4 * Copyright 1995 Alexandre Julliard
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.
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.
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
22 #include "wine/port.h"
38 #include "wine/winbase16.h"
43 #include "builtin16.h"
44 #include "stackframe.h"
46 #include "kernel_private.h"
47 #include "wine/unicode.h"
48 #include "wine/exception.h"
49 #include "wine/debug.h"
51 WINE_DEFAULT_DEBUG_CHANNEL(module);
52 WINE_DECLARE_DEBUG_CHANNEL(loaddll);
55 typedef struct _GPHANDLERDEF
67 struct ne_segment_table_entry_s
69 WORD seg_data_offset; /* Sector offset of segment data */
70 WORD seg_data_length; /* Length of segment data */
71 WORD seg_flags; /* Flags associated with this segment */
72 WORD min_alloc; /* Minimum allocation size for this */
75 #define hFirstModule (pThhook->hExeHead)
79 void *module_start; /* 32-bit address of the module data */
80 int module_size; /* Size of the module data */
81 void *code_start; /* 32-bit address of DLL code */
82 void *data_start; /* 32-bit address of DLL data */
83 const char *owner; /* 32-bit dll that contains this dll */
84 const void *rsrc; /* resources data */
85 } BUILTIN16_DESCRIPTOR;
87 /* Table of all built-in DLLs */
91 static const BUILTIN16_DESCRIPTOR *builtin_dlls[MAX_DLLS];
93 extern void SNOOP16_RegisterDLL(NE_MODULE*,LPCSTR);
94 extern FARPROC16 SNOOP16_GetProcAddress16(HMODULE16,DWORD,FARPROC16);
96 static HINSTANCE16 NE_LoadModule( LPCSTR name, BOOL lib_only );
97 static BOOL16 NE_FreeModule( HMODULE16 hModule, BOOL call_wep );
99 static HINSTANCE16 MODULE_LoadModule16( LPCSTR libname, BOOL implicit, BOOL lib_only );
101 static HMODULE16 NE_GetModuleByFilename( LPCSTR name );
104 static WINE_EXCEPTION_FILTER(page_fault)
106 if (GetExceptionCode() == EXCEPTION_ACCESS_VIOLATION ||
107 GetExceptionCode() == EXCEPTION_PRIV_INSTRUCTION)
108 return EXCEPTION_EXECUTE_HANDLER;
109 return EXCEPTION_CONTINUE_SEARCH;
113 /* patch all the flat cs references of the code segment if necessary */
114 inline static void patch_code_segment( void *code_segment )
117 CALLFROM16 *call = code_segment;
118 if (call->flatcs == wine_get_cs()) return; /* nothing to patch */
119 while (call->pushl == 0x68)
121 call->flatcs = wine_get_cs();
128 /***********************************************************************
131 * locale-independent case conversion for module lookups
133 static int NE_strcasecmp( const char *str1, const char *str2 )
136 for ( ; ; str1++, str2++)
137 if ((ret = RtlUpperChar(*str1) - RtlUpperChar(*str2)) || !*str1) break;
142 /***********************************************************************
145 * locale-independent case conversion for module lookups
147 static int NE_strncasecmp( const char *str1, const char *str2, int len )
150 for ( ; len > 0; len--, str1++, str2++)
151 if ((ret = RtlUpperChar(*str1) - RtlUpperChar(*str2)) || !*str1) break;
156 /***********************************************************************
159 * Find a descriptor in the list
161 static const BUILTIN16_DESCRIPTOR *find_dll_descr( const char *dllname )
164 for (i = 0; i < MAX_DLLS; i++)
166 const BUILTIN16_DESCRIPTOR *descr = builtin_dlls[i];
169 NE_MODULE *pModule = (NE_MODULE *)descr->module_start;
170 OFSTRUCT *pOfs = (OFSTRUCT *)((LPBYTE)pModule + pModule->fileinfo);
171 BYTE *name_table = (BYTE *)pModule + pModule->name_table;
173 /* check the dll file name */
174 if (!NE_strcasecmp( pOfs->szPathName, dllname )) return descr;
175 /* check the dll module name (without extension) */
176 if (!NE_strncasecmp( dllname, name_table+1, *name_table ) &&
177 !strcmp( dllname + *name_table, ".dll" ))
185 /***********************************************************************
186 * __wine_register_dll_16 (KERNEL32.@)
188 * Register a built-in DLL descriptor.
190 void __wine_register_dll_16( const BUILTIN16_DESCRIPTOR *descr )
194 for (i = 0; i < MAX_DLLS; i++)
196 if (builtin_dlls[i]) continue;
197 builtin_dlls[i] = descr;
200 assert( i < MAX_DLLS );
204 /***********************************************************************
205 * __wine_unregister_dll_16 (KERNEL32.@)
207 * Unregister a built-in DLL descriptor.
209 void __wine_unregister_dll_16( const BUILTIN16_DESCRIPTOR *descr )
213 for (i = 0; i < MAX_DLLS; i++)
215 if (builtin_dlls[i] != descr) continue;
216 builtin_dlls[i] = NULL;
222 /***********************************************************************
225 NE_MODULE *NE_GetPtr( HMODULE16 hModule )
227 return (NE_MODULE *)GlobalLock16( GetExePtr(hModule) );
231 /**********************************************************************
234 static void NE_RegisterModule( NE_MODULE *pModule )
236 pModule->next = hFirstModule;
237 hFirstModule = pModule->self;
241 /***********************************************************************
244 void NE_DumpModule( HMODULE16 hModule )
254 if (!(pModule = NE_GetPtr( hModule )))
256 MESSAGE( "**** %04x is not a module handle\n", hModule );
260 /* Dump the module info */
262 DPRINTF( "Module %04x:\n", hModule );
263 DPRINTF( "count=%d flags=%04x heap=%d stack=%d\n",
264 pModule->count, pModule->flags,
265 pModule->heap_size, pModule->stack_size );
266 DPRINTF( "cs:ip=%04x:%04x ss:sp=%04x:%04x ds=%04x nb seg=%d modrefs=%d\n",
267 pModule->cs, pModule->ip, pModule->ss, pModule->sp, pModule->dgroup,
268 pModule->seg_count, pModule->modref_count );
269 DPRINTF( "os_flags=%d swap_area=%d version=%04x\n",
270 pModule->os_flags, pModule->min_swap_area,
271 pModule->expected_version );
272 if (pModule->flags & NE_FFLAGS_WIN32)
273 DPRINTF( "PE module=%p\n", pModule->module32 );
275 /* Dump the file info */
277 DPRINTF( "Filename: '%s'\n", NE_MODULE_NAME(pModule) );
279 /* Dump the segment table */
281 DPRINTF( "Segment table:\n" );
282 pSeg = NE_SEG_TABLE( pModule );
283 for (i = 0; i < pModule->seg_count; i++, pSeg++)
284 DPRINTF( "%02x: pos=%d size=%d flags=%04x minsize=%d hSeg=%04x\n",
285 i + 1, pSeg->filepos, pSeg->size, pSeg->flags,
286 pSeg->minsize, pSeg->hSeg );
288 /* Dump the resource table */
290 DPRINTF( "Resource table:\n" );
291 if (pModule->res_table)
293 pword = (WORD *)((BYTE *)pModule + pModule->res_table);
294 DPRINTF( "Alignment: %d\n", *pword++ );
297 NE_TYPEINFO *ptr = (NE_TYPEINFO *)pword;
298 NE_NAMEINFO *pname = (NE_NAMEINFO *)(ptr + 1);
299 DPRINTF( "id=%04x count=%d\n", ptr->type_id, ptr->count );
300 for (i = 0; i < ptr->count; i++, pname++)
301 DPRINTF( "offset=%d len=%d id=%04x\n",
302 pname->offset, pname->length, pname->id );
303 pword = (WORD *)pname;
306 else DPRINTF( "None\n" );
308 /* Dump the resident name table */
310 DPRINTF( "Resident-name table:\n" );
311 pstr = (char *)pModule + pModule->name_table;
314 DPRINTF( "%*.*s: %d\n", *pstr, *pstr, pstr + 1,
315 *(WORD *)(pstr + *pstr + 1) );
316 pstr += *pstr + 1 + sizeof(WORD);
319 /* Dump the module reference table */
321 DPRINTF( "Module ref table:\n" );
322 if (pModule->modref_table)
324 pword = (WORD *)((BYTE *)pModule + pModule->modref_table);
325 for (i = 0; i < pModule->modref_count; i++, pword++)
328 GetModuleName16( *pword, name, sizeof(name) );
329 DPRINTF( "%d: %04x -> '%s'\n", i, *pword, name );
332 else DPRINTF( "None\n" );
334 /* Dump the entry table */
336 DPRINTF( "Entry table:\n" );
337 bundle = (ET_BUNDLE *)((BYTE *)pModule+pModule->entry_table);
339 entry = (ET_ENTRY *)((BYTE *)bundle+6);
340 DPRINTF( "Bundle %d-%d: %02x\n", bundle->first, bundle->last, entry->type);
341 ordinal = bundle->first;
342 while (ordinal < bundle->last)
344 if (entry->type == 0xff)
345 DPRINTF("%d: %02x:%04x (moveable)\n", ordinal++, entry->segnum, entry->offs);
347 DPRINTF("%d: %02x:%04x (fixed)\n", ordinal++, entry->segnum, entry->offs);
350 } while ( (bundle->next) && (bundle = ((ET_BUNDLE *)((BYTE *)pModule + bundle->next))) );
352 /* Dump the non-resident names table */
354 DPRINTF( "Non-resident names table:\n" );
355 if (pModule->nrname_handle)
357 pstr = (char *)GlobalLock16( pModule->nrname_handle );
360 DPRINTF( "%*.*s: %d\n", *pstr, *pstr, pstr + 1,
361 *(WORD *)(pstr + *pstr + 1) );
362 pstr += *pstr + 1 + sizeof(WORD);
369 /***********************************************************************
372 * Walk the module list and print the modules.
374 void NE_WalkModules(void)
376 HMODULE16 hModule = hFirstModule;
377 MESSAGE( "Module Flags Name\n" );
380 NE_MODULE *pModule = NE_GetPtr( hModule );
383 MESSAGE( "Bad module %04x in list\n", hModule );
386 MESSAGE( " %04x %04x %.*s\n", hModule, pModule->flags,
387 *((char *)pModule + pModule->name_table),
388 (char *)pModule + pModule->name_table + 1 );
389 hModule = pModule->next;
394 /***********************************************************************
395 * NE_InitResourceHandler
397 * Fill in 'resloader' fields in the resource table.
399 static void NE_InitResourceHandler( NE_MODULE *pModule )
401 static FARPROC16 proc;
403 NE_TYPEINFO *pTypeInfo = (NE_TYPEINFO *)((char *)pModule + pModule->res_table + 2);
405 TRACE("InitResourceHandler[%04x]\n", pModule->self );
407 if (!proc) proc = GetProcAddress16( GetModuleHandle16("KERNEL"), "DefResourceHandler" );
409 while(pTypeInfo->type_id)
411 memcpy_unaligned( &pTypeInfo->resloader, &proc, sizeof(FARPROC16) );
412 pTypeInfo = (NE_TYPEINFO *)((char*)(pTypeInfo + 1) + pTypeInfo->count * sizeof(NE_NAMEINFO));
417 /***********************************************************************
420 * Lookup the ordinal for a given name.
422 WORD NE_GetOrdinal( HMODULE16 hModule, const char *name )
424 unsigned char buffer[256], *cpnt;
428 if (!(pModule = NE_GetPtr( hModule ))) return 0;
429 if (pModule->flags & NE_FFLAGS_WIN32) return 0;
431 TRACE("(%04x,'%s')\n", hModule, name );
433 /* First handle names of the form '#xxxx' */
435 if (name[0] == '#') return atoi( name + 1 );
437 /* Now copy and uppercase the string */
439 strcpy( buffer, name );
440 for (cpnt = buffer; *cpnt; cpnt++) *cpnt = RtlUpperChar(*cpnt);
443 /* First search the resident names */
445 cpnt = (char *)pModule + pModule->name_table;
447 /* Skip the first entry (module name) */
448 cpnt += *cpnt + 1 + sizeof(WORD);
451 if (((BYTE)*cpnt == len) && !memcmp( cpnt+1, buffer, len ))
454 memcpy( &ordinal, cpnt + *cpnt + 1, sizeof(ordinal) );
455 TRACE(" Found: ordinal=%d\n", ordinal );
458 cpnt += *cpnt + 1 + sizeof(WORD);
461 /* Now search the non-resident names table */
463 if (!pModule->nrname_handle) return 0; /* No non-resident table */
464 cpnt = (char *)GlobalLock16( pModule->nrname_handle );
466 /* Skip the first entry (module description string) */
467 cpnt += *cpnt + 1 + sizeof(WORD);
470 if (((BYTE)*cpnt == len) && !memcmp( cpnt+1, buffer, len ))
473 memcpy( &ordinal, cpnt + *cpnt + 1, sizeof(ordinal) );
474 TRACE(" Found: ordinal=%d\n", ordinal );
477 cpnt += *cpnt + 1 + sizeof(WORD);
483 /***********************************************************************
486 FARPROC16 WINAPI NE_GetEntryPoint( HMODULE16 hModule, WORD ordinal )
488 return NE_GetEntryPointEx( hModule, ordinal, TRUE );
491 /***********************************************************************
494 FARPROC16 NE_GetEntryPointEx( HMODULE16 hModule, WORD ordinal, BOOL16 snoop )
502 if (!(pModule = NE_GetPtr( hModule ))) return 0;
503 assert( !(pModule->flags & NE_FFLAGS_WIN32) );
505 bundle = (ET_BUNDLE *)((BYTE *)pModule + pModule->entry_table);
506 while ((ordinal < bundle->first + 1) || (ordinal > bundle->last))
510 bundle = (ET_BUNDLE *)((BYTE *)pModule + bundle->next);
513 entry = (ET_ENTRY *)((BYTE *)bundle+6);
514 for (i=0; i < (ordinal - bundle->first - 1); i++)
518 memcpy( &offset, &entry->offs, sizeof(WORD) );
520 if (sel == 0xfe) sel = 0xffff; /* constant entry */
521 else sel = GlobalHandleToSel16(NE_SEG_TABLE(pModule)[sel-1].hSeg);
523 return (FARPROC16)MAKESEGPTR( sel, offset );
525 return (FARPROC16)MAKESEGPTR( sel, offset );
527 return (FARPROC16)SNOOP16_GetProcAddress16(hModule,ordinal,(FARPROC16)MAKESEGPTR( sel, offset ));
531 /***********************************************************************
532 * EntryAddrProc (KERNEL.667) Wine-specific export
534 * Return the entry point for a given ordinal.
536 FARPROC16 WINAPI EntryAddrProc16( HMODULE16 hModule, WORD ordinal )
538 FARPROC16 ret = NE_GetEntryPointEx( hModule, ordinal, TRUE );
539 CURRENT_STACK16->ecx = hModule; /* FIXME: might be incorrect value */
543 /***********************************************************************
546 * Change the value of an entry point. Use with caution!
547 * It can only change the offset value, not the selector.
549 BOOL16 NE_SetEntryPoint( HMODULE16 hModule, WORD ordinal, WORD offset )
556 if (!(pModule = NE_GetPtr( hModule ))) return FALSE;
557 assert( !(pModule->flags & NE_FFLAGS_WIN32) );
559 bundle = (ET_BUNDLE *)((BYTE *)pModule + pModule->entry_table);
560 while ((ordinal < bundle->first + 1) || (ordinal > bundle->last))
562 bundle = (ET_BUNDLE *)((BYTE *)pModule + bundle->next);
563 if (!(bundle->next)) return 0;
566 entry = (ET_ENTRY *)((BYTE *)bundle+6);
567 for (i=0; i < (ordinal - bundle->first - 1); i++)
570 memcpy( &entry->offs, &offset, sizeof(WORD) );
575 /***********************************************************************
578 HANDLE NE_OpenFile( NE_MODULE *pModule )
581 char *name = NE_MODULE_NAME( pModule );
583 TRACE("(%p)\n", pModule );
587 if (!DuplicateHandle( GetCurrentProcess(), pModule->fd,
588 GetCurrentProcess(), &handle, 0, FALSE,
589 DUPLICATE_SAME_ACCESS )) handle = INVALID_HANDLE_VALUE;
593 handle = CreateFileA( name, GENERIC_READ, FILE_SHARE_READ,
594 NULL, OPEN_EXISTING, 0, 0 );
596 if (handle == INVALID_HANDLE_VALUE)
597 ERR( "Can't open file '%s' for module %04x\n", name, pModule->self );
599 TRACE("opened '%s' -> %p\n", name, handle);
604 /* wrapper for SetFilePointer and ReadFile */
605 static BOOL read_data( HANDLE handle, LONG offset, void *buffer, DWORD size )
609 if (SetFilePointer( handle, offset, NULL, SEEK_SET ) == INVALID_SET_FILE_POINTER) return FALSE;
610 if (!ReadFile( handle, buffer, size, &result, NULL )) return FALSE;
611 return (result == size);
614 /***********************************************************************
617 static HMODULE16 NE_LoadExeHeader( HANDLE handle, LPCSTR path )
619 IMAGE_DOS_HEADER mz_header;
620 IMAGE_OS2_HEADER ne_header;
624 BYTE *pData, *pTempEntryTable;
625 char *buffer, *fastload = NULL;
626 unsigned int fastload_offset = 0, fastload_length = 0;
628 ET_BUNDLE *bundle, *oldbundle;
631 /* Read a block from either the file or the fast-load area. */
632 #define READ(offset,size,buffer) \
633 ((fastload && ((offset) >= fastload_offset) && \
634 ((offset)+(size) <= fastload_offset+fastload_length)) ? \
635 (memcpy( buffer, fastload+(offset)-fastload_offset, (size) ), TRUE) : \
636 read_data( handle, (offset), (buffer), (size)))
638 if (!read_data( handle, 0, &mz_header, sizeof(mz_header)) ||
639 (mz_header.e_magic != IMAGE_DOS_SIGNATURE))
640 return (HMODULE16)11; /* invalid exe */
642 if (!read_data( handle, mz_header.e_lfanew, &ne_header, sizeof(ne_header) ))
643 return (HMODULE16)11; /* invalid exe */
645 if (ne_header.ne_magic == IMAGE_NT_SIGNATURE) return (HMODULE16)21; /* win32 exe */
646 if (ne_header.ne_magic == IMAGE_OS2_SIGNATURE_LX) {
647 MESSAGE("Sorry, this is an OS/2 linear executable (LX) file!\n");
648 return (HMODULE16)12;
650 if (ne_header.ne_magic != IMAGE_OS2_SIGNATURE) return (HMODULE16)11; /* invalid exe */
652 /* We now have a valid NE header */
654 /* check to be able to fall back to loading OS/2 programs as DOS
655 * FIXME: should this check be reversed in order to be less strict?
656 * (only fail for OS/2 ne_exetyp 0x01 here?) */
657 if ((ne_header.ne_exetyp != 0x02 /* Windows */)
658 && (ne_header.ne_exetyp != 0x04) /* Windows 386 */)
659 return (HMODULE16)11; /* invalid exe */
661 size = sizeof(NE_MODULE) +
663 ne_header.ne_cseg * sizeof(SEGTABLEENTRY) +
665 ne_header.ne_restab - ne_header.ne_rsrctab +
666 /* resident names table */
667 ne_header.ne_modtab - ne_header.ne_restab +
668 /* module ref table */
669 ne_header.ne_cmod * sizeof(WORD) +
670 /* imported names table */
671 ne_header.ne_enttab - ne_header.ne_imptab +
672 /* entry table length */
673 ne_header.ne_cbenttab +
674 /* entry table extra conversion space */
676 2 * (ne_header.ne_cbenttab - ne_header.ne_cmovent*6) +
677 /* loaded file info */
678 sizeof(OFSTRUCT) - sizeof(ofs->szPathName) + strlen(path) + 1;
680 hModule = GlobalAlloc16( GMEM_FIXED | GMEM_ZEROINIT, size );
681 if (!hModule) return (HMODULE16)11; /* invalid exe */
683 FarSetOwner16( hModule, hModule );
684 pModule = (NE_MODULE *)GlobalLock16( hModule );
685 memcpy( pModule, &ne_header, sizeof(ne_header) );
687 /* check *programs* for default minimal stack size */
688 if ( (!(pModule->flags & NE_FFLAGS_LIBMODULE))
689 && (pModule->stack_size < 0x1400) )
690 pModule->stack_size = 0x1400;
691 pModule->module32 = 0;
692 pModule->self = hModule;
693 pModule->self_loading_sel = 0;
694 pData = (BYTE *)(pModule + 1);
696 /* Clear internal Wine flags in case they are set in the EXE file */
698 pModule->flags &= ~(NE_FFLAGS_BUILTIN | NE_FFLAGS_WIN32);
700 /* Read the fast-load area */
702 if (ne_header.ne_flagsothers & NE_AFLAGS_FASTLOAD)
704 fastload_offset=ne_header.ne_pretthunks << ne_header.ne_align;
705 fastload_length=ne_header.ne_psegrefbytes << ne_header.ne_align;
706 TRACE("Using fast-load area offset=%x len=%d\n",
707 fastload_offset, fastload_length );
708 if ((fastload = HeapAlloc( GetProcessHeap(), 0, fastload_length )) != NULL)
710 if (!read_data( handle, fastload_offset, fastload, fastload_length))
712 HeapFree( GetProcessHeap(), 0, fastload );
713 WARN("Error reading fast-load area!\n");
719 /* Get the segment table */
721 pModule->seg_table = pData - (BYTE *)pModule;
722 buffer = HeapAlloc( GetProcessHeap(), 0, ne_header.ne_cseg *
723 sizeof(struct ne_segment_table_entry_s));
727 struct ne_segment_table_entry_s *pSeg;
729 if (!READ( mz_header.e_lfanew + ne_header.ne_segtab,
730 ne_header.ne_cseg * sizeof(struct ne_segment_table_entry_s),
733 HeapFree( GetProcessHeap(), 0, buffer );
734 if (fastload) HeapFree( GetProcessHeap(), 0, fastload );
735 GlobalFree16( hModule );
736 return (HMODULE16)11; /* invalid exe */
738 pSeg = (struct ne_segment_table_entry_s *)buffer;
739 for (i = ne_header.ne_cseg; i > 0; i--, pSeg++)
741 memcpy( pData, pSeg, sizeof(*pSeg) );
742 pData += sizeof(SEGTABLEENTRY);
744 HeapFree( GetProcessHeap(), 0, buffer );
748 if (fastload) HeapFree( GetProcessHeap(), 0, fastload );
749 GlobalFree16( hModule );
750 return (HMODULE16)11; /* invalid exe */
753 /* Get the resource table */
755 if (ne_header.ne_rsrctab < ne_header.ne_restab)
757 pModule->res_table = pData - (BYTE *)pModule;
758 if (!READ(mz_header.e_lfanew + ne_header.ne_rsrctab,
759 ne_header.ne_restab - ne_header.ne_rsrctab,
761 return (HMODULE16)11; /* invalid exe */
762 pData += ne_header.ne_restab - ne_header.ne_rsrctab;
763 NE_InitResourceHandler( pModule );
765 else pModule->res_table = 0; /* No resource table */
767 /* Get the resident names table */
769 pModule->name_table = pData - (BYTE *)pModule;
770 if (!READ( mz_header.e_lfanew + ne_header.ne_restab,
771 ne_header.ne_modtab - ne_header.ne_restab,
774 if (fastload) HeapFree( GetProcessHeap(), 0, fastload );
775 GlobalFree16( hModule );
776 return (HMODULE16)11; /* invalid exe */
778 pData += ne_header.ne_modtab - ne_header.ne_restab;
780 /* Get the module references table */
782 if (ne_header.ne_cmod > 0)
784 pModule->modref_table = pData - (BYTE *)pModule;
785 if (!READ( mz_header.e_lfanew + ne_header.ne_modtab,
786 ne_header.ne_cmod * sizeof(WORD),
789 if (fastload) HeapFree( GetProcessHeap(), 0, fastload );
790 GlobalFree16( hModule );
791 return (HMODULE16)11; /* invalid exe */
793 pData += ne_header.ne_cmod * sizeof(WORD);
795 else pModule->modref_table = 0; /* No module references */
797 /* Get the imported names table */
799 pModule->import_table = pData - (BYTE *)pModule;
800 if (!READ( mz_header.e_lfanew + ne_header.ne_imptab,
801 ne_header.ne_enttab - ne_header.ne_imptab,
804 if (fastload) HeapFree( GetProcessHeap(), 0, fastload );
805 GlobalFree16( hModule );
806 return (HMODULE16)11; /* invalid exe */
808 pData += ne_header.ne_enttab - ne_header.ne_imptab;
810 /* Load entry table, convert it to the optimized version used by Windows */
812 if ((pTempEntryTable = HeapAlloc( GetProcessHeap(), 0, ne_header.ne_cbenttab)) != NULL)
814 BYTE nr_entries, type, *s;
816 TRACE("Converting entry table.\n");
817 pModule->entry_table = pData - (BYTE *)pModule;
818 if (!READ( mz_header.e_lfanew + ne_header.ne_enttab,
819 ne_header.ne_cbenttab, pTempEntryTable ))
821 HeapFree( GetProcessHeap(), 0, pTempEntryTable );
822 if (fastload) HeapFree( GetProcessHeap(), 0, fastload );
823 GlobalFree16( hModule );
824 return (HMODULE16)11; /* invalid exe */
828 TRACE("entry table: offs %04x, len %04x, entries %d\n", ne_header.ne_enttab, ne_header.ne_cbenttab, *s);
830 bundle = (ET_BUNDLE *)pData;
831 TRACE("first bundle: %p\n", bundle);
832 memset(bundle, 0, sizeof(ET_BUNDLE)); /* in case no entry table exists */
833 entry = (ET_ENTRY *)((BYTE *)bundle+6);
835 while ((nr_entries = *s++))
839 bundle->last += nr_entries;
846 entry->segnum = *s++;
847 entry->offs = *(WORD *)s; s += 2;
848 /*TRACE(module, "entry: %p, type: %d, flags: %d, segnum: %d, offs: %04x\n", entry, entry->type, entry->flags, entry->segnum, entry->offs);*/
856 entry->segnum = type;
857 entry->offs = *(WORD *)s; s += 2;
858 /*TRACE(module, "entry: %p, type: %d, flags: %d, segnum: %d, offs: %04x\n", entry, entry->type, entry->flags, entry->segnum, entry->offs);*/
864 if (bundle->first == bundle->last)
866 bundle->first += nr_entries;
867 bundle->last += nr_entries;
872 oldbundle->next = ((int)entry - (int)pModule);
873 bundle = (ET_BUNDLE *)entry;
874 TRACE("new bundle: %p\n", bundle);
875 bundle->first = bundle->last =
876 oldbundle->last + nr_entries;
878 entry = (ET_ENTRY*)(((BYTE*)entry)+sizeof(ET_BUNDLE));
882 HeapFree( GetProcessHeap(), 0, pTempEntryTable );
886 if (fastload) HeapFree( GetProcessHeap(), 0, fastload );
887 GlobalFree16( hModule );
888 return (HMODULE16)11; /* invalid exe */
891 pData += ne_header.ne_cbenttab + sizeof(ET_BUNDLE) +
892 2 * (ne_header.ne_cbenttab - ne_header.ne_cmovent*6);
894 if ((DWORD)entry > (DWORD)pData)
895 ERR("converted entry table bigger than reserved space !!!\nentry: %p, pData: %p. Please report !\n", entry, pData);
897 /* Store the filename information */
899 pModule->fileinfo = pData - (BYTE *)pModule;
900 size = sizeof(OFSTRUCT) - sizeof(ofs->szPathName) + strlen(path) + 1;
901 ofs = (OFSTRUCT *)pData;
902 ofs->cBytes = size - 1;
904 strcpy( ofs->szPathName, path );
907 /* Free the fast-load area */
910 if (fastload) HeapFree( GetProcessHeap(), 0, fastload );
912 /* Get the non-resident names table */
914 if (ne_header.ne_cbnrestab)
916 pModule->nrname_handle = GlobalAlloc16( 0, ne_header.ne_cbnrestab );
917 if (!pModule->nrname_handle)
919 GlobalFree16( hModule );
920 return (HMODULE16)11; /* invalid exe */
922 FarSetOwner16( pModule->nrname_handle, hModule );
923 buffer = GlobalLock16( pModule->nrname_handle );
924 if (!read_data( handle, ne_header.ne_nrestab, buffer, ne_header.ne_cbnrestab ))
926 GlobalFree16( pModule->nrname_handle );
927 GlobalFree16( hModule );
928 return (HMODULE16)11; /* invalid exe */
931 else pModule->nrname_handle = 0;
933 /* Allocate a segment for the implicitly-loaded DLLs */
935 if (pModule->modref_count)
937 pModule->dlls_to_init = GlobalAlloc16( GMEM_ZEROINIT,
938 (pModule->modref_count+1)*sizeof(HMODULE16) );
939 if (!pModule->dlls_to_init)
941 if (pModule->nrname_handle) GlobalFree16( pModule->nrname_handle );
942 GlobalFree16( hModule );
943 return (HMODULE16)11; /* invalid exe */
945 FarSetOwner16( pModule->dlls_to_init, hModule );
947 else pModule->dlls_to_init = 0;
949 NE_RegisterModule( pModule );
950 SNOOP16_RegisterDLL(pModule,path);
955 /***********************************************************************
958 * Load all DLLs implicitly linked to a module.
960 static BOOL NE_LoadDLLs( NE_MODULE *pModule )
963 WORD *pModRef = (WORD *)((char *)pModule + pModule->modref_table);
964 WORD *pDLLs = (WORD *)GlobalLock16( pModule->dlls_to_init );
966 for (i = 0; i < pModule->modref_count; i++, pModRef++)
968 char buffer[260], *p;
969 BYTE *pstr = (BYTE *)pModule + pModule->import_table + *pModRef;
970 memcpy( buffer, pstr + 1, *pstr );
971 *(buffer + *pstr) = 0; /* terminate it */
973 TRACE("Loading '%s'\n", buffer );
974 if (!(*pModRef = GetModuleHandle16( buffer )))
976 /* If the DLL is not loaded yet, load it and store */
977 /* its handle in the list of DLLs to initialize. */
980 /* Append .DLL to name if no extension present */
981 if (!(p = strrchr( buffer, '.')) || strchr( p, '/' ) || strchr( p, '\\'))
982 strcat( buffer, ".DLL" );
984 if ((hDLL = MODULE_LoadModule16( buffer, TRUE, TRUE )) < 32)
986 /* FIXME: cleanup what was done */
988 MESSAGE( "Could not load '%s' required by '%.*s', error=%d\n",
989 buffer, *((BYTE*)pModule + pModule->name_table),
990 (char *)pModule + pModule->name_table + 1, hDLL );
993 *pModRef = GetExePtr( hDLL );
996 else /* Increment the reference count of the DLL */
998 NE_MODULE *pOldDLL = NE_GetPtr( *pModRef );
999 if (pOldDLL) pOldDLL->count++;
1006 /**********************************************************************
1009 * Load first instance of NE module from file.
1011 * pModule must point to a module structure prepared by NE_LoadExeHeader.
1012 * This routine must never be called twice on a module.
1015 static HINSTANCE16 NE_DoLoadModule( NE_MODULE *pModule )
1017 /* Allocate the segments for this module */
1019 if (!NE_CreateAllSegments( pModule ))
1020 return ERROR_NOT_ENOUGH_MEMORY; /* 8 */
1022 /* Load the referenced DLLs */
1024 if (!NE_LoadDLLs( pModule ))
1025 return ERROR_FILE_NOT_FOUND; /* 2 */
1027 /* Load the segments */
1029 NE_LoadAllSegments( pModule );
1031 /* Make sure the usage count is 1 on the first loading of */
1032 /* the module, even if it contains circular DLL references */
1036 return NE_GetInstance( pModule );
1039 /**********************************************************************
1042 * Load first instance of NE module. (Note: caller is responsible for
1043 * ensuring the module isn't already loaded!)
1045 * If the module turns out to be an executable module, only a
1046 * handle to a module stub is returned; this needs to be initialized
1047 * by calling NE_DoLoadModule later, in the context of the newly
1050 * If lib_only is TRUE, however, the module is perforce treated
1051 * like a DLL module, even if it is an executable module.
1054 static HINSTANCE16 NE_LoadModule( LPCSTR name, BOOL lib_only )
1058 HINSTANCE16 hInstance;
1064 if ((hFile = OpenFile16( name, &ofs, OF_READ|OF_SHARE_DENY_WRITE )) == HFILE_ERROR16)
1065 return ERROR_FILE_NOT_FOUND;
1067 hModule = NE_LoadExeHeader( DosFileHandleToWin32Handle(hFile), ofs.szPathName );
1073 pModule = NE_GetPtr( hModule );
1075 drive_type = GetDriveTypeA( ofs.szPathName );
1076 if (drive_type != DRIVE_REMOVABLE && drive_type != DRIVE_CDROM)
1078 /* keep the file handle open if not on a removable media */
1079 DuplicateHandle( GetCurrentProcess(), DosFileHandleToWin32Handle(hFile),
1080 GetCurrentProcess(), &pModule->fd, 0, FALSE,
1081 DUPLICATE_SAME_ACCESS );
1085 if ( !lib_only && !( pModule->flags & NE_FFLAGS_LIBMODULE ) )
1088 hInstance = NE_DoLoadModule( pModule );
1089 if ( hInstance < 32 )
1092 NE_FreeModule( hModule, 0 );
1099 /***********************************************************************
1100 * NE_DoLoadBuiltinModule
1102 * Load a built-in Win16 module. Helper function for NE_LoadBuiltinModule.
1104 static HMODULE16 NE_DoLoadBuiltinModule( const BUILTIN16_DESCRIPTOR *descr )
1108 SEGTABLEENTRY *pSegTable;
1111 hModule = GLOBAL_CreateBlock( GMEM_MOVEABLE, descr->module_start,
1112 descr->module_size, 0, WINE_LDT_FLAGS_DATA );
1113 if (!hModule) return ERROR_NOT_ENOUGH_MEMORY;
1114 FarSetOwner16( hModule, hModule );
1116 pModule = (NE_MODULE *)GlobalLock16( hModule );
1117 pModule->self = hModule;
1118 /* NOTE: (Ab)use the hRsrcMap parameter for resource data pointer */
1119 pModule->hRsrcMap = (void *)descr->rsrc;
1121 /* Allocate the code segment */
1123 pSegTable = NE_SEG_TABLE( pModule );
1124 pSegTable->hSeg = GLOBAL_CreateBlock( GMEM_FIXED, descr->code_start,
1125 pSegTable->minsize, hModule,
1126 WINE_LDT_FLAGS_CODE|WINE_LDT_FLAGS_32BIT );
1127 if (!pSegTable->hSeg) return ERROR_NOT_ENOUGH_MEMORY;
1128 patch_code_segment( descr->code_start );
1131 /* Allocate the data segment */
1133 minsize = pSegTable->minsize ? pSegTable->minsize : 0x10000;
1134 minsize += pModule->heap_size;
1135 if (minsize > 0x10000) minsize = 0x10000;
1136 pSegTable->hSeg = GlobalAlloc16( GMEM_FIXED, minsize );
1137 if (!pSegTable->hSeg) return ERROR_NOT_ENOUGH_MEMORY;
1138 FarSetOwner16( pSegTable->hSeg, hModule );
1139 if (pSegTable->minsize) memcpy( GlobalLock16( pSegTable->hSeg ),
1140 descr->data_start, pSegTable->minsize);
1141 if (pModule->heap_size)
1142 LocalInit16( GlobalHandleToSel16(pSegTable->hSeg), pSegTable->minsize, minsize );
1144 if (descr->rsrc) NE_InitResourceHandler(pModule);
1146 NE_RegisterModule( pModule );
1152 /**********************************************************************
1153 * MODULE_LoadModule16
1155 * Load a NE module in the order of the loadorder specification.
1156 * The caller is responsible that the module is not loaded already.
1159 static HINSTANCE16 MODULE_LoadModule16( LPCSTR libname, BOOL implicit, BOOL lib_only )
1161 HINSTANCE16 hinst = 2;
1164 const BUILTIN16_DESCRIPTOR *descr = NULL;
1165 char dllname[20], owner[20], *p;
1166 const char *basename;
1168 /* strip path information */
1171 if (basename[0] && basename[1] == ':') basename += 2; /* strip drive specification */
1172 if ((p = strrchr( basename, '\\' ))) basename = p + 1;
1173 if ((p = strrchr( basename, '/' ))) basename = p + 1;
1175 if (strlen(basename) < sizeof(dllname)-4)
1179 strcpy( dllname, basename );
1180 p = strrchr( dllname, '.' );
1181 if (!p) strcat( dllname, ".dll" );
1182 for (p = dllname; *p; p++) if (*p >= 'A' && *p <= 'Z') *p += 32;
1184 if (wine_dll_get_owner( dllname, owner, sizeof(owner), &file_exists ) == -1)
1186 if (file_exists) return 21; /* it may be a Win32 module then */
1188 else /* found 32-bit owner, try to load it */
1190 HMODULE mod32 = LoadLibraryA( owner );
1193 if (!(descr = find_dll_descr( dllname ))) FreeLibrary( mod32 );
1194 /* loading the 32-bit library can have the side effect of loading the module */
1195 /* if so, simply incr the ref count and return the module */
1196 if ((hModule = GetModuleHandle16( libname )))
1198 TRACE( "module %s already loaded by owner\n", libname );
1199 pModule = NE_GetPtr( hModule );
1200 if (pModule) pModule->count++;
1206 /* it's probably disabled by the load order config */
1207 WARN( "couldn't load owner %s for 16-bit dll %s\n", owner, dllname );
1208 return ERROR_FILE_NOT_FOUND;
1215 TRACE("Trying built-in '%s'\n", libname);
1216 hinst = NE_DoLoadBuiltinModule( descr );
1217 if (hinst > 32) TRACE_(loaddll)("Loaded module %s : builtin\n", debugstr_a(libname));
1221 TRACE("Trying native dll '%s'\n", libname);
1222 hinst = NE_LoadModule(libname, lib_only);
1223 if (hinst > 32) TRACE_(loaddll)("Loaded module %s : native\n", debugstr_a(libname));
1226 if (hinst > 32 && !implicit)
1228 hModule = GetModuleHandle16(libname);
1231 ERR("Serious trouble. Just loaded module '%s' (hinst=0x%04x), but can't get module handle. Filename too long ?\n",
1233 return ERROR_INVALID_HANDLE;
1236 pModule = NE_GetPtr(hModule);
1239 ERR("Serious trouble. Just loaded module '%s' (hinst=0x%04x), but can't get NE_MODULE pointer\n",
1241 return ERROR_INVALID_HANDLE;
1244 TRACE("Loaded module '%s' at 0x%04x.\n", libname, hinst);
1247 * Call initialization routines for all loaded DLLs. Note that
1248 * when we load implicitly linked DLLs this will be done by InitTask().
1250 if(pModule->flags & NE_FFLAGS_LIBMODULE)
1252 NE_InitializeDLLs(hModule);
1253 NE_DllProcessAttach(hModule);
1256 return hinst; /* The last error that occurred */
1260 /**********************************************************************
1263 * Create the thread for a 16-bit module.
1265 static HINSTANCE16 NE_CreateThread( NE_MODULE *pModule, WORD cmdShow, LPCSTR cmdline )
1270 HINSTANCE16 instance = 0;
1272 if (!(hTask = TASK_SpawnTask( pModule, cmdShow, cmdline + 1, *cmdline, &hThread )))
1275 /* Post event to start the task */
1276 PostEvent16( hTask );
1278 /* Wait until we get the instance handle */
1281 DirectedYield16( hTask );
1282 if (!IsTask16( hTask )) /* thread has died */
1285 WaitForSingleObject( hThread, INFINITE );
1286 GetExitCodeThread( hThread, &exit_code );
1287 CloseHandle( hThread );
1290 if (!(pTask = GlobalLock16( hTask ))) break;
1291 instance = pTask->hInstance;
1292 GlobalUnlock16( hTask );
1293 } while (!instance);
1295 CloseHandle( hThread );
1300 /**********************************************************************
1301 * LoadModule (KERNEL.45)
1303 HINSTANCE16 WINAPI LoadModule16( LPCSTR name, LPVOID paramBlock )
1305 BOOL lib_only = !paramBlock || (paramBlock == (LPVOID)-1);
1306 LOADPARAMS16 *params;
1314 if ( (hModule = NE_GetModuleByFilename(name) ) != 0 )
1316 /* Special case: second instance of an already loaded NE module */
1318 if ( !( pModule = NE_GetPtr( hModule ) ) ) return (HINSTANCE16)11;
1319 if ( pModule->module32 ) return (HINSTANCE16)21;
1321 /* Increment refcount */
1327 /* Main case: load first instance of NE module */
1329 if ( (hModule = MODULE_LoadModule16( name, FALSE, lib_only )) < 32 )
1332 if ( !(pModule = NE_GetPtr( hModule )) )
1333 return (HINSTANCE16)11;
1336 /* If library module, we just retrieve the instance handle */
1338 if ( ( pModule->flags & NE_FFLAGS_LIBMODULE ) || lib_only )
1339 return NE_GetInstance( pModule );
1342 * At this point, we need to create a new process.
1344 * pModule points either to an already loaded module, whose refcount
1345 * has already been incremented (to avoid having the module vanish
1346 * in the meantime), or else to a stub module which contains only header
1349 params = (LOADPARAMS16 *)paramBlock;
1350 cmdShow = ((WORD *)MapSL(params->showCmd))[1];
1351 cmdline = MapSL( params->cmdLine );
1352 return NE_CreateThread( pModule, cmdShow, cmdline );
1356 /**********************************************************************
1359 * Startup code for a new 16-bit task.
1361 DWORD NE_StartTask(void)
1363 TDB *pTask = TASK_GetCurrent();
1364 NE_MODULE *pModule = NE_GetPtr( pTask->hModule );
1365 HINSTANCE16 hInstance, hPrevInstance;
1366 SEGTABLEENTRY *pSegTable = NE_SEG_TABLE( pModule );
1369 if ( pModule->count > 0 )
1371 /* Second instance of an already loaded NE module */
1372 /* Note that the refcount was already incremented by the parent */
1374 hPrevInstance = NE_GetInstance( pModule );
1376 if ( pModule->dgroup )
1377 if ( NE_CreateSegment( pModule, pModule->dgroup ) )
1378 NE_LoadSegment( pModule, pModule->dgroup );
1380 hInstance = NE_GetInstance( pModule );
1381 TRACE("created second instance %04x[%d] of instance %04x.\n", hInstance, pModule->dgroup, hPrevInstance);
1386 /* Load first instance of NE module */
1388 pModule->flags |= NE_FFLAGS_GUI; /* FIXME: is this necessary? */
1390 hInstance = NE_DoLoadModule( pModule );
1394 if ( hInstance >= 32 )
1398 /* Enter instance handles into task struct */
1400 pTask->hInstance = hInstance;
1401 pTask->hPrevInstance = hPrevInstance;
1403 /* Use DGROUP for 16-bit stack */
1405 if (!(sp = pModule->sp))
1406 sp = pSegTable[pModule->ss-1].minsize + pModule->stack_size;
1408 sp -= sizeof(STACK16FRAME);
1409 NtCurrentTeb()->cur_stack = MAKESEGPTR( GlobalHandleToSel16(hInstance), sp );
1411 /* Registers at initialization must be:
1413 * bx stack size in bytes
1414 * cx heap size in bytes
1415 * si previous app instance
1416 * di current app instance
1418 * es selector to the PSP
1419 * ds dgroup of the application
1421 * sp top of the stack
1423 memset( &context, 0, sizeof(context) );
1424 context.SegCs = GlobalHandleToSel16(pSegTable[pModule->cs - 1].hSeg);
1425 context.SegDs = GlobalHandleToSel16(pTask->hInstance);
1426 context.SegEs = pTask->hPDB;
1427 context.SegFs = wine_get_fs();
1428 context.SegGs = wine_get_gs();
1429 context.Eip = pModule->ip;
1430 context.Ebx = pModule->stack_size;
1431 context.Ecx = pModule->heap_size;
1432 context.Edi = pTask->hInstance;
1433 context.Esi = pTask->hPrevInstance;
1435 /* Now call 16-bit entry point */
1437 TRACE("Starting main program: cs:ip=%04lx:%04lx ds=%04lx ss:sp=%04x:%04x\n",
1438 context.SegCs, context.Eip, context.SegDs,
1439 SELECTOROF(NtCurrentTeb()->cur_stack),
1440 OFFSETOF(NtCurrentTeb()->cur_stack) );
1442 WOWCallback16Ex( 0, WCB16_REGS, 0, NULL, (DWORD *)&context );
1443 ExitThread( LOWORD(context.Eax) );
1445 return hInstance; /* error code */
1448 /***********************************************************************
1449 * LoadLibrary (KERNEL.95)
1450 * LoadLibrary16 (KERNEL32.35)
1452 HINSTANCE16 WINAPI LoadLibrary16( LPCSTR libname )
1454 return LoadModule16(libname, (LPVOID)-1 );
1458 /**********************************************************************
1461 * Call a DLL's WEP, allowing it to shut down.
1462 * FIXME: we always pass the WEP WEP_FREE_DLL, never WEP_SYSTEM_EXIT
1464 static BOOL16 MODULE_CallWEP( HMODULE16 hModule )
1467 FARPROC16 WEP = GetProcAddress16( hModule, "WEP" );
1468 if (!WEP) return FALSE;
1475 args[0] = WEP_FREE_DLL;
1476 WOWCallback16Ex( (DWORD)WEP, WCB16_PASCAL, sizeof(args), args, &dwRet );
1477 ret = LOWORD(dwRet);
1479 __EXCEPT(page_fault)
1481 WARN("Page fault\n");
1490 /**********************************************************************
1493 * Implementation of FreeModule16().
1495 static BOOL16 NE_FreeModule( HMODULE16 hModule, BOOL call_wep )
1497 HMODULE16 *hPrevModule;
1502 if (!(pModule = NE_GetPtr( hModule ))) return FALSE;
1503 hModule = pModule->self;
1505 TRACE("%04x count %d\n", hModule, pModule->count );
1507 if (((INT16)(--pModule->count)) > 0 ) return TRUE;
1508 else pModule->count = 0;
1510 if (pModule->flags & NE_FFLAGS_BUILTIN)
1511 return FALSE; /* Can't free built-in module */
1513 if (call_wep && !(pModule->flags & NE_FFLAGS_WIN32))
1515 /* Free the objects owned by the DLL module */
1516 NE_CallUserSignalProc( hModule, USIG16_DLL_UNLOAD );
1518 if (pModule->flags & NE_FFLAGS_LIBMODULE)
1519 MODULE_CallWEP( hModule );
1521 call_wep = FALSE; /* We are freeing a task -> no more WEPs */
1525 /* Clear magic number just in case */
1527 pModule->magic = pModule->self = 0;
1528 if (pModule->fd) CloseHandle( pModule->fd );
1530 /* Remove it from the linked list */
1532 hPrevModule = &hFirstModule;
1533 while (*hPrevModule && (*hPrevModule != hModule))
1535 hPrevModule = &(NE_GetPtr( *hPrevModule ))->next;
1537 if (*hPrevModule) *hPrevModule = pModule->next;
1539 /* Free the referenced modules */
1541 pModRef = (HMODULE16*)((char *)pModule + pModule->modref_table);
1542 for (i = 0; i < pModule->modref_count; i++, pModRef++)
1544 NE_FreeModule( *pModRef, call_wep );
1547 /* Free the module storage */
1549 GlobalFreeAll16( hModule );
1554 /**********************************************************************
1555 * FreeModule (KERNEL.46)
1557 BOOL16 WINAPI FreeModule16( HMODULE16 hModule )
1559 return NE_FreeModule( hModule, TRUE );
1563 /***********************************************************************
1564 * FreeLibrary (KERNEL.96)
1565 * FreeLibrary16 (KERNEL32.36)
1567 void WINAPI FreeLibrary16( HINSTANCE16 handle )
1569 TRACE("%04x\n", handle );
1570 FreeModule16( handle );
1574 /***********************************************************************
1575 * GetModuleHandle16 (KERNEL32.@)
1577 HMODULE16 WINAPI GetModuleHandle16( LPCSTR name )
1579 HMODULE16 hModule = hFirstModule;
1581 BYTE len, *name_table;
1582 char tmpstr[MAX_PATH];
1585 TRACE("(%s)\n", name);
1587 if (!HIWORD(name)) return GetExePtr(LOWORD(name));
1592 lstrcpynA(tmpstr, name, sizeof(tmpstr));
1594 /* If 'name' matches exactly the module name of a module:
1595 * Return its handle.
1597 for (hModule = hFirstModule; hModule ; hModule = pModule->next)
1599 pModule = NE_GetPtr( hModule );
1600 if (!pModule) break;
1601 if (pModule->flags & NE_FFLAGS_WIN32) continue;
1603 name_table = (BYTE *)pModule + pModule->name_table;
1604 if ((*name_table == len) && !strncmp(name, name_table+1, len))
1608 /* If uppercased 'name' matches exactly the module name of a module:
1611 for (s = tmpstr; *s; s++) *s = RtlUpperChar(*s);
1613 for (hModule = hFirstModule; hModule ; hModule = pModule->next)
1615 pModule = NE_GetPtr( hModule );
1616 if (!pModule) break;
1617 if (pModule->flags & NE_FFLAGS_WIN32) continue;
1619 name_table = (BYTE *)pModule + pModule->name_table;
1620 /* FIXME: the strncasecmp is WRONG. It should not be case insensitive,
1621 * but case sensitive! (Unfortunately Winword 6 and subdlls have
1622 * lowercased module names, but try to load uppercase DLLs, so this
1623 * 'i' compare is just a quickfix until the loader handles that
1624 * correctly. -MM 990705
1626 if ((*name_table == len) && !NE_strncasecmp(tmpstr, name_table+1, len))
1630 /* If the base filename of 'name' matches the base filename of the module
1631 * filename of some module (case-insensitive compare):
1632 * Return its handle.
1635 /* basename: search backwards in passed name to \ / or : */
1636 s = tmpstr + strlen(tmpstr);
1639 if (s[-1]=='/' || s[-1]=='\\' || s[-1]==':')
1644 /* search this in loaded filename list */
1645 for (hModule = hFirstModule; hModule ; hModule = pModule->next)
1650 pModule = NE_GetPtr( hModule );
1651 if (!pModule) break;
1652 if (!pModule->fileinfo) continue;
1653 if (pModule->flags & NE_FFLAGS_WIN32) continue;
1655 ofs = (OFSTRUCT*)((BYTE *)pModule + pModule->fileinfo);
1656 loadedfn = ((char*)ofs->szPathName) + strlen(ofs->szPathName);
1657 /* basename: search backwards in pathname to \ / or : */
1658 while (loadedfn > (char*)ofs->szPathName)
1660 if (loadedfn[-1]=='/' || loadedfn[-1]=='\\' || loadedfn[-1]==':')
1664 /* case insensitive compare ... */
1665 if (!NE_strcasecmp(loadedfn, s))
1672 /**********************************************************************
1673 * GetModuleName (KERNEL.27)
1675 BOOL16 WINAPI GetModuleName16( HINSTANCE16 hinst, LPSTR buf, INT16 count )
1680 if (!(pModule = NE_GetPtr( hinst ))) return FALSE;
1681 p = (BYTE *)pModule + pModule->name_table;
1682 if (count > *p) count = *p + 1;
1685 memcpy( buf, p + 1, count - 1 );
1686 buf[count-1] = '\0';
1692 /**********************************************************************
1693 * GetModuleFileName (KERNEL.49)
1695 * Comment: see GetModuleFileNameA
1697 * Even if invoked by second instance of a program,
1698 * it still returns path of first one.
1700 INT16 WINAPI GetModuleFileName16( HINSTANCE16 hModule, LPSTR lpFileName,
1705 /* Win95 does not query hModule if set to 0 !
1706 * Is this wrong or maybe Win3.1 only ? */
1707 if (!hModule) hModule = GetCurrentTask();
1709 if (!(pModule = NE_GetPtr( hModule ))) return 0;
1710 lstrcpynA( lpFileName, NE_MODULE_NAME(pModule), nSize );
1711 if (pModule->expected_version >= 0x400)
1712 GetLongPathNameA(NE_MODULE_NAME(pModule), lpFileName, nSize);
1713 TRACE("%04x -> '%s'\n", hModule, lpFileName );
1714 return strlen(lpFileName);
1718 /**********************************************************************
1719 * GetModuleUsage (KERNEL.48)
1721 INT16 WINAPI GetModuleUsage16( HINSTANCE16 hModule )
1723 NE_MODULE *pModule = NE_GetPtr( hModule );
1724 return pModule ? pModule->count : 0;
1728 /**********************************************************************
1729 * GetExpWinVer (KERNEL.167)
1731 WORD WINAPI GetExpWinVer16( HMODULE16 hModule )
1733 NE_MODULE *pModule = NE_GetPtr( hModule );
1734 if ( !pModule ) return 0;
1737 * For built-in modules, fake the expected version the module should
1738 * have according to the Windows version emulated by Wine
1740 if ( !pModule->expected_version )
1742 OSVERSIONINFOA versionInfo;
1743 versionInfo.dwOSVersionInfoSize = sizeof(versionInfo);
1745 if ( GetVersionExA( &versionInfo ) )
1746 pModule->expected_version =
1747 (versionInfo.dwMajorVersion & 0xff) << 8
1748 | (versionInfo.dwMinorVersion & 0xff);
1751 return pModule->expected_version;
1755 /***********************************************************************
1756 * WinExec (KERNEL.166)
1758 HINSTANCE16 WINAPI WinExec16( LPCSTR lpCmdLine, UINT16 nCmdShow )
1760 LPCSTR p, args = NULL;
1761 LPCSTR name_beg, name_end;
1762 LPSTR name, cmdline;
1765 char buffer[MAX_PATH];
1767 if (*lpCmdLine == '"') /* has to be only one and only at beginning ! */
1769 name_beg = lpCmdLine+1;
1770 p = strchr ( lpCmdLine+1, '"' );
1774 args = strchr ( p, ' ' );
1776 else /* yes, even valid with trailing '"' missing */
1777 name_end = lpCmdLine+strlen(lpCmdLine);
1781 name_beg = lpCmdLine;
1782 args = strchr( lpCmdLine, ' ' );
1783 name_end = args ? args : lpCmdLine+strlen(lpCmdLine);
1786 if ((name_beg == lpCmdLine) && (!args))
1787 { /* just use the original cmdline string as file name */
1788 name = (LPSTR)lpCmdLine;
1792 if (!(name = HeapAlloc( GetProcessHeap(), 0, name_end - name_beg + 1 )))
1793 return ERROR_NOT_ENOUGH_MEMORY;
1794 memcpy( name, name_beg, name_end - name_beg );
1795 name[name_end - name_beg] = '\0';
1801 arglen = strlen(args);
1802 cmdline = HeapAlloc( GetProcessHeap(), 0, 2 + arglen );
1803 cmdline[0] = (BYTE)arglen;
1804 strcpy( cmdline + 1, args );
1808 cmdline = HeapAlloc( GetProcessHeap(), 0, 2 );
1809 cmdline[0] = cmdline[1] = 0;
1812 TRACE("name: '%s', cmdline: '%.*s'\n", name, cmdline[0], &cmdline[1]);
1814 if (SearchPathA( NULL, name, ".exe", sizeof(buffer), buffer, NULL ))
1816 LOADPARAMS16 params;
1819 showCmd[1] = nCmdShow;
1821 params.hEnvironment = 0;
1822 params.cmdLine = MapLS( cmdline );
1823 params.showCmd = MapLS( showCmd );
1824 params.reserved = 0;
1826 ret = LoadModule16( buffer, ¶ms );
1827 UnMapLS( params.cmdLine );
1828 UnMapLS( params.showCmd );
1830 else ret = GetLastError();
1832 HeapFree( GetProcessHeap(), 0, cmdline );
1833 if (name != lpCmdLine) HeapFree( GetProcessHeap(), 0, name );
1835 if (ret == 21) /* 32-bit module */
1838 ReleaseThunkLock( &count );
1839 ret = LOWORD( WinExec( lpCmdLine, nCmdShow ) );
1840 RestoreThunkLock( count );
1845 /***********************************************************************
1846 * GetProcAddress (KERNEL.50)
1848 FARPROC16 WINAPI GetProcAddress16( HMODULE16 hModule, LPCSTR name )
1853 if (!hModule) hModule = GetCurrentTask();
1854 hModule = GetExePtr( hModule );
1856 if (HIWORD(name) != 0)
1858 ordinal = NE_GetOrdinal( hModule, name );
1859 TRACE("%04x '%s'\n", hModule, name );
1863 ordinal = LOWORD(name);
1864 TRACE("%04x %04x\n", hModule, ordinal );
1866 if (!ordinal) return (FARPROC16)0;
1868 ret = NE_GetEntryPoint( hModule, ordinal );
1870 TRACE("returning %08x\n", (UINT)ret );
1875 /***************************************************************************
1876 * HasGPHandler (KERNEL.338)
1878 SEGPTR WINAPI HasGPHandler16( SEGPTR address )
1883 GPHANDLERDEF *gpHandler;
1885 if ( (hModule = FarGetOwner16( SELECTOROF(address) )) != 0
1886 && (gpOrdinal = NE_GetOrdinal( hModule, "__GP" )) != 0
1887 && (gpPtr = (SEGPTR)NE_GetEntryPointEx( hModule, gpOrdinal, FALSE )) != 0
1888 && !IsBadReadPtr16( gpPtr, sizeof(GPHANDLERDEF) )
1889 && (gpHandler = MapSL( gpPtr )) != NULL )
1891 while (gpHandler->selector)
1893 if ( SELECTOROF(address) == gpHandler->selector
1894 && OFFSETOF(address) >= gpHandler->rangeStart
1895 && OFFSETOF(address) < gpHandler->rangeEnd )
1896 return MAKESEGPTR( gpHandler->selector, gpHandler->handler );
1905 /**********************************************************************
1906 * GetModuleHandle (KERNEL.47)
1908 * Find a module from a module name.
1910 * NOTE: The current implementation works the same way the Windows 95 one
1911 * does. Do not try to 'fix' it, fix the callers.
1912 * + It does not do ANY extension handling (except that strange .EXE bit)!
1913 * + It does not care about paths, just about basenames. (same as Windows)
1917 * the win16 module handle if found
1919 * HIWORD (undocumented, see "Undocumented Windows", chapter 5):
1920 * Always hFirstModule
1922 DWORD WINAPI WIN16_GetModuleHandle( SEGPTR name )
1924 if (HIWORD(name) == 0)
1925 return MAKELONG(GetExePtr( (HINSTANCE16)name), hFirstModule );
1926 return MAKELONG(GetModuleHandle16( MapSL(name)), hFirstModule );
1929 /**********************************************************************
1930 * NE_GetModuleByFilename
1932 static HMODULE16 NE_GetModuleByFilename( LPCSTR name )
1936 BYTE len, *name_table;
1937 char tmpstr[MAX_PATH];
1940 lstrcpynA(tmpstr, name, sizeof(tmpstr));
1942 /* If the base filename of 'name' matches the base filename of the module
1943 * filename of some module (case-insensitive compare):
1944 * Return its handle.
1947 /* basename: search backwards in passed name to \ / or : */
1948 s = tmpstr + strlen(tmpstr);
1951 if (s[-1]=='/' || s[-1]=='\\' || s[-1]==':')
1956 /* search this in loaded filename list */
1957 for (hModule = hFirstModule; hModule ; hModule = pModule->next)
1962 pModule = NE_GetPtr( hModule );
1963 if (!pModule) break;
1964 if (!pModule->fileinfo) continue;
1965 if (pModule->flags & NE_FFLAGS_WIN32) continue;
1967 ofs = (OFSTRUCT*)((BYTE *)pModule + pModule->fileinfo);
1968 loadedfn = ((char*)ofs->szPathName) + strlen(ofs->szPathName);
1969 /* basename: search backwards in pathname to \ / or : */
1970 while (loadedfn > (char*)ofs->szPathName)
1972 if (loadedfn[-1]=='/' || loadedfn[-1]=='\\' || loadedfn[-1]==':')
1976 /* case insensitive compare ... */
1977 if (!NE_strcasecmp(loadedfn, s))
1980 /* If basename (without ext) matches the module name of a module:
1981 * Return its handle.
1984 if ( (p = strrchr( s, '.' )) != NULL ) *p = '\0';
1987 for (hModule = hFirstModule; hModule ; hModule = pModule->next)
1989 pModule = NE_GetPtr( hModule );
1990 if (!pModule) break;
1991 if (pModule->flags & NE_FFLAGS_WIN32) continue;
1993 name_table = (BYTE *)pModule + pModule->name_table;
1994 if ((*name_table == len) && !NE_strncasecmp(s, name_table+1, len))
2001 /***********************************************************************
2002 * GetProcAddress16 (KERNEL32.37)
2003 * Get procaddress in 16bit module from win32... (kernel32 undoc. ordinal func)
2005 FARPROC16 WINAPI WIN32_GetProcAddress16( HMODULE hModule, LPCSTR name )
2007 if (!hModule) return 0;
2008 if (HIWORD(hModule))
2010 WARN("hModule is Win32 handle (%p)\n", hModule );
2013 return GetProcAddress16( LOWORD(hModule), name );
2016 /**********************************************************************
2017 * ModuleFirst (TOOLHELP.59)
2019 BOOL16 WINAPI ModuleFirst16( MODULEENTRY *lpme )
2021 lpme->wNext = hFirstModule;
2022 return ModuleNext16( lpme );
2026 /**********************************************************************
2027 * ModuleNext (TOOLHELP.60)
2029 BOOL16 WINAPI ModuleNext16( MODULEENTRY *lpme )
2034 if (!lpme->wNext) return FALSE;
2035 if (!(pModule = NE_GetPtr( lpme->wNext ))) return FALSE;
2036 name = (char *)pModule + pModule->name_table;
2037 memcpy( lpme->szModule, name + 1, min(*name, MAX_MODULE_NAME) );
2038 lpme->szModule[min(*name, MAX_MODULE_NAME)] = '\0';
2039 lpme->hModule = lpme->wNext;
2040 lpme->wcUsage = pModule->count;
2041 lstrcpynA( lpme->szExePath, NE_MODULE_NAME(pModule), sizeof(lpme->szExePath) );
2042 lpme->wNext = pModule->next;
2047 /**********************************************************************
2048 * ModuleFindName (TOOLHELP.61)
2050 BOOL16 WINAPI ModuleFindName16( MODULEENTRY *lpme, LPCSTR name )
2052 lpme->wNext = GetModuleHandle16( name );
2053 return ModuleNext16( lpme );
2057 /**********************************************************************
2058 * ModuleFindHandle (TOOLHELP.62)
2060 BOOL16 WINAPI ModuleFindHandle16( MODULEENTRY *lpme, HMODULE16 hModule )
2062 hModule = GetExePtr( hModule );
2063 lpme->wNext = hModule;
2064 return ModuleNext16( lpme );
2068 /***************************************************************************
2069 * IsRomModule (KERNEL.323)
2071 BOOL16 WINAPI IsRomModule16( HMODULE16 unused )
2076 /***************************************************************************
2077 * IsRomFile (KERNEL.326)
2079 BOOL16 WINAPI IsRomFile16( HFILE16 unused )
2084 /***********************************************************************
2085 * create_dummy_module
2087 * Create a dummy NE module for Win32 or Winelib.
2089 static HMODULE16 create_dummy_module( HMODULE module32 )
2093 SEGTABLEENTRY *pSegment;
2096 const char* basename;
2099 char filename[MAX_PATH];
2100 IMAGE_NT_HEADERS *nt = RtlImageNtHeader( module32 );
2102 if (!nt) return (HMODULE16)11; /* invalid exe */
2104 /* Extract base filename */
2105 len = GetModuleFileNameA( module32, filename, sizeof(filename) );
2106 if (!len || len >= sizeof(filename)) return (HMODULE16)11; /* invalid exe */
2107 basename = strrchr(filename, '\\');
2108 if (!basename) basename = filename;
2110 len = strlen(basename);
2111 if ((s = strchr(basename, '.'))) len = s - basename;
2113 /* Allocate module */
2114 of_size = sizeof(OFSTRUCT) - sizeof(ofs->szPathName)
2115 + strlen(filename) + 1;
2116 size = sizeof(NE_MODULE) +
2117 /* loaded file info */
2118 ((of_size + 3) & ~3) +
2119 /* segment table: DS,CS */
2120 2 * sizeof(SEGTABLEENTRY) +
2123 /* several empty tables */
2126 hModule = GlobalAlloc16( GMEM_MOVEABLE | GMEM_ZEROINIT, size );
2127 if (!hModule) return (HMODULE16)11; /* invalid exe */
2129 FarSetOwner16( hModule, hModule );
2130 pModule = (NE_MODULE *)GlobalLock16( hModule );
2132 /* Set all used entries */
2133 pModule->magic = IMAGE_OS2_SIGNATURE;
2136 pModule->flags = NE_FFLAGS_WIN32;
2137 pModule->dgroup = 0;
2140 pModule->heap_size = 0;
2141 pModule->stack_size = 0;
2142 pModule->seg_count = 2;
2143 pModule->modref_count = 0;
2144 pModule->nrname_size = 0;
2145 pModule->fileinfo = sizeof(NE_MODULE);
2146 pModule->os_flags = NE_OSFLAGS_WINDOWS;
2147 pModule->self = hModule;
2148 pModule->module32 = module32;
2150 /* Set version and flags */
2151 pModule->expected_version = ((nt->OptionalHeader.MajorSubsystemVersion & 0xff) << 8 ) |
2152 (nt->OptionalHeader.MinorSubsystemVersion & 0xff);
2153 if (nt->FileHeader.Characteristics & IMAGE_FILE_DLL)
2154 pModule->flags |= NE_FFLAGS_LIBMODULE | NE_FFLAGS_SINGLEDATA;
2156 /* Set loaded file information */
2157 ofs = (OFSTRUCT *)(pModule + 1);
2158 memset( ofs, 0, of_size );
2159 ofs->cBytes = of_size < 256 ? of_size : 255; /* FIXME */
2160 strcpy( ofs->szPathName, filename );
2162 pSegment = (SEGTABLEENTRY*)((char*)(pModule + 1) + ((of_size + 3) & ~3));
2163 pModule->seg_table = (int)pSegment - (int)pModule;
2166 pSegment->flags = NE_SEGFLAGS_DATA;
2167 pSegment->minsize = 0x1000;
2170 pSegment->flags = 0;
2174 pStr = (char *)pSegment;
2175 pModule->name_table = (int)pStr - (int)pModule;
2178 lstrcpynA( pStr+1, basename, len+1 );
2181 /* All tables zero terminated */
2182 pModule->res_table = pModule->import_table = pModule->entry_table = (int)pStr - (int)pModule;
2184 NE_RegisterModule( pModule );
2185 LoadLibraryA( filename ); /* increment the ref count of the 32-bit module */
2189 /***********************************************************************
2190 * PrivateLoadLibrary (KERNEL32.@)
2192 * FIXME: rough guesswork, don't know what "Private" means
2194 HINSTANCE16 WINAPI PrivateLoadLibrary(LPCSTR libname)
2196 return LoadLibrary16(libname);
2199 /***********************************************************************
2200 * PrivateFreeLibrary (KERNEL32.@)
2202 * FIXME: rough guesswork, don't know what "Private" means
2204 void WINAPI PrivateFreeLibrary(HINSTANCE16 handle)
2206 FreeLibrary16(handle);
2209 /***********************************************************************
2210 * LoadLibrary32 (KERNEL.452)
2211 * LoadSystemLibrary32 (KERNEL.482)
2213 HMODULE WINAPI LoadLibrary32_16( LPCSTR libname )
2218 ReleaseThunkLock( &count );
2219 hModule = LoadLibraryA( libname );
2220 RestoreThunkLock( count );
2224 /***************************************************************************
2225 * MapHModuleLS (KERNEL32.@)
2227 HMODULE16 WINAPI MapHModuleLS(HMODULE hmod)
2233 return TASK_GetCurrent()->hInstance;
2235 return LOWORD(hmod); /* we already have a 16 bit module handle */
2236 pModule = (NE_MODULE*)GlobalLock16(hFirstModule);
2238 if (pModule->module32 == hmod)
2239 return pModule->self;
2240 pModule = (NE_MODULE*)GlobalLock16(pModule->next);
2242 if ((ret = create_dummy_module( hmod )) < 32)
2250 /***************************************************************************
2251 * MapHModuleSL (KERNEL32.@)
2253 HMODULE WINAPI MapHModuleSL(HMODULE16 hmod)
2258 TDB *pTask = TASK_GetCurrent();
2259 hmod = pTask->hModule;
2261 pModule = (NE_MODULE*)GlobalLock16(hmod);
2262 if ((pModule->magic!=IMAGE_OS2_SIGNATURE) || !(pModule->flags & NE_FFLAGS_WIN32))
2264 return pModule->module32;
2267 /***************************************************************************
2268 * MapHInstLS (KERNEL32.@)
2269 * MapHInstLS (KERNEL.472)
2271 void MapHInstLS( CONTEXT86 *context )
2273 context->Eax = MapHModuleLS( (HMODULE)context->Eax );
2276 /***************************************************************************
2277 * MapHInstSL (KERNEL32.@)
2278 * MapHInstSL (KERNEL.473)
2280 void MapHInstSL( CONTEXT86 *context )
2282 context->Eax = (DWORD)MapHModuleSL( context->Eax );
2285 /***************************************************************************
2286 * MapHInstLS_PN (KERNEL32.@)
2288 void MapHInstLS_PN( CONTEXT86 *context )
2290 if (context->Eax) context->Eax = MapHModuleLS( (HMODULE)context->Eax );
2293 /***************************************************************************
2294 * MapHInstSL_PN (KERNEL32.@)
2296 void MapHInstSL_PN( CONTEXT86 *context )
2298 if (context->Eax) context->Eax = (DWORD)MapHModuleSL( context->Eax );