( (SetFilePointer( hfile, mz->e_lfanew + ne->ne_modtab, NULL, SEEK_SET ) == -1)
 532       || (!(modtab = HeapAlloc( GetProcessHeap(), 0, ne->ne_cmod*sizeof(WORD))))
 533       || (!(ReadFile(hfile, modtab, ne->ne_cmod*sizeof(WORD), &len, NULL)))
 534       || (len != ne->ne_cmod*sizeof(WORD)) )
 535         goto broken;
 536
 537     /* read imported names table */
 538     if ( (SetFilePointer( hfile, mz->e_lfanew + ne->ne_imptab, NULL, SEEK_SET ) == -1)
 539       || (!(nametab = HeapAlloc( GetProcessHeap(), 0, ne->ne_enttab - ne->ne_imptab)))
 540       || (!(ReadFile(hfile, nametab, ne->ne_enttab - ne->ne_imptab, &len, NULL)))
 541       || (len != ne->ne_enttab - ne->ne_imptab) )
 542         goto broken;
 543
 544     for (i=0; i < ne->ne_cmod; i++)
 545     {
 546         LPSTR module = &nametab[modtab[i]];
 547         TRACE("modref: %.*s\n", module[0], &module[1]);
 548         if (!(strncmp(&module[1], "KERNEL", module[0])))
 549         { /* very old Windows file */
 550             MESSAGE("This seems to be a very old (pre-3.0) Windows executable. Expect crashes, especially if this is a real-mode binary !\n");
 551             type = SCS_WOW_BINARY;
 552             goto good;
 553         }
 554     }
 555
 556 broken:
 557     ERR("Hmm, an error occurred. Is this binary file broken ?\n");
 558
 559 good:
 560     HeapFree( GetProcessHeap(), 0, modtab);
 561     HeapFree( GetProcessHeap(), 0, nametab);
 562     SetFilePointer( hfile, currpos, NULL, SEEK_SET); /* restore filepos */
 563     return type;
 564 }
 565
 566 /***********************************************************************
 567  *           MODULE_GetBinaryType
 568  *
 569  * The GetBinaryType function determines whether a file is executable
 570  * or not and if it is it returns what type of executable it is.
 571  * The type of executable is a property that determines in which
 572  * subsystem an executable file runs under.
 573  *
 574  * Binary types returned:
 575  * SCS_32BIT_BINARY: A Win32 based application
 576  * SCS_DOS_BINARY: An MS-Dos based application
 577  * SCS_WOW_BINARY: A Win16 based application
 578  * SCS_PIF_BINARY: A PIF file that executes an MS-Dos based app
 579  * SCS_POSIX_BINARY: A POSIX based application ( Not implemented )
 580  * SCS_OS216_BINARY: A 16bit OS/2 based application
 581  *
 582  * Returns TRUE if the file is an executable in which case
 583  * the value pointed by lpBinaryType is set.
 584  * Returns FALSE if the file is not an executable or if the function fails.
 585  *
 586  * To do so it opens the file and reads in the header information
 587  * if the extended header information is not present it will
 588  * assume that the file is a DOS executable.
 589  * If the extended header information is present it will
 590  * determine if the file is a 16 or 32 bit Windows executable
 591  * by check the flags in the header.
 592  *
 593  * Note that .COM and .PIF files are only recognized by their
 594  * file name extension; but Windows does it the same way ...
 595  */
 596 static BOOL MODULE_GetBinaryType( HANDLE hfile, LPCSTR filename, LPDWORD lpBinaryType )
 597 {
 598     IMAGE_DOS_HEADER mz_header;
 599     char magic[4], *ptr;
 600     DWORD len;
 601
 602     /* Seek to the start of the file and read the DOS header information.
 603      */
 604     if (    SetFilePointer( hfile, 0, NULL, SEEK_SET ) != -1
 605          && ReadFile( hfile, &mz_header, sizeof(mz_header), &len, NULL )
 606          && len == sizeof(mz_header) )
 607     {
 608         /* Now that we have the header check the e_magic field
 609          * to see if this is a dos image.
 610          */
 611         if ( mz_header.e_magic == IMAGE_DOS_SIGNATURE )
 612         {
 613             BOOL lfanewValid = FALSE;
 614             /* We do have a DOS image so we will now try to seek into
 615              * the file by the amount indicated by the field
 616              * "Offset to extended header" and read in the
 617              * "magic" field information at that location.
 618              * This will tell us if there is more header information
 619              * to read or not.
 620              */
 621             /* But before we do we will make sure that header
 622              * structure encompasses the "Offset to extended header"
 623              * field.
 624              */
 625             if ( (mz_header.e_cparhdr<<4) >= sizeof(IMAGE_DOS_HEADER) )
 626                 if ( ( mz_header.e_crlc == 0 ) ||
 627                      ( mz_header.e_lfarlc >= sizeof(IMAGE_DOS_HEADER) ) )
 628                     if (    mz_header.e_lfanew >= sizeof(IMAGE_DOS_HEADER)
 629                          && SetFilePointer( hfile, mz_header.e_lfanew, NULL, SEEK_SET ) != -1
 630                          && ReadFile( hfile, magic, sizeof(magic), &len, NULL )
 631                          && len == sizeof(magic) )
 632                         lfanewValid = TRUE;
 633
 634             if ( !lfanewValid )
 635             {
 636                 /* If we cannot read this "extended header" we will
 637                  * assume that we have a simple DOS executable.
 638                  */
 639                 *lpBinaryType = SCS_DOS_BINARY;
 640                 return TRUE;
 641             }
 642             else
 643             {
 644                 /* Reading the magic field succeeded so
 645                  * we will try to determine what type it is.
 646                  */
 647                 if ( *(DWORD*)magic      == IMAGE_NT_SIGNATURE )
 648                 {
 649                     /* This is an NT signature.
 650                      */
 651                     *lpBinaryType = SCS_32BIT_BINARY;
 652                     return TRUE;
 653                 }
 654                 else if ( *(WORD*)magic == IMAGE_OS2_SIGNATURE )
 655                 {
 656                     /* The IMAGE_OS2_SIGNATURE indicates that the
 657                      * "extended header is a Windows executable (NE)
 658                      * header."  This can mean either a 16-bit OS/2
 659                      * or a 16-bit Windows or even a DOS program
 660                      * (running under a DOS extender).  To decide
 661                      * which, we'll have to read the NE header.
 662                      */
 663
 664                      IMAGE_OS2_HEADER ne;
 665                      if (    SetFilePointer( hfile, mz_header.e_lfanew, NULL, SEEK_SET ) != -1
 666                           && ReadFile( hfile, &ne, sizeof(ne), &len, NULL )
 667                           && len == sizeof(ne) )
 668                      {
 669                          switch ( ne.ne_exetyp )
 670                          {
 671                          case 2:  *lpBinaryType = SCS_WOW_BINARY;   return TRUE;
 672                          case 5:  *lpBinaryType = SCS_DOS_BINARY;   return TRUE;
 673                          default: *lpBinaryType =
 674                                   MODULE_Decide_OS2_OldWin(hfile, &mz_header, &ne);
 675                                   return TRUE;
 676                          }
 677                      }
 678                      /* Couldn't read header, so abort. */
 679                      return FALSE;
 680                 }
 681                 else
 682                 {
 683                     /* Unknown extended header, but this file is nonetheless
 684                        DOS-executable.
 685                      */
 686                     *lpBinaryType = SCS_DOS_BINARY;
 687                     return TRUE;
 688                 }
 689             }
 690         }
 691     }
 692
 693     /* If we get here, we don't even have a correct MZ header.
 694      * Try to check the file extension for known types ...
 695      */
 696     ptr = strrchr( filename, '.' );
 697     if ( ptr && !strchr( ptr, '\\' ) && !strchr( ptr, '/' ) )
 698     {
 699         if ( !FILE_strcasecmp( ptr, ".COM" ) )
 700         {
 701             *lpBinaryType = SCS_DOS_BINARY;
 702             return TRUE;
 703         }
 704
 705         if ( !FILE_strcasecmp( ptr, ".PIF" ) )
 706         {
 707             *lpBinaryType = SCS_PIF_BINARY;
 708             return TRUE;
 709         }
 710     }
 711
 712     return FALSE;
 713 }
 714
 715 /***********************************************************************
 716  *             GetBinaryTypeA                     [KERNEL32.@]
 717  *             GetBinaryType                      [KERNEL32.@]
 718  */
 719 BOOL WINAPI GetBinaryTypeA( LPCSTR lpApplicationName, LPDWORD lpBinaryType )
 720 {
 721     BOOL ret = FALSE;
 722     HANDLE hfile;
 723
 724     TRACE_(win32)("%s\n", lpApplicationName );
 725
 726     /* Sanity check.
 727      */
 728     if ( lpApplicationName == NULL || lpBinaryType == NULL )
 729         return FALSE;
 730
 731     /* Open the file indicated by lpApplicationName for reading.
 732      */
 733     hfile = CreateFileA( lpApplicationName, GENERIC_READ, FILE_SHARE_READ,
 734                          NULL, OPEN_EXISTING, 0, 0 );
 735     if ( hfile == INVALID_HANDLE_VALUE )
 736         return FALSE;
 737
 738     /* Check binary type
 739      */
 740     ret = MODULE_GetBinaryType( hfile, lpApplicationName, lpBinaryType );
 741
 742     /* Close the file.
 743      */
 744     CloseHandle( hfile );
 745
 746     return ret;
 747 }
 748
 749 /***********************************************************************
 750  *             GetBinaryTypeW                      [KERNEL32.@]
 751  */
 752 BOOL WINAPI GetBinaryTypeW( LPCWSTR lpApplicationName, LPDWORD lpBinaryType )
 753 {
 754     BOOL ret = FALSE;
 755     LPSTR strNew = NULL;
 756
 757     TRACE_(win32)("%s\n", debugstr_w(lpApplicationName) );
 758
 759     /* Sanity check.
 760      */
 761     if ( lpApplicationName == NULL || lpBinaryType == NULL )
 762         return FALSE;
 763
 764     /* Convert the wide string to a ascii string.
 765      */
 766     strNew = HEAP_strdupWtoA( GetProcessHeap(), 0, lpApplicationName );
 767
 768     if ( strNew != NULL )
 769     {
 770         ret = GetBinaryTypeA( strNew, lpBinaryType );
 771
 772         /* Free the allocated string.
 773          */
 774         HeapFree( GetProcessHeap(), 0, strNew );
 775     }
 776
 777     return ret;
 778 }
 779
 780
 781 /***********************************************************************
 782  *           WinExec     (KERNEL.166)
 783  *           WinExec16   (KERNEL32.@)
 784  */
 785 HINSTANCE16 WINAPI WinExec16( LPCSTR lpCmdLine, UINT16 nCmdShow )
 786 {
 787     LPCSTR p, args = NULL;
 788     LPCSTR name_beg, name_end;
 789     LPSTR name, cmdline;
 790     int arglen;
 791     HINSTANCE16 ret;
 792     char buffer[MAX_PATH];
 793
 794     if (*lpCmdLine == '"') /* has to be only one and only at beginning ! */
 795     {
 796       name_beg = lpCmdLine+1;
 797       p = strchr ( lpCmdLine+1, '"' );
 798       if (p)
 799       {
 800           name_end = p;
 801           args = strchr ( p, ' ' );
 802       }
 803       else /* yes, even valid with trailing '"' missing */
 804           name_end = lpCmdLine+strlen(lpCmdLine);
 805     }
 806     else
 807     {
 808       name_beg = lpCmdLine;
 809       args = strchr( lpCmdLine, ' ' );
 810       name_end = args ? args : lpCmdLine+strlen(lpCmdLine);
 811     }
 812
 813     if ((name_beg == lpCmdLine) && (!args))
 814     { /* just use the original cmdline string as file name */
 815         name = (LPSTR)lpCmdLine;
 816     }
 817     else
 818     {
 819         if (!(name = HeapAlloc( GetProcessHeap(), 0, name_end - name_beg + 1 )))
 820             return ERROR_NOT_ENOUGH_MEMORY;
 821         memcpy( name, name_beg, name_end - name_beg );
 822         name[name_end - name_beg] = '\0';
 823     }
 824
 825     if (args)
 826     {
 827         args++;
 828         arglen = strlen(args);
 829         cmdline = HeapAlloc( GetProcessHeap(), 0, 2 + arglen );
 830         cmdline[0] = (BYTE)arglen;
 831         strcpy( cmdline + 1, args );
 832     }
 833     else
 834     {
 835         cmdline = HeapAlloc( GetProcessHeap(), 0, 2 );
 836         cmdline[0] = cmdline[1] = 0;
 837     }
 838
 839     TRACE("name: '%s', cmdline: '%.*s'\n", name, cmdline[0], &cmdline[1]);
 840
 841     if (SearchPathA( NULL, name, ".exe", sizeof(buffer), buffer, NULL ))
 842     {
 843         LOADPARAMS16 params;
 844         WORD showCmd[2];
 845         showCmd[0] = 2;
 846         showCmd[1] = nCmdShow;
 847
 848         params.hEnvironment = 0;
 849         params.cmdLine = MapLS( cmdline );
 850         params.showCmd = MapLS( showCmd );
 851         params.reserved = 0;
 852
 853         ret = LoadModule16( buffer, &params );
 854         UnMapLS( params.cmdLine );
 855         UnMapLS( params.showCmd );
 856     }
 857     else ret = GetLastError();
 858
 859     HeapFree( GetProcessHeap(), 0, cmdline );
 860     if (name != lpCmdLine) HeapFree( GetProcessHeap(), 0, name );
 861
 862     if (ret == 21)  /* 32-bit module */
 863     {
 864         DWORD count;
 865         ReleaseThunkLock( &count );
 866         ret = LOWORD( WinExec( lpCmdLine, nCmdShow ) );
 867         RestoreThunkLock( count );
 868     }
 869     return ret;
 870 }
 871
 872 /***********************************************************************
 873  *           WinExec   (KERNEL32.@)
 874  */
 875 HINSTANCE WINAPI WinExec( LPCSTR lpCmdLine, UINT nCmdShow )
 876 {
 877     PROCESS_INFORMATION info;
 878     STARTUPINFOA startup;
 879     HINSTANCE hInstance;
 880     char *cmdline;
 881
 882     memset( &startup, 0, sizeof(startup) );
 883     startup.cb = sizeof(startup);
 884     startup.dwFlags = STARTF_USESHOWWINDOW;
 885     startup.wShowWindow = nCmdShow;
 886
 887     /* cmdline needs to be writeable for CreateProcess */
 888     if (!(cmdline = HeapAlloc( GetProcessHeap(), 0, strlen(lpCmdLine)+1 ))) return 0;
 889     strcpy( cmdline, lpCmdLine );
 890
 891     if (CreateProcessA( NULL, cmdline, NULL, NULL, FALSE,
 892                         0, NULL, NULL, &startup, &info ))
 893     {
 894         /* Give 30 seconds to the app to come up */
 895         if (wait_input_idle( info.hProcess, 30000 ) == 0xFFFFFFFF)
 896             WARN("WaitForInputIdle failed: Error %ld\n", GetLastError() );
 897         hInstance = (HINSTANCE)33;
 898         /* Close off the handles */
 899         CloseHandle( info.hThread );
 900         CloseHandle( info.hProcess );
 901     }
 902     else if ((hInstance = (HINSTANCE)GetLastError()) >= (HINSTANCE)32)
 903     {
 904         FIXME("Strange error set by CreateProcess: %d\n", hInstance );
 905         hInstance = (HINSTANCE)11;
 906     }
 907     HeapFree( GetProcessHeap(), 0, cmdline );
 908     return hInstance;
 909 }
 910
 911 /**********************************************************************
 912  *          LoadModule    (KERNEL32.@)
 913  */
 914 HINSTANCE WINAPI LoadModule( LPCSTR name, LPVOID paramBlock )
 915 {
 916     LOADPARAMS *params = (LOADPARAMS *)paramBlock;
 917     PROCESS_INFORMATION info;
 918     STARTUPINFOA startup;
 919     HINSTANCE hInstance;
 920     LPSTR cmdline, p;
 921     char filename[MAX_PATH];
 922     BYTE len;
 923
 924     if (!name) return (HINSTANCE)ERROR_FILE_NOT_FOUND;
 925
 926     if (!SearchPathA( NULL, name, ".exe", sizeof(filename), filename, NULL ) &&
 927         !SearchPathA( NULL, name, NULL, sizeof(filename), filename, NULL ))
 928         return (HINSTANCE)GetLastError();
 929
 930     len = (BYTE)params->lpCmdLine[0];
 931     if (!(cmdline = HeapAlloc( GetProcessHeap(), 0, strlen(filename) + len + 2 )))
 932         return (HINSTANCE)ERROR_NOT_ENOUGH_MEMORY;
 933
 934     strcpy( cmdline, filename );
 935     p = cmdline + strlen(cmdline);
 936     *p++ = ' ';
 937     memcpy( p, params->lpCmdLine + 1, len );
 938     p[len] = 0;
 939
 940     memset( &startup, 0, sizeof(startup) );
 941     startup.cb = sizeof(startup);
 942     if (params->lpCmdShow)
 943     {
 944         startup.dwFlags = STARTF_USESHOWWINDOW;
 945         startup.wShowWindow = params->lpCmdShow[1];
 946     }
 947
 948     if (CreateProcessA( filename, cmdline, NULL, NULL, FALSE, 0,
 949                         params->lpEnvAddress, NULL, &startup, &info ))
 950     {
 951         /* Give 30 seconds to the app to come up */
 952         if (wait_input_idle( info.hProcess, 30000 ) ==  0xFFFFFFFF )
 953             WARN("WaitForInputIdle failed: Error %ld\n", GetLastError() );
 954         hInstance = (HINSTANCE)33;
 955         /* Close off the handles */
 956         CloseHandle( info.hThread );
 957         CloseHandle( info.hProcess );
 958     }
 959     else if ((hInstance = (HINSTANCE)GetLastError()) >= (HINSTANCE)32)
 960     {
 961         FIXME("Strange error set by CreateProcess: %d\n", hInstance );
 962         hInstance = (HINSTANCE)11;
 963     }
 964
 965     HeapFree( GetProcessHeap(), 0, cmdline );
 966     return hInstance;
 967 }
 968
 969
 970 /*************************************************************************
 971  *               get_file_name
 972  *
 973  * Helper for CreateProcess: retrieve the file name to load from the
 974  * app name and command line. Store the file name in buffer, and
 975  * return a possibly modified command line.
 976  */
 977 static LPSTR get_file_name( LPCSTR appname, LPSTR cmdline, LPSTR buffer, int buflen )
 978 {
 979     char *name, *pos, *ret = NULL;
 980     const char *p;
 981
 982     /* if we have an app name, everything is easy */
 983
 984     if (appname)
 985     {
 986         /* use the unmodified app name as file name */
 987         lstrcpynA( buffer, appname, buflen );
 988         if (!(ret = cmdline))
 989         {
 990             /* no command-line, create one */
 991             if ((ret = HeapAlloc( GetProcessHeap(), 0, strlen(appname) + 3 )))
 992                 sprintf( ret, "\"%s\"", appname );
 993         }
 994         return ret;
 995     }
 996
 997     if (!cmdline)
 998     {
 999         SetLastError( ERROR_INVALID_PARAMETER );
1000         return NULL;
1001     }
1002
1003     /* first check for a quoted file name */
1004
1005     if ((cmdline[0] == '"') && ((p = strchr( cmdline + 1, '"' ))))
1006     {
1007         int len = p - cmdline - 1;
1008         /* extract the quoted portion as file name */
1009         if (!(name = HeapAlloc( GetProcessHeap(), 0, len + 1 ))) return NULL;
1010         memcpy( name, cmdline + 1, len );
1011         name[len] = 0;
1012
1013         if (SearchPathA( NULL, name, ".exe", buflen, buffer, NULL ) ||
1014             SearchPathA( NULL, name, NULL, buflen, buffer, NULL ))
1015             ret = cmdline;  /* no change necessary */
1016         goto done;
1017     }
1018
1019     /* now try the command-line word by word */
1020
1021     if (!(name = HeapAlloc( GetProcessHeap(), 0, strlen(cmdline) + 1 ))) return NULL;
1022     pos = name;
1023     p = cmdline;
1024
1025     while (*p)
1026     {
1027         do *pos++ = *p++; while (*p && *p != ' ');
1028         *pos = 0;
1029         TRACE("trying '%s'\n", name );
1030         if (SearchPathA( NULL, name, ".exe", buflen, buffer, NULL ) ||
1031             SearchPathA( NULL, name, NULL, buflen, buffer, NULL ))
1032         {
1033             ret = cmdline;
1034             break;
1035         }
1036     }
1037
1038     if (!ret || !strchr( name, ' ' )) goto done;  /* no change necessary */
1039
1040     /* now build a new command-line with quotes */
1041
1042     if (!(ret = HeapAlloc( GetProcessHeap(), 0, strlen(cmdline) + 3 ))) goto done;
1043     sprintf( ret, "\"%s\"%s", name, p );
1044
1045  done:
1046     HeapFree( GetProcessHeap(), 0, name );
1047     return ret;
1048 }
1049
1050
1051 /**********************************************************************
1052  *       CreateProcessA          (KERNEL32.@)
1053  */
1054 BOOL WINAPI CreateProcessA( LPCSTR lpApplicationName, LPSTR lpCommandLine,
1055                             LPSECURITY_ATTRIBUTES lpProcessAttributes,
1056                             LPSECURITY_ATTRIBUTES lpThreadAttributes,
1057                             BOOL bInheritHandles, DWORD dwCreationFlags,
1058                             LPVOID lpEnvironment, LPCSTR lpCurrentDirectory,
1059                             LPSTARTUPINFOA lpStartupInfo,
1060                             LPPROCESS_INFORMATION lpProcessInfo )
1061 {
1062     BOOL retv = FALSE;
1063     HANDLE hFile;
1064     DWORD type;
1065     char name[MAX_PATH];
1066     LPSTR tidy_cmdline;
1067
1068     /* Process the AppName and/or CmdLine to get module name and path */
1069
1070     TRACE("app %s cmdline %s\n", debugstr_a(lpApplicationName), debugstr_a(lpCommandLine) );
1071
1072     if (!(tidy_cmdline = get_file_name( lpApplicationName, lpCommandLine, name, sizeof(name) )))
1073         return FALSE;
1074
1075     /* Warn if unsupported features are used */
1076
1077     if (dwCreationFlags & NORMAL_PRIORITY_CLASS)
1078         FIXME("(%s,...): NORMAL_PRIORITY_CLASS ignored\n", name);
1079     if (dwCreationFlags & IDLE_PRIORITY_CLASS)
1080         FIXME("(%s,...): IDLE_PRIORITY_CLASS ignored\n", name);
1081     if (dwCreationFlags & HIGH_PRIORITY_CLASS)
1082         FIXME("(%s,...): HIGH_PRIORITY_CLASS ignored\n", name);
1083     if (dwCreationFlags & REALTIME_PRIORITY_CLASS)
1084         FIXME("(%s,...): REALTIME_PRIORITY_CLASS ignored\n", name);
1085     if (dwCreationFlags & CREATE_NEW_PROCESS_GROUP)
1086         FIXME("(%s,...): CREATE_NEW_PROCESS_GROUP ignored\n", name);
1087     if (dwCreationFlags & CREATE_UNICODE_ENVIRONMENT)
1088         FIXME("(%s,...): CREATE_UNICODE_ENVIRONMENT ignored\n", name);
1089     if (dwCreationFlags & CREATE_SEPARATE_WOW_VDM)
1090         FIXME("(%s,...): CREATE_SEPARATE_WOW_VDM ignored\n", name);
1091     if (dwCreationFlags & CREATE_SHARED_WOW_VDM)
1092         FIXME("(%s,...): CREATE_SHARED_WOW_VDM ignored\n", name);
1093     if (dwCreationFlags & CREATE_DEFAULT_ERROR_MODE)
1094         FIXME("(%s,...): CREATE_DEFAULT_ERROR_MODE ignored\n", name);
1095     if (dwCreationFlags & CREATE_NO_WINDOW)
1096         FIXME("(%s,...): CREATE_NO_WINDOW ignored\n", name);
1097     if (dwCreationFlags & PROFILE_USER)
1098         FIXME("(%s,...): PROFILE_USER ignored\n", name);
1099     if (dwCreationFlags & PROFILE_KERNEL)
1100         FIXME("(%s,...): PROFILE_KERNEL ignored\n", name);
1101     if (dwCreationFlags & PROFILE_SERVER)
1102         FIXME("(%s,...): PROFILE_SERVER ignored\n", name);
1103     if (lpStartupInfo->lpDesktop)
1104         FIXME("(%s,...): lpStartupInfo->lpDesktop %s ignored\n",
1105                       name, debugstr_a(lpStartupInfo->lpDesktop));
1106     if (lpStartupInfo->dwFlags & STARTF_RUNFULLSCREEN)
1107         FIXME("(%s,...): STARTF_RUNFULLSCREEN ignored\n", name);
1108     if (lpStartupInfo->dwFlags & STARTF_FORCEONFEEDBACK)
1109         FIXME("(%s,...): STARTF_FORCEONFEEDBACK ignored\n", name);
1110     if (lpStartupInfo->dwFlags & STARTF_FORCEOFFFEEDBACK)
1111         FIXME("(%s,...): STARTF_FORCEOFFFEEDBACK ignored\n", name);
1112     if (lpStartupInfo->dwFlags & STARTF_USEHOTKEY)
1113         FIXME("(%s,...): STARTF_USEHOTKEY ignored\n", name);
1114
1115     /* Open file and determine executable type */
1116
1117     hFile = CreateFileA( name, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, 0, 0 );
1118     if (hFile == INVALID_HANDLE_VALUE) goto done;
1119
1120     if ( !MODULE_GetBinaryType( hFile, name, &type ) )
1121     { /* unknown file, try as unix executable */
1122         CloseHandle( hFile );
1123         retv = PROCESS_Create( 0, name, tidy_cmdline, lpEnvironment,
1124                                lpProcessAttributes, lpThreadAttributes,
1125                                bInheritHandles, dwCreationFlags,
1126                                lpStartupInfo, lpProcessInfo, lpCurrentDirectory );
1127         goto done;
1128     }
1129
1130     /* Create process */
1131
1132     switch ( type )
1133     {
1134     case SCS_32BIT_BINARY:
1135     case SCS_WOW_BINARY:
1136     case SCS_DOS_BINARY:
1137         retv = PROCESS_Create( hFile, name, tidy_cmdline, lpEnvironment,
1138                                lpProcessAttributes, lpThreadAttributes,
1139                                bInheritHandles, dwCreationFlags,
1140                                lpStartupInfo, lpProcessInfo, lpCurrentDirectory);
1141         break;
1142
1143     case SCS_PIF_BINARY:
1144     case SCS_POSIX_BINARY:
1145     case SCS_OS216_BINARY:
1146         FIXME("Unsupported executable type: %ld\n", type );
1147         /* fall through */
1148
1149     default:
1150         SetLastError( ERROR_BAD_FORMAT );
1151         break;
1152     }
1153     CloseHandle( hFile );
1154
1155  done:
1156     if (tidy_cmdline != lpCommandLine) HeapFree( GetProcessHeap(), 0, tidy_cmdline );
1157     return retv;
1158 }
1159
1160 /**********************************************************************
1161  *       CreateProcessW          (KERNEL32.@)
1162  * NOTES
1163  *  lpReserved is not converted
1164  */
1165 BOOL WINAPI CreateProcessW( LPCWSTR lpApplicationName, LPWSTR lpCommandLine,
1166                                 LPSECURITY_ATTRIBUTES lpProcessAttributes,
1167                                 LPSECURITY_ATTRIBUTES lpThreadAttributes,
1168                                 BOOL bInheritHandles, DWORD dwCreationFlags,
1169                                 LPVOID lpEnvironment, LPCWSTR lpCurrentDirectory,
1170                                 LPSTARTUPINFOW lpStartupInfo,
1171                                 LPPROCESS_INFORMATION lpProcessInfo )
1172 {   BOOL ret;
1173     STARTUPINFOA StartupInfoA;
1174
1175     LPSTR lpApplicationNameA = HEAP_strdupWtoA (GetProcessHeap(),0,lpApplicationName);
1176     LPSTR lpCommandLineA = HEAP_strdupWtoA (GetProcessHeap(),0,lpCommandLine);
1177     LPSTR lpCurrentDirectoryA = HEAP_strdupWtoA (GetProcessHeap(),0,lpCurrentDirectory);
1178
1179     memcpy (&StartupInfoA, lpStartupInfo, sizeof(STARTUPINFOA));
1180     StartupInfoA.lpDesktop = HEAP_strdupWtoA (GetProcessHeap(),0,lpStartupInfo->lpDesktop);
1181     StartupInfoA.lpTitle = HEAP_strdupWtoA (GetProcessHeap(),0,lpStartupInfo->lpTitle);
1182
1183     TRACE_(win32)("(%s,%s,...)\n", debugstr_w(lpApplicationName), debugstr_w(lpCommandLine));
1184
1185     if (lpStartupInfo->lpReserved)
1186       FIXME_(win32)("StartupInfo.lpReserved is used, please report (%s)\n", debugstr_w(lpStartupInfo->lpReserved));
1187
1188     ret = CreateProcessA(  lpApplicationNameA,  lpCommandLineA,
1189                              lpProcessAttributes, lpThreadAttributes,
1190                              bInheritHandles, dwCreationFlags,
1191                              lpEnvironment, lpCurrentDirectoryA,
1192                              &StartupInfoA, lpProcessInfo );
1193
1194     HeapFree( GetProcessHeap(), 0, lpCurrentDirectoryA );
1195     HeapFree( GetProcessHeap(), 0, lpCommandLineA );
1196     HeapFree( GetProcessHeap(), 0, StartupInfoA.lpDesktop );
1197     HeapFree( GetProcessHeap(), 0, StartupInfoA.lpTitle );
1198
1199     return ret;
1200 }
1201
1202 /***********************************************************************
1203  *              GetModuleHandleA         (KERNEL32.@)
1204  *              GetModuleHandle32        (KERNEL.488)
1205  */
1206 HMODULE WINAPI GetModuleHandleA(LPCSTR module)
1207 {
1208     WINE_MODREF *wm;
1209
1210     if ( module == NULL )
1211         wm = exe_modref;
1212     else
1213         wm = MODULE_FindModule( module );
1214
1215     return wm? wm->module : 0;
1216 }
1217
1218 /***********************************************************************
1219  *              GetModuleHandleW (KERNEL32.@)
1220  */
1221 HMODULE WINAPI GetModuleHandleW(LPCWSTR module)
1222 {
1223     HMODULE hModule;
1224     LPSTR modulea = HEAP_strdupWtoA( GetProcessHeap(), 0, module );
1225     hModule = GetModuleHandleA( modulea );
1226     HeapFree( GetProcessHeap(), 0, modulea );
1227     return hModule;
1228 }
1229
1230
1231 /***********************************************************************
1232  *              GetModuleFileNameA      (KERNEL32.@)
1233  *              GetModuleFileName32     (KERNEL.487)
1234  *
1235  * GetModuleFileNameA seems to *always* return the long path;
1236  * it's only GetModuleFileName16 that decides between short/long path
1237  * by checking if exe version >= 4.0.
1238  * (SDK docu doesn't mention this)
1239  */
1240 DWORD WINAPI GetModuleFileNameA(
1241         HMODULE hModule,        /* [in] module handle (32bit) */
1242         LPSTR lpFileName,       /* [out] filenamebuffer */
1243         DWORD size )            /* [in] size of filenamebuffer */
1244 {
1245     WINE_MODREF *wm;
1246
1247     RtlEnterCriticalSection( &loader_section );
1248
1249     lpFileName[0] = 0;
1250     if ((wm = MODULE32_LookupHMODULE( hModule )))
1251         lstrcpynA( lpFileName, wm->filename, size );
1252
1253     RtlLeaveCriticalSection( &loader_section );
1254     TRACE("%s\n", lpFileName );
1255     return strlen(lpFileName);
1256 }
1257
1258
1259 /***********************************************************************
1260  *              GetModuleFileNameW      (KERNEL32.@)
1261  */
1262 DWORD WINAPI GetModuleFileNameW( HMODULE hModule, LPWSTR lpFileName,
1263                                    DWORD size )
1264 {
1265     LPSTR fnA = (char*)HeapAlloc( GetProcessHeap(), 0, size );
1266     DWORD res = GetModuleFileNameA( hModule, fnA, size );
1267     if (size > 0 && !MultiByteToWideChar( CP_ACP, 0, fnA, -1, lpFileName, size ))
1268         lpFileName[size-1] = 0;
1269     HeapFree( GetProcessHeap(), 0, fnA );
1270     return res;
1271 }
1272
1273
1274 /***********************************************************************
1275  *           LoadLibraryExA   (KERNEL32.@)
1276  */
1277 HMODULE WINAPI LoadLibraryExA(LPCSTR libname, HANDLE hfile, DWORD flags)
1278 {
1279         WINE_MODREF *wm;
1280
1281         if(!libname)
1282         {
1283                 SetLastError(ERROR_INVALID_PARAMETER);
1284                 return 0;
1285         }
1286
1287         if (flags & LOAD_LIBRARY_AS_DATAFILE)
1288         {
1289             char filename[256];
1290             HMODULE hmod = 0;
1291
1292             /* This method allows searching for the 'native' libraries only */
1293             if (SearchPathA( NULL, libname, ".dll", sizeof(filename), filename, NULL ))
1294             {
1295                 /* FIXME: maybe we should use the hfile parameter instead */
1296                 HANDLE hFile = CreateFileA( filename, GENERIC_READ, FILE_SHARE_READ,
1297                                             NULL, OPEN_EXISTING, 0, 0 );
1298                 if (hFile != INVALID_HANDLE_VALUE)
1299                 {
1300                     DWORD type;
1301                     MODULE_GetBinaryType( hFile, filename, &type );
1302                     if (type == SCS_32BIT_BINARY)
1303                     {
1304                         HANDLE mapping = CreateFileMappingA( hFile, NULL, PAGE_READONLY,
1305                                                              0, 0, NULL );
1306                         if (mapping)
1307                         {
1308                             hmod = (HMODULE)MapViewOfFile( mapping, FILE_MAP_READ, 0, 0, 0 );
1309                             CloseHandle( mapping );
1310                         }
1311                     }
1312                     CloseHandle( hFile );
1313                 }
1314                 if (hmod) return (HMODULE)((ULONG_PTR)hmod + 1);
1315             }
1316             flags |= DONT_RESOLVE_DLL_REFERENCES; /* Just in case */
1317             /* Fallback to normal behaviour */
1318         }
1319
1320         RtlEnterCriticalSection( &loader_section );
1321
1322         wm = MODULE_LoadLibraryExA( libname, hfile, flags );
1323         if ( wm )
1324         {
1325                 if ( !MODULE_DllProcessAttach( wm, NULL ) )
1326                 {
1327                         WARN_(module)("Attach failed for module '%s'.\n", libname);
1328                         MODULE_FreeLibrary(wm);
1329                         SetLastError(ERROR_DLL_INIT_FAILED);
1330                         wm = NULL;
1331                 }
1332         }
1333
1334         RtlLeaveCriticalSection( &loader_section );
1335         return wm ? wm->module : 0;
1336 }
1337
1338 /***********************************************************************
1339  *      allocate_lib_dir
1340  *
1341  * helper for MODULE_LoadLibraryExA.  Allocate space to hold the directory
1342  * portion of the provided name and put the name in it.
1343  *
1344  */
1345 static LPCSTR allocate_lib_dir(LPCSTR libname)
1346 {
1347     LPCSTR p, pmax;
1348     LPSTR result;
1349     int length;
1350
1351     pmax = libname;
1352     if ((p = strrchr( pmax, '\\' ))) pmax = p + 1;
1353     if ((p = strrchr( pmax, '/' ))) pmax = p + 1; /* Naughty.  MSDN says don't */
1354     if (pmax == libname && pmax[0] && pmax[1] == ':') pmax += 2;
1355
1356     length = pmax - libname;
1357
1358     result = HeapAlloc (GetProcessHeap(), 0, length+1);
1359
1360     if (result)
1361     {
1362         strncpy (result, libname, length);
1363         result [length] = '\0';
1364     }
1365
1366     return result;
1367 }
1368
1369 /***********************************************************************
1370  *      MODULE_LoadLibraryExA   (internal)
1371  *
1372  * Load a PE style module according to the load order.
1373  *
1374  * The HFILE parameter is not used and marked reserved in the SDK. I can
1375  * only guess that it should force a file to be mapped, but I rather
1376  * ignore the parameter because it would be extremely difficult to
1377  * integrate this with different types of module representations.
1378  *
1379  * libdir is used to support LOAD_WITH_ALTERED_SEARCH_PATH during the recursion
1380  *        on this function.  When first called from LoadLibraryExA it will be
1381  *        NULL but thereafter it may point to a buffer containing the path
1382  *        portion of the library name.  Note that the recursion all occurs
1383  *        within a Critical section (see LoadLibraryExA) so the use of a
1384  *        static is acceptable.
1385  *        (We have to use a static variable at some point anyway, to pass the
1386  *        information from BUILTIN32_dlopen through dlopen and the builtin's
1387  *        init function into load_library).
1388  * allocated_libdir is TRUE in the stack frame that allocated libdir
1389  */
1390 WINE_MODREF *MODULE_LoadLibraryExA( LPCSTR libname, HFILE hfile, DWORD flags )
1391 {
1392         DWORD err = GetLastError();
1393         WINE_MODREF *pwm;
1394         int i;
1395         enum loadorder_type loadorder[LOADORDER_NTYPES];
1396         LPSTR filename, p;
1397         const char *filetype = "";
1398         DWORD found;
1399         BOOL allocated_libdir = FALSE;
1400         static LPCSTR libdir = NULL; /* See above */
1401
1402         if ( !libname ) return NULL;
1403
1404         filename = HeapAlloc ( GetProcessHeap(), 0, MAX_PATH + 1 );
1405         if ( !filename ) return NULL;
1406         *filename = 0; /* Just in case we don't set it before goto error */
1407
1408         RtlEnterCriticalSection( &loader_section );
1409
1410         if ((flags & LOAD_WITH_ALTERED_SEARCH_PATH) && FILE_contains_path(libname))
1411         {
1412             if (!(libdir = allocate_lib_dir(libname))) goto error;
1413             allocated_libdir = TRUE;
1414         }
1415
1416         if (!libdir || allocated_libdir)
1417             found = SearchPathA(NULL, libname, ".dll", MAX_PATH, filename, NULL);
1418         else
1419             found = DIR_SearchAlternatePath(libdir, libname, ".dll", MAX_PATH, filename, NULL);
1420
1421         /* build the modules filename */
1422         if (!found)
1423         {
1424             if ( ! GetSystemDirectoryA ( filename, MAX_PATH ) )
1425                 goto error;
1426
1427             /* if the library name contains a path and can not be found,
1428              * return an error.
1429              * exception: if the path is the system directory, proceed,
1430              * so that modules which are not PE modules can be loaded.
1431              * If the library name does not contain a path and can not
1432              * be found, assume the system directory is meant */
1433
1434             if ( ! FILE_strncasecmp ( filename, libname, strlen ( filename ) ))
1435                 strcpy ( filename, libname );
1436             else
1437             {
1438                 if (FILE_contains_path(libname)) goto error;
1439                 strcat ( filename, "\\" );
1440                 strcat ( filename, libname );
1441             }
1442
1443             /* if the filename doesn't have an extension, append .DLL */
1444             if (!(p = strrchr( filename, '.')) || strchr( p, '/' ) || strchr( p, '\\'))
1445                 strcat( filename, ".dll" );
1446         }
1447
1448         /* Check for already loaded module */
1449         if (!(pwm = MODULE_FindModule(filename)) && !FILE_contains_path(libname))
1450         {
1451             LPSTR       fn = HeapAlloc ( GetProcessHeap(), 0, MAX_PATH + 1 );
1452             if (fn)
1453             {
1454                 /* since the default loading mechanism uses a more detailed algorithm
1455                  * than SearchPath (like using PATH, which can even be modified between
1456                  * two attempts of loading the same DLL), the look-up above (with
1457                  * SearchPath) can have put the file in system directory, whereas it
1458                  * has already been loaded but with a different path. So do a specific
1459                  * look-up with filename (without any path)
1460                  */
1461                 strcpy ( fn, libname );
1462                 /* if the filename doesn't have an extension append .DLL */
1463                 if (!strrchr( fn, '.')) strcat( fn, ".dll" );
1464                 if ((pwm = MODULE_FindModule( fn )) != NULL)
1465                    strcpy( filename, fn );
1466                 HeapFree( GetProcessHeap(), 0, fn );
1467             }
1468         }
1469         if (pwm)
1470         {
1471                 if(!(pwm->flags & WINE_MODREF_MARKER))
1472                         pwm->refCount++;
1473
1474                 if ((pwm->flags & WINE_MODREF_DONT_RESOLVE_REFS) &&
1475                     !(flags & DONT_RESOLVE_DLL_REFERENCES))
1476                 {
1477                     pwm->flags &= ~WINE_MODREF_DONT_RESOLVE_REFS;
1478                     PE_fixup_imports( pwm );
1479                 }
1480                 TRACE("Already loaded module '%s' at 0x%08x, count=%d\n", filename, pwm->module, pwm->refCount);
1481                 if (allocated_libdir)
1482                 {
1483                     HeapFree ( GetProcessHeap(), 0, (LPSTR)libdir );
1484                     libdir = NULL;
1485                 }
1486                 RtlLeaveCriticalSection( &loader_section );
1487                 HeapFree ( GetProcessHeap(), 0, filename );
1488                 return pwm;
1489         }
1490
1491         MODULE_GetLoadOrder( loadorder, filename, TRUE);
1492
1493         for(i = 0; i < LOADORDER_NTYPES; i++)
1494         {
1495                 if (loadorder[i] == LOADORDER_INVALID) break;
1496                 SetLastError( ERROR_FILE_NOT_FOUND );
1497
1498                 switch(loadorder[i])
1499                 {
1500                 case LOADORDER_DLL:
1501                         TRACE("Trying native dll '%s'\n", filename);
1502                         pwm = PE_LoadLibraryExA(filename, flags);
1503                         filetype = "native";
1504                         break;
1505
1506                 case LOADORDER_SO:
1507                         TRACE("Trying so-library '%s'\n", filename);
1508                         pwm = ELF_LoadLibraryExA(filename, flags);
1509                         filetype = "so";
1510                         break;
1511
1512                 case LOADORDER_BI:
1513                         TRACE("Trying built-in '%s'\n", filename);
1514                         pwm = BUILTIN32_LoadLibraryExA(filename, flags);
1515                         filetype = "builtin";
1516                         break;
1517
1518                 default:
1519                         pwm = NULL;
1520                         break;
1521                 }
1522
1523                 if(pwm)
1524                 {
1525                         /* Initialize DLL just loaded */
1526                         TRACE("Loaded module '%s' at 0x%08x\n", filename, pwm->module);
1527                         if (!TRACE_ON(module))
1528                             TRACE_(loaddll)("Loaded module '%s' : %s\n", filename, filetype);
1529                         /* Set the refCount here so that an attach failure will */
1530                         /* decrement the dependencies through the MODULE_FreeLibrary call. */
1531                         pwm->refCount++;
1532
1533                         if (allocated_libdir)
1534                         {
1535                             HeapFree ( GetProcessHeap(), 0, (LPSTR)libdir );
1536                             libdir = NULL;
1537                         }
1538                         RtlLeaveCriticalSection( &loader_section );
1539                         SetLastError( err );  /* restore last error */
1540                         HeapFree ( GetProcessHeap(), 0, filename );
1541                         return pwm;
1542                 }
1543
1544                 if(GetLastError() != ERROR_FILE_NOT_FOUND)
1545                 {
1546                     ERR("Loading of %s DLL %s failed (error %ld), check this file.\n",
1547                         filetype, filename, GetLastError());
1548                     break;
1549                 }
1550         }
1551
1552  error:
1553         if (allocated_libdir)
1554         {
1555             HeapFree ( GetProcessHeap(), 0, (LPSTR)libdir );
1556             libdir = NULL;
1557         }
1558         RtlLeaveCriticalSection( &loader_section );
1559         WARN("Failed to load module '%s'; error=%ld\n", filename, GetLastError());
1560         HeapFree ( GetProcessHeap(), 0, filename );
1561         return NULL;
1562 }
1563
1564 /***********************************************************************
1565  *           LoadLibraryA         (KERNEL32.@)
1566  */
1567 HMODULE WINAPI LoadLibraryA(LPCSTR libname) {
1568         return LoadLibraryExA(libname,0,0);
1569 }
1570
1571 /***********************************************************************
1572  *           LoadLibraryW         (KERNEL32.@)
1573  */
1574 HMODULE WINAPI LoadLibraryW(LPCWSTR libnameW)
1575 {
1576     return LoadLibraryExW(libnameW,0,0);
1577 }
1578
1579 /***********************************************************************
1580  *           LoadLibrary32        (KERNEL.452)
1581  *           LoadSystemLibrary32  (KERNEL.482)
1582  */
1583 HMODULE WINAPI LoadLibrary32_16( LPCSTR libname )
1584 {
1585     HMODULE hModule;
1586     DWORD count;
1587
1588     ReleaseThunkLock( &count );
1589     hModule = LoadLibraryA( libname );
1590     RestoreThunkLock( count );
1591     return hModule;
1592 }
1593
1594 /***********************************************************************
1595  *           LoadLibraryExW       (KERNEL32.@)
1596  */
1597 HMODULE WINAPI LoadLibraryExW(LPCWSTR libnameW,HANDLE hfile,DWORD flags)
1598 {
1599     LPSTR libnameA = HEAP_strdupWtoA( GetProcessHeap(), 0, libnameW );
1600     HMODULE ret = LoadLibraryExA( libnameA , hfile, flags );
1601
1602     HeapFree( GetProcessHeap(), 0, libnameA );
1603     return ret;
1604 }
1605
1606 /***********************************************************************
1607  *           MODULE_FlushModrefs
1608  *
1609  * NOTE: Assumes that the process critical section is held!
1610  *
1611  * Remove all unused modrefs and call the internal unloading routines
1612  * for the library type.
1613  */
1614 static void MODULE_FlushModrefs(void)
1615 {
1616         WINE_MODREF *wm, *next;
1617
1618         for(wm = MODULE_modref_list; wm; wm = next)
1619         {
1620                 next = wm->next;
1621
1622                 if(wm->refCount)
1623                         continue;
1624
1625                 /* Unlink this modref from the chain */
1626                 if(wm->next)
1627                         wm->next->prev = wm->prev;
1628                 if(wm->prev)
1629                         wm->prev->next = wm->next;
1630                 if(wm == MODULE_modref_list)
1631                         MODULE_modref_list = wm->next;
1632
1633                 TRACE(" unloading %s\n", wm->filename);
1634                 if (wm->dlhandle) wine_dll_unload( wm->dlhandle );
1635                 else UnmapViewOfFile( (LPVOID)wm->module );
1636                 FreeLibrary16(wm->hDummyMod);
1637                 HeapFree( GetProcessHeap(), 0, wm->deps );
1638                 HeapFree( GetProcessHeap(), 0, wm );
1639         }
1640 }
1641
1642 /***********************************************************************
1643  *           FreeLibrary   (KERNEL32.@)
1644  *           FreeLibrary32 (KERNEL.486)
1645  */
1646 BOOL WINAPI FreeLibrary(HINSTANCE hLibModule)
1647 {
1648     BOOL retv = FALSE;
1649     WINE_MODREF *wm;
1650
1651     if (!hLibModule)
1652     {
1653         SetLastError( ERROR_INVALID_HANDLE );
1654         return FALSE;
1655     }
1656
1657     if ((ULONG_PTR)hLibModule & 1)
1658     {
1659         /* this is a LOAD_LIBRARY_AS_DATAFILE module */
1660         char *ptr = (char *)hLibModule - 1;
1661         UnmapViewOfFile( ptr );
1662         return TRUE;
1663     }
1664
1665     RtlEnterCriticalSection( &loader_section );
1666     free_lib_count++;
1667
1668     if ((wm = MODULE32_LookupHMODULE( hLibModule ))) retv = MODULE_FreeLibrary( wm );
1669
1670     free_lib_count--;
1671     RtlLeaveCriticalSection( &loader_section );
1672
1673     return retv;
1674 }
1675
1676 /***********************************************************************
1677  *           MODULE_DecRefCount
1678  *
1679  * NOTE: Assumes that the process critical section is held!
1680  */
1681 static void MODULE_DecRefCount( WINE_MODREF *wm )
1682 {
1683     int i;
1684
1685     if ( wm->flags & WINE_MODREF_MARKER )
1686         return;
1687
1688     if ( wm->refCount <= 0 )
1689         return;
1690
1691     --wm->refCount;
1692     TRACE("(%s) refCount: %d\n", wm->modname, wm->refCount );
1693
1694     if ( wm->refCount == 0 )
1695     {
1696         wm->flags |= WINE_MODREF_MARKER;
1697
1698         for ( i = 0; i < wm->nDeps; i++ )
1699             if ( wm->deps[i] )
1700                 MODULE_DecRefCount( wm->deps[i] );
1701
1702         wm->flags &= ~WINE_MODREF_MARKER;
1703     }
1704 }
1705
1706 /***********************************************************************
1707  *           MODULE_FreeLibrary
1708  *
1709  * NOTE: Assumes that the process critical section is held!
1710  */
1711 BOOL MODULE_FreeLibrary( WINE_MODREF *wm )
1712 {
1713     TRACE("(%s) - START\n", wm->modname );
1714
1715     /* Recursively decrement reference counts */
1716     MODULE_DecRefCount( wm );
1717
1718     /* Call process detach notifications */
1719     if ( free_lib_count <= 1 )
1720     {
1721         MODULE_DllProcessDetach( FALSE, NULL );
1722         SERVER_START_REQ( unload_dll )
1723         {
1724             req->base = (void *)wm->module;
1725             wine_server_call( req );
1726         }
1727         SERVER_END_REQ;
1728         MODULE_FlushModrefs();
1729     }
1730
1731     TRACE("END\n");
1732
1733     return TRUE;
1734 }
1735
1736
1737 /***********************************************************************
1738  *           FreeLibraryAndExitThread (KERNEL32.@)
1739  */
1740 VOID WINAPI FreeLibraryAndExitThread(HINSTANCE hLibModule, DWORD dwExitCode)
1741 {
1742     FreeLibrary(hLibModule);
1743     ExitThread(dwExitCode);
1744 }
1745
1746 /***********************************************************************
1747  *           PrivateLoadLibrary       (KERNEL32.@)
1748  *
1749  * FIXME: rough guesswork, don't know what "Private" means
1750  */
1751 HINSTANCE16 WINAPI PrivateLoadLibrary(LPCSTR libname)
1752 {
1753     return LoadLibrary16(libname);
1754 }
1755
1756
1757
1758 /***********************************************************************
1759  *           PrivateFreeLibrary       (KERNEL32.@)
1760  *
1761  * FIXME: rough guesswork, don't know what "Private" means
1762  */
1763 void WINAPI PrivateFreeLibrary(HINSTANCE16 handle)
1764 {
1765     FreeLibrary16(handle);
1766 }
1767
1768
1769 /***********************************************************************
1770  *           GetProcAddress16   (KERNEL32.37)
1771  * Get procaddress in 16bit module from win32... (kernel32 undoc. ordinal func)
1772  */
1773 FARPROC16 WINAPI WIN32_GetProcAddress16( HMODULE hModule, LPCSTR name )
1774 {
1775     if (!hModule) {
1776         WARN("hModule may not be 0!\n");
1777         return (FARPROC16)0;
1778     }
1779     if (HIWORD(hModule))
1780     {
1781         WARN("hModule is Win32 handle (%08x)\n", hModule );
1782         return (FARPROC16)0;
1783     }
1784     return GetProcAddress16( LOWORD(hModule), name );
1785 }
1786
1787 /***********************************************************************
1788  *           GetProcAddress   (KERNEL.50)
1789  */
1790 FARPROC16 WINAPI GetProcAddress16( HMODULE16 hModule, LPCSTR name )
1791 {
1792     WORD ordinal;
1793     FARPROC16 ret;
1794
1795     if (!hModule) hModule = GetCurrentTask();
1796     hModule = GetExePtr( hModule );
1797
1798     if (HIWORD(name) != 0)
1799     {
1800         ordinal = NE_GetOrdinal( hModule, name );
1801         TRACE("%04x '%s'\n", hModule, name );
1802     }
1803     else
1804     {
1805         ordinal = LOWORD(name);
1806         TRACE("%04x %04x\n", hModule, ordinal );
1807     }
1808     if (!ordinal) return (FARPROC16)0;
1809
1810     ret = NE_GetEntryPoint( hModule, ordinal );
1811
1812     TRACE("returning %08x\n", (UINT)ret );
1813     return ret;
1814 }
1815
1816
1817 /***********************************************************************
1818  *           GetProcAddress             (KERNEL32.@)
1819  */
1820 FARPROC WINAPI GetProcAddress( HMODULE hModule, LPCSTR function )
1821 {
1822     return MODULE_GetProcAddress( hModule, function, TRUE );
1823 }
1824
1825 /***********************************************************************
1826  *           GetProcAddress32                   (KERNEL.453)
1827  */
1828 FARPROC WINAPI GetProcAddress32_16( HMODULE hModule, LPCSTR function )
1829 {
1830     return MODULE_GetProcAddress( hModule, function, FALSE );
1831 }
1832
1833 /***********************************************************************
1834  *           MODULE_GetProcAddress              (internal)
1835  */
1836 FARPROC MODULE_GetProcAddress(
1837         HMODULE hModule,        /* [in] current module handle */
1838         LPCSTR function,        /* [in] function to be looked up */
1839         BOOL snoop )
1840 {
1841     WINE_MODREF *wm;
1842     FARPROC     retproc = 0;
1843
1844     if (HIWORD(function))
1845         TRACE_(win32)("(%08lx,%s)\n",(DWORD)hModule,function);
1846     else
1847         TRACE_(win32)("(%08lx,%p)\n",(DWORD)hModule,function);
1848
1849     RtlEnterCriticalSection( &loader_section );
1850     if ((wm = MODULE32_LookupHMODULE( hModule )))
1851     {
1852         retproc = wm->find_export( wm, function, snoop );
1853         if (!retproc) SetLastError(ERROR_PROC_NOT_FOUND);
1854     }
1855     RtlLeaveCriticalSection( &loader_section );
1856     return retproc;
1857 }
1858
1859
1860 /***************************************************************************
1861  *              HasGPHandler                    (KERNEL.338)
1862  */
1863
1864 #include "pshpack1.h"
1865 typedef struct _GPHANDLERDEF
1866 {
1867     WORD selector;
1868     WORD rangeStart;
1869     WORD rangeEnd;
1870     WORD handler;
1871 } GPHANDLERDEF;
1872 #include "poppack.h"
1873
1874 SEGPTR WINAPI HasGPHandler16( SEGPTR address )
1875 {
1876     HMODULE16 hModule;
1877     int gpOrdinal;
1878     SEGPTR gpPtr;
1879     GPHANDLERDEF *gpHandler;
1880
1881     if (    (hModule = FarGetOwner16( SELECTOROF(address) )) != 0
1882          && (gpOrdinal = NE_GetOrdinal( hModule, "__GP" )) != 0
1883          && (gpPtr = (SEGPTR)NE_GetEntryPointEx( hModule, gpOrdinal, FALSE )) != 0
1884          && !IsBadReadPtr16( gpPtr, sizeof(GPHANDLERDEF) )
1885          && (gpHandler = MapSL( gpPtr )) != NULL )
1886     {
1887         while (gpHandler->selector)
1888         {
1889             if (    SELECTOROF(address) == gpHandler->selector
1890                  && OFFSETOF(address)   >= gpHandler->rangeStart
1891                  && OFFSETOF(address)   <  gpHandler->rangeEnd  )
1892                 return MAKESEGPTR( gpHandler->selector, gpHandler->handler );
1893             gpHandler++;
1894         }
1895     }
1896
1897     return 0;
1898 }
1899