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"
36 #include "wine/winbase16.h"
42 #include "kernel_private.h"
43 #include "kernel16_private.h"
44 #include "wine/exception.h"
45 #include "wine/debug.h"
47 WINE_DEFAULT_DEBUG_CHANNEL(module);
48 WINE_DECLARE_DEBUG_CHANNEL(loaddll);
51 typedef struct _GPHANDLERDEF
63 struct ne_segment_table_entry_s
65 WORD seg_data_offset; /* Sector offset of segment data */
66 WORD seg_data_length; /* Length of segment data */
67 WORD seg_flags; /* Flags associated with this segment */
68 WORD min_alloc; /* Minimum allocation size for this */
71 #define hFirstModule (pThhook->hExeHead)
75 const IMAGE_DOS_HEADER *header; /* module headers */
76 const char *file_name; /* module file name */
79 /* Table of all built-in DLLs */
83 static struct builtin_dll builtin_dlls[MAX_DLLS];
85 static HINSTANCE16 NE_LoadModule( LPCSTR name, BOOL lib_only );
86 static BOOL16 NE_FreeModule( HMODULE16 hModule, BOOL call_wep );
88 static HINSTANCE16 MODULE_LoadModule16( LPCSTR libname, BOOL implicit, BOOL lib_only );
90 static HMODULE16 NE_GetModuleByFilename( LPCSTR name );
93 static WINE_EXCEPTION_FILTER(page_fault)
95 if (GetExceptionCode() == EXCEPTION_ACCESS_VIOLATION ||
96 GetExceptionCode() == EXCEPTION_PRIV_INSTRUCTION)
97 return EXCEPTION_EXECUTE_HANDLER;
98 return EXCEPTION_CONTINUE_SEARCH;
102 /* patch all the flat cs references of the code segment if necessary */
103 inline static void patch_code_segment( NE_MODULE *pModule )
107 SEGTABLEENTRY *pSeg = NE_SEG_TABLE( pModule );
109 for (i = 0; i < pModule->ne_cseg; i++, pSeg++)
111 if (!(pSeg->flags & NE_SEGFLAGS_DATA)) /* found the code segment */
113 CALLFROM16 *call = GlobalLock16( pSeg->hSeg );
114 if (call->flatcs == wine_get_cs()) return; /* nothing to patch */
115 while (call->pushl == 0x68)
117 call->flatcs = wine_get_cs();
126 /***********************************************************************
129 * locale-independent case conversion for module lookups
131 static int NE_strcasecmp( const char *str1, const char *str2 )
134 for ( ; ; str1++, str2++)
135 if ((ret = RtlUpperChar(*str1) - RtlUpperChar(*str2)) || !*str1) break;
140 /***********************************************************************
143 * locale-independent case conversion for module lookups
145 static int NE_strncasecmp( const char *str1, const char *str2, int len )
148 for ( ; len > 0; len--, str1++, str2++)
149 if ((ret = RtlUpperChar(*str1) - RtlUpperChar(*str2)) || !*str1) break;
154 /***********************************************************************
157 * Find a descriptor in the list
159 static const IMAGE_DOS_HEADER *find_dll_descr( const char *dllname, const char **file_name )
162 const IMAGE_DOS_HEADER *mz_header;
163 const IMAGE_OS2_HEADER *ne_header;
166 for (i = 0; i < MAX_DLLS; i++)
168 mz_header = builtin_dlls[i].header;
171 ne_header = (const IMAGE_OS2_HEADER *)((const char *)mz_header + mz_header->e_lfanew);
172 name_table = (BYTE *)ne_header + ne_header->ne_restab;
174 /* check the dll file name */
175 if (!NE_strcasecmp( builtin_dlls[i].file_name, dllname ) ||
176 /* check the dll module name (without extension) */
177 (!NE_strncasecmp( dllname, name_table+1, *name_table ) &&
178 !strcmp( dllname + *name_table, ".dll" )))
180 *file_name = builtin_dlls[i].file_name;
181 return builtin_dlls[i].header;
189 /***********************************************************************
190 * __wine_dll_register_16 (KERNEL32.@)
192 * Register a built-in DLL descriptor.
194 void __wine_dll_register_16( const IMAGE_DOS_HEADER *header, const char *file_name )
198 for (i = 0; i < MAX_DLLS; i++)
200 if (builtin_dlls[i].header) continue;
201 builtin_dlls[i].header = header;
202 builtin_dlls[i].file_name = file_name;
205 assert( i < MAX_DLLS );
209 /***********************************************************************
210 * __wine_dll_unregister_16 (KERNEL32.@)
212 * Unregister a built-in DLL descriptor.
214 void __wine_dll_unregister_16( const IMAGE_DOS_HEADER *header )
218 for (i = 0; i < MAX_DLLS; i++)
220 if (builtin_dlls[i].header != header) continue;
221 builtin_dlls[i].header = NULL;
227 /***********************************************************************
230 NE_MODULE *NE_GetPtr( HMODULE16 hModule )
232 return (NE_MODULE *)GlobalLock16( GetExePtr(hModule) );
236 /**********************************************************************
239 static void NE_RegisterModule( NE_MODULE *pModule )
241 pModule->next = hFirstModule;
242 hFirstModule = pModule->self;
246 /***********************************************************************
249 void NE_DumpModule( HMODULE16 hModule )
259 if (!(pModule = NE_GetPtr( hModule )))
261 MESSAGE( "**** %04x is not a module handle\n", hModule );
265 /* Dump the module info */
267 DPRINTF( "Module %04x:\n", hModule );
268 DPRINTF( "count=%d flags=%04x heap=%d stack=%d\n",
269 pModule->count, pModule->ne_flags,
270 pModule->ne_heap, pModule->ne_stack );
271 DPRINTF( "cs:ip=%04x:%04x ss:sp=%04x:%04x ds=%04x nb seg=%d modrefs=%d\n",
272 SELECTOROF(pModule->ne_csip), OFFSETOF(pModule->ne_csip),
273 SELECTOROF(pModule->ne_sssp), OFFSETOF(pModule->ne_sssp),
274 pModule->ne_autodata, pModule->ne_cseg, pModule->ne_cmod );
275 DPRINTF( "os_flags=%d swap_area=%d version=%04x\n",
276 pModule->ne_exetyp, pModule->ne_swaparea, pModule->ne_expver );
277 if (pModule->ne_flags & NE_FFLAGS_WIN32)
278 DPRINTF( "PE module=%p\n", pModule->module32 );
280 /* Dump the file info */
282 DPRINTF( "Filename: '%s'\n", NE_MODULE_NAME(pModule) );
284 /* Dump the segment table */
286 DPRINTF( "Segment table:\n" );
287 pSeg = NE_SEG_TABLE( pModule );
288 for (i = 0; i < pModule->ne_cseg; i++, pSeg++)
289 DPRINTF( "%02x: pos=%d size=%d flags=%04x minsize=%d hSeg=%04x\n",
290 i + 1, pSeg->filepos, pSeg->size, pSeg->flags,
291 pSeg->minsize, pSeg->hSeg );
293 /* Dump the resource table */
295 DPRINTF( "Resource table:\n" );
296 if (pModule->ne_rsrctab)
298 pword = (WORD *)((BYTE *)pModule + pModule->ne_rsrctab);
299 DPRINTF( "Alignment: %d\n", *pword++ );
302 NE_TYPEINFO *ptr = (NE_TYPEINFO *)pword;
303 NE_NAMEINFO *pname = (NE_NAMEINFO *)(ptr + 1);
304 DPRINTF( "id=%04x count=%d\n", ptr->type_id, ptr->count );
305 for (i = 0; i < ptr->count; i++, pname++)
306 DPRINTF( "offset=%d len=%d id=%04x\n",
307 pname->offset, pname->length, pname->id );
308 pword = (WORD *)pname;
311 else DPRINTF( "None\n" );
313 /* Dump the resident name table */
315 DPRINTF( "Resident-name table:\n" );
316 pstr = (char *)pModule + pModule->ne_restab;
319 DPRINTF( "%*.*s: %d\n", *pstr, *pstr, pstr + 1,
320 *(WORD *)(pstr + *pstr + 1) );
321 pstr += *pstr + 1 + sizeof(WORD);
324 /* Dump the module reference table */
326 DPRINTF( "Module ref table:\n" );
327 if (pModule->ne_modtab)
329 pword = (WORD *)((BYTE *)pModule + pModule->ne_modtab);
330 for (i = 0; i < pModule->ne_cmod; i++, pword++)
333 GetModuleName16( *pword, name, sizeof(name) );
334 DPRINTF( "%d: %04x -> '%s'\n", i, *pword, name );
337 else DPRINTF( "None\n" );
339 /* Dump the entry table */
341 DPRINTF( "Entry table:\n" );
342 bundle = (ET_BUNDLE *)((BYTE *)pModule+pModule->ne_enttab);
344 entry = (ET_ENTRY *)((BYTE *)bundle+6);
345 DPRINTF( "Bundle %d-%d: %02x\n", bundle->first, bundle->last, entry->type);
346 ordinal = bundle->first;
347 while (ordinal < bundle->last)
349 if (entry->type == 0xff)
350 DPRINTF("%d: %02x:%04x (moveable)\n", ordinal++, entry->segnum, entry->offs);
352 DPRINTF("%d: %02x:%04x (fixed)\n", ordinal++, entry->segnum, entry->offs);
355 } while ( (bundle->next) && (bundle = ((ET_BUNDLE *)((BYTE *)pModule + bundle->next))) );
357 /* Dump the non-resident names table */
359 DPRINTF( "Non-resident names table:\n" );
360 if (pModule->nrname_handle)
362 pstr = (char *)GlobalLock16( pModule->nrname_handle );
365 DPRINTF( "%*.*s: %d\n", *pstr, *pstr, pstr + 1,
366 *(WORD *)(pstr + *pstr + 1) );
367 pstr += *pstr + 1 + sizeof(WORD);
374 /***********************************************************************
377 * Walk the module list and print the modules.
379 void NE_WalkModules(void)
381 HMODULE16 hModule = hFirstModule;
382 MESSAGE( "Module Flags Name\n" );
385 NE_MODULE *pModule = NE_GetPtr( hModule );
388 MESSAGE( "Bad module %04x in list\n", hModule );
391 MESSAGE( " %04x %04x %.*s\n", hModule, pModule->ne_flags,
392 *((char *)pModule + pModule->ne_restab),
393 (char *)pModule + pModule->ne_restab + 1 );
394 hModule = pModule->next;
399 /***********************************************************************
400 * NE_InitResourceHandler
402 * Fill in 'resloader' fields in the resource table.
404 static void NE_InitResourceHandler( HMODULE16 hModule )
406 static FARPROC16 proc;
408 NE_TYPEINFO *pTypeInfo;
411 if (!(pModule = NE_GetPtr( hModule )) || !pModule->ne_rsrctab) return;
413 TRACE("InitResourceHandler[%04x]\n", hModule );
415 if (!proc) proc = GetProcAddress16( GetModuleHandle16("KERNEL"), "DefResourceHandler" );
417 pTypeInfo = (NE_TYPEINFO *)((char *)pModule + pModule->ne_rsrctab + 2);
418 while(pTypeInfo->type_id)
420 memcpy_unaligned( &pTypeInfo->resloader, &proc, sizeof(FARPROC16) );
421 pTypeInfo = (NE_TYPEINFO *)((char*)(pTypeInfo + 1) + pTypeInfo->count * sizeof(NE_NAMEINFO));
426 /***********************************************************************
429 * Lookup the ordinal for a given name.
431 WORD NE_GetOrdinal( HMODULE16 hModule, const char *name )
433 unsigned char buffer[256], *cpnt;
437 if (!(pModule = NE_GetPtr( hModule ))) return 0;
438 if (pModule->ne_flags & NE_FFLAGS_WIN32) return 0;
440 TRACE("(%04x,'%s')\n", hModule, name );
442 /* First handle names of the form '#xxxx' */
444 if (name[0] == '#') return atoi( name + 1 );
446 /* Now copy and uppercase the string */
448 strcpy( buffer, name );
449 for (cpnt = buffer; *cpnt; cpnt++) *cpnt = RtlUpperChar(*cpnt);
452 /* First search the resident names */
454 cpnt = (char *)pModule + pModule->ne_restab;
456 /* Skip the first entry (module name) */
457 cpnt += *cpnt + 1 + sizeof(WORD);
460 if (((BYTE)*cpnt == len) && !memcmp( cpnt+1, buffer, len ))
463 memcpy( &ordinal, cpnt + *cpnt + 1, sizeof(ordinal) );
464 TRACE(" Found: ordinal=%d\n", ordinal );
467 cpnt += *cpnt + 1 + sizeof(WORD);
470 /* Now search the non-resident names table */
472 if (!pModule->nrname_handle) return 0; /* No non-resident table */
473 cpnt = (char *)GlobalLock16( pModule->nrname_handle );
475 /* Skip the first entry (module description string) */
476 cpnt += *cpnt + 1 + sizeof(WORD);
479 if (((BYTE)*cpnt == len) && !memcmp( cpnt+1, buffer, len ))
482 memcpy( &ordinal, cpnt + *cpnt + 1, sizeof(ordinal) );
483 TRACE(" Found: ordinal=%d\n", ordinal );
486 cpnt += *cpnt + 1 + sizeof(WORD);
492 /***********************************************************************
495 FARPROC16 WINAPI NE_GetEntryPoint( HMODULE16 hModule, WORD ordinal )
497 return NE_GetEntryPointEx( hModule, ordinal, TRUE );
500 /***********************************************************************
503 FARPROC16 NE_GetEntryPointEx( HMODULE16 hModule, WORD ordinal, BOOL16 snoop )
511 if (!(pModule = NE_GetPtr( hModule ))) return 0;
512 assert( !(pModule->ne_flags & NE_FFLAGS_WIN32) );
514 bundle = (ET_BUNDLE *)((BYTE *)pModule + pModule->ne_enttab);
515 while ((ordinal < bundle->first + 1) || (ordinal > bundle->last))
519 bundle = (ET_BUNDLE *)((BYTE *)pModule + bundle->next);
522 entry = (ET_ENTRY *)((BYTE *)bundle+6);
523 for (i=0; i < (ordinal - bundle->first - 1); i++)
527 memcpy( &offset, &entry->offs, sizeof(WORD) );
529 if (sel == 0xfe) sel = 0xffff; /* constant entry */
530 else sel = GlobalHandleToSel16(NE_SEG_TABLE(pModule)[sel-1].hSeg);
532 return (FARPROC16)MAKESEGPTR( sel, offset );
534 return (FARPROC16)MAKESEGPTR( sel, offset );
536 return (FARPROC16)SNOOP16_GetProcAddress16(hModule,ordinal,(FARPROC16)MAKESEGPTR( sel, offset ));
540 /***********************************************************************
541 * EntryAddrProc (KERNEL.667) Wine-specific export
543 * Return the entry point for a given ordinal.
545 FARPROC16 WINAPI EntryAddrProc16( HMODULE16 hModule, WORD ordinal )
547 FARPROC16 ret = NE_GetEntryPointEx( hModule, ordinal, TRUE );
548 CURRENT_STACK16->ecx = hModule; /* FIXME: might be incorrect value */
552 /***********************************************************************
555 * Change the value of an entry point. Use with caution!
556 * It can only change the offset value, not the selector.
558 BOOL16 NE_SetEntryPoint( HMODULE16 hModule, WORD ordinal, WORD offset )
565 if (!(pModule = NE_GetPtr( hModule ))) return FALSE;
566 assert( !(pModule->ne_flags & NE_FFLAGS_WIN32) );
568 bundle = (ET_BUNDLE *)((BYTE *)pModule + pModule->ne_enttab);
569 while ((ordinal < bundle->first + 1) || (ordinal > bundle->last))
571 bundle = (ET_BUNDLE *)((BYTE *)pModule + bundle->next);
572 if (!(bundle->next)) return 0;
575 entry = (ET_ENTRY *)((BYTE *)bundle+6);
576 for (i=0; i < (ordinal - bundle->first - 1); i++)
579 memcpy( &entry->offs, &offset, sizeof(WORD) );
584 /***********************************************************************
587 * Build the entry table bundle data from the on-disk format. Helper for build_module.
589 static void *build_bundle_data( NE_MODULE *pModule, void *dest, const BYTE *table )
591 ET_BUNDLE *oldbundle, *bundle = dest;
593 BYTE nr_entries, type;
595 memset(bundle, 0, sizeof(ET_BUNDLE)); /* in case no entry table exists */
596 entry = (ET_ENTRY *)((BYTE *)bundle+6);
598 while ((nr_entries = *table++))
600 if ((type = *table++))
602 bundle->last += nr_entries;
608 entry->flags = *table++;
609 table += sizeof(WORD);
610 entry->segnum = *table++;
611 entry->offs = *(WORD *)table;
612 table += sizeof(WORD);
621 entry->flags = *table++;
622 entry->segnum = type;
623 entry->offs = *(WORD *)table;
624 table += sizeof(WORD);
631 if (bundle->first == bundle->last)
633 bundle->first += nr_entries;
634 bundle->last += nr_entries;
639 oldbundle->next = (char *)entry - (char *)pModule;
640 bundle = (ET_BUNDLE *)entry;
641 bundle->first = bundle->last = oldbundle->last + nr_entries;
643 entry = (ET_ENTRY*)(((BYTE*)entry)+sizeof(ET_BUNDLE));
651 /***********************************************************************
654 * Build the in-memory module from the on-disk data.
656 static HMODULE16 build_module( const void *mapping, SIZE_T mapping_size, LPCSTR path )
658 const IMAGE_DOS_HEADER *mz_header = mapping;
659 const IMAGE_OS2_HEADER *ne_header;
660 const struct ne_segment_table_entry_s *pSeg;
666 BYTE *buffer, *pData, *end;
669 if (mapping_size < sizeof(*mz_header)) return ERROR_BAD_FORMAT;
670 if (mz_header->e_magic != IMAGE_DOS_SIGNATURE) return ERROR_BAD_FORMAT;
671 ne_header = (const IMAGE_OS2_HEADER *)((const char *)mapping + mz_header->e_lfanew);
672 if (mz_header->e_lfanew + sizeof(*ne_header) > mapping_size) return ERROR_BAD_FORMAT;
673 if (ne_header->ne_magic == IMAGE_NT_SIGNATURE) return 21; /* win32 exe */
674 if (ne_header->ne_magic == IMAGE_OS2_SIGNATURE_LX)
676 MESSAGE("Sorry, %s is an OS/2 linear executable (LX) file!\n", path);
679 if (ne_header->ne_magic != IMAGE_OS2_SIGNATURE) return ERROR_BAD_FORMAT;
681 /* We now have a valid NE header */
683 /* check to be able to fall back to loading OS/2 programs as DOS
684 * FIXME: should this check be reversed in order to be less strict?
685 * (only fail for OS/2 ne_exetyp 0x01 here?) */
686 if ((ne_header->ne_exetyp != 0x02 /* Windows */)
687 && (ne_header->ne_exetyp != 0x04) /* Windows 386 */)
688 return ERROR_BAD_FORMAT;
690 size = sizeof(NE_MODULE) +
692 ne_header->ne_cseg * sizeof(SEGTABLEENTRY) +
694 ne_header->ne_restab - ne_header->ne_rsrctab +
695 /* resident names table */
696 ne_header->ne_modtab - ne_header->ne_restab +
697 /* module ref table */
698 ne_header->ne_cmod * sizeof(WORD) +
699 /* imported names table */
700 ne_header->ne_enttab - ne_header->ne_imptab +
701 /* entry table length */
702 ne_header->ne_cbenttab +
703 /* entry table extra conversion space */
705 2 * (ne_header->ne_cbenttab - ne_header->ne_cmovent*6) +
706 /* loaded file info */
707 sizeof(OFSTRUCT) - sizeof(ofs->szPathName) + strlen(path) + 1;
709 hModule = GlobalAlloc16( GMEM_FIXED | GMEM_ZEROINIT, size );
710 if (!hModule) return ERROR_BAD_FORMAT;
712 FarSetOwner16( hModule, hModule );
713 pModule = (NE_MODULE *)GlobalLock16( hModule );
714 memcpy( pModule, ne_header, sizeof(*ne_header) );
716 /* check programs for default minimal stack size */
717 if (!(pModule->ne_flags & NE_FFLAGS_LIBMODULE) && (pModule->ne_stack < 0x1400))
718 pModule->ne_stack = 0x1400;
720 pModule->self = hModule;
721 pModule->mapping = mapping;
722 pModule->mapping_size = mapping_size;
724 pData = (BYTE *)(pModule + 1);
726 /* Clear internal Wine flags in case they are set in the EXE file */
728 pModule->ne_flags &= ~(NE_FFLAGS_BUILTIN | NE_FFLAGS_WIN32);
730 /* Get the segment table */
732 pModule->ne_segtab = pData - (BYTE *)pModule;
733 if (!(pSeg = NE_GET_DATA( pModule, mz_header->e_lfanew + ne_header->ne_segtab,
734 ne_header->ne_cseg * sizeof(struct ne_segment_table_entry_s) )))
736 for (i = ne_header->ne_cseg; i > 0; i--, pSeg++)
738 memcpy( pData, pSeg, sizeof(*pSeg) );
739 pData += sizeof(SEGTABLEENTRY);
742 /* Get the resource table */
744 if (ne_header->ne_rsrctab < ne_header->ne_restab)
746 pModule->ne_rsrctab = pData - (BYTE *)pModule;
747 if (!NE_READ_DATA( pModule, pData, mz_header->e_lfanew + ne_header->ne_rsrctab,
748 ne_header->ne_restab - ne_header->ne_rsrctab )) goto failed;
749 pData += ne_header->ne_restab - ne_header->ne_rsrctab;
751 else pModule->ne_rsrctab = 0; /* No resource table */
753 /* Get the resident names table */
755 pModule->ne_restab = pData - (BYTE *)pModule;
756 if (!NE_READ_DATA( pModule, pData, mz_header->e_lfanew + ne_header->ne_restab,
757 ne_header->ne_modtab - ne_header->ne_restab )) goto failed;
758 pData += ne_header->ne_modtab - ne_header->ne_restab;
760 /* Get the module references table */
762 if (ne_header->ne_cmod > 0)
764 pModule->ne_modtab = pData - (BYTE *)pModule;
765 if (!NE_READ_DATA( pModule, pData, mz_header->e_lfanew + ne_header->ne_modtab,
766 ne_header->ne_cmod * sizeof(WORD) )) goto failed;
767 pData += ne_header->ne_cmod * sizeof(WORD);
769 else pModule->ne_modtab = 0; /* No module references */
771 /* Get the imported names table */
773 pModule->ne_imptab = pData - (BYTE *)pModule;
774 if (!NE_READ_DATA( pModule, pData, mz_header->e_lfanew + ne_header->ne_imptab,
775 ne_header->ne_enttab - ne_header->ne_imptab )) goto failed;
776 pData += ne_header->ne_enttab - ne_header->ne_imptab;
778 /* Load entry table, convert it to the optimized version used by Windows */
780 pModule->ne_enttab = pData - (BYTE *)pModule;
781 if (!(ptr = NE_GET_DATA( pModule, mz_header->e_lfanew + ne_header->ne_enttab,
782 ne_header->ne_cbenttab ))) goto failed;
783 end = build_bundle_data( pModule, pData, ptr );
785 pData += ne_header->ne_cbenttab + sizeof(ET_BUNDLE) +
786 2 * (ne_header->ne_cbenttab - ne_header->ne_cmovent*6);
790 FIXME( "not enough space for entry table for %s\n", debugstr_a(path) );
794 /* Store the filename information */
796 pModule->fileinfo = pData - (BYTE *)pModule;
797 ofs = (OFSTRUCT *)pData;
798 ofs->cBytes = sizeof(OFSTRUCT) - sizeof(ofs->szPathName) + strlen(path);
800 strcpy( ofs->szPathName, path );
801 pData += ofs->cBytes + 1;
802 assert( (BYTE *)pModule + size <= pData );
804 /* Get the non-resident names table */
806 if (ne_header->ne_cbnrestab)
808 pModule->nrname_handle = GlobalAlloc16( 0, ne_header->ne_cbnrestab );
809 if (!pModule->nrname_handle) goto failed;
810 FarSetOwner16( pModule->nrname_handle, hModule );
811 buffer = GlobalLock16( pModule->nrname_handle );
812 if (!NE_READ_DATA( pModule, buffer, ne_header->ne_nrestab, ne_header->ne_cbnrestab ))
814 GlobalFree16( pModule->nrname_handle );
818 else pModule->nrname_handle = 0;
820 /* Allocate a segment for the implicitly-loaded DLLs */
822 if (pModule->ne_cmod)
824 pModule->dlls_to_init = GlobalAlloc16( GMEM_ZEROINIT,
825 (pModule->ne_cmod+1)*sizeof(HMODULE16) );
826 if (!pModule->dlls_to_init)
828 if (pModule->nrname_handle) GlobalFree16( pModule->nrname_handle );
831 FarSetOwner16( pModule->dlls_to_init, hModule );
833 else pModule->dlls_to_init = 0;
835 NE_RegisterModule( pModule );
839 GlobalFree16( hModule );
840 return ERROR_BAD_FORMAT;
844 /***********************************************************************
847 * Load all DLLs implicitly linked to a module.
849 static BOOL NE_LoadDLLs( NE_MODULE *pModule )
852 WORD *pModRef = (WORD *)((char *)pModule + pModule->ne_modtab);
853 WORD *pDLLs = (WORD *)GlobalLock16( pModule->dlls_to_init );
855 for (i = 0; i < pModule->ne_cmod; i++, pModRef++)
857 char buffer[260], *p;
858 BYTE *pstr = (BYTE *)pModule + pModule->ne_imptab + *pModRef;
859 memcpy( buffer, pstr + 1, *pstr );
860 *(buffer + *pstr) = 0; /* terminate it */
862 TRACE("Loading '%s'\n", buffer );
863 if (!(*pModRef = GetModuleHandle16( buffer )))
865 /* If the DLL is not loaded yet, load it and store */
866 /* its handle in the list of DLLs to initialize. */
869 /* Append .DLL to name if no extension present */
870 if (!(p = strrchr( buffer, '.')) || strchr( p, '/' ) || strchr( p, '\\'))
871 strcat( buffer, ".DLL" );
873 if ((hDLL = MODULE_LoadModule16( buffer, TRUE, TRUE )) < 32)
875 /* FIXME: cleanup what was done */
877 MESSAGE( "Could not load '%s' required by '%.*s', error=%d\n",
878 buffer, *((BYTE*)pModule + pModule->ne_restab),
879 (char *)pModule + pModule->ne_restab + 1, hDLL );
882 *pModRef = GetExePtr( hDLL );
885 else /* Increment the reference count of the DLL */
887 NE_MODULE *pOldDLL = NE_GetPtr( *pModRef );
888 if (pOldDLL) pOldDLL->count++;
895 /**********************************************************************
898 * Load first instance of NE module from file.
900 * pModule must point to a module structure prepared by build_module.
901 * This routine must never be called twice on a module.
903 static HINSTANCE16 NE_DoLoadModule( NE_MODULE *pModule )
905 /* Allocate the segments for this module */
907 if (!NE_CreateAllSegments( pModule ))
908 return ERROR_NOT_ENOUGH_MEMORY; /* 8 */
910 /* Load the referenced DLLs */
912 if (!NE_LoadDLLs( pModule ))
913 return ERROR_FILE_NOT_FOUND; /* 2 */
915 /* Load the segments */
917 NE_LoadAllSegments( pModule );
919 /* Make sure the usage count is 1 on the first loading of */
920 /* the module, even if it contains circular DLL references */
924 return NE_GetInstance( pModule );
927 /**********************************************************************
930 * Load first instance of NE module. (Note: caller is responsible for
931 * ensuring the module isn't already loaded!)
933 * If the module turns out to be an executable module, only a
934 * handle to a module stub is returned; this needs to be initialized
935 * by calling NE_DoLoadModule later, in the context of the newly
938 * If lib_only is TRUE, however, the module is perforce treated
939 * like a DLL module, even if it is an executable module.
942 static HINSTANCE16 NE_LoadModule( LPCSTR name, BOOL lib_only )
946 HINSTANCE16 hInstance;
951 MEMORY_BASIC_INFORMATION info;
954 if ((hFile = OpenFile16( name, &ofs, OF_READ|OF_SHARE_DENY_WRITE )) == HFILE_ERROR16)
955 return ERROR_FILE_NOT_FOUND;
957 mapping = CreateFileMappingW( DosFileHandleToWin32Handle(hFile), NULL, PAGE_WRITECOPY, 0, 0, NULL );
959 if (!mapping) return ERROR_BAD_FORMAT;
961 ptr = MapViewOfFile( mapping, FILE_MAP_COPY, 0, 0, 0 );
962 CloseHandle( mapping );
963 if (!ptr) return ERROR_BAD_FORMAT;
965 VirtualQuery( ptr, &info, sizeof(info) );
966 hModule = build_module( ptr, info.RegionSize, ofs.szPathName );
970 UnmapViewOfFile( ptr );
974 SNOOP16_RegisterDLL( hModule, ofs.szPathName );
975 NE_InitResourceHandler( hModule );
977 pModule = NE_GetPtr( hModule );
979 if ( !lib_only && !( pModule->ne_flags & NE_FFLAGS_LIBMODULE ) )
982 hInstance = NE_DoLoadModule( pModule );
983 if ( hInstance < 32 )
986 NE_FreeModule( hModule, 0 );
993 /***********************************************************************
994 * NE_DoLoadBuiltinModule
996 * Load a built-in Win16 module. Helper function for NE_LoadBuiltinModule.
998 static HMODULE16 NE_DoLoadBuiltinModule( const IMAGE_DOS_HEADER *mz_header, const char *file_name,
1003 HINSTANCE16 hInstance;
1004 OSVERSIONINFOW versionInfo;
1005 const IMAGE_OS2_HEADER *ne_header;
1006 SIZE_T mapping_size = ~0UL; /* assume builtins don't contain invalid offsets... */
1008 ne_header = (const IMAGE_OS2_HEADER *)((const BYTE *)mz_header + mz_header->e_lfanew);
1009 hModule = build_module( mz_header, mapping_size, file_name );
1010 if (hModule < 32) return hModule;
1011 pModule = GlobalLock16( hModule );
1012 pModule->ne_flags |= NE_FFLAGS_BUILTIN;
1013 pModule->owner32 = owner32;
1015 /* fake the expected version the module should have according to the current Windows version */
1016 versionInfo.dwOSVersionInfoSize = sizeof(versionInfo);
1017 if (GetVersionExW( &versionInfo ))
1018 pModule->ne_expver = MAKEWORD( versionInfo.dwMinorVersion, versionInfo.dwMajorVersion );
1020 hInstance = NE_DoLoadModule( pModule );
1021 if (hInstance < 32) NE_FreeModule( hModule, 0 );
1023 NE_InitResourceHandler( hModule );
1025 if (pModule->ne_heap)
1027 SEGTABLEENTRY *pSeg = NE_SEG_TABLE( pModule ) + pModule->ne_autodata - 1;
1028 unsigned int size = pSeg->minsize + pModule->ne_heap;
1029 if (size > 0xfffe) size = 0xfffe;
1030 LocalInit16( GlobalHandleToSel16(pSeg->hSeg), pSeg->minsize, size );
1033 patch_code_segment( pModule );
1039 /**********************************************************************
1040 * MODULE_LoadModule16
1042 * Load a NE module in the order of the loadorder specification.
1043 * The caller is responsible that the module is not loaded already.
1046 static HINSTANCE16 MODULE_LoadModule16( LPCSTR libname, BOOL implicit, BOOL lib_only )
1048 HINSTANCE16 hinst = 2;
1052 const IMAGE_DOS_HEADER *descr = NULL;
1053 const char *file_name = NULL;
1054 char dllname[20], owner[20], *p;
1055 const char *basename;
1058 /* strip path information */
1061 if (basename[0] && basename[1] == ':') basename += 2; /* strip drive specification */
1062 if ((p = strrchr( basename, '\\' ))) basename = p + 1;
1063 if ((p = strrchr( basename, '/' ))) basename = p + 1;
1065 if (strlen(basename) < sizeof(dllname)-4)
1067 strcpy( dllname, basename );
1068 p = strrchr( dllname, '.' );
1069 if (!p) strcat( dllname, ".dll" );
1070 for (p = dllname; *p; p++) if (*p >= 'A' && *p <= 'Z') *p += 32;
1072 if (wine_dll_get_owner( dllname, owner, sizeof(owner), &owner_exists ) != -1)
1074 mod32 = LoadLibraryA( owner );
1077 if (!(descr = find_dll_descr( dllname, &file_name )))
1079 FreeLibrary( mod32 );
1082 /* loading the 32-bit library can have the side effect of loading the module */
1083 /* if so, simply incr the ref count and return the module */
1084 if ((hModule = GetModuleHandle16( libname )))
1086 TRACE( "module %s already loaded by owner\n", libname );
1087 pModule = NE_GetPtr( hModule );
1088 if (pModule) pModule->count++;
1089 FreeLibrary( mod32 );
1095 /* it's probably disabled by the load order config */
1096 WARN( "couldn't load owner %s for 16-bit dll %s\n", owner, dllname );
1097 return ERROR_FILE_NOT_FOUND;
1104 TRACE("Trying built-in '%s'\n", libname);
1105 hinst = NE_DoLoadBuiltinModule( descr, file_name, mod32 );
1106 if (hinst > 32) TRACE_(loaddll)("Loaded module %s : builtin\n", debugstr_a(file_name));
1110 TRACE("Trying native dll '%s'\n", libname);
1111 hinst = NE_LoadModule(libname, lib_only);
1112 if (hinst > 32) TRACE_(loaddll)("Loaded module %s : native\n", debugstr_a(libname));
1113 if (hinst == ERROR_FILE_NOT_FOUND && owner_exists) hinst = 21; /* win32 module */
1116 if (hinst > 32 && !implicit)
1118 hModule = GetModuleHandle16(libname);
1121 ERR("Serious trouble. Just loaded module '%s' (hinst=0x%04x), but can't get module handle. Filename too long ?\n",
1123 return ERROR_INVALID_HANDLE;
1126 pModule = NE_GetPtr(hModule);
1129 ERR("Serious trouble. Just loaded module '%s' (hinst=0x%04x), but can't get NE_MODULE pointer\n",
1131 return ERROR_INVALID_HANDLE;
1134 TRACE("Loaded module '%s' at 0x%04x.\n", libname, hinst);
1137 * Call initialization routines for all loaded DLLs. Note that
1138 * when we load implicitly linked DLLs this will be done by InitTask().
1140 if(pModule->ne_flags & NE_FFLAGS_LIBMODULE)
1142 NE_InitializeDLLs(hModule);
1143 NE_DllProcessAttach(hModule);
1146 return hinst; /* The last error that occurred */
1150 /**********************************************************************
1153 * Create the thread for a 16-bit module.
1155 static HINSTANCE16 NE_CreateThread( NE_MODULE *pModule, WORD cmdShow, LPCSTR cmdline )
1160 HINSTANCE16 instance = 0;
1162 if (!(hTask = TASK_SpawnTask( pModule, cmdShow, cmdline + 1, *cmdline, &hThread )))
1165 /* Post event to start the task */
1166 PostEvent16( hTask );
1168 /* Wait until we get the instance handle */
1171 DirectedYield16( hTask );
1172 if (!IsTask16( hTask )) /* thread has died */
1175 WaitForSingleObject( hThread, INFINITE );
1176 GetExitCodeThread( hThread, &exit_code );
1177 CloseHandle( hThread );
1180 if (!(pTask = GlobalLock16( hTask ))) break;
1181 instance = pTask->hInstance;
1182 GlobalUnlock16( hTask );
1183 } while (!instance);
1185 CloseHandle( hThread );
1190 /**********************************************************************
1191 * LoadModule (KERNEL.45)
1193 HINSTANCE16 WINAPI LoadModule16( LPCSTR name, LPVOID paramBlock )
1195 BOOL lib_only = !paramBlock || (paramBlock == (LPVOID)-1);
1196 LOADPARAMS16 *params;
1204 if ( (hModule = NE_GetModuleByFilename(name) ) != 0 )
1206 /* Special case: second instance of an already loaded NE module */
1208 if ( !( pModule = NE_GetPtr( hModule ) ) ) return ERROR_BAD_FORMAT;
1209 if ( pModule->module32 ) return (HINSTANCE16)21;
1211 /* Increment refcount */
1217 /* Main case: load first instance of NE module */
1219 if ( (hModule = MODULE_LoadModule16( name, FALSE, lib_only )) < 32 )
1222 if ( !(pModule = NE_GetPtr( hModule )) )
1223 return ERROR_BAD_FORMAT;
1226 /* If library module, we just retrieve the instance handle */
1228 if ( ( pModule->ne_flags & NE_FFLAGS_LIBMODULE ) || lib_only )
1229 return NE_GetInstance( pModule );
1232 * At this point, we need to create a new process.
1234 * pModule points either to an already loaded module, whose refcount
1235 * has already been incremented (to avoid having the module vanish
1236 * in the meantime), or else to a stub module which contains only header
1239 params = (LOADPARAMS16 *)paramBlock;
1240 cmdShow = ((WORD *)MapSL(params->showCmd))[1];
1241 cmdline = MapSL( params->cmdLine );
1242 return NE_CreateThread( pModule, cmdShow, cmdline );
1246 /**********************************************************************
1249 * Startup code for a new 16-bit task.
1251 DWORD NE_StartTask(void)
1253 TDB *pTask = TASK_GetCurrent();
1254 NE_MODULE *pModule = NE_GetPtr( pTask->hModule );
1255 HINSTANCE16 hInstance, hPrevInstance;
1256 SEGTABLEENTRY *pSegTable = NE_SEG_TABLE( pModule );
1259 if ( pModule->count > 0 )
1261 /* Second instance of an already loaded NE module */
1262 /* Note that the refcount was already incremented by the parent */
1264 hPrevInstance = NE_GetInstance( pModule );
1266 if ( pModule->ne_autodata )
1267 if ( NE_CreateSegment( pModule, pModule->ne_autodata ) )
1268 NE_LoadSegment( pModule, pModule->ne_autodata );
1270 hInstance = NE_GetInstance( pModule );
1271 TRACE("created second instance %04x[%d] of instance %04x.\n", hInstance, pModule->ne_autodata, hPrevInstance);
1276 /* Load first instance of NE module */
1278 pModule->ne_flags |= NE_FFLAGS_GUI; /* FIXME: is this necessary? */
1280 hInstance = NE_DoLoadModule( pModule );
1284 if ( hInstance >= 32 )
1288 /* Enter instance handles into task struct */
1290 pTask->hInstance = hInstance;
1291 pTask->hPrevInstance = hPrevInstance;
1293 /* Use DGROUP for 16-bit stack */
1295 if (!(sp = OFFSETOF(pModule->ne_sssp)))
1296 sp = pSegTable[SELECTOROF(pModule->ne_sssp)-1].minsize + pModule->ne_stack;
1298 sp -= sizeof(STACK16FRAME);
1299 NtCurrentTeb()->WOW32Reserved = (void *)MAKESEGPTR( GlobalHandleToSel16(hInstance), sp );
1301 /* Registers at initialization must be:
1303 * bx stack size in bytes
1304 * cx heap size in bytes
1305 * si previous app instance
1306 * di current app instance
1308 * es selector to the PSP
1309 * ds dgroup of the application
1311 * sp top of the stack
1313 memset( &context, 0, sizeof(context) );
1314 context.SegCs = GlobalHandleToSel16(pSegTable[SELECTOROF(pModule->ne_csip) - 1].hSeg);
1315 context.SegDs = GlobalHandleToSel16(pTask->hInstance);
1316 context.SegEs = pTask->hPDB;
1317 context.SegFs = wine_get_fs();
1318 context.SegGs = wine_get_gs();
1319 context.Eip = OFFSETOF(pModule->ne_csip);
1320 context.Ebx = pModule->ne_stack;
1321 context.Ecx = pModule->ne_heap;
1322 context.Edi = pTask->hInstance;
1323 context.Esi = pTask->hPrevInstance;
1325 /* Now call 16-bit entry point */
1327 TRACE("Starting main program: cs:ip=%04lx:%04lx ds=%04lx ss:sp=%04x:%04x\n",
1328 context.SegCs, context.Eip, context.SegDs,
1329 SELECTOROF(NtCurrentTeb()->WOW32Reserved),
1330 OFFSETOF(NtCurrentTeb()->WOW32Reserved) );
1332 WOWCallback16Ex( 0, WCB16_REGS, 0, NULL, (DWORD *)&context );
1333 ExitThread( LOWORD(context.Eax) );
1335 return hInstance; /* error code */
1338 /***********************************************************************
1339 * LoadLibrary (KERNEL.95)
1340 * LoadLibrary16 (KERNEL32.35)
1342 HINSTANCE16 WINAPI LoadLibrary16( LPCSTR libname )
1344 return LoadModule16(libname, (LPVOID)-1 );
1348 /**********************************************************************
1351 * Call a DLL's WEP, allowing it to shut down.
1352 * FIXME: we always pass the WEP WEP_FREE_DLL, never WEP_SYSTEM_EXIT
1354 static BOOL16 MODULE_CallWEP( HMODULE16 hModule )
1357 FARPROC16 WEP = GetProcAddress16( hModule, "WEP" );
1358 if (!WEP) return FALSE;
1365 args[0] = WEP_FREE_DLL;
1366 WOWCallback16Ex( (DWORD)WEP, WCB16_PASCAL, sizeof(args), args, &dwRet );
1367 ret = LOWORD(dwRet);
1369 __EXCEPT(page_fault)
1371 WARN("Page fault\n");
1380 /**********************************************************************
1383 * Implementation of FreeModule16().
1385 static BOOL16 NE_FreeModule( HMODULE16 hModule, BOOL call_wep )
1387 HMODULE16 *hPrevModule;
1392 if (!(pModule = NE_GetPtr( hModule ))) return FALSE;
1393 hModule = pModule->self;
1395 TRACE("%04x count %d\n", hModule, pModule->count );
1397 if (((INT16)(--pModule->count)) > 0 ) return TRUE;
1398 else pModule->count = 0;
1400 if (call_wep && !(pModule->ne_flags & NE_FFLAGS_WIN32))
1402 /* Free the objects owned by the DLL module */
1403 NE_CallUserSignalProc( hModule, USIG16_DLL_UNLOAD );
1405 if (pModule->ne_flags & NE_FFLAGS_LIBMODULE)
1406 MODULE_CallWEP( hModule );
1408 call_wep = FALSE; /* We are freeing a task -> no more WEPs */
1411 TRACE_(loaddll)("Unloaded module %s : %s\n", debugstr_a(NE_MODULE_NAME(pModule)),
1412 (pModule->ne_flags & NE_FFLAGS_BUILTIN) ? "builtin" : "native");
1414 /* Clear magic number just in case */
1416 pModule->ne_magic = pModule->self = 0;
1417 if (pModule->owner32) FreeLibrary( pModule->owner32 );
1418 else if (pModule->mapping) UnmapViewOfFile( (void *)pModule->mapping );
1420 /* Remove it from the linked list */
1422 hPrevModule = &hFirstModule;
1423 while (*hPrevModule && (*hPrevModule != hModule))
1425 hPrevModule = &(NE_GetPtr( *hPrevModule ))->next;
1427 if (*hPrevModule) *hPrevModule = pModule->next;
1429 /* Free the referenced modules */
1431 pModRef = (HMODULE16*)((char *)pModule + pModule->ne_modtab);
1432 for (i = 0; i < pModule->ne_cmod; i++, pModRef++)
1434 NE_FreeModule( *pModRef, call_wep );
1437 /* Free the module storage */
1439 GlobalFreeAll16( hModule );
1444 /**********************************************************************
1445 * FreeModule (KERNEL.46)
1447 BOOL16 WINAPI FreeModule16( HMODULE16 hModule )
1449 return NE_FreeModule( hModule, TRUE );
1453 /***********************************************************************
1454 * FreeLibrary (KERNEL.96)
1455 * FreeLibrary16 (KERNEL32.36)
1457 void WINAPI FreeLibrary16( HINSTANCE16 handle )
1459 TRACE("%04x\n", handle );
1460 FreeModule16( handle );
1464 /***********************************************************************
1465 * GetModuleHandle16 (KERNEL32.@)
1467 HMODULE16 WINAPI GetModuleHandle16( LPCSTR name )
1469 HMODULE16 hModule = hFirstModule;
1471 BYTE len, *name_table;
1472 char tmpstr[MAX_PATH];
1475 TRACE("(%s)\n", name);
1477 if (!HIWORD(name)) return GetExePtr(LOWORD(name));
1482 lstrcpynA(tmpstr, name, sizeof(tmpstr));
1484 /* If 'name' matches exactly the module name of a module:
1485 * Return its handle.
1487 for (hModule = hFirstModule; hModule ; hModule = pModule->next)
1489 pModule = NE_GetPtr( hModule );
1490 if (!pModule) break;
1491 if (pModule->ne_flags & NE_FFLAGS_WIN32) continue;
1493 name_table = (BYTE *)pModule + pModule->ne_restab;
1494 if ((*name_table == len) && !strncmp(name, name_table+1, len))
1498 /* If uppercased 'name' matches exactly the module name of a module:
1501 for (s = tmpstr; *s; s++) *s = RtlUpperChar(*s);
1503 for (hModule = hFirstModule; hModule ; hModule = pModule->next)
1505 pModule = NE_GetPtr( hModule );
1506 if (!pModule) break;
1507 if (pModule->ne_flags & NE_FFLAGS_WIN32) continue;
1509 name_table = (BYTE *)pModule + pModule->ne_restab;
1510 /* FIXME: the strncasecmp is WRONG. It should not be case insensitive,
1511 * but case sensitive! (Unfortunately Winword 6 and subdlls have
1512 * lowercased module names, but try to load uppercase DLLs, so this
1513 * 'i' compare is just a quickfix until the loader handles that
1514 * correctly. -MM 990705
1516 if ((*name_table == len) && !NE_strncasecmp(tmpstr, name_table+1, len))
1520 /* If the base filename of 'name' matches the base filename of the module
1521 * filename of some module (case-insensitive compare):
1522 * Return its handle.
1525 /* basename: search backwards in passed name to \ / or : */
1526 s = tmpstr + strlen(tmpstr);
1529 if (s[-1]=='/' || s[-1]=='\\' || s[-1]==':')
1534 /* search this in loaded filename list */
1535 for (hModule = hFirstModule; hModule ; hModule = pModule->next)
1540 pModule = NE_GetPtr( hModule );
1541 if (!pModule) break;
1542 if (!pModule->fileinfo) continue;
1543 if (pModule->ne_flags & NE_FFLAGS_WIN32) continue;
1545 ofs = (OFSTRUCT*)((BYTE *)pModule + pModule->fileinfo);
1546 loadedfn = ((char*)ofs->szPathName) + strlen(ofs->szPathName);
1547 /* basename: search backwards in pathname to \ / or : */
1548 while (loadedfn > (char*)ofs->szPathName)
1550 if (loadedfn[-1]=='/' || loadedfn[-1]=='\\' || loadedfn[-1]==':')
1554 /* case insensitive compare ... */
1555 if (!NE_strcasecmp(loadedfn, s))
1562 /**********************************************************************
1563 * GetModuleName (KERNEL.27)
1565 BOOL16 WINAPI GetModuleName16( HINSTANCE16 hinst, LPSTR buf, INT16 count )
1570 if (!(pModule = NE_GetPtr( hinst ))) return FALSE;
1571 p = (BYTE *)pModule + pModule->ne_restab;
1572 if (count > *p) count = *p + 1;
1575 memcpy( buf, p + 1, count - 1 );
1576 buf[count-1] = '\0';
1582 /**********************************************************************
1583 * GetModuleFileName (KERNEL.49)
1585 * Comment: see GetModuleFileNameA
1587 * Even if invoked by second instance of a program,
1588 * it still returns path of first one.
1590 INT16 WINAPI GetModuleFileName16( HINSTANCE16 hModule, LPSTR lpFileName,
1595 /* Win95 does not query hModule if set to 0 !
1596 * Is this wrong or maybe Win3.1 only ? */
1597 if (!hModule) hModule = GetCurrentTask();
1599 if (!(pModule = NE_GetPtr( hModule ))) return 0;
1600 lstrcpynA( lpFileName, NE_MODULE_NAME(pModule), nSize );
1601 if (pModule->ne_expver >= 0x400)
1602 GetLongPathNameA(NE_MODULE_NAME(pModule), lpFileName, nSize);
1603 TRACE("%04x -> '%s'\n", hModule, lpFileName );
1604 return strlen(lpFileName);
1608 /**********************************************************************
1609 * GetModuleUsage (KERNEL.48)
1611 INT16 WINAPI GetModuleUsage16( HINSTANCE16 hModule )
1613 NE_MODULE *pModule = NE_GetPtr( hModule );
1614 return pModule ? pModule->count : 0;
1618 /**********************************************************************
1619 * GetExpWinVer (KERNEL.167)
1621 WORD WINAPI GetExpWinVer16( HMODULE16 hModule )
1623 NE_MODULE *pModule = NE_GetPtr( hModule );
1624 if ( !pModule ) return 0;
1625 return pModule->ne_expver;
1629 /***********************************************************************
1630 * WinExec (KERNEL.166)
1632 HINSTANCE16 WINAPI WinExec16( LPCSTR lpCmdLine, UINT16 nCmdShow )
1634 LPCSTR p, args = NULL;
1635 LPCSTR name_beg, name_end;
1636 LPSTR name, cmdline;
1639 char buffer[MAX_PATH];
1641 if (*lpCmdLine == '"') /* has to be only one and only at beginning ! */
1643 name_beg = lpCmdLine+1;
1644 p = strchr ( lpCmdLine+1, '"' );
1648 args = strchr ( p, ' ' );
1650 else /* yes, even valid with trailing '"' missing */
1651 name_end = lpCmdLine+strlen(lpCmdLine);
1655 name_beg = lpCmdLine;
1656 args = strchr( lpCmdLine, ' ' );
1657 name_end = args ? args : lpCmdLine+strlen(lpCmdLine);
1660 if ((name_beg == lpCmdLine) && (!args))
1661 { /* just use the original cmdline string as file name */
1662 name = (LPSTR)lpCmdLine;
1666 if (!(name = HeapAlloc( GetProcessHeap(), 0, name_end - name_beg + 1 )))
1667 return ERROR_NOT_ENOUGH_MEMORY;
1668 memcpy( name, name_beg, name_end - name_beg );
1669 name[name_end - name_beg] = '\0';
1675 arglen = strlen(args);
1676 cmdline = HeapAlloc( GetProcessHeap(), 0, 2 + arglen );
1677 cmdline[0] = (BYTE)arglen;
1678 strcpy( cmdline + 1, args );
1682 cmdline = HeapAlloc( GetProcessHeap(), 0, 2 );
1683 cmdline[0] = cmdline[1] = 0;
1686 TRACE("name: '%s', cmdline: '%.*s'\n", name, cmdline[0], &cmdline[1]);
1688 if (SearchPathA( NULL, name, ".exe", sizeof(buffer), buffer, NULL ))
1690 LOADPARAMS16 params;
1693 showCmd[1] = nCmdShow;
1695 params.hEnvironment = 0;
1696 params.cmdLine = MapLS( cmdline );
1697 params.showCmd = MapLS( showCmd );
1698 params.reserved = 0;
1700 ret = LoadModule16( buffer, ¶ms );
1701 UnMapLS( params.cmdLine );
1702 UnMapLS( params.showCmd );
1704 else ret = GetLastError();
1706 HeapFree( GetProcessHeap(), 0, cmdline );
1707 if (name != lpCmdLine) HeapFree( GetProcessHeap(), 0, name );
1709 if (ret == 21 || ret == ERROR_BAD_FORMAT) /* 32-bit module or unknown executable*/
1712 ReleaseThunkLock( &count );
1713 ret = LOWORD( WinExec( lpCmdLine, nCmdShow ) );
1714 RestoreThunkLock( count );
1719 /***********************************************************************
1720 * GetProcAddress (KERNEL.50)
1722 FARPROC16 WINAPI GetProcAddress16( HMODULE16 hModule, LPCSTR name )
1727 if (!hModule) hModule = GetCurrentTask();
1728 hModule = GetExePtr( hModule );
1730 if (HIWORD(name) != 0)
1732 ordinal = NE_GetOrdinal( hModule, name );
1733 TRACE("%04x '%s'\n", hModule, name );
1737 ordinal = LOWORD(name);
1738 TRACE("%04x %04x\n", hModule, ordinal );
1740 if (!ordinal) return (FARPROC16)0;
1742 ret = NE_GetEntryPoint( hModule, ordinal );
1744 TRACE("returning %08x\n", (UINT)ret );
1749 /***************************************************************************
1750 * HasGPHandler (KERNEL.338)
1752 SEGPTR WINAPI HasGPHandler16( SEGPTR address )
1757 GPHANDLERDEF *gpHandler;
1759 if ( (hModule = FarGetOwner16( SELECTOROF(address) )) != 0
1760 && (gpOrdinal = NE_GetOrdinal( hModule, "__GP" )) != 0
1761 && (gpPtr = (SEGPTR)NE_GetEntryPointEx( hModule, gpOrdinal, FALSE )) != 0
1762 && !IsBadReadPtr16( gpPtr, sizeof(GPHANDLERDEF) )
1763 && (gpHandler = MapSL( gpPtr )) != NULL )
1765 while (gpHandler->selector)
1767 if ( SELECTOROF(address) == gpHandler->selector
1768 && OFFSETOF(address) >= gpHandler->rangeStart
1769 && OFFSETOF(address) < gpHandler->rangeEnd )
1770 return MAKESEGPTR( gpHandler->selector, gpHandler->handler );
1779 /**********************************************************************
1780 * GetModuleHandle (KERNEL.47)
1782 * Find a module from a module name.
1784 * NOTE: The current implementation works the same way the Windows 95 one
1785 * does. Do not try to 'fix' it, fix the callers.
1786 * + It does not do ANY extension handling (except that strange .EXE bit)!
1787 * + It does not care about paths, just about basenames. (same as Windows)
1791 * the win16 module handle if found
1793 * HIWORD (undocumented, see "Undocumented Windows", chapter 5):
1794 * Always hFirstModule
1796 DWORD WINAPI WIN16_GetModuleHandle( SEGPTR name )
1798 if (HIWORD(name) == 0)
1799 return MAKELONG(GetExePtr( (HINSTANCE16)name), hFirstModule );
1800 return MAKELONG(GetModuleHandle16( MapSL(name)), hFirstModule );
1803 /**********************************************************************
1804 * NE_GetModuleByFilename
1806 static HMODULE16 NE_GetModuleByFilename( LPCSTR name )
1810 BYTE len, *name_table;
1811 char tmpstr[MAX_PATH];
1814 lstrcpynA(tmpstr, name, sizeof(tmpstr));
1816 /* If the base filename of 'name' matches the base filename of the module
1817 * filename of some module (case-insensitive compare):
1818 * Return its handle.
1821 /* basename: search backwards in passed name to \ / or : */
1822 s = tmpstr + strlen(tmpstr);
1825 if (s[-1]=='/' || s[-1]=='\\' || s[-1]==':')
1830 /* search this in loaded filename list */
1831 for (hModule = hFirstModule; hModule ; hModule = pModule->next)
1836 pModule = NE_GetPtr( hModule );
1837 if (!pModule) break;
1838 if (!pModule->fileinfo) continue;
1839 if (pModule->ne_flags & NE_FFLAGS_WIN32) continue;
1841 ofs = (OFSTRUCT*)((BYTE *)pModule + pModule->fileinfo);
1842 loadedfn = ((char*)ofs->szPathName) + strlen(ofs->szPathName);
1843 /* basename: search backwards in pathname to \ / or : */
1844 while (loadedfn > (char*)ofs->szPathName)
1846 if (loadedfn[-1]=='/' || loadedfn[-1]=='\\' || loadedfn[-1]==':')
1850 /* case insensitive compare ... */
1851 if (!NE_strcasecmp(loadedfn, s))
1854 /* If basename (without ext) matches the module name of a module:
1855 * Return its handle.
1858 if ( (p = strrchr( s, '.' )) != NULL ) *p = '\0';
1861 for (hModule = hFirstModule; hModule ; hModule = pModule->next)
1863 pModule = NE_GetPtr( hModule );
1864 if (!pModule) break;
1865 if (pModule->ne_flags & NE_FFLAGS_WIN32) continue;
1867 name_table = (BYTE *)pModule + pModule->ne_restab;
1868 if ((*name_table == len) && !NE_strncasecmp(s, name_table+1, len))
1875 /***********************************************************************
1876 * GetProcAddress16 (KERNEL32.37)
1877 * Get procaddress in 16bit module from win32... (kernel32 undoc. ordinal func)
1879 FARPROC16 WINAPI WIN32_GetProcAddress16( HMODULE hModule, LPCSTR name )
1881 if (!hModule) return 0;
1882 if (HIWORD(hModule))
1884 WARN("hModule is Win32 handle (%p)\n", hModule );
1887 return GetProcAddress16( LOWORD(hModule), name );
1890 /**********************************************************************
1891 * ModuleFirst (TOOLHELP.59)
1893 BOOL16 WINAPI ModuleFirst16( MODULEENTRY *lpme )
1895 lpme->wNext = hFirstModule;
1896 return ModuleNext16( lpme );
1900 /**********************************************************************
1901 * ModuleNext (TOOLHELP.60)
1903 BOOL16 WINAPI ModuleNext16( MODULEENTRY *lpme )
1908 if (!lpme->wNext) return FALSE;
1909 if (!(pModule = NE_GetPtr( lpme->wNext ))) return FALSE;
1910 name = (char *)pModule + pModule->ne_restab;
1911 memcpy( lpme->szModule, name + 1, min(*name, MAX_MODULE_NAME) );
1912 lpme->szModule[min(*name, MAX_MODULE_NAME)] = '\0';
1913 lpme->hModule = lpme->wNext;
1914 lpme->wcUsage = pModule->count;
1915 lstrcpynA( lpme->szExePath, NE_MODULE_NAME(pModule), sizeof(lpme->szExePath) );
1916 lpme->wNext = pModule->next;
1921 /**********************************************************************
1922 * ModuleFindName (TOOLHELP.61)
1924 BOOL16 WINAPI ModuleFindName16( MODULEENTRY *lpme, LPCSTR name )
1926 lpme->wNext = GetModuleHandle16( name );
1927 return ModuleNext16( lpme );
1931 /**********************************************************************
1932 * ModuleFindHandle (TOOLHELP.62)
1934 BOOL16 WINAPI ModuleFindHandle16( MODULEENTRY *lpme, HMODULE16 hModule )
1936 hModule = GetExePtr( hModule );
1937 lpme->wNext = hModule;
1938 return ModuleNext16( lpme );
1942 /***************************************************************************
1943 * IsRomModule (KERNEL.323)
1945 BOOL16 WINAPI IsRomModule16( HMODULE16 unused )
1950 /***************************************************************************
1951 * IsRomFile (KERNEL.326)
1953 BOOL16 WINAPI IsRomFile16( HFILE16 unused )
1958 /***********************************************************************
1959 * create_dummy_module
1961 * Create a dummy NE module for Win32 or Winelib.
1963 static HMODULE16 create_dummy_module( HMODULE module32 )
1967 SEGTABLEENTRY *pSegment;
1970 const char* basename;
1973 char filename[MAX_PATH];
1974 IMAGE_NT_HEADERS *nt = RtlImageNtHeader( module32 );
1976 if (!nt) return ERROR_BAD_FORMAT;
1978 /* Extract base filename */
1979 len = GetModuleFileNameA( module32, filename, sizeof(filename) );
1980 if (!len || len >= sizeof(filename)) return ERROR_BAD_FORMAT;
1981 basename = strrchr(filename, '\\');
1982 if (!basename) basename = filename;
1984 len = strlen(basename);
1985 if ((s = strchr(basename, '.'))) len = s - basename;
1987 /* Allocate module */
1988 of_size = sizeof(OFSTRUCT) - sizeof(ofs->szPathName)
1989 + strlen(filename) + 1;
1990 size = sizeof(NE_MODULE) +
1991 /* loaded file info */
1992 ((of_size + 3) & ~3) +
1993 /* segment table: DS,CS */
1994 2 * sizeof(SEGTABLEENTRY) +
1997 /* several empty tables */
2000 hModule = GlobalAlloc16( GMEM_MOVEABLE | GMEM_ZEROINIT, size );
2001 if (!hModule) return ERROR_BAD_FORMAT;
2003 FarSetOwner16( hModule, hModule );
2004 pModule = (NE_MODULE *)GlobalLock16( hModule );
2006 /* Set all used entries */
2007 pModule->ne_magic = IMAGE_OS2_SIGNATURE;
2010 pModule->ne_flags = NE_FFLAGS_WIN32;
2011 pModule->ne_autodata = 0;
2012 pModule->ne_sssp = MAKESEGPTR( 0, 1 );
2013 pModule->ne_csip = MAKESEGPTR( 0, 2 );
2014 pModule->ne_heap = 0;
2015 pModule->ne_stack = 0;
2016 pModule->ne_cseg = 2;
2017 pModule->ne_cmod = 0;
2018 pModule->ne_cbnrestab = 0;
2019 pModule->fileinfo = sizeof(NE_MODULE);
2020 pModule->ne_exetyp = NE_OSFLAGS_WINDOWS;
2021 pModule->self = hModule;
2022 pModule->module32 = module32;
2024 /* Set version and flags */
2025 pModule->ne_expver = ((nt->OptionalHeader.MajorSubsystemVersion & 0xff) << 8 ) |
2026 (nt->OptionalHeader.MinorSubsystemVersion & 0xff);
2027 if (nt->FileHeader.Characteristics & IMAGE_FILE_DLL)
2028 pModule->ne_flags |= NE_FFLAGS_LIBMODULE | NE_FFLAGS_SINGLEDATA;
2030 /* Set loaded file information */
2031 ofs = (OFSTRUCT *)(pModule + 1);
2032 memset( ofs, 0, of_size );
2033 ofs->cBytes = of_size < 256 ? of_size : 255; /* FIXME */
2034 strcpy( ofs->szPathName, filename );
2036 pSegment = (SEGTABLEENTRY*)((char*)(pModule + 1) + ((of_size + 3) & ~3));
2037 pModule->ne_segtab = (char *)pSegment - (char *)pModule;
2040 pSegment->flags = NE_SEGFLAGS_DATA;
2041 pSegment->minsize = 0x1000;
2044 pSegment->flags = 0;
2048 pStr = (char *)pSegment;
2049 pModule->ne_restab = pStr - (char *)pModule;
2052 lstrcpynA( pStr+1, basename, len+1 );
2055 /* All tables zero terminated */
2056 pModule->ne_rsrctab = pModule->ne_imptab = pModule->ne_enttab = (char *)pStr - (char *)pModule;
2058 NE_RegisterModule( pModule );
2059 pModule->owner32 = LoadLibraryA( filename ); /* increment the ref count of the 32-bit module */
2063 /***********************************************************************
2064 * PrivateLoadLibrary (KERNEL32.@)
2066 * FIXME: rough guesswork, don't know what "Private" means
2068 HINSTANCE16 WINAPI PrivateLoadLibrary(LPCSTR libname)
2070 return LoadLibrary16(libname);
2073 /***********************************************************************
2074 * PrivateFreeLibrary (KERNEL32.@)
2076 * FIXME: rough guesswork, don't know what "Private" means
2078 void WINAPI PrivateFreeLibrary(HINSTANCE16 handle)
2080 FreeLibrary16(handle);
2083 /***********************************************************************
2084 * LoadLibrary32 (KERNEL.452)
2085 * LoadSystemLibrary32 (KERNEL.482)
2087 HMODULE WINAPI LoadLibrary32_16( LPCSTR libname )
2092 ReleaseThunkLock( &count );
2093 hModule = LoadLibraryA( libname );
2094 RestoreThunkLock( count );
2098 /***************************************************************************
2099 * MapHModuleLS (KERNEL32.@)
2101 HMODULE16 WINAPI MapHModuleLS(HMODULE hmod)
2107 return TASK_GetCurrent()->hInstance;
2109 return LOWORD(hmod); /* we already have a 16 bit module handle */
2110 pModule = (NE_MODULE*)GlobalLock16(hFirstModule);
2112 if (pModule->module32 == hmod)
2113 return pModule->self;
2114 pModule = (NE_MODULE*)GlobalLock16(pModule->next);
2116 if ((ret = create_dummy_module( hmod )) < 32)
2124 /***************************************************************************
2125 * MapHModuleSL (KERNEL32.@)
2127 HMODULE WINAPI MapHModuleSL(HMODULE16 hmod)
2132 TDB *pTask = TASK_GetCurrent();
2133 hmod = pTask->hModule;
2135 pModule = (NE_MODULE*)GlobalLock16(hmod);
2136 if ((pModule->ne_magic != IMAGE_OS2_SIGNATURE) || !(pModule->ne_flags & NE_FFLAGS_WIN32))
2138 return pModule->module32;
2141 /***************************************************************************
2142 * MapHInstLS (KERNEL32.@)
2143 * MapHInstLS (KERNEL.472)
2145 void WINAPI __regs_MapHInstLS( CONTEXT86 *context )
2147 context->Eax = MapHModuleLS( (HMODULE)context->Eax );
2149 #ifdef DEFINE_REGS_ENTRYPOINT
2150 DEFINE_REGS_ENTRYPOINT( MapHInstLS, 0, 0 );
2153 /***************************************************************************
2154 * MapHInstSL (KERNEL32.@)
2155 * MapHInstSL (KERNEL.473)
2157 void WINAPI __regs_MapHInstSL( CONTEXT86 *context )
2159 context->Eax = (DWORD)MapHModuleSL( context->Eax );
2161 #ifdef DEFINE_REGS_ENTRYPOINT
2162 DEFINE_REGS_ENTRYPOINT( MapHInstSL, 0, 0 );
2165 /***************************************************************************
2166 * MapHInstLS_PN (KERNEL32.@)
2168 void WINAPI __regs_MapHInstLS_PN( CONTEXT86 *context )
2170 if (context->Eax) context->Eax = MapHModuleLS( (HMODULE)context->Eax );
2172 #ifdef DEFINE_REGS_ENTRYPOINT
2173 DEFINE_REGS_ENTRYPOINT( MapHInstLS_PN, 0, 0 );
2176 /***************************************************************************
2177 * MapHInstSL_PN (KERNEL32.@)
2179 void WINAPI __regs_MapHInstSL_PN( CONTEXT86 *context )
2181 if (context->Eax) context->Eax = (DWORD)MapHModuleSL( context->Eax );
2183 #ifdef DEFINE_REGS_ENTRYPOINT
2184 DEFINE_REGS_ENTRYPOINT( MapHInstSL_PN, 0, 0 );