loader/ne/module.c

   1 /*
   2  * NE modules
   3  *
   4  * Copyright 1995 Alexandre Julliard
   5  */
   6
   7 #include <assert.h>
   8 #include <fcntl.h>
   9 #include <stdlib.h>
  10 #include <string.h>
  11 #include <unistd.h>
  12 #include <ctype.h>
  13 #include "wine/winbase16.h"
  14 #include "winerror.h"
  15 #include "module.h"
  16 #include "neexe.h"
  17 #include "toolhelp.h"
  18 #include "file.h"
  19 #include "ldt.h"
  20 #include "callback.h"
  21 #include "heap.h"
  22 #include "task.h"
  23 #include "global.h"
  24 #include "process.h"
  25 #include "snoop.h"
  26 #include "syslevel.h"
  27 #include "builtin16.h"
  28 #include "stackframe.h"
  29 #include "debugtools.h"
  30 #include "loadorder.h"
  31 #include "elfdll.h"
  32 #include "server.h"
  33
  34 DEFAULT_DEBUG_CHANNEL(module);
  35
  36 #define hFirstModule (pThhook->hExeHead)
  37
  38 static NE_MODULE *pCachedModule = 0;  /* Module cached by NE_OpenFile */
  39
  40 static HINSTANCE16 NE_LoadModule( LPCSTR name, BOOL lib_only );
  41 static BOOL16 NE_FreeModule( HMODULE16 hModule, BOOL call_wep );
  42 static HINSTANCE16 NE_InitProcess( NE_MODULE *pModule, HTASK hTask );
  43
  44 static HINSTANCE16 MODULE_LoadModule16( LPCSTR libname, BOOL implicit, BOOL lib_only );
  45
  46 static HMODULE16 NE_GetModuleByFilename( LPCSTR name );
  47
  48 /***********************************************************************
  49  *           NE_GetPtr
  50  */
  51 NE_MODULE *NE_GetPtr( HMODULE16 hModule )
  52 {
  53     return (NE_MODULE *)GlobalLock16( GetExePtr(hModule) );
  54 }
  55
  56
  57 /***********************************************************************
  58  *           NE_DumpModule
  59  */
  60 void NE_DumpModule( HMODULE16 hModule )
  61 {
  62     int i, ordinal;
  63     SEGTABLEENTRY *pSeg;
  64     BYTE *pstr;
  65     WORD *pword;
  66     NE_MODULE *pModule;
  67     ET_BUNDLE *bundle;
  68     ET_ENTRY *entry;
  69
  70     if (!(pModule = NE_GetPtr( hModule )))
  71     {
  72         MESSAGE( "**** %04x is not a module handle\n", hModule );
  73         return;
  74     }
  75
  76       /* Dump the module info */
  77     DPRINTF( "---\n" );
  78     DPRINTF( "Module %04x:\n", hModule );
  79     DPRINTF( "count=%d flags=%04x heap=%d stack=%d\n",
  80           pModule->count, pModule->flags,
  81           pModule->heap_size, pModule->stack_size );
  82     DPRINTF( "cs:ip=%04x:%04x ss:sp=%04x:%04x ds=%04x nb seg=%d modrefs=%d\n",
  83           pModule->cs, pModule->ip, pModule->ss, pModule->sp, pModule->dgroup,
  84           pModule->seg_count, pModule->modref_count );
  85     DPRINTF( "os_flags=%d swap_area=%d version=%04x\n",
  86           pModule->os_flags, pModule->min_swap_area,
  87           pModule->expected_version );
  88     if (pModule->flags & NE_FFLAGS_WIN32)
  89         DPRINTF( "PE module=%08x\n", pModule->module32 );
  90
  91       /* Dump the file info */
  92     DPRINTF( "---\n" );
  93     DPRINTF( "Filename: '%s'\n", NE_MODULE_NAME(pModule) );
  94
  95       /* Dump the segment table */
  96     DPRINTF( "---\n" );
  97     DPRINTF( "Segment table:\n" );
  98     pSeg = NE_SEG_TABLE( pModule );
  99     for (i = 0; i < pModule->seg_count; i++, pSeg++)
 100         DPRINTF( "%02x: pos=%d size=%d flags=%04x minsize=%d hSeg=%04x\n",
 101               i + 1, pSeg->filepos, pSeg->size, pSeg->flags,
 102               pSeg->minsize, pSeg->hSeg );
 103
 104       /* Dump the resource table */
 105     DPRINTF( "---\n" );
 106     DPRINTF( "Resource table:\n" );
 107     if (pModule->res_table)
 108     {
 109         pword = (WORD *)((BYTE *)pModule + pModule->res_table);
 110         DPRINTF( "Alignment: %d\n", *pword++ );
 111         while (*pword)
 112         {
 113             struct resource_typeinfo_s *ptr = (struct resource_typeinfo_s *)pword;
 114             struct resource_nameinfo_s *pname = (struct resource_nameinfo_s *)(ptr + 1);
 115             DPRINTF( "id=%04x count=%d\n", ptr->type_id, ptr->count );
 116             for (i = 0; i < ptr->count; i++, pname++)
 117                 DPRINTF( "offset=%d len=%d id=%04x\n",
 118                       pname->offset, pname->length, pname->id );
 119             pword = (WORD *)pname;
 120         }
 121     }
 122     else DPRINTF( "None\n" );
 123
 124       /* Dump the resident name table */
 125     DPRINTF( "---\n" );
 126     DPRINTF( "Resident-name table:\n" );
 127     pstr = (char *)pModule + pModule->name_table;
 128     while (*pstr)
 129     {
 130         DPRINTF( "%*.*s: %d\n", *pstr, *pstr, pstr + 1,
 131               *(WORD *)(pstr + *pstr + 1) );
 132         pstr += *pstr + 1 + sizeof(WORD);
 133     }
 134
 135       /* Dump the module reference table */
 136     DPRINTF( "---\n" );
 137     DPRINTF( "Module ref table:\n" );
 138     if (pModule->modref_table)
 139     {
 140         pword = (WORD *)((BYTE *)pModule + pModule->modref_table);
 141         for (i = 0; i < pModule->modref_count; i++, pword++)
 142         {
 143             char name[10];
 144             GetModuleName16( *pword, name, sizeof(name) );
 145             DPRINTF( "%d: %04x -> '%s'\n", i, *pword, name );
 146         }
 147     }
 148     else DPRINTF( "None\n" );
 149
 150       /* Dump the entry table */
 151     DPRINTF( "---\n" );
 152     DPRINTF( "Entry table:\n" );
 153     bundle = (ET_BUNDLE *)((BYTE *)pModule+pModule->entry_table);
 154     do {
 155         entry = (ET_ENTRY *)((BYTE *)bundle+6);
 156         DPRINTF( "Bundle %d-%d: %02x\n", bundle->first, bundle->last, entry->type);
 157         ordinal = bundle->first;
 158         while (ordinal < bundle->last)
 159         {
 160             if (entry->type == 0xff)
 161                 DPRINTF("%d: %02x:%04x (moveable)\n", ordinal++, entry->segnum, entry->offs);
 162             else
 163                 DPRINTF("%d: %02x:%04x (fixed)\n", ordinal++, entry->segnum, entry->offs);
 164             entry++;
 165     }
 166     } while ( (bundle->next)
 167            && (bundle = ((ET_BUNDLE *)((BYTE *)pModule + bundle->next))) );
 168
 169     /* Dump the non-resident names table */
 170     DPRINTF( "---\n" );
 171     DPRINTF( "Non-resident names table:\n" );
 172     if (pModule->nrname_handle)
 173     {
 174         pstr = (char *)GlobalLock16( pModule->nrname_handle );
 175         while (*pstr)
 176         {
 177             DPRINTF( "%*.*s: %d\n", *pstr, *pstr, pstr + 1,
 178                    *(WORD *)(pstr + *pstr + 1) );
 179             pstr += *pstr + 1 + sizeof(WORD);
 180         }
 181     }
 182     DPRINTF( "\n" );
 183 }
 184
 185
 186 /***********************************************************************
 187  *           NE_WalkModules
 188  *
 189  * Walk the module list and print the modules.
 190  */
 191 void NE_WalkModules(void)
 192 {
 193     HMODULE16 hModule = hFirstModule;
 194     MESSAGE( "Module Flags Name\n" );
 195     while (hModule)
 196     {
 197         NE_MODULE *pModule = NE_GetPtr( hModule );
 198         if (!pModule)
 199         {
 200             MESSAGE( "Bad module %04x in list\n", hModule );
 201             return;
 202         }
 203         MESSAGE( " %04x  %04x  %.*s\n", hModule, pModule->flags,
 204                  *((char *)pModule + pModule->name_table),
 205                  (char *)pModule + pModule->name_table + 1 );
 206         hModule = pModule->next;
 207     }
 208 }
 209
 210
 211 /**********************************************************************
 212  *           NE_RegisterModule
 213  */
 214 void NE_RegisterModule( NE_MODULE *pModule )
 215 {
 216     pModule->next = hFirstModule;
 217     hFirstModule = pModule->self;
 218 }
 219
 220
 221 /***********************************************************************
 222  *           NE_GetOrdinal
 223  *
 224  * Lookup the ordinal for a given name.
 225  */
 226 WORD NE_GetOrdinal( HMODULE16 hModule, const char *name )
 227 {
 228     unsigned char buffer[256], *cpnt;
 229     BYTE len;
 230     NE_MODULE *pModule;
 231
 232     if (!(pModule = NE_GetPtr( hModule ))) return 0;
 233     assert( !(pModule->flags & NE_FFLAGS_WIN32) );
 234
 235     TRACE("(%04x,'%s')\n", hModule, name );
 236
 237       /* First handle names of the form '#xxxx' */
 238
 239     if (name[0] == '#') return atoi( name + 1 );
 240
 241       /* Now copy and uppercase the string */
 242
 243     strcpy( buffer, name );
 244     CharUpperA( buffer );
 245     len = strlen( buffer );
 246
 247       /* First search the resident names */
 248
 249     cpnt = (char *)pModule + pModule->name_table;
 250
 251       /* Skip the first entry (module name) */
 252     cpnt += *cpnt + 1 + sizeof(WORD);
 253     while (*cpnt)
 254     {
 255         if (((BYTE)*cpnt == len) && !memcmp( cpnt+1, buffer, len ))
 256         {
 257             TRACE("  Found: ordinal=%d\n",
 258                             *(WORD *)(cpnt + *cpnt + 1) );
 259             return *(WORD *)(cpnt + *cpnt + 1);
 260         }
 261         cpnt += *cpnt + 1 + sizeof(WORD);
 262     }
 263
 264       /* Now search the non-resident names table */
 265
 266     if (!pModule->nrname_handle) return 0;  /* No non-resident table */
 267     cpnt = (char *)GlobalLock16( pModule->nrname_handle );
 268
 269       /* Skip the first entry (module description string) */
 270     cpnt += *cpnt + 1 + sizeof(WORD);
 271     while (*cpnt)
 272     {
 273         if (((BYTE)*cpnt == len) && !memcmp( cpnt+1, buffer, len ))
 274         {
 275             TRACE("  Found: ordinal=%d\n",
 276                             *(WORD *)(cpnt + *cpnt + 1) );
 277             return *(WORD *)(cpnt + *cpnt + 1);
 278         }
 279         cpnt += *cpnt + 1 + sizeof(WORD);
 280     }
 281     return 0;
 282 }
 283
 284
 285 /***********************************************************************
 286  *           NE_GetEntryPoint   (WPROCS.27)
 287  *
 288  * Return the entry point for a given ordinal.
 289  */
 290 FARPROC16 WINAPI WIN16_NE_GetEntryPoint( HMODULE16 hModule, WORD ordinal )
 291 {
 292     FARPROC16 ret = NE_GetEntryPointEx( hModule, ordinal, TRUE );
 293     CURRENT_STACK16->ecx = hModule; /* FIXME: might be incorrect value */
 294     return ret;
 295 }
 296 FARPROC16 WINAPI NE_GetEntryPoint( HMODULE16 hModule, WORD ordinal )
 297 {
 298     return NE_GetEntryPointEx( hModule, ordinal, TRUE );
 299 }
 300 FARPROC16 NE_GetEntryPointEx( HMODULE16 hModule, WORD ordinal, BOOL16 snoop )
 301 {
 302     NE_MODULE *pModule;
 303     WORD sel, offset, i;
 304
 305     ET_ENTRY *entry;
 306     ET_BUNDLE *bundle;
 307
 308     if (!(pModule = NE_GetPtr( hModule ))) return 0;
 309     assert( !(pModule->flags & NE_FFLAGS_WIN32) );
 310
 311     bundle = (ET_BUNDLE *)((BYTE *)pModule + pModule->entry_table);
 312     while ((ordinal < bundle->first + 1) || (ordinal > bundle->last))
 313     {
 314         if (!(bundle->next))
 315             return 0;
 316         bundle = (ET_BUNDLE *)((BYTE *)pModule + bundle->next);
 317     }
 318
 319     entry = (ET_ENTRY *)((BYTE *)bundle+6);
 320     for (i=0; i < (ordinal - bundle->first - 1); i++)
 321         entry++;
 322
 323     sel = entry->segnum;
 324     offset = entry->offs;
 325
 326     if (sel == 0xfe) sel = 0xffff;  /* constant entry */
 327     else sel = GlobalHandleToSel16(NE_SEG_TABLE(pModule)[sel-1].hSeg);
 328     if (sel==0xffff)
 329         return (FARPROC16)PTR_SEG_OFF_TO_SEGPTR( sel, offset );
 330     if (!snoop)
 331         return (FARPROC16)PTR_SEG_OFF_TO_SEGPTR( sel, offset );
 332     else
 333         return (FARPROC16)SNOOP16_GetProcAddress16(hModule,ordinal,(FARPROC16)PTR_SEG_OFF_TO_SEGPTR( sel, offset ));
 334 }
 335
 336
 337 /***********************************************************************
 338  *           NE_SetEntryPoint
 339  *
 340  * Change the value of an entry point. Use with caution!
 341  * It can only change the offset value, not the selector.
 342  */
 343 BOOL16 NE_SetEntryPoint( HMODULE16 hModule, WORD ordinal, WORD offset )
 344 {
 345     NE_MODULE *pModule;
 346     ET_ENTRY *entry;
 347     ET_BUNDLE *bundle;
 348     int i;
 349
 350     if (!(pModule = NE_GetPtr( hModule ))) return FALSE;
 351     assert( !(pModule->flags & NE_FFLAGS_WIN32) );
 352
 353     bundle = (ET_BUNDLE *)((BYTE *)pModule + pModule->entry_table);
 354     while ((ordinal < bundle->first + 1) || (ordinal > bundle->last))
 355         {
 356         bundle = (ET_BUNDLE *)((BYTE *)pModule + bundle->next);
 357         if (!(bundle->next))
 358             return 0;
 359     }
 360
 361     entry = (ET_ENTRY *)((BYTE *)bundle+6);
 362     for (i=0; i < (ordinal - bundle->first - 1); i++)
 363         entry++;
 364
 365     entry->offs = offset;
 366     return TRUE;
 367 }
 368
 369
 370 /***********************************************************************
 371  *           NE_OpenFile
 372  */
 373 HANDLE NE_OpenFile( NE_MODULE *pModule )
 374 {
 375     char *name;
 376
 377     static HANDLE cachedfd = -1;
 378
 379     TRACE("(%p) cache: mod=%p fd=%d\n",
 380            pModule, pCachedModule, cachedfd );
 381     if (pCachedModule == pModule) return cachedfd;
 382     CloseHandle( cachedfd );
 383     pCachedModule = pModule;
 384     name = NE_MODULE_NAME( pModule );
 385     if ((cachedfd = CreateFileA( name, GENERIC_READ, FILE_SHARE_READ,
 386                                    NULL, OPEN_EXISTING, 0, -1 )) == -1)
 387         MESSAGE( "Can't open file '%s' for module %04x\n", name, pModule->self );
 388     TRACE("opened '%s' -> %d\n",
 389                     name, cachedfd );
 390     return cachedfd;
 391 }
 392
 393
 394 /***********************************************************************
 395  *           NE_LoadExeHeader
 396  */
 397 static HMODULE16 NE_LoadExeHeader( LPCSTR filename )
 398 {
 399     IMAGE_DOS_HEADER mz_header;
 400     IMAGE_OS2_HEADER ne_header;
 401     int size;
 402     HMODULE16 hModule;
 403     NE_MODULE *pModule;
 404     BYTE *pData, *pTempEntryTable;
 405     char *buffer, *fastload = NULL;
 406     int fastload_offset = 0, fastload_length = 0;
 407     ET_ENTRY *entry;
 408     ET_BUNDLE *bundle, *oldbundle;
 409     HFILE16 hFile;
 410     OFSTRUCT ofs;
 411
 412     /* Open file */
 413     if ((hFile = OpenFile16( filename, &ofs, OF_READ )) == HFILE_ERROR16)
 414         return (HMODULE16)2;  /* File not found */
 415
 416   /* Read a block from either the file or the fast-load area. */
 417 #define READ(offset,size,buffer) \
 418        ((fastload && ((offset) >= fastload_offset) && \
 419          ((offset)+(size) <= fastload_offset+fastload_length)) ? \
 420         (memcpy( buffer, fastload+(offset)-fastload_offset, (size) ), TRUE) : \
 421         (_llseek16( hFile, (offset), SEEK_SET), \
 422          _hread16( hFile, (buffer), (size) ) == (size)))
 423
 424     _llseek16( hFile, 0, SEEK_SET );
 425     if ((_hread16(hFile,&mz_header,sizeof(mz_header)) != sizeof(mz_header)) ||
 426         (mz_header.e_magic != IMAGE_DOS_SIGNATURE))
 427     {
 428         _lclose16( hFile );
 429         return (HMODULE16)11;  /* invalid exe */
 430     }
 431
 432     _llseek16( hFile, mz_header.e_lfanew, SEEK_SET );
 433     if (_hread16( hFile, &ne_header, sizeof(ne_header) ) != sizeof(ne_header))
 434     {
 435         _lclose16( hFile );
 436         return (HMODULE16)11;  /* invalid exe */
 437     }
 438
 439     if (ne_header.ne_magic == IMAGE_NT_SIGNATURE) return (HMODULE16)21;  /* win32 exe */
 440     if (ne_header.ne_magic != IMAGE_OS2_SIGNATURE) return (HMODULE16)11;  /* invalid exe */
 441
 442     if (ne_header.ne_magic == IMAGE_OS2_SIGNATURE_LX) {
 443       MESSAGE("Sorry, this is an OS/2 linear executable (LX) file !\n");
 444       _lclose16( hFile );
 445       return (HMODULE16)12;
 446     }
 447
 448     /* We now have a valid NE header */
 449
 450     size = sizeof(NE_MODULE) +
 451              /* segment table */
 452            ne_header.ne_cseg * sizeof(SEGTABLEENTRY) +
 453              /* resource table */
 454            ne_header.ne_restab - ne_header.ne_rsrctab +
 455              /* resident names table */
 456            ne_header.ne_modtab - ne_header.ne_restab +
 457              /* module ref table */
 458            ne_header.ne_cmod * sizeof(WORD) +
 459              /* imported names table */
 460            ne_header.ne_enttab - ne_header.ne_imptab +
 461              /* entry table length */
 462            ne_header.ne_cbenttab +
 463              /* entry table extra conversion space */
 464            sizeof(ET_BUNDLE) +
 465            2 * (ne_header.ne_cbenttab - ne_header.ne_cmovent*6) +
 466              /* loaded file info */
 467            sizeof(OFSTRUCT)-sizeof(ofs.szPathName)+strlen(ofs.szPathName)+1;
 468
 469     hModule = GlobalAlloc16( GMEM_FIXED | GMEM_ZEROINIT, size );
 470     if (!hModule)
 471     {
 472         _lclose16( hFile );
 473         return (HMODULE16)11;  /* invalid exe */
 474     }
 475
 476     FarSetOwner16( hModule, hModule );
 477     pModule = (NE_MODULE *)GlobalLock16( hModule );
 478     memcpy( pModule, &ne_header, sizeof(ne_header) );
 479     pModule->count = 0;
 480     /* check *programs* for default minimal stack size */
 481     if ( (!(pModule->flags & NE_FFLAGS_LIBMODULE))
 482                 && (pModule->stack_size < 0x1400) )
 483                 pModule->stack_size = 0x1400;
 484     pModule->module32 = 0;
 485     pModule->self = hModule;
 486     pModule->self_loading_sel = 0;
 487     pData = (BYTE *)(pModule + 1);
 488
 489     /* Clear internal Wine flags in case they are set in the EXE file */
 490
 491     pModule->flags &= ~(NE_FFLAGS_BUILTIN | NE_FFLAGS_WIN32);
 492
 493     /* Read the fast-load area */
 494
 495     if (ne_header.ne_flagsothers & NE_AFLAGS_FASTLOAD)
 496     {
 497         fastload_offset=ne_header.fastload_offset << ne_header.ne_align;
 498         fastload_length=ne_header.fastload_length << ne_header.ne_align;
 499         TRACE("Using fast-load area offset=%x len=%d\n",
 500                         fastload_offset, fastload_length );
 501         if ((fastload = HeapAlloc( GetProcessHeap(), 0, fastload_length )) != NULL)
 502         {
 503             _llseek16( hFile, fastload_offset, SEEK_SET);
 504             if (_hread16(hFile, fastload, fastload_length) != fastload_length)
 505             {
 506                 HeapFree( GetProcessHeap(), 0, fastload );
 507                 WARN("Error reading fast-load area!\n");
 508                 fastload = NULL;
 509             }
 510         }
 511     }
 512
 513     /* Get the segment table */
 514
 515     pModule->seg_table = (int)pData - (int)pModule;
 516     buffer = HeapAlloc( GetProcessHeap(), 0, ne_header.ne_cseg *
 517                                       sizeof(struct ne_segment_table_entry_s));
 518     if (buffer)
 519     {
 520         int i;
 521         struct ne_segment_table_entry_s *pSeg;
 522
 523         if (!READ( mz_header.e_lfanew + ne_header.ne_segtab,
 524              ne_header.ne_cseg * sizeof(struct ne_segment_table_entry_s),
 525              buffer ))
 526         {
 527             HeapFree( GetProcessHeap(), 0, buffer );
 528             if (fastload)
 529                 HeapFree( GetProcessHeap(), 0, fastload );
 530             GlobalFree16( hModule );
 531             _lclose16( hFile );
 532             return (HMODULE16)11;  /* invalid exe */
 533         }
 534         pSeg = (struct ne_segment_table_entry_s *)buffer;
 535         for (i = ne_header.ne_cseg; i > 0; i--, pSeg++)
 536         {
 537             memcpy( pData, pSeg, sizeof(*pSeg) );
 538             pData += sizeof(SEGTABLEENTRY);
 539         }
 540         HeapFree( GetProcessHeap(), 0, buffer );
 541     }
 542     else
 543     {
 544         if (fastload)
 545             HeapFree( GetProcessHeap(), 0, fastload );
 546         GlobalFree16( hModule );
 547         _lclose16( hFile );
 548         return (HMODULE16)11;  /* invalid exe */
 549     }
 550
 551     /* Get the resource table */
 552
 553     if (ne_header.ne_rsrctab < ne_header.ne_restab)
 554     {
 555         pModule->res_table = (int)pData - (int)pModule;
 556         if (!READ(mz_header.e_lfanew + ne_header.ne_rsrctab,
 557                   ne_header.ne_restab - ne_header.ne_rsrctab,
 558                   pData ))
 559         {
 560             _lclose16( hFile );
 561             return (HMODULE16)11;  /* invalid exe */
 562         }
 563         pData += ne_header.ne_restab - ne_header.ne_rsrctab;
 564         NE_InitResourceHandler( hModule );
 565     }
 566     else pModule->res_table = 0;  /* No resource table */
 567
 568     /* Get the resident names table */
 569
 570     pModule->name_table = (int)pData - (int)pModule;
 571     if (!READ( mz_header.e_lfanew + ne_header.ne_restab,
 572                ne_header.ne_modtab - ne_header.ne_restab,
 573                pData ))
 574     {
 575         if (fastload)
 576             HeapFree( GetProcessHeap(), 0, fastload );
 577         GlobalFree16( hModule );
 578         _lclose16( hFile );
 579         return (HMODULE16)11;  /* invalid exe */
 580     }
 581     pData += ne_header.ne_modtab - ne_header.ne_restab;
 582
 583     /* Get the module references table */
 584
 585     if (ne_header.ne_cmod > 0)
 586     {
 587         pModule->modref_table = (int)pData - (int)pModule;
 588         if (!READ( mz_header.e_lfanew + ne_header.ne_modtab,
 589                   ne_header.ne_cmod * sizeof(WORD),
 590                   pData ))
 591         {
 592             if (fastload)
 593                 HeapFree( GetProcessHeap(), 0, fastload );
 594             GlobalFree16( hModule );
 595             _lclose16( hFile );
 596             return (HMODULE16)11;  /* invalid exe */
 597         }
 598         pData += ne_header.ne_cmod * sizeof(WORD);
 599     }
 600     else pModule->modref_table = 0;  /* No module references */
 601
 602     /* Get the imported names table */
 603
 604     pModule->import_table = (int)pData - (int)pModule;
 605     if (!READ( mz_header.e_lfanew + ne_header.ne_imptab,
 606                ne_header.ne_enttab - ne_header.ne_imptab,
 607                pData ))
 608     {
 609         if (fastload)
 610             HeapFree( GetProcessHeap(), 0, fastload );
 611         GlobalFree16( hModule );
 612         _lclose16( hFile );
 613         return (HMODULE16)11;  /* invalid exe */
 614     }
 615     pData += ne_header.ne_enttab - ne_header.ne_imptab;
 616
 617     /* Load entry table, convert it to the optimized version used by Windows */
 618
 619     if ((pTempEntryTable = HeapAlloc( GetProcessHeap(), 0, ne_header.ne_cbenttab)) != NULL)
 620     {
 621         BYTE nr_entries, type, *s;
 622
 623         TRACE("Converting entry table.\n");
 624     pModule->entry_table = (int)pData - (int)pModule;
 625     if (!READ( mz_header.e_lfanew + ne_header.ne_enttab,
 626                 ne_header.ne_cbenttab, pTempEntryTable ))
 627     {
 628             HeapFree( GetProcessHeap(), 0, pTempEntryTable );
 629             if (fastload)
 630                 HeapFree( GetProcessHeap(), 0, fastload );
 631         GlobalFree16( hModule );
 632         _lclose16( hFile );
 633         return (HMODULE16)11;  /* invalid exe */
 634     }
 635
 636         s = pTempEntryTable;
 637         TRACE("entry table: offs %04x, len %04x, entries %d\n", ne_header.ne_enttab, ne_header.ne_cbenttab, *s);
 638
 639         bundle = (ET_BUNDLE *)pData;
 640         TRACE("first bundle: %p\n", bundle);
 641         memset(bundle, 0, sizeof(ET_BUNDLE)); /* in case no entry table exists */
 642         entry = (ET_ENTRY *)((BYTE *)bundle+6);
 643
 644         while ((nr_entries = *s++))
 645         {
 646             if ((type = *s++))
 647             {
 648                 bundle->last += nr_entries;
 649                 if (type == 0xff)
 650                 while (nr_entries--)
 651                 {
 652                     entry->type   = type;
 653                     entry->flags  = *s++;
 654                     s += 2;
 655                     entry->segnum = *s++;
 656                     entry->offs   = *(WORD *)s; s += 2;
 657                     /*TRACE(module, "entry: %p, type: %d, flags: %d, segnum: %d, offs: %04x\n", entry, entry->type, entry->flags, entry->segnum, entry->offs);*/
 658                     entry++;
 659                 }
 660                 else
 661                 while (nr_entries--)
 662                 {
 663                     entry->type   = type;
 664                     entry->flags  = *s++;
 665                     entry->segnum = type;
 666                     entry->offs   = *(WORD *)s; s += 2;
 667                     /*TRACE(module, "entry: %p, type: %d, flags: %d, segnum: %d, offs: %04x\n", entry, entry->type, entry->flags, entry->segnum, entry->offs);*/
 668                     entry++;
 669                 }
 670             }
 671             else
 672             {
 673                 if (bundle->first == bundle->last)
 674                 {
 675                     bundle->first += nr_entries;
 676                     bundle->last += nr_entries;
 677                 }
 678                 else
 679                 {
 680                     oldbundle = bundle;
 681                     oldbundle->next = ((int)entry - (int)pModule);
 682                     bundle = (ET_BUNDLE *)entry;
 683                     TRACE("new bundle: %p\n", bundle);
 684                     bundle->first = bundle->last =
 685                         oldbundle->last + nr_entries;
 686                     bundle->next = 0;
 687                     (BYTE *)entry += sizeof(ET_BUNDLE);
 688                 }
 689             }
 690         }
 691         HeapFree( GetProcessHeap(), 0, pTempEntryTable );
 692     }
 693     else
 694     {
 695         if (fastload)
 696             HeapFree( GetProcessHeap(), 0, fastload );
 697         GlobalFree16( hModule );
 698         _lclose16( hFile );
 699         return (HMODULE16)11;  /* invalid exe */
 700     }
 701
 702     pData += ne_header.ne_cbenttab + sizeof(ET_BUNDLE) +
 703              2 * (ne_header.ne_cbenttab - ne_header.ne_cmovent*6);
 704
 705     if ((DWORD)entry > (DWORD)pData)
 706        ERR("converted entry table bigger than reserved space !!!\nentry: %p, pData: %p. Please report !\n", entry, pData);
 707
 708     /* Store the filename information */
 709
 710     pModule->fileinfo = (int)pData - (int)pModule;
 711     size = sizeof(OFSTRUCT)-sizeof(ofs.szPathName)+strlen(ofs.szPathName)+1;
 712     ofs.cBytes = size - 1;
 713     memcpy( pData, &ofs, size );
 714     pData += size;
 715
 716     /* Free the fast-load area */
 717
 718 #undef READ
 719     if (fastload)
 720         HeapFree( GetProcessHeap(), 0, fastload );
 721
 722     /* Get the non-resident names table */
 723
 724     if (ne_header.ne_cbnrestab)
 725     {
 726         pModule->nrname_handle = GLOBAL_Alloc( 0, ne_header.ne_cbnrestab,
 727                                                hModule, FALSE, FALSE, FALSE );
 728         if (!pModule->nrname_handle)
 729         {
 730             GlobalFree16( hModule );
 731             _lclose16( hFile );
 732             return (HMODULE16)11;  /* invalid exe */
 733         }
 734         buffer = GlobalLock16( pModule->nrname_handle );
 735         _llseek16( hFile, ne_header.ne_nrestab, SEEK_SET );
 736         if (_hread16( hFile, buffer, ne_header.ne_cbnrestab )
 737               != ne_header.ne_cbnrestab)
 738         {
 739             GlobalFree16( pModule->nrname_handle );
 740             GlobalFree16( hModule );
 741             _lclose16( hFile );
 742             return (HMODULE16)11;  /* invalid exe */
 743         }
 744     }
 745     else pModule->nrname_handle = 0;
 746
 747     /* Allocate a segment for the implicitly-loaded DLLs */
 748
 749     if (pModule->modref_count)
 750     {
 751         pModule->dlls_to_init = GLOBAL_Alloc(GMEM_ZEROINIT,
 752                                     (pModule->modref_count+1)*sizeof(HMODULE16),
 753                                     hModule, FALSE, FALSE, FALSE );
 754         if (!pModule->dlls_to_init)
 755         {
 756             if (pModule->nrname_handle) GlobalFree16( pModule->nrname_handle );
 757             GlobalFree16( hModule );
 758             _lclose16( hFile );
 759             return (HMODULE16)11;  /* invalid exe */
 760         }
 761     }
 762     else pModule->dlls_to_init = 0;
 763
 764     NE_RegisterModule( pModule );
 765     SNOOP16_RegisterDLL(pModule,ofs.szPathName);
 766
 767     _lclose16( hFile );
 768     return hModule;
 769 }
 770
 771
 772 /***********************************************************************
 773  *           NE_LoadDLLs
 774  *
 775  * Load all DLLs implicitly linked to a module.
 776  */
 777 static BOOL NE_LoadDLLs( NE_MODULE *pModule )
 778 {
 779     int i;
 780     WORD *pModRef = (WORD *)((char *)pModule + pModule->modref_table);
 781     WORD *pDLLs = (WORD *)GlobalLock16( pModule->dlls_to_init );
 782
 783     for (i = 0; i < pModule->modref_count; i++, pModRef++)
 784     {
 785         char buffer[260], *p;
 786         BYTE *pstr = (BYTE *)pModule + pModule->import_table + *pModRef;
 787         memcpy( buffer, pstr + 1, *pstr );
 788         *(buffer + *pstr) = 0; /* terminate it */
 789
 790         TRACE("Loading '%s'\n", buffer );
 791         if (!(*pModRef = GetModuleHandle16( buffer )))
 792         {
 793             /* If the DLL is not loaded yet, load it and store */
 794             /* its handle in the list of DLLs to initialize.   */
 795             HMODULE16 hDLL;
 796
 797             /* Append .DLL to name if no extension present */
 798             if (!(p = strrchr( buffer, '.')) || strchr( p, '/' ) || strchr( p, '\\'))
 799                     strcat( buffer, ".DLL" );
 800
 801             if ((hDLL = MODULE_LoadModule16( buffer, TRUE, TRUE )) < 32)
 802             {
 803                 /* FIXME: cleanup what was done */
 804
 805                 MESSAGE( "Could not load '%s' required by '%.*s', error=%d\n",
 806                      buffer, *((BYTE*)pModule + pModule->name_table),
 807                      (char *)pModule + pModule->name_table + 1, hDLL );
 808                 return FALSE;
 809             }
 810             *pModRef = GetExePtr( hDLL );
 811             *pDLLs++ = *pModRef;
 812         }
 813         else  /* Increment the reference count of the DLL */
 814         {
 815             NE_MODULE *pOldDLL;
 816
 817             pOldDLL = NE_GetPtr( *pModRef );
 818             if (pOldDLL) pOldDLL->count++;
 819         }
 820     }
 821     return TRUE;
 822 }
 823
 824
 825 /**********************************************************************
 826  *          NE_DoLoadModule
 827  *
 828  * Load first instance of NE module from file.
 829  *
 830  * pModule must point to a module structure prepared by NE_LoadExeHeader.
 831  * This routine must never be called twice on a module.
 832  *
 833  */
 834 static HINSTANCE16 NE_DoLoadModule( NE_MODULE *pModule )
 835 {
 836     /* Allocate the segments for this module */
 837
 838     if (!NE_CreateAllSegments( pModule ))
 839         return ERROR_NOT_ENOUGH_MEMORY; /* 8 */
 840
 841     /* Load the referenced DLLs */
 842
 843     if (!NE_LoadDLLs( pModule ))
 844         return ERROR_FILE_NOT_FOUND; /* 2 */
 845
 846     /* Load the segments */
 847
 848     NE_LoadAllSegments( pModule );
 849
 850     /* Make sure the usage count is 1 on the first loading of  */
 851     /* the module, even if it contains circular DLL references */
 852
 853     pModule->count = 1;
 854
 855     return NE_GetInstance( pModule );
 856 }
 857
 858 /**********************************************************************
 859  *          NE_LoadModule
 860  *
 861  * Load first instance of NE module. (Note: caller is responsible for
 862  * ensuring the module isn't already loaded!)
 863  *
 864  * If the module turns out to be an executable module, only a
 865  * handle to a module stub is returned; this needs to be initialized
 866  * by calling NE_DoLoadModule later, in the context of the newly
 867  * created process.
 868  *
 869  * If lib_only is TRUE, however, the module is perforce treated
 870  * like a DLL module, even if it is an executable module.
 871  *
 872  */
 873 static HINSTANCE16 NE_LoadModule( LPCSTR name, BOOL lib_only )
 874 {
 875     NE_MODULE *pModule;
 876     HMODULE16 hModule;
 877     HINSTANCE16 hInstance;
 878
 879     hModule = NE_LoadExeHeader( name );
 880     if (hModule < 32) return hModule;
 881
 882     pModule = NE_GetPtr( hModule );
 883     if ( !pModule ) return hModule;
 884
 885     if ( !lib_only && !( pModule->flags & NE_FFLAGS_LIBMODULE ) )
 886         return hModule;
 887
 888     hInstance = NE_DoLoadModule( pModule );
 889     if ( hInstance < 32 )
 890     {
 891         /* cleanup ... */
 892         NE_FreeModule( hModule, 0 );
 893     }
 894
 895     return hInstance;
 896 }
 897
 898
 899 /**********************************************************************
 900  *          MODULE_LoadModule16
 901  *
 902  * Load a NE module in the order of the loadorder specification.
 903  * The caller is responsible that the module is not loaded already.
 904  *
 905  */
 906 static HINSTANCE16 MODULE_LoadModule16( LPCSTR libname, BOOL implicit, BOOL lib_only )
 907 {
 908         HINSTANCE16 hinst;
 909         int i;
 910         module_loadorder_t *plo;
 911
 912         plo = MODULE_GetLoadOrder(libname);
 913
 914         for(i = 0; i < MODULE_LOADORDER_NTYPES; i++)
 915         {
 916                 switch(plo->loadorder[i])
 917                 {
 918                 case MODULE_LOADORDER_DLL:
 919                         TRACE("Trying native dll '%s'\n", libname);
 920                         hinst = NE_LoadModule(libname, lib_only);
 921                         break;
 922
 923                 case MODULE_LOADORDER_ELFDLL:
 924                         TRACE("Trying elfdll '%s'\n", libname);
 925                         hinst = ELFDLL_LoadModule16(libname);
 926                         break;
 927
 928                 case MODULE_LOADORDER_BI:
 929                         TRACE("Trying built-in '%s'\n", libname);
 930                         hinst = BUILTIN_LoadModule(libname);
 931                         break;
 932
 933                 default:
 934                         ERR("Got invalid loadorder type %d (%s index %d)\n", plo->loadorder[i], plo->modulename, i);
 935                 /* Fall through */
 936
 937                 case MODULE_LOADORDER_SO:       /* This is not supported for NE modules */
 938                 case MODULE_LOADORDER_INVALID:  /* We ignore this as it is an empty entry */
 939                         hinst = 2;
 940                         break;
 941                 }
 942
 943                 if(hinst >= 32)
 944                 {
 945                         if(!implicit)
 946                         {
 947                                 HMODULE16 hModule;
 948                                 NE_MODULE *pModule;
 949
 950                                 hModule = GetModuleHandle16(libname);
 951                                 if(!hModule)
 952                                 {
 953                                         ERR("Serious trouble. Just loaded module '%s' (hinst=0x%04x), but can't get module handle\n",
 954                                                 libname, hinst);
 955                                         return 6;       /* ERROR_INVALID_HANDLE seems most appropriate */
 956                                 }
 957
 958                                 pModule = NE_GetPtr(hModule);
 959                                 if(!pModule)
 960                                 {
 961                                         ERR("Serious trouble. Just loaded module '%s' (hinst=0x%04x), but can't get NE_MODULE pointer\n",
 962                                                 libname, hinst);
 963                                         return 6;       /* ERROR_INVALID_HANDLE seems most appropriate */
 964                                 }
 965
 966                                 TRACE("Loaded module '%s' at 0x%04x, \n", libname, hinst);
 967
 968                                 /*
 969                                  * Call initialization routines for all loaded DLLs. Note that
 970                                  * when we load implicitly linked DLLs this will be done by InitTask().
 971                                  */
 972                                 if(pModule->flags & NE_FFLAGS_LIBMODULE)
 973                                 {
 974                                         NE_InitializeDLLs(hModule);
 975                                         NE_DllProcessAttach(hModule);
 976                                 }
 977                         }
 978                         return hinst;
 979                 }
 980
 981                 if(hinst != 2)
 982                 {
 983                         /* We quit searching when we get another error than 'File not found' */
 984                         break;
 985                 }
 986         }
 987         return hinst;   /* The last error that occured */
 988 }
 989
 990
 991 /**********************************************************************
 992  *          LoadModule16    (KERNEL.45)
 993  */
 994 HINSTANCE16 WINAPI LoadModule16( LPCSTR name, LPVOID paramBlock )
 995 {
 996     struct new_thread_request *req = get_req_buffer();
 997     TEB *teb = NULL;
 998     BOOL lib_only = !paramBlock || (paramBlock == (LPVOID)-1);
 999     LOADPARAMS16 *params;
1000     HINSTANCE16 instance;
1001     HMODULE16 hModule;
1002     NE_MODULE *pModule;
1003     LPSTR cmdline;
1004     WORD cmdShow;
1005     int socket;
1006
1007     /* Load module */
1008
1009     if ( (hModule = NE_GetModuleByFilename(name) ) != 0 )
1010     {
1011         /* Special case: second instance of an already loaded NE module */
1012
1013         if ( !( pModule = NE_GetPtr( hModule ) ) ) return (HINSTANCE16)11;
1014         if ( pModule->module32 ) return (HINSTANCE16)21;
1015
1016         /* Increment refcount */
1017
1018         pModule->count++;
1019     }
1020     else
1021     {
1022         /* Main case: load first instance of NE module */
1023
1024         if ( (hModule = MODULE_LoadModule16( name, FALSE, lib_only )) < 32 )
1025             return hModule;
1026
1027         if ( !(pModule = NE_GetPtr( hModule )) )
1028             return (HINSTANCE16)11;
1029     }
1030
1031     /* If library module, we just retrieve the instance handle */
1032
1033     if ( ( pModule->flags & NE_FFLAGS_LIBMODULE ) || lib_only )
1034         return NE_GetInstance( pModule );
1035
1036     /*
1037      *  At this point, we need to create a new process.
1038      *
1039      *  pModule points either to an already loaded module, whose refcount
1040      *  has already been incremented (to avoid having the module vanish
1041      *  in the meantime), or else to a stub module which contains only header
1042      *  information.
1043      */
1044
1045     /* Create the main thread */
1046
1047     req->suspend = 0;
1048     req->inherit = 0;
1049     if (server_call_fd( REQ_NEW_THREAD, -1, &socket )) return 0;
1050     CloseHandle( req->handle );
1051
1052     if (!(teb = THREAD_Create( socket, 0, FALSE ))) goto error;
1053     teb->startup = TASK_CallToStart;
1054
1055     /* Create a task for this process */
1056
1057     params = (LOADPARAMS16 *)paramBlock;
1058     cmdShow = ((WORD *)PTR_SEG_TO_LIN(params->showCmd))[1];
1059     cmdline = PTR_SEG_TO_LIN( params->cmdLine );
1060     if (!TASK_Create( pModule, cmdShow, teb, cmdline + 1, *cmdline )) goto error;
1061
1062     if ((instance = NE_InitProcess( pModule, teb->htask16 )) < 32) goto error;
1063
1064     if (SYSDEPS_SpawnThread( teb ) == -1) goto error;
1065
1066     /* Post event to start the task */
1067     PostEvent16( teb->htask16 );
1068     OldYield16();
1069
1070     return instance;
1071
1072  error:
1073     /* FIXME: free TEB and task */
1074     close( socket );
1075     return 0;  /* FIXME */
1076 }
1077
1078
1079 /**********************************************************************
1080  *          NE_InitProcess
1081  */
1082 static HINSTANCE16 NE_InitProcess( NE_MODULE *pModule, HTASK hTask )
1083 {
1084     HINSTANCE16 hInstance, hPrevInstance;
1085     TDB *pTask;
1086
1087     SEGTABLEENTRY *pSegTable = NE_SEG_TABLE( pModule );
1088     WORD sp;
1089
1090     SYSLEVEL_EnterWin16Lock();
1091
1092     if ( pModule->count > 0 )
1093     {
1094         /* Second instance of an already loaded NE module */
1095         /* Note that the refcount was already incremented by the parent */
1096
1097         hPrevInstance = NE_GetInstance( pModule );
1098
1099         if ( pModule->dgroup )
1100             if ( NE_CreateSegment( pModule, pModule->dgroup ) )
1101                 NE_LoadSegment( pModule, pModule->dgroup );
1102
1103         hInstance = NE_GetInstance( pModule );
1104         TRACE("created second instance %04x[%d] of instance %04x.\n", hInstance, pModule->dgroup, hPrevInstance);
1105
1106     }
1107     else
1108     {
1109         /* Load first instance of NE module */
1110
1111         pModule->flags |= NE_FFLAGS_GUI;  /* FIXME: is this necessary? */
1112
1113         hInstance = NE_DoLoadModule( pModule );
1114         hPrevInstance = 0;
1115     }
1116
1117     if ( hInstance >= 32 )
1118     {
1119         /* Enter instance handles into task struct */
1120
1121         pTask = (TDB *)GlobalLock16( hTask );
1122         pTask->hInstance = hInstance;
1123         pTask->hPrevInstance = hPrevInstance;
1124
1125         /* Use DGROUP for 16-bit stack */
1126
1127         if (!(sp = pModule->sp))
1128             sp = pSegTable[pModule->ss-1].minsize + pModule->stack_size;
1129         sp &= ~1;
1130         sp -= sizeof(STACK16FRAME);
1131         pTask->teb->cur_stack = PTR_SEG_OFF_TO_SEGPTR( GlobalHandleToSel16(hInstance), sp );
1132     }
1133
1134     SYSLEVEL_LeaveWin16Lock();
1135     return hInstance;
1136 }
1137
1138 /***********************************************************************
1139  *           LoadLibrary16   (KERNEL.95)
1140  */
1141 HINSTANCE16 WINAPI LoadLibrary16( LPCSTR libname )
1142 {
1143     return LoadModule16(libname, (LPVOID)-1 );
1144 }
1145
1146
1147 /**********************************************************************
1148  *          MODULE_CallWEP
1149  *
1150  * Call a DLL's WEP, allowing it to shut down.
1151  * FIXME: we always pass the WEP WEP_FREE_DLL, never WEP_SYSTEM_EXIT
1152  */
1153 static BOOL16 MODULE_CallWEP( HMODULE16 hModule )
1154 {
1155     FARPROC16 WEP = (FARPROC16)0;
1156     WORD ordinal = NE_GetOrdinal( hModule, "WEP" );
1157
1158     if (ordinal) WEP = NE_GetEntryPoint( hModule, ordinal );
1159     if (!WEP)
1160     {
1161         WARN("module %04x doesn't have a WEP\n", hModule );
1162         return FALSE;
1163     }
1164     return Callbacks->CallWindowsExitProc( WEP, WEP_FREE_DLL );
1165 }
1166
1167
1168 /**********************************************************************
1169  *          NE_FreeModule
1170  *
1171  * Implementation of FreeModule16().
1172  */
1173 static BOOL16 NE_FreeModule( HMODULE16 hModule, BOOL call_wep )
1174 {
1175     HMODULE16 *hPrevModule;
1176     NE_MODULE *pModule;
1177     HMODULE16 *pModRef;
1178     int i;
1179
1180     if (!(pModule = NE_GetPtr( hModule ))) return FALSE;
1181     hModule = pModule->self;
1182
1183     TRACE("%04x count %d\n", hModule, pModule->count );
1184
1185     if (((INT16)(--pModule->count)) > 0 ) return TRUE;
1186     else pModule->count = 0;
1187
1188     if (pModule->flags & NE_FFLAGS_BUILTIN)
1189         return FALSE;  /* Can't free built-in module */
1190
1191     if (call_wep && !(pModule->flags & NE_FFLAGS_WIN32))
1192     {
1193         if (pModule->flags & NE_FFLAGS_LIBMODULE)
1194         {
1195             MODULE_CallWEP( hModule );
1196
1197             /* Free the objects owned by the DLL module */
1198             TASK_CallTaskSignalProc( USIG16_DLL_UNLOAD, hModule );
1199             PROCESS_CallUserSignalProc( USIG_DLL_UNLOAD_WIN16, hModule );
1200         }
1201         else
1202             call_wep = FALSE;  /* We are freeing a task -> no more WEPs */
1203     }
1204
1205
1206     /* Clear magic number just in case */
1207
1208     pModule->magic = pModule->self = 0;
1209
1210       /* Remove it from the linked list */
1211
1212     hPrevModule = &hFirstModule;
1213     while (*hPrevModule && (*hPrevModule != hModule))
1214     {
1215         hPrevModule = &(NE_GetPtr( *hPrevModule ))->next;
1216     }
1217     if (*hPrevModule) *hPrevModule = pModule->next;
1218
1219     /* Free the referenced modules */
1220
1221     pModRef = (HMODULE16*)NE_MODULE_TABLE( pModule );
1222     for (i = 0; i < pModule->modref_count; i++, pModRef++)
1223     {
1224         NE_FreeModule( *pModRef, call_wep );
1225     }
1226
1227     /* Free the module storage */
1228
1229     GlobalFreeAll16( hModule );
1230
1231     /* Remove module from cache */
1232
1233     if (pCachedModule == pModule) pCachedModule = NULL;
1234     return TRUE;
1235 }
1236
1237
1238 /**********************************************************************
1239  *          FreeModule16    (KERNEL.46)
1240  */
1241 BOOL16 WINAPI FreeModule16( HMODULE16 hModule )
1242 {
1243     return NE_FreeModule( hModule, TRUE );
1244 }
1245
1246
1247 /***********************************************************************
1248  *           FreeLibrary16   (KERNEL.96)
1249  */
1250 void WINAPI FreeLibrary16( HINSTANCE16 handle )
1251 {
1252     TRACE("%04x\n", handle );
1253     FreeModule16( handle );
1254 }
1255
1256
1257 /**********************************************************************
1258  *          GetModuleName    (KERNEL.27)
1259  */
1260 BOOL16 WINAPI GetModuleName16( HINSTANCE16 hinst, LPSTR buf, INT16 count )
1261 {
1262     NE_MODULE *pModule;
1263     BYTE *p;
1264
1265     if (!(pModule = NE_GetPtr( hinst ))) return FALSE;
1266     p = (BYTE *)pModule + pModule->name_table;
1267     if (count > *p) count = *p + 1;
1268     if (count > 0)
1269     {
1270         memcpy( buf, p + 1, count - 1 );
1271         buf[count-1] = '\0';
1272     }
1273     return TRUE;
1274 }
1275
1276
1277 /**********************************************************************
1278  *          GetModuleUsage    (KERNEL.48)
1279  */
1280 INT16 WINAPI GetModuleUsage16( HINSTANCE16 hModule )
1281 {
1282     NE_MODULE *pModule = NE_GetPtr( hModule );
1283     return pModule ? pModule->count : 0;
1284 }
1285
1286
1287 /**********************************************************************
1288  *          GetExpWinVer    (KERNEL.167)
1289  */
1290 WORD WINAPI GetExpWinVer16( HMODULE16 hModule )
1291 {
1292     NE_MODULE *pModule = NE_GetPtr( hModule );
1293     if ( !pModule ) return 0;
1294
1295     /*
1296      * For built-in modules, fake the expected version the module should
1297      * have according to the Windows version emulated by Wine
1298      */
1299     if ( !pModule->expected_version )
1300     {
1301         OSVERSIONINFOA versionInfo;
1302         versionInfo.dwOSVersionInfoSize = sizeof(versionInfo);
1303
1304         if ( GetVersionExA( &versionInfo ) )
1305             pModule->expected_version =
1306                      (versionInfo.dwMajorVersion & 0xff) << 8
1307                    | (versionInfo.dwMinorVersion & 0xff);
1308     }
1309
1310     return pModule->expected_version;
1311 }
1312
1313
1314 /**********************************************************************
1315  *          GetModuleFileName16    (KERNEL.49)
1316  *
1317  * Comment: see GetModuleFileNameA
1318  *
1319  * Even if invoked by second instance of a program,
1320  * it still returns path of first one.
1321  */
1322 INT16 WINAPI GetModuleFileName16( HINSTANCE16 hModule, LPSTR lpFileName,
1323                                   INT16 nSize )
1324 {
1325     NE_MODULE *pModule;
1326
1327     /* Win95 does not query hModule if set to 0 !
1328      * Is this wrong or maybe Win3.1 only ? */
1329     if (!hModule) hModule = GetCurrentTask();
1330
1331     if (!(pModule = NE_GetPtr( hModule ))) return 0;
1332     lstrcpynA( lpFileName, NE_MODULE_NAME(pModule), nSize );
1333     if (pModule->expected_version >= 0x400)
1334         GetLongPathNameA(NE_MODULE_NAME(pModule), lpFileName, nSize);
1335     TRACE("%s\n", lpFileName );
1336     return strlen(lpFileName);
1337 }
1338
1339
1340 /**********************************************************************
1341  *          GetModuleHandle    (KERNEL.47)
1342  *
1343  * Find a module from a module name.
1344  *
1345  * NOTE: The current implementation works the same way the Windows 95 one
1346  *       does. Do not try to 'fix' it, fix the callers.
1347  *       + It does not do ANY extension handling (except that strange .EXE bit)!
1348  *       + It does not care about paths, just about basenames. (same as Windows)
1349  *
1350  * RETURNS
1351  *   LOWORD:
1352  *      the win16 module handle if found
1353  *      0 if not
1354  *   HIWORD (undocumented, see "Undocumented Windows", chapter 5):
1355  *      Always hFirstModule
1356  */
1357 DWORD WINAPI WIN16_GetModuleHandle( SEGPTR name )
1358 {
1359     if (HIWORD(name) == 0)
1360         return MAKELONG(GetExePtr( (HINSTANCE16)name), hFirstModule );
1361     return MAKELONG(GetModuleHandle16( PTR_SEG_TO_LIN(name)), hFirstModule );
1362 }
1363
1364 HMODULE16 WINAPI GetModuleHandle16( LPCSTR name )
1365 {
1366     HMODULE16   hModule = hFirstModule;
1367     LPSTR       s;
1368     BYTE        len, *name_table;
1369     char        tmpstr[MAX_PATH];
1370     NE_MODULE *pModule;
1371
1372     TRACE("(%s)\n", name);
1373
1374     if (!HIWORD(name))
1375         return GetExePtr(LOWORD(name));
1376
1377     len = strlen(name);
1378     if (!len)
1379         return 0;
1380
1381     lstrcpynA(tmpstr, name, sizeof(tmpstr));
1382
1383     /* If 'name' matches exactly the module name of a module:
1384      * Return its handle.
1385      */
1386     for (hModule = hFirstModule; hModule ; hModule = pModule->next)
1387     {
1388         pModule = NE_GetPtr( hModule );
1389         if (!pModule) break;
1390         if (pModule->flags & NE_FFLAGS_WIN32) continue;
1391
1392         name_table = (BYTE *)pModule + pModule->name_table;
1393         if ((*name_table == len) && !strncmp(name, name_table+1, len))
1394             return hModule;
1395     }
1396
1397     /* If uppercased 'name' matches exactly the module name of a module:
1398      * Return its handle
1399      */
1400     for (s = tmpstr; *s; s++)
1401         *s = toupper(*s);
1402
1403     for (hModule = hFirstModule; hModule ; hModule = pModule->next)
1404     {
1405         pModule = NE_GetPtr( hModule );
1406         if (!pModule) break;
1407         if (pModule->flags & NE_FFLAGS_WIN32) continue;
1408
1409         name_table = (BYTE *)pModule + pModule->name_table;
1410         /* FIXME: the lstrncmpiA is WRONG. It should not be case insensitive,
1411          * but case sensitive! (Unfortunately Winword 6 and subdlls have
1412          * lowercased module names, but try to load uppercase DLLs, so this
1413          * 'i' compare is just a quickfix until the loader handles that
1414          * correctly. -MM 990705
1415          */
1416         if ((*name_table == len) && !lstrncmpiA(tmpstr, name_table+1, len))
1417             return hModule;
1418     }
1419
1420     /* If the base filename of 'name' matches the base filename of the module
1421      * filename of some module (case-insensitive compare):
1422      * Return its handle.
1423      */
1424
1425     /* basename: search backwards in passed name to \ / or : */
1426     s = tmpstr + strlen(tmpstr);
1427     while (s > tmpstr)
1428     {
1429         if (s[-1]=='/' || s[-1]=='\\' || s[-1]==':')
1430                 break;
1431         s--;
1432     }
1433
1434     /* search this in loaded filename list */
1435     for (hModule = hFirstModule; hModule ; hModule = pModule->next)
1436     {
1437         char            *loadedfn;
1438         OFSTRUCT        *ofs;
1439
1440         pModule = NE_GetPtr( hModule );
1441         if (!pModule) break;
1442         if (!pModule->fileinfo) continue;
1443         if (pModule->flags & NE_FFLAGS_WIN32) continue;
1444
1445         ofs = (OFSTRUCT*)((BYTE *)pModule + pModule->fileinfo);
1446         loadedfn = ((char*)ofs->szPathName) + strlen(ofs->szPathName);
1447         /* basename: search backwards in pathname to \ / or : */
1448         while (loadedfn > (char*)ofs->szPathName)
1449         {
1450             if (loadedfn[-1]=='/' || loadedfn[-1]=='\\' || loadedfn[-1]==':')
1451                     break;
1452             loadedfn--;
1453         }
1454         /* case insensitive compare ... */
1455         if (!lstrcmpiA(loadedfn, s))
1456             return hModule;
1457     }
1458
1459     /* If the extension of 'name' is '.EXE' and the base filename of 'name'
1460      * matches the base filename of the module filename of some 32-bit module:
1461      * Return the corresponding 16-bit dummy module handle.
1462      */
1463     if (len >= 4 && !strcasecmp(name+len-4, ".EXE"))
1464     {
1465         HMODULE hModule = GetModuleHandleA( name );
1466         if ( hModule )
1467             return MapHModuleLS( hModule );
1468     }
1469
1470     if (!strcmp(tmpstr,"MSDOS"))
1471         return 1;
1472
1473     if (!strcmp(tmpstr,"TIMER"))
1474     {
1475         FIXME("Eh... Should return caller's code segment, expect crash\n");
1476         return 0;
1477     }
1478
1479     return 0;
1480 }
1481
1482 /**********************************************************************
1483  *          NE_GetModuleByFilename
1484  */
1485 static HMODULE16 NE_GetModuleByFilename( LPCSTR name )
1486 {
1487     HMODULE16   hModule;
1488     LPSTR       s, p;
1489     BYTE        len, *name_table;
1490     char        tmpstr[MAX_PATH];
1491     NE_MODULE *pModule;
1492
1493     lstrcpynA(tmpstr, name, sizeof(tmpstr));
1494
1495     /* If the base filename of 'name' matches the base filename of the module
1496      * filename of some module (case-insensitive compare):
1497      * Return its handle.
1498      */
1499
1500     /* basename: search backwards in passed name to \ / or : */
1501     s = tmpstr + strlen(tmpstr);
1502     while (s > tmpstr)
1503     {
1504         if (s[-1]=='/' || s[-1]=='\\' || s[-1]==':')
1505                 break;
1506         s--;
1507     }
1508
1509     /* search this in loaded filename list */
1510     for (hModule = hFirstModule; hModule ; hModule = pModule->next)
1511     {
1512         char            *loadedfn;
1513         OFSTRUCT        *ofs;
1514
1515         pModule = NE_GetPtr( hModule );
1516         if (!pModule) break;
1517         if (!pModule->fileinfo) continue;
1518         if (pModule->flags & NE_FFLAGS_WIN32) continue;
1519
1520         ofs = (OFSTRUCT*)((BYTE *)pModule + pModule->fileinfo);
1521         loadedfn = ((char*)ofs->szPathName) + strlen(ofs->szPathName);
1522         /* basename: search backwards in pathname to \ / or : */
1523         while (loadedfn > (char*)ofs->szPathName)
1524         {
1525             if (loadedfn[-1]=='/' || loadedfn[-1]=='\\' || loadedfn[-1]==':')
1526                     break;
1527             loadedfn--;
1528         }
1529         /* case insensitive compare ... */
1530         if (!lstrcmpiA(loadedfn, s))
1531             return hModule;
1532     }
1533
1534     /* If basename (without ext) matches the module name of a module:
1535      * Return its handle.
1536      */
1537
1538     if ( (p = strrchr( s, '.' )) != NULL ) *p = '\0';
1539     len = strlen(s);
1540
1541     for (hModule = hFirstModule; hModule ; hModule = pModule->next)
1542     {
1543         pModule = NE_GetPtr( hModule );
1544         if (!pModule) break;
1545         if (pModule->flags & NE_FFLAGS_WIN32) continue;
1546
1547         name_table = (BYTE *)pModule + pModule->name_table;
1548         if ((*name_table == len) && !lstrncmpiA(s, name_table+1, len))
1549             return hModule;
1550     }
1551
1552     return 0;
1553 }
1554
1555 /**********************************************************************
1556  *          ModuleFirst    (TOOLHELP.59)
1557  */
1558 BOOL16 WINAPI ModuleFirst16( MODULEENTRY *lpme )
1559 {
1560     lpme->wNext = hFirstModule;
1561     return ModuleNext16( lpme );
1562 }
1563
1564
1565 /**********************************************************************
1566  *          ModuleNext    (TOOLHELP.60)
1567  */
1568 BOOL16 WINAPI ModuleNext16( MODULEENTRY *lpme )
1569 {
1570     NE_MODULE *pModule;
1571     char *name;
1572
1573     if (!lpme->wNext) return FALSE;
1574     if (!(pModule = NE_GetPtr( lpme->wNext ))) return FALSE;
1575     name = (char *)pModule + pModule->name_table;
1576     memcpy( lpme->szModule, name + 1, min(*name, MAX_MODULE_NAME) );
1577     lpme->szModule[min(*name, MAX_MODULE_NAME)] = '\0';
1578     lpme->hModule = lpme->wNext;
1579     lpme->wcUsage = pModule->count;
1580     lstrcpynA( lpme->szExePath, NE_MODULE_NAME(pModule), sizeof(lpme->szExePath) );
1581     lpme->wNext = pModule->next;
1582     return TRUE;
1583 }
1584
1585
1586 /**********************************************************************
1587  *          ModuleFindName    (TOOLHELP.61)
1588  */
1589 BOOL16 WINAPI ModuleFindName16( MODULEENTRY *lpme, LPCSTR name )
1590 {
1591     lpme->wNext = GetModuleHandle16( name );
1592     return ModuleNext16( lpme );
1593 }
1594
1595
1596 /**********************************************************************
1597  *          ModuleFindHandle    (TOOLHELP.62)
1598  */
1599 BOOL16 WINAPI ModuleFindHandle16( MODULEENTRY *lpme, HMODULE16 hModule )
1600 {
1601     hModule = GetExePtr( hModule );
1602     lpme->wNext = hModule;
1603     return ModuleNext16( lpme );
1604 }
1605
1606
1607 /***************************************************************************
1608  *          IsRomModule16    (KERNEL.323)
1609  */
1610 BOOL16 WINAPI IsRomModule16( HMODULE16 unused )
1611 {
1612     return FALSE;
1613 }
1614
1615 /***************************************************************************
1616  *          IsRomFile16    (KERNEL.326)
1617  */
1618 BOOL16 WINAPI IsRomFile16( HFILE16 unused )
1619 {
1620     return FALSE;
1621 }
1622
1623 /***************************************************************************
1624  *              MapHModuleLS                    (KERNEL32.520)
1625  */
1626 HMODULE16 WINAPI MapHModuleLS(HMODULE hmod) {
1627         NE_MODULE       *pModule;
1628
1629         if (!hmod)
1630                 return ((TDB*)GlobalLock16(GetCurrentTask()))->hInstance;
1631         if (!HIWORD(hmod))
1632                 return hmod; /* we already have a 16 bit module handle */
1633         pModule = (NE_MODULE*)GlobalLock16(hFirstModule);
1634         while (pModule)  {
1635                 if (pModule->module32 == hmod)
1636                         return pModule->self;
1637                 pModule = (NE_MODULE*)GlobalLock16(pModule->next);
1638         }
1639         return 0;
1640 }
1641
1642 /***************************************************************************
1643  *              MapHModuleSL                    (KERNEL32.521)
1644  */
1645 HMODULE WINAPI MapHModuleSL(HMODULE16 hmod) {
1646         NE_MODULE       *pModule;
1647
1648         if (!hmod) {
1649                 TDB *pTask = (TDB*)GlobalLock16(GetCurrentTask());
1650
1651                 hmod = pTask->hModule;
1652         }
1653         pModule = (NE_MODULE*)GlobalLock16(hmod);
1654         if (    (pModule->magic!=IMAGE_OS2_SIGNATURE)   ||
1655                 !(pModule->flags & NE_FFLAGS_WIN32)
1656         )
1657                 return 0;
1658         return pModule->module32;
1659 }
1660
1661 /***************************************************************************
1662  *              MapHInstLS                      (KERNEL32.516)(KERNEL.472)
1663  */
1664 void WINAPI MapHInstLS( CONTEXT86 *context )
1665 {
1666         EAX_reg(context) = MapHModuleLS(EAX_reg(context));
1667 }
1668
1669 /***************************************************************************
1670  *              MapHInstSL                      (KERNEL32.518)(KERNEL.473)
1671  */
1672 void WINAPI MapHInstSL( CONTEXT86 *context )
1673 {
1674         EAX_reg(context) = MapHModuleSL(EAX_reg(context));
1675 }
1676
1677 /***************************************************************************
1678  *              MapHInstLS_PN                   (KERNEL32.517)
1679  */
1680 void WINAPI MapHInstLS_PN( CONTEXT86 *context )
1681 {
1682         if (EAX_reg(context))
1683             EAX_reg(context) = MapHModuleLS(EAX_reg(context));
1684 }
1685
1686 /***************************************************************************
1687  *              MapHInstSL_PN                   (KERNEL32.519)
1688  */
1689 void WINAPI MapHInstSL_PN( CONTEXT86 *context )
1690 {
1691         if (EAX_reg(context))
1692             EAX_reg(context) = MapHModuleSL(EAX_reg(context));
1693 }
1694