text: /*
   * NE modules
   *
   * Copyright 1995 Alexandre Julliard
   *
   * This library is free software; you can redistribute it and/or
   * modify it under the terms of the GNU Lesser General Public
   * License as published by the Free Software Foundation; either
   * version 2.1 of the License, or (at your option) any later version.
   *
   * This library is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   * Lesser General Public License for more details.
   *
   * You should have received a copy of the GNU Lesser General Public
   * License along with this library; if not, write to the Free Software
   * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
   */
  
  #include "config.h"
  #include "wine/port.h"
  
  #include <assert.h>
  #include <fcntl.h>
  #include <stdarg.h>
  #include <stdio.h>
  #include <stdlib.h>
  #include <string.h>
  #ifdef HAVE_UNISTD_H
  # include <unistd.h>
  #endif
  #include <ctype.h>
  
  #include "windef.h"
  #include "wine/winbase16.h"
  #include "wownt32.h"
  #include "winternl.h"
  #include "kernel16_private.h"
  #include "wine/exception.h"
  #include "wine/debug.h"
  
  WINE_DEFAULT_DEBUG_CHANNEL(module);
  WINE_DECLARE_DEBUG_CHANNEL(loaddll);
  WINE_DECLARE_DEBUG_CHANNEL(relay);
  WINE_DECLARE_DEBUG_CHANNEL(winediag);
  
  #include "pshpack1.h"
  typedef struct _GPHANDLERDEF
  {
      WORD selector;
      WORD rangeStart;
      WORD rangeEnd;
      WORD handler;
  } GPHANDLERDEF;
  #include "poppack.h"
  
  /*
   * Segment table entry
   */
  struct ne_segment_table_entry_s
  {
      WORD seg_data_offset;   /* Sector offset of segment data	*/
      WORD seg_data_length;   /* Length of segment data		*/
      WORD seg_flags;         /* Flags associated with this segment	*/
      WORD min_alloc;         /* Minimum allocation size for this	*/
  };
  
  #define hFirstModule (pThhook->hExeHead)
  
  static HINSTANCE16 NE_LoadModule( LPCSTR name, BOOL lib_only );
  static BOOL16 NE_FreeModule( HMODULE16 hModule, BOOL call_wep );
  
  static HINSTANCE16 MODULE_LoadModule16( LPCSTR libname, BOOL implicit, BOOL lib_only );
  
  static HMODULE16 NE_GetModuleByFilename( LPCSTR name );
  
  
  /* patch all the flat cs references of the code segment if necessary */
  static inline void patch_code_segment( NE_MODULE *pModule )
  {
      int i;
      CALLFROM16 *call;
      SEGTABLEENTRY *pSeg = NE_SEG_TABLE( pModule );
  
      for (i = 0; i < pModule->ne_cseg; i++, pSeg++)
          if (!(pSeg->flags & NE_SEGFLAGS_DATA)) break;  /* found the code segment */
  
      call = GlobalLock16( pSeg->hSeg );
  
      /* patch glue code address and code selector */
      for (i = 0; call[i].pushl == 0x68; i++)
      {
          if (call[i].ret[0] == 0xca66 || call[i].ret[0] == 0xcb66)  /* register entry point? */
              call[i].glue = __wine_call_from_16_regs;
          else
              call[i].glue = __wine_call_from_16;
          call[i].flatcs = wine_get_cs();
      }
  
      if (TRACE_ON(relay))  /* patch relay functions to all point to relay_call_from_16 */
          for (i = 0; call[i].pushl == 0x68; i++) call[i].relay = relay_call_from_16;
  }
  
  
  /***********************************************************************
   *           contains_path
   */
  static inline BOOL contains_path( LPCSTR name )
  {
      return ((*name && (name[1] == ':')) || strchr(name, '/') || strchr(name, '\\'));
  }
  
  
  /***********************************************************************
   *           NE_GetPtr
   */
  NE_MODULE *NE_GetPtr( HMODULE16 hModule )
  {
      return GlobalLock16( GetExePtr(hModule) );
  }
  
  
  /**********************************************************************
   *           NE_RegisterModule
   */
  static void NE_RegisterModule( NE_MODULE *pModule )
  {
      pModule->next = hFirstModule;
      hFirstModule = pModule->self;
  }
  
  
  /***********************************************************************
   *           NE_DumpModule
   */
  void NE_DumpModule( HMODULE16 hModule )
  {
      int i, ordinal;
      SEGTABLEENTRY *pSeg;
      BYTE *pstr;
      WORD *pword;
      NE_MODULE *pModule;
      ET_BUNDLE *bundle;
      ET_ENTRY *entry;
  
      if (!(pModule = NE_GetPtr( hModule )))
      {
          ERR( "**** %04x is not a module handle\n", hModule );
          return;
      }
  
        /* Dump the module info */
      TRACE( "---\n" );
      TRACE( "Module %04x:\n", hModule );
      TRACE( "count=%d flags=%04x heap=%d stack=%d\n",
               pModule->count, pModule->ne_flags,
               pModule->ne_heap, pModule->ne_stack );
      TRACE( "cs:ip=%04x:%04x ss:sp=%04x:%04x ds=%04x nb seg=%d modrefs=%d\n",
               SELECTOROF(pModule->ne_csip), OFFSETOF(pModule->ne_csip),
               SELECTOROF(pModule->ne_sssp), OFFSETOF(pModule->ne_sssp),
               pModule->ne_autodata, pModule->ne_cseg, pModule->ne_cmod );
      TRACE( "os_flags=%d swap_area=%d version=%04x\n",
               pModule->ne_exetyp, pModule->ne_swaparea, pModule->ne_expver );
      if (pModule->ne_flags & NE_FFLAGS_WIN32)
          TRACE( "PE module=%p\n", pModule->module32 );
  
        /* Dump the file info */
      TRACE( "---\n" );
      TRACE( "Filename: '%s'\n", NE_MODULE_NAME(pModule) );
  
        /* Dump the segment table */
      TRACE( "---\n" );
      TRACE( "Segment table:\n" );
      pSeg = NE_SEG_TABLE( pModule );
      for (i = 0; i < pModule->ne_cseg; i++, pSeg++)
          TRACE( "%02x: pos=%d size=%d flags=%04x minsize=%d hSeg=%04x\n",
                   i + 1, pSeg->filepos, pSeg->size, pSeg->flags,
                   pSeg->minsize, pSeg->hSeg );
  
        /* Dump the resource table */
      TRACE( "---\n" );
      TRACE( "Resource table:\n" );
      if (pModule->ne_rsrctab)
      {
          pword = (WORD *)((BYTE *)pModule + pModule->ne_rsrctab);
          TRACE( "Alignment: %d\n", *pword++ );
          while (*pword)
          {
              NE_TYPEINFO *ptr = (NE_TYPEINFO *)pword;
              NE_NAMEINFO *pname = (NE_NAMEINFO *)(ptr + 1);
              TRACE( "id=%04x count=%d\n", ptr->type_id, ptr->count );
              for (i = 0; i < ptr->count; i++, pname++)
                  TRACE( "offset=%d len=%d id=%04x\n",
  		      pname->offset, pname->length, pname->id );
              pword = (WORD *)pname;
          }
      }
      else TRACE( "None\n" );
  
        /* Dump the resident name table */
      TRACE( "---\n" );
      TRACE( "Resident-name table:\n" );
      pstr = (BYTE*) pModule + pModule->ne_restab;
      while (*pstr)
      {
          TRACE( "%*.*s: %d\n", *pstr, *pstr, pstr + 1,
                   *(WORD *)(pstr + *pstr + 1) );
          pstr += *pstr + 1 + sizeof(WORD);
      }
  
        /* Dump the module reference table */
      TRACE( "---\n" );
      TRACE( "Module ref table:\n" );
      if (pModule->ne_modtab)
      {
          pword = (WORD *)((BYTE *)pModule + pModule->ne_modtab);
          for (i = 0; i < pModule->ne_cmod; i++, pword++)
          {
              char name[10];
              GetModuleName16( *pword, name, sizeof(name) );
              TRACE( "%d: %04x -> '%s'\n", i, *pword, name );
          }
      }
      else TRACE( "None\n" );
  
        /* Dump the entry table */
      TRACE( "---\n" );
      TRACE( "Entry table:\n" );
      bundle = (ET_BUNDLE *)((BYTE *)pModule+pModule->ne_enttab);
      do {
          entry = (ET_ENTRY *)((BYTE *)bundle+6);
          TRACE( "Bundle %d-%d: %02x\n", bundle->first, bundle->last, entry->type);
          ordinal = bundle->first;
          while (ordinal < bundle->last)
          {
              if (entry->type == 0xff)
                  TRACE("%d: %02x:%04x (moveable)\n", ordinal++, entry->segnum, entry->offs);
              else
                  TRACE("%d: %02x:%04x (fixed)\n", ordinal++, entry->segnum, entry->offs);
              entry++;
          }
      } while ( (bundle->next) && (bundle = ((ET_BUNDLE *)((BYTE *)pModule + bundle->next))) );
  
      /* Dump the non-resident names table */
      TRACE( "---\n" );
      TRACE( "Non-resident names table:\n" );
      if (pModule->nrname_handle)
      {
          pstr = GlobalLock16( pModule->nrname_handle );
          while (*pstr)
          {
              TRACE( "%*.*s: %d\n", *pstr, *pstr, pstr + 1,
                     *(WORD *)(pstr + *pstr + 1) );
              pstr += *pstr + 1 + sizeof(WORD);
          }
      }
      TRACE( "\n" );
  }
  
  
  /***********************************************************************
   *           NE_WalkModules
   *
   * Walk the module list and print the modules.
   */
  void NE_WalkModules(void)
  {
      HMODULE16 hModule = hFirstModule;
      MESSAGE( "Module Flags Name\n" );
      while (hModule)
      {
          NE_MODULE *pModule = NE_GetPtr( hModule );
          if (!pModule)
          {
              MESSAGE( "Bad module %04x in list\n", hModule );
              return;
          }
          MESSAGE( " %04x  %04x  %.*s\n", hModule, pModule->ne_flags,
                   *((char *)pModule + pModule->ne_restab),
                   (char *)pModule + pModule->ne_restab + 1 );
          hModule = pModule->next;
      }
  }
  
  
  /***********************************************************************
   *           NE_InitResourceHandler
   *
   * Fill in 'resloader' fields in the resource table.
   */
  static void NE_InitResourceHandler( HMODULE16 hModule )
  {
      static FARPROC16 proc;
  
      NE_TYPEINFO *pTypeInfo;
      NE_MODULE *pModule;
  
      if (!(pModule = NE_GetPtr( hModule )) || !pModule->ne_rsrctab) return;
  
      TRACE("InitResourceHandler[%04x]\n", hModule );
  
      if (!proc) proc = GetProcAddress16( GetModuleHandle16("KERNEL"), "DefResourceHandler" );
  
      pTypeInfo = (NE_TYPEINFO *)((char *)pModule + pModule->ne_rsrctab + 2);
      while(pTypeInfo->type_id)
      {
          pTypeInfo->resloader = proc;
          pTypeInfo = (NE_TYPEINFO *)((char*)(pTypeInfo + 1) + pTypeInfo->count * sizeof(NE_NAMEINFO));
      }
  }
  
  
  /***********************************************************************
   *           NE_GetOrdinal
   *
   * Lookup the ordinal for a given name.
   */
  WORD NE_GetOrdinal( HMODULE16 hModule, const char *name )
  {
      char buffer[256], *p;
      BYTE *cpnt;
      BYTE len;
      NE_MODULE *pModule;
  
      if (!(pModule = NE_GetPtr( hModule ))) return 0;
      if (pModule->ne_flags & NE_FFLAGS_WIN32) return 0;
  
      TRACE("(%04x,'%s')\n", hModule, name );
  
        /* First handle names of the form '#xxxx' */
  
      if (name[0] == '#') return atoi( name + 1 );
  
        /* Now copy and uppercase the string */
  
      strcpy( buffer, name );
      for (p = buffer; *p; p++) *p = RtlUpperChar(*p);
      len = p - buffer;
  
        /* First search the resident names */
  
      cpnt = (BYTE *)pModule + pModule->ne_restab;
  
        /* Skip the first entry (module name) */
      cpnt += *cpnt + 1 + sizeof(WORD);
      while (*cpnt)
      {
          if ((*cpnt == len) && !memcmp( cpnt+1, buffer, len ))
          {
              WORD ordinal;
              memcpy( &ordinal, cpnt + *cpnt + 1, sizeof(ordinal) );
              TRACE("  Found: ordinal=%d\n", ordinal );
              return ordinal;
          }
          cpnt += *cpnt + 1 + sizeof(WORD);
      }
  
        /* Now search the non-resident names table */
  
      if (!pModule->nrname_handle) return 0;  /* No non-resident table */
      cpnt = GlobalLock16( pModule->nrname_handle );
  
        /* Skip the first entry (module description string) */
      cpnt += *cpnt + 1 + sizeof(WORD);
      while (*cpnt)
      {
          if ((*cpnt == len) && !memcmp( cpnt+1, buffer, len ))
          {
              WORD ordinal;
              memcpy( &ordinal, cpnt + *cpnt + 1, sizeof(ordinal) );
              TRACE("  Found: ordinal=%d\n", ordinal );
              return ordinal;
          }
          cpnt += *cpnt + 1 + sizeof(WORD);
      }
      return 0;
  }
  
  
  /***********************************************************************
   *		NE_GetEntryPoint
   */
  FARPROC16 WINAPI NE_GetEntryPoint( HMODULE16 hModule, WORD ordinal )
  {
      return NE_GetEntryPointEx( hModule, ordinal, TRUE );
  }
  
  /***********************************************************************
   *		NE_GetEntryPointEx
   */
  FARPROC16 NE_GetEntryPointEx( HMODULE16 hModule, WORD ordinal, BOOL16 snoop )
  {
      NE_MODULE *pModule;
      WORD sel, offset, i;
  
      ET_ENTRY *entry;
      ET_BUNDLE *bundle;
  
      if (!(pModule = NE_GetPtr( hModule ))) return 0;
      assert( !(pModule->ne_flags & NE_FFLAGS_WIN32) );
  
      bundle = (ET_BUNDLE *)((BYTE *)pModule + pModule->ne_enttab);
      while ((ordinal < bundle->first + 1) || (ordinal > bundle->last))
      {
          if (!(bundle->next))
              return 0;
          bundle = (ET_BUNDLE *)((BYTE *)pModule + bundle->next);
      }
  
      entry = (ET_ENTRY *)((BYTE *)bundle+6);
      for (i=0; i < (ordinal - bundle->first - 1); i++)
          entry++;
  
      sel = entry->segnum;
      memcpy( &offset, &entry->offs, sizeof(WORD) );
  
      if (sel == 0xfe) sel = 0xffff;  /* constant entry */
      else sel = GlobalHandleToSel16(NE_SEG_TABLE(pModule)[sel-1].hSeg);
      if (sel==0xffff)
          return (FARPROC16)MAKESEGPTR( sel, offset );
      if (!snoop)
          return (FARPROC16)MAKESEGPTR( sel, offset );
      else
          return SNOOP16_GetProcAddress16(hModule,ordinal,(FARPROC16)MAKESEGPTR( sel, offset ));
  }
  
  
  /***********************************************************************
   *		EntryAddrProc (KERNEL.667) Wine-specific export
   *
   * Return the entry point for a given ordinal.
   */
  FARPROC16 WINAPI EntryAddrProc16( HMODULE16 hModule, WORD ordinal )
  {
      FARPROC16 ret = NE_GetEntryPointEx( hModule, ordinal, TRUE );
      CURRENT_STACK16->ecx = hModule; /* FIXME: might be incorrect value */
      return ret;
  }
  
  /***********************************************************************
   *           NE_SetEntryPoint
   *
   * Change the value of an entry point. Use with caution!
   * It can only change the offset value, not the selector.
   */
  BOOL16 NE_SetEntryPoint( HMODULE16 hModule, WORD ordinal, WORD offset )
  {
      NE_MODULE *pModule;
      ET_ENTRY *entry;
      ET_BUNDLE *bundle;
      int i;
  
      if (!(pModule = NE_GetPtr( hModule ))) return FALSE;
      assert( !(pModule->ne_flags & NE_FFLAGS_WIN32) );
  
      bundle = (ET_BUNDLE *)((BYTE *)pModule + pModule->ne_enttab);
      while ((ordinal < bundle->first + 1) || (ordinal > bundle->last))
      {
          bundle = (ET_BUNDLE *)((BYTE *)pModule + bundle->next);
          if (!bundle->next) return FALSE;
      }
  
      entry = (ET_ENTRY *)((BYTE *)bundle+6);
      for (i=0; i < (ordinal - bundle->first - 1); i++)
          entry++;
  
      memcpy( &entry->offs, &offset, sizeof(WORD) );
      return TRUE;
  }
  
  
  /***********************************************************************
   *           build_bundle_data
   *
   * Build the entry table bundle data from the on-disk format. Helper for build_module.
   */
  static void *build_bundle_data( NE_MODULE *pModule, void *dest, const BYTE *table )
  {
      ET_BUNDLE *oldbundle, *bundle = dest;
      ET_ENTRY *entry;
      BYTE nr_entries, type;
  
      memset(bundle, 0, sizeof(ET_BUNDLE)); /* in case no entry table exists */
      entry = (ET_ENTRY *)((BYTE *)bundle+6);
  
      while ((nr_entries = *table++))
      {
          if ((type = *table++))
          {
              bundle->last += nr_entries;
              if (type == 0xff)
              {
                  while (nr_entries--)
                  {
                      entry->type   = type;
                      entry->flags  = *table++;
                      table += sizeof(WORD);
                      entry->segnum = *table++;
                      entry->offs   = *(const WORD *)table;
                      table += sizeof(WORD);
                      entry++;
                  }
              }
              else
              {
                  while (nr_entries--)
                  {
                      entry->type   = type;
                      entry->flags  = *table++;
                      entry->segnum = type;
                      entry->offs   = *(const WORD *)table;
                      table += sizeof(WORD);
                      entry++;
                  }
              }
          }
          else
          {
              if (bundle->first == bundle->last)
              {
                  bundle->first += nr_entries;
                  bundle->last += nr_entries;
              }
              else
              {
                  oldbundle = bundle;
                  oldbundle->next = (char *)entry - (char *)pModule;
                  bundle = (ET_BUNDLE *)entry;
                  bundle->first = bundle->last = oldbundle->last + nr_entries;
                  bundle->next = 0;
                  entry = (ET_ENTRY*)(((BYTE*)entry)+sizeof(ET_BUNDLE));
              }
          }
      }
      return entry;
  }
  
  
  /***********************************************************************
   *           build_module
   *
   * Build the in-memory module from the on-disk data.
   */
  static HMODULE16 build_module( const void *mapping, SIZE_T mapping_size, LPCSTR path )
  {
      const IMAGE_DOS_HEADER *mz_header = mapping;
      const IMAGE_OS2_HEADER *ne_header;
      const struct ne_segment_table_entry_s *pSeg;
      const void *ptr;
      int i;
      size_t size;
      HMODULE16 hModule;
      NE_MODULE *pModule;
      BYTE *buffer, *pData, *end;
      OFSTRUCT *ofs;
  
      if (mapping_size < sizeof(*mz_header)) return ERROR_BAD_FORMAT;
      if (mz_header->e_magic != IMAGE_DOS_SIGNATURE) return ERROR_BAD_FORMAT;
      ne_header = (const IMAGE_OS2_HEADER *)((const char *)mapping + mz_header->e_lfanew);
      if (mz_header->e_lfanew + sizeof(*ne_header) > mapping_size) return ERROR_BAD_FORMAT;
      if (ne_header->ne_magic == IMAGE_NT_SIGNATURE) return 21;  /* win32 exe */
      if (ne_header->ne_magic == IMAGE_OS2_SIGNATURE_LX)
      {
          MESSAGE("Sorry, %s is an OS/2 linear executable (LX) file!\n", path);
          return 12;
      }
      if (ne_header->ne_magic != IMAGE_OS2_SIGNATURE) return ERROR_BAD_FORMAT;
  
      /* We now have a valid NE header */
  
      /* check to be able to fall back to loading OS/2 programs as DOS
       * FIXME: should this check be reversed in order to be less strict?
       * (only fail for OS/2 ne_exetyp 0x01 here?) */
      if ((ne_header->ne_exetyp != 0x02 /* Windows */)
          && (ne_header->ne_exetyp != 0x04) /* Windows 386 */)
          return ERROR_BAD_FORMAT;
  
      size = sizeof(NE_MODULE) +
               /* segment table */
             ne_header->ne_cseg * sizeof(SEGTABLEENTRY) +
               /* resource table */
             ne_header->ne_restab - ne_header->ne_rsrctab +
               /* resident names table */
             ne_header->ne_modtab - ne_header->ne_restab +
               /* module ref table */
             ne_header->ne_cmod * sizeof(WORD) +
               /* imported names table */
             ne_header->ne_enttab - ne_header->ne_imptab +
               /* entry table length */
             ne_header->ne_cbenttab +
               /* entry table extra conversion space */
             sizeof(ET_BUNDLE) +
             2 * (ne_header->ne_cbenttab - ne_header->ne_cmovent*6) +
               /* loaded file info */
             sizeof(OFSTRUCT) - sizeof(ofs->szPathName) + strlen(path) + 1;
  
      hModule = GlobalAlloc16( GMEM_FIXED | GMEM_ZEROINIT, size );
      if (!hModule)
      {
          ERR_(winediag)( "Failed to create module for %s, 16-bit LDT support may be missing.\n",
                          debugstr_a(path) );
          return ERROR_BAD_FORMAT;
      }
  
      FarSetOwner16( hModule, hModule );
      pModule = GlobalLock16( hModule );
      memcpy( pModule, ne_header, sizeof(*ne_header) );
      pModule->count = 0;
      /* check programs for default minimal stack size */
      if (!(pModule->ne_flags & NE_FFLAGS_LIBMODULE) && (pModule->ne_stack < 0x1400))
          pModule->ne_stack = 0x1400;
  
      pModule->self         = hModule;
      pModule->mapping      = mapping;
      pModule->mapping_size = mapping_size;
  
      pData = (BYTE *)(pModule + 1);
  
      /* Clear internal Wine flags in case they are set in the EXE file */
  
      pModule->ne_flags &= ~(NE_FFLAGS_BUILTIN | NE_FFLAGS_WIN32);
  
      /* Get the segment table */
  
      pModule->ne_segtab = pData - (BYTE *)pModule;
      if (!(pSeg = NE_GET_DATA( pModule, mz_header->e_lfanew + ne_header->ne_segtab,
                                ne_header->ne_cseg * sizeof(struct ne_segment_table_entry_s) )))
          goto failed;
      for (i = ne_header->ne_cseg; i > 0; i--, pSeg++)
      {
          memcpy( pData, pSeg, sizeof(*pSeg) );
          pData += sizeof(SEGTABLEENTRY);
      }
  
      /* Get the resource table */
  
      if (ne_header->ne_rsrctab < ne_header->ne_restab)
      {
          pModule->ne_rsrctab = pData - (BYTE *)pModule;
          if (!NE_READ_DATA( pModule, pData, mz_header->e_lfanew + ne_header->ne_rsrctab,
                             ne_header->ne_restab - ne_header->ne_rsrctab )) goto failed;
          pData += ne_header->ne_restab - ne_header->ne_rsrctab;
      }
      else pModule->ne_rsrctab = 0;  /* No resource table */
  
      /* Get the resident names table */
  
      pModule->ne_restab = pData - (BYTE *)pModule;
      if (!NE_READ_DATA( pModule, pData, mz_header->e_lfanew + ne_header->ne_restab,
                         ne_header->ne_modtab - ne_header->ne_restab )) goto failed;
      pData += ne_header->ne_modtab - ne_header->ne_restab;
  
      /* Get the module references table */
  
      if (ne_header->ne_cmod > 0)
      {
          pModule->ne_modtab = pData - (BYTE *)pModule;
          if (!NE_READ_DATA( pModule, pData, mz_header->e_lfanew + ne_header->ne_modtab,
                             ne_header->ne_cmod * sizeof(WORD) )) goto failed;
          pData += ne_header->ne_cmod * sizeof(WORD);
      }
      else pModule->ne_modtab = 0;  /* No module references */
  
      /* Get the imported names table */
  
      pModule->ne_imptab = pData - (BYTE *)pModule;
      if (!NE_READ_DATA( pModule, pData, mz_header->e_lfanew + ne_header->ne_imptab,
                         ne_header->ne_enttab - ne_header->ne_imptab )) goto failed;
      pData += ne_header->ne_enttab - ne_header->ne_imptab;
  
      /* Load entry table, convert it to the optimized version used by Windows */
  
      pModule->ne_enttab = pData - (BYTE *)pModule;
      if (!(ptr = NE_GET_DATA( pModule, mz_header->e_lfanew + ne_header->ne_enttab,
                               ne_header->ne_cbenttab ))) goto failed;
      end = build_bundle_data( pModule, pData, ptr );
  
      pData += ne_header->ne_cbenttab + sizeof(ET_BUNDLE) +
          2 * (ne_header->ne_cbenttab - ne_header->ne_cmovent*6);
  
      if (end > pData)
      {
          FIXME( "not enough space for entry table for %s\n", debugstr_a(path) );
          goto failed;
      }
  
      /* Store the filename information */
  
      pModule->fileinfo = pData - (BYTE *)pModule;
      ofs = (OFSTRUCT *)pData;
      ofs->cBytes = sizeof(OFSTRUCT) - sizeof(ofs->szPathName) + strlen(path);
      ofs->fFixedDisk = 1;
      strcpy( ofs->szPathName, path );
      pData += ofs->cBytes + 1;
      assert( (BYTE *)pModule + size <= pData );
  
      /* Get the non-resident names table */
  
      if (ne_header->ne_cbnrestab)
      {
          pModule->nrname_handle = GlobalAlloc16( 0, ne_header->ne_cbnrestab );
          if (!pModule->nrname_handle) goto failed;
          FarSetOwner16( pModule->nrname_handle, hModule );
          buffer = GlobalLock16( pModule->nrname_handle );
          if (!NE_READ_DATA( pModule, buffer, ne_header->ne_nrestab, ne_header->ne_cbnrestab ))
          {
              GlobalFree16( pModule->nrname_handle );
              pModule->nrname_handle = 0;
          }
      }
      else pModule->nrname_handle = 0;
  
      /* Allocate a segment for the implicitly-loaded DLLs */
  
      if (pModule->ne_cmod)
      {
          pModule->dlls_to_init = GlobalAlloc16( GMEM_ZEROINIT,
                                                 (pModule->ne_cmod+1)*sizeof(HMODULE16) );
          if (!pModule->dlls_to_init)
          {
              if (pModule->nrname_handle) GlobalFree16( pModule->nrname_handle );
              goto failed;
          }
          FarSetOwner16( pModule->dlls_to_init, hModule );
      }
      else pModule->dlls_to_init = 0;
  
      NE_RegisterModule( pModule );
      return hModule;
  
  failed:
      GlobalFree16( hModule );
      return ERROR_BAD_FORMAT;
  }
  
  
  /***********************************************************************
   *           NE_LoadDLLs
   *
   * Load all DLLs implicitly linked to a module.
   */
  static BOOL NE_LoadDLLs( NE_MODULE *pModule )
  {
      int i;
      WORD *pModRef = (WORD *)((char *)pModule + pModule->ne_modtab);
      WORD *pDLLs = GlobalLock16( pModule->dlls_to_init );
  
      for (i = 0; i < pModule->ne_cmod; i++, pModRef++)
      {
          char buffer[260], *p;
          BYTE *pstr = (BYTE *)pModule + pModule->ne_imptab + *pModRef;
          memcpy( buffer, pstr + 1, *pstr );
          *(buffer + *pstr) = 0; /* terminate it */
  
          TRACE("Loading '%s'\n", buffer );
          if (!(*pModRef = GetModuleHandle16( buffer )))
          {
              /* If the DLL is not loaded yet, load it and store */
              /* its handle in the list of DLLs to initialize.   */
              HMODULE16 hDLL;
  
              /* Append .DLL (Windows >= 3.00) or .EXE (Windows < 3.00) to name if no extension present */
              if (!(p = strrchr( buffer, '.')) || strchr( p, '/' ) || strchr( p, '\\'))
                      strcat( buffer, (GetExeVersion16() >= 0x0300) ? ".DLL" : ".EXE" );
  
              if ((hDLL = MODULE_LoadModule16( buffer, TRUE, TRUE )) < 32)
              {
                  /* FIXME: cleanup what was done */
  
                  MESSAGE( "Could not load '%s' required by '%.*s', error=%d\n",
                       buffer, *((BYTE*)pModule + pModule->ne_restab),
                       (char *)pModule + pModule->ne_restab + 1, hDLL );
                  return FALSE;
              }
              *pModRef = GetExePtr( hDLL );
              *pDLLs++ = *pModRef;
          }
          else  /* Increment the reference count of the DLL */
          {
              NE_MODULE *pOldDLL = NE_GetPtr( *pModRef );
              if (pOldDLL) pOldDLL->count++;
          }
      }
      return TRUE;
  }
  
  
  /**********************************************************************
   *	    NE_DoLoadModule
   *
   * Load first instance of NE module from file.
   *
   * pModule must point to a module structure prepared by build_module.
   * This routine must never be called twice on a module.
   */
  static HINSTANCE16 NE_DoLoadModule( NE_MODULE *pModule )
  {
      /* Allocate the segments for this module */
  
      if (!NE_CreateAllSegments( pModule ))
          return ERROR_NOT_ENOUGH_MEMORY; /* 8 */
  
      /* Load the referenced DLLs */
  
      if (!NE_LoadDLLs( pModule ))
          return ERROR_FILE_NOT_FOUND; /* 2 */
  
      /* Load the segments */
  
      NE_LoadAllSegments( pModule );
  
      /* Make sure the usage count is 1 on the first loading of  */
      /* the module, even if it contains circular DLL references */
  
      pModule->count = 1;
  
      return NE_GetInstance( pModule );
  }
  
  /**********************************************************************
   *	    NE_LoadModule
   *
   * Load first instance of NE module. (Note: caller is responsible for
   * ensuring the module isn't already loaded!)
   *
   * If the module turns out to be an executable module, only a
   * handle to a module stub is returned; this needs to be initialized
   * by calling NE_DoLoadModule later, in the context of the newly
   * created process.
   *
   * If lib_only is TRUE, however, the module is perforce treated
   * like a DLL module, even if it is an executable module.
   *
   */
  static HINSTANCE16 NE_LoadModule( LPCSTR name, BOOL lib_only )
  {
      NE_MODULE *pModule;
      HMODULE16 hModule;
      HINSTANCE16 hInstance;
      HFILE16 hFile;
      OFSTRUCT ofs;
      HANDLE mapping;
      void *ptr;
      MEMORY_BASIC_INFORMATION info;
  
      /* Open file */
      if ((hFile = OpenFile16( name, &ofs, OF_READ|OF_SHARE_DENY_WRITE )) == HFILE_ERROR16)
          return ERROR_FILE_NOT_FOUND;
  
      mapping = CreateFileMappingW( DosFileHandleToWin32Handle(hFile), NULL, PAGE_WRITECOPY, 0, 0, NULL );
      _lclose16( hFile );
      if (!mapping) return ERROR_BAD_FORMAT;
  
      ptr = MapViewOfFile( mapping, FILE_MAP_COPY, 0, 0, 0 );
      CloseHandle( mapping );
      if (!ptr) return ERROR_BAD_FORMAT;
  
      VirtualQuery( ptr, &info, sizeof(info) );
      hModule = build_module( ptr, info.RegionSize, ofs.szPathName );
  
      if (hModule < 32)
      {
          UnmapViewOfFile( ptr );
          return hModule;
      }
  
      SNOOP16_RegisterDLL( hModule, ofs.szPathName );
      NE_InitResourceHandler( hModule );
  
      pModule = NE_GetPtr( hModule );
  
      if ( !lib_only && !( pModule->ne_flags & NE_FFLAGS_LIBMODULE ) )
          return hModule;
  
      hInstance = NE_DoLoadModule( pModule );
      if ( hInstance < 32 )
      {
          /* cleanup ... */
          NE_FreeModule( hModule, 0 );
      }
  
      return hInstance;
  }
  
  
  /***********************************************************************
   *           NE_DoLoadBuiltinModule
   *
   * Load a built-in Win16 module. Helper function for NE_LoadBuiltinModule.
   */
  static HMODULE16 NE_DoLoadBuiltinModule( const IMAGE_DOS_HEADER *mz_header, const char *file_name,
                                           HMODULE owner32 )
  {
      NE_MODULE *pModule;
      HMODULE16 hModule;
      HINSTANCE16 hInstance;
      SIZE_T mapping_size = ~0UL;  /* assume builtins don't contain invalid offsets... */
  
      hModule = build_module( mz_header, mapping_size, file_name );
      if (hModule < 32) return hModule;
      pModule = GlobalLock16( hModule );
      pModule->ne_flags |= NE_FFLAGS_BUILTIN;
      pModule->owner32 = owner32;
  
      /* fake the expected version the module should have according to the current Windows version */
      pModule->ne_expver = MAKEWORD( NtCurrentTeb()->Peb->OSMajorVersion,
                                     NtCurrentTeb()->Peb->OSMinorVersion );
  
      hInstance = NE_DoLoadModule( pModule );
      if (hInstance < 32) NE_FreeModule( hModule, 0 );
  
      NE_InitResourceHandler( hModule );
  
      if (pModule->ne_heap)
      {
          SEGTABLEENTRY *pSeg = NE_SEG_TABLE( pModule ) + pModule->ne_autodata - 1;
          unsigned int size = pSeg->minsize + pModule->ne_heap;
          if (size > 0xfffe) size = 0xfffe;
          LocalInit16( GlobalHandleToSel16(pSeg->hSeg), pSeg->minsize, size );
      }
  
      patch_code_segment( pModule );
      *(void **)mz_header->e_res2 = &wine_ldt_copy;
  
      return hInstance;
  }
  
  
  /**********************************************************************
   *	    MODULE_LoadModule16
   *
   * Load a NE module in the order of the loadorder specification.
   * The caller is responsible that the module is not loaded already.
   *
   */
  static HINSTANCE16 MODULE_LoadModule16( LPCSTR libname, BOOL implicit, BOOL lib_only )
  {
      HINSTANCE16 hinst = 2;
      HMODULE16 hModule;
      HMODULE mod32 = 0;
      NE_MODULE *pModule;
      const IMAGE_DOS_HEADER *descr = NULL;
      const char *file_name = NULL;
      char dllname[32];
      const char *basename, *main_module, *p;
  
      /* strip path information */
  
      basename = libname;
      if (basename[0] && basename[1] == ':') basename += 2;  /* strip drive specification */
      if ((p = strrchr( basename, '\\' ))) basename = p + 1;
      if ((p = strrchr( basename, '/' ))) basename = p + 1;
  
      if (strlen(basename) < sizeof(dllname)-6)
      {
          DWORD count;
          char *q;
  
          ReleaseThunkLock( &count );
  
          strcpy( dllname, basename );
          q = strrchr( dllname, '.' );
          if (!q) strcat( dllname, (GetExeVersion16() >= 0x0300) ? ".dll" : ".exe" );
          for (q = dllname; *q; q++) if (*q >= 'A' && *q <= 'Z') *q += 32;
  
          strcpy( q, "16" );
          if ((mod32 = LoadLibraryA( dllname )))
          {
              if (!(descr = (void *)GetProcAddress( mod32, "__wine_spec_dos_header" )))
              {
                  WARN( "loaded %s but does not contain a 16-bit module\n", debugstr_a(dllname) );
                  FreeLibrary( mod32 );
              }
              else
              {
                  TRACE( "found %s with embedded 16-bit module\n", debugstr_a(dllname) );
                  file_name = basename;
  
                  /* if module has a 32-bit owner, match the load order of the owner */
                  if ((main_module = (void *)GetProcAddress( mod32, "__wine_spec_main_module" )))
                  {
                      LDR_MODULE *ldr;
                      HMODULE main_owner = LoadLibraryA( main_module );
  
                      if (!main_owner)
                      {
                          WARN( "couldn't load owner %s for 16-bit dll %s\n", main_module, dllname );
                          FreeLibrary( mod32 );
                          RestoreThunkLock( count );
                          return ERROR_FILE_NOT_FOUND;
                      }
                      /* check if module was loaded native */
                      if (LdrFindEntryForAddress( main_owner, &ldr ) || !(ldr->Flags & LDR_WINE_INTERNAL))
                      {
                          FreeLibrary( mod32 );
                          descr = NULL;
                      }
                      FreeLibrary( main_owner );
                  }
              }
          }
          RestoreThunkLock( count );
  
          /* loading the 32-bit library can have the side effect of loading the module */
          /* if so, simply incr the ref count and return the module */
          if (descr && (hModule = GetModuleHandle16( libname )))
          {
              TRACE( "module %s already loaded by owner\n", libname );
              pModule = NE_GetPtr( hModule );
              if (pModule) pModule->count++;
              FreeLibrary( mod32 );
              return hModule;
          }
      }
  
      if (descr)
      {
          TRACE("Trying built-in '%s'\n", libname);
          hinst = NE_DoLoadBuiltinModule( descr, file_name, mod32 );
          if (hinst > 32) TRACE_(loaddll)("Loaded module %s : builtin\n", debugstr_a(file_name));
          else FreeLibrary( mod32 );
      }
      else
      {
          TRACE("Trying native dll '%s'\n", libname);
          hinst = NE_LoadModule(libname, lib_only);
          if (hinst > 32) TRACE_(loaddll)("Loaded module %s : native\n", debugstr_a(libname));
      }
  
      if (hinst > 32 && !implicit)
      {
          hModule = GetModuleHandle16(libname);
          if(!hModule)
          {
              ERR("Serious trouble. Just loaded module '%s' (hinst=0x%04x), but can't get module handle. Filename too long ?\n",
                  libname, hinst);
              return ERROR_INVALID_HANDLE;
          }
  
          pModule = NE_GetPtr(hModule);
          if(!pModule)
          {
              ERR("Serious trouble. Just loaded module '%s' (hinst=0x%04x), but can't get NE_MODULE pointer\n",
                  libname, hinst);
              return ERROR_INVALID_HANDLE;
          }
  
          TRACE("Loaded module '%s' at 0x%04x.\n", libname, hinst);
  
          /*
           * Call initialization routines for all loaded DLLs. Note that
           * when we load implicitly linked DLLs this will be done by InitTask().
           */
          if(pModule->ne_flags & NE_FFLAGS_LIBMODULE)
          {
              NE_InitializeDLLs(hModule);
              NE_DllProcessAttach(hModule);
          }
          else DOSMEM_InitDosMemory();  /* we will be running a 16-bit task, setup DOS memory */
      }
      return hinst;       /* The last error that occurred */
  }
  
  
  /**********************************************************************
   *          NE_CreateThread
   *
   * Create the thread for a 16-bit module.
   */
  static HINSTANCE16 NE_CreateThread( NE_MODULE *pModule, WORD cmdShow, LPCSTR cmdline )
  {
      HANDLE hThread;
      TDB *pTask;
      HTASK16 hTask;
      HINSTANCE16 instance = 0;
  
      if (!(hTask = TASK_SpawnTask( pModule, cmdShow, cmdline + 1, *cmdline, &hThread )))
          return 0;
  
      /* Post event to start the task */
      PostEvent16( hTask );
  
      /* Wait until we get the instance handle */
      do
      {
          DirectedYield16( hTask );
          if (!IsTask16( hTask ))  /* thread has died */
          {
              DWORD exit_code;
              WaitForSingleObject( hThread, INFINITE );
              GetExitCodeThread( hThread, &exit_code );
              CloseHandle( hThread );
              return exit_code;
          }
          if (!(pTask = GlobalLock16( hTask ))) break;
          instance = pTask->hInstance;
          GlobalUnlock16( hTask );
      } while (!instance);
  
      CloseHandle( hThread );
      return instance;
  }
  
  
  /**********************************************************************
   *          LoadModule      (KERNEL.45)
   */
  HINSTANCE16 WINAPI LoadModule16( LPCSTR name, LPVOID paramBlock )
  {
      BOOL lib_only = !paramBlock || (paramBlock == (LPVOID)-1);
      LOADPARAMS16 *params;
      HMODULE16 hModule;
      NE_MODULE *pModule;
      LPSTR cmdline;
      WORD cmdShow = 1; /* SW_SHOWNORMAL but we don't want to include winuser.h here */
  
      if (name == NULL) return 0;
  
      TRACE("name %s, paramBlock %p\n", name, paramBlock);
  
      /* Load module */
  
      if ( (hModule = NE_GetModuleByFilename(name) ) != 0 )
      {
          /* Special case: second instance of an already loaded NE module */
  
          if ( !( pModule = NE_GetPtr( hModule ) ) ) return ERROR_BAD_FORMAT;
          if ( pModule->module32 ) return (HINSTANCE16)21;
  
          /* Increment refcount */
  
          pModule->count++;
      }
      else
      {
          /* Main case: load first instance of NE module */
  
          if ( (hModule = MODULE_LoadModule16( name, FALSE, lib_only )) < 32 )
              return hModule;
  
          if ( !(pModule = NE_GetPtr( hModule )) )
              return ERROR_BAD_FORMAT;
      }
  
      /* If library module, we just retrieve the instance handle */
  
      if ( ( pModule->ne_flags & NE_FFLAGS_LIBMODULE ) || lib_only )
          return NE_GetInstance( pModule );
  
      /*
       *  At this point, we need to create a new process.
       *
       *  pModule points either to an already loaded module, whose refcount
       *  has already been incremented (to avoid having the module vanish
       *  in the meantime), or else to a stub module which contains only header
       *  information.
       */
      params = paramBlock;
      if (params->showCmd)
          cmdShow = ((WORD *)MapSL( params->showCmd ))[1];
      cmdline = MapSL( params->cmdLine );
      return NE_CreateThread( pModule, cmdShow, cmdline );
  }
  
  
  /**********************************************************************
   *          NE_StartTask
   *
   * Startup code for a new 16-bit task.
   */
  DWORD NE_StartTask(void)
  {
      TDB *pTask = TASK_GetCurrent();
      NE_MODULE *pModule = NE_GetPtr( pTask->hModule );
      HINSTANCE16 hInstance, hPrevInstance;
      SEGTABLEENTRY *pSegTable = NE_SEG_TABLE( pModule );
      WORD sp;
  
      if ( pModule->count > 0 )
      {
          /* Second instance of an already loaded NE module */
          /* Note that the refcount was already incremented by the parent */
  
          hPrevInstance = NE_GetInstance( pModule );
  
          if ( pModule->ne_autodata )
              if ( NE_CreateSegment( pModule, pModule->ne_autodata ) )
                  NE_LoadSegment( pModule, pModule->ne_autodata );
  
          hInstance = NE_GetInstance( pModule );
          TRACE("created second instance %04x[%d] of instance %04x.\n", hInstance, pModule->ne_autodata, hPrevInstance);
  
      }
      else
      {
          /* Load first instance of NE module */
  
          pModule->ne_flags |= NE_FFLAGS_GUI;  /* FIXME: is this necessary? */
  
          hInstance = NE_DoLoadModule( pModule );
          hPrevInstance = 0;
      }
  
      if ( hInstance >= 32 )
      {
          CONTEXT context;
  
          /* Enter instance handles into task struct */
  
          pTask->hInstance = hInstance;
          pTask->hPrevInstance = hPrevInstance;
  
          /* Use DGROUP for 16-bit stack */
  
          if (!(sp = OFFSETOF(pModule->ne_sssp)))
              sp = pSegTable[SELECTOROF(pModule->ne_sssp)-1].minsize + pModule->ne_stack;
          sp &= ~1;
          sp -= sizeof(STACK16FRAME);
          NtCurrentTeb()->WOW32Reserved = (void *)MAKESEGPTR( GlobalHandleToSel16(hInstance), sp );
  
          /* Registers at initialization must be:
           * ax   zero
           * bx   stack size in bytes
           * cx   heap size in bytes
           * si   previous app instance
           * di   current app instance
           * bp   zero
           * es   selector to the PSP
           * ds   dgroup of the application
           * ss   stack selector
           * sp   top of the stack
           */
          memset( &context, 0, sizeof(context) );
          context.SegCs  = GlobalHandleToSel16(pSegTable[SELECTOROF(pModule->ne_csip) - 1].hSeg);
          context.SegDs  = GlobalHandleToSel16(pTask->hInstance);
          context.SegEs  = pTask->hPDB;
          context.Eip    = OFFSETOF(pModule->ne_csip);
          context.Ebx    = pModule->ne_stack;
          context.Ecx    = pModule->ne_heap;
          context.Edi    = pTask->hInstance;
          context.Esi    = pTask->hPrevInstance;
  
          /* Now call 16-bit entry point */
  
          TRACE("Starting main program: cs:ip=%04x:%04x ds=%04x ss:sp=%04x:%04x\n",
                context.SegCs, context.Eip, context.SegDs,
                SELECTOROF(NtCurrentTeb()->WOW32Reserved),
                OFFSETOF(NtCurrentTeb()->WOW32Reserved) );
  
          WOWCallback16Ex( 0, WCB16_REGS, 0, NULL, (DWORD *)&context );
          ExitThread( LOWORD(context.Eax) );
      }
      return hInstance;  /* error code */
  }
  
  /***********************************************************************
   *           LoadLibrary     (KERNEL.95)
   *           LoadLibrary16   (KERNEL32.35)
   */
  HINSTANCE16 WINAPI LoadLibrary16( LPCSTR libname )
  {
      return LoadModule16(libname, (LPVOID)-1 );
  }
  
  
  /**********************************************************************
   *	    MODULE_CallWEP
   *
   * Call a DLL's WEP, allowing it to shut down.
   * FIXME: we always pass the WEP WEP_FREE_DLL, never WEP_SYSTEM_EXIT
   */
  static BOOL16 MODULE_CallWEP( HMODULE16 hModule )
  {
      BOOL16 ret;
      FARPROC16 WEP = GetProcAddress16( hModule, "WEP" );
      if (!WEP) return FALSE;
  
      __TRY
      {
          WORD args[1];
          DWORD dwRet;
  
          args[0] = WEP_FREE_DLL;
          WOWCallback16Ex( (DWORD)WEP, WCB16_PASCAL, sizeof(args), args, &dwRet );
          ret = LOWORD(dwRet);
      }
      __EXCEPT_PAGE_FAULT
      {
          WARN("Page fault\n");
          ret = 0;
      }
      __ENDTRY
  
      return ret;
  }
  
  
  /**********************************************************************
   *	    NE_FreeModule
   *
   * Implementation of FreeModule16().
   */
  static BOOL16 NE_FreeModule( HMODULE16 hModule, BOOL call_wep )
  {
      HMODULE16 *hPrevModule;
      NE_MODULE *pModule;
      HMODULE16 *pModRef;
      int i;
  
      if (!(pModule = NE_GetPtr( hModule ))) return FALSE;
      hModule = pModule->self;
  
      TRACE("%04x count %d\n", hModule, pModule->count );
  
      if (((INT16)(--pModule->count)) > 0 ) return TRUE;
      else pModule->count = 0;
  
      if (call_wep && !(pModule->ne_flags & NE_FFLAGS_WIN32))
      {
          /* Free the objects owned by the DLL module */
          NE_CallUserSignalProc( hModule, USIG16_DLL_UNLOAD );
  
          if (pModule->ne_flags & NE_FFLAGS_LIBMODULE)
              MODULE_CallWEP( hModule );
          else
              call_wep = FALSE;  /* We are freeing a task -> no more WEPs */
      }
  
      TRACE_(loaddll)("Unloaded module %s : %s\n", debugstr_a(NE_MODULE_NAME(pModule)),
                      (pModule->ne_flags & NE_FFLAGS_BUILTIN) ? "builtin" : "native");
  
      /* Clear magic number just in case */
  
      pModule->ne_magic = pModule->self = 0;
      if (pModule->owner32) FreeLibrary( pModule->owner32 );
      else if (pModule->mapping) UnmapViewOfFile( pModule->mapping );
  
        /* Remove it from the linked list */
  
      hPrevModule = &hFirstModule;
      while (*hPrevModule && (*hPrevModule != hModule))
      {
          hPrevModule = &(NE_GetPtr( *hPrevModule ))->next;
      }
      if (*hPrevModule) *hPrevModule = pModule->next;
  
      /* Free the referenced modules */
  
      pModRef = (HMODULE16*)((char *)pModule + pModule->ne_modtab);
      for (i = 0; i < pModule->ne_cmod; i++, pModRef++)
      {
          NE_FreeModule( *pModRef, call_wep );
      }
  
      /* Free the module storage */
  
      GlobalFreeAll16( hModule );
      return TRUE;
  }
  
  
  /**********************************************************************
   *	    FreeModule    (KERNEL.46)
   */
  BOOL16 WINAPI FreeModule16( HMODULE16 hModule )
  {
      return NE_FreeModule( hModule, TRUE );
  }
  
  
  /***********************************************************************
   *           FreeLibrary     (KERNEL.96)
   *           FreeLibrary16   (KERNEL32.36)
   */
  void WINAPI FreeLibrary16( HINSTANCE16 handle )
  {
      TRACE("%04x\n", handle );
      FreeModule16( handle );
  }
  
  
  /***********************************************************************
   *          GetModuleHandle16 (KERNEL32.@)
   */
  HMODULE16 WINAPI GetModuleHandle16( LPCSTR name )
  {
      HMODULE16	hModule;
      LPSTR	s;
      BYTE	len, *name_table;
      char	tmpstr[MAX_PATH];
      NE_MODULE *pModule;
  
      TRACE("(%s)\n", name);
  
      if (!HIWORD(name)) return GetExePtr(LOWORD(name));
  
      len = strlen(name);
      if (!len) return 0;
  
      lstrcpynA(tmpstr, name, sizeof(tmpstr));
  
      /* If 'name' matches exactly the module name of a module:
       * Return its handle.
       */
      for (hModule = hFirstModule; hModule ; hModule = pModule->next)
      {
  	pModule = NE_GetPtr( hModule );
          if (!pModule) break;
          if (pModule->ne_flags & NE_FFLAGS_WIN32) continue;
  
          name_table = (BYTE *)pModule + pModule->ne_restab;
          if ((*name_table == len) && !strncmp(name, (char*) name_table+1, len))
              return hModule;
      }
  
      /* If uppercased 'name' matches exactly the module name of a module:
       * Return its handle
       */
      for (s = tmpstr; *s; s++) *s = RtlUpperChar(*s);
  
      for (hModule = hFirstModule; hModule ; hModule = pModule->next)
      {
  	pModule = NE_GetPtr( hModule );
          if (!pModule) break;
          if (pModule->ne_flags & NE_FFLAGS_WIN32) continue;
  
          name_table = (BYTE *)pModule + pModule->ne_restab;
  	/* FIXME: the _strnicmp is WRONG. It should not be case insensitive,
  	 * but case sensitive! (Unfortunately Winword 6 and subdlls have
  	 * lowercased module names, but try to load uppercase DLLs, so this
  	 * 'i' compare is just a quickfix until the loader handles that
  	 * correctly. -MM 990705
  	 */
          if ((*name_table == len) && !_strnicmp(tmpstr, (const char*)name_table+1, len))
              return hModule;
      }
  
      /* If the base filename of 'name' matches the base filename of the module
       * filename of some module (case-insensitive compare):
       * Return its handle.
       */
  
      /* basename: search backwards in passed name to \ / or : */
      s = tmpstr + strlen(tmpstr);
      while (s > tmpstr)
      {
          if (s[-1]=='/' || s[-1]=='\\' || s[-1]==':')
  		break;
  	s--;
      }
  
      /* search this in loaded filename list */
      for (hModule = hFirstModule; hModule ; hModule = pModule->next)
      {
          char		*loadedfn;
  	OFSTRUCT	*ofs;
  
  	pModule = NE_GetPtr( hModule );
          if (!pModule) break;
  	if (!pModule->fileinfo) continue;
          if (pModule->ne_flags & NE_FFLAGS_WIN32) continue;
  
          ofs = (OFSTRUCT*)((BYTE *)pModule + pModule->fileinfo);
  	loadedfn = ((char*)ofs->szPathName) + strlen(ofs->szPathName);
  	/* basename: search backwards in pathname to \ / or : */
  	while (loadedfn > (char*)ofs->szPathName)
  	{
  	    if (loadedfn[-1]=='/' || loadedfn[-1]=='\\' || loadedfn[-1]==':')
  		    break;
  	    loadedfn--;
  	}
  	/* case insensitive compare ... */
  	if (!_strnicmp(loadedfn, s, -1))
  	    return hModule;
      }
      return 0;
  }
  
  
  /**********************************************************************
   *	    GetModuleName    (KERNEL.27)
   */
  BOOL16 WINAPI GetModuleName16( HINSTANCE16 hinst, LPSTR buf, INT16 count )
  {
      NE_MODULE *pModule;
      BYTE *p;
  
      if (!(pModule = NE_GetPtr( hinst ))) return FALSE;
      p = (BYTE *)pModule + pModule->ne_restab;
      if (count > *p) count = *p + 1;
      if (count > 0)
      {
          memcpy( buf, p + 1, count - 1 );
          buf[count-1] = '\0';
      }
      return TRUE;
  }
  
  
  /**********************************************************************
   *	    GetModuleFileName      (KERNEL.49)
   *
   * See also: GetModuleFileNameA
   *
   * This function returns short paths when the modules version field is < 4.0).
   *
   * Even if invoked by second instance of a program,
   * it still returns path of first one.
   */
  INT16 WINAPI GetModuleFileName16( HINSTANCE16 hModule, LPSTR lpFileName,
                                    INT16 nSize )
  {
      NE_MODULE *pModule;
  
      /* Win95 does not query hModule if set to 0 !
       * Is this wrong or maybe Win3.1 only ? */
      if (!hModule) hModule = GetCurrentTask();
  
      if (!(pModule = NE_GetPtr( hModule ))) return 0;
      lstrcpynA( lpFileName, NE_MODULE_NAME(pModule), nSize );
      if (pModule->ne_expver < 0x400)
          GetShortPathNameA(NE_MODULE_NAME(pModule), lpFileName, nSize);
      TRACE("%04x -> '%s'\n", hModule, lpFileName );
      return strlen(lpFileName);
  }
  
  
  /**********************************************************************
   *	    GetModuleUsage    (KERNEL.48)
   */
  INT16 WINAPI GetModuleUsage16( HINSTANCE16 hModule )
  {
      NE_MODULE *pModule = NE_GetPtr( hModule );
      return pModule ? pModule->count : 0;
  }
  
  
  /**********************************************************************
   *	    GetExpWinVer    (KERNEL.167)
   */
  WORD WINAPI GetExpWinVer16( HMODULE16 hModule )
  {
      NE_MODULE *pModule = NE_GetPtr( hModule );
      if ( !pModule ) return 0;
      return pModule->ne_expver;
  }
  
  
  /***********************************************************************
   *           WinExec     (KERNEL.166)
   */
  HINSTANCE16 WINAPI WinExec16( LPCSTR lpCmdLine, UINT16 nCmdShow )
  {
      LPCSTR p, args = NULL;
      LPCSTR name_beg, name_end;
      LPSTR name, cmdline;
      int arglen;
      HINSTANCE16 ret;
      char buffer[MAX_PATH];
      LOADPARAMS16 params;
      WORD showCmd[2];
  
      if (*lpCmdLine == '"') /* has to be only one and only at beginning ! */
      {
          name_beg = lpCmdLine+1;
          p = strchr ( lpCmdLine+1, '"' );
          if (p)
          {
              name_end = p;
              args = strchr ( p, ' ' );
          }
          else /* yes, even valid with trailing '"' missing */
              name_end = lpCmdLine+strlen(lpCmdLine);
      }
      else
      {
          name_beg = lpCmdLine;
          args = strchr( lpCmdLine, ' ' );
          name_end = args ? args : lpCmdLine+strlen(lpCmdLine);
      }
  
      if ((name_beg == lpCmdLine) && (!args))
      { /* just use the original cmdline string as file name */
          name = (LPSTR)lpCmdLine;
      }
      else
      {
          if (!(name = HeapAlloc( GetProcessHeap(), 0, name_end - name_beg + 1 )))
              return ERROR_NOT_ENOUGH_MEMORY;
          memcpy( name, name_beg, name_end - name_beg );
          name[name_end - name_beg] = '\0';
      }
  
      if (args)
      {
          args++;
          arglen = strlen(args);
          cmdline = HeapAlloc( GetProcessHeap(), 0, 2 + arglen );
          cmdline[0] = (BYTE)arglen;
          strcpy( cmdline + 1, args );
      }
      else
      {
          cmdline = HeapAlloc( GetProcessHeap(), 0, 2 );
          cmdline[0] = cmdline[1] = 0;
      }
  
      TRACE("name: '%s', cmdline: '%.*s'\n", name, cmdline[0], &cmdline[1]);
  
      showCmd[0] = 2;
      showCmd[1] = nCmdShow;
  
      params.hEnvironment = 0;
      params.cmdLine = MapLS( cmdline );
      params.showCmd = MapLS( showCmd );
      params.reserved = 0;
  
      if (SearchPathA( NULL, name, ".exe", sizeof(buffer), buffer, NULL ))
      {
          ret = LoadModule16( buffer, &params );
      }
      else if (!contains_path( name ))  /* try 16-bit builtin */
      {
          lstrcpynA( buffer, name, sizeof(buffer) );
          if (strlen( buffer ) < sizeof(buffer) - 4 && !strchr( buffer, '.' )) strcat( buffer, ".exe" );
          ret = LoadModule16( buffer, &params );
          if (ret == ERROR_FILE_NOT_FOUND) ret = 21;  /* it might be a 32-bit builtin too */
      }
      else ret = ERROR_FILE_NOT_FOUND;
  
      UnMapLS( params.cmdLine );
      UnMapLS( params.showCmd );
  
      HeapFree( GetProcessHeap(), 0, cmdline );
      if (name != lpCmdLine) HeapFree( GetProcessHeap(), 0, name );
  
      if (ret == 21 || ret == ERROR_BAD_FORMAT)  /* 32-bit module or unknown executable*/
      {
          LOADPARAMS16 params;
          WORD showCmd[2];
          showCmd[0] = 2;
          showCmd[1] = nCmdShow;
  
          arglen = strlen( lpCmdLine );
          cmdline = HeapAlloc( GetProcessHeap(), 0, arglen + 1 );
          cmdline[0] = (BYTE)arglen;
          memcpy( cmdline + 1, lpCmdLine, arglen );
  
          params.hEnvironment = 0;
          params.cmdLine = MapLS( cmdline );
          params.showCmd = MapLS( showCmd );
          params.reserved = 0;
  
          ret = LoadModule16( "winoldap.mod", &params );
          UnMapLS( params.cmdLine );
          UnMapLS( params.showCmd );
      }
      return ret;
  }
  
  /***********************************************************************
   *           GetProcAddress   (KERNEL.50)
   */
  FARPROC16 WINAPI GetProcAddress16( HMODULE16 hModule, LPCSTR name )
  {
      WORD ordinal;
      FARPROC16 ret;
  
      if (!hModule) hModule = GetCurrentTask();
      hModule = GetExePtr( hModule );
  
      if (HIWORD(name) != 0)
      {
          ordinal = NE_GetOrdinal( hModule, name );
          TRACE("%04x '%s'\n", hModule, name );
      }
      else
      {
          ordinal = LOWORD(name);
          TRACE("%04x %04x\n", hModule, ordinal );
      }
      if (!ordinal) return NULL;
  
      ret = NE_GetEntryPoint( hModule, ordinal );
  
      TRACE("returning %p\n", ret );
      return ret;
  }
  
  
  /***************************************************************************
   *              HasGPHandler                    (KERNEL.338)
   */
  SEGPTR WINAPI HasGPHandler16( SEGPTR address )
  {
      HMODULE16 hModule;
      int gpOrdinal;
      SEGPTR gpPtr;
      GPHANDLERDEF *gpHandler;
  
      if (    (hModule = FarGetOwner16( SELECTOROF(address) )) != 0
           && (gpOrdinal = NE_GetOrdinal( hModule, "__GP" )) != 0
           && (gpPtr = (SEGPTR)NE_GetEntryPointEx( hModule, gpOrdinal, FALSE )) != 0
           && !IsBadReadPtr16( gpPtr, sizeof(GPHANDLERDEF) )
           && (gpHandler = MapSL( gpPtr )) != NULL )
      {
          while (gpHandler->selector)
          {
              if (    SELECTOROF(address) == gpHandler->selector
                   && OFFSETOF(address)   >= gpHandler->rangeStart
                   && OFFSETOF(address)   <  gpHandler->rangeEnd  )
                  return MAKESEGPTR( gpHandler->selector, gpHandler->handler );
              gpHandler++;
          }
      }
  
      return 0;
  }
  
  
  /**********************************************************************
   *	    GetModuleHandle    (KERNEL.47)
   *
   * Find a module from a module name.
   *
   * NOTE: The current implementation works the same way the Windows 95 one
   *	 does. Do not try to 'fix' it, fix the callers.
   *	 + It does not do ANY extension handling (except that strange .EXE bit)!
   *	 + It does not care about paths, just about basenames. (same as Windows)
   *
   * RETURNS
   *   LOWORD:
   *	the win16 module handle if found
   * 	0 if not
   *   HIWORD (undocumented, see "Undocumented Windows", chapter 5):
   *	Always hFirstModule
   */
  DWORD WINAPI WIN16_GetModuleHandle( SEGPTR name )
  {
      if (HIWORD(name) == 0)
          return MAKELONG(GetExePtr( (HINSTANCE16)name), hFirstModule );
      return MAKELONG(GetModuleHandle16( MapSL(name)), hFirstModule );
  }
  
  /**********************************************************************
   *	    NE_GetModuleByFilename
   */
  static HMODULE16 NE_GetModuleByFilename( LPCSTR name )
  {
      HMODULE16   hModule;
      LPSTR       s, p;
      BYTE        len, *name_table;
      char        tmpstr[MAX_PATH];
      NE_MODULE *pModule;
  
      lstrcpynA(tmpstr, name, sizeof(tmpstr));
  
      /* If the base filename of 'name' matches the base filename of the module
       * filename of some module (case-insensitive compare):
       * Return its handle.
       */
  
      /* basename: search backwards in passed name to \ / or : */
      s = tmpstr + strlen(tmpstr);
      while (s > tmpstr)
      {
          if (s[-1]=='/' || s[-1]=='\\' || s[-1]==':')
                  break;
          s--;
      }
  
      /* search this in loaded filename list */
      for (hModule = hFirstModule; hModule ; hModule = pModule->next)
      {
          char            *loadedfn;
          OFSTRUCT        *ofs;
  
          pModule = NE_GetPtr( hModule );
          if (!pModule) break;
          if (!pModule->fileinfo) continue;
          if (pModule->ne_flags & NE_FFLAGS_WIN32) continue;
  
          ofs = (OFSTRUCT*)((BYTE *)pModule + pModule->fileinfo);
          loadedfn = ((char*)ofs->szPathName) + strlen(ofs->szPathName);
          /* basename: search backwards in pathname to \ / or : */
          while (loadedfn > (char*)ofs->szPathName)
          {
              if (loadedfn[-1]=='/' || loadedfn[-1]=='\\' || loadedfn[-1]==':')
                      break;
              loadedfn--;
          }
          /* case insensitive compare ... */
          if (!_strnicmp(loadedfn, s, -1))
              return hModule;
      }
      /* If basename (without ext) matches the module name of a module:
       * Return its handle.
       */
  
      if ( (p = strrchr( s, '.' )) != NULL ) *p = '\0';
      len = strlen(s);
  
      for (hModule = hFirstModule; hModule ; hModule = pModule->next)
      {
          pModule = NE_GetPtr( hModule );
          if (!pModule) break;
          if (pModule->ne_flags & NE_FFLAGS_WIN32) continue;
  
          name_table = (BYTE *)pModule + pModule->ne_restab;
          if ((*name_table == len) && !_strnicmp(s, (const char*)name_table+1, len))
              return hModule;
      }
  
      return 0;
  }
  
  /***********************************************************************
   *           GetProcAddress16   (KERNEL32.37)
   * Get procaddress in 16bit module from win32... (kernel32 undoc. ordinal func)
   */
  FARPROC16 WINAPI WIN32_GetProcAddress16( HMODULE hModule, LPCSTR name )
  {
      if (!hModule) return 0;
      if (HIWORD(hModule))
      {
          WARN("hModule is Win32 handle (%p)\n", hModule );
          return 0;
      }
      return GetProcAddress16( LOWORD(hModule), name );
  }
  
  /***************************************************************************
   *          IsRomModule    (KERNEL.323)
   */
  BOOL16 WINAPI IsRomModule16( HMODULE16 unused )
  {
      return FALSE;
  }
  
  /***************************************************************************
   *          IsRomFile    (KERNEL.326)
   */
  BOOL16 WINAPI IsRomFile16( HFILE16 unused )
  {
      return FALSE;
  }
  
  /***********************************************************************
   *           create_dummy_module
   *
   * Create a dummy NE module for Win32 or Winelib.
   */
  static HMODULE16 create_dummy_module( HMODULE module32 )
  {
      HMODULE16 hModule;
      NE_MODULE *pModule;
      SEGTABLEENTRY *pSegment;
      char *pStr;
      unsigned int len;
      const char *basename, *s;
      OFSTRUCT *ofs;
      int of_size, size;
      char filename[MAX_PATH];
      IMAGE_NT_HEADERS *nt = RtlImageNtHeader( module32 );
  
      if (!nt) return ERROR_BAD_FORMAT;
  
      /* Extract base filename */
      len = GetModuleFileNameA( module32, filename, sizeof(filename) );
      if (!len || len >= sizeof(filename)) return ERROR_BAD_FORMAT;
      basename = strrchr(filename, '\\');
      if (!basename) basename = filename;
      else basename++;
      len = strlen(basename);
      if ((s = strchr(basename, '.'))) len = s - basename;
  
      /* Allocate module */
      of_size = sizeof(OFSTRUCT) - sizeof(ofs->szPathName)
                      + strlen(filename) + 1;
      size = sizeof(NE_MODULE) +
                   /* loaded file info */
                   ((of_size + 3) & ~3) +
                   /* segment table: DS,CS */
                   2 * sizeof(SEGTABLEENTRY) +
                   /* name table */
                   len + 2 +
                   /* several empty tables */
                   8;
  
      hModule = GlobalAlloc16( GMEM_MOVEABLE | GMEM_ZEROINIT, size );
      if (!hModule) return ERROR_BAD_FORMAT;
  
      FarSetOwner16( hModule, hModule );
      pModule = GlobalLock16( hModule );
  
      /* Set all used entries */
      pModule->ne_magic         = IMAGE_OS2_SIGNATURE;
      pModule->count            = 1;
      pModule->next             = 0;
      pModule->ne_flags         = NE_FFLAGS_WIN32;
      pModule->ne_autodata      = 0;
      pModule->ne_sssp          = MAKESEGPTR( 0, 1 );
      pModule->ne_csip          = MAKESEGPTR( 0, 2 );
      pModule->ne_heap          = 0;
      pModule->ne_stack         = 0;
      pModule->ne_cseg          = 2;
      pModule->ne_cmod          = 0;
      pModule->ne_cbnrestab     = 0;
      pModule->fileinfo         = sizeof(NE_MODULE);
      pModule->ne_exetyp        = NE_OSFLAGS_WINDOWS;
      pModule->self             = hModule;
      pModule->module32         = module32;
  
      /* Set version and flags */
      pModule->ne_expver = ((nt->OptionalHeader.MajorSubsystemVersion & 0xff) << 8 ) |
                            (nt->OptionalHeader.MinorSubsystemVersion & 0xff);
      if (nt->FileHeader.Characteristics & IMAGE_FILE_DLL)
          pModule->ne_flags |= NE_FFLAGS_LIBMODULE | NE_FFLAGS_SINGLEDATA;
  
      /* Set loaded file information */
      ofs = (OFSTRUCT *)(pModule + 1);
      memset( ofs, 0, of_size );
      ofs->cBytes = of_size < 256 ? of_size : 255;   /* FIXME */
      strcpy( ofs->szPathName, filename );
  
      pSegment = (SEGTABLEENTRY*)((char*)(pModule + 1) + ((of_size + 3) & ~3));
      pModule->ne_segtab = (char *)pSegment - (char *)pModule;
      /* Data segment */
      pSegment->size    = 0;
      pSegment->flags   = NE_SEGFLAGS_DATA;
      pSegment->minsize = 0x1000;
      pSegment++;
      /* Code segment */
      pSegment->flags   = 0;
      pSegment++;
  
      /* Module name */
      pStr = (char *)pSegment;
      pModule->ne_restab = pStr - (char *)pModule;
      assert(len<256);
      *pStr = len;
      lstrcpynA( pStr+1, basename, len+1 );
      pStr += len+2;
  
      /* All tables zero terminated */
      pModule->ne_rsrctab = pModule->ne_imptab = pModule->ne_enttab = pStr - (char *)pModule;
  
      NE_RegisterModule( pModule );
      pModule->owner32 = LoadLibraryA( filename );  /* increment the ref count of the 32-bit module */
      return hModule;
  }
  
  /***********************************************************************
   *           PrivateLoadLibrary       (KERNEL32.@)
   *
   * FIXME: rough guesswork, don't know what "Private" means
   */
  HINSTANCE16 WINAPI PrivateLoadLibrary(LPCSTR libname)
  {
      return LoadLibrary16(libname);
  }
  
  /***********************************************************************
   *           PrivateFreeLibrary       (KERNEL32.@)
   *
   * FIXME: rough guesswork, don't know what "Private" means
   */
  void WINAPI PrivateFreeLibrary(HINSTANCE16 handle)
  {
      FreeLibrary16(handle);
  }
  
  /***********************************************************************
   *           LoadLibrary32        (KERNEL.452)
   *           LoadSystemLibrary32  (KERNEL.482)
   */
  HMODULE WINAPI LoadLibrary32_16( LPCSTR libname )
  {
      HMODULE hModule;
      DWORD count;
  
      ReleaseThunkLock( &count );
      hModule = LoadLibraryA( libname );
      RestoreThunkLock( count );
      return hModule;
  }
  
  /***************************************************************************
   *		MapHModuleLS			(KERNEL32.@)
   */
  HMODULE16 WINAPI MapHModuleLS(HMODULE hmod)
  {
      HMODULE16 ret;
      NE_MODULE *pModule;
  
      if (!hmod)
          return TASK_GetCurrent()->hInstance;
      if (!HIWORD(hmod))
          return LOWORD(hmod); /* we already have a 16 bit module handle */
      pModule = GlobalLock16(hFirstModule);
      while (pModule)  {
          if (pModule->module32 == hmod)
              return pModule->self;
          pModule = GlobalLock16(pModule->next);
      }
      if ((ret = create_dummy_module( hmod )) < 32)
      {
          SetLastError(ret);
          ret = 0;
      }
      return ret;
  }
  
  /***************************************************************************
   *		MapHModuleSL			(KERNEL32.@)
   */
  HMODULE WINAPI MapHModuleSL(HMODULE16 hmod)
  {
      NE_MODULE *pModule;
  
      if (!hmod) {
          TDB *pTask = TASK_GetCurrent();
          hmod = pTask->hModule;
      }
      pModule = GlobalLock16(hmod);
      if ((pModule->ne_magic != IMAGE_OS2_SIGNATURE) || !(pModule->ne_flags & NE_FFLAGS_WIN32))
          return 0;
      return pModule->module32;
  }
  
  /***************************************************************************
   *		MapHInstLS			(KERNEL.472)
   */
  void WINAPI MapHInstLS16( CONTEXT *context )
  {
      context->Eax = MapHModuleLS( (HMODULE)context->Eax );
  }
  
  /***************************************************************************
   *		MapHInstSL			(KERNEL.473)
   */
  void WINAPI MapHInstSL16( CONTEXT *context )
  {
      context->Eax = (DWORD)MapHModuleSL( context->Eax );
  }
  
  /***************************************************************************
   *		MapHInstLS			(KERNEL32.@)
   */
  __ASM_STDCALL_FUNC( MapHInstLS, 0,
                     "pushl %eax\n\t"
                     "call " __ASM_STDCALL("MapHModuleLS",4) "\n\t"
                     "ret" )
  
  /***************************************************************************
   *		MapHInstSL			(KERNEL32.@)
   */
  __ASM_STDCALL_FUNC( MapHInstSL, 0,
                     "pushl %eax\n\t"
                     "call " __ASM_STDCALL("MapHModuleSL",4) "\n\t"
                     "ret" )
  
  /***************************************************************************
   *		MapHInstLS_PN			(KERNEL32.@)
   */
  __ASM_STDCALL_FUNC( MapHInstLS_PN, 0,
                     "testl %eax,%eax\n\t"
                     "jz 1f\n\t"
                     "pushl %eax\n\t"
                     "call " __ASM_STDCALL("MapHModuleLS",4) "\n"
                     "1:\tret" )
  
  /***************************************************************************
   *		MapHInstSL_PN			(KERNEL32.@)
   */
  __ASM_STDCALL_FUNC( MapHInstSL_PN, 0,
                     "andl $0xffff,%eax\n\t"
                     "jz 1f\n\t"
                     "pushl %eax\n\t"
                     "call " __ASM_STDCALL("MapHModuleSL",4) "\n"
                     "1:\tret" )
  