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 "windef.h"
  15 #include "wine/winbase16.h"
  16 #include "winerror.h"
  17 #include "file.h"
  18 #include "global.h"
  19 #include "heap.h"
  20 #include "module.h"
  21 #include "snoop.h"
  22 #include "neexe.h"
  23 #include "pe_image.h"
  24 #include "dosexe.h"
  25 #include "process.h"
  26 #include "syslevel.h"
  27 #include "thread.h"
  28 #include "selectors.h"
  29 #include "stackframe.h"
  30 #include "task.h"
  31 #include "debugtools.h"
  32 #include "callback.h"
  33 #include "loadorder.h"
  34 #include "elfdll.h"
  35 #include "server.h"
  36
  37 DEFAULT_DEBUG_CHANNEL(module);
  38 DECLARE_DEBUG_CHANNEL(win32);
  39
  40
  41 /*************************************************************************
  42  *              MODULE32_LookupHMODULE
  43  * looks for the referenced HMODULE in the current process
  44  */
  45 WINE_MODREF *MODULE32_LookupHMODULE( HMODULE hmod )
  46 {
  47     WINE_MODREF *wm;
  48
  49     if (!hmod)
  50         return PROCESS_Current()->exe_modref;
  51
  52     if (!HIWORD(hmod)) {
  53         ERR("tried to lookup 0x%04x in win32 module handler!\n",hmod);
  54         return NULL;
  55     }
  56     for ( wm = PROCESS_Current()->modref_list; wm; wm=wm->next )
  57         if (wm->module == hmod)
  58             return wm;
  59     return NULL;
  60 }
  61
  62 /*************************************************************************
  63  *              MODULE_InitDLL
  64  */
  65 static BOOL MODULE_InitDLL( WINE_MODREF *wm, DWORD type, LPVOID lpReserved )
  66 {
  67     BOOL retv = TRUE;
  68
  69     static LPCSTR typeName[] = { "PROCESS_DETACH", "PROCESS_ATTACH",
  70                                  "THREAD_ATTACH", "THREAD_DETACH" };
  71     assert( wm );
  72
  73
  74     /* Skip calls for modules loaded with special load flags */
  75
  76     if (    ( wm->flags & WINE_MODREF_DONT_RESOLVE_REFS )
  77          || ( wm->flags & WINE_MODREF_LOAD_AS_DATAFILE ) )
  78         return TRUE;
  79
  80
  81     TRACE("(%s,%s,%p) - CALL\n", wm->modname, typeName[type], lpReserved );
  82
  83     /* Call the initialization routine */
  84     switch ( wm->type )
  85     {
  86     case MODULE32_PE:
  87         retv = PE_InitDLL( wm, type, lpReserved );
  88         break;
  89
  90     case MODULE32_ELF:
  91         /* no need to do that, dlopen() already does */
  92         break;
  93
  94     default:
  95         ERR("wine_modref type %d not handled.\n", wm->type );
  96         retv = FALSE;
  97         break;
  98     }
  99
 100     /* The state of the module list may have changed due to the call
 101        to PE_InitDLL. We cannot assume that this module has not been
 102        deleted.  */
 103     TRACE("(%p,%s,%p) - RETURN %d\n", wm, typeName[type], lpReserved, retv );
 104
 105     return retv;
 106 }
 107
 108 /*************************************************************************
 109  *              MODULE_DllProcessAttach
 110  *
 111  * Send the process attach notification to all DLLs the given module
 112  * depends on (recursively). This is somewhat complicated due to the fact that
 113  *
 114  * - we have to respect the module dependencies, i.e. modules implicitly
 115  *   referenced by another module have to be initialized before the module
 116  *   itself can be initialized
 117  *
 118  * - the initialization routine of a DLL can itself call LoadLibrary,
 119  *   thereby introducing a whole new set of dependencies (even involving
 120  *   the 'old' modules) at any time during the whole process
 121  *
 122  * (Note that this routine can be recursively entered not only directly
 123  *  from itself, but also via LoadLibrary from one of the called initialization
 124  *  routines.)
 125  *
 126  * Furthermore, we need to rearrange the main WINE_MODREF list to allow
 127  * the process *detach* notifications to be sent in the correct order.
 128  * This must not only take into account module dependencies, but also
 129  * 'hidden' dependencies created by modules calling LoadLibrary in their
 130  * attach notification routine.
 131  *
 132  * The strategy is rather simple: we move a WINE_MODREF to the head of the
 133  * list after the attach notification has returned.  This implies that the
 134  * detach notifications are called in the reverse of the sequence the attach
 135  * notifications *returned*.
 136  *
 137  * NOTE: Assumes that the process critical section is held!
 138  *
 139  */
 140 BOOL MODULE_DllProcessAttach( WINE_MODREF *wm, LPVOID lpReserved )
 141 {
 142     BOOL retv = TRUE;
 143     int i;
 144     assert( wm );
 145
 146     /* prevent infinite recursion in case of cyclical dependencies */
 147     if (    ( wm->flags & WINE_MODREF_MARKER )
 148          || ( wm->flags & WINE_MODREF_PROCESS_ATTACHED ) )
 149         return retv;
 150
 151     TRACE("(%s,%p) - START\n", wm->modname, lpReserved );
 152
 153     /* Tag current MODREF to prevent recursive loop */
 154     wm->flags |= WINE_MODREF_MARKER;
 155
 156     /* Recursively attach all DLLs this one depends on */
 157     for ( i = 0; retv && i < wm->nDeps; i++ )
 158         if ( wm->deps[i] )
 159             retv = MODULE_DllProcessAttach( wm->deps[i], lpReserved );
 160
 161     /* Call DLL entry point */
 162     if ( retv )
 163     {
 164         retv = MODULE_InitDLL( wm, DLL_PROCESS_ATTACH, lpReserved );
 165         if ( retv )
 166             wm->flags |= WINE_MODREF_PROCESS_ATTACHED;
 167     }
 168
 169     /* Re-insert MODREF at head of list */
 170     if ( retv && wm->prev )
 171     {
 172         wm->prev->next = wm->next;
 173         if ( wm->next ) wm->next->prev = wm->prev;
 174
 175         wm->prev = NULL;
 176         wm->next = PROCESS_Current()->modref_list;
 177         PROCESS_Current()->modref_list = wm->next->prev = wm;
 178     }
 179
 180     /* Remove recursion flag */
 181     wm->flags &= ~WINE_MODREF_MARKER;
 182
 183     TRACE("(%s,%p) - END\n", wm->modname, lpReserved );
 184
 185     return retv;
 186 }
 187
 188 /*************************************************************************
 189  *              MODULE_DllProcessDetach
 190  *
 191  * Send DLL process detach notifications.  See the comment about calling
 192  * sequence at MODULE_DllProcessAttach.  Unless the bForceDetach flag
 193  * is set, only DLLs with zero refcount are notified.
 194  */
 195 void MODULE_DllProcessDetach( BOOL bForceDetach, LPVOID lpReserved )
 196 {
 197     WINE_MODREF *wm;
 198
 199     EnterCriticalSection( &PROCESS_Current()->crit_section );
 200
 201     do
 202     {
 203         for ( wm = PROCESS_Current()->modref_list; wm; wm = wm->next )
 204         {
 205             /* Check whether to detach this DLL */
 206             if ( !(wm->flags & WINE_MODREF_PROCESS_ATTACHED) )
 207                 continue;
 208             if ( wm->refCount > 0 && !bForceDetach )
 209                 continue;
 210
 211             /* Call detach notification */
 212             wm->flags &= ~WINE_MODREF_PROCESS_ATTACHED;
 213             MODULE_InitDLL( wm, DLL_PROCESS_DETACH, lpReserved );
 214
 215             /* Restart at head of WINE_MODREF list, as entries might have
 216                been added and/or removed while performing the call ... */
 217             break;
 218         }
 219     } while ( wm );
 220
 221     LeaveCriticalSection( &PROCESS_Current()->crit_section );
 222 }
 223
 224 /*************************************************************************
 225  *              MODULE_DllThreadAttach
 226  *
 227  * Send DLL thread attach notifications. These are sent in the
 228  * reverse sequence of process detach notification.
 229  *
 230  */
 231 void MODULE_DllThreadAttach( LPVOID lpReserved )
 232 {
 233     WINE_MODREF *wm;
 234
 235     EnterCriticalSection( &PROCESS_Current()->crit_section );
 236
 237     for ( wm = PROCESS_Current()->modref_list; wm; wm = wm->next )
 238         if ( !wm->next )
 239             break;
 240
 241     for ( ; wm; wm = wm->prev )
 242     {
 243         if ( !(wm->flags & WINE_MODREF_PROCESS_ATTACHED) )
 244             continue;
 245         if ( wm->flags & WINE_MODREF_NO_DLL_CALLS )
 246             continue;
 247
 248         MODULE_InitDLL( wm, DLL_THREAD_ATTACH, lpReserved );
 249     }
 250
 251     LeaveCriticalSection( &PROCESS_Current()->crit_section );
 252 }
 253
 254 /*************************************************************************
 255  *              MODULE_DllThreadDetach
 256  *
 257  * Send DLL thread detach notifications. These are sent in the
 258  * same sequence as process detach notification.
 259  *
 260  */
 261 void MODULE_DllThreadDetach( LPVOID lpReserved )
 262 {
 263     WINE_MODREF *wm;
 264
 265     EnterCriticalSection( &PROCESS_Current()->crit_section );
 266
 267     for ( wm = PROCESS_Current()->modref_list; wm; wm = wm->next )
 268     {
 269         if ( !(wm->flags & WINE_MODREF_PROCESS_ATTACHED) )
 270             continue;
 271         if ( wm->flags & WINE_MODREF_NO_DLL_CALLS )
 272             continue;
 273
 274         MODULE_InitDLL( wm, DLL_THREAD_DETACH, lpReserved );
 275     }
 276
 277     LeaveCriticalSection( &PROCESS_Current()->crit_section );
 278 }
 279
 280 /****************************************************************************
 281  *              DisableThreadLibraryCalls (KERNEL32.74)
 282  *
 283  * Don't call DllEntryPoint for DLL_THREAD_{ATTACH,DETACH} if set.
 284  */
 285 BOOL WINAPI DisableThreadLibraryCalls( HMODULE hModule )
 286 {
 287     WINE_MODREF *wm;
 288     BOOL retval = TRUE;
 289
 290     EnterCriticalSection( &PROCESS_Current()->crit_section );
 291
 292     wm = MODULE32_LookupHMODULE( hModule );
 293     if ( !wm )
 294         retval = FALSE;
 295     else
 296         wm->flags |= WINE_MODREF_NO_DLL_CALLS;
 297
 298     LeaveCriticalSection( &PROCESS_Current()->crit_section );
 299
 300     return retval;
 301 }
 302
 303
 304 /***********************************************************************
 305  *           MODULE_CreateDummyModule
 306  *
 307  * Create a dummy NE module for Win32 or Winelib.
 308  */
 309 HMODULE MODULE_CreateDummyModule( LPCSTR filename, HMODULE module32 )
 310 {
 311     HMODULE hModule;
 312     NE_MODULE *pModule;
 313     SEGTABLEENTRY *pSegment;
 314     char *pStr,*s;
 315     unsigned int len;
 316     const char* basename;
 317     OFSTRUCT *ofs;
 318     int of_size, size;
 319
 320     /* Extract base filename */
 321     basename = strrchr(filename, '\\');
 322     if (!basename) basename = filename;
 323     else basename++;
 324     len = strlen(basename);
 325     if ((s = strchr(basename, '.'))) len = s - basename;
 326
 327     /* Allocate module */
 328     of_size = sizeof(OFSTRUCT) - sizeof(ofs->szPathName)
 329                     + strlen(filename) + 1;
 330     size = sizeof(NE_MODULE) +
 331                  /* loaded file info */
 332                  of_size +
 333                  /* segment table: DS,CS */
 334                  2 * sizeof(SEGTABLEENTRY) +
 335                  /* name table */
 336                  len + 2 +
 337                  /* several empty tables */
 338                  8;
 339
 340     hModule = GlobalAlloc16( GMEM_MOVEABLE | GMEM_ZEROINIT, size );
 341     if (!hModule) return (HMODULE)11;  /* invalid exe */
 342
 343     FarSetOwner16( hModule, hModule );
 344     pModule = (NE_MODULE *)GlobalLock16( hModule );
 345
 346     /* Set all used entries */
 347     pModule->magic            = IMAGE_OS2_SIGNATURE;
 348     pModule->count            = 1;
 349     pModule->next             = 0;
 350     pModule->flags            = 0;
 351     pModule->dgroup           = 0;
 352     pModule->ss               = 1;
 353     pModule->cs               = 2;
 354     pModule->heap_size        = 0;
 355     pModule->stack_size       = 0;
 356     pModule->seg_count        = 2;
 357     pModule->modref_count     = 0;
 358     pModule->nrname_size      = 0;
 359     pModule->fileinfo         = sizeof(NE_MODULE);
 360     pModule->os_flags         = NE_OSFLAGS_WINDOWS;
 361     pModule->self             = hModule;
 362     pModule->module32         = module32;
 363
 364     /* Set version and flags */
 365     if (module32)
 366     {
 367         pModule->expected_version =
 368             ((PE_HEADER(module32)->OptionalHeader.MajorSubsystemVersion & 0xff) << 8 ) |
 369              (PE_HEADER(module32)->OptionalHeader.MinorSubsystemVersion & 0xff);
 370         pModule->flags |= NE_FFLAGS_WIN32;
 371         if (PE_HEADER(module32)->FileHeader.Characteristics & IMAGE_FILE_DLL)
 372             pModule->flags |= NE_FFLAGS_LIBMODULE | NE_FFLAGS_SINGLEDATA;
 373     }
 374
 375     /* Set loaded file information */
 376     ofs = (OFSTRUCT *)(pModule + 1);
 377     memset( ofs, 0, of_size );
 378     ofs->cBytes = of_size < 256 ? of_size : 255;   /* FIXME */
 379     strcpy( ofs->szPathName, filename );
 380
 381     pSegment = (SEGTABLEENTRY*)((char*)(pModule + 1) + of_size);
 382     pModule->seg_table = (int)pSegment - (int)pModule;
 383     /* Data segment */
 384     pSegment->size    = 0;
 385     pSegment->flags   = NE_SEGFLAGS_DATA;
 386     pSegment->minsize = 0x1000;
 387     pSegment++;
 388     /* Code segment */
 389     pSegment->flags   = 0;
 390     pSegment++;
 391
 392     /* Module name */
 393     pStr = (char *)pSegment;
 394     pModule->name_table = (int)pStr - (int)pModule;
 395     assert(len<256);
 396     *pStr = len;
 397     lstrcpynA( pStr+1, basename, len+1 );
 398     pStr += len+2;
 399
 400     /* All tables zero terminated */
 401     pModule->res_table = pModule->import_table = pModule->entry_table =
 402                 (int)pStr - (int)pModule;
 403
 404     NE_RegisterModule( pModule );
 405     return hModule;
 406 }
 407
 408
 409 /**********************************************************************
 410  *          MODULE_FindModule32
 411  *
 412  * Find a (loaded) win32 module depending on path
 413  *
 414  * RETURNS
 415  *      the module handle if found
 416  *      0 if not
 417  */
 418 WINE_MODREF *MODULE_FindModule(
 419         LPCSTR path     /* [in] pathname of module/library to be found */
 420 ) {
 421     WINE_MODREF *wm;
 422     char dllname[260], *p;
 423
 424     /* Append .DLL to name if no extension present */
 425     strcpy( dllname, path );
 426     if (!(p = strrchr( dllname, '.')) || strchr( p, '/' ) || strchr( p, '\\'))
 427             strcat( dllname, ".DLL" );
 428
 429     for ( wm = PROCESS_Current()->modref_list; wm; wm = wm->next )
 430     {
 431         if ( !strcasecmp( dllname, wm->modname ) )
 432             break;
 433         if ( !strcasecmp( dllname, wm->filename ) )
 434             break;
 435         if ( !strcasecmp( dllname, wm->short_modname ) )
 436             break;
 437         if ( !strcasecmp( dllname, wm->short_filename ) )
 438             break;
 439     }
 440
 441     return wm;
 442 }
 443
 444
 445 /* Check whether a file is an OS/2 or a very old Windows executable
 446  * by testing on import of KERNEL.
 447  *
 448  * FIXME: is reading the module imports the only way of discerning
 449  *        old Windows binaries from OS/2 ones ? At least it seems so...
 450  */
 451 static DWORD MODULE_Decide_OS2_OldWin(HANDLE hfile, IMAGE_DOS_HEADER *mz, IMAGE_OS2_HEADER *ne)
 452 {
 453     DWORD currpos = SetFilePointer( hfile, 0, NULL, SEEK_CUR);
 454     DWORD type = SCS_OS216_BINARY;
 455     LPWORD modtab = NULL;
 456     LPSTR nametab = NULL;
 457     DWORD len;
 458     int i;
 459
 460     /* read modref table */
 461     if ( (SetFilePointer( hfile, mz->e_lfanew + ne->ne_modtab, NULL, SEEK_SET ) == -1)
 462       || (!(modtab = HeapAlloc( GetProcessHeap(), 0, ne->ne_cmod*sizeof(WORD))))
 463       || (!(ReadFile(hfile, modtab, ne->ne_cmod*sizeof(WORD), &len, NULL)))
 464       || (len != ne->ne_cmod*sizeof(WORD)) )
 465         goto broken;
 466
 467     /* read imported names table */
 468     if ( (SetFilePointer( hfile, mz->e_lfanew + ne->ne_imptab, NULL, SEEK_SET ) == -1)
 469       || (!(nametab = HeapAlloc( GetProcessHeap(), 0, ne->ne_enttab - ne->ne_imptab)))
 470       || (!(ReadFile(hfile, nametab, ne->ne_enttab - ne->ne_imptab, &len, NULL)))
 471       || (len != ne->ne_enttab - ne->ne_imptab) )
 472         goto broken;
 473
 474     for (i=0; i < ne->ne_cmod; i++)
 475     {
 476         LPSTR module = &nametab[modtab[i]];
 477         TRACE("modref: %.*s\n", module[0], &module[1]);
 478         if (!(strncmp(&module[1], "KERNEL", module[0])))
 479         { /* very old Windows file */
 480             MESSAGE("This seems to be a very old (pre-3.0) Windows executable. Expect crashes, especially if this is a real-mode binary !\n");
 481             type = SCS_WOW_BINARY;
 482             goto good;
 483         }
 484     }
 485
 486 broken:
 487     ERR("Hmm, an error occurred. Is this binary file broken ?\n");
 488
 489 good:
 490     HeapFree( GetProcessHeap(), 0, modtab);
 491     HeapFree( GetProcessHeap(), 0, nametab);
 492     SetFilePointer( hfile, currpos, NULL, SEEK_SET); /* restore filepos */
 493     return type;
 494 }
 495
 496 /***********************************************************************
 497  *           MODULE_GetBinaryType
 498  *
 499  * The GetBinaryType function determines whether a file is executable
 500  * or not and if it is it returns what type of executable it is.
 501  * The type of executable is a property that determines in which
 502  * subsystem an executable file runs under.
 503  *
 504  * Binary types returned:
 505  * SCS_32BIT_BINARY: A Win32 based application
 506  * SCS_DOS_BINARY: An MS-Dos based application
 507  * SCS_WOW_BINARY: A Win16 based application
 508  * SCS_PIF_BINARY: A PIF file that executes an MS-Dos based app
 509  * SCS_POSIX_BINARY: A POSIX based application ( Not implemented )
 510  * SCS_OS216_BINARY: A 16bit OS/2 based application
 511  *
 512  * Returns TRUE if the file is an executable in which case
 513  * the value pointed by lpBinaryType is set.
 514  * Returns FALSE if the file is not an executable or if the function fails.
 515  *
 516  * To do so it opens the file and reads in the header information
 517  * if the extended header information is not present it will
 518  * assume that the file is a DOS executable.
 519  * If the extended header information is present it will
 520  * determine if the file is a 16 or 32 bit Windows executable
 521  * by check the flags in the header.
 522  *
 523  * Note that .COM and .PIF files are only recognized by their
 524  * file name extension; but Windows does it the same way ...
 525  */
 526 BOOL MODULE_GetBinaryType( HANDLE hfile, LPCSTR filename, LPDWORD lpBinaryType )
 527 {
 528     IMAGE_DOS_HEADER mz_header;
 529     char magic[4], *ptr;
 530     DWORD len;
 531
 532     /* Seek to the start of the file and read the DOS header information.
 533      */
 534     if (    SetFilePointer( hfile, 0, NULL, SEEK_SET ) != -1
 535          && ReadFile( hfile, &mz_header, sizeof(mz_header), &len, NULL )
 536          && len == sizeof(mz_header) )
 537     {
 538         /* Now that we have the header check the e_magic field
 539          * to see if this is a dos image.
 540          */
 541         if ( mz_header.e_magic == IMAGE_DOS_SIGNATURE )
 542         {
 543             BOOL lfanewValid = FALSE;
 544             /* We do have a DOS image so we will now try to seek into
 545              * the file by the amount indicated by the field
 546              * "Offset to extended header" and read in the
 547              * "magic" field information at that location.
 548              * This will tell us if there is more header information
 549              * to read or not.
 550              */
 551             /* But before we do we will make sure that header
 552              * structure encompasses the "Offset to extended header"
 553              * field.
 554              */
 555             if ( (mz_header.e_cparhdr<<4) >= sizeof(IMAGE_DOS_HEADER) )
 556                 if ( ( mz_header.e_crlc == 0 ) ||
 557                      ( mz_header.e_lfarlc >= sizeof(IMAGE_DOS_HEADER) ) )
 558                     if (    mz_header.e_lfanew >= sizeof(IMAGE_DOS_HEADER)
 559                          && SetFilePointer( hfile, mz_header.e_lfanew, NULL, SEEK_SET ) != -1
 560                          && ReadFile( hfile, magic, sizeof(magic), &len, NULL )
 561                          && len == sizeof(magic) )
 562                         lfanewValid = TRUE;
 563
 564             if ( !lfanewValid )
 565             {
 566                 /* If we cannot read this "extended header" we will
 567                  * assume that we have a simple DOS executable.
 568                  */
 569                 *lpBinaryType = SCS_DOS_BINARY;
 570                 return TRUE;
 571             }
 572             else
 573             {
 574                 /* Reading the magic field succeeded so
 575                  * we will try to determine what type it is.
 576                  */
 577                 if ( *(DWORD*)magic      == IMAGE_NT_SIGNATURE )
 578                 {
 579                     /* This is an NT signature.
 580                      */
 581                     *lpBinaryType = SCS_32BIT_BINARY;
 582                     return TRUE;
 583                 }
 584                 else if ( *(WORD*)magic == IMAGE_OS2_SIGNATURE )
 585                 {
 586                     /* The IMAGE_OS2_SIGNATURE indicates that the
 587                      * "extended header is a Windows executable (NE)
 588                      * header."  This can mean either a 16-bit OS/2
 589                      * or a 16-bit Windows or even a DOS program
 590                      * (running under a DOS extender).  To decide
 591                      * which, we'll have to read the NE header.
 592                      */
 593
 594                      IMAGE_OS2_HEADER ne;
 595                      if (    SetFilePointer( hfile, mz_header.e_lfanew, NULL, SEEK_SET ) != -1
 596                           && ReadFile( hfile, &ne, sizeof(ne), &len, NULL )
 597                           && len == sizeof(ne) )
 598                      {
 599                          switch ( ne.ne_exetyp )
 600                          {
 601                          case 2:  *lpBinaryType = SCS_WOW_BINARY;   return TRUE;
 602                          case 5:  *lpBinaryType = SCS_DOS_BINARY;   return TRUE;
 603                          default: *lpBinaryType =
 604                                   MODULE_Decide_OS2_OldWin(hfile, &mz_header, &ne);
 605                                   return TRUE;
 606                          }
 607                      }
 608                      /* Couldn't read header, so abort. */
 609                      return FALSE;
 610                 }
 611                 else
 612                 {
 613                     /* Unknown extended header, but this file is nonetheless
 614                        DOS-executable.
 615                      */
 616                     *lpBinaryType = SCS_DOS_BINARY;
 617                     return TRUE;
 618                 }
 619             }
 620         }
 621     }
 622
 623     /* If we get here, we don't even have a correct MZ header.
 624      * Try to check the file extension for known types ...
 625      */
 626     ptr = strrchr( filename, '.' );
 627     if ( ptr && !strchr( ptr, '\\' ) && !strchr( ptr, '/' ) )
 628     {
 629         if ( !lstrcmpiA( ptr, ".COM" ) )
 630         {
 631             *lpBinaryType = SCS_DOS_BINARY;
 632             return TRUE;
 633         }
 634
 635         if ( !lstrcmpiA( ptr, ".PIF" ) )
 636         {
 637             *lpBinaryType = SCS_PIF_BINARY;
 638             return TRUE;
 639         }
 640     }
 641
 642     return FALSE;
 643 }
 644
 645 /***********************************************************************
 646  *             GetBinaryTypeA                     [KERNEL32.280]
 647  */
 648 BOOL WINAPI GetBinaryTypeA( LPCSTR lpApplicationName, LPDWORD lpBinaryType )
 649 {
 650     BOOL ret = FALSE;
 651     HANDLE hfile;
 652
 653     TRACE_(win32)("%s\n", lpApplicationName );
 654
 655     /* Sanity check.
 656      */
 657     if ( lpApplicationName == NULL || lpBinaryType == NULL )
 658         return FALSE;
 659
 660     /* Open the file indicated by lpApplicationName for reading.
 661      */
 662     hfile = CreateFileA( lpApplicationName, GENERIC_READ, FILE_SHARE_READ,
 663                          NULL, OPEN_EXISTING, 0, -1 );
 664     if ( hfile == INVALID_HANDLE_VALUE )
 665         return FALSE;
 666
 667     /* Check binary type
 668      */
 669     ret = MODULE_GetBinaryType( hfile, lpApplicationName, lpBinaryType );
 670
 671     /* Close the file.
 672      */
 673     CloseHandle( hfile );
 674
 675     return ret;
 676 }
 677
 678 /***********************************************************************
 679  *             GetBinaryTypeW                      [KERNEL32.281]
 680  */
 681 BOOL WINAPI GetBinaryTypeW( LPCWSTR lpApplicationName, LPDWORD lpBinaryType )
 682 {
 683     BOOL ret = FALSE;
 684     LPSTR strNew = NULL;
 685
 686     TRACE_(win32)("%s\n", debugstr_w(lpApplicationName) );
 687
 688     /* Sanity check.
 689      */
 690     if ( lpApplicationName == NULL || lpBinaryType == NULL )
 691         return FALSE;
 692
 693     /* Convert the wide string to a ascii string.
 694      */
 695     strNew = HEAP_strdupWtoA( GetProcessHeap(), 0, lpApplicationName );
 696
 697     if ( strNew != NULL )
 698     {
 699         ret = GetBinaryTypeA( strNew, lpBinaryType );
 700
 701         /* Free the allocated string.
 702          */
 703         HeapFree( GetProcessHeap(), 0, strNew );
 704     }
 705
 706     return ret;
 707 }
 708
 709
 710 /***********************************************************************
 711  *           WinExec16   (KERNEL.166)
 712  */
 713 HINSTANCE16 WINAPI WinExec16( LPCSTR lpCmdLine, UINT16 nCmdShow )
 714 {
 715     LPCSTR p;
 716     LPSTR name, cmdline;
 717     int len;
 718     HINSTANCE16 ret;
 719     char buffer[MAX_PATH];
 720
 721     if ((p = strchr( lpCmdLine, ' ' )))
 722     {
 723         if (!(name = HeapAlloc( GetProcessHeap(), 0, p - lpCmdLine + 1 )))
 724             return ERROR_NOT_ENOUGH_MEMORY;
 725         memcpy( name, lpCmdLine, p - lpCmdLine );
 726         name[p - lpCmdLine] = 0;
 727         p++;
 728         len = strlen(p);
 729         cmdline = SEGPTR_ALLOC( len + 2 );
 730         cmdline[0] = (BYTE)len;
 731         strcpy( cmdline + 1, p );
 732     }
 733     else
 734     {
 735         name = (LPSTR)lpCmdLine;
 736         cmdline = SEGPTR_ALLOC(2);
 737         cmdline[0] = cmdline[1] = 0;
 738     }
 739
 740     if (SearchPathA( NULL, name, ".exe", sizeof(buffer), buffer, NULL ))
 741     {
 742         LOADPARAMS16 params;
 743         WORD *showCmd = SEGPTR_ALLOC( 2*sizeof(WORD) );
 744         showCmd[0] = 2;
 745         showCmd[1] = nCmdShow;
 746
 747         params.hEnvironment = 0;
 748         params.cmdLine = SEGPTR_GET(cmdline);
 749         params.showCmd = SEGPTR_GET(showCmd);
 750         params.reserved = 0;
 751
 752         ret = LoadModule16( buffer, &params );
 753
 754         SEGPTR_FREE( showCmd );
 755         SEGPTR_FREE( cmdline );
 756     }
 757     else ret = GetLastError();
 758
 759     if (name != lpCmdLine) HeapFree( GetProcessHeap(), 0, name );
 760
 761     if (ret == 21)  /* 32-bit module */
 762     {
 763         SYSLEVEL_ReleaseWin16Lock();
 764         ret = WinExec( lpCmdLine, nCmdShow );
 765         SYSLEVEL_RestoreWin16Lock();
 766     }
 767     return ret;
 768 }
 769
 770 /***********************************************************************
 771  *           WinExec   (KERNEL32.566)
 772  */
 773 HINSTANCE WINAPI WinExec( LPCSTR lpCmdLine, UINT nCmdShow )
 774 {
 775     PROCESS_INFORMATION info;
 776     STARTUPINFOA startup;
 777     HINSTANCE hInstance;
 778     char *cmdline;
 779
 780     memset( &startup, 0, sizeof(startup) );
 781     startup.cb = sizeof(startup);
 782     startup.dwFlags = STARTF_USESHOWWINDOW;
 783     startup.wShowWindow = nCmdShow;
 784
 785     /* cmdline needs to be writeable for CreateProcess */
 786     if (!(cmdline = HEAP_strdupA( GetProcessHeap(), 0, lpCmdLine ))) return 0;
 787
 788     if (CreateProcessA( NULL, cmdline, NULL, NULL, FALSE,
 789                         0, NULL, NULL, &startup, &info ))
 790     {
 791         /* Give 30 seconds to the app to come up */
 792         if (Callout.WaitForInputIdle ( info.hProcess, 30000 ) == 0xFFFFFFFF)
 793             WARN("WaitForInputIdle failed: Error %ld\n", GetLastError() );
 794         hInstance = 33;
 795         /* Close off the handles */
 796         CloseHandle( info.hThread );
 797         CloseHandle( info.hProcess );
 798     }
 799     else if ((hInstance = GetLastError()) >= 32)
 800     {
 801         FIXME("Strange error set by CreateProcess: %d\n", hInstance );
 802         hInstance = 11;
 803     }
 804     HeapFree( GetProcessHeap(), 0, cmdline );
 805     return hInstance;
 806 }
 807
 808 /**********************************************************************
 809  *          LoadModule    (KERNEL32.499)
 810  */
 811 HINSTANCE WINAPI LoadModule( LPCSTR name, LPVOID paramBlock )
 812 {
 813     LOADPARAMS *params = (LOADPARAMS *)paramBlock;
 814     PROCESS_INFORMATION info;
 815     STARTUPINFOA startup;
 816     HINSTANCE hInstance;
 817     LPSTR cmdline, p;
 818     char filename[MAX_PATH];
 819     BYTE len;
 820
 821     if (!name) return ERROR_FILE_NOT_FOUND;
 822
 823     if (!SearchPathA( NULL, name, ".exe", sizeof(filename), filename, NULL ) &&
 824         !SearchPathA( NULL, name, NULL, sizeof(filename), filename, NULL ))
 825         return GetLastError();
 826
 827     len = (BYTE)params->lpCmdLine[0];
 828     if (!(cmdline = HeapAlloc( GetProcessHeap(), 0, strlen(filename) + len + 2 )))
 829         return ERROR_NOT_ENOUGH_MEMORY;
 830
 831     strcpy( cmdline, filename );
 832     p = cmdline + strlen(cmdline);
 833     *p++ = ' ';
 834     memcpy( p, params->lpCmdLine + 1, len );
 835     p[len] = 0;
 836
 837     memset( &startup, 0, sizeof(startup) );
 838     startup.cb = sizeof(startup);
 839     if (params->lpCmdShow)
 840     {
 841         startup.dwFlags = STARTF_USESHOWWINDOW;
 842         startup.wShowWindow = params->lpCmdShow[1];
 843     }
 844
 845     if (CreateProcessA( filename, cmdline, NULL, NULL, FALSE, 0,
 846                         params->lpEnvAddress, NULL, &startup, &info ))
 847     {
 848         /* Give 30 seconds to the app to come up */
 849         if ( Callout.WaitForInputIdle ( info.hProcess, 30000 ) ==  0xFFFFFFFF )
 850             WARN("WaitForInputIdle failed: Error %ld\n", GetLastError() );
 851         hInstance = 33;
 852         /* Close off the handles */
 853         CloseHandle( info.hThread );
 854         CloseHandle( info.hProcess );
 855     }
 856     else if ((hInstance = GetLastError()) >= 32)
 857     {
 858         FIXME("Strange error set by CreateProcess: %d\n", hInstance );
 859         hInstance = 11;
 860     }
 861
 862     HeapFree( GetProcessHeap(), 0, cmdline );
 863     return hInstance;
 864 }
 865
 866
 867 /*************************************************************************
 868  *               get_file_name
 869  *
 870  * Helper for CreateProcess: retrieve the file name to load from the
 871  * app name and command line. Store the file name in buffer, and
 872  * return a possibly modified command line.
 873  */
 874 static LPSTR get_file_name( LPCSTR appname, LPSTR cmdline, LPSTR buffer, int buflen )
 875 {
 876     char *name, *pos, *ret = NULL;
 877     const char *p;
 878
 879     /* if we have an app name, everything is easy */
 880
 881     if (appname)
 882     {
 883         /* use the unmodified app name as file name */
 884         lstrcpynA( buffer, appname, buflen );
 885         if (!(ret = cmdline))
 886         {
 887             /* no command-line, create one */
 888             if ((ret = HeapAlloc( GetProcessHeap(), 0, strlen(appname) + 3 )))
 889                 sprintf( ret, "\"%s\"", appname );
 890         }
 891         return ret;
 892     }
 893
 894     if (!cmdline)
 895     {
 896         SetLastError( ERROR_INVALID_PARAMETER );
 897         return NULL;
 898     }
 899
 900     /* first check for a quoted file name */
 901
 902     if ((cmdline[0] == '"') && ((p = strchr( cmdline + 1, '"' ))))
 903     {
 904         int len = p - cmdline - 1;
 905         /* extract the quoted portion as file name */
 906         if (!(name = HeapAlloc( GetProcessHeap(), 0, len + 1 ))) return NULL;
 907         memcpy( name, cmdline + 1, len );
 908         name[len] = 0;
 909
 910         if (SearchPathA( NULL, name, ".exe", buflen, buffer, NULL ) ||
 911             SearchPathA( NULL, name, NULL, buflen, buffer, NULL ))
 912             ret = cmdline;  /* no change necessary */
 913         goto done;
 914     }
 915
 916     /* now try the command-line word by word */
 917
 918     if (!(name = HeapAlloc( GetProcessHeap(), 0, strlen(cmdline) + 1 ))) return NULL;
 919     pos = name;
 920     p = cmdline;
 921
 922     while (*p)
 923     {
 924         do *pos++ = *p++; while (*p && *p != ' ');
 925         *pos = 0;
 926         TRACE("trying '%s'\n", name );
 927         if (SearchPathA( NULL, name, ".exe", buflen, buffer, NULL ) ||
 928             SearchPathA( NULL, name, NULL, buflen, buffer, NULL ))
 929         {
 930             ret = cmdline;
 931             break;
 932         }
 933     }
 934
 935     if (!ret || !strchr( name, ' ' )) goto done;  /* no change necessary */
 936
 937     /* now build a new command-line with quotes */
 938
 939     if (!(ret = HeapAlloc( GetProcessHeap(), 0, strlen(cmdline) + 3 ))) goto done;
 940     sprintf( ret, "\"%s\"%s", name, p );
 941
 942  done:
 943     HeapFree( GetProcessHeap(), 0, name );
 944     return ret;
 945 }
 946
 947
 948 /**********************************************************************
 949  *       CreateProcessA          (KERNEL32.171)
 950  */
 951 BOOL WINAPI CreateProcessA( LPCSTR lpApplicationName, LPSTR lpCommandLine,
 952                             LPSECURITY_ATTRIBUTES lpProcessAttributes,
 953                             LPSECURITY_ATTRIBUTES lpThreadAttributes,
 954                             BOOL bInheritHandles, DWORD dwCreationFlags,
 955                             LPVOID lpEnvironment, LPCSTR lpCurrentDirectory,
 956                             LPSTARTUPINFOA lpStartupInfo,
 957                             LPPROCESS_INFORMATION lpProcessInfo )
 958 {
 959     BOOL retv = FALSE;
 960     HANDLE hFile;
 961     DWORD type;
 962     char name[MAX_PATH];
 963     LPSTR tidy_cmdline;
 964
 965     /* Process the AppName and/or CmdLine to get module name and path */
 966
 967     TRACE("app '%s' cmdline '%s'\n", lpApplicationName, lpCommandLine );
 968
 969     if (!(tidy_cmdline = get_file_name( lpApplicationName, lpCommandLine, name, sizeof(name) )))
 970         return FALSE;
 971
 972     /* Warn if unsupported features are used */
 973
 974     if (dwCreationFlags & DETACHED_PROCESS)
 975         FIXME("(%s,...): DETACHED_PROCESS ignored\n", name);
 976     if (dwCreationFlags & CREATE_NEW_CONSOLE)
 977         FIXME("(%s,...): CREATE_NEW_CONSOLE ignored\n", name);
 978     if (dwCreationFlags & NORMAL_PRIORITY_CLASS)
 979         FIXME("(%s,...): NORMAL_PRIORITY_CLASS ignored\n", name);
 980     if (dwCreationFlags & IDLE_PRIORITY_CLASS)
 981         FIXME("(%s,...): IDLE_PRIORITY_CLASS ignored\n", name);
 982     if (dwCreationFlags & HIGH_PRIORITY_CLASS)
 983         FIXME("(%s,...): HIGH_PRIORITY_CLASS ignored\n", name);
 984     if (dwCreationFlags & REALTIME_PRIORITY_CLASS)
 985         FIXME("(%s,...): REALTIME_PRIORITY_CLASS ignored\n", name);
 986     if (dwCreationFlags & CREATE_NEW_PROCESS_GROUP)
 987         FIXME("(%s,...): CREATE_NEW_PROCESS_GROUP ignored\n", name);
 988     if (dwCreationFlags & CREATE_UNICODE_ENVIRONMENT)
 989         FIXME("(%s,...): CREATE_UNICODE_ENVIRONMENT ignored\n", name);
 990     if (dwCreationFlags & CREATE_SEPARATE_WOW_VDM)
 991         FIXME("(%s,...): CREATE_SEPARATE_WOW_VDM ignored\n", name);
 992     if (dwCreationFlags & CREATE_SHARED_WOW_VDM)
 993         FIXME("(%s,...): CREATE_SHARED_WOW_VDM ignored\n", name);
 994     if (dwCreationFlags & CREATE_DEFAULT_ERROR_MODE)
 995         FIXME("(%s,...): CREATE_DEFAULT_ERROR_MODE ignored\n", name);
 996     if (dwCreationFlags & CREATE_NO_WINDOW)
 997         FIXME("(%s,...): CREATE_NO_WINDOW ignored\n", name);
 998     if (dwCreationFlags & PROFILE_USER)
 999         FIXME("(%s,...): PROFILE_USER ignored\n", name);
1000     if (dwCreationFlags & PROFILE_KERNEL)
1001         FIXME("(%s,...): PROFILE_KERNEL ignored\n", name);
1002     if (dwCreationFlags & PROFILE_SERVER)
1003         FIXME("(%s,...): PROFILE_SERVER ignored\n", name);
1004     if (lpStartupInfo->lpDesktop)
1005         FIXME("(%s,...): lpStartupInfo->lpDesktop %s ignored\n",
1006                       name, lpStartupInfo->lpDesktop);
1007     if (lpStartupInfo->lpTitle)
1008         FIXME("(%s,...): lpStartupInfo->lpTitle %s ignored\n",
1009                       name, lpStartupInfo->lpTitle);
1010     if (lpStartupInfo->dwFlags & STARTF_USECOUNTCHARS)
1011         FIXME("(%s,...): STARTF_USECOUNTCHARS (%ld,%ld) ignored\n",
1012                       name, lpStartupInfo->dwXCountChars, lpStartupInfo->dwYCountChars);
1013     if (lpStartupInfo->dwFlags & STARTF_USEFILLATTRIBUTE)
1014         FIXME("(%s,...): STARTF_USEFILLATTRIBUTE %lx ignored\n",
1015                       name, lpStartupInfo->dwFillAttribute);
1016     if (lpStartupInfo->dwFlags & STARTF_RUNFULLSCREEN)
1017         FIXME("(%s,...): STARTF_RUNFULLSCREEN ignored\n", name);
1018     if (lpStartupInfo->dwFlags & STARTF_FORCEONFEEDBACK)
1019         FIXME("(%s,...): STARTF_FORCEONFEEDBACK ignored\n", name);
1020     if (lpStartupInfo->dwFlags & STARTF_FORCEOFFFEEDBACK)
1021         FIXME("(%s,...): STARTF_FORCEOFFFEEDBACK ignored\n", name);
1022     if (lpStartupInfo->dwFlags & STARTF_USEHOTKEY)
1023         FIXME("(%s,...): STARTF_USEHOTKEY ignored\n", name);
1024
1025     /* Open file and determine executable type */
1026
1027     hFile = CreateFileA( name, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, 0, -1 );
1028     if (hFile == INVALID_HANDLE_VALUE) goto done;
1029
1030     if ( !MODULE_GetBinaryType( hFile, name, &type ) )
1031     {
1032         CloseHandle( hFile );
1033         retv = PROCESS_Create( -1, name, tidy_cmdline, lpEnvironment,
1034                                lpProcessAttributes, lpThreadAttributes,
1035                                bInheritHandles, dwCreationFlags,
1036                                lpStartupInfo, lpProcessInfo, lpCurrentDirectory );
1037         goto done;
1038     }
1039
1040     /* Create process */
1041
1042     switch ( type )
1043     {
1044     case SCS_32BIT_BINARY:
1045     case SCS_WOW_BINARY:
1046     case SCS_DOS_BINARY:
1047         retv = PROCESS_Create( hFile, name, tidy_cmdline, lpEnvironment,
1048                                lpProcessAttributes, lpThreadAttributes,
1049                                bInheritHandles, dwCreationFlags,
1050                                lpStartupInfo, lpProcessInfo, lpCurrentDirectory);
1051         break;
1052
1053     case SCS_PIF_BINARY:
1054     case SCS_POSIX_BINARY:
1055     case SCS_OS216_BINARY:
1056         FIXME("Unsupported executable type: %ld\n", type );
1057         /* fall through */
1058
1059     default:
1060         SetLastError( ERROR_BAD_FORMAT );
1061         break;
1062     }
1063     CloseHandle( hFile );
1064
1065  done:
1066     if (tidy_cmdline != lpCommandLine) HeapFree( GetProcessHeap(), 0, tidy_cmdline );
1067     return retv;
1068 }
1069
1070 /**********************************************************************
1071  *       CreateProcessW          (KERNEL32.172)
1072  * NOTES
1073  *  lpReserved is not converted
1074  */
1075 BOOL WINAPI CreateProcessW( LPCWSTR lpApplicationName, LPWSTR lpCommandLine,
1076                                 LPSECURITY_ATTRIBUTES lpProcessAttributes,
1077                                 LPSECURITY_ATTRIBUTES lpThreadAttributes,
1078                                 BOOL bInheritHandles, DWORD dwCreationFlags,
1079                                 LPVOID lpEnvironment, LPCWSTR lpCurrentDirectory,
1080                                 LPSTARTUPINFOW lpStartupInfo,
1081                                 LPPROCESS_INFORMATION lpProcessInfo )
1082 {   BOOL ret;
1083     STARTUPINFOA StartupInfoA;
1084
1085     LPSTR lpApplicationNameA = HEAP_strdupWtoA (GetProcessHeap(),0,lpApplicationName);
1086     LPSTR lpCommandLineA = HEAP_strdupWtoA (GetProcessHeap(),0,lpCommandLine);
1087     LPSTR lpCurrentDirectoryA = HEAP_strdupWtoA (GetProcessHeap(),0,lpCurrentDirectory);
1088
1089     memcpy (&StartupInfoA, lpStartupInfo, sizeof(STARTUPINFOA));
1090     StartupInfoA.lpDesktop = HEAP_strdupWtoA (GetProcessHeap(),0,lpStartupInfo->lpDesktop);
1091     StartupInfoA.lpTitle = HEAP_strdupWtoA (GetProcessHeap(),0,lpStartupInfo->lpTitle);
1092
1093     TRACE_(win32)("(%s,%s,...)\n", debugstr_w(lpApplicationName), debugstr_w(lpCommandLine));
1094
1095     if (lpStartupInfo->lpReserved)
1096       FIXME_(win32)("StartupInfo.lpReserved is used, please report (%s)\n", debugstr_w(lpStartupInfo->lpReserved));
1097
1098     ret = CreateProcessA(  lpApplicationNameA,  lpCommandLineA,
1099                              lpProcessAttributes, lpThreadAttributes,
1100                              bInheritHandles, dwCreationFlags,
1101                              lpEnvironment, lpCurrentDirectoryA,
1102                              &StartupInfoA, lpProcessInfo );
1103
1104     HeapFree( GetProcessHeap(), 0, lpCurrentDirectoryA );
1105     HeapFree( GetProcessHeap(), 0, lpCommandLineA );
1106     HeapFree( GetProcessHeap(), 0, StartupInfoA.lpDesktop );
1107     HeapFree( GetProcessHeap(), 0, StartupInfoA.lpTitle );
1108
1109     return ret;
1110 }
1111
1112 /***********************************************************************
1113  *              GetModuleHandleA         (KERNEL32.237)
1114  */
1115 HMODULE WINAPI GetModuleHandleA(LPCSTR module)
1116 {
1117     WINE_MODREF *wm;
1118
1119     if ( module == NULL )
1120         wm = PROCESS_Current()->exe_modref;
1121     else
1122         wm = MODULE_FindModule( module );
1123
1124     return wm? wm->module : 0;
1125 }
1126
1127 /***********************************************************************
1128  *              GetModuleHandleW
1129  */
1130 HMODULE WINAPI GetModuleHandleW(LPCWSTR module)
1131 {
1132     HMODULE hModule;
1133     LPSTR modulea = HEAP_strdupWtoA( GetProcessHeap(), 0, module );
1134     hModule = GetModuleHandleA( modulea );
1135     HeapFree( GetProcessHeap(), 0, modulea );
1136     return hModule;
1137 }
1138
1139
1140 /***********************************************************************
1141  *              GetModuleFileNameA      (KERNEL32.235)
1142  *
1143  * GetModuleFileNameA seems to *always* return the long path;
1144  * it's only GetModuleFileName16 that decides between short/long path
1145  * by checking if exe version >= 4.0.
1146  * (SDK docu doesn't mention this)
1147  */
1148 DWORD WINAPI GetModuleFileNameA(
1149         HMODULE hModule,        /* [in] module handle (32bit) */
1150         LPSTR lpFileName,       /* [out] filenamebuffer */
1151         DWORD size              /* [in] size of filenamebuffer */
1152 ) {
1153     WINE_MODREF *wm = MODULE32_LookupHMODULE( hModule );
1154
1155     if (!wm) /* can happen on start up or the like */
1156         return 0;
1157
1158     lstrcpynA( lpFileName, wm->filename, size );
1159
1160     TRACE("%s\n", lpFileName );
1161     return strlen(lpFileName);
1162 }
1163
1164
1165 /***********************************************************************
1166  *              GetModuleFileNameW      (KERNEL32.236)
1167  */
1168 DWORD WINAPI GetModuleFileNameW( HMODULE hModule, LPWSTR lpFileName,
1169                                    DWORD size )
1170 {
1171     LPSTR fnA = (char*)HeapAlloc( GetProcessHeap(), 0, size );
1172     DWORD res = GetModuleFileNameA( hModule, fnA, size );
1173     lstrcpynAtoW( lpFileName, fnA, size );
1174     HeapFree( GetProcessHeap(), 0, fnA );
1175     return res;
1176 }
1177
1178
1179 /***********************************************************************
1180  *           LoadLibraryExA   (KERNEL32)
1181  */
1182 HMODULE WINAPI LoadLibraryExA(LPCSTR libname, HANDLE hfile, DWORD flags)
1183 {
1184         WINE_MODREF *wm;
1185
1186         if(!libname)
1187         {
1188                 SetLastError(ERROR_INVALID_PARAMETER);
1189                 return 0;
1190         }
1191
1192         EnterCriticalSection(&PROCESS_Current()->crit_section);
1193
1194         wm = MODULE_LoadLibraryExA( libname, hfile, flags );
1195         if ( wm )
1196         {
1197                 if ( !MODULE_DllProcessAttach( wm, NULL ) )
1198                 {
1199                         WARN_(module)("Attach failed for module '%s', \n", libname);
1200                         MODULE_FreeLibrary(wm);
1201                         SetLastError(ERROR_DLL_INIT_FAILED);
1202                         wm = NULL;
1203                 }
1204         }
1205
1206         LeaveCriticalSection(&PROCESS_Current()->crit_section);
1207
1208         return wm ? wm->module : 0;
1209 }
1210
1211 /***********************************************************************
1212  *      MODULE_LoadLibraryExA   (internal)
1213  *
1214  * Load a PE style module according to the load order.
1215  *
1216  * The HFILE parameter is not used and marked reserved in the SDK. I can
1217  * only guess that it should force a file to be mapped, but I rather
1218  * ignore the parameter because it would be extremely difficult to
1219  * integrate this with different types of module represenations.
1220  *
1221  */
1222 WINE_MODREF *MODULE_LoadLibraryExA( LPCSTR libname, HFILE hfile, DWORD flags )
1223 {
1224         DWORD err = GetLastError();
1225         WINE_MODREF *pwm;
1226         int i;
1227         module_loadorder_t *plo;
1228
1229         EnterCriticalSection(&PROCESS_Current()->crit_section);
1230
1231         /* Check for already loaded module */
1232         if((pwm = MODULE_FindModule(libname)))
1233         {
1234                 if(!(pwm->flags & WINE_MODREF_MARKER))
1235                         pwm->refCount++;
1236                 TRACE("Already loaded module '%s' at 0x%08x, count=%d, \n", libname, pwm->module, pwm->refCount);
1237                 LeaveCriticalSection(&PROCESS_Current()->crit_section);
1238                 return pwm;
1239         }
1240
1241         plo = MODULE_GetLoadOrder(libname);
1242
1243         for(i = 0; i < MODULE_LOADORDER_NTYPES; i++)
1244         {
1245                 SetLastError( ERROR_FILE_NOT_FOUND );
1246                 switch(plo->loadorder[i])
1247                 {
1248                 case MODULE_LOADORDER_DLL:
1249                         TRACE("Trying native dll '%s'\n", libname);
1250                         pwm = PE_LoadLibraryExA(libname, flags);
1251                         break;
1252
1253                 case MODULE_LOADORDER_ELFDLL:
1254                         TRACE("Trying elfdll '%s'\n", libname);
1255                         if (!(pwm = BUILTIN32_LoadLibraryExA(libname, flags)))
1256                             pwm = ELFDLL_LoadLibraryExA(libname, flags);
1257                         break;
1258
1259                 case MODULE_LOADORDER_SO:
1260                         TRACE("Trying so-library '%s'\n", libname);
1261                         if (!(pwm = BUILTIN32_LoadLibraryExA(libname, flags)))
1262                             pwm = ELF_LoadLibraryExA(libname, flags);
1263                         break;
1264
1265                 case MODULE_LOADORDER_BI:
1266                         TRACE("Trying built-in '%s'\n", libname);
1267                         pwm = BUILTIN32_LoadLibraryExA(libname, flags);
1268                         break;
1269
1270                 default:
1271                         ERR("Got invalid loadorder type %d (%s index %d)\n", plo->loadorder[i], plo->modulename, i);
1272                 /* Fall through */
1273
1274                 case MODULE_LOADORDER_INVALID:  /* We ignore this as it is an empty entry */
1275                         pwm = NULL;
1276                         break;
1277                 }
1278
1279                 if(pwm)
1280                 {
1281                         /* Initialize DLL just loaded */
1282                         TRACE("Loaded module '%s' at 0x%08x, \n", libname, pwm->module);
1283
1284                         /* Set the refCount here so that an attach failure will */
1285                         /* decrement the dependencies through the MODULE_FreeLibrary call. */
1286                         pwm->refCount++;
1287
1288                         LeaveCriticalSection(&PROCESS_Current()->crit_section);
1289                         SetLastError( err );  /* restore last error */
1290                         return pwm;
1291                 }
1292
1293                 if(GetLastError() != ERROR_FILE_NOT_FOUND)
1294                         break;
1295         }
1296
1297         WARN("Failed to load module '%s'; error=0x%08lx, \n", libname, GetLastError());
1298         LeaveCriticalSection(&PROCESS_Current()->crit_section);
1299         return NULL;
1300 }
1301
1302 /***********************************************************************
1303  *           LoadLibraryA         (KERNEL32)
1304  */
1305 HMODULE WINAPI LoadLibraryA(LPCSTR libname) {
1306         return LoadLibraryExA(libname,0,0);
1307 }
1308
1309 /***********************************************************************
1310  *           LoadLibraryW         (KERNEL32)
1311  */
1312 HMODULE WINAPI LoadLibraryW(LPCWSTR libnameW)
1313 {
1314     return LoadLibraryExW(libnameW,0,0);
1315 }
1316
1317 /***********************************************************************
1318  *           LoadLibrary32_16   (KERNEL.452)
1319  */
1320 HMODULE WINAPI LoadLibrary32_16( LPCSTR libname )
1321 {
1322     HMODULE hModule;
1323
1324     SYSLEVEL_ReleaseWin16Lock();
1325     hModule = LoadLibraryA( libname );
1326     SYSLEVEL_RestoreWin16Lock();
1327
1328     return hModule;
1329 }
1330
1331 /***********************************************************************
1332  *           LoadLibraryExW       (KERNEL32)
1333  */
1334 HMODULE WINAPI LoadLibraryExW(LPCWSTR libnameW,HANDLE hfile,DWORD flags)
1335 {
1336     LPSTR libnameA = HEAP_strdupWtoA( GetProcessHeap(), 0, libnameW );
1337     HMODULE ret = LoadLibraryExA( libnameA , hfile, flags );
1338
1339     HeapFree( GetProcessHeap(), 0, libnameA );
1340     return ret;
1341 }
1342
1343 /***********************************************************************
1344  *           MODULE_FlushModrefs
1345  *
1346  * NOTE: Assumes that the process critical section is held!
1347  *
1348  * Remove all unused modrefs and call the internal unloading routines
1349  * for the library type.
1350  */
1351 static void MODULE_FlushModrefs(void)
1352 {
1353         WINE_MODREF *wm, *next;
1354
1355         for(wm = PROCESS_Current()->modref_list; wm; wm = next)
1356         {
1357                 next = wm->next;
1358
1359                 if(wm->refCount)
1360                         continue;
1361
1362                 /* Unlink this modref from the chain */
1363                 if(wm->next)
1364                         wm->next->prev = wm->prev;
1365                 if(wm->prev)
1366                         wm->prev->next = wm->next;
1367                 if(wm == PROCESS_Current()->modref_list)
1368                         PROCESS_Current()->modref_list = wm->next;
1369
1370                 /*
1371                  * The unloaders are also responsible for freeing the modref itself
1372                  * because the loaders were responsible for allocating it.
1373                  */
1374                 switch(wm->type)
1375                 {
1376                 case MODULE32_PE:       if ( !(wm->flags & WINE_MODREF_INTERNAL) )
1377                                                PE_UnloadLibrary(wm);
1378                                         else
1379                                                BUILTIN32_UnloadLibrary(wm);
1380                                         break;
1381                 case MODULE32_ELF:      ELF_UnloadLibrary(wm);          break;
1382                 case MODULE32_ELFDLL:   ELFDLL_UnloadLibrary(wm);       break;
1383
1384                 default:
1385                         ERR("Invalid or unhandled MODREF type %d encountered (wm=%p)\n", wm->type, wm);
1386                 }
1387         }
1388 }
1389
1390 /***********************************************************************
1391  *           FreeLibrary
1392  */
1393 BOOL WINAPI FreeLibrary(HINSTANCE hLibModule)
1394 {
1395     BOOL retv = FALSE;
1396     WINE_MODREF *wm;
1397
1398     EnterCriticalSection( &PROCESS_Current()->crit_section );
1399     PROCESS_Current()->free_lib_count++;
1400
1401     wm = MODULE32_LookupHMODULE( hLibModule );
1402     if ( !wm || !hLibModule )
1403         SetLastError( ERROR_INVALID_HANDLE );
1404     else
1405         retv = MODULE_FreeLibrary( wm );
1406
1407     PROCESS_Current()->free_lib_count--;
1408     LeaveCriticalSection( &PROCESS_Current()->crit_section );
1409
1410     return retv;
1411 }
1412
1413 /***********************************************************************
1414  *           MODULE_DecRefCount
1415  *
1416  * NOTE: Assumes that the process critical section is held!
1417  */
1418 static void MODULE_DecRefCount( WINE_MODREF *wm )
1419 {
1420     int i;
1421
1422     if ( wm->flags & WINE_MODREF_MARKER )
1423         return;
1424
1425     if ( wm->refCount <= 0 )
1426         return;
1427
1428     --wm->refCount;
1429     TRACE("(%s) refCount: %d\n", wm->modname, wm->refCount );
1430
1431     if ( wm->refCount == 0 )
1432     {
1433         wm->flags |= WINE_MODREF_MARKER;
1434
1435         for ( i = 0; i < wm->nDeps; i++ )
1436             if ( wm->deps[i] )
1437                 MODULE_DecRefCount( wm->deps[i] );
1438
1439         wm->flags &= ~WINE_MODREF_MARKER;
1440     }
1441 }
1442
1443 /***********************************************************************
1444  *           MODULE_FreeLibrary
1445  *
1446  * NOTE: Assumes that the process critical section is held!
1447  */
1448 BOOL MODULE_FreeLibrary( WINE_MODREF *wm )
1449 {
1450     TRACE("(%s) - START\n", wm->modname );
1451
1452     /* Recursively decrement reference counts */
1453     MODULE_DecRefCount( wm );
1454
1455     /* Call process detach notifications */
1456     if ( PROCESS_Current()->free_lib_count <= 1 )
1457     {
1458         struct unload_dll_request *req = get_req_buffer();
1459
1460         MODULE_DllProcessDetach( FALSE, NULL );
1461         req->base = (void *)wm->module;
1462         server_call_noerr( REQ_UNLOAD_DLL );
1463
1464         MODULE_FlushModrefs();
1465     }
1466
1467     TRACE("END\n");
1468
1469     return TRUE;
1470 }
1471
1472
1473 /***********************************************************************
1474  *           FreeLibraryAndExitThread
1475  */
1476 VOID WINAPI FreeLibraryAndExitThread(HINSTANCE hLibModule, DWORD dwExitCode)
1477 {
1478     FreeLibrary(hLibModule);
1479     ExitThread(dwExitCode);
1480 }
1481
1482 /***********************************************************************
1483  *           PrivateLoadLibrary       (KERNEL32)
1484  *
1485  * FIXME: rough guesswork, don't know what "Private" means
1486  */
1487 HINSTANCE WINAPI PrivateLoadLibrary(LPCSTR libname)
1488 {
1489         return (HINSTANCE)LoadLibrary16(libname);
1490 }
1491
1492
1493
1494 /***********************************************************************
1495  *           PrivateFreeLibrary       (KERNEL32)
1496  *
1497  * FIXME: rough guesswork, don't know what "Private" means
1498  */
1499 void WINAPI PrivateFreeLibrary(HINSTANCE handle)
1500 {
1501         FreeLibrary16((HINSTANCE16)handle);
1502 }
1503
1504
1505 /***********************************************************************
1506  *           WIN32_GetProcAddress16   (KERNEL32.36)
1507  * Get procaddress in 16bit module from win32... (kernel32 undoc. ordinal func)
1508  */
1509 FARPROC16 WINAPI WIN32_GetProcAddress16( HMODULE hModule, LPCSTR name )
1510 {
1511     WORD        ordinal;
1512     FARPROC16   ret;
1513
1514     if (!hModule) {
1515         WARN("hModule may not be 0!\n");
1516         return (FARPROC16)0;
1517     }
1518     if (HIWORD(hModule))
1519     {
1520         WARN("hModule is Win32 handle (%08x)\n", hModule );
1521         return (FARPROC16)0;
1522     }
1523     hModule = GetExePtr( hModule );
1524     if (HIWORD(name)) {
1525         ordinal = NE_GetOrdinal( hModule, name );
1526         TRACE("%04x '%s'\n", hModule, name );
1527     } else {
1528         ordinal = LOWORD(name);
1529         TRACE("%04x %04x\n", hModule, ordinal );
1530     }
1531     if (!ordinal) return (FARPROC16)0;
1532     ret = NE_GetEntryPoint( hModule, ordinal );
1533     TRACE("returning %08x\n",(UINT)ret);
1534     return ret;
1535 }
1536
1537 /***********************************************************************
1538  *           GetProcAddress16   (KERNEL.50)
1539  */
1540 FARPROC16 WINAPI GetProcAddress16( HMODULE16 hModule, SEGPTR name )
1541 {
1542     WORD ordinal;
1543     FARPROC16 ret;
1544
1545     if (!hModule) hModule = GetCurrentTask();
1546     hModule = GetExePtr( hModule );
1547
1548     if (HIWORD(name) != 0)
1549     {
1550         ordinal = NE_GetOrdinal( hModule, (LPSTR)PTR_SEG_TO_LIN(name) );
1551         TRACE("%04x '%s'\n", hModule, (LPSTR)PTR_SEG_TO_LIN(name) );
1552     }
1553     else
1554     {
1555         ordinal = LOWORD(name);
1556         TRACE("%04x %04x\n", hModule, ordinal );
1557     }
1558     if (!ordinal) return (FARPROC16)0;
1559
1560     ret = NE_GetEntryPoint( hModule, ordinal );
1561
1562     TRACE("returning %08x\n", (UINT)ret );
1563     return ret;
1564 }
1565
1566
1567 /***********************************************************************
1568  *           GetProcAddress             (KERNEL32.257)
1569  */
1570 FARPROC WINAPI GetProcAddress( HMODULE hModule, LPCSTR function )
1571 {
1572     return MODULE_GetProcAddress( hModule, function, TRUE );
1573 }
1574
1575 /***********************************************************************
1576  *           GetProcAddress32                   (KERNEL.453)
1577  */
1578 FARPROC WINAPI GetProcAddress32_16( HMODULE hModule, LPCSTR function )
1579 {
1580     return MODULE_GetProcAddress( hModule, function, FALSE );
1581 }
1582
1583 /***********************************************************************
1584  *           MODULE_GetProcAddress              (internal)
1585  */
1586 FARPROC MODULE_GetProcAddress(
1587         HMODULE hModule,        /* [in] current module handle */
1588         LPCSTR function,        /* [in] function to be looked up */
1589         BOOL snoop )
1590 {
1591     WINE_MODREF *wm = MODULE32_LookupHMODULE( hModule );
1592     FARPROC     retproc;
1593
1594     if (HIWORD(function))
1595         TRACE_(win32)("(%08lx,%s)\n",(DWORD)hModule,function);
1596     else
1597         TRACE_(win32)("(%08lx,%p)\n",(DWORD)hModule,function);
1598     if (!wm) {
1599         SetLastError(ERROR_INVALID_HANDLE);
1600         return (FARPROC)0;
1601     }
1602     switch (wm->type)
1603     {
1604     case MODULE32_PE:
1605         retproc = PE_FindExportedFunction( wm, function, snoop );
1606         if (!retproc) SetLastError(ERROR_PROC_NOT_FOUND);
1607         return retproc;
1608     case MODULE32_ELF:
1609         retproc = ELF_FindExportedFunction( wm, function);
1610         if (!retproc) SetLastError(ERROR_PROC_NOT_FOUND);
1611         return retproc;
1612     default:
1613         ERR("wine_modref type %d not handled.\n",wm->type);
1614         SetLastError(ERROR_INVALID_HANDLE);
1615         return (FARPROC)0;
1616     }
1617 }
1618
1619
1620 /***************************************************************************
1621  *              HasGPHandler                    (KERNEL.338)
1622  */
1623
1624 #include "pshpack1.h"
1625 typedef struct _GPHANDLERDEF
1626 {
1627     WORD selector;
1628     WORD rangeStart;
1629     WORD rangeEnd;
1630     WORD handler;
1631 } GPHANDLERDEF;
1632 #include "poppack.h"
1633
1634 SEGPTR WINAPI HasGPHandler16( SEGPTR address )
1635 {
1636     HMODULE16 hModule;
1637     int gpOrdinal;
1638     SEGPTR gpPtr;
1639     GPHANDLERDEF *gpHandler;
1640
1641     if (    (hModule = FarGetOwner16( SELECTOROF(address) )) != 0
1642          && (gpOrdinal = NE_GetOrdinal( hModule, "__GP" )) != 0
1643          && (gpPtr = (SEGPTR)NE_GetEntryPointEx( hModule, gpOrdinal, FALSE )) != 0
1644          && !IsBadReadPtr16( gpPtr, sizeof(GPHANDLERDEF) )
1645          && (gpHandler = PTR_SEG_TO_LIN( gpPtr )) != NULL )
1646     {
1647         while (gpHandler->selector)
1648         {
1649             if (    SELECTOROF(address) == gpHandler->selector
1650                  && OFFSETOF(address)   >= gpHandler->rangeStart
1651                  && OFFSETOF(address)   <  gpHandler->rangeEnd  )
1652                 return PTR_SEG_OFF_TO_SEGPTR( gpHandler->selector,
1653                                               gpHandler->handler );
1654             gpHandler++;
1655         }
1656     }
1657
1658     return 0;
1659 }
1660