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     HANDLE *pdb = (HANDLE *)NtCurrentTeb()->process;
  51     return pdb[0x08 / sizeof(HANDLE)];  /* get dword at offset 0x08 in pdb */
  52 }
  53
  54 /***********************************************************************
  55  *           wait_input_idle
  56  *
  57  * Wrapper to call WaitForInputIdle USER function
  58  */
  59 typedef DWORD (WINAPI *WaitForInputIdle_ptr)( HANDLE hProcess, DWORD dwTimeOut );
  60
  61 static DWORD wait_input_idle( HANDLE process, DWORD timeout )
  62 {
  63     HMODULE mod = GetModuleHandleA( "user32.dll" );
  64     if (mod)
  65     {
  66         WaitForInputIdle_ptr ptr = (WaitForInputIdle_ptr)GetProcAddress( mod, "WaitForInputIdle" );
  67         if (ptr) return ptr( process, timeout );
  68     }
  69     return 0;
  70 }
  71
  72
  73 /****************************************************************************
  74  *              DisableThreadLibraryCalls (KERNEL32.@)
  75  *
  76  * Don't call DllEntryPoint for DLL_THREAD_{ATTACH,DETACH} if set.
  77  */
  78 BOOL WINAPI DisableThreadLibraryCalls( HMODULE hModule )
  79 {
  80     NTSTATUS    nts = LdrDisableThreadCalloutsForDll( hModule );
  81     if (nts == STATUS_SUCCESS) return TRUE;
  82
  83     SetLastError( RtlNtStatusToDosError( nts ) );
  84     return FALSE;
  85 }
  86
  87
  88 /***********************************************************************
  89  *           MODULE_CreateDummyModule
  90  *
  91  * Create a dummy NE module for Win32 or Winelib.
  92  */
  93 HMODULE16 MODULE_CreateDummyModule( LPCSTR filename, HMODULE module32 )
  94 {
  95     HMODULE16 hModule;
  96     NE_MODULE *pModule;
  97     SEGTABLEENTRY *pSegment;
  98     char *pStr,*s;
  99     unsigned int len;
 100     const char* basename;
 101     OFSTRUCT *ofs;
 102     int of_size, size;
 103
 104     /* Extract base filename */
 105     basename = strrchr(filename, '\\');
 106     if (!basename) basename = filename;
 107     else basename++;
 108     len = strlen(basename);
 109     if ((s = strchr(basename, '.'))) len = s - basename;
 110
 111     /* Allocate module */
 112     of_size = sizeof(OFSTRUCT) - sizeof(ofs->szPathName)
 113                     + strlen(filename) + 1;
 114     size = sizeof(NE_MODULE) +
 115                  /* loaded file info */
 116                  ((of_size + 3) & ~3) +
 117                  /* segment table: DS,CS */
 118                  2 * sizeof(SEGTABLEENTRY) +
 119                  /* name table */
 120                  len + 2 +
 121                  /* several empty tables */
 122                  8;
 123
 124     hModule = GlobalAlloc16( GMEM_MOVEABLE | GMEM_ZEROINIT, size );
 125     if (!hModule) return (HMODULE16)11;  /* invalid exe */
 126
 127     FarSetOwner16( hModule, hModule );
 128     pModule = (NE_MODULE *)GlobalLock16( hModule );
 129
 130     /* Set all used entries */
 131     pModule->magic            = IMAGE_OS2_SIGNATURE;
 132     pModule->count            = 1;
 133     pModule->next             = 0;
 134     pModule->flags            = 0;
 135     pModule->dgroup           = 0;
 136     pModule->ss               = 1;
 137     pModule->cs               = 2;
 138     pModule->heap_size        = 0;
 139     pModule->stack_size       = 0;
 140     pModule->seg_count        = 2;
 141     pModule->modref_count     = 0;
 142     pModule->nrname_size      = 0;
 143     pModule->fileinfo         = sizeof(NE_MODULE);
 144     pModule->os_flags         = NE_OSFLAGS_WINDOWS;
 145     pModule->self             = hModule;
 146     pModule->module32         = module32;
 147
 148     /* Set version and flags */
 149     if (module32)
 150     {
 151         IMAGE_NT_HEADERS *nt = RtlImageNtHeader( module32 );
 152         pModule->expected_version = ((nt->OptionalHeader.MajorSubsystemVersion & 0xff) << 8 ) |
 153                                      (nt->OptionalHeader.MinorSubsystemVersion & 0xff);
 154         pModule->flags |= NE_FFLAGS_WIN32;
 155         if (nt->FileHeader.Characteristics & IMAGE_FILE_DLL)
 156             pModule->flags |= NE_FFLAGS_LIBMODULE | NE_FFLAGS_SINGLEDATA;
 157     }
 158
 159     /* Set loaded file information */
 160     ofs = (OFSTRUCT *)(pModule + 1);
 161     memset( ofs, 0, of_size );
 162     ofs->cBytes = of_size < 256 ? of_size : 255;   /* FIXME */
 163     strcpy( ofs->szPathName, filename );
 164
 165     pSegment = (SEGTABLEENTRY*)((char*)(pModule + 1) + ((of_size + 3) & ~3));
 166     pModule->seg_table = (int)pSegment - (int)pModule;
 167     /* Data segment */
 168     pSegment->size    = 0;
 169     pSegment->flags   = NE_SEGFLAGS_DATA;
 170     pSegment->minsize = 0x1000;
 171     pSegment++;
 172     /* Code segment */
 173     pSegment->flags   = 0;
 174     pSegment++;
 175
 176     /* Module name */
 177     pStr = (char *)pSegment;
 178     pModule->name_table = (int)pStr - (int)pModule;
 179     assert(len<256);
 180     *pStr = len;
 181     lstrcpynA( pStr+1, basename, len+1 );
 182     pStr += len+2;
 183
 184     /* All tables zero terminated */
 185     pModule->res_table = pModule->import_table = pModule->entry_table =
 186                 (int)pStr - (int)pModule;
 187
 188     NE_RegisterModule( pModule );
 189     return hModule;
 190 }
 191
 192
 193 /* Check whether a file is an OS/2 or a very old Windows executable
 194  * by testing on import of KERNEL.
 195  *
 196  * FIXME: is reading the module imports the only way of discerning
 197  *        old Windows binaries from OS/2 ones ? At least it seems so...
 198  */
 199 static enum binary_type MODULE_Decide_OS2_OldWin(HANDLE hfile, const IMAGE_DOS_HEADER *mz,
 200                                                  const IMAGE_OS2_HEADER *ne)
 201 {
 202     DWORD currpos = SetFilePointer( hfile, 0, NULL, SEEK_CUR);
 203     enum binary_type ret = BINARY_OS216;
 204     LPWORD modtab = NULL;
 205     LPSTR nametab = NULL;
 206     DWORD len;
 207     int i;
 208
 209     /* read modref table */
 210     if ( (SetFilePointer( hfile, mz->e_lfanew + ne->ne_modtab, NULL, SEEK_SET ) == -1)
 211       || (!(modtab = HeapAlloc( GetProcessHeap(), 0, ne->ne_cmod*sizeof(WORD))))
 212       || (!(ReadFile(hfile, modtab, ne->ne_cmod*sizeof(WORD), &len, NULL)))
 213       || (len != ne->ne_cmod*sizeof(WORD)) )
 214         goto broken;
 215
 216     /* read imported names table */
 217     if ( (SetFilePointer( hfile, mz->e_lfanew + ne->ne_imptab, NULL, SEEK_SET ) == -1)
 218       || (!(nametab = HeapAlloc( GetProcessHeap(), 0, ne->ne_enttab - ne->ne_imptab)))
 219       || (!(ReadFile(hfile, nametab, ne->ne_enttab - ne->ne_imptab, &len, NULL)))
 220       || (len != ne->ne_enttab - ne->ne_imptab) )
 221         goto broken;
 222
 223     for (i=0; i < ne->ne_cmod; i++)
 224     {
 225         LPSTR module = &nametab[modtab[i]];
 226         TRACE("modref: %.*s\n", module[0], &module[1]);
 227         if (!(strncmp(&module[1], "KERNEL", module[0])))
 228         { /* very old Windows file */
 229             MESSAGE("This seems to be a very old (pre-3.0) Windows executable. Expect crashes, especially if this is a real-mode binary !\n");
 230             ret = BINARY_WIN16;
 231             goto good;
 232         }
 233     }
 234
 235 broken:
 236     ERR("Hmm, an error occurred. Is this binary file broken ?\n");
 237
 238 good:
 239     HeapFree( GetProcessHeap(), 0, modtab);
 240     HeapFree( GetProcessHeap(), 0, nametab);
 241     SetFilePointer( hfile, currpos, NULL, SEEK_SET); /* restore filepos */
 242     return ret;
 243 }
 244
 245 /***********************************************************************
 246  *           MODULE_GetBinaryType
 247  */
 248 enum binary_type MODULE_GetBinaryType( HANDLE hfile )
 249 {
 250     union
 251     {
 252         struct
 253         {
 254             unsigned char magic[4];
 255             unsigned char ignored[12];
 256             unsigned short type;
 257         } elf;
 258         IMAGE_DOS_HEADER mz;
 259     } header;
 260
 261     char magic[4];
 262     DWORD len;
 263
 264     /* Seek to the start of the file and read the header information. */
 265     if (SetFilePointer( hfile, 0, NULL, SEEK_SET ) == -1)
 266         return BINARY_UNKNOWN;
 267     if (!ReadFile( hfile, &header, sizeof(header), &len, NULL ) || len != sizeof(header))
 268         return BINARY_UNKNOWN;
 269
 270     if (!memcmp( header.elf.magic, "\177ELF", 4 ))
 271     {
 272         /* FIXME: we don't bother to check byte order, architecture, etc. */
 273         switch(header.elf.type)
 274         {
 275         case 2: return BINARY_UNIX_EXE;
 276         case 3: return BINARY_UNIX_LIB;
 277         }
 278         return BINARY_UNKNOWN;
 279     }
 280
 281     /* Not ELF, try DOS */
 282
 283     if (header.mz.e_magic == IMAGE_DOS_SIGNATURE)
 284     {
 285         /* We do have a DOS image so we will now try to seek into
 286          * the file by the amount indicated by the field
 287          * "Offset to extended header" and read in the
 288          * "magic" field information at that location.
 289          * This will tell us if there is more header information
 290          * to read or not.
 291          */
 292         /* But before we do we will make sure that header
 293          * structure encompasses the "Offset to extended header"
 294          * field.
 295          */
 296         if ((header.mz.e_cparhdr << 4) < sizeof(IMAGE_DOS_HEADER))
 297             return BINARY_DOS;
 298         if (header.mz.e_crlc && (header.mz.e_lfarlc < sizeof(IMAGE_DOS_HEADER)))
 299             return BINARY_DOS;
 300         if (header.mz.e_lfanew < sizeof(IMAGE_DOS_HEADER))
 301             return BINARY_DOS;
 302         if (SetFilePointer( hfile, header.mz.e_lfanew, NULL, SEEK_SET ) == -1)
 303             return BINARY_DOS;
 304         if (!ReadFile( hfile, magic, sizeof(magic), &len, NULL ) || len != sizeof(magic))
 305             return BINARY_DOS;
 306
 307         /* Reading the magic field succeeded so
 308          * we will try to determine what type it is.
 309          */
 310         if (!memcmp( magic, "PE\0\0", 4 ))
 311         {
 312             IMAGE_FILE_HEADER FileHeader;
 313
 314             if (ReadFile( hfile, &FileHeader, sizeof(FileHeader), &len, NULL ) && len == sizeof(FileHeader))
 315             {
 316                 if (FileHeader.Characteristics & IMAGE_FILE_DLL) return BINARY_PE_DLL;
 317                 return BINARY_PE_EXE;
 318             }
 319             return BINARY_DOS;
 320         }
 321
 322         if (!memcmp( magic, "NE", 2 ))
 323         {
 324             /* This is a Windows executable (NE) header.  This can
 325              * mean either a 16-bit OS/2 or a 16-bit Windows or even a
 326              * DOS program (running under a DOS extender).  To decide
 327              * which, we'll have to read the NE header.
 328              */
 329             IMAGE_OS2_HEADER ne;
 330             if (    SetFilePointer( hfile, header.mz.e_lfanew, NULL, SEEK_SET ) != -1
 331                     && ReadFile( hfile, &ne, sizeof(ne), &len, NULL )
 332                     && len == sizeof(ne) )
 333             {
 334                 switch ( ne.ne_exetyp )
 335                 {
 336                 case 2:  return BINARY_WIN16;
 337                 case 5:  return BINARY_DOS;
 338                 default: return MODULE_Decide_OS2_OldWin(hfile, &header.mz, &ne);
 339                 }
 340             }
 341             /* Couldn't read header, so abort. */
 342             return BINARY_DOS;
 343         }
 344
 345         /* Unknown extended header, but this file is nonetheless DOS-executable. */
 346         return BINARY_DOS;
 347     }
 348
 349     return BINARY_UNKNOWN;
 350 }
 351
 352 /***********************************************************************
 353  *             GetBinaryTypeA                     [KERNEL32.@]
 354  *             GetBinaryType                      [KERNEL32.@]
 355  *
 356  * The GetBinaryType function determines whether a file is executable
 357  * or not and if it is it returns what type of executable it is.
 358  * The type of executable is a property that determines in which
 359  * subsystem an executable file runs under.
 360  *
 361  * Binary types returned:
 362  * SCS_32BIT_BINARY: A Win32 based application
 363  * SCS_DOS_BINARY: An MS-Dos based application
 364  * SCS_WOW_BINARY: A Win16 based application
 365  * SCS_PIF_BINARY: A PIF file that executes an MS-Dos based app
 366  * SCS_POSIX_BINARY: A POSIX based application ( Not implemented )
 367  * SCS_OS216_BINARY: A 16bit OS/2 based application
 368  *
 369  * Returns TRUE if the file is an executable in which case
 370  * the value pointed by lpBinaryType is set.
 371  * Returns FALSE if the file is not an executable or if the function fails.
 372  *
 373  * To do so it opens the file and reads in the header information
 374  * if the extended header information is not present it will
 375  * assume that the file is a DOS executable.
 376  * If the extended header information is present it will
 377  * determine if the file is a 16 or 32 bit Windows executable
 378  * by check the flags in the header.
 379  *
 380  * Note that .COM and .PIF files are only recognized by their
 381  * file name extension; but Windows does it the same way ...
 382  */
 383 BOOL WINAPI GetBinaryTypeA( LPCSTR lpApplicationName, LPDWORD lpBinaryType )
 384 {
 385     BOOL ret = FALSE;
 386     HANDLE hfile;
 387     char *ptr;
 388
 389     TRACE_(win32)("%s\n", lpApplicationName );
 390
 391     /* Sanity check.
 392      */
 393     if ( lpApplicationName == NULL || lpBinaryType == NULL )
 394         return FALSE;
 395
 396     /* Open the file indicated by lpApplicationName for reading.
 397      */
 398     hfile = CreateFileA( lpApplicationName, GENERIC_READ, FILE_SHARE_READ,
 399                          NULL, OPEN_EXISTING, 0, 0 );
 400     if ( hfile == INVALID_HANDLE_VALUE )
 401         return FALSE;
 402
 403     /* Check binary type
 404      */
 405     switch(MODULE_GetBinaryType( hfile ))
 406     {
 407     case BINARY_UNKNOWN:
 408         /* try to determine from file name */
 409         ptr = strrchr( lpApplicationName, '.' );
 410         if (!ptr) break;
 411         if (!FILE_strcasecmp( ptr, ".COM" ))
 412         {
 413             *lpBinaryType = SCS_DOS_BINARY;
 414             ret = TRUE;
 415         }
 416         else if (!FILE_strcasecmp( ptr, ".PIF" ))
 417         {
 418             *lpBinaryType = SCS_PIF_BINARY;
 419             ret = TRUE;
 420         }
 421         break;
 422     case BINARY_PE_EXE:
 423     case BINARY_PE_DLL:
 424         *lpBinaryType = SCS_32BIT_BINARY;
 425         ret = TRUE;
 426         break;
 427     case BINARY_WIN16:
 428         *lpBinaryType = SCS_WOW_BINARY;
 429         ret = TRUE;
 430         break;
 431     case BINARY_OS216:
 432         *lpBinaryType = SCS_OS216_BINARY;
 433         ret = TRUE;
 434         break;
 435     case BINARY_DOS:
 436         *lpBinaryType = SCS_DOS_BINARY;
 437         ret = TRUE;
 438         break;
 439     case BINARY_UNIX_EXE:
 440     case BINARY_UNIX_LIB:
 441         ret = FALSE;
 442         break;
 443     }
 444
 445     CloseHandle( hfile );
 446     return ret;
 447 }
 448
 449 /***********************************************************************
 450  *             GetBinaryTypeW                      [KERNEL32.@]
 451  */
 452 BOOL WINAPI GetBinaryTypeW( LPCWSTR lpApplicationName, LPDWORD lpBinaryType )
 453 {
 454     BOOL ret = FALSE;
 455     LPSTR strNew = NULL;
 456
 457     TRACE_(win32)("%s\n", debugstr_w(lpApplicationName) );
 458
 459     /* Sanity check.
 460      */
 461     if ( lpApplicationName == NULL || lpBinaryType == NULL )
 462         return FALSE;
 463
 464     /* Convert the wide string to a ascii string.
 465      */
 466     strNew = HEAP_strdupWtoA( GetProcessHeap(), 0, lpApplicationName );
 467
 468     if ( strNew != NULL )
 469     {
 470         ret = GetBinaryTypeA( strNew, lpBinaryType );
 471
 472         /* Free the allocated string.
 473          */
 474         HeapFree( GetProcessHeap(), 0, strNew );
 475     }
 476
 477     return ret;
 478 }
 479
 480
 481 /***********************************************************************
 482  *           WinExec     (KERNEL.166)
 483  */
 484 HINSTANCE16 WINAPI WinExec16( LPCSTR lpCmdLine, UINT16 nCmdShow )
 485 {
 486     LPCSTR p, args = NULL;
 487     LPCSTR name_beg, name_end;
 488     LPSTR name, cmdline;
 489     int arglen;
 490     HINSTANCE16 ret;
 491     char buffer[MAX_PATH];
 492
 493     if (*lpCmdLine == '"') /* has to be only one and only at beginning ! */
 494     {
 495       name_beg = lpCmdLine+1;
 496       p = strchr ( lpCmdLine+1, '"' );
 497       if (p)
 498       {
 499           name_end = p;
 500           args = strchr ( p, ' ' );
 501       }
 502       else /* yes, even valid with trailing '"' missing */
 503           name_end = lpCmdLine+strlen(lpCmdLine);
 504     }
 505     else
 506     {
 507       name_beg = lpCmdLine;
 508       args = strchr( lpCmdLine, ' ' );
 509       name_end = args ? args : lpCmdLine+strlen(lpCmdLine);
 510     }
 511
 512     if ((name_beg == lpCmdLine) && (!args))
 513     { /* just use the original cmdline string as file name */
 514         name = (LPSTR)lpCmdLine;
 515     }
 516     else
 517     {
 518         if (!(name = HeapAlloc( GetProcessHeap(), 0, name_end - name_beg + 1 )))
 519             return ERROR_NOT_ENOUGH_MEMORY;
 520         memcpy( name, name_beg, name_end - name_beg );
 521         name[name_end - name_beg] = '\0';
 522     }
 523
 524     if (args)
 525     {
 526         args++;
 527         arglen = strlen(args);
 528         cmdline = HeapAlloc( GetProcessHeap(), 0, 2 + arglen );
 529         cmdline[0] = (BYTE)arglen;
 530         strcpy( cmdline + 1, args );
 531     }
 532     else
 533     {
 534         cmdline = HeapAlloc( GetProcessHeap(), 0, 2 );
 535         cmdline[0] = cmdline[1] = 0;
 536     }
 537
 538     TRACE("name: '%s', cmdline: '%.*s'\n", name, cmdline[0], &cmdline[1]);
 539
 540     if (SearchPathA( NULL, name, ".exe", sizeof(buffer), buffer, NULL ))
 541     {
 542         LOADPARAMS16 params;
 543         WORD showCmd[2];
 544         showCmd[0] = 2;
 545         showCmd[1] = nCmdShow;
 546
 547         params.hEnvironment = 0;
 548         params.cmdLine = MapLS( cmdline );
 549         params.showCmd = MapLS( showCmd );
 550         params.reserved = 0;
 551
 552         ret = LoadModule16( buffer, &params );
 553         UnMapLS( params.cmdLine );
 554         UnMapLS( params.showCmd );
 555     }
 556     else ret = GetLastError();
 557
 558     HeapFree( GetProcessHeap(), 0, cmdline );
 559     if (name != lpCmdLine) HeapFree( GetProcessHeap(), 0, name );
 560
 561     if (ret == 21)  /* 32-bit module */
 562     {
 563         DWORD count;
 564         ReleaseThunkLock( &count );
 565         ret = LOWORD( WinExec( lpCmdLine, nCmdShow ) );
 566         RestoreThunkLock( count );
 567     }
 568     return ret;
 569 }
 570
 571 /***********************************************************************
 572  *           WinExec   (KERNEL32.@)
 573  */
 574 UINT WINAPI WinExec( LPCSTR lpCmdLine, UINT nCmdShow )
 575 {
 576     PROCESS_INFORMATION info;
 577     STARTUPINFOA startup;
 578     char *cmdline;
 579     UINT ret;
 580
 581     memset( &startup, 0, sizeof(startup) );
 582     startup.cb = sizeof(startup);
 583     startup.dwFlags = STARTF_USESHOWWINDOW;
 584     startup.wShowWindow = nCmdShow;
 585
 586     /* cmdline needs to be writeable for CreateProcess */
 587     if (!(cmdline = HeapAlloc( GetProcessHeap(), 0, strlen(lpCmdLine)+1 ))) return 0;
 588     strcpy( cmdline, lpCmdLine );
 589
 590     if (CreateProcessA( NULL, cmdline, NULL, NULL, FALSE,
 591                         0, NULL, NULL, &startup, &info ))
 592     {
 593         /* Give 30 seconds to the app to come up */
 594         if (wait_input_idle( info.hProcess, 30000 ) == 0xFFFFFFFF)
 595             WARN("WaitForInputIdle failed: Error %ld\n", GetLastError() );
 596         ret = 33;
 597         /* Close off the handles */
 598         CloseHandle( info.hThread );
 599         CloseHandle( info.hProcess );
 600     }
 601     else if ((ret = GetLastError()) >= 32)
 602     {
 603         FIXME("Strange error set by CreateProcess: %d\n", ret );
 604         ret = 11;
 605     }
 606     HeapFree( GetProcessHeap(), 0, cmdline );
 607     return ret;
 608 }
 609
 610 /**********************************************************************
 611  *          LoadModule    (KERNEL32.@)
 612  */
 613 HINSTANCE WINAPI LoadModule( LPCSTR name, LPVOID paramBlock )
 614 {
 615     LOADPARAMS *params = (LOADPARAMS *)paramBlock;
 616     PROCESS_INFORMATION info;
 617     STARTUPINFOA startup;
 618     HINSTANCE hInstance;
 619     LPSTR cmdline, p;
 620     char filename[MAX_PATH];
 621     BYTE len;
 622
 623     if (!name) return (HINSTANCE)ERROR_FILE_NOT_FOUND;
 624
 625     if (!SearchPathA( NULL, name, ".exe", sizeof(filename), filename, NULL ) &&
 626         !SearchPathA( NULL, name, NULL, sizeof(filename), filename, NULL ))
 627         return (HINSTANCE)GetLastError();
 628
 629     len = (BYTE)params->lpCmdLine[0];
 630     if (!(cmdline = HeapAlloc( GetProcessHeap(), 0, strlen(filename) + len + 2 )))
 631         return (HINSTANCE)ERROR_NOT_ENOUGH_MEMORY;
 632
 633     strcpy( cmdline, filename );
 634     p = cmdline + strlen(cmdline);
 635     *p++ = ' ';
 636     memcpy( p, params->lpCmdLine + 1, len );
 637     p[len] = 0;
 638
 639     memset( &startup, 0, sizeof(startup) );
 640     startup.cb = sizeof(startup);
 641     if (params->lpCmdShow)
 642     {
 643         startup.dwFlags = STARTF_USESHOWWINDOW;
 644         startup.wShowWindow = params->lpCmdShow[1];
 645     }
 646
 647     if (CreateProcessA( filename, cmdline, NULL, NULL, FALSE, 0,
 648                         params->lpEnvAddress, NULL, &startup, &info ))
 649     {
 650         /* Give 30 seconds to the app to come up */
 651         if (wait_input_idle( info.hProcess, 30000 ) ==  0xFFFFFFFF )
 652             WARN("WaitForInputIdle failed: Error %ld\n", GetLastError() );
 653         hInstance = (HINSTANCE)33;
 654         /* Close off the handles */
 655         CloseHandle( info.hThread );
 656         CloseHandle( info.hProcess );
 657     }
 658     else if ((hInstance = (HINSTANCE)GetLastError()) >= (HINSTANCE)32)
 659     {
 660         FIXME("Strange error set by CreateProcess: %p\n", hInstance );
 661         hInstance = (HINSTANCE)11;
 662     }
 663
 664     HeapFree( GetProcessHeap(), 0, cmdline );
 665     return hInstance;
 666 }
 667
 668
 669 /***********************************************************************
 670  *              GetModuleHandleA         (KERNEL32.@)
 671  *              GetModuleHandle32        (KERNEL.488)
 672  */
 673 HMODULE WINAPI GetModuleHandleA(LPCSTR module)
 674 {
 675     NTSTATUS            nts;
 676     HMODULE             ret;
 677     UNICODE_STRING      wstr;
 678
 679     if (!module) return get_exe_module();
 680
 681     RtlCreateUnicodeStringFromAsciiz(&wstr, module);
 682     nts = LdrGetDllHandle(0, 0, &wstr, &ret);
 683     RtlFreeUnicodeString( &wstr );
 684     if (nts != STATUS_SUCCESS)
 685     {
 686         ret = 0;
 687         SetLastError( RtlNtStatusToDosError( nts ) );
 688     }
 689     return ret;
 690 }
 691
 692 /***********************************************************************
 693  *              GetModuleHandleW (KERNEL32.@)
 694  */
 695 HMODULE WINAPI GetModuleHandleW(LPCWSTR module)
 696 {
 697     NTSTATUS            nts;
 698     HMODULE             ret;
 699     UNICODE_STRING      wstr;
 700
 701     if (!module) return get_exe_module();
 702
 703     RtlInitUnicodeString( &wstr, module );
 704     nts = LdrGetDllHandle( 0, 0, &wstr, &ret);
 705     if (nts != STATUS_SUCCESS)
 706     {
 707         SetLastError( RtlNtStatusToDosError( nts ) );
 708         ret = 0;
 709     }
 710     return ret;
 711 }
 712
 713
 714 /***********************************************************************
 715  *              GetModuleFileNameA      (KERNEL32.@)
 716  *              GetModuleFileName32     (KERNEL.487)
 717  *
 718  * GetModuleFileNameA seems to *always* return the long path;
 719  * it's only GetModuleFileName16 that decides between short/long path
 720  * by checking if exe version >= 4.0.
 721  * (SDK docu doesn't mention this)
 722  */
 723 DWORD WINAPI GetModuleFileNameA(
 724         HMODULE hModule,        /* [in] module handle (32bit) */
 725         LPSTR lpFileName,       /* [out] filenamebuffer */
 726         DWORD size )            /* [in] size of filenamebuffer */
 727 {
 728     LPWSTR filenameW = HeapAlloc( GetProcessHeap(), 0, size * sizeof(WCHAR) );
 729
 730     if (!filenameW)
 731     {
 732         SetLastError( ERROR_NOT_ENOUGH_MEMORY );
 733         return 0;
 734     }
 735     GetModuleFileNameW( hModule, filenameW, size );
 736     WideCharToMultiByte( CP_ACP, 0, filenameW, -1, lpFileName, size, NULL, NULL );
 737     HeapFree( GetProcessHeap(), 0, filenameW );
 738     return strlen( lpFileName );
 739 }
 740
 741 /***********************************************************************
 742  *              GetModuleFileNameW      (KERNEL32.@)
 743  */
 744 DWORD WINAPI GetModuleFileNameW( HMODULE hModule, LPWSTR lpFileName, DWORD size )
 745 {
 746     ULONG magic;
 747
 748     lpFileName[0] = 0;
 749
 750     LdrLockLoaderLock( 0, NULL, &magic );
 751     if (!hModule && !(NtCurrentTeb()->tibflags & TEBF_WIN32))
 752     {
 753         /* 16-bit task - get current NE module name */
 754         NE_MODULE *pModule = NE_GetPtr( GetCurrentTask() );
 755         if (pModule)
 756         {
 757             WCHAR    path[MAX_PATH];
 758
 759             MultiByteToWideChar( CP_ACP, 0, NE_MODULE_NAME(pModule), -1, path, MAX_PATH );
 760             GetLongPathNameW(path, lpFileName, size);
 761         }
 762     }
 763     else
 764     {
 765         LDR_MODULE* pldr;
 766         NTSTATUS    nts;
 767
 768         if (!hModule) hModule = get_exe_module();
 769         nts = LdrFindEntryForAddress( hModule, &pldr );
 770         if (nts == STATUS_SUCCESS) lstrcpynW(lpFileName, pldr->FullDllName.Buffer, size);
 771         else SetLastError( RtlNtStatusToDosError( nts ) );
 772
 773     }
 774     LdrUnlockLoaderLock( 0, magic );
 775
 776     TRACE( "%s\n", debugstr_w(lpFileName) );
 777     return strlenW(lpFileName);
 778 }
 779
 780 /******************************************************************
 781  *              load_library_as_datafile
 782  */
 783 static BOOL load_library_as_datafile( LPCWSTR name, HMODULE* hmod)
 784 {
 785     static const WCHAR dotDLL[] = {'.','d','l','l',0};
 786
 787     WCHAR filenameW[MAX_PATH];
 788     HANDLE hFile = INVALID_HANDLE_VALUE;
 789     HANDLE mapping;
 790
 791     *hmod = 0;
 792
 793     if (SearchPathW( NULL, (LPCWSTR)name, dotDLL, sizeof(filenameW) / sizeof(filenameW[0]),
 794                      filenameW, NULL ))
 795     {
 796         hFile = CreateFileW( filenameW, GENERIC_READ, FILE_SHARE_READ,
 797                              NULL, OPEN_EXISTING, 0, 0 );
 798     }
 799     if (hFile == INVALID_HANDLE_VALUE) return FALSE;
 800     switch (MODULE_GetBinaryType( hFile ))
 801     {
 802     case BINARY_PE_EXE:
 803     case BINARY_PE_DLL:
 804         mapping = CreateFileMappingW( hFile, NULL, PAGE_READONLY, 0, 0, NULL );
 805         if (mapping)
 806         {
 807             *hmod = MapViewOfFile( mapping, FILE_MAP_READ, 0, 0, 0 );
 808             CloseHandle( mapping );
 809         }
 810         break;
 811     default:
 812         break;
 813     }
 814     CloseHandle( hFile );
 815
 816     return *hmod != 0;
 817 }
 818
 819 /******************************************************************
 820  *              LoadLibraryExA          (KERNEL32.@)
 821  *
 822  * The HFILE parameter is not used and marked reserved in the SDK. I can
 823  * only guess that it should force a file to be mapped, but I rather
 824  * ignore the parameter because it would be extremely difficult to
 825  * integrate this with different types of module representations.
 826  *
 827  */
 828 HMODULE WINAPI LoadLibraryExA(LPCSTR libname, HANDLE hfile, DWORD flags)
 829 {
 830     UNICODE_STRING      wstr;
 831     NTSTATUS            nts;
 832     HMODULE             hModule;
 833
 834     if (!libname)
 835     {
 836         SetLastError(ERROR_INVALID_PARAMETER);
 837         return 0;
 838     }
 839     RtlCreateUnicodeStringFromAsciiz( &wstr, libname );
 840
 841     if (flags & LOAD_LIBRARY_AS_DATAFILE)
 842     {
 843         /* The method in load_library_as_datafile allows searching for the
 844          * 'native' libraries only
 845          */
 846         if (load_library_as_datafile( wstr.Buffer, &hModule))
 847         {
 848             RtlFreeUnicodeString( &wstr );
 849             return (HMODULE)((ULONG_PTR)hModule + 1);
 850         }
 851         flags |= DONT_RESOLVE_DLL_REFERENCES; /* Just in case */
 852         /* Fallback to normal behaviour */
 853     }
 854
 855     nts = LdrLoadDll(NULL, flags, &wstr, &hModule);
 856     if (nts != STATUS_SUCCESS)
 857     {
 858         hModule = 0;
 859         SetLastError( RtlNtStatusToDosError( nts ) );
 860     }
 861     RtlFreeUnicodeString( &wstr );
 862
 863     return hModule;
 864 }
 865
 866 /***********************************************************************
 867  *           LoadLibraryExW       (KERNEL32.@)
 868  */
 869 HMODULE WINAPI LoadLibraryExW(LPCWSTR libnameW, HANDLE hfile, DWORD flags)
 870 {
 871     UNICODE_STRING      wstr;
 872     NTSTATUS            nts;
 873     HMODULE             hModule;
 874
 875     if (!libnameW)
 876     {
 877         SetLastError(ERROR_INVALID_PARAMETER);
 878         return 0;
 879     }
 880
 881     if (flags & LOAD_LIBRARY_AS_DATAFILE)
 882     {
 883         /* The method in load_library_as_datafile allows searching for the
 884          * 'native' libraries only
 885          */
 886         if (load_library_as_datafile(libnameW, &hModule))
 887             return (HMODULE)((ULONG_PTR)hModule + 1);
 888         flags |= DONT_RESOLVE_DLL_REFERENCES; /* Just in case */
 889         /* Fallback to normal behaviour */
 890     }
 891
 892     RtlInitUnicodeString( &wstr, libnameW );
 893     nts = LdrLoadDll(NULL, flags, &wstr, &hModule);
 894     if (nts != STATUS_SUCCESS)
 895     {
 896         hModule = 0;
 897         SetLastError( RtlNtStatusToDosError( nts ) );
 898     }
 899     return hModule;
 900 }
 901
 902 /***********************************************************************
 903  *           LoadLibraryA         (KERNEL32.@)
 904  */
 905 HMODULE WINAPI LoadLibraryA(LPCSTR libname)
 906 {
 907     return LoadLibraryExA(libname, 0, 0);
 908 }
 909
 910 /***********************************************************************
 911  *           LoadLibraryW         (KERNEL32.@)
 912  */
 913 HMODULE WINAPI LoadLibraryW(LPCWSTR libnameW)
 914 {
 915     return LoadLibraryExW(libnameW, 0, 0);
 916 }
 917
 918 /***********************************************************************
 919  *           LoadLibrary32        (KERNEL.452)
 920  *           LoadSystemLibrary32  (KERNEL.482)
 921  */
 922 HMODULE WINAPI LoadLibrary32_16( LPCSTR libname )
 923 {
 924     HMODULE hModule;
 925     DWORD count;
 926
 927     ReleaseThunkLock( &count );
 928     hModule = LoadLibraryA( libname );
 929     RestoreThunkLock( count );
 930     return hModule;
 931 }
 932
 933 /***********************************************************************
 934  *           FreeLibrary   (KERNEL32.@)
 935  *           FreeLibrary32 (KERNEL.486)
 936  */
 937 BOOL WINAPI FreeLibrary(HINSTANCE hLibModule)
 938 {
 939     BOOL                retv = FALSE;
 940     NTSTATUS            nts;
 941
 942     if (!hLibModule)
 943     {
 944         SetLastError( ERROR_INVALID_HANDLE );
 945         return FALSE;
 946     }
 947
 948     if ((ULONG_PTR)hLibModule & 1)
 949     {
 950         /* this is a LOAD_LIBRARY_AS_DATAFILE module */
 951         char *ptr = (char *)hLibModule - 1;
 952         UnmapViewOfFile( ptr );
 953         return TRUE;
 954     }
 955
 956     if ((nts = LdrUnloadDll( hLibModule )) == STATUS_SUCCESS) retv = TRUE;
 957     else SetLastError( RtlNtStatusToDosError( nts ) );
 958
 959     return retv;
 960 }
 961
 962 /***********************************************************************
 963  *           FreeLibraryAndExitThread (KERNEL32.@)
 964  */
 965 VOID WINAPI FreeLibraryAndExitThread(HINSTANCE hLibModule, DWORD dwExitCode)
 966 {
 967     FreeLibrary(hLibModule);
 968     ExitThread(dwExitCode);
 969 }
 970
 971 /***********************************************************************
 972  *           PrivateLoadLibrary       (KERNEL32.@)
 973  *
 974  * FIXME: rough guesswork, don't know what "Private" means
 975  */
 976 HINSTANCE16 WINAPI PrivateLoadLibrary(LPCSTR libname)
 977 {
 978     return LoadLibrary16(libname);
 979 }
 980
 981 /***********************************************************************
 982  *           PrivateFreeLibrary       (KERNEL32.@)
 983  *
 984  * FIXME: rough guesswork, don't know what "Private" means
 985  */
 986 void WINAPI PrivateFreeLibrary(HINSTANCE16 handle)
 987 {
 988     FreeLibrary16(handle);
 989 }
 990
 991
 992 /***********************************************************************
 993  *           GetProcAddress16   (KERNEL32.37)
 994  * Get procaddress in 16bit module from win32... (kernel32 undoc. ordinal func)
 995  */
 996 FARPROC16 WINAPI WIN32_GetProcAddress16( HMODULE hModule, LPCSTR name )
 997 {
 998     if (!hModule) {
 999         WARN("hModule may not be 0!\n");
1000         return (FARPROC16)0;
1001     }
1002     if (HIWORD(hModule))
1003     {
1004         WARN("hModule is Win32 handle (%p)\n", hModule );
1005         return (FARPROC16)0;
1006     }
1007     return GetProcAddress16( LOWORD(hModule), name );
1008 }
1009
1010 /***********************************************************************
1011  *           GetProcAddress   (KERNEL.50)
1012  */
1013 FARPROC16 WINAPI GetProcAddress16( HMODULE16 hModule, LPCSTR name )
1014 {
1015     WORD ordinal;
1016     FARPROC16 ret;
1017
1018     if (!hModule) hModule = GetCurrentTask();
1019     hModule = GetExePtr( hModule );
1020
1021     if (HIWORD(name) != 0)
1022     {
1023         ordinal = NE_GetOrdinal( hModule, name );
1024         TRACE("%04x '%s'\n", hModule, name );
1025     }
1026     else
1027     {
1028         ordinal = LOWORD(name);
1029         TRACE("%04x %04x\n", hModule, ordinal );
1030     }
1031     if (!ordinal) return (FARPROC16)0;
1032
1033     ret = NE_GetEntryPoint( hModule, ordinal );
1034
1035     TRACE("returning %08x\n", (UINT)ret );
1036     return ret;
1037 }
1038
1039
1040 /***********************************************************************
1041  *           GetProcAddress             (KERNEL32.@)
1042  */
1043 FARPROC WINAPI GetProcAddress( HMODULE hModule, LPCSTR function )
1044 {
1045     NTSTATUS    nts;
1046     FARPROC     fp;
1047
1048     if (HIWORD(function))
1049     {
1050         ANSI_STRING     str;
1051
1052         RtlInitAnsiString( &str, function );
1053         nts = LdrGetProcedureAddress( hModule, &str, 0, (void**)&fp );
1054     }
1055     else
1056         nts = LdrGetProcedureAddress( hModule, NULL, (DWORD)function, (void**)&fp );
1057     if (nts != STATUS_SUCCESS)
1058     {
1059         SetLastError( RtlNtStatusToDosError( nts ) );
1060         fp = NULL;
1061     }
1062     return fp;
1063 }
1064
1065 /***********************************************************************
1066  *           GetProcAddress32                   (KERNEL.453)
1067  */
1068 FARPROC WINAPI GetProcAddress32_16( HMODULE hModule, LPCSTR function )
1069 {
1070     /* FIXME: we used to disable snoop when returning proc for Win16 subsystem */
1071     return GetProcAddress( hModule, function );
1072 }
1073
1074 /***************************************************************************
1075  *              HasGPHandler                    (KERNEL.338)
1076  */
1077
1078 #include "pshpack1.h"
1079 typedef struct _GPHANDLERDEF
1080 {
1081     WORD selector;
1082     WORD rangeStart;
1083     WORD rangeEnd;
1084     WORD handler;
1085 } GPHANDLERDEF;
1086 #include "poppack.h"
1087
1088 SEGPTR WINAPI HasGPHandler16( SEGPTR address )
1089 {
1090     HMODULE16 hModule;
1091     int gpOrdinal;
1092     SEGPTR gpPtr;
1093     GPHANDLERDEF *gpHandler;
1094
1095     if (    (hModule = FarGetOwner16( SELECTOROF(address) )) != 0
1096          && (gpOrdinal = NE_GetOrdinal( hModule, "__GP" )) != 0
1097          && (gpPtr = (SEGPTR)NE_GetEntryPointEx( hModule, gpOrdinal, FALSE )) != 0
1098          && !IsBadReadPtr16( gpPtr, sizeof(GPHANDLERDEF) )
1099          && (gpHandler = MapSL( gpPtr )) != NULL )
1100     {
1101         while (gpHandler->selector)
1102         {
1103             if (    SELECTOROF(address) == gpHandler->selector
1104                  && OFFSETOF(address)   >= gpHandler->rangeStart
1105                  && OFFSETOF(address)   <  gpHandler->rangeEnd  )
1106                 return MAKESEGPTR( gpHandler->selector, gpHandler->handler );
1107             gpHandler++;
1108         }
1109     }
1110
1111     return 0;
1112 }