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 "wingdi.h"
  16 #include "wine/winbase16.h"
  17 #include "wine/winuser16.h"
  18 #include "winerror.h"
  19 #include "file.h"
  20 #include "global.h"
  21 #include "heap.h"
  22 #include "module.h"
  23 #include "snoop.h"
  24 #include "neexe.h"
  25 #include "pe_image.h"
  26 #include "dosexe.h"
  27 #include "process.h"
  28 #include "syslevel.h"
  29 #include "thread.h"
  30 #include "selectors.h"
  31 #include "stackframe.h"
  32 #include "task.h"
  33 #include "debugtools.h"
  34 #include "callback.h"
  35 #include "loadorder.h"
  36 #include "elfdll.h"
  37 #include "server.h"
  38
  39 DEFAULT_DEBUG_CHANNEL(module);
  40 DECLARE_DEBUG_CHANNEL(win32);
  41
  42
  43 /*************************************************************************
  44  *              MODULE32_LookupHMODULE
  45  * looks for the referenced HMODULE in the current process
  46  */
  47 WINE_MODREF *MODULE32_LookupHMODULE( HMODULE hmod )
  48 {
  49     WINE_MODREF *wm;
  50
  51     if (!hmod)
  52         return PROCESS_Current()->exe_modref;
  53
  54     if (!HIWORD(hmod)) {
  55         ERR("tried to lookup 0x%04x in win32 module handler!\n",hmod);
  56         return NULL;
  57     }
  58     for ( wm = PROCESS_Current()->modref_list; wm; wm=wm->next )
  59         if (wm->module == hmod)
  60             return wm;
  61     return NULL;
  62 }
  63
  64 /*************************************************************************
  65  *              MODULE_InitDLL
  66  */
  67 static BOOL MODULE_InitDLL( WINE_MODREF *wm, DWORD type, LPVOID lpReserved )
  68 {
  69     BOOL retv = TRUE;
  70
  71     static LPCSTR typeName[] = { "PROCESS_DETACH", "PROCESS_ATTACH",
  72                                  "THREAD_ATTACH", "THREAD_DETACH" };
  73     assert( wm );
  74
  75
  76     /* Skip calls for modules loaded with special load flags */
  77
  78     if (    ( wm->flags & WINE_MODREF_DONT_RESOLVE_REFS )
  79          || ( wm->flags & WINE_MODREF_LOAD_AS_DATAFILE ) )
  80         return TRUE;
  81
  82
  83     TRACE("(%s,%s,%p) - CALL\n", wm->modname, typeName[type], lpReserved );
  84
  85     /* Call the initialization routine */
  86     switch ( wm->type )
  87     {
  88     case MODULE32_PE:
  89         retv = PE_InitDLL( wm, type, lpReserved );
  90         break;
  91
  92     case MODULE32_ELF:
  93         /* no need to do that, dlopen() already does */
  94         break;
  95
  96     default:
  97         ERR("wine_modref type %d not handled.\n", wm->type );
  98         retv = FALSE;
  99         break;
 100     }
 101
 102     /* The state of the module list may have changed due to the call
 103        to PE_InitDLL. We cannot assume that this module has not been
 104        deleted.  */
 105     TRACE("(%p,%s,%p) - RETURN %d\n", wm, typeName[type], lpReserved, retv );
 106
 107     return retv;
 108 }
 109
 110 /*************************************************************************
 111  *              MODULE_DllProcessAttach
 112  *
 113  * Send the process attach notification to all DLLs the given module
 114  * depends on (recursively). This is somewhat complicated due to the fact that
 115  *
 116  * - we have to respect the module dependencies, i.e. modules implicitly
 117  *   referenced by another module have to be initialized before the module
 118  *   itself can be initialized
 119  *
 120  * - the initialization routine of a DLL can itself call LoadLibrary,
 121  *   thereby introducing a whole new set of dependencies (even involving
 122  *   the 'old' modules) at any time during the whole process
 123  *
 124  * (Note that this routine can be recursively entered not only directly
 125  *  from itself, but also via LoadLibrary from one of the called initialization
 126  *  routines.)
 127  *
 128  * Furthermore, we need to rearrange the main WINE_MODREF list to allow
 129  * the process *detach* notifications to be sent in the correct order.
 130  * This must not only take into account module dependencies, but also
 131  * 'hidden' dependencies created by modules calling LoadLibrary in their
 132  * attach notification routine.
 133  *
 134  * The strategy is rather simple: we move a WINE_MODREF to the head of the
 135  * list after the attach notification has returned.  This implies that the
 136  * detach notifications are called in the reverse of the sequence the attach
 137  * notifications *returned*.
 138  *
 139  * NOTE: Assumes that the process critical section is held!
 140  *
 141  */
 142 BOOL MODULE_DllProcessAttach( WINE_MODREF *wm, LPVOID lpReserved )
 143 {
 144     BOOL retv = TRUE;
 145     int i;
 146     assert( wm );
 147
 148     /* prevent infinite recursion in case of cyclical dependencies */
 149     if (    ( wm->flags & WINE_MODREF_MARKER )
 150          || ( wm->flags & WINE_MODREF_PROCESS_ATTACHED ) )
 151         return retv;
 152
 153     TRACE("(%s,%p) - START\n", wm->modname, lpReserved );
 154
 155     /* Tag current MODREF to prevent recursive loop */
 156     wm->flags |= WINE_MODREF_MARKER;
 157
 158     /* Recursively attach all DLLs this one depends on */
 159     for ( i = 0; retv && i < wm->nDeps; i++ )
 160         if ( wm->deps[i] )
 161             retv = MODULE_DllProcessAttach( wm->deps[i], lpReserved );
 162
 163     /* Call DLL entry point */
 164     if ( retv )
 165     {
 166         retv = MODULE_InitDLL( wm, DLL_PROCESS_ATTACH, lpReserved );
 167         if ( retv )
 168             wm->flags |= WINE_MODREF_PROCESS_ATTACHED;
 169     }
 170
 171     /* Re-insert MODREF at head of list */
 172     if ( retv && wm->prev )
 173     {
 174         wm->prev->next = wm->next;
 175         if ( wm->next ) wm->next->prev = wm->prev;
 176
 177         wm->prev = NULL;
 178         wm->next = PROCESS_Current()->modref_list;
 179         PROCESS_Current()->modref_list = wm->next->prev = wm;
 180     }
 181
 182     /* Remove recursion flag */
 183     wm->flags &= ~WINE_MODREF_MARKER;
 184
 185     TRACE("(%s,%p) - END\n", wm->modname, lpReserved );
 186
 187     return retv;
 188 }
 189
 190 /*************************************************************************
 191  *              MODULE_DllProcessDetach
 192  *
 193  * Send DLL process detach notifications.  See the comment about calling
 194  * sequence at MODULE_DllProcessAttach.  Unless the bForceDetach flag
 195  * is set, only DLLs with zero refcount are notified.
 196  */
 197 void MODULE_DllProcessDetach( BOOL bForceDetach, LPVOID lpReserved )
 198 {
 199     WINE_MODREF *wm;
 200
 201     EnterCriticalSection( &PROCESS_Current()->crit_section );
 202
 203     do
 204     {
 205         for ( wm = PROCESS_Current()->modref_list; wm; wm = wm->next )
 206         {
 207             /* Check whether to detach this DLL */
 208             if ( !(wm->flags & WINE_MODREF_PROCESS_ATTACHED) )
 209                 continue;
 210             if ( wm->refCount > 0 && !bForceDetach )
 211                 continue;
 212
 213             /* Call detach notification */
 214             wm->flags &= ~WINE_MODREF_PROCESS_ATTACHED;
 215             MODULE_InitDLL( wm, DLL_PROCESS_DETACH, lpReserved );
 216
 217             /* Restart at head of WINE_MODREF list, as entries might have
 218                been added and/or removed while performing the call ... */
 219             break;
 220         }
 221     } while ( wm );
 222
 223     LeaveCriticalSection( &PROCESS_Current()->crit_section );
 224 }
 225
 226 /*************************************************************************
 227  *              MODULE_DllThreadAttach
 228  *
 229  * Send DLL thread attach notifications. These are sent in the
 230  * reverse sequence of process detach notification.
 231  *
 232  */
 233 void MODULE_DllThreadAttach( LPVOID lpReserved )
 234 {
 235     WINE_MODREF *wm;
 236
 237     EnterCriticalSection( &PROCESS_Current()->crit_section );
 238
 239     for ( wm = PROCESS_Current()->modref_list; wm; wm = wm->next )
 240         if ( !wm->next )
 241             break;
 242
 243     for ( ; wm; wm = wm->prev )
 244     {
 245         if ( !(wm->flags & WINE_MODREF_PROCESS_ATTACHED) )
 246             continue;
 247         if ( wm->flags & WINE_MODREF_NO_DLL_CALLS )
 248             continue;
 249
 250         MODULE_InitDLL( wm, DLL_THREAD_ATTACH, lpReserved );
 251     }
 252
 253     LeaveCriticalSection( &PROCESS_Current()->crit_section );
 254 }
 255
 256 /*************************************************************************
 257  *              MODULE_DllThreadDetach
 258  *
 259  * Send DLL thread detach notifications. These are sent in the
 260  * same sequence as process detach notification.
 261  *
 262  */
 263 void MODULE_DllThreadDetach( LPVOID lpReserved )
 264 {
 265     WINE_MODREF *wm;
 266
 267     EnterCriticalSection( &PROCESS_Current()->crit_section );
 268
 269     for ( wm = PROCESS_Current()->modref_list; wm; wm = wm->next )
 270     {
 271         if ( !(wm->flags & WINE_MODREF_PROCESS_ATTACHED) )
 272             continue;
 273         if ( wm->flags & WINE_MODREF_NO_DLL_CALLS )
 274             continue;
 275
 276         MODULE_InitDLL( wm, DLL_THREAD_DETACH, lpReserved );
 277     }
 278
 279     LeaveCriticalSection( &PROCESS_Current()->crit_section );
 280 }
 281
 282 /****************************************************************************
 283  *              DisableThreadLibraryCalls (KERNEL32.74)
 284  *
 285  * Don't call DllEntryPoint for DLL_THREAD_{ATTACH,DETACH} if set.
 286  */
 287 BOOL WINAPI DisableThreadLibraryCalls( HMODULE hModule )
 288 {
 289     WINE_MODREF *wm;
 290     BOOL retval = TRUE;
 291
 292     EnterCriticalSection( &PROCESS_Current()->crit_section );
 293
 294     wm = MODULE32_LookupHMODULE( hModule );
 295     if ( !wm )
 296         retval = FALSE;
 297     else
 298         wm->flags |= WINE_MODREF_NO_DLL_CALLS;
 299
 300     LeaveCriticalSection( &PROCESS_Current()->crit_section );
 301
 302     return retval;
 303 }
 304
 305
 306 /***********************************************************************
 307  *           MODULE_CreateDummyModule
 308  *
 309  * Create a dummy NE module for Win32 or Winelib.
 310  */
 311 HMODULE MODULE_CreateDummyModule( LPCSTR filename, HMODULE module32 )
 312 {
 313     HMODULE hModule;
 314     NE_MODULE *pModule;
 315     SEGTABLEENTRY *pSegment;
 316     char *pStr,*s;
 317     unsigned int len;
 318     const char* basename;
 319     OFSTRUCT *ofs;
 320     int of_size, size;
 321
 322     /* Extract base filename */
 323     basename = strrchr(filename, '\\');
 324     if (!basename) basename = filename;
 325     else basename++;
 326     len = strlen(basename);
 327     if ((s = strchr(basename, '.'))) len = s - basename;
 328
 329     /* Allocate module */
 330     of_size = sizeof(OFSTRUCT) - sizeof(ofs->szPathName)
 331                     + strlen(filename) + 1;
 332     size = sizeof(NE_MODULE) +
 333                  /* loaded file info */
 334                  of_size +
 335                  /* segment table: DS,CS */
 336                  2 * sizeof(SEGTABLEENTRY) +
 337                  /* name table */
 338                  len + 2 +
 339                  /* several empty tables */
 340                  8;
 341
 342     hModule = GlobalAlloc16( GMEM_MOVEABLE | GMEM_ZEROINIT, size );
 343     if (!hModule) return (HMODULE)11;  /* invalid exe */
 344
 345     FarSetOwner16( hModule, hModule );
 346     pModule = (NE_MODULE *)GlobalLock16( hModule );
 347
 348     /* Set all used entries */
 349     pModule->magic            = IMAGE_OS2_SIGNATURE;
 350     pModule->count            = 1;
 351     pModule->next             = 0;
 352     pModule->flags            = 0;
 353     pModule->dgroup           = 0;
 354     pModule->ss               = 1;
 355     pModule->cs               = 2;
 356     pModule->heap_size        = 0;
 357     pModule->stack_size       = 0;
 358     pModule->seg_count        = 2;
 359     pModule->modref_count     = 0;
 360     pModule->nrname_size      = 0;
 361     pModule->fileinfo         = sizeof(NE_MODULE);
 362     pModule->os_flags         = NE_OSFLAGS_WINDOWS;
 363     pModule->self             = hModule;
 364     pModule->module32         = module32;
 365
 366     /* Set version and flags */
 367     if (module32)
 368     {
 369         pModule->expected_version =
 370             ((PE_HEADER(module32)->OptionalHeader.MajorSubsystemVersion & 0xff) << 8 ) |
 371              (PE_HEADER(module32)->OptionalHeader.MinorSubsystemVersion & 0xff);
 372         pModule->flags |= NE_FFLAGS_WIN32;
 373         if (PE_HEADER(module32)->FileHeader.Characteristics & IMAGE_FILE_DLL)
 374             pModule->flags |= NE_FFLAGS_LIBMODULE | NE_FFLAGS_SINGLEDATA;
 375     }
 376
 377     /* Set loaded file information */
 378     ofs = (OFSTRUCT *)(pModule + 1);
 379     memset( ofs, 0, of_size );
 380     ofs->cBytes = of_size < 256 ? of_size : 255;   /* FIXME */
 381     strcpy( ofs->szPathName, filename );
 382
 383     pSegment = (SEGTABLEENTRY*)((char*)(pModule + 1) + of_size);
 384     pModule->seg_table = (int)pSegment - (int)pModule;
 385     /* Data segment */
 386     pSegment->size    = 0;
 387     pSegment->flags   = NE_SEGFLAGS_DATA;
 388     pSegment->minsize = 0x1000;
 389     pSegment++;
 390     /* Code segment */
 391     pSegment->flags   = 0;
 392     pSegment++;
 393
 394     /* Module name */
 395     pStr = (char *)pSegment;
 396     pModule->name_table = (int)pStr - (int)pModule;
 397     assert(len<256);
 398     *pStr = len;
 399     lstrcpynA( pStr+1, basename, len+1 );
 400     pStr += len+2;
 401
 402     /* All tables zero terminated */
 403     pModule->res_table = pModule->import_table = pModule->entry_table =
 404                 (int)pStr - (int)pModule;
 405
 406     NE_RegisterModule( pModule );
 407     return hModule;
 408 }
 409
 410
 411 /**********************************************************************
 412  *          MODULE_FindModule32
 413  *
 414  * Find a (loaded) win32 module depending on path
 415  *
 416  * RETURNS
 417  *      the module handle if found
 418  *      0 if not
 419  */
 420 WINE_MODREF *MODULE_FindModule(
 421         LPCSTR path     /* [in] pathname of module/library to be found */
 422 ) {
 423     WINE_MODREF *wm;
 424     char dllname[260], *p;
 425
 426     /* Append .DLL to name if no extension present */
 427     strcpy( dllname, path );
 428     if (!(p = strrchr( dllname, '.')) || strchr( p, '/' ) || strchr( p, '\\'))
 429             strcat( dllname, ".DLL" );
 430
 431     for ( wm = PROCESS_Current()->modref_list; wm; wm = wm->next )
 432     {
 433         if ( !strcasecmp( dllname, wm->modname ) )
 434             break;
 435         if ( !strcasecmp( dllname, wm->filename ) )
 436             break;
 437         if ( !strcasecmp( dllname, wm->short_modname ) )
 438             break;
 439         if ( !strcasecmp( dllname, wm->short_filename ) )
 440             break;
 441     }
 442
 443     return wm;
 444 }
 445
 446 /***********************************************************************
 447  *           MODULE_GetBinaryType
 448  *
 449  * The GetBinaryType function determines whether a file is executable
 450  * or not and if it is it returns what type of executable it is.
 451  * The type of executable is a property that determines in which
 452  * subsystem an executable file runs under.
 453  *
 454  * Binary types returned:
 455  * SCS_32BIT_BINARY: A Win32 based application
 456  * SCS_DOS_BINARY: An MS-Dos based application
 457  * SCS_WOW_BINARY: A Win16 based application
 458  * SCS_PIF_BINARY: A PIF file that executes an MS-Dos based app
 459  * SCS_POSIX_BINARY: A POSIX based application ( Not implemented )
 460  * SCS_OS216_BINARY: A 16bit OS/2 based application
 461  *
 462  * Returns TRUE if the file is an executable in which case
 463  * the value pointed by lpBinaryType is set.
 464  * Returns FALSE if the file is not an executable or if the function fails.
 465  *
 466  * To do so it opens the file and reads in the header information
 467  * if the extended header information is not present it will
 468  * assume that the file is a DOS executable.
 469  * If the extended header information is present it will
 470  * determine if the file is a 16 or 32 bit Windows executable
 471  * by check the flags in the header.
 472  *
 473  * Note that .COM and .PIF files are only recognized by their
 474  * file name extension; but Windows does it the same way ...
 475  */
 476 BOOL MODULE_GetBinaryType( HANDLE hfile, LPCSTR filename, LPDWORD lpBinaryType )
 477 {
 478     IMAGE_DOS_HEADER mz_header;
 479     char magic[4], *ptr;
 480     DWORD len;
 481
 482     /* Seek to the start of the file and read the DOS header information.
 483      */
 484     if (    SetFilePointer( hfile, 0, NULL, SEEK_SET ) != -1
 485          && ReadFile( hfile, &mz_header, sizeof(mz_header), &len, NULL )
 486          && len == sizeof(mz_header) )
 487     {
 488         /* Now that we have the header check the e_magic field
 489          * to see if this is a dos image.
 490          */
 491         if ( mz_header.e_magic == IMAGE_DOS_SIGNATURE )
 492         {
 493             BOOL lfanewValid = FALSE;
 494             /* We do have a DOS image so we will now try to seek into
 495              * the file by the amount indicated by the field
 496              * "Offset to extended header" and read in the
 497              * "magic" field information at that location.
 498              * This will tell us if there is more header information
 499              * to read or not.
 500              */
 501             /* But before we do we will make sure that header
 502              * structure encompasses the "Offset to extended header"
 503              * field.
 504              */
 505             if ( (mz_header.e_cparhdr<<4) >= sizeof(IMAGE_DOS_HEADER) )
 506                 if ( ( mz_header.e_crlc == 0 ) ||
 507                      ( mz_header.e_lfarlc >= sizeof(IMAGE_DOS_HEADER) ) )
 508                     if (    mz_header.e_lfanew >= sizeof(IMAGE_DOS_HEADER)
 509                          && SetFilePointer( hfile, mz_header.e_lfanew, NULL, SEEK_SET ) != -1
 510                          && ReadFile( hfile, magic, sizeof(magic), &len, NULL )
 511                          && len == sizeof(magic) )
 512                         lfanewValid = TRUE;
 513
 514             if ( !lfanewValid )
 515             {
 516                 /* If we cannot read this "extended header" we will
 517                  * assume that we have a simple DOS executable.
 518                  */
 519                 *lpBinaryType = SCS_DOS_BINARY;
 520                 return TRUE;
 521             }
 522             else
 523             {
 524                 /* Reading the magic field succeeded so
 525                  * we will try to determine what type it is.
 526                  */
 527                 if ( *(DWORD*)magic      == IMAGE_NT_SIGNATURE )
 528                 {
 529                     /* This is an NT signature.
 530                      */
 531                     *lpBinaryType = SCS_32BIT_BINARY;
 532                     return TRUE;
 533                 }
 534                 else if ( *(WORD*)magic == IMAGE_OS2_SIGNATURE )
 535                 {
 536                     /* The IMAGE_OS2_SIGNATURE indicates that the
 537                      * "extended header is a Windows executable (NE)
 538                      * header."  This can mean either a 16-bit OS/2
 539                      * or a 16-bit Windows or even a DOS program
 540                      * (running under a DOS extender).  To decide
 541                      * which, we'll have to read the NE header.
 542                      */
 543
 544                      IMAGE_OS2_HEADER ne;
 545                      if (    SetFilePointer( hfile, mz_header.e_lfanew, NULL, SEEK_SET ) != -1
 546                           && ReadFile( hfile, &ne, sizeof(ne), &len, NULL )
 547                           && len == sizeof(ne) )
 548                      {
 549                          switch ( ne.ne_exetyp )
 550                          {
 551                          case 2:  *lpBinaryType = SCS_WOW_BINARY;   return TRUE;
 552                          case 5:  *lpBinaryType = SCS_DOS_BINARY;   return TRUE;
 553                          default: *lpBinaryType = SCS_OS216_BINARY; return TRUE;
 554                          }
 555                      }
 556                      /* Couldn't read header, so abort. */
 557                      return FALSE;
 558                 }
 559                 else
 560                 {
 561                     /* Unknown extended header, but this file is nonetheless
 562                        DOS-executable.
 563                      */
 564                     *lpBinaryType = SCS_DOS_BINARY;
 565                     return TRUE;
 566                 }
 567             }
 568         }
 569     }
 570
 571     /* If we get here, we don't even have a correct MZ header.
 572      * Try to check the file extension for known types ...
 573      */
 574     ptr = strrchr( filename, '.' );
 575     if ( ptr && !strchr( ptr, '\\' ) && !strchr( ptr, '/' ) )
 576     {
 577         if ( !lstrcmpiA( ptr, ".COM" ) )
 578         {
 579             *lpBinaryType = SCS_DOS_BINARY;
 580             return TRUE;
 581         }
 582
 583         if ( !lstrcmpiA( ptr, ".PIF" ) )
 584         {
 585             *lpBinaryType = SCS_PIF_BINARY;
 586             return TRUE;
 587         }
 588     }
 589
 590     return FALSE;
 591 }
 592
 593 /***********************************************************************
 594  *             GetBinaryTypeA                     [KERNEL32.280]
 595  */
 596 BOOL WINAPI GetBinaryTypeA( LPCSTR lpApplicationName, LPDWORD lpBinaryType )
 597 {
 598     BOOL ret = FALSE;
 599     HANDLE hfile;
 600
 601     TRACE_(win32)("%s\n", lpApplicationName );
 602
 603     /* Sanity check.
 604      */
 605     if ( lpApplicationName == NULL || lpBinaryType == NULL )
 606         return FALSE;
 607
 608     /* Open the file indicated by lpApplicationName for reading.
 609      */
 610     hfile = CreateFileA( lpApplicationName, GENERIC_READ, FILE_SHARE_READ,
 611                          NULL, OPEN_EXISTING, 0, -1 );
 612     if ( hfile == INVALID_HANDLE_VALUE )
 613         return FALSE;
 614
 615     /* Check binary type
 616      */
 617     ret = MODULE_GetBinaryType( hfile, lpApplicationName, lpBinaryType );
 618
 619     /* Close the file.
 620      */
 621     CloseHandle( hfile );
 622
 623     return ret;
 624 }
 625
 626 /***********************************************************************
 627  *             GetBinaryTypeW                      [KERNEL32.281]
 628  */
 629 BOOL WINAPI GetBinaryTypeW( LPCWSTR lpApplicationName, LPDWORD lpBinaryType )
 630 {
 631     BOOL ret = FALSE;
 632     LPSTR strNew = NULL;
 633
 634     TRACE_(win32)("%s\n", debugstr_w(lpApplicationName) );
 635
 636     /* Sanity check.
 637      */
 638     if ( lpApplicationName == NULL || lpBinaryType == NULL )
 639         return FALSE;
 640
 641     /* Convert the wide string to a ascii string.
 642      */
 643     strNew = HEAP_strdupWtoA( GetProcessHeap(), 0, lpApplicationName );
 644
 645     if ( strNew != NULL )
 646     {
 647         ret = GetBinaryTypeA( strNew, lpBinaryType );
 648
 649         /* Free the allocated string.
 650          */
 651         HeapFree( GetProcessHeap(), 0, strNew );
 652     }
 653
 654     return ret;
 655 }
 656
 657
 658 /***********************************************************************
 659  *           WinExec16   (KERNEL.166)
 660  */
 661 HINSTANCE16 WINAPI WinExec16( LPCSTR lpCmdLine, UINT16 nCmdShow )
 662 {
 663     LPCSTR p;
 664     LPSTR name, cmdline;
 665     int len;
 666     HINSTANCE16 ret;
 667     char buffer[MAX_PATH];
 668
 669     if ((p = strchr( lpCmdLine, ' ' )))
 670     {
 671         if (!(name = HeapAlloc( GetProcessHeap(), 0, p - lpCmdLine + 1 )))
 672             return ERROR_NOT_ENOUGH_MEMORY;
 673         memcpy( name, lpCmdLine, p - lpCmdLine );
 674         name[p - lpCmdLine] = 0;
 675         p++;
 676         len = strlen(p);
 677         cmdline = SEGPTR_ALLOC( len + 2 );
 678         cmdline[0] = (BYTE)len;
 679         strcpy( cmdline + 1, p );
 680     }
 681     else
 682     {
 683         name = (LPSTR)lpCmdLine;
 684         cmdline = SEGPTR_ALLOC(2);
 685         cmdline[0] = cmdline[1] = 0;
 686     }
 687
 688     if (SearchPathA( NULL, name, ".exe", sizeof(buffer), buffer, NULL ))
 689     {
 690         LOADPARAMS16 params;
 691         WORD *showCmd = SEGPTR_ALLOC( 2*sizeof(WORD) );
 692         showCmd[0] = 2;
 693         showCmd[1] = nCmdShow;
 694
 695         params.hEnvironment = 0;
 696         params.cmdLine = SEGPTR_GET(cmdline);
 697         params.showCmd = SEGPTR_GET(showCmd);
 698         params.reserved = 0;
 699
 700         ret = LoadModule16( buffer, &params );
 701
 702         SEGPTR_FREE( showCmd );
 703         SEGPTR_FREE( cmdline );
 704     }
 705     else ret = GetLastError();
 706
 707     if (name != lpCmdLine) HeapFree( GetProcessHeap(), 0, name );
 708
 709     if (ret == 21)  /* 32-bit module */
 710     {
 711         SYSLEVEL_ReleaseWin16Lock();
 712         ret = WinExec( lpCmdLine, nCmdShow );
 713         SYSLEVEL_RestoreWin16Lock();
 714     }
 715     return ret;
 716 }
 717
 718 /***********************************************************************
 719  *           WinExec   (KERNEL32.566)
 720  */
 721 HINSTANCE WINAPI WinExec( LPCSTR lpCmdLine, UINT nCmdShow )
 722 {
 723     PROCESS_INFORMATION info;
 724     STARTUPINFOA startup;
 725     HINSTANCE hInstance;
 726     char *cmdline;
 727
 728     memset( &startup, 0, sizeof(startup) );
 729     startup.cb = sizeof(startup);
 730     startup.dwFlags = STARTF_USESHOWWINDOW;
 731     startup.wShowWindow = nCmdShow;
 732
 733     /* cmdline needs to be writeable for CreateProcess */
 734     if (!(cmdline = HEAP_strdupA( GetProcessHeap(), 0, lpCmdLine ))) return 0;
 735
 736     if (CreateProcessA( NULL, cmdline, NULL, NULL, FALSE,
 737                         0, NULL, NULL, &startup, &info ))
 738     {
 739         /* Give 30 seconds to the app to come up */
 740         if (Callout.WaitForInputIdle ( info.hProcess, 30000 ) == 0xFFFFFFFF)
 741             WARN("WaitForInputIdle failed: Error %ld\n", GetLastError() );
 742         hInstance = 33;
 743         /* Close off the handles */
 744         CloseHandle( info.hThread );
 745         CloseHandle( info.hProcess );
 746     }
 747     else if ((hInstance = GetLastError()) >= 32)
 748     {
 749         FIXME("Strange error set by CreateProcess: %d\n", hInstance );
 750         hInstance = 11;
 751     }
 752     HeapFree( GetProcessHeap(), 0, cmdline );
 753     return hInstance;
 754 }
 755
 756 /**********************************************************************
 757  *          LoadModule    (KERNEL32.499)
 758  */
 759 HINSTANCE WINAPI LoadModule( LPCSTR name, LPVOID paramBlock )
 760 {
 761     LOADPARAMS *params = (LOADPARAMS *)paramBlock;
 762     PROCESS_INFORMATION info;
 763     STARTUPINFOA startup;
 764     HINSTANCE hInstance;
 765     LPSTR cmdline, p;
 766     char filename[MAX_PATH];
 767     BYTE len;
 768
 769     if (!name) return ERROR_FILE_NOT_FOUND;
 770
 771     if (!SearchPathA( NULL, name, ".exe", sizeof(filename), filename, NULL ) &&
 772         !SearchPathA( NULL, name, NULL, sizeof(filename), filename, NULL ))
 773         return GetLastError();
 774
 775     len = (BYTE)params->lpCmdLine[0];
 776     if (!(cmdline = HeapAlloc( GetProcessHeap(), 0, strlen(filename) + len + 2 )))
 777         return ERROR_NOT_ENOUGH_MEMORY;
 778
 779     strcpy( cmdline, filename );
 780     p = cmdline + strlen(cmdline);
 781     *p++ = ' ';
 782     memcpy( p, params->lpCmdLine + 1, len );
 783     p[len] = 0;
 784
 785     memset( &startup, 0, sizeof(startup) );
 786     startup.cb = sizeof(startup);
 787     if (params->lpCmdShow)
 788     {
 789         startup.dwFlags = STARTF_USESHOWWINDOW;
 790         startup.wShowWindow = params->lpCmdShow[1];
 791     }
 792
 793     if (CreateProcessA( filename, cmdline, NULL, NULL, FALSE, 0,
 794                         params->lpEnvAddress, NULL, &startup, &info ))
 795     {
 796         /* Give 30 seconds to the app to come up */
 797         if ( Callout.WaitForInputIdle ( info.hProcess, 30000 ) ==  0xFFFFFFFF )
 798             WARN("WaitForInputIdle failed: Error %ld\n", GetLastError() );
 799         hInstance = 33;
 800         /* Close off the handles */
 801         CloseHandle( info.hThread );
 802         CloseHandle( info.hProcess );
 803     }
 804     else if ((hInstance = GetLastError()) >= 32)
 805     {
 806         FIXME("Strange error set by CreateProcess: %d\n", hInstance );
 807         hInstance = 11;
 808     }
 809
 810     HeapFree( GetProcessHeap(), 0, cmdline );
 811     return hInstance;
 812 }
 813
 814
 815 /*************************************************************************
 816  *               get_file_name
 817  *
 818  * Helper for CreateProcess: retrieve the file name to load from the
 819  * app name and command line. Store the file name in buffer, and
 820  * return a possibly modified command line.
 821  */
 822 static LPSTR get_file_name( LPCSTR appname, LPSTR cmdline, LPSTR buffer, int buflen )
 823 {
 824     char *name, *pos, *ret = NULL;
 825     const char *p;
 826
 827     /* if we have an app name, everything is easy */
 828
 829     if (appname)
 830     {
 831         /* use the unmodified app name as file name */
 832         lstrcpynA( buffer, appname, buflen );
 833         if (!(ret = cmdline))
 834         {
 835             /* no command-line, create one */
 836             if ((ret = HeapAlloc( GetProcessHeap(), 0, strlen(appname) + 3 )))
 837                 sprintf( ret, "\"%s\"", appname );
 838         }
 839         return ret;
 840     }
 841
 842     if (!cmdline)
 843     {
 844         SetLastError( ERROR_INVALID_PARAMETER );
 845         return NULL;
 846     }
 847
 848     /* first check for a quoted file name */
 849
 850     if ((cmdline[0] == '"') && ((p = strchr( cmdline + 1, '"' ))))
 851     {
 852         int len = p - cmdline - 1;
 853         /* extract the quoted portion as file name */
 854         if (!(name = HeapAlloc( GetProcessHeap(), 0, len + 1 ))) return NULL;
 855         memcpy( name, cmdline + 1, len );
 856         name[len] = 0;
 857
 858         if (SearchPathA( NULL, name, ".exe", buflen, buffer, NULL ) ||
 859             SearchPathA( NULL, name, NULL, buflen, buffer, NULL ))
 860             ret = cmdline;  /* no change necessary */
 861         goto done;
 862     }
 863
 864     /* now try the command-line word by word */
 865
 866     if (!(name = HeapAlloc( GetProcessHeap(), 0, strlen(cmdline) + 1 ))) return NULL;
 867     pos = name;
 868     p = cmdline;
 869
 870     while (*p)
 871     {
 872         do *pos++ = *p++; while (*p && *p != ' ');
 873         *pos = 0;
 874         TRACE("trying '%s'\n", name );
 875         if (SearchPathA( NULL, name, ".exe", buflen, buffer, NULL ) ||
 876             SearchPathA( NULL, name, NULL, buflen, buffer, NULL ))
 877         {
 878             ret = cmdline;
 879             break;
 880         }
 881     }
 882
 883     if (!ret || !strchr( name, ' ' )) goto done;  /* no change necessary */
 884
 885     /* now build a new command-line with quotes */
 886
 887     if (!(ret = HeapAlloc( GetProcessHeap(), 0, strlen(cmdline) + 3 ))) goto done;
 888     sprintf( ret, "\"%s\"%s", name, p );
 889
 890  done:
 891     HeapFree( GetProcessHeap(), 0, name );
 892     return ret;
 893 }
 894
 895
 896 /**********************************************************************
 897  *       CreateProcessA          (KERNEL32.171)
 898  */
 899 BOOL WINAPI CreateProcessA( LPCSTR lpApplicationName, LPSTR lpCommandLine,
 900                             LPSECURITY_ATTRIBUTES lpProcessAttributes,
 901                             LPSECURITY_ATTRIBUTES lpThreadAttributes,
 902                             BOOL bInheritHandles, DWORD dwCreationFlags,
 903                             LPVOID lpEnvironment, LPCSTR lpCurrentDirectory,
 904                             LPSTARTUPINFOA lpStartupInfo,
 905                             LPPROCESS_INFORMATION lpProcessInfo )
 906 {
 907     BOOL retv = FALSE;
 908     HANDLE hFile;
 909     DWORD type;
 910     char name[MAX_PATH];
 911     LPSTR tidy_cmdline;
 912
 913     /* Process the AppName and/or CmdLine to get module name and path */
 914
 915     TRACE("app '%s' cmdline '%s'\n", lpApplicationName, lpCommandLine );
 916
 917     if (!(tidy_cmdline = get_file_name( lpApplicationName, lpCommandLine, name, sizeof(name) )))
 918         return FALSE;
 919
 920     /* Warn if unsupported features are used */
 921
 922     if (dwCreationFlags & DETACHED_PROCESS)
 923         FIXME("(%s,...): DETACHED_PROCESS ignored\n", name);
 924     if (dwCreationFlags & CREATE_NEW_CONSOLE)
 925         FIXME("(%s,...): CREATE_NEW_CONSOLE ignored\n", name);
 926     if (dwCreationFlags & NORMAL_PRIORITY_CLASS)
 927         FIXME("(%s,...): NORMAL_PRIORITY_CLASS ignored\n", name);
 928     if (dwCreationFlags & IDLE_PRIORITY_CLASS)
 929         FIXME("(%s,...): IDLE_PRIORITY_CLASS ignored\n", name);
 930     if (dwCreationFlags & HIGH_PRIORITY_CLASS)
 931         FIXME("(%s,...): HIGH_PRIORITY_CLASS ignored\n", name);
 932     if (dwCreationFlags & REALTIME_PRIORITY_CLASS)
 933         FIXME("(%s,...): REALTIME_PRIORITY_CLASS ignored\n", name);
 934     if (dwCreationFlags & CREATE_NEW_PROCESS_GROUP)
 935         FIXME("(%s,...): CREATE_NEW_PROCESS_GROUP ignored\n", name);
 936     if (dwCreationFlags & CREATE_UNICODE_ENVIRONMENT)
 937         FIXME("(%s,...): CREATE_UNICODE_ENVIRONMENT ignored\n", name);
 938     if (dwCreationFlags & CREATE_SEPARATE_WOW_VDM)
 939         FIXME("(%s,...): CREATE_SEPARATE_WOW_VDM ignored\n", name);
 940     if (dwCreationFlags & CREATE_SHARED_WOW_VDM)
 941         FIXME("(%s,...): CREATE_SHARED_WOW_VDM ignored\n", name);
 942     if (dwCreationFlags & CREATE_DEFAULT_ERROR_MODE)
 943         FIXME("(%s,...): CREATE_DEFAULT_ERROR_MODE ignored\n", name);
 944     if (dwCreationFlags & CREATE_NO_WINDOW)
 945         FIXME("(%s,...): CREATE_NO_WINDOW ignored\n", name);
 946     if (dwCreationFlags & PROFILE_USER)
 947         FIXME("(%s,...): PROFILE_USER ignored\n", name);
 948     if (dwCreationFlags & PROFILE_KERNEL)
 949         FIXME("(%s,...): PROFILE_KERNEL ignored\n", name);
 950     if (dwCreationFlags & PROFILE_SERVER)
 951         FIXME("(%s,...): PROFILE_SERVER ignored\n", name);
 952     if (lpCurrentDirectory)
 953         FIXME("(%s,...): lpCurrentDirectory %s ignored\n",
 954                       name, lpCurrentDirectory);
 955     if (lpStartupInfo->lpDesktop)
 956         FIXME("(%s,...): lpStartupInfo->lpDesktop %s ignored\n",
 957                       name, lpStartupInfo->lpDesktop);
 958     if (lpStartupInfo->lpTitle)
 959         FIXME("(%s,...): lpStartupInfo->lpTitle %s ignored\n",
 960                       name, lpStartupInfo->lpTitle);
 961     if (lpStartupInfo->dwFlags & STARTF_USECOUNTCHARS)
 962         FIXME("(%s,...): STARTF_USECOUNTCHARS (%ld,%ld) ignored\n",
 963                       name, lpStartupInfo->dwXCountChars, lpStartupInfo->dwYCountChars);
 964     if (lpStartupInfo->dwFlags & STARTF_USEFILLATTRIBUTE)
 965         FIXME("(%s,...): STARTF_USEFILLATTRIBUTE %lx ignored\n",
 966                       name, lpStartupInfo->dwFillAttribute);
 967     if (lpStartupInfo->dwFlags & STARTF_RUNFULLSCREEN)
 968         FIXME("(%s,...): STARTF_RUNFULLSCREEN ignored\n", name);
 969     if (lpStartupInfo->dwFlags & STARTF_FORCEONFEEDBACK)
 970         FIXME("(%s,...): STARTF_FORCEONFEEDBACK ignored\n", name);
 971     if (lpStartupInfo->dwFlags & STARTF_FORCEOFFFEEDBACK)
 972         FIXME("(%s,...): STARTF_FORCEOFFFEEDBACK ignored\n", name);
 973     if (lpStartupInfo->dwFlags & STARTF_USEHOTKEY)
 974         FIXME("(%s,...): STARTF_USEHOTKEY ignored\n", name);
 975
 976     /* Open file and determine executable type */
 977
 978     hFile = CreateFileA( name, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, 0, -1 );
 979     if (hFile == INVALID_HANDLE_VALUE) goto done;
 980
 981     if ( !MODULE_GetBinaryType( hFile, name, &type ) )
 982     {
 983         CloseHandle( hFile );
 984         retv = PROCESS_Create( -1, name, tidy_cmdline, lpEnvironment,
 985                                lpProcessAttributes, lpThreadAttributes,
 986                                bInheritHandles, dwCreationFlags,
 987                                lpStartupInfo, lpProcessInfo );
 988         goto done;
 989     }
 990
 991     /* Create process */
 992
 993     switch ( type )
 994     {
 995     case SCS_32BIT_BINARY:
 996     case SCS_WOW_BINARY:
 997     case SCS_DOS_BINARY:
 998         retv = PROCESS_Create( hFile, name, tidy_cmdline, lpEnvironment,
 999                                lpProcessAttributes, lpThreadAttributes,
1000                                bInheritHandles, dwCreationFlags,
1001                                lpStartupInfo, lpProcessInfo );
1002         break;
1003
1004     case SCS_PIF_BINARY:
1005     case SCS_POSIX_BINARY:
1006     case SCS_OS216_BINARY:
1007         FIXME("Unsupported executable type: %ld\n", type );
1008         /* fall through */
1009
1010     default:
1011         SetLastError( ERROR_BAD_FORMAT );
1012         break;
1013     }
1014     CloseHandle( hFile );
1015
1016  done:
1017     if (tidy_cmdline != lpCommandLine) HeapFree( GetProcessHeap(), 0, tidy_cmdline );
1018     return retv;
1019 }
1020
1021 /**********************************************************************
1022  *       CreateProcessW          (KERNEL32.172)
1023  * NOTES
1024  *  lpReserved is not converted
1025  */
1026 BOOL WINAPI CreateProcessW( LPCWSTR lpApplicationName, LPWSTR lpCommandLine,
1027                                 LPSECURITY_ATTRIBUTES lpProcessAttributes,
1028                                 LPSECURITY_ATTRIBUTES lpThreadAttributes,
1029                                 BOOL bInheritHandles, DWORD dwCreationFlags,
1030                                 LPVOID lpEnvironment, LPCWSTR lpCurrentDirectory,
1031                                 LPSTARTUPINFOW lpStartupInfo,
1032                                 LPPROCESS_INFORMATION lpProcessInfo )
1033 {   BOOL ret;
1034     STARTUPINFOA StartupInfoA;
1035
1036     LPSTR lpApplicationNameA = HEAP_strdupWtoA (GetProcessHeap(),0,lpApplicationName);
1037     LPSTR lpCommandLineA = HEAP_strdupWtoA (GetProcessHeap(),0,lpCommandLine);
1038     LPSTR lpCurrentDirectoryA = HEAP_strdupWtoA (GetProcessHeap(),0,lpCurrentDirectory);
1039
1040     memcpy (&StartupInfoA, lpStartupInfo, sizeof(STARTUPINFOA));
1041     StartupInfoA.lpDesktop = HEAP_strdupWtoA (GetProcessHeap(),0,lpStartupInfo->lpDesktop);
1042     StartupInfoA.lpTitle = HEAP_strdupWtoA (GetProcessHeap(),0,lpStartupInfo->lpTitle);
1043
1044     TRACE_(win32)("(%s,%s,...)\n", debugstr_w(lpApplicationName), debugstr_w(lpCommandLine));
1045
1046     if (lpStartupInfo->lpReserved)
1047       FIXME_(win32)("StartupInfo.lpReserved is used, please report (%s)\n", debugstr_w(lpStartupInfo->lpReserved));
1048
1049     ret = CreateProcessA(  lpApplicationNameA,  lpCommandLineA,
1050                              lpProcessAttributes, lpThreadAttributes,
1051                              bInheritHandles, dwCreationFlags,
1052                              lpEnvironment, lpCurrentDirectoryA,
1053                              &StartupInfoA, lpProcessInfo );
1054
1055     HeapFree( GetProcessHeap(), 0, lpCurrentDirectoryA );
1056     HeapFree( GetProcessHeap(), 0, lpCommandLineA );
1057     HeapFree( GetProcessHeap(), 0, StartupInfoA.lpDesktop );
1058     HeapFree( GetProcessHeap(), 0, StartupInfoA.lpTitle );
1059
1060     return ret;
1061 }
1062
1063 /***********************************************************************
1064  *              GetModuleHandleA         (KERNEL32.237)
1065  */
1066 HMODULE WINAPI GetModuleHandleA(LPCSTR module)
1067 {
1068     WINE_MODREF *wm;
1069
1070     if ( module == NULL )
1071         wm = PROCESS_Current()->exe_modref;
1072     else
1073         wm = MODULE_FindModule( module );
1074
1075     return wm? wm->module : 0;
1076 }
1077
1078 /***********************************************************************
1079  *              GetModuleHandleW
1080  */
1081 HMODULE WINAPI GetModuleHandleW(LPCWSTR module)
1082 {
1083     HMODULE hModule;
1084     LPSTR modulea = HEAP_strdupWtoA( GetProcessHeap(), 0, module );
1085     hModule = GetModuleHandleA( modulea );
1086     HeapFree( GetProcessHeap(), 0, modulea );
1087     return hModule;
1088 }
1089
1090
1091 /***********************************************************************
1092  *              GetModuleFileNameA      (KERNEL32.235)
1093  *
1094  * GetModuleFileNameA seems to *always* return the long path;
1095  * it's only GetModuleFileName16 that decides between short/long path
1096  * by checking if exe version >= 4.0.
1097  * (SDK docu doesn't mention this)
1098  */
1099 DWORD WINAPI GetModuleFileNameA(
1100         HMODULE hModule,        /* [in] module handle (32bit) */
1101         LPSTR lpFileName,       /* [out] filenamebuffer */
1102         DWORD size              /* [in] size of filenamebuffer */
1103 ) {
1104     WINE_MODREF *wm = MODULE32_LookupHMODULE( hModule );
1105
1106     if (!wm) /* can happen on start up or the like */
1107         return 0;
1108
1109     lstrcpynA( lpFileName, wm->filename, size );
1110
1111     TRACE("%s\n", lpFileName );
1112     return strlen(lpFileName);
1113 }
1114
1115
1116 /***********************************************************************
1117  *              GetModuleFileNameW      (KERNEL32.236)
1118  */
1119 DWORD WINAPI GetModuleFileNameW( HMODULE hModule, LPWSTR lpFileName,
1120                                    DWORD size )
1121 {
1122     LPSTR fnA = (char*)HeapAlloc( GetProcessHeap(), 0, size );
1123     DWORD res = GetModuleFileNameA( hModule, fnA, size );
1124     lstrcpynAtoW( lpFileName, fnA, size );
1125     HeapFree( GetProcessHeap(), 0, fnA );
1126     return res;
1127 }
1128
1129
1130 /***********************************************************************
1131  *           LoadLibraryExA   (KERNEL32)
1132  */
1133 HMODULE WINAPI LoadLibraryExA(LPCSTR libname, HANDLE hfile, DWORD flags)
1134 {
1135         WINE_MODREF *wm;
1136
1137         if(!libname)
1138         {
1139                 SetLastError(ERROR_INVALID_PARAMETER);
1140                 return 0;
1141         }
1142
1143         EnterCriticalSection(&PROCESS_Current()->crit_section);
1144
1145         wm = MODULE_LoadLibraryExA( libname, hfile, flags );
1146         if ( wm )
1147         {
1148                 if ( !MODULE_DllProcessAttach( wm, NULL ) )
1149                 {
1150                         WARN_(module)("Attach failed for module '%s', \n", libname);
1151                         MODULE_FreeLibrary(wm);
1152                         SetLastError(ERROR_DLL_INIT_FAILED);
1153                         wm = NULL;
1154                 }
1155         }
1156
1157         LeaveCriticalSection(&PROCESS_Current()->crit_section);
1158
1159         return wm ? wm->module : 0;
1160 }
1161
1162 /***********************************************************************
1163  *      MODULE_LoadLibraryExA   (internal)
1164  *
1165  * Load a PE style module according to the load order.
1166  *
1167  * The HFILE parameter is not used and marked reserved in the SDK. I can
1168  * only guess that it should force a file to be mapped, but I rather
1169  * ignore the parameter because it would be extremely difficult to
1170  * integrate this with different types of module represenations.
1171  *
1172  */
1173 WINE_MODREF *MODULE_LoadLibraryExA( LPCSTR libname, HFILE hfile, DWORD flags )
1174 {
1175         DWORD err = GetLastError();
1176         WINE_MODREF *pwm;
1177         int i;
1178         module_loadorder_t *plo;
1179
1180         EnterCriticalSection(&PROCESS_Current()->crit_section);
1181
1182         /* Check for already loaded module */
1183         if((pwm = MODULE_FindModule(libname)))
1184         {
1185                 if(!(pwm->flags & WINE_MODREF_MARKER))
1186                         pwm->refCount++;
1187                 TRACE("Already loaded module '%s' at 0x%08x, count=%d, \n", libname, pwm->module, pwm->refCount);
1188                 LeaveCriticalSection(&PROCESS_Current()->crit_section);
1189                 return pwm;
1190         }
1191
1192         plo = MODULE_GetLoadOrder(libname);
1193
1194         for(i = 0; i < MODULE_LOADORDER_NTYPES; i++)
1195         {
1196                 SetLastError( ERROR_FILE_NOT_FOUND );
1197                 switch(plo->loadorder[i])
1198                 {
1199                 case MODULE_LOADORDER_DLL:
1200                         TRACE("Trying native dll '%s'\n", libname);
1201                         pwm = PE_LoadLibraryExA(libname, flags);
1202                         break;
1203
1204                 case MODULE_LOADORDER_ELFDLL:
1205                         TRACE("Trying elfdll '%s'\n", libname);
1206                         if (!(pwm = BUILTIN32_LoadLibraryExA(libname, flags)))
1207                             pwm = ELFDLL_LoadLibraryExA(libname, flags);
1208                         break;
1209
1210                 case MODULE_LOADORDER_SO:
1211                         TRACE("Trying so-library '%s'\n", libname);
1212                         if (!(pwm = BUILTIN32_LoadLibraryExA(libname, flags)))
1213                             pwm = ELF_LoadLibraryExA(libname, flags);
1214                         break;
1215
1216                 case MODULE_LOADORDER_BI:
1217                         TRACE("Trying built-in '%s'\n", libname);
1218                         pwm = BUILTIN32_LoadLibraryExA(libname, flags);
1219                         break;
1220
1221                 default:
1222                         ERR("Got invalid loadorder type %d (%s index %d)\n", plo->loadorder[i], plo->modulename, i);
1223                 /* Fall through */
1224
1225                 case MODULE_LOADORDER_INVALID:  /* We ignore this as it is an empty entry */
1226                         pwm = NULL;
1227                         break;
1228                 }
1229
1230                 if(pwm)
1231                 {
1232                         /* Initialize DLL just loaded */
1233                         TRACE("Loaded module '%s' at 0x%08x, \n", libname, pwm->module);
1234
1235                         /* Set the refCount here so that an attach failure will */
1236                         /* decrement the dependencies through the MODULE_FreeLibrary call. */
1237                         pwm->refCount++;
1238
1239                         LeaveCriticalSection(&PROCESS_Current()->crit_section);
1240                         SetLastError( err );  /* restore last error */
1241                         return pwm;
1242                 }
1243
1244                 if(GetLastError() != ERROR_FILE_NOT_FOUND)
1245                         break;
1246         }
1247
1248         WARN("Failed to load module '%s'; error=0x%08lx, \n", libname, GetLastError());
1249         LeaveCriticalSection(&PROCESS_Current()->crit_section);
1250         return NULL;
1251 }
1252
1253 /***********************************************************************
1254  *           LoadLibraryA         (KERNEL32)
1255  */
1256 HMODULE WINAPI LoadLibraryA(LPCSTR libname) {
1257         return LoadLibraryExA(libname,0,0);
1258 }
1259
1260 /***********************************************************************
1261  *           LoadLibraryW         (KERNEL32)
1262  */
1263 HMODULE WINAPI LoadLibraryW(LPCWSTR libnameW)
1264 {
1265     return LoadLibraryExW(libnameW,0,0);
1266 }
1267
1268 /***********************************************************************
1269  *           LoadLibrary32_16   (KERNEL.452)
1270  */
1271 HMODULE WINAPI LoadLibrary32_16( LPCSTR libname )
1272 {
1273     HMODULE hModule;
1274
1275     SYSLEVEL_ReleaseWin16Lock();
1276     hModule = LoadLibraryA( libname );
1277     SYSLEVEL_RestoreWin16Lock();
1278
1279     return hModule;
1280 }
1281
1282 /***********************************************************************
1283  *           LoadLibraryExW       (KERNEL32)
1284  */
1285 HMODULE WINAPI LoadLibraryExW(LPCWSTR libnameW,HANDLE hfile,DWORD flags)
1286 {
1287     LPSTR libnameA = HEAP_strdupWtoA( GetProcessHeap(), 0, libnameW );
1288     HMODULE ret = LoadLibraryExA( libnameA , hfile, flags );
1289
1290     HeapFree( GetProcessHeap(), 0, libnameA );
1291     return ret;
1292 }
1293
1294 /***********************************************************************
1295  *           MODULE_FlushModrefs
1296  *
1297  * NOTE: Assumes that the process critical section is held!
1298  *
1299  * Remove all unused modrefs and call the internal unloading routines
1300  * for the library type.
1301  */
1302 static void MODULE_FlushModrefs(void)
1303 {
1304         WINE_MODREF *wm, *next;
1305
1306         for(wm = PROCESS_Current()->modref_list; wm; wm = next)
1307         {
1308                 next = wm->next;
1309
1310                 if(wm->refCount)
1311                         continue;
1312
1313                 /* Unlink this modref from the chain */
1314                 if(wm->next)
1315                         wm->next->prev = wm->prev;
1316                 if(wm->prev)
1317                         wm->prev->next = wm->next;
1318                 if(wm == PROCESS_Current()->modref_list)
1319                         PROCESS_Current()->modref_list = wm->next;
1320
1321                 /*
1322                  * The unloaders are also responsible for freeing the modref itself
1323                  * because the loaders were responsible for allocating it.
1324                  */
1325                 switch(wm->type)
1326                 {
1327                 case MODULE32_PE:       if ( !(wm->flags & WINE_MODREF_INTERNAL) )
1328                                                PE_UnloadLibrary(wm);
1329                                         else
1330                                                BUILTIN32_UnloadLibrary(wm);
1331                                         break;
1332                 case MODULE32_ELF:      ELF_UnloadLibrary(wm);          break;
1333                 case MODULE32_ELFDLL:   ELFDLL_UnloadLibrary(wm);       break;
1334
1335                 default:
1336                         ERR("Invalid or unhandled MODREF type %d encountered (wm=%p)\n", wm->type, wm);
1337                 }
1338         }
1339 }
1340
1341 /***********************************************************************
1342  *           FreeLibrary
1343  */
1344 BOOL WINAPI FreeLibrary(HINSTANCE hLibModule)
1345 {
1346     BOOL retv = FALSE;
1347     WINE_MODREF *wm;
1348
1349     EnterCriticalSection( &PROCESS_Current()->crit_section );
1350     PROCESS_Current()->free_lib_count++;
1351
1352     wm = MODULE32_LookupHMODULE( hLibModule );
1353     if ( !wm || !hLibModule )
1354         SetLastError( ERROR_INVALID_HANDLE );
1355     else
1356         retv = MODULE_FreeLibrary( wm );
1357
1358     PROCESS_Current()->free_lib_count--;
1359     LeaveCriticalSection( &PROCESS_Current()->crit_section );
1360
1361     return retv;
1362 }
1363
1364 /***********************************************************************
1365  *           MODULE_DecRefCount
1366  *
1367  * NOTE: Assumes that the process critical section is held!
1368  */
1369 static void MODULE_DecRefCount( WINE_MODREF *wm )
1370 {
1371     int i;
1372
1373     if ( wm->flags & WINE_MODREF_MARKER )
1374         return;
1375
1376     if ( wm->refCount <= 0 )
1377         return;
1378
1379     --wm->refCount;
1380     TRACE("(%s) refCount: %d\n", wm->modname, wm->refCount );
1381
1382     if ( wm->refCount == 0 )
1383     {
1384         wm->flags |= WINE_MODREF_MARKER;
1385
1386         for ( i = 0; i < wm->nDeps; i++ )
1387             if ( wm->deps[i] )
1388                 MODULE_DecRefCount( wm->deps[i] );
1389
1390         wm->flags &= ~WINE_MODREF_MARKER;
1391     }
1392 }
1393
1394 /***********************************************************************
1395  *           MODULE_FreeLibrary
1396  *
1397  * NOTE: Assumes that the process critical section is held!
1398  */
1399 BOOL MODULE_FreeLibrary( WINE_MODREF *wm )
1400 {
1401     TRACE("(%s) - START\n", wm->modname );
1402
1403     /* Recursively decrement reference counts */
1404     MODULE_DecRefCount( wm );
1405
1406     /* Call process detach notifications */
1407     if ( PROCESS_Current()->free_lib_count <= 1 )
1408     {
1409         struct unload_dll_request *req = get_req_buffer();
1410
1411         MODULE_DllProcessDetach( FALSE, NULL );
1412         req->base = (void *)wm->module;
1413         server_call_noerr( REQ_UNLOAD_DLL );
1414
1415         MODULE_FlushModrefs();
1416     }
1417
1418     TRACE("END\n");
1419
1420     return TRUE;
1421 }
1422
1423
1424 /***********************************************************************
1425  *           FreeLibraryAndExitThread
1426  */
1427 VOID WINAPI FreeLibraryAndExitThread(HINSTANCE hLibModule, DWORD dwExitCode)
1428 {
1429     FreeLibrary(hLibModule);
1430     ExitThread(dwExitCode);
1431 }
1432
1433 /***********************************************************************
1434  *           PrivateLoadLibrary       (KERNEL32)
1435  *
1436  * FIXME: rough guesswork, don't know what "Private" means
1437  */
1438 HINSTANCE WINAPI PrivateLoadLibrary(LPCSTR libname)
1439 {
1440         return (HINSTANCE)LoadLibrary16(libname);
1441 }
1442
1443
1444
1445 /***********************************************************************
1446  *           PrivateFreeLibrary       (KERNEL32)
1447  *
1448  * FIXME: rough guesswork, don't know what "Private" means
1449  */
1450 void WINAPI PrivateFreeLibrary(HINSTANCE handle)
1451 {
1452         FreeLibrary16((HINSTANCE16)handle);
1453 }
1454
1455
1456 /***********************************************************************
1457  *           WIN32_GetProcAddress16   (KERNEL32.36)
1458  * Get procaddress in 16bit module from win32... (kernel32 undoc. ordinal func)
1459  */
1460 FARPROC16 WINAPI WIN32_GetProcAddress16( HMODULE hModule, LPCSTR name )
1461 {
1462     WORD        ordinal;
1463     FARPROC16   ret;
1464
1465     if (!hModule) {
1466         WARN("hModule may not be 0!\n");
1467         return (FARPROC16)0;
1468     }
1469     if (HIWORD(hModule))
1470     {
1471         WARN("hModule is Win32 handle (%08x)\n", hModule );
1472         return (FARPROC16)0;
1473     }
1474     hModule = GetExePtr( hModule );
1475     if (HIWORD(name)) {
1476         ordinal = NE_GetOrdinal( hModule, name );
1477         TRACE("%04x '%s'\n", hModule, name );
1478     } else {
1479         ordinal = LOWORD(name);
1480         TRACE("%04x %04x\n", hModule, ordinal );
1481     }
1482     if (!ordinal) return (FARPROC16)0;
1483     ret = NE_GetEntryPoint( hModule, ordinal );
1484     TRACE("returning %08x\n",(UINT)ret);
1485     return ret;
1486 }
1487
1488 /***********************************************************************
1489  *           GetProcAddress16   (KERNEL.50)
1490  */
1491 FARPROC16 WINAPI GetProcAddress16( HMODULE16 hModule, SEGPTR name )
1492 {
1493     WORD ordinal;
1494     FARPROC16 ret;
1495
1496     if (!hModule) hModule = GetCurrentTask();
1497     hModule = GetExePtr( hModule );
1498
1499     if (HIWORD(name) != 0)
1500     {
1501         ordinal = NE_GetOrdinal( hModule, (LPSTR)PTR_SEG_TO_LIN(name) );
1502         TRACE("%04x '%s'\n", hModule, (LPSTR)PTR_SEG_TO_LIN(name) );
1503     }
1504     else
1505     {
1506         ordinal = LOWORD(name);
1507         TRACE("%04x %04x\n", hModule, ordinal );
1508     }
1509     if (!ordinal) return (FARPROC16)0;
1510
1511     ret = NE_GetEntryPoint( hModule, ordinal );
1512
1513     TRACE("returning %08x\n", (UINT)ret );
1514     return ret;
1515 }
1516
1517
1518 /***********************************************************************
1519  *           GetProcAddress             (KERNEL32.257)
1520  */
1521 FARPROC WINAPI GetProcAddress( HMODULE hModule, LPCSTR function )
1522 {
1523     return MODULE_GetProcAddress( hModule, function, TRUE );
1524 }
1525
1526 /***********************************************************************
1527  *           GetProcAddress32                   (KERNEL.453)
1528  */
1529 FARPROC WINAPI GetProcAddress32_16( HMODULE hModule, LPCSTR function )
1530 {
1531     return MODULE_GetProcAddress( hModule, function, FALSE );
1532 }
1533
1534 /***********************************************************************
1535  *           MODULE_GetProcAddress              (internal)
1536  */
1537 FARPROC MODULE_GetProcAddress(
1538         HMODULE hModule,        /* [in] current module handle */
1539         LPCSTR function,        /* [in] function to be looked up */
1540         BOOL snoop )
1541 {
1542     WINE_MODREF *wm = MODULE32_LookupHMODULE( hModule );
1543     FARPROC     retproc;
1544
1545     if (HIWORD(function))
1546         TRACE_(win32)("(%08lx,%s)\n",(DWORD)hModule,function);
1547     else
1548         TRACE_(win32)("(%08lx,%p)\n",(DWORD)hModule,function);
1549     if (!wm) {
1550         SetLastError(ERROR_INVALID_HANDLE);
1551         return (FARPROC)0;
1552     }
1553     switch (wm->type)
1554     {
1555     case MODULE32_PE:
1556         retproc = PE_FindExportedFunction( wm, function, snoop );
1557         if (!retproc) SetLastError(ERROR_PROC_NOT_FOUND);
1558         return retproc;
1559     case MODULE32_ELF:
1560         retproc = ELF_FindExportedFunction( wm, function);
1561         if (!retproc) SetLastError(ERROR_PROC_NOT_FOUND);
1562         return retproc;
1563     default:
1564         ERR("wine_modref type %d not handled.\n",wm->type);
1565         SetLastError(ERROR_INVALID_HANDLE);
1566         return (FARPROC)0;
1567     }
1568 }
1569
1570
1571 /***********************************************************************
1572  *           RtlImageNtHeader   (NTDLL)
1573  */
1574 PIMAGE_NT_HEADERS WINAPI RtlImageNtHeader(HMODULE hModule)
1575 {
1576     /* basically:
1577      * return  hModule+(((IMAGE_DOS_HEADER*)hModule)->e_lfanew);
1578      * but we could get HMODULE16 or the like (think builtin modules)
1579      */
1580
1581     WINE_MODREF *wm = MODULE32_LookupHMODULE( hModule );
1582     if (!wm || (wm->type != MODULE32_PE)) return (PIMAGE_NT_HEADERS)0;
1583     return PE_HEADER(wm->module);
1584 }
1585
1586
1587 /***************************************************************************
1588  *              HasGPHandler                    (KERNEL.338)
1589  */
1590
1591 #include "pshpack1.h"
1592 typedef struct _GPHANDLERDEF
1593 {
1594     WORD selector;
1595     WORD rangeStart;
1596     WORD rangeEnd;
1597     WORD handler;
1598 } GPHANDLERDEF;
1599 #include "poppack.h"
1600
1601 SEGPTR WINAPI HasGPHandler16( SEGPTR address )
1602 {
1603     HMODULE16 hModule;
1604     int gpOrdinal;
1605     SEGPTR gpPtr;
1606     GPHANDLERDEF *gpHandler;
1607
1608     if (    (hModule = FarGetOwner16( SELECTOROF(address) )) != 0
1609          && (gpOrdinal = NE_GetOrdinal( hModule, "__GP" )) != 0
1610          && (gpPtr = (SEGPTR)NE_GetEntryPointEx( hModule, gpOrdinal, FALSE )) != 0
1611          && !IsBadReadPtr16( gpPtr, sizeof(GPHANDLERDEF) )
1612          && (gpHandler = PTR_SEG_TO_LIN( gpPtr )) != NULL )
1613     {
1614         while (gpHandler->selector)
1615         {
1616             if (    SELECTOROF(address) == gpHandler->selector
1617                  && OFFSETOF(address)   >= gpHandler->rangeStart
1618                  && OFFSETOF(address)   <  gpHandler->rangeEnd  )
1619                 return PTR_SEG_OFF_TO_SEGPTR( gpHandler->selector,
1620                                               gpHandler->handler );
1621             gpHandler++;
1622         }
1623     }
1624
1625     return 0;
1626 }
1627