dlls/kernel/ne_module.c

   1 /*
   2  * NE modules
   3  *
   4  * Copyright 1995 Alexandre Julliard
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  */
  20
  21 #include "config.h"
  22 #include "wine/port.h"
  23
  24 #include <assert.h>
  25 #include <fcntl.h>
  26 #include <stdarg.h>
  27 #include <stdio.h>
  28 #include <stdlib.h>
  29 #include <string.h>
  30 #ifdef HAVE_UNISTD_H
  31 # include <unistd.h>
  32 #endif
  33 #include <ctype.h>
  34
  35 #include "windef.h"
  36 #include "wine/winbase16.h"
  37 #include "wownt32.h"
  38 #include "toolhelp.h"
  39 #include "excpt.h"
  40 #include "kernel_private.h"
  41 #include "kernel16_private.h"
  42 #include "wine/exception.h"
  43 #include "wine/debug.h"
  44
  45 WINE_DEFAULT_DEBUG_CHANNEL(module);
  46 WINE_DECLARE_DEBUG_CHANNEL(loaddll);
  47
  48 #include "pshpack1.h"
  49 typedef struct _GPHANDLERDEF
  50 {
  51     WORD selector;
  52     WORD rangeStart;
  53     WORD rangeEnd;
  54     WORD handler;
  55 } GPHANDLERDEF;
  56 #include "poppack.h"
  57
  58 /*
  59  * Segment table entry
  60  */
  61 struct ne_segment_table_entry_s
  62 {
  63     WORD seg_data_offset;   /* Sector offset of segment data    */
  64     WORD seg_data_length;   /* Length of segment data           */
  65     WORD seg_flags;         /* Flags associated with this segment       */
  66     WORD min_alloc;         /* Minimum allocation size for this */
  67 };
  68
  69 #define hFirstModule (pThhook->hExeHead)
  70
  71 typedef struct
  72 {
  73     const void *module;       /* module header */
  74     void       *code_start;   /* 32-bit address of DLL code */
  75 } BUILTIN16_DESCRIPTOR;
  76
  77 struct builtin_dll
  78 {
  79     const BUILTIN16_DESCRIPTOR *descr;      /* module descriptor */
  80     const char                 *file_name;  /* module file name */
  81 };
  82
  83 /* Table of all built-in DLLs */
  84
  85 #define MAX_DLLS 50
  86
  87 static struct builtin_dll builtin_dlls[MAX_DLLS];
  88
  89 static HINSTANCE16 NE_LoadModule( LPCSTR name, BOOL lib_only );
  90 static BOOL16 NE_FreeModule( HMODULE16 hModule, BOOL call_wep );
  91
  92 static HINSTANCE16 MODULE_LoadModule16( LPCSTR libname, BOOL implicit, BOOL lib_only );
  93
  94 static HMODULE16 NE_GetModuleByFilename( LPCSTR name );
  95
  96
  97 static WINE_EXCEPTION_FILTER(page_fault)
  98 {
  99     if (GetExceptionCode() == EXCEPTION_ACCESS_VIOLATION ||
 100         GetExceptionCode() == EXCEPTION_PRIV_INSTRUCTION)
 101         return EXCEPTION_EXECUTE_HANDLER;
 102     return EXCEPTION_CONTINUE_SEARCH;
 103 }
 104
 105
 106 /* patch all the flat cs references of the code segment if necessary */
 107 inline static void patch_code_segment( void *code_segment )
 108 {
 109 #ifdef __i386__
 110     CALLFROM16 *call = code_segment;
 111     if (call->flatcs == wine_get_cs()) return;  /* nothing to patch */
 112     while (call->pushl == 0x68)
 113     {
 114         call->flatcs = wine_get_cs();
 115         call++;
 116     }
 117 #endif
 118 }
 119
 120
 121 /***********************************************************************
 122  *              NE_strcasecmp
 123  *
 124  * locale-independent case conversion for module lookups
 125  */
 126 static int NE_strcasecmp( const char *str1, const char *str2 )
 127 {
 128     int ret = 0;
 129     for ( ; ; str1++, str2++)
 130         if ((ret = RtlUpperChar(*str1) - RtlUpperChar(*str2)) || !*str1) break;
 131     return ret;
 132 }
 133
 134
 135 /***********************************************************************
 136  *              NE_strncasecmp
 137  *
 138  * locale-independent case conversion for module lookups
 139  */
 140 static int NE_strncasecmp( const char *str1, const char *str2, int len )
 141 {
 142     int ret = 0;
 143     for ( ; len > 0; len--, str1++, str2++)
 144         if ((ret = RtlUpperChar(*str1) - RtlUpperChar(*str2)) || !*str1) break;
 145     return ret;
 146 }
 147
 148
 149 /***********************************************************************
 150  *           find_dll_descr
 151  *
 152  * Find a descriptor in the list
 153  */
 154 static const BUILTIN16_DESCRIPTOR *find_dll_descr( const char *dllname, const char **file_name )
 155 {
 156     int i;
 157     const IMAGE_DOS_HEADER *mz_header;
 158     const IMAGE_OS2_HEADER *ne_header;
 159     BYTE *name_table;
 160
 161     for (i = 0; i < MAX_DLLS; i++)
 162     {
 163         const BUILTIN16_DESCRIPTOR *descr = builtin_dlls[i].descr;
 164         if (descr)
 165         {
 166             mz_header = descr->module;
 167             ne_header = (const IMAGE_OS2_HEADER *)((const char *)mz_header + mz_header->e_lfanew);
 168             name_table = (BYTE *)ne_header + ne_header->ne_restab;
 169
 170             /* check the dll file name */
 171             if (!NE_strcasecmp( builtin_dlls[i].file_name, dllname ) ||
 172             /* check the dll module name (without extension) */
 173                 (!NE_strncasecmp( dllname, name_table+1, *name_table ) &&
 174                  !strcmp( dllname + *name_table, ".dll" )))
 175             {
 176                 *file_name = builtin_dlls[i].file_name;
 177                 return builtin_dlls[i].descr;
 178             }
 179         }
 180     }
 181     return NULL;
 182 }
 183
 184
 185 /***********************************************************************
 186  *           __wine_dll_register_16 (KERNEL32.@)
 187  *
 188  * Register a built-in DLL descriptor.
 189  */
 190 void __wine_dll_register_16( const BUILTIN16_DESCRIPTOR *descr, const char *file_name )
 191 {
 192     int i;
 193
 194     for (i = 0; i < MAX_DLLS; i++)
 195     {
 196         if (builtin_dlls[i].descr) continue;
 197         builtin_dlls[i].descr = descr;
 198         builtin_dlls[i].file_name = file_name;
 199         break;
 200     }
 201     assert( i < MAX_DLLS );
 202 }
 203
 204
 205 /***********************************************************************
 206  *           __wine_dll_unregister_16 (KERNEL32.@)
 207  *
 208  * Unregister a built-in DLL descriptor.
 209  */
 210 void __wine_dll_unregister_16( const BUILTIN16_DESCRIPTOR *descr )
 211 {
 212     int i;
 213
 214     for (i = 0; i < MAX_DLLS; i++)
 215     {
 216         if (builtin_dlls[i].descr != descr) continue;
 217         builtin_dlls[i].descr = NULL;
 218         break;
 219     }
 220 }
 221
 222
 223 /***********************************************************************
 224  *           NE_GetPtr
 225  */
 226 NE_MODULE *NE_GetPtr( HMODULE16 hModule )
 227 {
 228     return (NE_MODULE *)GlobalLock16( GetExePtr(hModule) );
 229 }
 230
 231
 232 /**********************************************************************
 233  *           NE_RegisterModule
 234  */
 235 static void NE_RegisterModule( NE_MODULE *pModule )
 236 {
 237     pModule->next = hFirstModule;
 238     hFirstModule = pModule->self;
 239 }
 240
 241
 242 /***********************************************************************
 243  *           NE_DumpModule
 244  */
 245 void NE_DumpModule( HMODULE16 hModule )
 246 {
 247     int i, ordinal;
 248     SEGTABLEENTRY *pSeg;
 249     BYTE *pstr;
 250     WORD *pword;
 251     NE_MODULE *pModule;
 252     ET_BUNDLE *bundle;
 253     ET_ENTRY *entry;
 254
 255     if (!(pModule = NE_GetPtr( hModule )))
 256     {
 257         MESSAGE( "**** %04x is not a module handle\n", hModule );
 258         return;
 259     }
 260
 261       /* Dump the module info */
 262     DPRINTF( "---\n" );
 263     DPRINTF( "Module %04x:\n", hModule );
 264     DPRINTF( "count=%d flags=%04x heap=%d stack=%d\n",
 265              pModule->count, pModule->ne_flags,
 266              pModule->ne_heap, pModule->ne_stack );
 267     DPRINTF( "cs:ip=%04x:%04x ss:sp=%04x:%04x ds=%04x nb seg=%d modrefs=%d\n",
 268              SELECTOROF(pModule->ne_csip), OFFSETOF(pModule->ne_csip),
 269              SELECTOROF(pModule->ne_sssp), OFFSETOF(pModule->ne_sssp),
 270              pModule->ne_autodata, pModule->ne_cseg, pModule->ne_cmod );
 271     DPRINTF( "os_flags=%d swap_area=%d version=%04x\n",
 272              pModule->ne_exetyp, pModule->ne_swaparea, pModule->ne_expver );
 273     if (pModule->ne_flags & NE_FFLAGS_WIN32)
 274         DPRINTF( "PE module=%p\n", pModule->module32 );
 275
 276       /* Dump the file info */
 277     DPRINTF( "---\n" );
 278     DPRINTF( "Filename: '%s'\n", NE_MODULE_NAME(pModule) );
 279
 280       /* Dump the segment table */
 281     DPRINTF( "---\n" );
 282     DPRINTF( "Segment table:\n" );
 283     pSeg = NE_SEG_TABLE( pModule );
 284     for (i = 0; i < pModule->ne_cseg; i++, pSeg++)
 285         DPRINTF( "%02x: pos=%d size=%d flags=%04x minsize=%d hSeg=%04x\n",
 286                  i + 1, pSeg->filepos, pSeg->size, pSeg->flags,
 287                  pSeg->minsize, pSeg->hSeg );
 288
 289       /* Dump the resource table */
 290     DPRINTF( "---\n" );
 291     DPRINTF( "Resource table:\n" );
 292     if (pModule->ne_rsrctab)
 293     {
 294         pword = (WORD *)((BYTE *)pModule + pModule->ne_rsrctab);
 295         DPRINTF( "Alignment: %d\n", *pword++ );
 296         while (*pword)
 297         {
 298             NE_TYPEINFO *ptr = (NE_TYPEINFO *)pword;
 299             NE_NAMEINFO *pname = (NE_NAMEINFO *)(ptr + 1);
 300             DPRINTF( "id=%04x count=%d\n", ptr->type_id, ptr->count );
 301             for (i = 0; i < ptr->count; i++, pname++)
 302                 DPRINTF( "offset=%d len=%d id=%04x\n",
 303                       pname->offset, pname->length, pname->id );
 304             pword = (WORD *)pname;
 305         }
 306     }
 307     else DPRINTF( "None\n" );
 308
 309       /* Dump the resident name table */
 310     DPRINTF( "---\n" );
 311     DPRINTF( "Resident-name table:\n" );
 312     pstr = (char *)pModule + pModule->ne_restab;
 313     while (*pstr)
 314     {
 315         DPRINTF( "%*.*s: %d\n", *pstr, *pstr, pstr + 1,
 316                  *(WORD *)(pstr + *pstr + 1) );
 317         pstr += *pstr + 1 + sizeof(WORD);
 318     }
 319
 320       /* Dump the module reference table */
 321     DPRINTF( "---\n" );
 322     DPRINTF( "Module ref table:\n" );
 323     if (pModule->ne_modtab)
 324     {
 325         pword = (WORD *)((BYTE *)pModule + pModule->ne_modtab);
 326         for (i = 0; i < pModule->ne_cmod; i++, pword++)
 327         {
 328             char name[10];
 329             GetModuleName16( *pword, name, sizeof(name) );
 330             DPRINTF( "%d: %04x -> '%s'\n", i, *pword, name );
 331         }
 332     }
 333     else DPRINTF( "None\n" );
 334
 335       /* Dump the entry table */
 336     DPRINTF( "---\n" );
 337     DPRINTF( "Entry table:\n" );
 338     bundle = (ET_BUNDLE *)((BYTE *)pModule+pModule->ne_enttab);
 339     do {
 340         entry = (ET_ENTRY *)((BYTE *)bundle+6);
 341         DPRINTF( "Bundle %d-%d: %02x\n", bundle->first, bundle->last, entry->type);
 342         ordinal = bundle->first;
 343         while (ordinal < bundle->last)
 344         {
 345             if (entry->type == 0xff)
 346                 DPRINTF("%d: %02x:%04x (moveable)\n", ordinal++, entry->segnum, entry->offs);
 347             else
 348                 DPRINTF("%d: %02x:%04x (fixed)\n", ordinal++, entry->segnum, entry->offs);
 349             entry++;
 350         }
 351     } while ( (bundle->next) && (bundle = ((ET_BUNDLE *)((BYTE *)pModule + bundle->next))) );
 352
 353     /* Dump the non-resident names table */
 354     DPRINTF( "---\n" );
 355     DPRINTF( "Non-resident names table:\n" );
 356     if (pModule->nrname_handle)
 357     {
 358         pstr = (char *)GlobalLock16( pModule->nrname_handle );
 359         while (*pstr)
 360         {
 361             DPRINTF( "%*.*s: %d\n", *pstr, *pstr, pstr + 1,
 362                    *(WORD *)(pstr + *pstr + 1) );
 363             pstr += *pstr + 1 + sizeof(WORD);
 364         }
 365     }
 366     DPRINTF( "\n" );
 367 }
 368
 369
 370 /***********************************************************************
 371  *           NE_WalkModules
 372  *
 373  * Walk the module list and print the modules.
 374  */
 375 void NE_WalkModules(void)
 376 {
 377     HMODULE16 hModule = hFirstModule;
 378     MESSAGE( "Module Flags Name\n" );
 379     while (hModule)
 380     {
 381         NE_MODULE *pModule = NE_GetPtr( hModule );
 382         if (!pModule)
 383         {
 384             MESSAGE( "Bad module %04x in list\n", hModule );
 385             return;
 386         }
 387         MESSAGE( " %04x  %04x  %.*s\n", hModule, pModule->ne_flags,
 388                  *((char *)pModule + pModule->ne_restab),
 389                  (char *)pModule + pModule->ne_restab + 1 );
 390         hModule = pModule->next;
 391     }
 392 }
 393
 394
 395 /***********************************************************************
 396  *           NE_InitResourceHandler
 397  *
 398  * Fill in 'resloader' fields in the resource table.
 399  */
 400 static void NE_InitResourceHandler( HMODULE16 hModule )
 401 {
 402     static FARPROC16 proc;
 403
 404     NE_TYPEINFO *pTypeInfo;
 405     NE_MODULE *pModule;
 406
 407     if (!(pModule = NE_GetPtr( hModule )) || !pModule->ne_rsrctab) return;
 408
 409     TRACE("InitResourceHandler[%04x]\n", hModule );
 410
 411     if (!proc) proc = GetProcAddress16( GetModuleHandle16("KERNEL"), "DefResourceHandler" );
 412
 413     pTypeInfo = (NE_TYPEINFO *)((char *)pModule + pModule->ne_rsrctab + 2);
 414     while(pTypeInfo->type_id)
 415     {
 416         memcpy_unaligned( &pTypeInfo->resloader, &proc, sizeof(FARPROC16) );
 417         pTypeInfo = (NE_TYPEINFO *)((char*)(pTypeInfo + 1) + pTypeInfo->count * sizeof(NE_NAMEINFO));
 418     }
 419 }
 420
 421
 422 /***********************************************************************
 423  *           NE_GetOrdinal
 424  *
 425  * Lookup the ordinal for a given name.
 426  */
 427 WORD NE_GetOrdinal( HMODULE16 hModule, const char *name )
 428 {
 429     unsigned char buffer[256], *cpnt;
 430     BYTE len;
 431     NE_MODULE *pModule;
 432
 433     if (!(pModule = NE_GetPtr( hModule ))) return 0;
 434     if (pModule->ne_flags & NE_FFLAGS_WIN32) return 0;
 435
 436     TRACE("(%04x,'%s')\n", hModule, name );
 437
 438       /* First handle names of the form '#xxxx' */
 439
 440     if (name[0] == '#') return atoi( name + 1 );
 441
 442       /* Now copy and uppercase the string */
 443
 444     strcpy( buffer, name );
 445     for (cpnt = buffer; *cpnt; cpnt++) *cpnt = RtlUpperChar(*cpnt);
 446     len = cpnt - buffer;
 447
 448       /* First search the resident names */
 449
 450     cpnt = (char *)pModule + pModule->ne_restab;
 451
 452       /* Skip the first entry (module name) */
 453     cpnt += *cpnt + 1 + sizeof(WORD);
 454     while (*cpnt)
 455     {
 456         if (((BYTE)*cpnt == len) && !memcmp( cpnt+1, buffer, len ))
 457         {
 458             WORD ordinal;
 459             memcpy( &ordinal, cpnt + *cpnt + 1, sizeof(ordinal) );
 460             TRACE("  Found: ordinal=%d\n", ordinal );
 461             return ordinal;
 462         }
 463         cpnt += *cpnt + 1 + sizeof(WORD);
 464     }
 465
 466       /* Now search the non-resident names table */
 467
 468     if (!pModule->nrname_handle) return 0;  /* No non-resident table */
 469     cpnt = (char *)GlobalLock16( pModule->nrname_handle );
 470
 471       /* Skip the first entry (module description string) */
 472     cpnt += *cpnt + 1 + sizeof(WORD);
 473     while (*cpnt)
 474     {
 475         if (((BYTE)*cpnt == len) && !memcmp( cpnt+1, buffer, len ))
 476         {
 477             WORD ordinal;
 478             memcpy( &ordinal, cpnt + *cpnt + 1, sizeof(ordinal) );
 479             TRACE("  Found: ordinal=%d\n", ordinal );
 480             return ordinal;
 481         }
 482         cpnt += *cpnt + 1 + sizeof(WORD);
 483     }
 484     return 0;
 485 }
 486
 487
 488 /***********************************************************************
 489  *              NE_GetEntryPoint
 490  */
 491 FARPROC16 WINAPI NE_GetEntryPoint( HMODULE16 hModule, WORD ordinal )
 492 {
 493     return NE_GetEntryPointEx( hModule, ordinal, TRUE );
 494 }
 495
 496 /***********************************************************************
 497  *              NE_GetEntryPointEx
 498  */
 499 FARPROC16 NE_GetEntryPointEx( HMODULE16 hModule, WORD ordinal, BOOL16 snoop )
 500 {
 501     NE_MODULE *pModule;
 502     WORD sel, offset, i;
 503
 504     ET_ENTRY *entry;
 505     ET_BUNDLE *bundle;
 506
 507     if (!(pModule = NE_GetPtr( hModule ))) return 0;
 508     assert( !(pModule->ne_flags & NE_FFLAGS_WIN32) );
 509
 510     bundle = (ET_BUNDLE *)((BYTE *)pModule + pModule->ne_enttab);
 511     while ((ordinal < bundle->first + 1) || (ordinal > bundle->last))
 512     {
 513         if (!(bundle->next))
 514             return 0;
 515         bundle = (ET_BUNDLE *)((BYTE *)pModule + bundle->next);
 516     }
 517
 518     entry = (ET_ENTRY *)((BYTE *)bundle+6);
 519     for (i=0; i < (ordinal - bundle->first - 1); i++)
 520         entry++;
 521
 522     sel = entry->segnum;
 523     memcpy( &offset, &entry->offs, sizeof(WORD) );
 524
 525     if (sel == 0xfe) sel = 0xffff;  /* constant entry */
 526     else sel = GlobalHandleToSel16(NE_SEG_TABLE(pModule)[sel-1].hSeg);
 527     if (sel==0xffff)
 528         return (FARPROC16)MAKESEGPTR( sel, offset );
 529     if (!snoop)
 530         return (FARPROC16)MAKESEGPTR( sel, offset );
 531     else
 532         return (FARPROC16)SNOOP16_GetProcAddress16(hModule,ordinal,(FARPROC16)MAKESEGPTR( sel, offset ));
 533 }
 534
 535
 536 /***********************************************************************
 537  *              EntryAddrProc (KERNEL.667) Wine-specific export
 538  *
 539  * Return the entry point for a given ordinal.
 540  */
 541 FARPROC16 WINAPI EntryAddrProc16( HMODULE16 hModule, WORD ordinal )
 542 {
 543     FARPROC16 ret = NE_GetEntryPointEx( hModule, ordinal, TRUE );
 544     CURRENT_STACK16->ecx = hModule; /* FIXME: might be incorrect value */
 545     return ret;
 546 }
 547
 548 /***********************************************************************
 549  *           NE_SetEntryPoint
 550  *
 551  * Change the value of an entry point. Use with caution!
 552  * It can only change the offset value, not the selector.
 553  */
 554 BOOL16 NE_SetEntryPoint( HMODULE16 hModule, WORD ordinal, WORD offset )
 555 {
 556     NE_MODULE *pModule;
 557     ET_ENTRY *entry;
 558     ET_BUNDLE *bundle;
 559     int i;
 560
 561     if (!(pModule = NE_GetPtr( hModule ))) return FALSE;
 562     assert( !(pModule->ne_flags & NE_FFLAGS_WIN32) );
 563
 564     bundle = (ET_BUNDLE *)((BYTE *)pModule + pModule->ne_enttab);
 565     while ((ordinal < bundle->first + 1) || (ordinal > bundle->last))
 566     {
 567         bundle = (ET_BUNDLE *)((BYTE *)pModule + bundle->next);
 568         if (!(bundle->next)) return 0;
 569     }
 570
 571     entry = (ET_ENTRY *)((BYTE *)bundle+6);
 572     for (i=0; i < (ordinal - bundle->first - 1); i++)
 573         entry++;
 574
 575     memcpy( &entry->offs, &offset, sizeof(WORD) );
 576     return TRUE;
 577 }
 578
 579
 580 /***********************************************************************
 581  *           build_bundle_data
 582  *
 583  * Build the entry table bundle data from the on-disk format. Helper for build_module.
 584  */
 585 static void *build_bundle_data( NE_MODULE *pModule, void *dest, const BYTE *table )
 586 {
 587     ET_BUNDLE *oldbundle, *bundle = dest;
 588     ET_ENTRY *entry;
 589     BYTE nr_entries, type;
 590
 591     memset(bundle, 0, sizeof(ET_BUNDLE)); /* in case no entry table exists */
 592     entry = (ET_ENTRY *)((BYTE *)bundle+6);
 593
 594     while ((nr_entries = *table++))
 595     {
 596         if ((type = *table++))
 597         {
 598             bundle->last += nr_entries;
 599             if (type == 0xff)
 600             {
 601                 while (nr_entries--)
 602                 {
 603                     entry->type   = type;
 604                     entry->flags  = *table++;
 605                     table += sizeof(WORD);
 606                     entry->segnum = *table++;
 607                     entry->offs   = *(WORD *)table;
 608                     table += sizeof(WORD);
 609                     entry++;
 610                 }
 611             }
 612             else
 613             {
 614                 while (nr_entries--)
 615                 {
 616                     entry->type   = type;
 617                     entry->flags  = *table++;
 618                     entry->segnum = type;
 619                     entry->offs   = *(WORD *)table;
 620                     table += sizeof(WORD);
 621                     entry++;
 622                 }
 623             }
 624         }
 625         else
 626         {
 627             if (bundle->first == bundle->last)
 628             {
 629                 bundle->first += nr_entries;
 630                 bundle->last += nr_entries;
 631             }
 632             else
 633             {
 634                 oldbundle = bundle;
 635                 oldbundle->next = (char *)entry - (char *)pModule;
 636                 bundle = (ET_BUNDLE *)entry;
 637                 bundle->first = bundle->last = oldbundle->last + nr_entries;
 638                 bundle->next = 0;
 639                 entry = (ET_ENTRY*)(((BYTE*)entry)+sizeof(ET_BUNDLE));
 640             }
 641         }
 642     }
 643     return entry;
 644 }
 645
 646
 647 /***********************************************************************
 648  *           build_module
 649  *
 650  * Build the in-memory module from the on-disk data.
 651  */
 652 static HMODULE16 build_module( const void *mapping, SIZE_T mapping_size, LPCSTR path )
 653 {
 654     const IMAGE_DOS_HEADER *mz_header = mapping;
 655     const IMAGE_OS2_HEADER *ne_header;
 656     const struct ne_segment_table_entry_s *pSeg;
 657     const void *ptr;
 658     int i;
 659     size_t size;
 660     HMODULE16 hModule;
 661     NE_MODULE *pModule;
 662     BYTE *buffer, *pData, *end;
 663     OFSTRUCT *ofs;
 664
 665     if (mapping_size < sizeof(*mz_header)) return ERROR_BAD_FORMAT;
 666     if (mz_header->e_magic != IMAGE_DOS_SIGNATURE) return ERROR_BAD_FORMAT;
 667     ne_header = (const IMAGE_OS2_HEADER *)((const char *)mapping + mz_header->e_lfanew);
 668     if (mz_header->e_lfanew + sizeof(*ne_header) > mapping_size) return ERROR_BAD_FORMAT;
 669     if (ne_header->ne_magic == IMAGE_NT_SIGNATURE) return 21;  /* win32 exe */
 670     if (ne_header->ne_magic == IMAGE_OS2_SIGNATURE_LX)
 671     {
 672         MESSAGE("Sorry, %s is an OS/2 linear executable (LX) file!\n", path);
 673         return 12;
 674     }
 675     if (ne_header->ne_magic != IMAGE_OS2_SIGNATURE) return ERROR_BAD_FORMAT;
 676
 677     /* We now have a valid NE header */
 678
 679     /* check to be able to fall back to loading OS/2 programs as DOS
 680      * FIXME: should this check be reversed in order to be less strict?
 681      * (only fail for OS/2 ne_exetyp 0x01 here?) */
 682     if ((ne_header->ne_exetyp != 0x02 /* Windows */)
 683         && (ne_header->ne_exetyp != 0x04) /* Windows 386 */)
 684         return ERROR_BAD_FORMAT;
 685
 686     size = sizeof(NE_MODULE) +
 687              /* segment table */
 688            ne_header->ne_cseg * sizeof(SEGTABLEENTRY) +
 689              /* resource table */
 690            ne_header->ne_restab - ne_header->ne_rsrctab +
 691              /* resident names table */
 692            ne_header->ne_modtab - ne_header->ne_restab +
 693              /* module ref table */
 694            ne_header->ne_cmod * sizeof(WORD) +
 695              /* imported names table */
 696            ne_header->ne_enttab - ne_header->ne_imptab +
 697              /* entry table length */
 698            ne_header->ne_cbenttab +
 699              /* entry table extra conversion space */
 700            sizeof(ET_BUNDLE) +
 701            2 * (ne_header->ne_cbenttab - ne_header->ne_cmovent*6) +
 702              /* loaded file info */
 703            sizeof(OFSTRUCT) - sizeof(ofs->szPathName) + strlen(path) + 1;
 704
 705     hModule = GlobalAlloc16( GMEM_FIXED | GMEM_ZEROINIT, size );
 706     if (!hModule) return ERROR_BAD_FORMAT;
 707
 708     FarSetOwner16( hModule, hModule );
 709     pModule = (NE_MODULE *)GlobalLock16( hModule );
 710     memcpy( pModule, ne_header, sizeof(*ne_header) );
 711     pModule->count = 0;
 712     /* check programs for default minimal stack size */
 713     if (!(pModule->ne_flags & NE_FFLAGS_LIBMODULE) && (pModule->ne_stack < 0x1400))
 714         pModule->ne_stack = 0x1400;
 715
 716     pModule->self         = hModule;
 717     pModule->mapping      = mapping;
 718     pModule->mapping_size = mapping_size;
 719
 720     pData = (BYTE *)(pModule + 1);
 721
 722     /* Clear internal Wine flags in case they are set in the EXE file */
 723
 724     pModule->ne_flags &= ~(NE_FFLAGS_BUILTIN | NE_FFLAGS_WIN32);
 725
 726     /* Get the segment table */
 727
 728     pModule->ne_segtab = pData - (BYTE *)pModule;
 729     if (!(pSeg = NE_GET_DATA( pModule, mz_header->e_lfanew + ne_header->ne_segtab,
 730                               ne_header->ne_cseg * sizeof(struct ne_segment_table_entry_s) )))
 731         goto failed;
 732     for (i = ne_header->ne_cseg; i > 0; i--, pSeg++)
 733     {
 734         memcpy( pData, pSeg, sizeof(*pSeg) );
 735         pData += sizeof(SEGTABLEENTRY);
 736     }
 737
 738     /* Get the resource table */
 739
 740     if (ne_header->ne_rsrctab < ne_header->ne_restab)
 741     {
 742         pModule->ne_rsrctab = pData - (BYTE *)pModule;
 743         if (!NE_READ_DATA( pModule, pData, mz_header->e_lfanew + ne_header->ne_rsrctab,
 744                            ne_header->ne_restab - ne_header->ne_rsrctab )) goto failed;
 745         pData += ne_header->ne_restab - ne_header->ne_rsrctab;
 746     }
 747     else pModule->ne_rsrctab = 0;  /* No resource table */
 748
 749     /* Get the resident names table */
 750
 751     pModule->ne_restab = pData - (BYTE *)pModule;
 752     if (!NE_READ_DATA( pModule, pData, mz_header->e_lfanew + ne_header->ne_restab,
 753                        ne_header->ne_modtab - ne_header->ne_restab )) goto failed;
 754     pData += ne_header->ne_modtab - ne_header->ne_restab;
 755
 756     /* Get the module references table */
 757
 758     if (ne_header->ne_cmod > 0)
 759     {
 760         pModule->ne_modtab = pData - (BYTE *)pModule;
 761         if (!NE_READ_DATA( pModule, pData, mz_header->e_lfanew + ne_header->ne_modtab,
 762                            ne_header->ne_cmod * sizeof(WORD) )) goto failed;
 763         pData += ne_header->ne_cmod * sizeof(WORD);
 764     }
 765     else pModule->ne_modtab = 0;  /* No module references */
 766
 767     /* Get the imported names table */
 768
 769     pModule->ne_imptab = pData - (BYTE *)pModule;
 770     if (!NE_READ_DATA( pModule, pData, mz_header->e_lfanew + ne_header->ne_imptab,
 771                        ne_header->ne_enttab - ne_header->ne_imptab )) goto failed;
 772     pData += ne_header->ne_enttab - ne_header->ne_imptab;
 773
 774     /* Load entry table, convert it to the optimized version used by Windows */
 775
 776     pModule->ne_enttab = pData - (BYTE *)pModule;
 777     if (!(ptr = NE_GET_DATA( pModule, mz_header->e_lfanew + ne_header->ne_enttab,
 778                              ne_header->ne_cbenttab ))) goto failed;
 779     end = build_bundle_data( pModule, pData, ptr );
 780
 781     pData += ne_header->ne_cbenttab + sizeof(ET_BUNDLE) +
 782         2 * (ne_header->ne_cbenttab - ne_header->ne_cmovent*6);
 783
 784     if (end > pData)
 785     {
 786         FIXME( "not enough space for entry table for %s\n", debugstr_a(path) );
 787         goto failed;
 788     }
 789
 790     /* Store the filename information */
 791
 792     pModule->fileinfo = pData - (BYTE *)pModule;
 793     ofs = (OFSTRUCT *)pData;
 794     ofs->cBytes = sizeof(OFSTRUCT) - sizeof(ofs->szPathName) + strlen(path);
 795     ofs->fFixedDisk = 1;
 796     strcpy( ofs->szPathName, path );
 797     pData += ofs->cBytes + 1;
 798     assert( (BYTE *)pModule + size <= pData );
 799
 800     /* Get the non-resident names table */
 801
 802     if (ne_header->ne_cbnrestab)
 803     {
 804         pModule->nrname_handle = GlobalAlloc16( 0, ne_header->ne_cbnrestab );
 805         if (!pModule->nrname_handle) goto failed;
 806         FarSetOwner16( pModule->nrname_handle, hModule );
 807         buffer = GlobalLock16( pModule->nrname_handle );
 808         if (!NE_READ_DATA( pModule, buffer, ne_header->ne_nrestab, ne_header->ne_cbnrestab ))
 809         {
 810             GlobalFree16( pModule->nrname_handle );
 811             goto failed;
 812         }
 813     }
 814     else pModule->nrname_handle = 0;
 815
 816     /* Allocate a segment for the implicitly-loaded DLLs */
 817
 818     if (pModule->ne_cmod)
 819     {
 820         pModule->dlls_to_init = GlobalAlloc16( GMEM_ZEROINIT,
 821                                                (pModule->ne_cmod+1)*sizeof(HMODULE16) );
 822         if (!pModule->dlls_to_init)
 823         {
 824             if (pModule->nrname_handle) GlobalFree16( pModule->nrname_handle );
 825             goto failed;
 826         }
 827         FarSetOwner16( pModule->dlls_to_init, hModule );
 828     }
 829     else pModule->dlls_to_init = 0;
 830
 831     NE_RegisterModule( pModule );
 832     return hModule;
 833
 834 failed:
 835     GlobalFree16( hModule );
 836     return ERROR_BAD_FORMAT;
 837 }
 838
 839
 840 /***********************************************************************
 841  *           NE_LoadDLLs
 842  *
 843  * Load all DLLs implicitly linked to a module.
 844  */
 845 static BOOL NE_LoadDLLs( NE_MODULE *pModule )
 846 {
 847     int i;
 848     WORD *pModRef = (WORD *)((char *)pModule + pModule->ne_modtab);
 849     WORD *pDLLs = (WORD *)GlobalLock16( pModule->dlls_to_init );
 850
 851     for (i = 0; i < pModule->ne_cmod; i++, pModRef++)
 852     {
 853         char buffer[260], *p;
 854         BYTE *pstr = (BYTE *)pModule + pModule->ne_imptab + *pModRef;
 855         memcpy( buffer, pstr + 1, *pstr );
 856         *(buffer + *pstr) = 0; /* terminate it */
 857
 858         TRACE("Loading '%s'\n", buffer );
 859         if (!(*pModRef = GetModuleHandle16( buffer )))
 860         {
 861             /* If the DLL is not loaded yet, load it and store */
 862             /* its handle in the list of DLLs to initialize.   */
 863             HMODULE16 hDLL;
 864
 865             /* Append .DLL to name if no extension present */
 866             if (!(p = strrchr( buffer, '.')) || strchr( p, '/' ) || strchr( p, '\\'))
 867                     strcat( buffer, ".DLL" );
 868
 869             if ((hDLL = MODULE_LoadModule16( buffer, TRUE, TRUE )) < 32)
 870             {
 871                 /* FIXME: cleanup what was done */
 872
 873                 MESSAGE( "Could not load '%s' required by '%.*s', error=%d\n",
 874                      buffer, *((BYTE*)pModule + pModule->ne_restab),
 875                      (char *)pModule + pModule->ne_restab + 1, hDLL );
 876                 return FALSE;
 877             }
 878             *pModRef = GetExePtr( hDLL );
 879             *pDLLs++ = *pModRef;
 880         }
 881         else  /* Increment the reference count of the DLL */
 882         {
 883             NE_MODULE *pOldDLL = NE_GetPtr( *pModRef );
 884             if (pOldDLL) pOldDLL->count++;
 885         }
 886     }
 887     return TRUE;
 888 }
 889
 890
 891 /**********************************************************************
 892  *          NE_DoLoadModule
 893  *
 894  * Load first instance of NE module from file.
 895  *
 896  * pModule must point to a module structure prepared by build_module_data.
 897  * This routine must never be called twice on a module.
 898  *
 899  */
 900 static HINSTANCE16 NE_DoLoadModule( NE_MODULE *pModule )
 901 {
 902     /* Allocate the segments for this module */
 903
 904     if (!NE_CreateAllSegments( pModule ))
 905         return ERROR_NOT_ENOUGH_MEMORY; /* 8 */
 906
 907     /* Load the referenced DLLs */
 908
 909     if (!NE_LoadDLLs( pModule ))
 910         return ERROR_FILE_NOT_FOUND; /* 2 */
 911
 912     /* Load the segments */
 913
 914     NE_LoadAllSegments( pModule );
 915
 916     /* Make sure the usage count is 1 on the first loading of  */
 917     /* the module, even if it contains circular DLL references */
 918
 919     pModule->count = 1;
 920
 921     return NE_GetInstance( pModule );
 922 }
 923
 924 /**********************************************************************
 925  *          NE_LoadModule
 926  *
 927  * Load first instance of NE module. (Note: caller is responsible for
 928  * ensuring the module isn't already loaded!)
 929  *
 930  * If the module turns out to be an executable module, only a
 931  * handle to a module stub is returned; this needs to be initialized
 932  * by calling NE_DoLoadModule later, in the context of the newly
 933  * created process.
 934  *
 935  * If lib_only is TRUE, however, the module is perforce treated
 936  * like a DLL module, even if it is an executable module.
 937  *
 938  */
 939 static HINSTANCE16 NE_LoadModule( LPCSTR name, BOOL lib_only )
 940 {
 941     NE_MODULE *pModule;
 942     HMODULE16 hModule;
 943     HINSTANCE16 hInstance;
 944     HFILE16 hFile;
 945     OFSTRUCT ofs;
 946     HANDLE mapping;
 947     void *ptr;
 948     MEMORY_BASIC_INFORMATION info;
 949
 950     /* Open file */
 951     if ((hFile = OpenFile16( name, &ofs, OF_READ|OF_SHARE_DENY_WRITE )) == HFILE_ERROR16)
 952         return ERROR_FILE_NOT_FOUND;
 953
 954     mapping = CreateFileMappingW( DosFileHandleToWin32Handle(hFile), NULL, PAGE_WRITECOPY, 0, 0, NULL );
 955     _lclose16( hFile );
 956     if (!mapping) return ERROR_BAD_FORMAT;
 957
 958     ptr = MapViewOfFile( mapping, FILE_MAP_COPY, 0, 0, 0 );
 959     CloseHandle( mapping );
 960     if (!ptr) return ERROR_BAD_FORMAT;
 961
 962     VirtualQuery( ptr, &info, sizeof(info) );
 963     hModule = build_module( ptr, info.RegionSize, ofs.szPathName );
 964
 965     if (hModule < 32)
 966     {
 967         UnmapViewOfFile( ptr );
 968         return hModule;
 969     }
 970
 971     SNOOP16_RegisterDLL( hModule, ofs.szPathName );
 972     NE_InitResourceHandler( hModule );
 973
 974     pModule = NE_GetPtr( hModule );
 975
 976     if ( !lib_only && !( pModule->ne_flags & NE_FFLAGS_LIBMODULE ) )
 977         return hModule;
 978
 979     hInstance = NE_DoLoadModule( pModule );
 980     if ( hInstance < 32 )
 981     {
 982         /* cleanup ... */
 983         NE_FreeModule( hModule, 0 );
 984     }
 985
 986     return hInstance;
 987 }
 988
 989
 990 /***********************************************************************
 991  *           NE_DoLoadBuiltinModule
 992  *
 993  * Load a built-in Win16 module. Helper function for NE_LoadBuiltinModule.
 994  */
 995 static HMODULE16 NE_DoLoadBuiltinModule( const BUILTIN16_DESCRIPTOR *descr, const char *file_name )
 996 {
 997     NE_MODULE *pModule;
 998     HMODULE16 hModule;
 999     SEGTABLEENTRY *pSegTable;
1000     const IMAGE_DOS_HEADER *mz_header;
1001     const IMAGE_OS2_HEADER *ne_header;
1002     SIZE_T mapping_size;
1003
1004     mz_header = descr->module;
1005     ne_header = (const IMAGE_OS2_HEADER *)((const BYTE *)mz_header + mz_header->e_lfanew);
1006     mapping_size = ne_header->ne_psegrefbytes << ne_header->ne_align;
1007     hModule = build_module( descr->module, mapping_size, file_name );
1008     if (hModule < 32) return hModule;
1009     pModule = GlobalLock16( hModule );
1010     pModule->ne_flags |= NE_FFLAGS_BUILTIN;
1011     pModule->count = 1;
1012
1013     /* Allocate the code segment */
1014
1015     pSegTable = NE_SEG_TABLE( pModule );
1016     pSegTable->hSeg = GLOBAL_CreateBlock( GMEM_FIXED, descr->code_start,
1017                                           pSegTable->minsize, hModule,
1018                                           WINE_LDT_FLAGS_CODE|WINE_LDT_FLAGS_32BIT );
1019     if (!pSegTable->hSeg) return ERROR_NOT_ENOUGH_MEMORY;
1020     patch_code_segment( descr->code_start );
1021     pSegTable->flags |= NE_SEGFLAGS_ALLOCATED | NE_SEGFLAGS_LOADED;
1022     pSegTable++;
1023
1024     /* Allocate the data segment */
1025
1026     if (!NE_CreateSegment( pModule, 2 )) return ERROR_NOT_ENOUGH_MEMORY;
1027     pModule->dgroup_entry = (char *)pSegTable - (char *)pModule;
1028     memcpy( GlobalLock16( pSegTable->hSeg ),
1029             (const char *)descr->module + (pSegTable->filepos << pModule->ne_align),
1030             pSegTable->minsize);
1031     pSegTable->flags |= NE_SEGFLAGS_LOADED;
1032
1033     if (pModule->ne_heap)
1034     {
1035         unsigned int size = pSegTable->minsize + pModule->ne_heap;
1036         if (size > 0xfffe) size = 0xfffe;
1037         LocalInit16( GlobalHandleToSel16(pSegTable->hSeg), pSegTable->minsize, size );
1038     }
1039
1040     NE_InitResourceHandler( hModule );
1041     return hModule;
1042 }
1043
1044
1045 /**********************************************************************
1046  *          MODULE_LoadModule16
1047  *
1048  * Load a NE module in the order of the loadorder specification.
1049  * The caller is responsible that the module is not loaded already.
1050  *
1051  */
1052 static HINSTANCE16 MODULE_LoadModule16( LPCSTR libname, BOOL implicit, BOOL lib_only )
1053 {
1054     HINSTANCE16 hinst = 2;
1055     HMODULE16 hModule;
1056     NE_MODULE *pModule;
1057     const BUILTIN16_DESCRIPTOR *descr = NULL;
1058     const char *file_name = NULL;
1059     char dllname[20], owner[20], *p;
1060     const char *basename;
1061     int owner_exists;
1062
1063     /* strip path information */
1064
1065     basename = libname;
1066     if (basename[0] && basename[1] == ':') basename += 2;  /* strip drive specification */
1067     if ((p = strrchr( basename, '\\' ))) basename = p + 1;
1068     if ((p = strrchr( basename, '/' ))) basename = p + 1;
1069
1070     if (strlen(basename) < sizeof(dllname)-4)
1071     {
1072         strcpy( dllname, basename );
1073         p = strrchr( dllname, '.' );
1074         if (!p) strcat( dllname, ".dll" );
1075         for (p = dllname; *p; p++) if (*p >= 'A' && *p <= 'Z') *p += 32;
1076
1077         if (wine_dll_get_owner( dllname, owner, sizeof(owner), &owner_exists ) != -1)
1078         {
1079             HMODULE mod32 = LoadLibraryA( owner );
1080             if (mod32)
1081             {
1082                 if (!(descr = find_dll_descr( dllname, &file_name )))
1083                 {
1084                     FreeLibrary( mod32 );
1085                     owner_exists = 0;
1086                 }
1087                 /* loading the 32-bit library can have the side effect of loading the module */
1088                 /* if so, simply incr the ref count and return the module */
1089                 if ((hModule = GetModuleHandle16( libname )))
1090                 {
1091                     TRACE( "module %s already loaded by owner\n", libname );
1092                     pModule = NE_GetPtr( hModule );
1093                     if (pModule) pModule->count++;
1094                     return hModule;
1095                 }
1096             }
1097             else
1098             {
1099                 /* it's probably disabled by the load order config */
1100                 WARN( "couldn't load owner %s for 16-bit dll %s\n", owner, dllname );
1101                 return ERROR_FILE_NOT_FOUND;
1102             }
1103         }
1104     }
1105
1106     if (descr)
1107     {
1108         TRACE("Trying built-in '%s'\n", libname);
1109         hinst = NE_DoLoadBuiltinModule( descr, file_name );
1110         if (hinst > 32) TRACE_(loaddll)("Loaded module %s : builtin\n", debugstr_a(file_name));
1111     }
1112     else
1113     {
1114         TRACE("Trying native dll '%s'\n", libname);
1115         hinst = NE_LoadModule(libname, lib_only);
1116         if (hinst > 32) TRACE_(loaddll)("Loaded module %s : native\n", debugstr_a(libname));
1117         if (hinst == ERROR_FILE_NOT_FOUND && owner_exists) hinst = 21;  /* win32 module */
1118     }
1119
1120     if (hinst > 32 && !implicit)
1121     {
1122         hModule = GetModuleHandle16(libname);
1123         if(!hModule)
1124         {
1125             ERR("Serious trouble. Just loaded module '%s' (hinst=0x%04x), but can't get module handle. Filename too long ?\n",
1126                 libname, hinst);
1127             return ERROR_INVALID_HANDLE;
1128         }
1129
1130         pModule = NE_GetPtr(hModule);
1131         if(!pModule)
1132         {
1133             ERR("Serious trouble. Just loaded module '%s' (hinst=0x%04x), but can't get NE_MODULE pointer\n",
1134                 libname, hinst);
1135             return ERROR_INVALID_HANDLE;
1136         }
1137
1138         TRACE("Loaded module '%s' at 0x%04x.\n", libname, hinst);
1139
1140         /*
1141          * Call initialization routines for all loaded DLLs. Note that
1142          * when we load implicitly linked DLLs this will be done by InitTask().
1143          */
1144         if(pModule->ne_flags & NE_FFLAGS_LIBMODULE)
1145         {
1146             NE_InitializeDLLs(hModule);
1147             NE_DllProcessAttach(hModule);
1148         }
1149     }
1150     return hinst;       /* The last error that occurred */
1151 }
1152
1153
1154 /**********************************************************************
1155  *          NE_CreateThread
1156  *
1157  * Create the thread for a 16-bit module.
1158  */
1159 static HINSTANCE16 NE_CreateThread( NE_MODULE *pModule, WORD cmdShow, LPCSTR cmdline )
1160 {
1161     HANDLE hThread;
1162     TDB *pTask;
1163     HTASK16 hTask;
1164     HINSTANCE16 instance = 0;
1165
1166     if (!(hTask = TASK_SpawnTask( pModule, cmdShow, cmdline + 1, *cmdline, &hThread )))
1167         return 0;
1168
1169     /* Post event to start the task */
1170     PostEvent16( hTask );
1171
1172     /* Wait until we get the instance handle */
1173     do
1174     {
1175         DirectedYield16( hTask );
1176         if (!IsTask16( hTask ))  /* thread has died */
1177         {
1178             DWORD exit_code;
1179             WaitForSingleObject( hThread, INFINITE );
1180             GetExitCodeThread( hThread, &exit_code );
1181             CloseHandle( hThread );
1182             return exit_code;
1183         }
1184         if (!(pTask = GlobalLock16( hTask ))) break;
1185         instance = pTask->hInstance;
1186         GlobalUnlock16( hTask );
1187     } while (!instance);
1188
1189     CloseHandle( hThread );
1190     return instance;
1191 }
1192
1193
1194 /**********************************************************************
1195  *          LoadModule      (KERNEL.45)
1196  */
1197 HINSTANCE16 WINAPI LoadModule16( LPCSTR name, LPVOID paramBlock )
1198 {
1199     BOOL lib_only = !paramBlock || (paramBlock == (LPVOID)-1);
1200     LOADPARAMS16 *params;
1201     HMODULE16 hModule;
1202     NE_MODULE *pModule;
1203     LPSTR cmdline;
1204     WORD cmdShow;
1205
1206     /* Load module */
1207
1208     if ( (hModule = NE_GetModuleByFilename(name) ) != 0 )
1209     {
1210         /* Special case: second instance of an already loaded NE module */
1211
1212         if ( !( pModule = NE_GetPtr( hModule ) ) ) return ERROR_BAD_FORMAT;
1213         if ( pModule->module32 ) return (HINSTANCE16)21;
1214
1215         /* Increment refcount */
1216
1217         pModule->count++;
1218     }
1219     else
1220     {
1221         /* Main case: load first instance of NE module */
1222
1223         if ( (hModule = MODULE_LoadModule16( name, FALSE, lib_only )) < 32 )
1224             return hModule;
1225
1226         if ( !(pModule = NE_GetPtr( hModule )) )
1227             return ERROR_BAD_FORMAT;
1228     }
1229
1230     /* If library module, we just retrieve the instance handle */
1231
1232     if ( ( pModule->ne_flags & NE_FFLAGS_LIBMODULE ) || lib_only )
1233         return NE_GetInstance( pModule );
1234
1235     /*
1236      *  At this point, we need to create a new process.
1237      *
1238      *  pModule points either to an already loaded module, whose refcount
1239      *  has already been incremented (to avoid having the module vanish
1240      *  in the meantime), or else to a stub module which contains only header
1241      *  information.
1242      */
1243     params = (LOADPARAMS16 *)paramBlock;
1244     cmdShow = ((WORD *)MapSL(params->showCmd))[1];
1245     cmdline = MapSL( params->cmdLine );
1246     return NE_CreateThread( pModule, cmdShow, cmdline );
1247 }
1248
1249
1250 /**********************************************************************
1251  *          NE_StartTask
1252  *
1253  * Startup code for a new 16-bit task.
1254  */
1255 DWORD NE_StartTask(void)
1256 {
1257     TDB *pTask = TASK_GetCurrent();
1258     NE_MODULE *pModule = NE_GetPtr( pTask->hModule );
1259     HINSTANCE16 hInstance, hPrevInstance;
1260     SEGTABLEENTRY *pSegTable = NE_SEG_TABLE( pModule );
1261     WORD sp;
1262
1263     if ( pModule->count > 0 )
1264     {
1265         /* Second instance of an already loaded NE module */
1266         /* Note that the refcount was already incremented by the parent */
1267
1268         hPrevInstance = NE_GetInstance( pModule );
1269
1270         if ( pModule->ne_autodata )
1271             if ( NE_CreateSegment( pModule, pModule->ne_autodata ) )
1272                 NE_LoadSegment( pModule, pModule->ne_autodata );
1273
1274         hInstance = NE_GetInstance( pModule );
1275         TRACE("created second instance %04x[%d] of instance %04x.\n", hInstance, pModule->ne_autodata, hPrevInstance);
1276
1277     }
1278     else
1279     {
1280         /* Load first instance of NE module */
1281
1282         pModule->ne_flags |= NE_FFLAGS_GUI;  /* FIXME: is this necessary? */
1283
1284         hInstance = NE_DoLoadModule( pModule );
1285         hPrevInstance = 0;
1286     }
1287
1288     if ( hInstance >= 32 )
1289     {
1290         CONTEXT86 context;
1291
1292         /* Enter instance handles into task struct */
1293
1294         pTask->hInstance = hInstance;
1295         pTask->hPrevInstance = hPrevInstance;
1296
1297         /* Use DGROUP for 16-bit stack */
1298
1299         if (!(sp = OFFSETOF(pModule->ne_sssp)))
1300             sp = pSegTable[SELECTOROF(pModule->ne_sssp)-1].minsize + pModule->ne_stack;
1301         sp &= ~1;
1302         sp -= sizeof(STACK16FRAME);
1303         NtCurrentTeb()->WOW32Reserved = (void *)MAKESEGPTR( GlobalHandleToSel16(hInstance), sp );
1304
1305         /* Registers at initialization must be:
1306          * ax   zero
1307          * bx   stack size in bytes
1308          * cx   heap size in bytes
1309          * si   previous app instance
1310          * di   current app instance
1311          * bp   zero
1312          * es   selector to the PSP
1313          * ds   dgroup of the application
1314          * ss   stack selector
1315          * sp   top of the stack
1316          */
1317         memset( &context, 0, sizeof(context) );
1318         context.SegCs  = GlobalHandleToSel16(pSegTable[SELECTOROF(pModule->ne_csip) - 1].hSeg);
1319         context.SegDs  = GlobalHandleToSel16(pTask->hInstance);
1320         context.SegEs  = pTask->hPDB;
1321         context.SegFs  = wine_get_fs();
1322         context.SegGs  = wine_get_gs();
1323         context.Eip    = OFFSETOF(pModule->ne_csip);
1324         context.Ebx    = pModule->ne_stack;
1325         context.Ecx    = pModule->ne_heap;
1326         context.Edi    = pTask->hInstance;
1327         context.Esi    = pTask->hPrevInstance;
1328
1329         /* Now call 16-bit entry point */
1330
1331         TRACE("Starting main program: cs:ip=%04lx:%04lx ds=%04lx ss:sp=%04x:%04x\n",
1332               context.SegCs, context.Eip, context.SegDs,
1333               SELECTOROF(NtCurrentTeb()->WOW32Reserved),
1334               OFFSETOF(NtCurrentTeb()->WOW32Reserved) );
1335
1336         WOWCallback16Ex( 0, WCB16_REGS, 0, NULL, (DWORD *)&context );
1337         ExitThread( LOWORD(context.Eax) );
1338     }
1339     return hInstance;  /* error code */
1340 }
1341
1342 /***********************************************************************
1343  *           LoadLibrary     (KERNEL.95)
1344  *           LoadLibrary16   (KERNEL32.35)
1345  */
1346 HINSTANCE16 WINAPI LoadLibrary16( LPCSTR libname )
1347 {
1348     return LoadModule16(libname, (LPVOID)-1 );
1349 }
1350
1351
1352 /**********************************************************************
1353  *          MODULE_CallWEP
1354  *
1355  * Call a DLL's WEP, allowing it to shut down.
1356  * FIXME: we always pass the WEP WEP_FREE_DLL, never WEP_SYSTEM_EXIT
1357  */
1358 static BOOL16 MODULE_CallWEP( HMODULE16 hModule )
1359 {
1360     BOOL16 ret;
1361     FARPROC16 WEP = GetProcAddress16( hModule, "WEP" );
1362     if (!WEP) return FALSE;
1363
1364     __TRY
1365     {
1366         WORD args[1];
1367         DWORD dwRet;
1368
1369         args[0] = WEP_FREE_DLL;
1370         WOWCallback16Ex( (DWORD)WEP, WCB16_PASCAL, sizeof(args), args, &dwRet );
1371         ret = LOWORD(dwRet);
1372     }
1373     __EXCEPT(page_fault)
1374     {
1375         WARN("Page fault\n");
1376         ret = 0;
1377     }
1378     __ENDTRY
1379
1380     return ret;
1381 }
1382
1383
1384 /**********************************************************************
1385  *          NE_FreeModule
1386  *
1387  * Implementation of FreeModule16().
1388  */
1389 static BOOL16 NE_FreeModule( HMODULE16 hModule, BOOL call_wep )
1390 {
1391     HMODULE16 *hPrevModule;
1392     NE_MODULE *pModule;
1393     HMODULE16 *pModRef;
1394     int i;
1395
1396     if (!(pModule = NE_GetPtr( hModule ))) return FALSE;
1397     hModule = pModule->self;
1398
1399     TRACE("%04x count %d\n", hModule, pModule->count );
1400
1401     if (((INT16)(--pModule->count)) > 0 ) return TRUE;
1402     else pModule->count = 0;
1403
1404     if (pModule->ne_flags & NE_FFLAGS_BUILTIN)
1405         return FALSE;  /* Can't free built-in module */
1406
1407     if (call_wep && !(pModule->ne_flags & NE_FFLAGS_WIN32))
1408     {
1409         /* Free the objects owned by the DLL module */
1410         NE_CallUserSignalProc( hModule, USIG16_DLL_UNLOAD );
1411
1412         if (pModule->ne_flags & NE_FFLAGS_LIBMODULE)
1413             MODULE_CallWEP( hModule );
1414         else
1415             call_wep = FALSE;  /* We are freeing a task -> no more WEPs */
1416     }
1417
1418
1419     /* Clear magic number just in case */
1420
1421     pModule->ne_magic = pModule->self = 0;
1422     if (!(pModule->ne_flags & NE_FFLAGS_BUILTIN)) UnmapViewOfFile( (void *)pModule->mapping );
1423
1424       /* Remove it from the linked list */
1425
1426     hPrevModule = &hFirstModule;
1427     while (*hPrevModule && (*hPrevModule != hModule))
1428     {
1429         hPrevModule = &(NE_GetPtr( *hPrevModule ))->next;
1430     }
1431     if (*hPrevModule) *hPrevModule = pModule->next;
1432
1433     /* Free the referenced modules */
1434
1435     pModRef = (HMODULE16*)((char *)pModule + pModule->ne_modtab);
1436     for (i = 0; i < pModule->ne_cmod; i++, pModRef++)
1437     {
1438         NE_FreeModule( *pModRef, call_wep );
1439     }
1440
1441     /* Free the module storage */
1442
1443     GlobalFreeAll16( hModule );
1444     return TRUE;
1445 }
1446
1447
1448 /**********************************************************************
1449  *          FreeModule    (KERNEL.46)
1450  */
1451 BOOL16 WINAPI FreeModule16( HMODULE16 hModule )
1452 {
1453     return NE_FreeModule( hModule, TRUE );
1454 }
1455
1456
1457 /***********************************************************************
1458  *           FreeLibrary     (KERNEL.96)
1459  *           FreeLibrary16   (KERNEL32.36)
1460  */
1461 void WINAPI FreeLibrary16( HINSTANCE16 handle )
1462 {
1463     TRACE("%04x\n", handle );
1464     FreeModule16( handle );
1465 }
1466
1467
1468 /***********************************************************************
1469  *          GetModuleHandle16 (KERNEL32.@)
1470  */
1471 HMODULE16 WINAPI GetModuleHandle16( LPCSTR name )
1472 {
1473     HMODULE16   hModule = hFirstModule;
1474     LPSTR       s;
1475     BYTE        len, *name_table;
1476     char        tmpstr[MAX_PATH];
1477     NE_MODULE *pModule;
1478
1479     TRACE("(%s)\n", name);
1480
1481     if (!HIWORD(name)) return GetExePtr(LOWORD(name));
1482
1483     len = strlen(name);
1484     if (!len) return 0;
1485
1486     lstrcpynA(tmpstr, name, sizeof(tmpstr));
1487
1488     /* If 'name' matches exactly the module name of a module:
1489      * Return its handle.
1490      */
1491     for (hModule = hFirstModule; hModule ; hModule = pModule->next)
1492     {
1493         pModule = NE_GetPtr( hModule );
1494         if (!pModule) break;
1495         if (pModule->ne_flags & NE_FFLAGS_WIN32) continue;
1496
1497         name_table = (BYTE *)pModule + pModule->ne_restab;
1498         if ((*name_table == len) && !strncmp(name, name_table+1, len))
1499             return hModule;
1500     }
1501
1502     /* If uppercased 'name' matches exactly the module name of a module:
1503      * Return its handle
1504      */
1505     for (s = tmpstr; *s; s++) *s = RtlUpperChar(*s);
1506
1507     for (hModule = hFirstModule; hModule ; hModule = pModule->next)
1508     {
1509         pModule = NE_GetPtr( hModule );
1510         if (!pModule) break;
1511         if (pModule->ne_flags & NE_FFLAGS_WIN32) continue;
1512
1513         name_table = (BYTE *)pModule + pModule->ne_restab;
1514         /* FIXME: the strncasecmp is WRONG. It should not be case insensitive,
1515          * but case sensitive! (Unfortunately Winword 6 and subdlls have
1516          * lowercased module names, but try to load uppercase DLLs, so this
1517          * 'i' compare is just a quickfix until the loader handles that
1518          * correctly. -MM 990705
1519          */
1520         if ((*name_table == len) && !NE_strncasecmp(tmpstr, name_table+1, len))
1521             return hModule;
1522     }
1523
1524     /* If the base filename of 'name' matches the base filename of the module
1525      * filename of some module (case-insensitive compare):
1526      * Return its handle.
1527      */
1528
1529     /* basename: search backwards in passed name to \ / or : */
1530     s = tmpstr + strlen(tmpstr);
1531     while (s > tmpstr)
1532     {
1533         if (s[-1]=='/' || s[-1]=='\\' || s[-1]==':')
1534                 break;
1535         s--;
1536     }
1537
1538     /* search this in loaded filename list */
1539     for (hModule = hFirstModule; hModule ; hModule = pModule->next)
1540     {
1541         char            *loadedfn;
1542         OFSTRUCT        *ofs;
1543
1544         pModule = NE_GetPtr( hModule );
1545         if (!pModule) break;
1546         if (!pModule->fileinfo) continue;
1547         if (pModule->ne_flags & NE_FFLAGS_WIN32) continue;
1548
1549         ofs = (OFSTRUCT*)((BYTE *)pModule + pModule->fileinfo);
1550         loadedfn = ((char*)ofs->szPathName) + strlen(ofs->szPathName);
1551         /* basename: search backwards in pathname to \ / or : */
1552         while (loadedfn > (char*)ofs->szPathName)
1553         {
1554             if (loadedfn[-1]=='/' || loadedfn[-1]=='\\' || loadedfn[-1]==':')
1555                     break;
1556             loadedfn--;
1557         }
1558         /* case insensitive compare ... */
1559         if (!NE_strcasecmp(loadedfn, s))
1560             return hModule;
1561     }
1562     return 0;
1563 }
1564
1565
1566 /**********************************************************************
1567  *          GetModuleName    (KERNEL.27)
1568  */
1569 BOOL16 WINAPI GetModuleName16( HINSTANCE16 hinst, LPSTR buf, INT16 count )
1570 {
1571     NE_MODULE *pModule;
1572     BYTE *p;
1573
1574     if (!(pModule = NE_GetPtr( hinst ))) return FALSE;
1575     p = (BYTE *)pModule + pModule->ne_restab;
1576     if (count > *p) count = *p + 1;
1577     if (count > 0)
1578     {
1579         memcpy( buf, p + 1, count - 1 );
1580         buf[count-1] = '\0';
1581     }
1582     return TRUE;
1583 }
1584
1585
1586 /**********************************************************************
1587  *          GetModuleFileName      (KERNEL.49)
1588  *
1589  * Comment: see GetModuleFileNameA
1590  *
1591  * Even if invoked by second instance of a program,
1592  * it still returns path of first one.
1593  */
1594 INT16 WINAPI GetModuleFileName16( HINSTANCE16 hModule, LPSTR lpFileName,
1595                                   INT16 nSize )
1596 {
1597     NE_MODULE *pModule;
1598
1599     /* Win95 does not query hModule if set to 0 !
1600      * Is this wrong or maybe Win3.1 only ? */
1601     if (!hModule) hModule = GetCurrentTask();
1602
1603     if (!(pModule = NE_GetPtr( hModule ))) return 0;
1604     lstrcpynA( lpFileName, NE_MODULE_NAME(pModule), nSize );
1605     if (pModule->ne_expver >= 0x400)
1606         GetLongPathNameA(NE_MODULE_NAME(pModule), lpFileName, nSize);
1607     TRACE("%04x -> '%s'\n", hModule, lpFileName );
1608     return strlen(lpFileName);
1609 }
1610
1611
1612 /**********************************************************************
1613  *          GetModuleUsage    (KERNEL.48)
1614  */
1615 INT16 WINAPI GetModuleUsage16( HINSTANCE16 hModule )
1616 {
1617     NE_MODULE *pModule = NE_GetPtr( hModule );
1618     return pModule ? pModule->count : 0;
1619 }
1620
1621
1622 /**********************************************************************
1623  *          GetExpWinVer    (KERNEL.167)
1624  */
1625 WORD WINAPI GetExpWinVer16( HMODULE16 hModule )
1626 {
1627     NE_MODULE *pModule = NE_GetPtr( hModule );
1628     if ( !pModule ) return 0;
1629
1630     /*
1631      * For built-in modules, fake the expected version the module should
1632      * have according to the Windows version emulated by Wine
1633      */
1634     if ( !pModule->ne_expver )
1635     {
1636         OSVERSIONINFOA versionInfo;
1637         versionInfo.dwOSVersionInfoSize = sizeof(versionInfo);
1638
1639         if ( GetVersionExA( &versionInfo ) )
1640             pModule->ne_expver =
1641                      (versionInfo.dwMajorVersion & 0xff) << 8
1642                    | (versionInfo.dwMinorVersion & 0xff);
1643     }
1644
1645     return pModule->ne_expver;
1646 }
1647
1648
1649 /***********************************************************************
1650  *           WinExec     (KERNEL.166)
1651  */
1652 HINSTANCE16 WINAPI WinExec16( LPCSTR lpCmdLine, UINT16 nCmdShow )
1653 {
1654     LPCSTR p, args = NULL;
1655     LPCSTR name_beg, name_end;
1656     LPSTR name, cmdline;
1657     int arglen;
1658     HINSTANCE16 ret;
1659     char buffer[MAX_PATH];
1660
1661     if (*lpCmdLine == '"') /* has to be only one and only at beginning ! */
1662     {
1663         name_beg = lpCmdLine+1;
1664         p = strchr ( lpCmdLine+1, '"' );
1665         if (p)
1666         {
1667             name_end = p;
1668             args = strchr ( p, ' ' );
1669         }
1670         else /* yes, even valid with trailing '"' missing */
1671             name_end = lpCmdLine+strlen(lpCmdLine);
1672     }
1673     else
1674     {
1675         name_beg = lpCmdLine;
1676         args = strchr( lpCmdLine, ' ' );
1677         name_end = args ? args : lpCmdLine+strlen(lpCmdLine);
1678     }
1679
1680     if ((name_beg == lpCmdLine) && (!args))
1681     { /* just use the original cmdline string as file name */
1682         name = (LPSTR)lpCmdLine;
1683     }
1684     else
1685     {
1686         if (!(name = HeapAlloc( GetProcessHeap(), 0, name_end - name_beg + 1 )))
1687             return ERROR_NOT_ENOUGH_MEMORY;
1688         memcpy( name, name_beg, name_end - name_beg );
1689         name[name_end - name_beg] = '\0';
1690     }
1691
1692     if (args)
1693     {
1694         args++;
1695         arglen = strlen(args);
1696         cmdline = HeapAlloc( GetProcessHeap(), 0, 2 + arglen );
1697         cmdline[0] = (BYTE)arglen;
1698         strcpy( cmdline + 1, args );
1699     }
1700     else
1701     {
1702         cmdline = HeapAlloc( GetProcessHeap(), 0, 2 );
1703         cmdline[0] = cmdline[1] = 0;
1704     }
1705
1706     TRACE("name: '%s', cmdline: '%.*s'\n", name, cmdline[0], &cmdline[1]);
1707
1708     if (SearchPathA( NULL, name, ".exe", sizeof(buffer), buffer, NULL ))
1709     {
1710         LOADPARAMS16 params;
1711         WORD showCmd[2];
1712         showCmd[0] = 2;
1713         showCmd[1] = nCmdShow;
1714
1715         params.hEnvironment = 0;
1716         params.cmdLine = MapLS( cmdline );
1717         params.showCmd = MapLS( showCmd );
1718         params.reserved = 0;
1719
1720         ret = LoadModule16( buffer, &params );
1721         UnMapLS( params.cmdLine );
1722         UnMapLS( params.showCmd );
1723     }
1724     else ret = GetLastError();
1725
1726     HeapFree( GetProcessHeap(), 0, cmdline );
1727     if (name != lpCmdLine) HeapFree( GetProcessHeap(), 0, name );
1728
1729     if (ret == 21 || ret == ERROR_BAD_FORMAT)  /* 32-bit module or unknown executable*/
1730     {
1731         DWORD count;
1732         ReleaseThunkLock( &count );
1733         ret = LOWORD( WinExec( lpCmdLine, nCmdShow ) );
1734         RestoreThunkLock( count );
1735     }
1736     return ret;
1737 }
1738
1739 /***********************************************************************
1740  *           GetProcAddress   (KERNEL.50)
1741  */
1742 FARPROC16 WINAPI GetProcAddress16( HMODULE16 hModule, LPCSTR name )
1743 {
1744     WORD ordinal;
1745     FARPROC16 ret;
1746
1747     if (!hModule) hModule = GetCurrentTask();
1748     hModule = GetExePtr( hModule );
1749
1750     if (HIWORD(name) != 0)
1751     {
1752         ordinal = NE_GetOrdinal( hModule, name );
1753         TRACE("%04x '%s'\n", hModule, name );
1754     }
1755     else
1756     {
1757         ordinal = LOWORD(name);
1758         TRACE("%04x %04x\n", hModule, ordinal );
1759     }
1760     if (!ordinal) return (FARPROC16)0;
1761
1762     ret = NE_GetEntryPoint( hModule, ordinal );
1763
1764     TRACE("returning %08x\n", (UINT)ret );
1765     return ret;
1766 }
1767
1768
1769 /***************************************************************************
1770  *              HasGPHandler                    (KERNEL.338)
1771  */
1772 SEGPTR WINAPI HasGPHandler16( SEGPTR address )
1773 {
1774     HMODULE16 hModule;
1775     int gpOrdinal;
1776     SEGPTR gpPtr;
1777     GPHANDLERDEF *gpHandler;
1778
1779     if (    (hModule = FarGetOwner16( SELECTOROF(address) )) != 0
1780          && (gpOrdinal = NE_GetOrdinal( hModule, "__GP" )) != 0
1781          && (gpPtr = (SEGPTR)NE_GetEntryPointEx( hModule, gpOrdinal, FALSE )) != 0
1782          && !IsBadReadPtr16( gpPtr, sizeof(GPHANDLERDEF) )
1783          && (gpHandler = MapSL( gpPtr )) != NULL )
1784     {
1785         while (gpHandler->selector)
1786         {
1787             if (    SELECTOROF(address) == gpHandler->selector
1788                  && OFFSETOF(address)   >= gpHandler->rangeStart
1789                  && OFFSETOF(address)   <  gpHandler->rangeEnd  )
1790                 return MAKESEGPTR( gpHandler->selector, gpHandler->handler );
1791             gpHandler++;
1792         }
1793     }
1794
1795     return 0;
1796 }
1797
1798
1799 /**********************************************************************
1800  *          GetModuleHandle    (KERNEL.47)
1801  *
1802  * Find a module from a module name.
1803  *
1804  * NOTE: The current implementation works the same way the Windows 95 one
1805  *       does. Do not try to 'fix' it, fix the callers.
1806  *       + It does not do ANY extension handling (except that strange .EXE bit)!
1807  *       + It does not care about paths, just about basenames. (same as Windows)
1808  *
1809  * RETURNS
1810  *   LOWORD:
1811  *      the win16 module handle if found
1812  *      0 if not
1813  *   HIWORD (undocumented, see "Undocumented Windows", chapter 5):
1814  *      Always hFirstModule
1815  */
1816 DWORD WINAPI WIN16_GetModuleHandle( SEGPTR name )
1817 {
1818     if (HIWORD(name) == 0)
1819         return MAKELONG(GetExePtr( (HINSTANCE16)name), hFirstModule );
1820     return MAKELONG(GetModuleHandle16( MapSL(name)), hFirstModule );
1821 }
1822
1823 /**********************************************************************
1824  *          NE_GetModuleByFilename
1825  */
1826 static HMODULE16 NE_GetModuleByFilename( LPCSTR name )
1827 {
1828     HMODULE16   hModule;
1829     LPSTR       s, p;
1830     BYTE        len, *name_table;
1831     char        tmpstr[MAX_PATH];
1832     NE_MODULE *pModule;
1833
1834     lstrcpynA(tmpstr, name, sizeof(tmpstr));
1835
1836     /* If the base filename of 'name' matches the base filename of the module
1837      * filename of some module (case-insensitive compare):
1838      * Return its handle.
1839      */
1840
1841     /* basename: search backwards in passed name to \ / or : */
1842     s = tmpstr + strlen(tmpstr);
1843     while (s > tmpstr)
1844     {
1845         if (s[-1]=='/' || s[-1]=='\\' || s[-1]==':')
1846                 break;
1847         s--;
1848     }
1849
1850     /* search this in loaded filename list */
1851     for (hModule = hFirstModule; hModule ; hModule = pModule->next)
1852     {
1853         char            *loadedfn;
1854         OFSTRUCT        *ofs;
1855
1856         pModule = NE_GetPtr( hModule );
1857         if (!pModule) break;
1858         if (!pModule->fileinfo) continue;
1859         if (pModule->ne_flags & NE_FFLAGS_WIN32) continue;
1860
1861         ofs = (OFSTRUCT*)((BYTE *)pModule + pModule->fileinfo);
1862         loadedfn = ((char*)ofs->szPathName) + strlen(ofs->szPathName);
1863         /* basename: search backwards in pathname to \ / or : */
1864         while (loadedfn > (char*)ofs->szPathName)
1865         {
1866             if (loadedfn[-1]=='/' || loadedfn[-1]=='\\' || loadedfn[-1]==':')
1867                     break;
1868             loadedfn--;
1869         }
1870         /* case insensitive compare ... */
1871         if (!NE_strcasecmp(loadedfn, s))
1872             return hModule;
1873     }
1874     /* If basename (without ext) matches the module name of a module:
1875      * Return its handle.
1876      */
1877
1878     if ( (p = strrchr( s, '.' )) != NULL ) *p = '\0';
1879     len = strlen(s);
1880
1881     for (hModule = hFirstModule; hModule ; hModule = pModule->next)
1882     {
1883         pModule = NE_GetPtr( hModule );
1884         if (!pModule) break;
1885         if (pModule->ne_flags & NE_FFLAGS_WIN32) continue;
1886
1887         name_table = (BYTE *)pModule + pModule->ne_restab;
1888         if ((*name_table == len) && !NE_strncasecmp(s, name_table+1, len))
1889             return hModule;
1890     }
1891
1892     return 0;
1893 }
1894
1895 /***********************************************************************
1896  *           GetProcAddress16   (KERNEL32.37)
1897  * Get procaddress in 16bit module from win32... (kernel32 undoc. ordinal func)
1898  */
1899 FARPROC16 WINAPI WIN32_GetProcAddress16( HMODULE hModule, LPCSTR name )
1900 {
1901     if (!hModule) return 0;
1902     if (HIWORD(hModule))
1903     {
1904         WARN("hModule is Win32 handle (%p)\n", hModule );
1905         return 0;
1906     }
1907     return GetProcAddress16( LOWORD(hModule), name );
1908 }
1909
1910 /**********************************************************************
1911  *          ModuleFirst    (TOOLHELP.59)
1912  */
1913 BOOL16 WINAPI ModuleFirst16( MODULEENTRY *lpme )
1914 {
1915     lpme->wNext = hFirstModule;
1916     return ModuleNext16( lpme );
1917 }
1918
1919
1920 /**********************************************************************
1921  *          ModuleNext    (TOOLHELP.60)
1922  */
1923 BOOL16 WINAPI ModuleNext16( MODULEENTRY *lpme )
1924 {
1925     NE_MODULE *pModule;
1926     char *name;
1927
1928     if (!lpme->wNext) return FALSE;
1929     if (!(pModule = NE_GetPtr( lpme->wNext ))) return FALSE;
1930     name = (char *)pModule + pModule->ne_restab;
1931     memcpy( lpme->szModule, name + 1, min(*name, MAX_MODULE_NAME) );
1932     lpme->szModule[min(*name, MAX_MODULE_NAME)] = '\0';
1933     lpme->hModule = lpme->wNext;
1934     lpme->wcUsage = pModule->count;
1935     lstrcpynA( lpme->szExePath, NE_MODULE_NAME(pModule), sizeof(lpme->szExePath) );
1936     lpme->wNext = pModule->next;
1937     return TRUE;
1938 }
1939
1940
1941 /**********************************************************************
1942  *          ModuleFindName    (TOOLHELP.61)
1943  */
1944 BOOL16 WINAPI ModuleFindName16( MODULEENTRY *lpme, LPCSTR name )
1945 {
1946     lpme->wNext = GetModuleHandle16( name );
1947     return ModuleNext16( lpme );
1948 }
1949
1950
1951 /**********************************************************************
1952  *          ModuleFindHandle    (TOOLHELP.62)
1953  */
1954 BOOL16 WINAPI ModuleFindHandle16( MODULEENTRY *lpme, HMODULE16 hModule )
1955 {
1956     hModule = GetExePtr( hModule );
1957     lpme->wNext = hModule;
1958     return ModuleNext16( lpme );
1959 }
1960
1961
1962 /***************************************************************************
1963  *          IsRomModule    (KERNEL.323)
1964  */
1965 BOOL16 WINAPI IsRomModule16( HMODULE16 unused )
1966 {
1967     return FALSE;
1968 }
1969
1970 /***************************************************************************
1971  *          IsRomFile    (KERNEL.326)
1972  */
1973 BOOL16 WINAPI IsRomFile16( HFILE16 unused )
1974 {
1975     return FALSE;
1976 }
1977
1978 /***********************************************************************
1979  *           create_dummy_module
1980  *
1981  * Create a dummy NE module for Win32 or Winelib.
1982  */
1983 static HMODULE16 create_dummy_module( HMODULE module32 )
1984 {
1985     HMODULE16 hModule;
1986     NE_MODULE *pModule;
1987     SEGTABLEENTRY *pSegment;
1988     char *pStr,*s;
1989     unsigned int len;
1990     const char* basename;
1991     OFSTRUCT *ofs;
1992     int of_size, size;
1993     char filename[MAX_PATH];
1994     IMAGE_NT_HEADERS *nt = RtlImageNtHeader( module32 );
1995
1996     if (!nt) return ERROR_BAD_FORMAT;
1997
1998     /* Extract base filename */
1999     len = GetModuleFileNameA( module32, filename, sizeof(filename) );
2000     if (!len || len >= sizeof(filename)) return ERROR_BAD_FORMAT;
2001     basename = strrchr(filename, '\\');
2002     if (!basename) basename = filename;
2003     else basename++;
2004     len = strlen(basename);
2005     if ((s = strchr(basename, '.'))) len = s - basename;
2006
2007     /* Allocate module */
2008     of_size = sizeof(OFSTRUCT) - sizeof(ofs->szPathName)
2009                     + strlen(filename) + 1;
2010     size = sizeof(NE_MODULE) +
2011                  /* loaded file info */
2012                  ((of_size + 3) & ~3) +
2013                  /* segment table: DS,CS */
2014                  2 * sizeof(SEGTABLEENTRY) +
2015                  /* name table */
2016                  len + 2 +
2017                  /* several empty tables */
2018                  8;
2019
2020     hModule = GlobalAlloc16( GMEM_MOVEABLE | GMEM_ZEROINIT, size );
2021     if (!hModule) return ERROR_BAD_FORMAT;
2022
2023     FarSetOwner16( hModule, hModule );
2024     pModule = (NE_MODULE *)GlobalLock16( hModule );
2025
2026     /* Set all used entries */
2027     pModule->ne_magic         = IMAGE_OS2_SIGNATURE;
2028     pModule->count            = 1;
2029     pModule->next             = 0;
2030     pModule->ne_flags         = NE_FFLAGS_WIN32;
2031     pModule->ne_autodata      = 0;
2032     pModule->ne_sssp          = MAKESEGPTR( 0, 1 );
2033     pModule->ne_csip          = MAKESEGPTR( 0, 2 );
2034     pModule->ne_heap          = 0;
2035     pModule->ne_stack         = 0;
2036     pModule->ne_cseg          = 2;
2037     pModule->ne_cmod          = 0;
2038     pModule->ne_cbnrestab     = 0;
2039     pModule->fileinfo         = sizeof(NE_MODULE);
2040     pModule->ne_exetyp        = NE_OSFLAGS_WINDOWS;
2041     pModule->self             = hModule;
2042     pModule->module32         = module32;
2043
2044     /* Set version and flags */
2045     pModule->ne_expver = ((nt->OptionalHeader.MajorSubsystemVersion & 0xff) << 8 ) |
2046                           (nt->OptionalHeader.MinorSubsystemVersion & 0xff);
2047     if (nt->FileHeader.Characteristics & IMAGE_FILE_DLL)
2048         pModule->ne_flags |= NE_FFLAGS_LIBMODULE | NE_FFLAGS_SINGLEDATA;
2049
2050     /* Set loaded file information */
2051     ofs = (OFSTRUCT *)(pModule + 1);
2052     memset( ofs, 0, of_size );
2053     ofs->cBytes = of_size < 256 ? of_size : 255;   /* FIXME */
2054     strcpy( ofs->szPathName, filename );
2055
2056     pSegment = (SEGTABLEENTRY*)((char*)(pModule + 1) + ((of_size + 3) & ~3));
2057     pModule->ne_segtab = (char *)pSegment - (char *)pModule;
2058     /* Data segment */
2059     pSegment->size    = 0;
2060     pSegment->flags   = NE_SEGFLAGS_DATA;
2061     pSegment->minsize = 0x1000;
2062     pSegment++;
2063     /* Code segment */
2064     pSegment->flags   = 0;
2065     pSegment++;
2066
2067     /* Module name */
2068     pStr = (char *)pSegment;
2069     pModule->ne_restab = pStr - (char *)pModule;
2070     assert(len<256);
2071     *pStr = len;
2072     lstrcpynA( pStr+1, basename, len+1 );
2073     pStr += len+2;
2074
2075     /* All tables zero terminated */
2076     pModule->ne_rsrctab = pModule->ne_imptab = pModule->ne_enttab = (char *)pStr - (char *)pModule;
2077
2078     NE_RegisterModule( pModule );
2079     LoadLibraryA( filename );  /* increment the ref count of the 32-bit module */
2080     return hModule;
2081 }
2082
2083 /***********************************************************************
2084  *           PrivateLoadLibrary       (KERNEL32.@)
2085  *
2086  * FIXME: rough guesswork, don't know what "Private" means
2087  */
2088 HINSTANCE16 WINAPI PrivateLoadLibrary(LPCSTR libname)
2089 {
2090     return LoadLibrary16(libname);
2091 }
2092
2093 /***********************************************************************
2094  *           PrivateFreeLibrary       (KERNEL32.@)
2095  *
2096  * FIXME: rough guesswork, don't know what "Private" means
2097  */
2098 void WINAPI PrivateFreeLibrary(HINSTANCE16 handle)
2099 {
2100     FreeLibrary16(handle);
2101 }
2102
2103 /***********************************************************************
2104  *           LoadLibrary32        (KERNEL.452)
2105  *           LoadSystemLibrary32  (KERNEL.482)
2106  */
2107 HMODULE WINAPI LoadLibrary32_16( LPCSTR libname )
2108 {
2109     HMODULE hModule;
2110     DWORD count;
2111
2112     ReleaseThunkLock( &count );
2113     hModule = LoadLibraryA( libname );
2114     RestoreThunkLock( count );
2115     return hModule;
2116 }
2117
2118 /***************************************************************************
2119  *              MapHModuleLS                    (KERNEL32.@)
2120  */
2121 HMODULE16 WINAPI MapHModuleLS(HMODULE hmod)
2122 {
2123     HMODULE16 ret;
2124     NE_MODULE *pModule;
2125
2126     if (!hmod)
2127         return TASK_GetCurrent()->hInstance;
2128     if (!HIWORD(hmod))
2129         return LOWORD(hmod); /* we already have a 16 bit module handle */
2130     pModule = (NE_MODULE*)GlobalLock16(hFirstModule);
2131     while (pModule)  {
2132         if (pModule->module32 == hmod)
2133             return pModule->self;
2134         pModule = (NE_MODULE*)GlobalLock16(pModule->next);
2135     }
2136     if ((ret = create_dummy_module( hmod )) < 32)
2137     {
2138         SetLastError(ret);
2139         ret = 0;
2140     }
2141     return ret;
2142 }
2143
2144 /***************************************************************************
2145  *              MapHModuleSL                    (KERNEL32.@)
2146  */
2147 HMODULE WINAPI MapHModuleSL(HMODULE16 hmod)
2148 {
2149     NE_MODULE *pModule;
2150
2151     if (!hmod) {
2152         TDB *pTask = TASK_GetCurrent();
2153         hmod = pTask->hModule;
2154     }
2155     pModule = (NE_MODULE*)GlobalLock16(hmod);
2156     if ((pModule->ne_magic != IMAGE_OS2_SIGNATURE) || !(pModule->ne_flags & NE_FFLAGS_WIN32))
2157         return 0;
2158     return pModule->module32;
2159 }
2160
2161 /***************************************************************************
2162  *              MapHInstLS                      (KERNEL32.@)
2163  *              MapHInstLS                      (KERNEL.472)
2164  */
2165 void WINAPI __regs_MapHInstLS( CONTEXT86 *context )
2166 {
2167     context->Eax = MapHModuleLS( (HMODULE)context->Eax );
2168 }
2169 #ifdef DEFINE_REGS_ENTRYPOINT
2170 DEFINE_REGS_ENTRYPOINT( MapHInstLS, 0, 0 );
2171 #endif
2172
2173 /***************************************************************************
2174  *              MapHInstSL                      (KERNEL32.@)
2175  *              MapHInstSL                      (KERNEL.473)
2176  */
2177 void WINAPI __regs_MapHInstSL( CONTEXT86 *context )
2178 {
2179     context->Eax = (DWORD)MapHModuleSL( context->Eax );
2180 }
2181 #ifdef DEFINE_REGS_ENTRYPOINT
2182 DEFINE_REGS_ENTRYPOINT( MapHInstSL, 0, 0 );
2183 #endif
2184
2185 /***************************************************************************
2186  *              MapHInstLS_PN                   (KERNEL32.@)
2187  */
2188 void WINAPI __regs_MapHInstLS_PN( CONTEXT86 *context )
2189 {
2190     if (context->Eax) context->Eax = MapHModuleLS( (HMODULE)context->Eax );
2191 }
2192 #ifdef DEFINE_REGS_ENTRYPOINT
2193 DEFINE_REGS_ENTRYPOINT( MapHInstLS_PN, 0, 0 );
2194 #endif
2195
2196 /***************************************************************************
2197  *              MapHInstSL_PN                   (KERNEL32.@)
2198  */
2199 void WINAPI __regs_MapHInstSL_PN( CONTEXT86 *context )
2200 {
2201     if (context->Eax) context->Eax = (DWORD)MapHModuleSL( context->Eax );
2202 }
2203 #ifdef DEFINE_REGS_ENTRYPOINT
2204 DEFINE_REGS_ENTRYPOINT( MapHInstSL_PN, 0, 0 );
2205 #endif