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 "peexe.h"
  18 #include "toolhelp.h"
  19 #include "file.h"
  20 #include "ldt.h"
  21 #include "callback.h"
  22 #include "heap.h"
  23 #include "task.h"
  24 #include "global.h"
  25 #include "process.h"
  26 #include "toolhelp.h"
  27 #include "snoop.h"
  28 #include "builtin16.h"
  29 #include "stackframe.h"
  30 #include "debugtools.h"
  31 #include "file.h"
  32 #include "loadorder.h"
  33 #include "elfdll.h"
  34 #include "toolhelp.h"
  35
  36 DEFAULT_DEBUG_CHANNEL(module)
  37
  38 #define hFirstModule (pThhook->hExeHead)
  39
  40 static NE_MODULE *pCachedModule = 0;  /* Module cached by NE_OpenFile */
  41
  42 static BOOL16 NE_FreeModule( HMODULE16 hModule, BOOL call_wep );
  43
  44 static HINSTANCE16 MODULE_LoadModule16( LPCSTR libname, BOOL implicit, BOOL lib_only );
  45
  46 /***********************************************************************
  47  *           NE_GetPtr
  48  */
  49 NE_MODULE *NE_GetPtr( HMODULE16 hModule )
  50 {
  51     return (NE_MODULE *)GlobalLock16( GetExePtr(hModule) );
  52 }
  53
  54
  55 /***********************************************************************
  56  *           NE_DumpModule
  57  */
  58 void NE_DumpModule( HMODULE16 hModule )
  59 {
  60     int i, ordinal;
  61     SEGTABLEENTRY *pSeg;
  62     BYTE *pstr;
  63     WORD *pword;
  64     NE_MODULE *pModule;
  65     ET_BUNDLE *bundle;
  66     ET_ENTRY *entry;
  67
  68     if (!(pModule = NE_GetPtr( hModule )))
  69     {
  70         MESSAGE( "**** %04x is not a module handle\n", hModule );
  71         return;
  72     }
  73
  74       /* Dump the module info */
  75     DPRINTF( "---\n" );
  76     DPRINTF( "Module %04x:\n", hModule );
  77     DPRINTF( "count=%d flags=%04x heap=%d stack=%d\n",
  78           pModule->count, pModule->flags,
  79           pModule->heap_size, pModule->stack_size );
  80     DPRINTF( "cs:ip=%04x:%04x ss:sp=%04x:%04x ds=%04x nb seg=%d modrefs=%d\n",
  81           pModule->cs, pModule->ip, pModule->ss, pModule->sp, pModule->dgroup,
  82           pModule->seg_count, pModule->modref_count );
  83     DPRINTF( "os_flags=%d swap_area=%d version=%04x\n",
  84           pModule->os_flags, pModule->min_swap_area,
  85           pModule->expected_version );
  86     if (pModule->flags & NE_FFLAGS_WIN32)
  87         DPRINTF( "PE module=%08x\n", pModule->module32 );
  88
  89       /* Dump the file info */
  90     DPRINTF( "---\n" );
  91     DPRINTF( "Filename: '%s'\n", NE_MODULE_NAME(pModule) );
  92
  93       /* Dump the segment table */
  94     DPRINTF( "---\n" );
  95     DPRINTF( "Segment table:\n" );
  96     pSeg = NE_SEG_TABLE( pModule );
  97     for (i = 0; i < pModule->seg_count; i++, pSeg++)
  98         DPRINTF( "%02x: pos=%d size=%d flags=%04x minsize=%d hSeg=%04x\n",
  99               i + 1, pSeg->filepos, pSeg->size, pSeg->flags,
 100               pSeg->minsize, pSeg->hSeg );
 101
 102       /* Dump the resource table */
 103     DPRINTF( "---\n" );
 104     DPRINTF( "Resource table:\n" );
 105     if (pModule->res_table)
 106     {
 107         pword = (WORD *)((BYTE *)pModule + pModule->res_table);
 108         DPRINTF( "Alignment: %d\n", *pword++ );
 109         while (*pword)
 110         {
 111             struct resource_typeinfo_s *ptr = (struct resource_typeinfo_s *)pword;
 112             struct resource_nameinfo_s *pname = (struct resource_nameinfo_s *)(ptr + 1);
 113             DPRINTF( "id=%04x count=%d\n", ptr->type_id, ptr->count );
 114             for (i = 0; i < ptr->count; i++, pname++)
 115                 DPRINTF( "offset=%d len=%d id=%04x\n",
 116                       pname->offset, pname->length, pname->id );
 117             pword = (WORD *)pname;
 118         }
 119     }
 120     else DPRINTF( "None\n" );
 121
 122       /* Dump the resident name table */
 123     DPRINTF( "---\n" );
 124     DPRINTF( "Resident-name table:\n" );
 125     pstr = (char *)pModule + pModule->name_table;
 126     while (*pstr)
 127     {
 128         DPRINTF( "%*.*s: %d\n", *pstr, *pstr, pstr + 1,
 129               *(WORD *)(pstr + *pstr + 1) );
 130         pstr += *pstr + 1 + sizeof(WORD);
 131     }
 132
 133       /* Dump the module reference table */
 134     DPRINTF( "---\n" );
 135     DPRINTF( "Module ref table:\n" );
 136     if (pModule->modref_table)
 137     {
 138         pword = (WORD *)((BYTE *)pModule + pModule->modref_table);
 139         for (i = 0; i < pModule->modref_count; i++, pword++)
 140         {
 141             char name[10];
 142             GetModuleName16( *pword, name, sizeof(name) );
 143             DPRINTF( "%d: %04x -> '%s'\n", i, *pword, name );
 144         }
 145     }
 146     else DPRINTF( "None\n" );
 147
 148       /* Dump the entry table */
 149     DPRINTF( "---\n" );
 150     DPRINTF( "Entry table:\n" );
 151     bundle = (ET_BUNDLE *)((BYTE *)pModule+pModule->entry_table);
 152     do {
 153         entry = (ET_ENTRY *)((BYTE *)bundle+6);
 154         DPRINTF( "Bundle %d-%d: %02x\n", bundle->first, bundle->last, entry->type);
 155         ordinal = bundle->first;
 156         while (ordinal < bundle->last)
 157         {
 158             if (entry->type == 0xff)
 159                 DPRINTF("%d: %02x:%04x (moveable)\n", ordinal++, entry->segnum, entry->offs);
 160             else
 161                 DPRINTF("%d: %02x:%04x (fixed)\n", ordinal++, entry->segnum, entry->offs);
 162             entry++;
 163     }
 164     } while ( (bundle->next)
 165            && (bundle = ((ET_BUNDLE *)((BYTE *)pModule + bundle->next))) );
 166
 167     /* Dump the non-resident names table */
 168     DPRINTF( "---\n" );
 169     DPRINTF( "Non-resident names table:\n" );
 170     if (pModule->nrname_handle)
 171     {
 172         pstr = (char *)GlobalLock16( pModule->nrname_handle );
 173         while (*pstr)
 174         {
 175             DPRINTF( "%*.*s: %d\n", *pstr, *pstr, pstr + 1,
 176                    *(WORD *)(pstr + *pstr + 1) );
 177             pstr += *pstr + 1 + sizeof(WORD);
 178         }
 179     }
 180     DPRINTF( "\n" );
 181 }
 182
 183
 184 /***********************************************************************
 185  *           NE_WalkModules
 186  *
 187  * Walk the module list and print the modules.
 188  */
 189 void NE_WalkModules(void)
 190 {
 191     HMODULE16 hModule = hFirstModule;
 192     MESSAGE( "Module Flags Name\n" );
 193     while (hModule)
 194     {
 195         NE_MODULE *pModule = NE_GetPtr( hModule );
 196         if (!pModule)
 197         {
 198             MESSAGE( "Bad module %04x in list\n", hModule );
 199             return;
 200         }
 201         MESSAGE( " %04x  %04x  %.*s\n", hModule, pModule->flags,
 202                  *((char *)pModule + pModule->name_table),
 203                  (char *)pModule + pModule->name_table + 1 );
 204         hModule = pModule->next;
 205     }
 206 }
 207
 208
 209 /**********************************************************************
 210  *           NE_RegisterModule
 211  */
 212 void NE_RegisterModule( NE_MODULE *pModule )
 213 {
 214     pModule->next = hFirstModule;
 215     hFirstModule = pModule->self;
 216 }
 217
 218
 219 /***********************************************************************
 220  *           NE_GetOrdinal
 221  *
 222  * Lookup the ordinal for a given name.
 223  */
 224 WORD NE_GetOrdinal( HMODULE16 hModule, const char *name )
 225 {
 226     unsigned char buffer[256], *cpnt;
 227     BYTE len;
 228     NE_MODULE *pModule;
 229
 230     if (!(pModule = NE_GetPtr( hModule ))) return 0;
 231     assert( !(pModule->flags & NE_FFLAGS_WIN32) );
 232
 233     TRACE("(%04x,'%s')\n", hModule, name );
 234
 235       /* First handle names of the form '#xxxx' */
 236
 237     if (name[0] == '#') return atoi( name + 1 );
 238
 239       /* Now copy and uppercase the string */
 240
 241     strcpy( buffer, name );
 242     CharUpperA( buffer );
 243     len = strlen( buffer );
 244
 245       /* First search the resident names */
 246
 247     cpnt = (char *)pModule + pModule->name_table;
 248
 249       /* Skip the first entry (module name) */
 250     cpnt += *cpnt + 1 + sizeof(WORD);
 251     while (*cpnt)
 252     {
 253         if (((BYTE)*cpnt == len) && !memcmp( cpnt+1, buffer, len ))
 254         {
 255             TRACE("  Found: ordinal=%d\n",
 256                             *(WORD *)(cpnt + *cpnt + 1) );
 257             return *(WORD *)(cpnt + *cpnt + 1);
 258         }
 259         cpnt += *cpnt + 1 + sizeof(WORD);
 260     }
 261
 262       /* Now search the non-resident names table */
 263
 264     if (!pModule->nrname_handle) return 0;  /* No non-resident table */
 265     cpnt = (char *)GlobalLock16( pModule->nrname_handle );
 266
 267       /* Skip the first entry (module description string) */
 268     cpnt += *cpnt + 1 + sizeof(WORD);
 269     while (*cpnt)
 270     {
 271         if (((BYTE)*cpnt == len) && !memcmp( cpnt+1, buffer, len ))
 272         {
 273             TRACE("  Found: ordinal=%d\n",
 274                             *(WORD *)(cpnt + *cpnt + 1) );
 275             return *(WORD *)(cpnt + *cpnt + 1);
 276         }
 277         cpnt += *cpnt + 1 + sizeof(WORD);
 278     }
 279     return 0;
 280 }
 281
 282
 283 /***********************************************************************
 284  *           NE_GetEntryPoint   (WPROCS.27)
 285  *
 286  * Return the entry point for a given ordinal.
 287  */
 288 FARPROC16 WINAPI WIN16_NE_GetEntryPoint( HMODULE16 hModule, WORD ordinal )
 289 {
 290     FARPROC16 ret = NE_GetEntryPointEx( hModule, ordinal, TRUE );
 291     CURRENT_STACK16->ecx = hModule; /* FIXME: might be incorrect value */
 292     return ret;
 293 }
 294 FARPROC16 WINAPI NE_GetEntryPoint( HMODULE16 hModule, WORD ordinal )
 295 {
 296     return NE_GetEntryPointEx( hModule, ordinal, TRUE );
 297 }
 298 FARPROC16 NE_GetEntryPointEx( HMODULE16 hModule, WORD ordinal, BOOL16 snoop )
 299 {
 300     NE_MODULE *pModule;
 301     WORD sel, offset, i;
 302
 303     ET_ENTRY *entry;
 304     ET_BUNDLE *bundle;
 305
 306     if (!(pModule = NE_GetPtr( hModule ))) return 0;
 307     assert( !(pModule->flags & NE_FFLAGS_WIN32) );
 308
 309     bundle = (ET_BUNDLE *)((BYTE *)pModule + pModule->entry_table);
 310     while ((ordinal < bundle->first + 1) || (ordinal > bundle->last))
 311     {
 312         if (!(bundle->next))
 313             return 0;
 314         bundle = (ET_BUNDLE *)((BYTE *)pModule + bundle->next);
 315     }
 316
 317     entry = (ET_ENTRY *)((BYTE *)bundle+6);
 318     for (i=0; i < (ordinal - bundle->first - 1); i++)
 319         entry++;
 320
 321     sel = entry->segnum;
 322     offset = entry->offs;
 323
 324     if (sel == 0xfe) sel = 0xffff;  /* constant entry */
 325     else sel = GlobalHandleToSel16(NE_SEG_TABLE(pModule)[sel-1].hSeg);
 326     if (sel==0xffff)
 327         return (FARPROC16)PTR_SEG_OFF_TO_SEGPTR( sel, offset );
 328     if (!snoop)
 329         return (FARPROC16)PTR_SEG_OFF_TO_SEGPTR( sel, offset );
 330     else
 331         return (FARPROC16)SNOOP16_GetProcAddress16(hModule,ordinal,(FARPROC16)PTR_SEG_OFF_TO_SEGPTR( sel, offset ));
 332 }
 333
 334
 335 /***********************************************************************
 336  *           NE_SetEntryPoint
 337  *
 338  * Change the value of an entry point. Use with caution!
 339  * It can only change the offset value, not the selector.
 340  */
 341 BOOL16 NE_SetEntryPoint( HMODULE16 hModule, WORD ordinal, WORD offset )
 342 {
 343     NE_MODULE *pModule;
 344     ET_ENTRY *entry;
 345     ET_BUNDLE *bundle;
 346     int i;
 347
 348     if (!(pModule = NE_GetPtr( hModule ))) return FALSE;
 349     assert( !(pModule->flags & NE_FFLAGS_WIN32) );
 350
 351     bundle = (ET_BUNDLE *)((BYTE *)pModule + pModule->entry_table);
 352     while ((ordinal < bundle->first + 1) || (ordinal > bundle->last))
 353         {
 354         bundle = (ET_BUNDLE *)((BYTE *)pModule + bundle->next);
 355         if (!(bundle->next))
 356             return 0;
 357     }
 358
 359     entry = (ET_ENTRY *)((BYTE *)bundle+6);
 360     for (i=0; i < (ordinal - bundle->first - 1); i++)
 361         entry++;
 362
 363     entry->offs = offset;
 364     return TRUE;
 365 }
 366
 367
 368 /***********************************************************************
 369  *           NE_OpenFile
 370  */
 371 HANDLE NE_OpenFile( NE_MODULE *pModule )
 372 {
 373     char *name;
 374
 375     static HANDLE cachedfd = -1;
 376
 377     TRACE("(%p) cache: mod=%p fd=%d\n",
 378            pModule, pCachedModule, cachedfd );
 379     if (pCachedModule == pModule) return cachedfd;
 380     CloseHandle( cachedfd );
 381     pCachedModule = pModule;
 382     name = NE_MODULE_NAME( pModule );
 383     if ((cachedfd = CreateFileA( name, GENERIC_READ, FILE_SHARE_READ,
 384                                    NULL, OPEN_EXISTING, 0, -1 )) == -1)
 385         MESSAGE( "Can't open file '%s' for module %04x\n", name, pModule->self );
 386     else
 387         /* FIXME: should not be necessary */
 388         cachedfd = ConvertToGlobalHandle(cachedfd);
 389     TRACE("opened '%s' -> %d\n",
 390                     name, cachedfd );
 391     return cachedfd;
 392 }
 393
 394
 395 /***********************************************************************
 396  *           NE_LoadExeHeader
 397  */
 398 static HMODULE16 NE_LoadExeHeader( HFILE16 hFile, OFSTRUCT *ofs )
 399 {
 400     IMAGE_DOS_HEADER mz_header;
 401     IMAGE_OS2_HEADER ne_header;
 402     int size;
 403     HMODULE16 hModule;
 404     NE_MODULE *pModule;
 405     BYTE *pData, *pTempEntryTable;
 406     char *buffer, *fastload = NULL;
 407     int fastload_offset = 0, fastload_length = 0;
 408     ET_ENTRY *entry;
 409     ET_BUNDLE *bundle, *oldbundle;
 410
 411   /* Read a block from either the file or the fast-load area. */
 412 #define READ(offset,size,buffer) \
 413        ((fastload && ((offset) >= fastload_offset) && \
 414          ((offset)+(size) <= fastload_offset+fastload_length)) ? \
 415         (memcpy( buffer, fastload+(offset)-fastload_offset, (size) ), TRUE) : \
 416         (_llseek16( hFile, (offset), SEEK_SET), \
 417          _hread16( hFile, (buffer), (size) ) == (size)))
 418
 419     _llseek16( hFile, 0, SEEK_SET );
 420     if ((_hread16(hFile,&mz_header,sizeof(mz_header)) != sizeof(mz_header)) ||
 421         (mz_header.e_magic != IMAGE_DOS_SIGNATURE))
 422         return (HMODULE16)11;  /* invalid exe */
 423
 424     _llseek16( hFile, mz_header.e_lfanew, SEEK_SET );
 425     if (_hread16( hFile, &ne_header, sizeof(ne_header) ) != sizeof(ne_header))
 426         return (HMODULE16)11;  /* invalid exe */
 427
 428     if (ne_header.ne_magic == IMAGE_NT_SIGNATURE) return (HMODULE16)21;  /* win32 exe */
 429     if (ne_header.ne_magic != IMAGE_OS2_SIGNATURE) return (HMODULE16)11;  /* invalid exe */
 430
 431     if (ne_header.ne_magic == IMAGE_OS2_SIGNATURE_LX) {
 432       MESSAGE("Sorry, this is an OS/2 linear executable (LX) file !\n");
 433       return (HMODULE16)12;
 434     }
 435
 436     /* We now have a valid NE header */
 437
 438     size = sizeof(NE_MODULE) +
 439              /* segment table */
 440            ne_header.n_segment_tab * sizeof(SEGTABLEENTRY) +
 441              /* resource table */
 442            ne_header.rname_tab_offset - ne_header.resource_tab_offset +
 443              /* resident names table */
 444            ne_header.moduleref_tab_offset - ne_header.rname_tab_offset +
 445              /* module ref table */
 446            ne_header.n_mod_ref_tab * sizeof(WORD) +
 447              /* imported names table */
 448            ne_header.entry_tab_offset - ne_header.iname_tab_offset +
 449              /* entry table length */
 450            ne_header.entry_tab_length +
 451              /* entry table extra conversion space */
 452            sizeof(ET_BUNDLE) +
 453            2 * (ne_header.entry_tab_length - ne_header.n_mov_entry_points*6) +
 454              /* loaded file info */
 455            sizeof(OFSTRUCT)-sizeof(ofs->szPathName)+strlen(ofs->szPathName)+1;
 456
 457     hModule = GlobalAlloc16( GMEM_FIXED | GMEM_ZEROINIT, size );
 458     if (!hModule) return (HMODULE16)11;  /* invalid exe */
 459     FarSetOwner16( hModule, hModule );
 460     pModule = (NE_MODULE *)GlobalLock16( hModule );
 461     memcpy( pModule, &ne_header, sizeof(ne_header) );
 462     pModule->count = 0;
 463     /* check *programs* for default minimal stack size */
 464     if ( (!(pModule->flags & NE_FFLAGS_LIBMODULE))
 465                 && (pModule->stack_size < 0x1400) )
 466                 pModule->stack_size = 0x1400;
 467     pModule->module32 = 0;
 468     pModule->self = hModule;
 469     pModule->self_loading_sel = 0;
 470     pData = (BYTE *)(pModule + 1);
 471
 472     /* Clear internal Wine flags in case they are set in the EXE file */
 473
 474     pModule->flags &= ~(NE_FFLAGS_BUILTIN | NE_FFLAGS_WIN32);
 475
 476     /* Read the fast-load area */
 477
 478     if (ne_header.additional_flags & NE_AFLAGS_FASTLOAD)
 479     {
 480         fastload_offset=ne_header.fastload_offset<<ne_header.align_shift_count;
 481         fastload_length=ne_header.fastload_length<<ne_header.align_shift_count;
 482         TRACE("Using fast-load area offset=%x len=%d\n",
 483                         fastload_offset, fastload_length );
 484         if ((fastload = HeapAlloc( SystemHeap, 0, fastload_length )) != NULL)
 485         {
 486             _llseek16( hFile, fastload_offset, SEEK_SET);
 487             if (_hread16(hFile, fastload, fastload_length) != fastload_length)
 488             {
 489                 HeapFree( SystemHeap, 0, fastload );
 490                 WARN("Error reading fast-load area!\n");
 491                 fastload = NULL;
 492             }
 493         }
 494     }
 495
 496     /* Get the segment table */
 497
 498     pModule->seg_table = (int)pData - (int)pModule;
 499     buffer = HeapAlloc( SystemHeap, 0, ne_header.n_segment_tab *
 500                                       sizeof(struct ne_segment_table_entry_s));
 501     if (buffer)
 502     {
 503         int i;
 504         struct ne_segment_table_entry_s *pSeg;
 505
 506         if (!READ( mz_header.e_lfanew + ne_header.segment_tab_offset,
 507              ne_header.n_segment_tab * sizeof(struct ne_segment_table_entry_s),
 508              buffer ))
 509         {
 510             HeapFree( SystemHeap, 0, buffer );
 511             if (fastload)
 512                 HeapFree( SystemHeap, 0, fastload );
 513             GlobalFree16( hModule );
 514             return (HMODULE16)11;  /* invalid exe */
 515         }
 516         pSeg = (struct ne_segment_table_entry_s *)buffer;
 517         for (i = ne_header.n_segment_tab; i > 0; i--, pSeg++)
 518         {
 519             memcpy( pData, pSeg, sizeof(*pSeg) );
 520             pData += sizeof(SEGTABLEENTRY);
 521         }
 522         HeapFree( SystemHeap, 0, buffer );
 523     }
 524     else
 525     {
 526         if (fastload)
 527             HeapFree( SystemHeap, 0, fastload );
 528         GlobalFree16( hModule );
 529         return (HMODULE16)11;  /* invalid exe */
 530     }
 531
 532     /* Get the resource table */
 533
 534     if (ne_header.resource_tab_offset < ne_header.rname_tab_offset)
 535     {
 536         pModule->res_table = (int)pData - (int)pModule;
 537         if (!READ(mz_header.e_lfanew + ne_header.resource_tab_offset,
 538                   ne_header.rname_tab_offset - ne_header.resource_tab_offset,
 539                   pData )) return (HMODULE16)11;  /* invalid exe */
 540         pData += ne_header.rname_tab_offset - ne_header.resource_tab_offset;
 541         NE_InitResourceHandler( hModule );
 542     }
 543     else pModule->res_table = 0;  /* No resource table */
 544
 545     /* Get the resident names table */
 546
 547     pModule->name_table = (int)pData - (int)pModule;
 548     if (!READ( mz_header.e_lfanew + ne_header.rname_tab_offset,
 549                ne_header.moduleref_tab_offset - ne_header.rname_tab_offset,
 550                pData ))
 551     {
 552         if (fastload)
 553             HeapFree( SystemHeap, 0, fastload );
 554         GlobalFree16( hModule );
 555         return (HMODULE16)11;  /* invalid exe */
 556     }
 557     pData += ne_header.moduleref_tab_offset - ne_header.rname_tab_offset;
 558
 559     /* Get the module references table */
 560
 561     if (ne_header.n_mod_ref_tab > 0)
 562     {
 563         pModule->modref_table = (int)pData - (int)pModule;
 564         if (!READ( mz_header.e_lfanew + ne_header.moduleref_tab_offset,
 565                   ne_header.n_mod_ref_tab * sizeof(WORD),
 566                   pData ))
 567         {
 568             if (fastload)
 569                 HeapFree( SystemHeap, 0, fastload );
 570             GlobalFree16( hModule );
 571             return (HMODULE16)11;  /* invalid exe */
 572         }
 573         pData += ne_header.n_mod_ref_tab * sizeof(WORD);
 574     }
 575     else pModule->modref_table = 0;  /* No module references */
 576
 577     /* Get the imported names table */
 578
 579     pModule->import_table = (int)pData - (int)pModule;
 580     if (!READ( mz_header.e_lfanew + ne_header.iname_tab_offset,
 581                ne_header.entry_tab_offset - ne_header.iname_tab_offset,
 582                pData ))
 583     {
 584         if (fastload)
 585             HeapFree( SystemHeap, 0, fastload );
 586         GlobalFree16( hModule );
 587         return (HMODULE16)11;  /* invalid exe */
 588     }
 589     pData += ne_header.entry_tab_offset - ne_header.iname_tab_offset;
 590
 591     /* Load entry table, convert it to the optimized version used by Windows */
 592
 593     if ((pTempEntryTable = HeapAlloc( SystemHeap, 0, ne_header.entry_tab_length)) != NULL)
 594     {
 595         BYTE nr_entries, type, *s;
 596
 597         TRACE("Converting entry table.\n");
 598     pModule->entry_table = (int)pData - (int)pModule;
 599     if (!READ( mz_header.e_lfanew + ne_header.entry_tab_offset,
 600                 ne_header.entry_tab_length, pTempEntryTable ))
 601     {
 602             HeapFree( SystemHeap, 0, pTempEntryTable );
 603             if (fastload)
 604                 HeapFree( SystemHeap, 0, fastload );
 605         GlobalFree16( hModule );
 606         return (HMODULE16)11;  /* invalid exe */
 607     }
 608
 609         s = pTempEntryTable;
 610         TRACE("entry table: offs %04x, len %04x, entries %d\n", ne_header.entry_tab_offset, ne_header.entry_tab_length, *s);
 611
 612         bundle = (ET_BUNDLE *)pData;
 613         TRACE("first bundle: %p\n", bundle);
 614         memset(bundle, 0, sizeof(ET_BUNDLE)); /* in case no entry table exists */
 615         entry = (ET_ENTRY *)((BYTE *)bundle+6);
 616
 617         while ((nr_entries = *s++))
 618         {
 619             if ((type = *s++))
 620             {
 621                 bundle->last += nr_entries;
 622                 if (type == 0xff)
 623                 while (nr_entries--)
 624                 {
 625                     entry->type   = type;
 626                     entry->flags  = *s++;
 627                     s += 2;
 628                     entry->segnum = *s++;
 629                     entry->offs   = *(WORD *)s; s += 2;
 630                     /*TRACE(module, "entry: %p, type: %d, flags: %d, segnum: %d, offs: %04x\n", entry, entry->type, entry->flags, entry->segnum, entry->offs);*/
 631                     entry++;
 632                 }
 633                 else
 634                 while (nr_entries--)
 635                 {
 636                     entry->type   = type;
 637                     entry->flags  = *s++;
 638                     entry->segnum = type;
 639                     entry->offs   = *(WORD *)s; s += 2;
 640                     /*TRACE(module, "entry: %p, type: %d, flags: %d, segnum: %d, offs: %04x\n", entry, entry->type, entry->flags, entry->segnum, entry->offs);*/
 641                     entry++;
 642                 }
 643             }
 644             else
 645             {
 646                 if (bundle->first == bundle->last)
 647                 {
 648                     bundle->first += nr_entries;
 649                     bundle->last += nr_entries;
 650                 }
 651                 else
 652                 {
 653                     oldbundle = bundle;
 654                     oldbundle->next = ((int)entry - (int)pModule);
 655                     bundle = (ET_BUNDLE *)entry;
 656                     TRACE("new bundle: %p\n", bundle);
 657                     bundle->first = bundle->last =
 658                         oldbundle->last + nr_entries;
 659                     bundle->next = 0;
 660                     (BYTE *)entry += sizeof(ET_BUNDLE);
 661                 }
 662             }
 663         }
 664         HeapFree( SystemHeap, 0, pTempEntryTable );
 665     }
 666     else
 667     {
 668         if (fastload)
 669             HeapFree( SystemHeap, 0, fastload );
 670         GlobalFree16( hModule );
 671         return (HMODULE16)11;  /* invalid exe */
 672     }
 673
 674     pData += ne_header.entry_tab_length + sizeof(ET_BUNDLE) +
 675              2 * (ne_header.entry_tab_length - ne_header.n_mov_entry_points*6);
 676
 677     if ((DWORD)entry > (DWORD)pData)
 678        ERR("converted entry table bigger than reserved space !!!\nentry: %p, pData: %p. Please report !\n", entry, pData);
 679
 680     /* Store the filename information */
 681
 682     pModule->fileinfo = (int)pData - (int)pModule;
 683     size = sizeof(OFSTRUCT)-sizeof(ofs->szPathName)+strlen(ofs->szPathName)+1;
 684     memcpy( pData, ofs, size );
 685     ((OFSTRUCT *)pData)->cBytes = size - 1;
 686     pData += size;
 687
 688     /* Free the fast-load area */
 689
 690 #undef READ
 691     if (fastload)
 692         HeapFree( SystemHeap, 0, fastload );
 693
 694     /* Get the non-resident names table */
 695
 696     if (ne_header.nrname_tab_length)
 697     {
 698         pModule->nrname_handle = GLOBAL_Alloc( 0, ne_header.nrname_tab_length,
 699                                                hModule, FALSE, FALSE, FALSE );
 700         if (!pModule->nrname_handle)
 701         {
 702             GlobalFree16( hModule );
 703             return (HMODULE16)11;  /* invalid exe */
 704         }
 705         buffer = GlobalLock16( pModule->nrname_handle );
 706         _llseek16( hFile, ne_header.nrname_tab_offset, SEEK_SET );
 707         if (_hread16( hFile, buffer, ne_header.nrname_tab_length )
 708               != ne_header.nrname_tab_length)
 709         {
 710             GlobalFree16( pModule->nrname_handle );
 711             GlobalFree16( hModule );
 712             return (HMODULE16)11;  /* invalid exe */
 713         }
 714     }
 715     else pModule->nrname_handle = 0;
 716
 717     /* Allocate a segment for the implicitly-loaded DLLs */
 718
 719     if (pModule->modref_count)
 720     {
 721         pModule->dlls_to_init = GLOBAL_Alloc(GMEM_ZEROINIT,
 722                                     (pModule->modref_count+1)*sizeof(HMODULE16),
 723                                     hModule, FALSE, FALSE, FALSE );
 724         if (!pModule->dlls_to_init)
 725         {
 726             if (pModule->nrname_handle) GlobalFree16( pModule->nrname_handle );
 727             GlobalFree16( hModule );
 728             return (HMODULE16)11;  /* invalid exe */
 729         }
 730     }
 731     else pModule->dlls_to_init = 0;
 732
 733     NE_RegisterModule( pModule );
 734     SNOOP16_RegisterDLL(pModule,ofs->szPathName);
 735
 736     return hModule;
 737 }
 738
 739
 740 /***********************************************************************
 741  *           NE_LoadDLLs
 742  *
 743  * Load all DLLs implicitly linked to a module.
 744  */
 745 static BOOL NE_LoadDLLs( NE_MODULE *pModule )
 746 {
 747     int i;
 748     WORD *pModRef = (WORD *)((char *)pModule + pModule->modref_table);
 749     WORD *pDLLs = (WORD *)GlobalLock16( pModule->dlls_to_init );
 750
 751     for (i = 0; i < pModule->modref_count; i++, pModRef++)
 752     {
 753         char buffer[260];
 754         BYTE *pstr = (BYTE *)pModule + pModule->import_table + *pModRef;
 755         memcpy( buffer, pstr + 1, *pstr );
 756        *(buffer + *pstr) = 0; /* terminate it */
 757
 758         TRACE("Loading '%s'\n", buffer );
 759         if (!(*pModRef = GetModuleHandle16( buffer )))
 760         {
 761             /* If the DLL is not loaded yet, load it and store */
 762             /* its handle in the list of DLLs to initialize.   */
 763             HMODULE16 hDLL;
 764
 765             if ((hDLL = MODULE_LoadModule16( buffer, TRUE, TRUE )) < 32)
 766             {
 767                 /* FIXME: cleanup what was done */
 768
 769                 MESSAGE( "Could not load '%s' required by '%.*s', error=%d\n",
 770                      buffer, *((BYTE*)pModule + pModule->name_table),
 771                      (char *)pModule + pModule->name_table + 1, hDLL );
 772                 return FALSE;
 773             }
 774             *pModRef = GetExePtr( hDLL );
 775             *pDLLs++ = *pModRef;
 776         }
 777         else  /* Increment the reference count of the DLL */
 778         {
 779             NE_MODULE *pOldDLL;
 780
 781             pOldDLL = NE_GetPtr( *pModRef );
 782             if (pOldDLL) pOldDLL->count++;
 783         }
 784     }
 785     return TRUE;
 786 }
 787
 788
 789 /**********************************************************************
 790  *          NE_DoLoadModule
 791  *
 792  * Load first instance of NE module from file.
 793  *
 794  * pModule must point to a module structure prepared by NE_LoadExeHeader.
 795  * This routine must never be called twice on a module.
 796  *
 797  */
 798 static HINSTANCE16 NE_DoLoadModule( NE_MODULE *pModule )
 799 {
 800     HINSTANCE16 hInstance;
 801
 802     /* Allocate the segments for this module */
 803
 804     if (!NE_CreateSegments( pModule ) ||
 805         !(hInstance = NE_CreateInstance( pModule, NULL, FALSE )))
 806         return 8;  /* Insufficient memory */
 807
 808     /* Load the referenced DLLs */
 809
 810     if (!NE_LoadDLLs( pModule ))
 811         return 2;
 812
 813     /* Load the segments */
 814
 815     NE_LoadAllSegments( pModule );
 816
 817     /* Fixup the functions prologs */
 818
 819     NE_FixupPrologs( pModule );
 820
 821     /* Make sure the usage count is 1 on the first loading of  */
 822     /* the module, even if it contains circular DLL references */
 823
 824     pModule->count = 1;
 825
 826     return hInstance;
 827 }
 828
 829 /**********************************************************************
 830  *          NE_LoadModule
 831  *
 832  * Load first instance of NE module. (Note: caller is responsible for
 833  * ensuring the module isn't already loaded!)
 834  *
 835  * If the module turns out to be an executable module, only a
 836  * handle to a module stub is returned; this needs to be initialized
 837  * by calling NE_DoLoadModule later, in the context of the newly
 838  * created process.
 839  *
 840  * If lib_only is TRUE, however, the module is perforce treated
 841  * like a DLL module, even if it is an executable module.
 842  *
 843  */
 844 HINSTANCE16 NE_LoadModule( LPCSTR name, BOOL implicit, BOOL lib_only )
 845 {
 846     NE_MODULE *pModule;
 847     HMODULE16 hModule;
 848     HINSTANCE16 hInstance;
 849     HFILE16 hFile;
 850     OFSTRUCT ofs;
 851
 852     if ((hFile = OpenFile16( name, &ofs, OF_READ )) == HFILE_ERROR16)
 853     {
 854         char    buffer[260];
 855
 856         if(implicit)
 857         {
 858             /* 4 == strlen(".dll") */
 859             strncpy(buffer, name, sizeof(buffer) - 1 - 4);
 860             strcat(buffer, ".dll");
 861             if ((hFile = OpenFile16( buffer, &ofs, OF_READ )) == HFILE_ERROR16)
 862                 return 2;  /* File not found */
 863         }
 864     }
 865
 866     hModule = NE_LoadExeHeader( hFile, &ofs );
 867     _lclose16( hFile );
 868
 869     if (hModule < 32) return hModule;
 870     pModule = NE_GetPtr( hModule );
 871     if ( !pModule ) return hModule;
 872
 873     if ( !lib_only && !( pModule->flags & NE_FFLAGS_LIBMODULE ) )
 874         return hModule;
 875
 876     hInstance = NE_DoLoadModule( pModule );
 877     if ( hInstance < 32 )
 878     {
 879         /* cleanup ... */
 880         NE_FreeModule( hModule, 0 );
 881     }
 882
 883     return hInstance;
 884 }
 885
 886
 887 /**********************************************************************
 888  *          MODULE_LoadModule16
 889  *
 890  * Load a NE module in the order of the loadorder specification.
 891  * The caller is responsible that the module is not loaded already.
 892  *
 893  */
 894 static HINSTANCE16 MODULE_LoadModule16( LPCSTR libname, BOOL implicit, BOOL lib_only )
 895 {
 896         HINSTANCE16 hinst;
 897         int i;
 898         module_loadorder_t *plo;
 899
 900         plo = MODULE_GetLoadOrder(libname);
 901
 902         for(i = 0; i < MODULE_LOADORDER_NTYPES; i++)
 903         {
 904                 switch(plo->loadorder[i])
 905                 {
 906                 case MODULE_LOADORDER_DLL:
 907                         TRACE("Trying native dll '%s'\n", libname);
 908                         hinst = NE_LoadModule(libname, implicit, lib_only);
 909                         break;
 910
 911                 case MODULE_LOADORDER_ELFDLL:
 912                         TRACE("Trying elfdll '%s'\n", libname);
 913                         hinst = ELFDLL_LoadModule16(libname, implicit);
 914                         break;
 915
 916                 case MODULE_LOADORDER_BI:
 917                         TRACE("Trying built-in '%s'\n", libname);
 918                         hinst = BUILTIN_LoadModule(libname, TRUE);
 919                         break;
 920
 921                 default:
 922                         ERR("Got invalid loadorder type %d (%s index %d)\n", plo->loadorder[i], plo->modulename, i);
 923                 /* Fall through */
 924
 925                 case MODULE_LOADORDER_SO:       /* This is not supported for NE modules */
 926                 case MODULE_LOADORDER_INVALID:  /* We ignore this as it is an empty entry */
 927                         hinst = 2;
 928                         break;
 929                 }
 930
 931                 if(hinst >= 32)
 932                 {
 933                         if(!implicit)
 934                         {
 935                                 HMODULE16 hModule;
 936                                 NE_MODULE *pModule;
 937
 938                                 hModule = GetModuleHandle16(libname);
 939                                 if(!hModule)
 940                                 {
 941                                         ERR("Serious trouble. Just loaded module '%s' (hinst=0x%04x), but can't get module handle\n",
 942                                                 libname, hinst);
 943                                         return 6;       /* ERROR_INVALID_HANDLE seems most appropriate */
 944                                 }
 945
 946                                 pModule = NE_GetPtr(hModule);
 947                                 if(!pModule)
 948                                 {
 949                                         ERR("Serious trouble. Just loaded module '%s' (hinst=0x%04x), but can't get NE_MODULE pointer\n",
 950                                                 libname, hinst);
 951                                         return 6;       /* ERROR_INVALID_HANDLE seems most appropriate */
 952                                 }
 953
 954                                 TRACE("Loaded module '%s' at 0x%04x, \n", libname, hinst);
 955
 956                                 /*
 957                                  * Call initialization routines for all loaded DLLs. Note that
 958                                  * when we load implicitly linked DLLs this will be done by InitTask().
 959                                  */
 960                                 if(pModule->flags & NE_FFLAGS_LIBMODULE)
 961                                         NE_InitializeDLLs(hModule);
 962                         }
 963                         return hinst;
 964                 }
 965
 966                 if(hinst != 2)
 967                 {
 968                         /* We quit searching when we get another error than 'File not found' */
 969                         break;
 970                 }
 971         }
 972         return hinst;   /* The last error that occured */
 973 }
 974
 975
 976 /**********************************************************************
 977  *          LoadModule16    (KERNEL.45)
 978  */
 979 HINSTANCE16 WINAPI LoadModule16( LPCSTR name, LPVOID paramBlock )
 980 {
 981     BOOL lib_only = !paramBlock || (paramBlock == (LPVOID)-1);
 982     LOADPARAMS16 *params;
 983     LPSTR cmd_line, new_cmd_line;
 984     LPCVOID env = NULL;
 985     STARTUPINFOA startup;
 986     PROCESS_INFORMATION info;
 987     HMODULE16 hModule;
 988     NE_MODULE *pModule;
 989     PDB *pdb;
 990
 991     /* Load module */
 992
 993     if ( (hModule = GetModuleHandle16(name) ) != 0 )
 994     {
 995         /* Special case: second instance of an already loaded NE module */
 996
 997         if ( !( pModule = NE_GetPtr( hModule ) ) ) return (HINSTANCE16)11;
 998         if ( pModule->module32 ) return (HINSTANCE16)21;
 999
1000         /* Increment refcount */
1001
1002         pModule->count++;
1003
1004         /* If library module, we just retrieve the instance handle */
1005
1006         if ( ( pModule->flags & NE_FFLAGS_LIBMODULE ) || lib_only )
1007             return NE_CreateInstance( pModule, NULL, TRUE );
1008     }
1009     else
1010     {
1011         /* Main case: load first instance of NE module */
1012
1013         if ( (hModule = MODULE_LoadModule16( name, FALSE, lib_only )) < 32 )
1014             return hModule;
1015
1016         if ( !(pModule = NE_GetPtr( hModule )) )
1017             return (HINSTANCE16)11;
1018
1019         /* If library module, we're finished */
1020
1021         if ( ( pModule->flags & NE_FFLAGS_LIBMODULE ) || lib_only )
1022             return hModule;
1023     }
1024
1025
1026     /*
1027      *  At this point, we need to create a new process.
1028      *
1029      *  pModule points either to an already loaded module, whose refcount
1030      *  has already been incremented (to avoid having the module vanish
1031      *  in the meantime), or else to a stub module which contains only header
1032      *  information.
1033      *
1034      *  All remaining initialization (really loading the module in the second
1035      *  case, and creating the new instance in both cases) are to be done in
1036      *  the context of the new process. This happens in the NE_InitProcess
1037      *  routine, which will be called from the 32-bit process initialization.
1038      */
1039
1040
1041     params = (LOADPARAMS16 *)paramBlock;
1042     cmd_line = (LPSTR)PTR_SEG_TO_LIN( params->cmdLine );
1043     if (!cmd_line) cmd_line = "";
1044     else if (*cmd_line) cmd_line++;  /* skip the length byte */
1045
1046     if (!(new_cmd_line = HeapAlloc( GetProcessHeap(), 0,
1047                                     strlen(cmd_line)+strlen(name)+2 )))
1048         return 0;
1049     strcpy( new_cmd_line, name );
1050     strcat( new_cmd_line, " " );
1051     strcat( new_cmd_line, cmd_line );
1052
1053     if (params->hEnvironment) env = GlobalLock16( params->hEnvironment );
1054
1055     memset( &info, '\0', sizeof(info) );
1056     memset( &startup, '\0', sizeof(startup) );
1057     startup.cb = sizeof(startup);
1058     if (params->showCmd)
1059     {
1060         startup.dwFlags = STARTF_USESHOWWINDOW;
1061         startup.wShowWindow = ((UINT16 *)PTR_SEG_TO_LIN(params->showCmd))[1];
1062     }
1063
1064     SYSLEVEL_ReleaseWin16Lock();
1065     pdb = PROCESS_Create( pModule, new_cmd_line, env,
1066                           NULL, NULL, TRUE, 0, &startup, &info );
1067     SYSLEVEL_RestoreWin16Lock();
1068
1069     CloseHandle( info.hThread );
1070     CloseHandle( info.hProcess );
1071
1072     if (params->hEnvironment) GlobalUnlock16( params->hEnvironment );
1073     HeapFree( GetProcessHeap(), 0, new_cmd_line );
1074
1075     return GetProcessDword( info.dwProcessId, GPD_HINSTANCE16 );
1076 }
1077
1078 /**********************************************************************
1079  *          NE_CreateProcess
1080  */
1081 BOOL NE_CreateProcess( HFILE hFile, OFSTRUCT *ofs, LPCSTR cmd_line, LPCSTR env,
1082                        LPSECURITY_ATTRIBUTES psa, LPSECURITY_ATTRIBUTES tsa,
1083                        BOOL inherit, DWORD flags, LPSTARTUPINFOA startup,
1084                        LPPROCESS_INFORMATION info )
1085 {
1086     HMODULE16 hModule;
1087     NE_MODULE *pModule;
1088     HFILE16 hFile16;
1089
1090     SYSLEVEL_EnterWin16Lock();
1091
1092     /* Special case: second instance of an already loaded NE module */
1093
1094     if ( ( hModule = GetModuleHandle16( ofs->szPathName ) ) != 0 )
1095     {
1096         if (   !( pModule = NE_GetPtr( hModule) )
1097             ||  ( pModule->flags & NE_FFLAGS_LIBMODULE )
1098             ||  pModule->module32 )
1099         {
1100             SetLastError( ERROR_BAD_FORMAT );
1101             goto error;
1102         }
1103
1104         pModule->count++;
1105     }
1106
1107     /* Main case: load first instance of NE module */
1108     else
1109     {
1110         /* If we didn't get a file handle, return */
1111
1112         if ( hFile == HFILE_ERROR )
1113             goto error;
1114
1115         /* Allocate temporary HFILE16 for NE_LoadFileModule */
1116
1117         if (!DuplicateHandle( GetCurrentProcess(), hFile,
1118                               GetCurrentProcess(), &hFile,
1119                               0, FALSE, DUPLICATE_SAME_ACCESS ))
1120         {
1121             SetLastError( ERROR_INVALID_HANDLE );
1122             goto error;
1123         }
1124         hFile16 = FILE_AllocDosHandle( hFile );
1125
1126         /* Load module */
1127
1128         hModule = NE_LoadExeHeader( hFile16, ofs );
1129         _lclose16( hFile16 );
1130
1131         if ( hModule < 32 )
1132         {
1133             SetLastError( hModule );
1134             goto error;
1135         }
1136
1137         if (   !( pModule = NE_GetPtr( hModule ) )
1138             ||  ( pModule->flags & NE_FFLAGS_LIBMODULE) )
1139         {
1140             GlobalFreeAll16( hModule );
1141             SetLastError( ERROR_BAD_FORMAT );
1142             goto error;
1143         }
1144     }
1145
1146     SYSLEVEL_LeaveWin16Lock();
1147
1148     if ( !PROCESS_Create( pModule, cmd_line, env,
1149                           psa, tsa, inherit, flags, startup, info ) )
1150         return FALSE;
1151
1152     return TRUE;
1153
1154  error:
1155     SYSLEVEL_LeaveWin16Lock();
1156     return FALSE;
1157 }
1158
1159 /**********************************************************************
1160  *          NE_InitProcess
1161  */
1162 BOOL NE_InitProcess( NE_MODULE *pModule  )
1163 {
1164     HINSTANCE16 hInstance, hPrevInstance;
1165     BOOL retv = TRUE;
1166
1167     SEGTABLEENTRY *pSegTable = NE_SEG_TABLE( pModule );
1168     WORD sp;
1169     TDB *pTask;
1170
1171     SYSLEVEL_EnterWin16Lock();
1172
1173     if ( pModule->count > 0 )
1174     {
1175         /* Second instance of an already loaded NE module */
1176         /* Note that the refcount was already incremented by the parent */
1177
1178         hInstance = NE_CreateInstance( pModule, &hPrevInstance, FALSE );
1179         if ( hInstance != hPrevInstance )  /* not a library */
1180             NE_LoadSegment( pModule, pModule->dgroup );
1181     }
1182     else
1183     {
1184         /* Load first instance of NE module */
1185
1186         pModule->flags |= NE_FFLAGS_GUI;  /* FIXME: is this necessary? */
1187
1188         hInstance = NE_DoLoadModule( pModule );
1189         hPrevInstance = 0;
1190     }
1191
1192     if ( hInstance < 32 )
1193     {
1194         SYSLEVEL_LeaveWin16Lock();
1195
1196         SetLastError( hInstance );
1197         return FALSE;
1198     }
1199
1200     /* Enter instance handles into task struct */
1201
1202     pTask = (TDB *)GlobalLock16( GetCurrentTask() );
1203     pTask->hInstance = hInstance;
1204     pTask->hPrevInstance = hPrevInstance;
1205
1206     /* Use DGROUP for 16-bit stack */
1207
1208     if (!(sp = pModule->sp))
1209         sp = pSegTable[pModule->ss-1].minsize + pModule->stack_size;
1210     sp &= ~1;  sp -= sizeof(STACK16FRAME);
1211     pTask->teb->cur_stack = PTR_SEG_OFF_TO_SEGPTR( hInstance, sp );
1212
1213     SYSLEVEL_LeaveWin16Lock();
1214
1215     return retv;
1216 }
1217
1218 /***********************************************************************
1219  *           LoadLibrary16   (KERNEL.95)
1220  *
1221  * In Win95 LoadLibrary16("c:/junkname/user.foo") returns the HINSTANCE
1222  * to user.exe. As GetModuleHandle as of 990425 explicitly asks _not_
1223  * to change its handling of extensions, we have to try a stripped down
1224  * libname here too (bon 990425)
1225  */
1226 HINSTANCE16 WINAPI LoadLibrary16( LPCSTR libname )
1227 {
1228     char strippedname[256];
1229     char *dirsep1,*dirsep2;
1230     HINSTANCE16 ret;
1231
1232     dirsep1=strrchr(libname,'\\');
1233     dirsep2=strrchr(libname,'/');
1234     dirsep1=MAX(dirsep1,dirsep2);
1235     if (!dirsep1)
1236       dirsep1 =(LPSTR)libname;
1237     else
1238       dirsep1++;
1239     lstrcpynA(strippedname,dirsep1,256);
1240     dirsep1=strchr(strippedname,'.');
1241     if (dirsep1)
1242       *dirsep1=0;
1243
1244     TRACE("looking for (%p) %s and %s \n",
1245            libname, libname,strippedname );
1246
1247     /* Load library module */
1248     ret= LoadModule16( strippedname, (LPVOID)-1 );
1249     if (ret > HINSTANCE_ERROR)
1250       return ret;
1251     return LoadModule16(libname, (LPVOID)-1 );
1252 }
1253
1254
1255 /**********************************************************************
1256  *          MODULE_CallWEP
1257  *
1258  * Call a DLL's WEP, allowing it to shut down.
1259  * FIXME: we always pass the WEP WEP_FREE_DLL, never WEP_SYSTEM_EXIT
1260  */
1261 static BOOL16 MODULE_CallWEP( HMODULE16 hModule )
1262 {
1263     FARPROC16 WEP = (FARPROC16)0;
1264     WORD ordinal = NE_GetOrdinal( hModule, "WEP" );
1265
1266     if (ordinal) WEP = NE_GetEntryPoint( hModule, ordinal );
1267     if (!WEP)
1268     {
1269         WARN("module %04x doesn't have a WEP\n", hModule );
1270         return FALSE;
1271     }
1272     return Callbacks->CallWindowsExitProc( WEP, WEP_FREE_DLL );
1273 }
1274
1275
1276 /**********************************************************************
1277  *          NE_FreeModule
1278  *
1279  * Implementation of FreeModule16().
1280  */
1281 static BOOL16 NE_FreeModule( HMODULE16 hModule, BOOL call_wep )
1282 {
1283     HMODULE16 *hPrevModule;
1284     NE_MODULE *pModule;
1285     HMODULE16 *pModRef;
1286     int i;
1287
1288     if (!(pModule = NE_GetPtr( hModule ))) return FALSE;
1289     hModule = pModule->self;
1290
1291     TRACE("%04x count %d\n", hModule, pModule->count );
1292
1293     if (((INT16)(--pModule->count)) > 0 ) return TRUE;
1294     else pModule->count = 0;
1295
1296     if (pModule->flags & NE_FFLAGS_BUILTIN)
1297         return FALSE;  /* Can't free built-in module */
1298
1299     if (call_wep && !(pModule->flags & NE_FFLAGS_WIN32))
1300     {
1301         if (pModule->flags & NE_FFLAGS_LIBMODULE)
1302         {
1303             MODULE_CallWEP( hModule );
1304
1305             /* Free the objects owned by the DLL module */
1306             TASK_CallTaskSignalProc( USIG16_DLL_UNLOAD, hModule );
1307             PROCESS_CallUserSignalProc( USIG_DLL_UNLOAD_WIN16, hModule );
1308         }
1309         else
1310             call_wep = FALSE;  /* We are freeing a task -> no more WEPs */
1311     }
1312
1313
1314     /* Clear magic number just in case */
1315
1316     pModule->magic = pModule->self = 0;
1317
1318       /* Remove it from the linked list */
1319
1320     hPrevModule = &hFirstModule;
1321     while (*hPrevModule && (*hPrevModule != hModule))
1322     {
1323         hPrevModule = &(NE_GetPtr( *hPrevModule ))->next;
1324     }
1325     if (*hPrevModule) *hPrevModule = pModule->next;
1326
1327     /* Free the referenced modules */
1328
1329     pModRef = (HMODULE16*)NE_MODULE_TABLE( pModule );
1330     for (i = 0; i < pModule->modref_count; i++, pModRef++)
1331     {
1332         NE_FreeModule( *pModRef, call_wep );
1333     }
1334
1335     /* Free the module storage */
1336
1337     GlobalFreeAll16( hModule );
1338
1339     /* Remove module from cache */
1340
1341     if (pCachedModule == pModule) pCachedModule = NULL;
1342     return TRUE;
1343 }
1344
1345
1346 /**********************************************************************
1347  *          FreeModule16    (KERNEL.46)
1348  */
1349 BOOL16 WINAPI FreeModule16( HMODULE16 hModule )
1350 {
1351     return NE_FreeModule( hModule, TRUE );
1352 }
1353
1354
1355 /***********************************************************************
1356  *           FreeLibrary16   (KERNEL.96)
1357  */
1358 void WINAPI FreeLibrary16( HINSTANCE16 handle )
1359 {
1360     TRACE("%04x\n", handle );
1361     FreeModule16( handle );
1362 }
1363
1364
1365 /**********************************************************************
1366  *          GetModuleName    (KERNEL.27)
1367  */
1368 BOOL16 WINAPI GetModuleName16( HINSTANCE16 hinst, LPSTR buf, INT16 count )
1369 {
1370     NE_MODULE *pModule;
1371     BYTE *p;
1372
1373     if (!(pModule = NE_GetPtr( hinst ))) return FALSE;
1374     p = (BYTE *)pModule + pModule->name_table;
1375     if (count > *p) count = *p + 1;
1376     if (count > 0)
1377     {
1378         memcpy( buf, p + 1, count - 1 );
1379         buf[count-1] = '\0';
1380     }
1381     return TRUE;
1382 }
1383
1384
1385 /**********************************************************************
1386  *          GetModuleUsage    (KERNEL.48)
1387  */
1388 INT16 WINAPI GetModuleUsage16( HINSTANCE16 hModule )
1389 {
1390     NE_MODULE *pModule = NE_GetPtr( hModule );
1391     return pModule ? pModule->count : 0;
1392 }
1393
1394
1395 /**********************************************************************
1396  *          GetExpWinVer    (KERNEL.167)
1397  */
1398 WORD WINAPI GetExpWinVer16( HMODULE16 hModule )
1399 {
1400     NE_MODULE *pModule = NE_GetPtr( hModule );
1401     if ( !pModule ) return 0;
1402
1403     /*
1404      * For built-in modules, fake the expected version the module should
1405      * have according to the Windows version emulated by Wine
1406      *
1407      * FIXME: Should we really do this for Win32 dummy modules as well?
1408      */
1409     if (    (pModule->flags & NE_FFLAGS_BUILTIN)
1410          || (pModule->flags & NE_FFLAGS_WIN32) )
1411     {
1412         OSVERSIONINFOA versionInfo;
1413         versionInfo.dwOSVersionInfoSize = sizeof(versionInfo);
1414
1415         if ( GetVersionExA( &versionInfo ) )
1416             return   (versionInfo.dwMajorVersion & 0xff) << 8
1417                    | (versionInfo.dwMinorVersion & 0xff);
1418     }
1419
1420     return pModule->expected_version;
1421 }
1422
1423
1424 /**********************************************************************
1425  *          GetModuleFileName16    (KERNEL.49)
1426  */
1427 INT16 WINAPI GetModuleFileName16( HINSTANCE16 hModule, LPSTR lpFileName,
1428                                   INT16 nSize )
1429 {
1430     NE_MODULE *pModule;
1431
1432     if (!hModule) hModule = GetCurrentTask();
1433     if (!(pModule = NE_GetPtr( hModule ))) return 0;
1434     lstrcpynA( lpFileName, NE_MODULE_NAME(pModule), nSize );
1435     TRACE("%s\n", lpFileName );
1436     return strlen(lpFileName);
1437 }
1438
1439
1440 /**********************************************************************
1441  *          GetModuleHandle16    (KERNEL.47)
1442  *
1443  * Find a module from a module name.
1444  *
1445  * NOTE: The current implementation works the same way the Windows 95 one
1446  *       does. Do not try to 'fix' it, fix the callers.
1447  *       + It does not do ANY extension handling (except that strange .EXE bit)!
1448  *       + It does not care about paths, just about basenames. (same as Windows)
1449  *
1450  * RETURNS
1451  *   LOWORD:
1452  *      the win16 module handle if found
1453  *      0 if not
1454  *   HIWORD (undocumented, see "Undocumented Windows", chapter 5):
1455  *      Always hFirstModule
1456  */
1457 DWORD WINAPI WIN16_GetModuleHandle( SEGPTR name )
1458 {
1459     if (HIWORD(name) == 0)
1460         return MAKELONG(GetExePtr( (HINSTANCE16)name), hFirstModule );
1461     return MAKELONG(GetModuleHandle16( PTR_SEG_TO_LIN(name)), hFirstModule );
1462 }
1463
1464 HMODULE16 WINAPI GetModuleHandle16( LPCSTR name )
1465 {
1466     HMODULE16   hModule = hFirstModule;
1467     LPSTR       s;
1468     BYTE        len, *name_table;
1469     char        tmpstr[128];
1470     NE_MODULE *pModule;
1471
1472     TRACE("(%s)\n", name);
1473
1474     if (!HIWORD(name))
1475         return GetExePtr(LOWORD(name));
1476
1477     len = strlen(name);
1478     if (!len)
1479         return 0;
1480
1481     strncpy(tmpstr, name, sizeof(tmpstr));
1482     tmpstr[sizeof(tmpstr)-1] = '\0';
1483
1484     /* If 'name' matches exactly the module name of a module:
1485      * Return its handle.
1486      */
1487     for (hModule = hFirstModule; hModule ; hModule = pModule->next)
1488     {
1489         pModule = NE_GetPtr( hModule );
1490         if (!pModule) break;
1491         if (pModule->flags & NE_FFLAGS_WIN32) continue;
1492
1493         name_table = (BYTE *)pModule + pModule->name_table;
1494         if ((*name_table == len) && !strncmp(name, name_table+1, len))
1495             return hModule;
1496     }
1497
1498     /* If uppercased 'name' matches exactly the module name of a module:
1499      * Return its handle
1500      */
1501     for (s = tmpstr; *s; s++)
1502         *s = toupper(*s);
1503
1504     for (hModule = hFirstModule; hModule ; hModule = pModule->next)
1505     {
1506         pModule = NE_GetPtr( hModule );
1507         if (!pModule) break;
1508         if (pModule->flags & NE_FFLAGS_WIN32) continue;
1509
1510         name_table = (BYTE *)pModule + pModule->name_table;
1511         /* FIXME: the lstrncmpiA is WRONG. It should not be case insensitive,
1512          * but case sensitive! (Unfortunately Winword 6 and subdlls have
1513          * lowercased module names, but try to load uppercase DLLs, so this
1514          * 'i' compare is just a quickfix until the loader handles that
1515          * correctly. -MM 990705
1516          */
1517         if ((*name_table == len) && !lstrncmpiA(tmpstr, name_table+1, len))
1518             return hModule;
1519     }
1520
1521     /* If the base filename of 'name' matches the base filename of the module
1522      * filename of some module (case-insensitive compare):
1523      * Return its handle.
1524      */
1525
1526     /* basename: search backwards in passed name to \ / or : */
1527     s = tmpstr + strlen(tmpstr);
1528     while (s > tmpstr)
1529     {
1530         if (s[-1]=='/' || s[-1]=='\\' || s[-1]==':')
1531                 break;
1532         s--;
1533     }
1534
1535     /* search this in loaded filename list */
1536     for (hModule = hFirstModule; hModule ; hModule = pModule->next)
1537     {
1538         char            *loadedfn;
1539         OFSTRUCT        *ofs;
1540
1541         pModule = NE_GetPtr( hModule );
1542         if (!pModule) break;
1543         if (!pModule->fileinfo) continue;
1544         if (pModule->flags & NE_FFLAGS_WIN32) continue;
1545
1546         ofs = (OFSTRUCT*)((BYTE *)pModule + pModule->fileinfo);
1547         loadedfn = ((char*)ofs->szPathName) + strlen(ofs->szPathName);
1548         /* basename: search backwards in pathname to \ / or : */
1549         while (loadedfn > (char*)ofs->szPathName)
1550         {
1551             if (loadedfn[-1]=='/' || loadedfn[-1]=='\\' || loadedfn[-1]==':')
1552                     break;
1553             loadedfn--;
1554         }
1555         /* case insensitive compare ... */
1556         if (!lstrcmpiA(loadedfn, s))
1557             return hModule;
1558     }
1559
1560     /* If the extension of 'name' is '.EXE' and the base filename of 'name'
1561      * matches the base filename of the module filename of some 32-bit module:
1562      * Return the corresponding 16-bit dummy module handle.
1563      */
1564     if (len >= 4 && !strcasecmp(name+len-4, ".EXE"))
1565     {
1566         HMODULE hModule = GetModuleHandleA( name );
1567         if ( hModule )
1568             return MapHModuleLS( hModule );
1569     }
1570
1571     if (!strcmp(tmpstr,"MSDOS"))
1572         return 1;
1573
1574     if (!strcmp(tmpstr,"TIMER"))
1575     {
1576         FIXME("Eh... Should return caller's code segment, expect crash\n");
1577         return 0;
1578     }
1579
1580     return 0;
1581 }
1582
1583
1584 /**********************************************************************
1585  *          ModuleFirst    (TOOLHELP.59)
1586  */
1587 BOOL16 WINAPI ModuleFirst16( MODULEENTRY *lpme )
1588 {
1589     lpme->wNext = hFirstModule;
1590     return ModuleNext16( lpme );
1591 }
1592
1593
1594 /**********************************************************************
1595  *          ModuleNext    (TOOLHELP.60)
1596  */
1597 BOOL16 WINAPI ModuleNext16( MODULEENTRY *lpme )
1598 {
1599     NE_MODULE *pModule;
1600     char *name;
1601
1602     if (!lpme->wNext) return FALSE;
1603     if (!(pModule = NE_GetPtr( lpme->wNext ))) return FALSE;
1604     name = (char *)pModule + pModule->name_table;
1605     memcpy( lpme->szModule, name + 1, min(*name, MAX_MODULE_NAME) );
1606     lpme->szModule[min(*name, MAX_MODULE_NAME)] = '\0';
1607     lpme->hModule = lpme->wNext;
1608     lpme->wcUsage = pModule->count;
1609     lstrcpynA( lpme->szExePath, NE_MODULE_NAME(pModule), sizeof(lpme->szExePath) );
1610     lpme->wNext = pModule->next;
1611     return TRUE;
1612 }
1613
1614
1615 /**********************************************************************
1616  *          ModuleFindName    (TOOLHELP.61)
1617  */
1618 BOOL16 WINAPI ModuleFindName16( MODULEENTRY *lpme, LPCSTR name )
1619 {
1620     lpme->wNext = GetModuleHandle16( name );
1621     return ModuleNext16( lpme );
1622 }
1623
1624
1625 /**********************************************************************
1626  *          ModuleFindHandle    (TOOLHELP.62)
1627  */
1628 BOOL16 WINAPI ModuleFindHandle16( MODULEENTRY *lpme, HMODULE16 hModule )
1629 {
1630     hModule = GetExePtr( hModule );
1631     lpme->wNext = hModule;
1632     return ModuleNext16( lpme );
1633 }
1634
1635
1636 /***************************************************************************
1637  *          IsRomModule16    (KERNEL.323)
1638  */
1639 BOOL16 WINAPI IsRomModule16( HMODULE16 unused )
1640 {
1641     return FALSE;
1642 }
1643
1644 /***************************************************************************
1645  *          IsRomFile16    (KERNEL.326)
1646  */
1647 BOOL16 WINAPI IsRomFile16( HFILE16 unused )
1648 {
1649     return FALSE;
1650 }
1651
1652 /***************************************************************************
1653  *              MapHModuleLS                    (KERNEL32.520)
1654  */
1655 HMODULE16 WINAPI MapHModuleLS(HMODULE hmod) {
1656         NE_MODULE       *pModule;
1657
1658         if (!hmod)
1659                 return ((TDB*)GlobalLock16(GetCurrentTask()))->hInstance;
1660         if (!HIWORD(hmod))
1661                 return hmod; /* we already have a 16 bit module handle */
1662         pModule = (NE_MODULE*)GlobalLock16(hFirstModule);
1663         while (pModule)  {
1664                 if (pModule->module32 == hmod)
1665                         return pModule->self;
1666                 pModule = (NE_MODULE*)GlobalLock16(pModule->next);
1667         }
1668         return 0;
1669 }
1670
1671 /***************************************************************************
1672  *              MapHModuleSL                    (KERNEL32.521)
1673  */
1674 HMODULE WINAPI MapHModuleSL(HMODULE16 hmod) {
1675         NE_MODULE       *pModule;
1676
1677         if (!hmod) {
1678                 TDB *pTask = (TDB*)GlobalLock16(GetCurrentTask());
1679
1680                 hmod = pTask->hModule;
1681         }
1682         pModule = (NE_MODULE*)GlobalLock16(hmod);
1683         if (    (pModule->magic!=IMAGE_OS2_SIGNATURE)   ||
1684                 !(pModule->flags & NE_FFLAGS_WIN32)
1685         )
1686                 return 0;
1687         return pModule->module32;
1688 }
1689
1690 /***************************************************************************
1691  *              MapHInstLS                      (KERNEL32.516)
1692  */
1693 void WINAPI REGS_FUNC(MapHInstLS)( CONTEXT *context )
1694 {
1695 #ifdef __i386__
1696         EAX_reg(context) = MapHModuleLS(EAX_reg(context));
1697 #endif
1698 }
1699
1700 /***************************************************************************
1701  *              MapHInstSL                      (KERNEL32.518)
1702  */
1703 void WINAPI REGS_FUNC(MapHInstSL)( CONTEXT *context )
1704 {
1705 #ifdef __i386__
1706         EAX_reg(context) = MapHModuleSL(EAX_reg(context));
1707 #endif
1708 }
1709
1710 /***************************************************************************
1711  *              MapHInstLS_PN                   (KERNEL32.517)
1712  */
1713 void WINAPI REGS_FUNC(MapHInstLS_PN)( CONTEXT *context )
1714 {
1715 #ifdef __i386__
1716         if (EAX_reg(context))
1717             EAX_reg(context) = MapHModuleLS(EAX_reg(context));
1718 #endif
1719 }
1720
1721 /***************************************************************************
1722  *              MapHInstSL_PN                   (KERNEL32.519)
1723  */
1724 void WINAPI REGS_FUNC(MapHInstSL_PN)( CONTEXT *context )
1725 {
1726 #ifdef __i386__
1727         if (EAX_reg(context))
1728             EAX_reg(context) = MapHModuleSL(EAX_reg(context));
1729 #endif
1730 }
1731
1732 /***************************************************************************
1733  *              WIN16_MapHInstLS                (KERNEL.472)
1734  */
1735 VOID WINAPI WIN16_MapHInstLS( CONTEXT86 *context )
1736 {
1737         EAX_reg(context) = MapHModuleLS(EAX_reg(context));
1738 }
1739
1740 /***************************************************************************
1741  *              WIN16_MapHInstSL                (KERNEL.473)
1742  */
1743 VOID WINAPI WIN16_MapHInstSL( CONTEXT86 *context )
1744 {
1745         EAX_reg(context) = MapHModuleSL(EAX_reg(context));
1746 }