loader/module.c

   1 /*
   2  * Modules
   3  *
   4  * Copyright 1995 Alexandre Julliard
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  */
  20
  21 #include "config.h"
  22 #include "wine/port.h"
  23
  24 #include <assert.h>
  25 #include <fcntl.h>
  26 #include <stdlib.h>
  27 #include <stdio.h>
  28 #include <string.h>
  29 #include <sys/types.h>
  30 #ifdef HAVE_UNISTD_H
  31 # include <unistd.h>
  32 #endif
  33 #include "wine/winbase16.h"
  34 #include "winerror.h"
  35 #include "winternl.h"
  36 #include "heap.h"
  37 #include "file.h"
  38 #include "module.h"
  39
  40 #include "wine/debug.h"
  41 #include "wine/unicode.h"
  42 #include "wine/server.h"
  43
  44 WINE_DEFAULT_DEBUG_CHANNEL(module);
  45 WINE_DECLARE_DEBUG_CHANNEL(win32);
  46 WINE_DECLARE_DEBUG_CHANNEL(loaddll);
  47
  48 inline static HMODULE get_exe_module(void)
  49 {
  50     HMODULE mod;
  51     /* FIXME: should look into PEB */
  52     LdrGetDllHandle( 0, 0, NULL, &mod );
  53     return mod;
  54 }
  55
  56 /***********************************************************************
  57  *           wait_input_idle
  58  *
  59  * Wrapper to call WaitForInputIdle USER function
  60  */
  61 typedef DWORD (WINAPI *WaitForInputIdle_ptr)( HANDLE hProcess, DWORD dwTimeOut );
  62
  63 static DWORD wait_input_idle( HANDLE process, DWORD timeout )
  64 {
  65     HMODULE mod = GetModuleHandleA( "user32.dll" );
  66     if (mod)
  67     {
  68         WaitForInputIdle_ptr ptr = (WaitForInputIdle_ptr)GetProcAddress( mod, "WaitForInputIdle" );
  69         if (ptr) return ptr( process, timeout );
  70     }
  71     return 0;
  72 }
  73
  74
  75 /****************************************************************************
  76  *              DisableThreadLibraryCalls (KERNEL32.@)
  77  *
  78  * Don't call DllEntryPoint for DLL_THREAD_{ATTACH,DETACH} if set.
  79  */
  80 BOOL WINAPI DisableThreadLibraryCalls( HMODULE hModule )
  81 {
  82     NTSTATUS    nts = LdrDisableThreadCalloutsForDll( hModule );
  83     if (nts == STATUS_SUCCESS) return TRUE;
  84
  85     SetLastError( RtlNtStatusToDosError( nts ) );
  86     return FALSE;
  87 }
  88
  89
  90 /***********************************************************************
  91  *           MODULE_CreateDummyModule
  92  *
  93  * Create a dummy NE module for Win32 or Winelib.
  94  */
  95 HMODULE16 MODULE_CreateDummyModule( LPCSTR filename, HMODULE module32 )
  96 {
  97     HMODULE16 hModule;
  98     NE_MODULE *pModule;
  99     SEGTABLEENTRY *pSegment;
 100     char *pStr,*s;
 101     unsigned int len;
 102     const char* basename;
 103     OFSTRUCT *ofs;
 104     int of_size, size;
 105
 106     /* Extract base filename */
 107     basename = strrchr(filename, '\\');
 108     if (!basename) basename = filename;
 109     else basename++;
 110     len = strlen(basename);
 111     if ((s = strchr(basename, '.'))) len = s - basename;
 112
 113     /* Allocate module */
 114     of_size = sizeof(OFSTRUCT) - sizeof(ofs->szPathName)
 115                     + strlen(filename) + 1;
 116     size = sizeof(NE_MODULE) +
 117                  /* loaded file info */
 118                  ((of_size + 3) & ~3) +
 119                  /* segment table: DS,CS */
 120                  2 * sizeof(SEGTABLEENTRY) +
 121                  /* name table */
 122                  len + 2 +
 123                  /* several empty tables */
 124                  8;
 125
 126     hModule = GlobalAlloc16( GMEM_MOVEABLE | GMEM_ZEROINIT, size );
 127     if (!hModule) return (HMODULE16)11;  /* invalid exe */
 128
 129     FarSetOwner16( hModule, hModule );
 130     pModule = (NE_MODULE *)GlobalLock16( hModule );
 131
 132     /* Set all used entries */
 133     pModule->magic            = IMAGE_OS2_SIGNATURE;
 134     pModule->count            = 1;
 135     pModule->next             = 0;
 136     pModule->flags            = 0;
 137     pModule->dgroup           = 0;
 138     pModule->ss               = 1;
 139     pModule->cs               = 2;
 140     pModule->heap_size        = 0;
 141     pModule->stack_size       = 0;
 142     pModule->seg_count        = 2;
 143     pModule->modref_count     = 0;
 144     pModule->nrname_size      = 0;
 145     pModule->fileinfo         = sizeof(NE_MODULE);
 146     pModule->os_flags         = NE_OSFLAGS_WINDOWS;
 147     pModule->self             = hModule;
 148     pModule->module32         = module32;
 149
 150     /* Set version and flags */
 151     if (module32)
 152     {
 153         IMAGE_NT_HEADERS *nt = RtlImageNtHeader( module32 );
 154         pModule->expected_version = ((nt->OptionalHeader.MajorSubsystemVersion & 0xff) << 8 ) |
 155                                      (nt->OptionalHeader.MinorSubsystemVersion & 0xff);
 156         pModule->flags |= NE_FFLAGS_WIN32;
 157         if (nt->FileHeader.Characteristics & IMAGE_FILE_DLL)
 158             pModule->flags |= NE_FFLAGS_LIBMODULE | NE_FFLAGS_SINGLEDATA;
 159     }
 160
 161     /* Set loaded file information */
 162     ofs = (OFSTRUCT *)(pModule + 1);
 163     memset( ofs, 0, of_size );
 164     ofs->cBytes = of_size < 256 ? of_size : 255;   /* FIXME */
 165     strcpy( ofs->szPathName, filename );
 166
 167     pSegment = (SEGTABLEENTRY*)((char*)(pModule + 1) + ((of_size + 3) & ~3));
 168     pModule->seg_table = (int)pSegment - (int)pModule;
 169     /* Data segment */
 170     pSegment->size    = 0;
 171     pSegment->flags   = NE_SEGFLAGS_DATA;
 172     pSegment->minsize = 0x1000;
 173     pSegment++;
 174     /* Code segment */
 175     pSegment->flags   = 0;
 176     pSegment++;
 177
 178     /* Module name */
 179     pStr = (char *)pSegment;
 180     pModule->name_table = (int)pStr - (int)pModule;
 181     assert(len<256);
 182     *pStr = len;
 183     lstrcpynA( pStr+1, basename, len+1 );
 184     pStr += len+2;
 185
 186     /* All tables zero terminated */
 187     pModule->res_table = pModule->import_table = pModule->entry_table =
 188                 (int)pStr - (int)pModule;
 189
 190     NE_RegisterModule( pModule );
 191     return hModule;
 192 }
 193
 194
 195 /* Check whether a file is an OS/2 or a very old Windows executable
 196  * by testing on import of KERNEL.
 197  *
 198  * FIXME: is reading the module imports the only way of discerning
 199  *        old Windows binaries from OS/2 ones ? At least it seems so...
 200  */
 201 static enum binary_type MODULE_Decide_OS2_OldWin(HANDLE hfile, const IMAGE_DOS_HEADER *mz,
 202                                                  const IMAGE_OS2_HEADER *ne)
 203 {
 204     DWORD currpos = SetFilePointer( hfile, 0, NULL, SEEK_CUR);
 205     enum binary_type ret = BINARY_OS216;
 206     LPWORD modtab = NULL;
 207     LPSTR nametab = NULL;
 208     DWORD len;
 209     int i;
 210
 211     /* read modref table */
 212     if ( (SetFilePointer( hfile, mz->e_lfanew + ne->ne_modtab, NULL, SEEK_SET ) == -1)
 213       || (!(modtab = HeapAlloc( GetProcessHeap(), 0, ne->ne_cmod*sizeof(WORD))))
 214       || (!(ReadFile(hfile, modtab, ne->ne_cmod*sizeof(WORD), &len, NULL)))
 215       || (len != ne->ne_cmod*sizeof(WORD)) )
 216         goto broken;
 217
 218     /* read imported names table */
 219     if ( (SetFilePointer( hfile, mz->e_lfanew + ne->ne_imptab, NULL, SEEK_SET ) == -1)
 220       || (!(nametab = HeapAlloc( GetProcessHeap(), 0, ne->ne_enttab - ne->ne_imptab)))
 221       || (!(ReadFile(hfile, nametab, ne->ne_enttab - ne->ne_imptab, &len, NULL)))
 222       || (len != ne->ne_enttab - ne->ne_imptab) )
 223         goto broken;
 224
 225     for (i=0; i < ne->ne_cmod; i++)
 226     {
 227         LPSTR module = &nametab[modtab[i]];
 228         TRACE("modref: %.*s\n", module[0], &module[1]);
 229         if (!(strncmp(&module[1], "KERNEL", module[0])))
 230         { /* very old Windows file */
 231             MESSAGE("This seems to be a very old (pre-3.0) Windows executable. Expect crashes, especially if this is a real-mode binary !\n");
 232             ret = BINARY_WIN16;
 233             goto good;
 234         }
 235     }
 236
 237 broken:
 238     ERR("Hmm, an error occurred. Is this binary file broken ?\n");
 239
 240 good:
 241     HeapFree( GetProcessHeap(), 0, modtab);
 242     HeapFree( GetProcessHeap(), 0, nametab);
 243     SetFilePointer( hfile, currpos, NULL, SEEK_SET); /* restore filepos */
 244     return ret;
 245 }
 246
 247 /***********************************************************************
 248  *           MODULE_GetBinaryType
 249  */
 250 enum binary_type MODULE_GetBinaryType( HANDLE hfile )
 251 {
 252     union
 253     {
 254         struct
 255         {
 256             unsigned char magic[4];
 257             unsigned char ignored[12];
 258             unsigned short type;
 259         } elf;
 260         IMAGE_DOS_HEADER mz;
 261     } header;
 262
 263     char magic[4];
 264     DWORD len;
 265
 266     /* Seek to the start of the file and read the header information. */
 267     if (SetFilePointer( hfile, 0, NULL, SEEK_SET ) == -1)
 268         return BINARY_UNKNOWN;
 269     if (!ReadFile( hfile, &header, sizeof(header), &len, NULL ) || len != sizeof(header))
 270         return BINARY_UNKNOWN;
 271
 272     if (!memcmp( header.elf.magic, "\177ELF", 4 ))
 273     {
 274         /* FIXME: we don't bother to check byte order, architecture, etc. */
 275         switch(header.elf.type)
 276         {
 277         case 2: return BINARY_UNIX_EXE;
 278         case 3: return BINARY_UNIX_LIB;
 279         }
 280         return BINARY_UNKNOWN;
 281     }
 282
 283     /* Not ELF, try DOS */
 284
 285     if (header.mz.e_magic == IMAGE_DOS_SIGNATURE)
 286     {
 287         /* We do have a DOS image so we will now try to seek into
 288          * the file by the amount indicated by the field
 289          * "Offset to extended header" and read in the
 290          * "magic" field information at that location.
 291          * This will tell us if there is more header information
 292          * to read or not.
 293          */
 294         /* But before we do we will make sure that header
 295          * structure encompasses the "Offset to extended header"
 296          * field.
 297          */
 298         if ((header.mz.e_cparhdr << 4) < sizeof(IMAGE_DOS_HEADER))
 299             return BINARY_DOS;
 300         if (header.mz.e_crlc && (header.mz.e_lfarlc < sizeof(IMAGE_DOS_HEADER)))
 301             return BINARY_DOS;
 302         if (header.mz.e_lfanew < sizeof(IMAGE_DOS_HEADER))
 303             return BINARY_DOS;
 304         if (SetFilePointer( hfile, header.mz.e_lfanew, NULL, SEEK_SET ) == -1)
 305             return BINARY_DOS;
 306         if (!ReadFile( hfile, magic, sizeof(magic), &len, NULL ) || len != sizeof(magic))
 307             return BINARY_DOS;
 308
 309         /* Reading the magic field succeeded so
 310          * we will try to determine what type it is.
 311          */
 312         if (!memcmp( magic, "PE\0\0", 4 ))
 313         {
 314             IMAGE_FILE_HEADER FileHeader;
 315
 316             if (ReadFile( hfile, &FileHeader, sizeof(FileHeader), &len, NULL ) && len == sizeof(FileHeader))
 317             {
 318                 if (FileHeader.Characteristics & IMAGE_FILE_DLL) return BINARY_PE_DLL;
 319                 return BINARY_PE_EXE;
 320             }
 321             return BINARY_DOS;
 322         }
 323
 324         if (!memcmp( magic, "NE", 2 ))
 325         {
 326             /* This is a Windows executable (NE) header.  This can
 327              * mean either a 16-bit OS/2 or a 16-bit Windows or even a
 328              * DOS program (running under a DOS extender).  To decide
 329              * which, we'll have to read the NE header.
 330              */
 331             IMAGE_OS2_HEADER ne;
 332             if (    SetFilePointer( hfile, header.mz.e_lfanew, NULL, SEEK_SET ) != -1
 333                     && ReadFile( hfile, &ne, sizeof(ne), &len, NULL )
 334                     && len == sizeof(ne) )
 335             {
 336                 switch ( ne.ne_exetyp )
 337                 {
 338                 case 2:  return BINARY_WIN16;
 339                 case 5:  return BINARY_DOS;
 340                 default: return MODULE_Decide_OS2_OldWin(hfile, &header.mz, &ne);
 341                 }
 342             }
 343             /* Couldn't read header, so abort. */
 344             return BINARY_DOS;
 345         }
 346
 347         /* Unknown extended header, but this file is nonetheless DOS-executable. */
 348         return BINARY_DOS;
 349     }
 350
 351     return BINARY_UNKNOWN;
 352 }
 353
 354 /***********************************************************************
 355  *             GetBinaryTypeA                     [KERNEL32.@]
 356  *             GetBinaryType                      [KERNEL32.@]
 357  *
 358  * The GetBinaryType function determines whether a file is executable
 359  * or not and if it is it returns what type of executable it is.
 360  * The type of executable is a property that determines in which
 361  * subsystem an executable file runs under.
 362  *
 363  * Binary types returned:
 364  * SCS_32BIT_BINARY: A Win32 based application
 365  * SCS_DOS_BINARY: An MS-Dos based application
 366  * SCS_WOW_BINARY: A Win16 based application
 367  * SCS_PIF_BINARY: A PIF file that executes an MS-Dos based app
 368  * SCS_POSIX_BINARY: A POSIX based application ( Not implemented )
 369  * SCS_OS216_BINARY: A 16bit OS/2 based application
 370  *
 371  * Returns TRUE if the file is an executable in which case
 372  * the value pointed by lpBinaryType is set.
 373  * Returns FALSE if the file is not an executable or if the function fails.
 374  *
 375  * To do so it opens the file and reads in the header information
 376  * if the extended header information is not present it will
 377  * assume that the file is a DOS executable.
 378  * If the extended header information is present it will
 379  * determine if the file is a 16 or 32 bit Windows executable
 380  * by check the flags in the header.
 381  *
 382  * Note that .COM and .PIF files are only recognized by their
 383  * file name extension; but Windows does it the same way ...
 384  */
 385 BOOL WINAPI GetBinaryTypeA( LPCSTR lpApplicationName, LPDWORD lpBinaryType )
 386 {
 387     BOOL ret = FALSE;
 388     HANDLE hfile;
 389     char *ptr;
 390
 391     TRACE_(win32)("%s\n", lpApplicationName );
 392
 393     /* Sanity check.
 394      */
 395     if ( lpApplicationName == NULL || lpBinaryType == NULL )
 396         return FALSE;
 397
 398     /* Open the file indicated by lpApplicationName for reading.
 399      */
 400     hfile = CreateFileA( lpApplicationName, GENERIC_READ, FILE_SHARE_READ,
 401                          NULL, OPEN_EXISTING, 0, 0 );
 402     if ( hfile == INVALID_HANDLE_VALUE )
 403         return FALSE;
 404
 405     /* Check binary type
 406      */
 407     switch(MODULE_GetBinaryType( hfile ))
 408     {
 409     case BINARY_UNKNOWN:
 410         /* try to determine from file name */
 411         ptr = strrchr( lpApplicationName, '.' );
 412         if (!ptr) break;
 413         if (!FILE_strcasecmp( ptr, ".COM" ))
 414         {
 415             *lpBinaryType = SCS_DOS_BINARY;
 416             ret = TRUE;
 417         }
 418         else if (!FILE_strcasecmp( ptr, ".PIF" ))
 419         {
 420             *lpBinaryType = SCS_PIF_BINARY;
 421             ret = TRUE;
 422         }
 423         break;
 424     case BINARY_PE_EXE:
 425     case BINARY_PE_DLL:
 426         *lpBinaryType = SCS_32BIT_BINARY;
 427         ret = TRUE;
 428         break;
 429     case BINARY_WIN16:
 430         *lpBinaryType = SCS_WOW_BINARY;
 431         ret = TRUE;
 432         break;
 433     case BINARY_OS216:
 434         *lpBinaryType = SCS_OS216_BINARY;
 435         ret = TRUE;
 436         break;
 437     case BINARY_DOS:
 438         *lpBinaryType = SCS_DOS_BINARY;
 439         ret = TRUE;
 440         break;
 441     case BINARY_UNIX_EXE:
 442     case BINARY_UNIX_LIB:
 443         ret = FALSE;
 444         break;
 445     }
 446
 447     CloseHandle( hfile );
 448     return ret;
 449 }
 450
 451 /***********************************************************************
 452  *             GetBinaryTypeW                      [KERNEL32.@]
 453  */
 454 BOOL WINAPI GetBinaryTypeW( LPCWSTR lpApplicationName, LPDWORD lpBinaryType )
 455 {
 456     BOOL ret = FALSE;
 457     LPSTR strNew = NULL;
 458
 459     TRACE_(win32)("%s\n", debugstr_w(lpApplicationName) );
 460
 461     /* Sanity check.
 462      */
 463     if ( lpApplicationName == NULL || lpBinaryType == NULL )
 464         return FALSE;
 465
 466     /* Convert the wide string to a ascii string.
 467      */
 468     strNew = HEAP_strdupWtoA( GetProcessHeap(), 0, lpApplicationName );
 469
 470     if ( strNew != NULL )
 471     {
 472         ret = GetBinaryTypeA( strNew, lpBinaryType );
 473
 474         /* Free the allocated string.
 475          */
 476         HeapFree( GetProcessHeap(), 0, strNew );
 477     }
 478
 479     return ret;
 480 }
 481
 482
 483 /***********************************************************************
 484  *           WinExec     (KERNEL.166)
 485  */
 486 HINSTANCE16 WINAPI WinExec16( LPCSTR lpCmdLine, UINT16 nCmdShow )
 487 {
 488     LPCSTR p, args = NULL;
 489     LPCSTR name_beg, name_end;
 490     LPSTR name, cmdline;
 491     int arglen;
 492     HINSTANCE16 ret;
 493     char buffer[MAX_PATH];
 494
 495     if (*lpCmdLine == '"') /* has to be only one and only at beginning ! */
 496     {
 497       name_beg = lpCmdLine+1;
 498       p = strchr ( lpCmdLine+1, '"' );
 499       if (p)
 500       {
 501           name_end = p;
 502           args = strchr ( p, ' ' );
 503       }
 504       else /* yes, even valid with trailing '"' missing */
 505           name_end = lpCmdLine+strlen(lpCmdLine);
 506     }
 507     else
 508     {
 509       name_beg = lpCmdLine;
 510       args = strchr( lpCmdLine, ' ' );
 511       name_end = args ? args : lpCmdLine+strlen(lpCmdLine);
 512     }
 513
 514     if ((name_beg == lpCmdLine) && (!args))
 515     { /* just use the original cmdline string as file name */
 516         name = (LPSTR)lpCmdLine;
 517     }
 518     else
 519     {
 520         if (!(name = HeapAlloc( GetProcessHeap(), 0, name_end - name_beg + 1 )))
 521             return ERROR_NOT_ENOUGH_MEMORY;
 522         memcpy( name, name_beg, name_end - name_beg );
 523         name[name_end - name_beg] = '\0';
 524     }
 525
 526     if (args)
 527     {
 528         args++;
 529         arglen = strlen(args);
 530         cmdline = HeapAlloc( GetProcessHeap(), 0, 2 + arglen );
 531         cmdline[0] = (BYTE)arglen;
 532         strcpy( cmdline + 1, args );
 533     }
 534     else
 535     {
 536         cmdline = HeapAlloc( GetProcessHeap(), 0, 2 );
 537         cmdline[0] = cmdline[1] = 0;
 538     }
 539
 540     TRACE("name: '%s', cmdline: '%.*s'\n", name, cmdline[0], &cmdline[1]);
 541
 542     if (SearchPathA( NULL, name, ".exe", sizeof(buffer), buffer, NULL ))
 543     {
 544         LOADPARAMS16 params;
 545         WORD showCmd[2];
 546         showCmd[0] = 2;
 547         showCmd[1] = nCmdShow;
 548
 549         params.hEnvironment = 0;
 550         params.cmdLine = MapLS( cmdline );
 551         params.showCmd = MapLS( showCmd );
 552         params.reserved = 0;
 553
 554         ret = LoadModule16( buffer, &params );
 555         UnMapLS( params.cmdLine );
 556         UnMapLS( params.showCmd );
 557     }
 558     else ret = GetLastError();
 559
 560     HeapFree( GetProcessHeap(), 0, cmdline );
 561     if (name != lpCmdLine) HeapFree( GetProcessHeap(), 0, name );
 562
 563     if (ret == 21)  /* 32-bit module */
 564     {
 565         DWORD count;
 566         ReleaseThunkLock( &count );
 567         ret = LOWORD( WinExec( lpCmdLine, nCmdShow ) );
 568         RestoreThunkLock( count );
 569     }
 570     return ret;
 571 }
 572
 573 /***********************************************************************
 574  *           WinExec   (KERNEL32.@)
 575  */
 576 UINT WINAPI WinExec( LPCSTR lpCmdLine, UINT nCmdShow )
 577 {
 578     PROCESS_INFORMATION info;
 579     STARTUPINFOA startup;
 580     char *cmdline;
 581     UINT ret;
 582
 583     memset( &startup, 0, sizeof(startup) );
 584     startup.cb = sizeof(startup);
 585     startup.dwFlags = STARTF_USESHOWWINDOW;
 586     startup.wShowWindow = nCmdShow;
 587
 588     /* cmdline needs to be writeable for CreateProcess */
 589     if (!(cmdline = HeapAlloc( GetProcessHeap(), 0, strlen(lpCmdLine)+1 ))) return 0;
 590     strcpy( cmdline, lpCmdLine );
 591
 592     if (CreateProcessA( NULL, cmdline, NULL, NULL, FALSE,
 593                         0, NULL, NULL, &startup, &info ))
 594     {
 595         /* Give 30 seconds to the app to come up */
 596         if (wait_input_idle( info.hProcess, 30000 ) == 0xFFFFFFFF)
 597             WARN("WaitForInputIdle failed: Error %ld\n", GetLastError() );
 598         ret = 33;
 599         /* Close off the handles */
 600         CloseHandle( info.hThread );
 601         CloseHandle( info.hProcess );
 602     }
 603     else if ((ret = GetLastError()) >= 32)
 604     {
 605         FIXME("Strange error set by CreateProcess: %d\n", ret );
 606         ret = 11;
 607     }
 608     HeapFree( GetProcessHeap(), 0, cmdline );
 609     return ret;
 610 }
 611
 612 /**********************************************************************
 613  *          LoadModule    (KERNEL32.@)
 614  */
 615 HINSTANCE WINAPI LoadModule( LPCSTR name, LPVOID paramBlock )
 616 {
 617     LOADPARAMS *params = (LOADPARAMS *)paramBlock;
 618     PROCESS_INFORMATION info;
 619     STARTUPINFOA startup;
 620     HINSTANCE hInstance;
 621     LPSTR cmdline, p;
 622     char filename[MAX_PATH];
 623     BYTE len;
 624
 625     if (!name) return (HINSTANCE)ERROR_FILE_NOT_FOUND;
 626
 627     if (!SearchPathA( NULL, name, ".exe", sizeof(filename), filename, NULL ) &&
 628         !SearchPathA( NULL, name, NULL, sizeof(filename), filename, NULL ))
 629         return (HINSTANCE)GetLastError();
 630
 631     len = (BYTE)params->lpCmdLine[0];
 632     if (!(cmdline = HeapAlloc( GetProcessHeap(), 0, strlen(filename) + len + 2 )))
 633         return (HINSTANCE)ERROR_NOT_ENOUGH_MEMORY;
 634
 635     strcpy( cmdline, filename );
 636     p = cmdline + strlen(cmdline);
 637     *p++ = ' ';
 638     memcpy( p, params->lpCmdLine + 1, len );
 639     p[len] = 0;
 640
 641     memset( &startup, 0, sizeof(startup) );
 642     startup.cb = sizeof(startup);
 643     if (params->lpCmdShow)
 644     {
 645         startup.dwFlags = STARTF_USESHOWWINDOW;
 646         startup.wShowWindow = params->lpCmdShow[1];
 647     }
 648
 649     if (CreateProcessA( filename, cmdline, NULL, NULL, FALSE, 0,
 650                         params->lpEnvAddress, NULL, &startup, &info ))
 651     {
 652         /* Give 30 seconds to the app to come up */
 653         if (wait_input_idle( info.hProcess, 30000 ) ==  0xFFFFFFFF )
 654             WARN("WaitForInputIdle failed: Error %ld\n", GetLastError() );
 655         hInstance = (HINSTANCE)33;
 656         /* Close off the handles */
 657         CloseHandle( info.hThread );
 658         CloseHandle( info.hProcess );
 659     }
 660     else if ((hInstance = (HINSTANCE)GetLastError()) >= (HINSTANCE)32)
 661     {
 662         FIXME("Strange error set by CreateProcess: %p\n", hInstance );
 663         hInstance = (HINSTANCE)11;
 664     }
 665
 666     HeapFree( GetProcessHeap(), 0, cmdline );
 667     return hInstance;
 668 }
 669
 670
 671 /***********************************************************************
 672  *              GetModuleHandleA         (KERNEL32.@)
 673  *              GetModuleHandle32        (KERNEL.488)
 674  */
 675 HMODULE WINAPI GetModuleHandleA(LPCSTR module)
 676 {
 677     NTSTATUS            nts;
 678     HMODULE             ret;
 679
 680     if (module)
 681     {
 682         UNICODE_STRING      wstr;
 683
 684         RtlCreateUnicodeStringFromAsciiz(&wstr, module);
 685         nts = LdrGetDllHandle(0, 0, &wstr, &ret);
 686         RtlFreeUnicodeString( &wstr );
 687     }
 688     else
 689         nts = LdrGetDllHandle(0, 0, NULL, &ret);
 690     if (nts != STATUS_SUCCESS)
 691     {
 692         ret = 0;
 693         SetLastError( RtlNtStatusToDosError( nts ) );
 694     }
 695
 696     return ret;
 697 }
 698
 699 /***********************************************************************
 700  *              GetModuleHandleW (KERNEL32.@)
 701  */
 702 HMODULE WINAPI GetModuleHandleW(LPCWSTR module)
 703 {
 704     NTSTATUS            nts;
 705     HMODULE             ret;
 706
 707     if (module)
 708     {
 709         UNICODE_STRING      wstr;
 710
 711         RtlInitUnicodeString( &wstr, module );
 712         nts = LdrGetDllHandle( 0, 0, &wstr, &ret);
 713     }
 714     else
 715         nts = LdrGetDllHandle( 0, 0, NULL, &ret);
 716
 717     if (nts != STATUS_SUCCESS)
 718     {
 719         SetLastError( RtlNtStatusToDosError( nts ) );
 720         ret = 0;
 721     }
 722     return ret;
 723 }
 724
 725
 726 /***********************************************************************
 727  *              GetModuleFileNameA      (KERNEL32.@)
 728  *              GetModuleFileName32     (KERNEL.487)
 729  *
 730  * GetModuleFileNameA seems to *always* return the long path;
 731  * it's only GetModuleFileName16 that decides between short/long path
 732  * by checking if exe version >= 4.0.
 733  * (SDK docu doesn't mention this)
 734  */
 735 DWORD WINAPI GetModuleFileNameA(
 736         HMODULE hModule,        /* [in] module handle (32bit) */
 737         LPSTR lpFileName,       /* [out] filenamebuffer */
 738         DWORD size )            /* [in] size of filenamebuffer */
 739 {
 740     LPWSTR filenameW = HeapAlloc( GetProcessHeap(), 0, size * sizeof(WCHAR) );
 741
 742     if (!filenameW)
 743     {
 744         SetLastError( ERROR_NOT_ENOUGH_MEMORY );
 745         return 0;
 746     }
 747     GetModuleFileNameW( hModule, filenameW, size );
 748     WideCharToMultiByte( CP_ACP, 0, filenameW, -1, lpFileName, size, NULL, NULL );
 749     HeapFree( GetProcessHeap(), 0, filenameW );
 750     return strlen( lpFileName );
 751 }
 752
 753 /***********************************************************************
 754  *              GetModuleFileNameW      (KERNEL32.@)
 755  */
 756 DWORD WINAPI GetModuleFileNameW( HMODULE hModule, LPWSTR lpFileName, DWORD size )
 757 {
 758     ULONG magic;
 759
 760     lpFileName[0] = 0;
 761
 762     LdrLockLoaderLock( 0, NULL, &magic );
 763     if (!hModule && !(NtCurrentTeb()->tibflags & TEBF_WIN32))
 764     {
 765         /* 16-bit task - get current NE module name */
 766         NE_MODULE *pModule = NE_GetPtr( GetCurrentTask() );
 767         if (pModule)
 768         {
 769             WCHAR    path[MAX_PATH];
 770
 771             MultiByteToWideChar( CP_ACP, 0, NE_MODULE_NAME(pModule), -1, path, MAX_PATH );
 772             GetLongPathNameW(path, lpFileName, size);
 773         }
 774     }
 775     else
 776     {
 777         LDR_MODULE* pldr;
 778         NTSTATUS    nts;
 779
 780         if (!hModule) hModule = get_exe_module();
 781         nts = LdrFindEntryForAddress( hModule, &pldr );
 782         if (nts == STATUS_SUCCESS) lstrcpynW(lpFileName, pldr->FullDllName.Buffer, size);
 783         else SetLastError( RtlNtStatusToDosError( nts ) );
 784
 785     }
 786     LdrUnlockLoaderLock( 0, magic );
 787
 788     TRACE( "%s\n", debugstr_w(lpFileName) );
 789     return strlenW(lpFileName);
 790 }
 791
 792 /******************************************************************
 793  *              load_library_as_datafile
 794  */
 795 static BOOL load_library_as_datafile( LPCWSTR name, HMODULE* hmod)
 796 {
 797     static const WCHAR dotDLL[] = {'.','d','l','l',0};
 798
 799     WCHAR filenameW[MAX_PATH];
 800     HANDLE hFile = INVALID_HANDLE_VALUE;
 801     HANDLE mapping;
 802
 803     *hmod = 0;
 804
 805     if (SearchPathW( NULL, (LPCWSTR)name, dotDLL, sizeof(filenameW) / sizeof(filenameW[0]),
 806                      filenameW, NULL ))
 807     {
 808         hFile = CreateFileW( filenameW, GENERIC_READ, FILE_SHARE_READ,
 809                              NULL, OPEN_EXISTING, 0, 0 );
 810     }
 811     if (hFile == INVALID_HANDLE_VALUE) return FALSE;
 812     switch (MODULE_GetBinaryType( hFile ))
 813     {
 814     case BINARY_PE_EXE:
 815     case BINARY_PE_DLL:
 816         mapping = CreateFileMappingW( hFile, NULL, PAGE_READONLY, 0, 0, NULL );
 817         if (mapping)
 818         {
 819             *hmod = MapViewOfFile( mapping, FILE_MAP_READ, 0, 0, 0 );
 820             CloseHandle( mapping );
 821         }
 822         break;
 823     default:
 824         break;
 825     }
 826     CloseHandle( hFile );
 827
 828     return *hmod != 0;
 829 }
 830
 831 /******************************************************************
 832  *              LoadLibraryExA          (KERNEL32.@)
 833  *
 834  * The HFILE parameter is not used and marked reserved in the SDK. I can
 835  * only guess that it should force a file to be mapped, but I rather
 836  * ignore the parameter because it would be extremely difficult to
 837  * integrate this with different types of module representations.
 838  *
 839  */
 840 HMODULE WINAPI LoadLibraryExA(LPCSTR libname, HANDLE hfile, DWORD flags)
 841 {
 842     UNICODE_STRING      wstr;
 843     NTSTATUS            nts;
 844     HMODULE             hModule;
 845
 846     if (!libname)
 847     {
 848         SetLastError(ERROR_INVALID_PARAMETER);
 849         return 0;
 850     }
 851     RtlCreateUnicodeStringFromAsciiz( &wstr, libname );
 852
 853     if (flags & LOAD_LIBRARY_AS_DATAFILE)
 854     {
 855         /* The method in load_library_as_datafile allows searching for the
 856          * 'native' libraries only
 857          */
 858         if (load_library_as_datafile( wstr.Buffer, &hModule))
 859         {
 860             RtlFreeUnicodeString( &wstr );
 861             return (HMODULE)((ULONG_PTR)hModule + 1);
 862         }
 863         flags |= DONT_RESOLVE_DLL_REFERENCES; /* Just in case */
 864         /* Fallback to normal behaviour */
 865     }
 866
 867     nts = LdrLoadDll(NULL, flags, &wstr, &hModule);
 868     if (nts != STATUS_SUCCESS)
 869     {
 870         hModule = 0;
 871         SetLastError( RtlNtStatusToDosError( nts ) );
 872     }
 873     RtlFreeUnicodeString( &wstr );
 874
 875     return hModule;
 876 }
 877
 878 /***********************************************************************
 879  *           LoadLibraryExW       (KERNEL32.@)
 880  */
 881 HMODULE WINAPI LoadLibraryExW(LPCWSTR libnameW, HANDLE hfile, DWORD flags)
 882 {
 883     UNICODE_STRING      wstr;
 884     NTSTATUS            nts;
 885     HMODULE             hModule;
 886
 887     if (!libnameW)
 888     {
 889         SetLastError(ERROR_INVALID_PARAMETER);
 890         return 0;
 891     }
 892
 893     if (flags & LOAD_LIBRARY_AS_DATAFILE)
 894     {
 895         /* The method in load_library_as_datafile allows searching for the
 896          * 'native' libraries only
 897          */
 898         if (load_library_as_datafile(libnameW, &hModule))
 899             return (HMODULE)((ULONG_PTR)hModule + 1);
 900         flags |= DONT_RESOLVE_DLL_REFERENCES; /* Just in case */
 901         /* Fallback to normal behaviour */
 902     }
 903
 904     RtlInitUnicodeString( &wstr, libnameW );
 905     nts = LdrLoadDll(NULL, flags, &wstr, &hModule);
 906     if (nts != STATUS_SUCCESS)
 907     {
 908         hModule = 0;
 909         SetLastError( RtlNtStatusToDosError( nts ) );
 910     }
 911     return hModule;
 912 }
 913
 914 /***********************************************************************
 915  *           LoadLibraryA         (KERNEL32.@)
 916  */
 917 HMODULE WINAPI LoadLibraryA(LPCSTR libname)
 918 {
 919     return LoadLibraryExA(libname, 0, 0);
 920 }
 921
 922 /***********************************************************************
 923  *           LoadLibraryW         (KERNEL32.@)
 924  */
 925 HMODULE WINAPI LoadLibraryW(LPCWSTR libnameW)
 926 {
 927     return LoadLibraryExW(libnameW, 0, 0);
 928 }
 929
 930 /***********************************************************************
 931  *           LoadLibrary32        (KERNEL.452)
 932  *           LoadSystemLibrary32  (KERNEL.482)
 933  */
 934 HMODULE WINAPI LoadLibrary32_16( LPCSTR libname )
 935 {
 936     HMODULE hModule;
 937     DWORD count;
 938
 939     ReleaseThunkLock( &count );
 940     hModule = LoadLibraryA( libname );
 941     RestoreThunkLock( count );
 942     return hModule;
 943 }
 944
 945 /***********************************************************************
 946  *           FreeLibrary   (KERNEL32.@)
 947  *           FreeLibrary32 (KERNEL.486)
 948  */
 949 BOOL WINAPI FreeLibrary(HINSTANCE hLibModule)
 950 {
 951     BOOL                retv = FALSE;
 952     NTSTATUS            nts;
 953
 954     if (!hLibModule)
 955     {
 956         SetLastError( ERROR_INVALID_HANDLE );
 957         return FALSE;
 958     }
 959
 960     if ((ULONG_PTR)hLibModule & 1)
 961     {
 962         /* this is a LOAD_LIBRARY_AS_DATAFILE module */
 963         char *ptr = (char *)hLibModule - 1;
 964         UnmapViewOfFile( ptr );
 965         return TRUE;
 966     }
 967
 968     if ((nts = LdrUnloadDll( hLibModule )) == STATUS_SUCCESS) retv = TRUE;
 969     else SetLastError( RtlNtStatusToDosError( nts ) );
 970
 971     return retv;
 972 }
 973
 974 /***********************************************************************
 975  *           FreeLibraryAndExitThread (KERNEL32.@)
 976  */
 977 VOID WINAPI FreeLibraryAndExitThread(HINSTANCE hLibModule, DWORD dwExitCode)
 978 {
 979     FreeLibrary(hLibModule);
 980     ExitThread(dwExitCode);
 981 }
 982
 983 /***********************************************************************
 984  *           PrivateLoadLibrary       (KERNEL32.@)
 985  *
 986  * FIXME: rough guesswork, don't know what "Private" means
 987  */
 988 HINSTANCE16 WINAPI PrivateLoadLibrary(LPCSTR libname)
 989 {
 990     return LoadLibrary16(libname);
 991 }
 992
 993 /***********************************************************************
 994  *           PrivateFreeLibrary       (KERNEL32.@)
 995  *
 996  * FIXME: rough guesswork, don't know what "Private" means
 997  */
 998 void WINAPI PrivateFreeLibrary(HINSTANCE16 handle)
 999 {
1000     FreeLibrary16(handle);
1001 }
1002
1003
1004 /***********************************************************************
1005  *           GetProcAddress16   (KERNEL32.37)
1006  * Get procaddress in 16bit module from win32... (kernel32 undoc. ordinal func)
1007  */
1008 FARPROC16 WINAPI WIN32_GetProcAddress16( HMODULE hModule, LPCSTR name )
1009 {
1010     if (!hModule) {
1011         WARN("hModule may not be 0!\n");
1012         return (FARPROC16)0;
1013     }
1014     if (HIWORD(hModule))
1015     {
1016         WARN("hModule is Win32 handle (%p)\n", hModule );
1017         return (FARPROC16)0;
1018     }
1019     return GetProcAddress16( LOWORD(hModule), name );
1020 }
1021
1022 /***********************************************************************
1023  *           GetProcAddress   (KERNEL.50)
1024  */
1025 FARPROC16 WINAPI GetProcAddress16( HMODULE16 hModule, LPCSTR name )
1026 {
1027     WORD ordinal;
1028     FARPROC16 ret;
1029
1030     if (!hModule) hModule = GetCurrentTask();
1031     hModule = GetExePtr( hModule );
1032
1033     if (HIWORD(name) != 0)
1034     {
1035         ordinal = NE_GetOrdinal( hModule, name );
1036         TRACE("%04x '%s'\n", hModule, name );
1037     }
1038     else
1039     {
1040         ordinal = LOWORD(name);
1041         TRACE("%04x %04x\n", hModule, ordinal );
1042     }
1043     if (!ordinal) return (FARPROC16)0;
1044
1045     ret = NE_GetEntryPoint( hModule, ordinal );
1046
1047     TRACE("returning %08x\n", (UINT)ret );
1048     return ret;
1049 }
1050
1051
1052 /***********************************************************************
1053  *           GetProcAddress             (KERNEL32.@)
1054  */
1055 FARPROC WINAPI GetProcAddress( HMODULE hModule, LPCSTR function )
1056 {
1057     NTSTATUS    nts;
1058     FARPROC     fp;
1059
1060     if (HIWORD(function))
1061     {
1062         ANSI_STRING     str;
1063
1064         RtlInitAnsiString( &str, function );
1065         nts = LdrGetProcedureAddress( hModule, &str, 0, (void**)&fp );
1066     }
1067     else
1068         nts = LdrGetProcedureAddress( hModule, NULL, (DWORD)function, (void**)&fp );
1069     if (nts != STATUS_SUCCESS)
1070     {
1071         SetLastError( RtlNtStatusToDosError( nts ) );
1072         fp = NULL;
1073     }
1074     return fp;
1075 }
1076
1077 /***********************************************************************
1078  *           GetProcAddress32                   (KERNEL.453)
1079  */
1080 FARPROC WINAPI GetProcAddress32_16( HMODULE hModule, LPCSTR function )
1081 {
1082     /* FIXME: we used to disable snoop when returning proc for Win16 subsystem */
1083     return GetProcAddress( hModule, function );
1084 }
1085
1086 /***************************************************************************
1087  *              HasGPHandler                    (KERNEL.338)
1088  */
1089
1090 #include "pshpack1.h"
1091 typedef struct _GPHANDLERDEF
1092 {
1093     WORD selector;
1094     WORD rangeStart;
1095     WORD rangeEnd;
1096     WORD handler;
1097 } GPHANDLERDEF;
1098 #include "poppack.h"
1099
1100 SEGPTR WINAPI HasGPHandler16( SEGPTR address )
1101 {
1102     HMODULE16 hModule;
1103     int gpOrdinal;
1104     SEGPTR gpPtr;
1105     GPHANDLERDEF *gpHandler;
1106
1107     if (    (hModule = FarGetOwner16( SELECTOROF(address) )) != 0
1108          && (gpOrdinal = NE_GetOrdinal( hModule, "__GP" )) != 0
1109          && (gpPtr = (SEGPTR)NE_GetEntryPointEx( hModule, gpOrdinal, FALSE )) != 0
1110          && !IsBadReadPtr16( gpPtr, sizeof(GPHANDLERDEF) )
1111          && (gpHandler = MapSL( gpPtr )) != NULL )
1112     {
1113         while (gpHandler->selector)
1114         {
1115             if (    SELECTOROF(address) == gpHandler->selector
1116                  && OFFSETOF(address)   >= gpHandler->rangeStart
1117                  && OFFSETOF(address)   <  gpHandler->rangeEnd  )
1118                 return MAKESEGPTR( gpHandler->selector, gpHandler->handler );
1119             gpHandler++;
1120         }
1121     }
1122
1123     return 0;
1124 }