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winedbg: Fix the path traversal.
[wine.git] / dlls / kernel32 / ne_module.c
blobdae1a0d40e64d7cefa8cc9a42faebff6e8edd6dc
1 /*
2 * NE modules
3 *
4 * Copyright 1995 Alexandre Julliard
5 *
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
10 *
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
19 */
20
21 #include "config.h"
22 #include "wine/port.h"
23
24 #include <assert.h>
25 #include <fcntl.h>
26 #include <stdarg.h>
27 #include <stdio.h>
28 #include <stdlib.h>
29 #include <string.h>
30 #ifdef HAVE_UNISTD_H
31 # include <unistd.h>
32 #endif
33 #include <ctype.h>
34
35 #include "windef.h"
36 #include "wine/winbase16.h"
37 #include "wownt32.h"
38 #include "winternl.h"
39 #include "toolhelp.h"
40 #include "kernel_private.h"
41 #include "kernel16_private.h"
42 #include "wine/exception.h"
43 #include "wine/debug.h"
44
45 WINE_DEFAULT_DEBUG_CHANNEL(module);
46 WINE_DECLARE_DEBUG_CHANNEL(loaddll);
47 WINE_DECLARE_DEBUG_CHANNEL(relay);
48
49 #include "pshpack1.h"
50 typedef struct _GPHANDLERDEF
51 {
52 WORD selector;
53 WORD rangeStart;
54 WORD rangeEnd;
55 WORD handler;
56 } GPHANDLERDEF;
57 #include "poppack.h"
58
59 /*
60 * Segment table entry
61 */
62 struct ne_segment_table_entry_s
63 {
64 WORD seg_data_offset; /* Sector offset of segment data */
65 WORD seg_data_length; /* Length of segment data */
66 WORD seg_flags; /* Flags associated with this segment */
67 WORD min_alloc; /* Minimum allocation size for this */
68 };
69
70 #define hFirstModule (pThhook->hExeHead)
71
72 struct builtin_dll
73 {
74 const IMAGE_DOS_HEADER *header; /* module headers */
75 const char *file_name; /* module file name */
76 };
77
78 /* Table of all built-in DLLs */
79
80 #define MAX_DLLS 50
81
82 static struct builtin_dll builtin_dlls[MAX_DLLS];
83
84 static HINSTANCE16 NE_LoadModule( LPCSTR name, BOOL lib_only );
85 static BOOL16 NE_FreeModule( HMODULE16 hModule, BOOL call_wep );
86
87 static HINSTANCE16 MODULE_LoadModule16( LPCSTR libname, BOOL implicit, BOOL lib_only );
88
89 static HMODULE16 NE_GetModuleByFilename( LPCSTR name );
90
91
92 /* patch all the flat cs references of the code segment if necessary */
93 static inline void patch_code_segment( NE_MODULE *pModule )
94 {
95 #ifdef __i386__
96 int i;
97 CALLFROM16 *call;
98 SEGTABLEENTRY *pSeg = NE_SEG_TABLE( pModule );
99
100 for (i = 0; i < pModule->ne_cseg; i++, pSeg++)
101 if (!(pSeg->flags & NE_SEGFLAGS_DATA)) break; /* found the code segment */
102
103 call = GlobalLock16( pSeg->hSeg );
104
105 /* patch glue code address and code selector */
106 for (i = 0; call[i].pushl == 0x68; i++)
107 {
108 if (call[i].ret[0] == 0xca66 || call[i].ret[0] == 0xcb66) /* register entry point? */
109 call[i].glue = __wine_call_from_16_regs;
110 else
111 call[i].glue = __wine_call_from_16;
112 call[i].flatcs = wine_get_cs();
113 }
114
115 if (TRACE_ON(relay)) /* patch relay functions to all point to relay_call_from_16 */
116 for (i = 0; call[i].pushl == 0x68; i++) call[i].relay = relay_call_from_16;
117 #endif
118 }
119
120
121 /***********************************************************************
122 * NE_strcasecmp
123 *
124 * locale-independent case conversion for module lookups
125 */
126 static int NE_strcasecmp( const char *str1, const char *str2 )
127 {
128 int ret = 0;
129 for ( ; ; str1++, str2++)
130 if ((ret = RtlUpperChar(*str1) - RtlUpperChar(*str2)) || !*str1) break;
131 return ret;
132 }
133
134
135 /***********************************************************************
136 * NE_strncasecmp
137 *
138 * locale-independent case conversion for module lookups
139 */
140 static int NE_strncasecmp( const char *str1, const char *str2, int len )
141 {
142 int ret = 0;
143 for ( ; len > 0; len--, str1++, str2++)
144 if ((ret = RtlUpperChar(*str1) - RtlUpperChar(*str2)) || !*str1) break;
145 return ret;
146 }
147
148
149 /***********************************************************************
150 * find_dll_descr
151 *
152 * Find a descriptor in the list
153 */
154 static const IMAGE_DOS_HEADER *find_dll_descr( const char *dllname, const char **file_name )
155 {
156 int i;
157 const IMAGE_DOS_HEADER *mz_header;
158 const IMAGE_OS2_HEADER *ne_header;
159 const BYTE *name_table;
160
161 for (i = 0; i < MAX_DLLS; i++)
162 {
163 mz_header = builtin_dlls[i].header;
164 if (mz_header)
165 {
166 ne_header = (const IMAGE_OS2_HEADER *)((const char *)mz_header + mz_header->e_lfanew);
167 name_table = (const BYTE *)ne_header + ne_header->ne_restab;
168
169 /* check the dll file name */
170 if (!NE_strcasecmp( builtin_dlls[i].file_name, dllname ) ||
171 /* check the dll module name (without extension) */
172 (!NE_strncasecmp( dllname, (const char*)name_table+1, *name_table ) &&
173 !strcmp( dllname + *name_table, ".dll" )))
174 {
175 *file_name = builtin_dlls[i].file_name;
176 return builtin_dlls[i].header;
177 }
178 }
179 }
180 return NULL;
181 }
182
183
184 /***********************************************************************
185 * __wine_dll_register_16 (KERNEL32.@)
186 *
187 * Register a built-in DLL descriptor.
188 */
189 void __wine_dll_register_16( const IMAGE_DOS_HEADER *header, const char *file_name )
190 {
191 int i;
192
193 for (i = 0; i < MAX_DLLS; i++)
194 {
195 if (builtin_dlls[i].header) continue;
196 builtin_dlls[i].header = header;
197 builtin_dlls[i].file_name = file_name;
198 break;
199 }
200 assert( i < MAX_DLLS );
201 }
202
203
204 /***********************************************************************
205 * __wine_dll_unregister_16 (KERNEL32.@)
206 *
207 * Unregister a built-in DLL descriptor.
208 */
209 void __wine_dll_unregister_16( const IMAGE_DOS_HEADER *header )
210 {
211 int i;
212
213 for (i = 0; i < MAX_DLLS; i++)
214 {
215 if (builtin_dlls[i].header != header) continue;
216 builtin_dlls[i].header = NULL;
217 break;
218 }
219 }
220
221
222 /***********************************************************************
223 * NE_GetPtr
224 */
225 NE_MODULE *NE_GetPtr( HMODULE16 hModule )
226 {
227 return (NE_MODULE *)GlobalLock16( GetExePtr(hModule) );
228 }
229
230
231 /**********************************************************************
232 * NE_RegisterModule
233 */
234 static void NE_RegisterModule( NE_MODULE *pModule )
235 {
236 pModule->next = hFirstModule;
237 hFirstModule = pModule->self;
238 }
239
240
241 /***********************************************************************
242 * NE_DumpModule
243 */
244 void NE_DumpModule( HMODULE16 hModule )
245 {
246 int i, ordinal;
247 SEGTABLEENTRY *pSeg;
248 BYTE *pstr;
249 WORD *pword;
250 NE_MODULE *pModule;
251 ET_BUNDLE *bundle;
252 ET_ENTRY *entry;
253
254 if (!(pModule = NE_GetPtr( hModule )))
255 {
256 ERR( "**** %04x is not a module handle\n", hModule );
257 return;
258 }
259
260 /* Dump the module info */
261 TRACE( "---\n" );
262 TRACE( "Module %04x:\n", hModule );
263 TRACE( "count=%d flags=%04x heap=%d stack=%d\n",
264 pModule->count, pModule->ne_flags,
265 pModule->ne_heap, pModule->ne_stack );
266 TRACE( "cs:ip=%04x:%04x ss:sp=%04x:%04x ds=%04x nb seg=%d modrefs=%d\n",
267 SELECTOROF(pModule->ne_csip), OFFSETOF(pModule->ne_csip),
268 SELECTOROF(pModule->ne_sssp), OFFSETOF(pModule->ne_sssp),
269 pModule->ne_autodata, pModule->ne_cseg, pModule->ne_cmod );
270 TRACE( "os_flags=%d swap_area=%d version=%04x\n",
271 pModule->ne_exetyp, pModule->ne_swaparea, pModule->ne_expver );
272 if (pModule->ne_flags & NE_FFLAGS_WIN32)
273 TRACE( "PE module=%p\n", pModule->module32 );
274
275 /* Dump the file info */
276 TRACE( "---\n" );
277 TRACE( "Filename: '%s'\n", NE_MODULE_NAME(pModule) );
278
279 /* Dump the segment table */
280 TRACE( "---\n" );
281 TRACE( "Segment table:\n" );
282 pSeg = NE_SEG_TABLE( pModule );
283 for (i = 0; i < pModule->ne_cseg; i++, pSeg++)
284 TRACE( "%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 );
287
288 /* Dump the resource table */
289 TRACE( "---\n" );
290 TRACE( "Resource table:\n" );
291 if (pModule->ne_rsrctab)
292 {
293 pword = (WORD *)((BYTE *)pModule + pModule->ne_rsrctab);
294 TRACE( "Alignment: %d\n", *pword++ );
295 while (*pword)
296 {
297 NE_TYPEINFO *ptr = (NE_TYPEINFO *)pword;
298 NE_NAMEINFO *pname = (NE_NAMEINFO *)(ptr + 1);
299 TRACE( "id=%04x count=%d\n", ptr->type_id, ptr->count );
300 for (i = 0; i < ptr->count; i++, pname++)
301 TRACE( "offset=%d len=%d id=%04x\n",
302 pname->offset, pname->length, pname->id );
303 pword = (WORD *)pname;
304 }
305 }
306 else TRACE( "None\n" );
307
308 /* Dump the resident name table */
309 TRACE( "---\n" );
310 TRACE( "Resident-name table:\n" );
311 pstr = (BYTE*) pModule + pModule->ne_restab;
312 while (*pstr)
313 {
314 TRACE( "%*.*s: %d\n", *pstr, *pstr, pstr + 1,
315 *(WORD *)(pstr + *pstr + 1) );
316 pstr += *pstr + 1 + sizeof(WORD);
317 }
318
319 /* Dump the module reference table */
320 TRACE( "---\n" );
321 TRACE( "Module ref table:\n" );
322 if (pModule->ne_modtab)
323 {
324 pword = (WORD *)((BYTE *)pModule + pModule->ne_modtab);
325 for (i = 0; i < pModule->ne_cmod; i++, pword++)
326 {
327 char name[10];
328 GetModuleName16( *pword, name, sizeof(name) );
329 TRACE( "%d: %04x -> '%s'\n", i, *pword, name );
330 }
331 }
332 else TRACE( "None\n" );
333
334 /* Dump the entry table */
335 TRACE( "---\n" );
336 TRACE( "Entry table:\n" );
337 bundle = (ET_BUNDLE *)((BYTE *)pModule+pModule->ne_enttab);
338 do {
339 entry = (ET_ENTRY *)((BYTE *)bundle+6);
340 TRACE( "Bundle %d-%d: %02x\n", bundle->first, bundle->last, entry->type);
341 ordinal = bundle->first;
342 while (ordinal < bundle->last)
343 {
344 if (entry->type == 0xff)
345 TRACE("%d: %02x:%04x (moveable)\n", ordinal++, entry->segnum, entry->offs);
346 else
347 TRACE("%d: %02x:%04x (fixed)\n", ordinal++, entry->segnum, entry->offs);
348 entry++;
349 }
350 } while ( (bundle->next) && (bundle = ((ET_BUNDLE *)((BYTE *)pModule + bundle->next))) );
351
352 /* Dump the non-resident names table */
353 TRACE( "---\n" );
354 TRACE( "Non-resident names table:\n" );
355 if (pModule->nrname_handle)
356 {
357 pstr = GlobalLock16( pModule->nrname_handle );
358 while (*pstr)
359 {
360 TRACE( "%*.*s: %d\n", *pstr, *pstr, pstr + 1,
361 *(WORD *)(pstr + *pstr + 1) );
362 pstr += *pstr + 1 + sizeof(WORD);
363 }
364 }
365 TRACE( "\n" );
366 }
367
368
369 /***********************************************************************
370 * NE_WalkModules
371 *
372 * Walk the module list and print the modules.
373 */
374 void NE_WalkModules(void)
375 {
376 HMODULE16 hModule = hFirstModule;
377 MESSAGE( "Module Flags Name\n" );
378 while (hModule)
379 {
380 NE_MODULE *pModule = NE_GetPtr( hModule );
381 if (!pModule)
382 {
383 MESSAGE( "Bad module %04x in list\n", hModule );
384 return;
385 }
386 MESSAGE( " %04x %04x %.*s\n", hModule, pModule->ne_flags,
387 *((char *)pModule + pModule->ne_restab),
388 (char *)pModule + pModule->ne_restab + 1 );
389 hModule = pModule->next;
390 }
391 }
392
393
394 /***********************************************************************
395 * NE_InitResourceHandler
396 *
397 * Fill in 'resloader' fields in the resource table.
398 */
399 static void NE_InitResourceHandler( HMODULE16 hModule )
400 {
401 static FARPROC16 proc;
402
403 NE_TYPEINFO *pTypeInfo;
404 NE_MODULE *pModule;
405
406 if (!(pModule = NE_GetPtr( hModule )) || !pModule->ne_rsrctab) return;
407
408 TRACE("InitResourceHandler[%04x]\n", hModule );
409
410 if (!proc) proc = GetProcAddress16( GetModuleHandle16("KERNEL"), "DefResourceHandler" );
411
412 pTypeInfo = (NE_TYPEINFO *)((char *)pModule + pModule->ne_rsrctab + 2);
413 while(pTypeInfo->type_id)
414 {
415 memcpy_unaligned( &pTypeInfo->resloader, &proc, sizeof(FARPROC16) );
416 pTypeInfo = (NE_TYPEINFO *)((char*)(pTypeInfo + 1) + pTypeInfo->count * sizeof(NE_NAMEINFO));
417 }
418 }
419
420
421 /***********************************************************************
422 * NE_GetOrdinal
423 *
424 * Lookup the ordinal for a given name.
425 */
426 WORD NE_GetOrdinal( HMODULE16 hModule, const char *name )
427 {
428 char buffer[256], *p;
429 BYTE *cpnt;
430 BYTE len;
431 NE_MODULE *pModule;
432
433 if (!(pModule = NE_GetPtr( hModule ))) return 0;
434 if (pModule->ne_flags & NE_FFLAGS_WIN32) return 0;
435
436 TRACE("(%04x,'%s')\n", hModule, name );
437
438 /* First handle names of the form '#xxxx' */
439
440 if (name[0] == '#') return atoi( name + 1 );
441
442 /* Now copy and uppercase the string */
443
444 strcpy( buffer, name );
445 for (p = buffer; *p; p++) *p = RtlUpperChar(*p);
446 len = p - buffer;
447
448 /* First search the resident names */
449
450 cpnt = (BYTE *)pModule + pModule->ne_restab;
451
452 /* Skip the first entry (module name) */
453 cpnt += *cpnt + 1 + sizeof(WORD);
454 while (*cpnt)
455 {
456 if ((*cpnt == len) && !memcmp( cpnt+1, buffer, len ))
457 {
458 WORD ordinal;
459 memcpy( &ordinal, cpnt + *cpnt + 1, sizeof(ordinal) );
460 TRACE(" Found: ordinal=%d\n", ordinal );
461 return ordinal;
462 }
463 cpnt += *cpnt + 1 + sizeof(WORD);
464 }
465
466 /* Now search the non-resident names table */
467
468 if (!pModule->nrname_handle) return 0; /* No non-resident table */
469 cpnt = GlobalLock16( pModule->nrname_handle );
470
471 /* Skip the first entry (module description string) */
472 cpnt += *cpnt + 1 + sizeof(WORD);
473 while (*cpnt)
474 {
475 if ((*cpnt == len) && !memcmp( cpnt+1, buffer, len ))
476 {
477 WORD ordinal;
478 memcpy( &ordinal, cpnt + *cpnt + 1, sizeof(ordinal) );
479 TRACE(" Found: ordinal=%d\n", ordinal );
480 return ordinal;
481 }
482 cpnt += *cpnt + 1 + sizeof(WORD);
483 }
484 return 0;
485 }
486
487
488 /***********************************************************************
489 * NE_GetEntryPoint
490 */
491 FARPROC16 WINAPI NE_GetEntryPoint( HMODULE16 hModule, WORD ordinal )
492 {
493 return NE_GetEntryPointEx( hModule, ordinal, TRUE );
494 }
495
496 /***********************************************************************
497 * NE_GetEntryPointEx
498 */
499 FARPROC16 NE_GetEntryPointEx( HMODULE16 hModule, WORD ordinal, BOOL16 snoop )
500 {
501 NE_MODULE *pModule;
502 WORD sel, offset, i;
503
504 ET_ENTRY *entry;
505 ET_BUNDLE *bundle;
506
507 if (!(pModule = NE_GetPtr( hModule ))) return 0;
508 assert( !(pModule->ne_flags & NE_FFLAGS_WIN32) );
509
510 bundle = (ET_BUNDLE *)((BYTE *)pModule + pModule->ne_enttab);
511 while ((ordinal < bundle->first + 1) || (ordinal > bundle->last))
512 {
513 if (!(bundle->next))
514 return 0;
515 bundle = (ET_BUNDLE *)((BYTE *)pModule + bundle->next);
516 }
517
518 entry = (ET_ENTRY *)((BYTE *)bundle+6);
519 for (i=0; i < (ordinal - bundle->first - 1); i++)
520 entry++;
521
522 sel = entry->segnum;
523 memcpy( &offset, &entry->offs, sizeof(WORD) );
524
525 if (sel == 0xfe) sel = 0xffff; /* constant entry */
526 else sel = GlobalHandleToSel16(NE_SEG_TABLE(pModule)[sel-1].hSeg);
527 if (sel==0xffff)
528 return (FARPROC16)MAKESEGPTR( sel, offset );
529 if (!snoop)
530 return (FARPROC16)MAKESEGPTR( sel, offset );
531 else
532 return SNOOP16_GetProcAddress16(hModule,ordinal,(FARPROC16)MAKESEGPTR( sel, offset ));
533 }
534
535
536 /***********************************************************************
537 * EntryAddrProc (KERNEL.667) Wine-specific export
538 *
539 * Return the entry point for a given ordinal.
540 */
541 FARPROC16 WINAPI EntryAddrProc16( HMODULE16 hModule, WORD ordinal )
542 {
543 FARPROC16 ret = NE_GetEntryPointEx( hModule, ordinal, TRUE );
544 CURRENT_STACK16->ecx = hModule; /* FIXME: might be incorrect value */
545 return ret;
546 }
547
548 /***********************************************************************
549 * NE_SetEntryPoint
550 *
551 * Change the value of an entry point. Use with caution!
552 * It can only change the offset value, not the selector.
553 */
554 BOOL16 NE_SetEntryPoint( HMODULE16 hModule, WORD ordinal, WORD offset )
555 {
556 NE_MODULE *pModule;
557 ET_ENTRY *entry;
558 ET_BUNDLE *bundle;
559 int i;
560
561 if (!(pModule = NE_GetPtr( hModule ))) return FALSE;
562 assert( !(pModule->ne_flags & NE_FFLAGS_WIN32) );
563
564 bundle = (ET_BUNDLE *)((BYTE *)pModule + pModule->ne_enttab);
565 while ((ordinal < bundle->first + 1) || (ordinal > bundle->last))
566 {
567 bundle = (ET_BUNDLE *)((BYTE *)pModule + bundle->next);
568 if (!(bundle->next)) return 0;
569 }
570
571 entry = (ET_ENTRY *)((BYTE *)bundle+6);
572 for (i=0; i < (ordinal - bundle->first - 1); i++)
573 entry++;
574
575 memcpy( &entry->offs, &offset, sizeof(WORD) );
576 return TRUE;
577 }
578
579
580 /***********************************************************************
581 * build_bundle_data
582 *
583 * Build the entry table bundle data from the on-disk format. Helper for build_module.
584 */
585 static void *build_bundle_data( NE_MODULE *pModule, void *dest, const BYTE *table )
586 {
587 ET_BUNDLE *oldbundle, *bundle = dest;
588 ET_ENTRY *entry;
589 BYTE nr_entries, type;
590
591 memset(bundle, 0, sizeof(ET_BUNDLE)); /* in case no entry table exists */
592 entry = (ET_ENTRY *)((BYTE *)bundle+6);
593
594 while ((nr_entries = *table++))
595 {
596 if ((type = *table++))
597 {
598 bundle->last += nr_entries;
599 if (type == 0xff)
600 {
601 while (nr_entries--)
602 {
603 entry->type = type;
604 entry->flags = *table++;
605 table += sizeof(WORD);
606 entry->segnum = *table++;
607 entry->offs = *(const WORD *)table;
608 table += sizeof(WORD);
609 entry++;
610 }
611 }
612 else
613 {
614 while (nr_entries--)
615 {
616 entry->type = type;
617 entry->flags = *table++;
618 entry->segnum = type;
619 entry->offs = *(const WORD *)table;
620 table += sizeof(WORD);
621 entry++;
622 }
623 }
624 }
625 else
626 {
627 if (bundle->first == bundle->last)
628 {
629 bundle->first += nr_entries;
630 bundle->last += nr_entries;
631 }
632 else
633 {
634 oldbundle = bundle;
635 oldbundle->next = (char *)entry - (char *)pModule;
636 bundle = (ET_BUNDLE *)entry;
637 bundle->first = bundle->last = oldbundle->last + nr_entries;
638 bundle->next = 0;
639 entry = (ET_ENTRY*)(((BYTE*)entry)+sizeof(ET_BUNDLE));
640 }
641 }
642 }
643 return entry;
644 }
645
646
647 /***********************************************************************
648 * build_module
649 *
650 * Build the in-memory module from the on-disk data.
651 */
652 static HMODULE16 build_module( const void *mapping, SIZE_T mapping_size, LPCSTR path )
653 {
654 const IMAGE_DOS_HEADER *mz_header = mapping;
655 const IMAGE_OS2_HEADER *ne_header;
656 const struct ne_segment_table_entry_s *pSeg;
657 const void *ptr;
658 int i;
659 size_t size;
660 HMODULE16 hModule;
661 NE_MODULE *pModule;
662 BYTE *buffer, *pData, *end;
663 OFSTRUCT *ofs;
664
665 if (mapping_size < sizeof(*mz_header)) return ERROR_BAD_FORMAT;
666 if (mz_header->e_magic != IMAGE_DOS_SIGNATURE) return ERROR_BAD_FORMAT;
667 ne_header = (const IMAGE_OS2_HEADER *)((const char *)mapping + mz_header->e_lfanew);
668 if (mz_header->e_lfanew + sizeof(*ne_header) > mapping_size) return ERROR_BAD_FORMAT;
669 if (ne_header->ne_magic == IMAGE_NT_SIGNATURE) return 21; /* win32 exe */
670 if (ne_header->ne_magic == IMAGE_OS2_SIGNATURE_LX)
671 {
672 MESSAGE("Sorry, %s is an OS/2 linear executable (LX) file!\n", path);
673 return 12;
674 }
675 if (ne_header->ne_magic != IMAGE_OS2_SIGNATURE) return ERROR_BAD_FORMAT;
676
677 /* We now have a valid NE header */
678
679 /* check to be able to fall back to loading OS/2 programs as DOS
680 * FIXME: should this check be reversed in order to be less strict?
681 * (only fail for OS/2 ne_exetyp 0x01 here?) */
682 if ((ne_header->ne_exetyp != 0x02 /* Windows */)
683 && (ne_header->ne_exetyp != 0x04) /* Windows 386 */)
684 return ERROR_BAD_FORMAT;
685
686 size = sizeof(NE_MODULE) +
687 /* segment table */
688 ne_header->ne_cseg * sizeof(SEGTABLEENTRY) +
689 /* resource table */
690 ne_header->ne_restab - ne_header->ne_rsrctab +
691 /* resident names table */
692 ne_header->ne_modtab - ne_header->ne_restab +
693 /* module ref table */
694 ne_header->ne_cmod * sizeof(WORD) +
695 /* imported names table */
696 ne_header->ne_enttab - ne_header->ne_imptab +
697 /* entry table length */
698 ne_header->ne_cbenttab +
699 /* entry table extra conversion space */
700 sizeof(ET_BUNDLE) +
701 2 * (ne_header->ne_cbenttab - ne_header->ne_cmovent*6) +
702 /* loaded file info */
703 sizeof(OFSTRUCT) - sizeof(ofs->szPathName) + strlen(path) + 1;
704
705 hModule = GlobalAlloc16( GMEM_FIXED | GMEM_ZEROINIT, size );
706 if (!hModule) return ERROR_BAD_FORMAT;
707
708 FarSetOwner16( hModule, hModule );
709 pModule = (NE_MODULE *)GlobalLock16( hModule );
710 memcpy( pModule, ne_header, sizeof(*ne_header) );
711 pModule->count = 0;
712 /* check programs for default minimal stack size */
713 if (!(pModule->ne_flags & NE_FFLAGS_LIBMODULE) && (pModule->ne_stack < 0x1400))
714 pModule->ne_stack = 0x1400;
715
716 pModule->self = hModule;
717 pModule->mapping = mapping;
718 pModule->mapping_size = mapping_size;
719
720 pData = (BYTE *)(pModule + 1);
721
722 /* Clear internal Wine flags in case they are set in the EXE file */
723
724 pModule->ne_flags &= ~(NE_FFLAGS_BUILTIN | NE_FFLAGS_WIN32);
725
726 /* Get the segment table */
727
728 pModule->ne_segtab = pData - (BYTE *)pModule;
729 if (!(pSeg = NE_GET_DATA( pModule, mz_header->e_lfanew + ne_header->ne_segtab,
730 ne_header->ne_cseg * sizeof(struct ne_segment_table_entry_s) )))
731 goto failed;
732 for (i = ne_header->ne_cseg; i > 0; i--, pSeg++)
733 {
734 memcpy( pData, pSeg, sizeof(*pSeg) );
735 pData += sizeof(SEGTABLEENTRY);
736 }
737
738 /* Get the resource table */
739
740 if (ne_header->ne_rsrctab < ne_header->ne_restab)
741 {
742 pModule->ne_rsrctab = pData - (BYTE *)pModule;
743 if (!NE_READ_DATA( pModule, pData, mz_header->e_lfanew + ne_header->ne_rsrctab,
744 ne_header->ne_restab - ne_header->ne_rsrctab )) goto failed;
745 pData += ne_header->ne_restab - ne_header->ne_rsrctab;
746 }
747 else pModule->ne_rsrctab = 0; /* No resource table */
748
749 /* Get the resident names table */
750
751 pModule->ne_restab = pData - (BYTE *)pModule;
752 if (!NE_READ_DATA( pModule, pData, mz_header->e_lfanew + ne_header->ne_restab,
753 ne_header->ne_modtab - ne_header->ne_restab )) goto failed;
754 pData += ne_header->ne_modtab - ne_header->ne_restab;
755
756 /* Get the module references table */
757
758 if (ne_header->ne_cmod > 0)
759 {
760 pModule->ne_modtab = pData - (BYTE *)pModule;
761 if (!NE_READ_DATA( pModule, pData, mz_header->e_lfanew + ne_header->ne_modtab,
762 ne_header->ne_cmod * sizeof(WORD) )) goto failed;
763 pData += ne_header->ne_cmod * sizeof(WORD);
764 }
765 else pModule->ne_modtab = 0; /* No module references */
766
767 /* Get the imported names table */
768
769 pModule->ne_imptab = pData - (BYTE *)pModule;
770 if (!NE_READ_DATA( pModule, pData, mz_header->e_lfanew + ne_header->ne_imptab,
771 ne_header->ne_enttab - ne_header->ne_imptab )) goto failed;
772 pData += ne_header->ne_enttab - ne_header->ne_imptab;
773
774 /* Load entry table, convert it to the optimized version used by Windows */
775
776 pModule->ne_enttab = pData - (BYTE *)pModule;
777 if (!(ptr = NE_GET_DATA( pModule, mz_header->e_lfanew + ne_header->ne_enttab,
778 ne_header->ne_cbenttab ))) goto failed;
779 end = build_bundle_data( pModule, pData, ptr );
780
781 pData += ne_header->ne_cbenttab + sizeof(ET_BUNDLE) +
782 2 * (ne_header->ne_cbenttab - ne_header->ne_cmovent*6);
783
784 if (end > pData)
785 {
786 FIXME( "not enough space for entry table for %s\n", debugstr_a(path) );
787 goto failed;
788 }
789
790 /* Store the filename information */
791
792 pModule->fileinfo = pData - (BYTE *)pModule;
793 ofs = (OFSTRUCT *)pData;
794 ofs->cBytes = sizeof(OFSTRUCT) - sizeof(ofs->szPathName) + strlen(path);
795 ofs->fFixedDisk = 1;
796 strcpy( ofs->szPathName, path );
797 pData += ofs->cBytes + 1;
798 assert( (BYTE *)pModule + size <= pData );
799
800 /* Get the non-resident names table */
801
802 if (ne_header->ne_cbnrestab)
803 {
804 pModule->nrname_handle = GlobalAlloc16( 0, ne_header->ne_cbnrestab );
805 if (!pModule->nrname_handle) goto failed;
806 FarSetOwner16( pModule->nrname_handle, hModule );
807 buffer = GlobalLock16( pModule->nrname_handle );
808 if (!NE_READ_DATA( pModule, buffer, ne_header->ne_nrestab, ne_header->ne_cbnrestab ))
809 {
810 GlobalFree16( pModule->nrname_handle );
811 goto failed;
812 }
813 }
814 else pModule->nrname_handle = 0;
815
816 /* Allocate a segment for the implicitly-loaded DLLs */
817
818 if (pModule->ne_cmod)
819 {
820 pModule->dlls_to_init = GlobalAlloc16( GMEM_ZEROINIT,
821 (pModule->ne_cmod+1)*sizeof(HMODULE16) );
822 if (!pModule->dlls_to_init)
823 {
824 if (pModule->nrname_handle) GlobalFree16( pModule->nrname_handle );
825 goto failed;
826 }
827 FarSetOwner16( pModule->dlls_to_init, hModule );
828 }
829 else pModule->dlls_to_init = 0;
830
831 NE_RegisterModule( pModule );
832 return hModule;
833
834 failed:
835 GlobalFree16( hModule );
836 return ERROR_BAD_FORMAT;
837 }
838
839
840 /***********************************************************************
841 * NE_LoadDLLs
842 *
843 * Load all DLLs implicitly linked to a module.
844 */
845 static BOOL NE_LoadDLLs( NE_MODULE *pModule )
846 {
847 int i;
848 WORD *pModRef = (WORD *)((char *)pModule + pModule->ne_modtab);
849 WORD *pDLLs = (WORD *)GlobalLock16( pModule->dlls_to_init );
850
851 for (i = 0; i < pModule->ne_cmod; i++, pModRef++)
852 {
853 char buffer[260], *p;
854 BYTE *pstr = (BYTE *)pModule + pModule->ne_imptab + *pModRef;
855 memcpy( buffer, pstr + 1, *pstr );
856 *(buffer + *pstr) = 0; /* terminate it */
857
858 TRACE("Loading '%s'\n", buffer );
859 if (!(*pModRef = GetModuleHandle16( buffer )))
860 {
861 /* If the DLL is not loaded yet, load it and store */
862 /* its handle in the list of DLLs to initialize. */
863 HMODULE16 hDLL;
864
865 /* Append .DLL to name if no extension present */
866 if (!(p = strrchr( buffer, '.')) || strchr( p, '/' ) || strchr( p, '\\'))
867 strcat( buffer, ".DLL" );
868
869 if ((hDLL = MODULE_LoadModule16( buffer, TRUE, TRUE )) < 32)
870 {
871 /* FIXME: cleanup what was done */
872
873 MESSAGE( "Could not load '%s' required by '%.*s', error=%d\n",
874 buffer, *((BYTE*)pModule + pModule->ne_restab),
875 (char *)pModule + pModule->ne_restab + 1, hDLL );
876 return FALSE;
877 }
878 *pModRef = GetExePtr( hDLL );
879 *pDLLs++ = *pModRef;
880 }
881 else /* Increment the reference count of the DLL */
882 {
883 NE_MODULE *pOldDLL = NE_GetPtr( *pModRef );
884 if (pOldDLL) pOldDLL->count++;
885 }
886 }
887 return TRUE;
888 }
889
890
891 /**********************************************************************
892 * NE_DoLoadModule
893 *
894 * Load first instance of NE module from file.
895 *
896 * pModule must point to a module structure prepared by build_module.
897 * This routine must never be called twice on a module.
898 */
899 static HINSTANCE16 NE_DoLoadModule( NE_MODULE *pModule )
900 {
901 /* Allocate the segments for this module */
902
903 if (!NE_CreateAllSegments( pModule ))
904 return ERROR_NOT_ENOUGH_MEMORY; /* 8 */
905
906 /* Load the referenced DLLs */
907
908 if (!NE_LoadDLLs( pModule ))
909 return ERROR_FILE_NOT_FOUND; /* 2 */
910
911 /* Load the segments */
912
913 NE_LoadAllSegments( pModule );
914
915 /* Make sure the usage count is 1 on the first loading of */
916 /* the module, even if it contains circular DLL references */
917
918 pModule->count = 1;
919
920 return NE_GetInstance( pModule );
921 }
922
923 /**********************************************************************
924 * NE_LoadModule
925 *
926 * Load first instance of NE module. (Note: caller is responsible for
927 * ensuring the module isn't already loaded!)
928 *
929 * If the module turns out to be an executable module, only a
930 * handle to a module stub is returned; this needs to be initialized
931 * by calling NE_DoLoadModule later, in the context of the newly
932 * created process.
933 *
934 * If lib_only is TRUE, however, the module is perforce treated
935 * like a DLL module, even if it is an executable module.
936 *
937 */
938 static HINSTANCE16 NE_LoadModule( LPCSTR name, BOOL lib_only )
939 {
940 NE_MODULE *pModule;
941 HMODULE16 hModule;
942 HINSTANCE16 hInstance;
943 HFILE16 hFile;
944 OFSTRUCT ofs;
945 HANDLE mapping;
946 void *ptr;
947 MEMORY_BASIC_INFORMATION info;
948
949 /* Open file */
950 if ((hFile = OpenFile16( name, &ofs, OF_READ|OF_SHARE_DENY_WRITE )) == HFILE_ERROR16)
951 return ERROR_FILE_NOT_FOUND;
952
953 mapping = CreateFileMappingW( DosFileHandleToWin32Handle(hFile), NULL, PAGE_WRITECOPY, 0, 0, NULL );
954 _lclose16( hFile );
955 if (!mapping) return ERROR_BAD_FORMAT;
956
957 ptr = MapViewOfFile( mapping, FILE_MAP_COPY, 0, 0, 0 );
958 CloseHandle( mapping );
959 if (!ptr) return ERROR_BAD_FORMAT;
960
961 VirtualQuery( ptr, &info, sizeof(info) );
962 hModule = build_module( ptr, info.RegionSize, ofs.szPathName );
963
964 if (hModule < 32)
965 {
966 UnmapViewOfFile( ptr );
967 return hModule;
968 }
969
970 SNOOP16_RegisterDLL( hModule, ofs.szPathName );
971 NE_InitResourceHandler( hModule );
972
973 pModule = NE_GetPtr( hModule );
974
975 if ( !lib_only && !( pModule->ne_flags & NE_FFLAGS_LIBMODULE ) )
976 return hModule;
977
978 hInstance = NE_DoLoadModule( pModule );
979 if ( hInstance < 32 )
980 {
981 /* cleanup ... */
982 NE_FreeModule( hModule, 0 );
983 }
984
985 return hInstance;
986 }
987
988
989 /***********************************************************************
990 * NE_DoLoadBuiltinModule
991 *
992 * Load a built-in Win16 module. Helper function for NE_LoadBuiltinModule.
993 */
994 static HMODULE16 NE_DoLoadBuiltinModule( const IMAGE_DOS_HEADER *mz_header, const char *file_name,
995 HMODULE owner32 )
996 {
997 NE_MODULE *pModule;
998 HMODULE16 hModule;
999 HINSTANCE16 hInstance;
1000 OSVERSIONINFOW versionInfo;
1001 SIZE_T mapping_size = ~0UL; /* assume builtins don't contain invalid offsets... */
1002
1003 hModule = build_module( mz_header, mapping_size, file_name );
1004 if (hModule < 32) return hModule;
1005 pModule = GlobalLock16( hModule );
1006 pModule->ne_flags |= NE_FFLAGS_BUILTIN;
1007 pModule->owner32 = owner32;
1008
1009 /* fake the expected version the module should have according to the current Windows version */
1010 versionInfo.dwOSVersionInfoSize = sizeof(versionInfo);
1011 if (GetVersionExW( &versionInfo ))
1012 pModule->ne_expver = MAKEWORD( versionInfo.dwMinorVersion, versionInfo.dwMajorVersion );
1013
1014 hInstance = NE_DoLoadModule( pModule );
1015 if (hInstance < 32) NE_FreeModule( hModule, 0 );
1016
1017 NE_InitResourceHandler( hModule );
1018
1019 if (pModule->ne_heap)
1020 {
1021 SEGTABLEENTRY *pSeg = NE_SEG_TABLE( pModule ) + pModule->ne_autodata - 1;
1022 unsigned int size = pSeg->minsize + pModule->ne_heap;
1023 if (size > 0xfffe) size = 0xfffe;
1024 LocalInit16( GlobalHandleToSel16(pSeg->hSeg), pSeg->minsize, size );
1025 }
1026
1027 patch_code_segment( pModule );
1028
1029 return hInstance;
1030 }
1031
1032
1033 /**********************************************************************
1034 * MODULE_LoadModule16
1035 *
1036 * Load a NE module in the order of the loadorder specification.
1037 * The caller is responsible that the module is not loaded already.
1038 *
1039 */
1040 static HINSTANCE16 MODULE_LoadModule16( LPCSTR libname, BOOL implicit, BOOL lib_only )
1041 {
1042 HINSTANCE16 hinst = 2;
1043 HMODULE16 hModule;
1044 HMODULE mod32 = 0;
1045 NE_MODULE *pModule;
1046 const IMAGE_DOS_HEADER *descr = NULL;
1047 const char *file_name = NULL;
1048 char dllname[20], owner[20], *p;
1049 const char *basename;
1050 int owner_exists = FALSE;
1051
1052 /* strip path information */
1053
1054 basename = libname;
1055 if (basename[0] && basename[1] == ':') basename += 2; /* strip drive specification */
1056 if ((p = strrchr( basename, '\\' ))) basename = p + 1;
1057 if ((p = strrchr( basename, '/' ))) basename = p + 1;
1058
1059 if (strlen(basename) < sizeof(dllname)-4)
1060 {
1061 strcpy( dllname, basename );
1062 p = strrchr( dllname, '.' );
1063 if (!p) strcat( dllname, ".dll" );
1064 for (p = dllname; *p; p++) if (*p >= 'A' && *p <= 'Z') *p += 32;
1065
1066 if (wine_dll_get_owner( dllname, owner, sizeof(owner), &owner_exists ) != -1)
1067 {
1068 mod32 = LoadLibraryA( owner );
1069 if (mod32)
1070 {
1071 if (!(descr = find_dll_descr( dllname, &file_name )))
1072 {
1073 FreeLibrary( mod32 );
1074 owner_exists = 0;
1075 }
1076 /* loading the 32-bit library can have the side effect of loading the module */
1077 /* if so, simply incr the ref count and return the module */
1078 if ((hModule = GetModuleHandle16( libname )))
1079 {
1080 TRACE( "module %s already loaded by owner\n", libname );
1081 pModule = NE_GetPtr( hModule );
1082 if (pModule) pModule->count++;
1083 FreeLibrary( mod32 );
1084 return hModule;
1085 }
1086 }
1087 else
1088 {
1089 /* it's probably disabled by the load order config */
1090 WARN( "couldn't load owner %s for 16-bit dll %s\n", owner, dllname );
1091 return ERROR_FILE_NOT_FOUND;
1092 }
1093 }
1094 }
1095
1096 if (descr)
1097 {
1098 TRACE("Trying built-in '%s'\n", libname);
1099 hinst = NE_DoLoadBuiltinModule( descr, file_name, mod32 );
1100 if (hinst > 32) TRACE_(loaddll)("Loaded module %s : builtin\n", debugstr_a(file_name));
1101 }
1102 else
1103 {
1104 TRACE("Trying native dll '%s'\n", libname);
1105 hinst = NE_LoadModule(libname, lib_only);
1106 if (hinst > 32) TRACE_(loaddll)("Loaded module %s : native\n", debugstr_a(libname));
1107 if (hinst == ERROR_FILE_NOT_FOUND && owner_exists) hinst = 21; /* win32 module */
1108 }
1109
1110 if (hinst > 32 && !implicit)
1111 {
1112 hModule = GetModuleHandle16(libname);
1113 if(!hModule)
1114 {
1115 ERR("Serious trouble. Just loaded module '%s' (hinst=0x%04x), but can't get module handle. Filename too long ?\n",
1116 libname, hinst);
1117 return ERROR_INVALID_HANDLE;
1118 }
1119
1120 pModule = NE_GetPtr(hModule);
1121 if(!pModule)
1122 {
1123 ERR("Serious trouble. Just loaded module '%s' (hinst=0x%04x), but can't get NE_MODULE pointer\n",
1124 libname, hinst);
1125 return ERROR_INVALID_HANDLE;
1126 }
1127
1128 TRACE("Loaded module '%s' at 0x%04x.\n", libname, hinst);
1129
1130 /*
1131 * Call initialization routines for all loaded DLLs. Note that
1132 * when we load implicitly linked DLLs this will be done by InitTask().
1133 */
1134 if(pModule->ne_flags & NE_FFLAGS_LIBMODULE)
1135 {
1136 NE_InitializeDLLs(hModule);
1137 NE_DllProcessAttach(hModule);
1138 }
1139 }
1140 return hinst; /* The last error that occurred */
1141 }
1142
1143
1144 /**********************************************************************
1145 * NE_CreateThread
1146 *
1147 * Create the thread for a 16-bit module.
1148 */
1149 static HINSTANCE16 NE_CreateThread( NE_MODULE *pModule, WORD cmdShow, LPCSTR cmdline )
1150 {
1151 HANDLE hThread;
1152 TDB *pTask;
1153 HTASK16 hTask;
1154 HINSTANCE16 instance = 0;
1155
1156 if (!(hTask = TASK_SpawnTask( pModule, cmdShow, cmdline + 1, *cmdline, &hThread )))
1157 return 0;
1158
1159 /* Post event to start the task */
1160 PostEvent16( hTask );
1161
1162 /* Wait until we get the instance handle */
1163 do
1164 {
1165 DirectedYield16( hTask );
1166 if (!IsTask16( hTask )) /* thread has died */
1167 {
1168 DWORD exit_code;
1169 WaitForSingleObject( hThread, INFINITE );
1170 GetExitCodeThread( hThread, &exit_code );
1171 CloseHandle( hThread );
1172 return exit_code;
1173 }
1174 if (!(pTask = GlobalLock16( hTask ))) break;
1175 instance = pTask->hInstance;
1176 GlobalUnlock16( hTask );
1177 } while (!instance);
1178
1179 CloseHandle( hThread );
1180 return instance;
1181 }
1182
1183
1184 /**********************************************************************
1185 * LoadModule (KERNEL.45)
1186 */
1187 HINSTANCE16 WINAPI LoadModule16( LPCSTR name, LPVOID paramBlock )
1188 {
1189 BOOL lib_only = !paramBlock || (paramBlock == (LPVOID)-1);
1190 LOADPARAMS16 *params;
1191 HMODULE16 hModule;
1192 NE_MODULE *pModule;
1193 LPSTR cmdline;
1194 WORD cmdShow = 1; /* SW_SHOWNORMAL but we don't want to include winuser.h here */
1195
1196 if (name == NULL) return 0;
1197
1198 TRACE("name %s, paramBlock %p\n", name, paramBlock);
1199
1200 /* Load module */
1201
1202 if ( (hModule = NE_GetModuleByFilename(name) ) != 0 )
1203 {
1204 /* Special case: second instance of an already loaded NE module */
1205
1206 if ( !( pModule = NE_GetPtr( hModule ) ) ) return ERROR_BAD_FORMAT;
1207 if ( pModule->module32 ) return (HINSTANCE16)21;
1208
1209 /* Increment refcount */
1210
1211 pModule->count++;
1212 }
1213 else
1214 {
1215 /* Main case: load first instance of NE module */
1216
1217 if ( (hModule = MODULE_LoadModule16( name, FALSE, lib_only )) < 32 )
1218 return hModule;
1219
1220 if ( !(pModule = NE_GetPtr( hModule )) )
1221 return ERROR_BAD_FORMAT;
1222 }
1223
1224 /* If library module, we just retrieve the instance handle */
1225
1226 if ( ( pModule->ne_flags & NE_FFLAGS_LIBMODULE ) || lib_only )
1227 return NE_GetInstance( pModule );
1228
1229 /*
1230 * At this point, we need to create a new process.
1231 *
1232 * pModule points either to an already loaded module, whose refcount
1233 * has already been incremented (to avoid having the module vanish
1234 * in the meantime), or else to a stub module which contains only header
1235 * information.
1236 */
1237 params = (LOADPARAMS16 *)paramBlock;
1238 if (params->showCmd)
1239 cmdShow = ((WORD *)MapSL( params->showCmd ))[1];
1240 cmdline = MapSL( params->cmdLine );
1241 return NE_CreateThread( pModule, cmdShow, cmdline );
1242 }
1243
1244
1245 /**********************************************************************
1246 * NE_StartTask
1247 *
1248 * Startup code for a new 16-bit task.
1249 */
1250 DWORD NE_StartTask(void)
1251 {
1252 TDB *pTask = TASK_GetCurrent();
1253 NE_MODULE *pModule = NE_GetPtr( pTask->hModule );
1254 HINSTANCE16 hInstance, hPrevInstance;
1255 SEGTABLEENTRY *pSegTable = NE_SEG_TABLE( pModule );
1256 WORD sp;
1257
1258 if ( pModule->count > 0 )
1259 {
1260 /* Second instance of an already loaded NE module */
1261 /* Note that the refcount was already incremented by the parent */
1262
1263 hPrevInstance = NE_GetInstance( pModule );
1264
1265 if ( pModule->ne_autodata )
1266 if ( NE_CreateSegment( pModule, pModule->ne_autodata ) )
1267 NE_LoadSegment( pModule, pModule->ne_autodata );
1268
1269 hInstance = NE_GetInstance( pModule );
1270 TRACE("created second instance %04x[%d] of instance %04x.\n", hInstance, pModule->ne_autodata, hPrevInstance);
1271
1272 }
1273 else
1274 {
1275 /* Load first instance of NE module */
1276
1277 pModule->ne_flags |= NE_FFLAGS_GUI; /* FIXME: is this necessary? */
1278
1279 hInstance = NE_DoLoadModule( pModule );
1280 hPrevInstance = 0;
1281 }
1282
1283 if ( hInstance >= 32 )
1284 {
1285 CONTEXT86 context;
1286
1287 /* Enter instance handles into task struct */
1288
1289 pTask->hInstance = hInstance;
1290 pTask->hPrevInstance = hPrevInstance;
1291
1292 /* Use DGROUP for 16-bit stack */
1293
1294 if (!(sp = OFFSETOF(pModule->ne_sssp)))
1295 sp = pSegTable[SELECTOROF(pModule->ne_sssp)-1].minsize + pModule->ne_stack;
1296 sp &= ~1;
1297 sp -= sizeof(STACK16FRAME);
1298 NtCurrentTeb()->WOW32Reserved = (void *)MAKESEGPTR( GlobalHandleToSel16(hInstance), sp );
1299
1300 /* Registers at initialization must be:
1301 * ax zero
1302 * bx stack size in bytes
1303 * cx heap size in bytes
1304 * si previous app instance
1305 * di current app instance
1306 * bp zero
1307 * es selector to the PSP
1308 * ds dgroup of the application
1309 * ss stack selector
1310 * sp top of the stack
1311 */
1312 memset( &context, 0, sizeof(context) );
1313 context.SegCs = GlobalHandleToSel16(pSegTable[SELECTOROF(pModule->ne_csip) - 1].hSeg);
1314 context.SegDs = GlobalHandleToSel16(pTask->hInstance);
1315 context.SegEs = pTask->hPDB;
1316 context.SegFs = wine_get_fs();
1317 context.SegGs = wine_get_gs();
1318 context.Eip = OFFSETOF(pModule->ne_csip);
1319 context.Ebx = pModule->ne_stack;
1320 context.Ecx = pModule->ne_heap;
1321 context.Edi = pTask->hInstance;
1322 context.Esi = pTask->hPrevInstance;
1323
1324 /* Now call 16-bit entry point */
1325
1326 TRACE("Starting main program: cs:ip=%04x:%04x ds=%04x ss:sp=%04x:%04x\n",
1327 context.SegCs, context.Eip, context.SegDs,
1328 SELECTOROF(NtCurrentTeb()->WOW32Reserved),
1329 OFFSETOF(NtCurrentTeb()->WOW32Reserved) );
1330
1331 WOWCallback16Ex( 0, WCB16_REGS, 0, NULL, (DWORD *)&context );
1332 ExitThread( LOWORD(context.Eax) );
1333 }
1334 return hInstance; /* error code */
1335 }
1336
1337 /***********************************************************************
1338 * LoadLibrary (KERNEL.95)
1339 * LoadLibrary16 (KERNEL32.35)
1340 */
1341 HINSTANCE16 WINAPI LoadLibrary16( LPCSTR libname )
1342 {
1343 return LoadModule16(libname, (LPVOID)-1 );
1344 }
1345
1346
1347 /**********************************************************************
1348 * MODULE_CallWEP
1349 *
1350 * Call a DLL's WEP, allowing it to shut down.
1351 * FIXME: we always pass the WEP WEP_FREE_DLL, never WEP_SYSTEM_EXIT
1352 */
1353 static BOOL16 MODULE_CallWEP( HMODULE16 hModule )
1354 {
1355 BOOL16 ret;
1356 FARPROC16 WEP = GetProcAddress16( hModule, "WEP" );
1357 if (!WEP) return FALSE;
1358
1359 __TRY
1360 {
1361 WORD args[1];
1362 DWORD dwRet;
1363
1364 args[0] = WEP_FREE_DLL;
1365 WOWCallback16Ex( (DWORD)WEP, WCB16_PASCAL, sizeof(args), args, &dwRet );
1366 ret = LOWORD(dwRet);
1367 }
1368 __EXCEPT_PAGE_FAULT
1369 {
1370 WARN("Page fault\n");
1371 ret = 0;
1372 }
1373 __ENDTRY
1374
1375 return ret;
1376 }
1377
1378
1379 /**********************************************************************
1380 * NE_FreeModule
1381 *
1382 * Implementation of FreeModule16().
1383 */
1384 static BOOL16 NE_FreeModule( HMODULE16 hModule, BOOL call_wep )
1385 {
1386 HMODULE16 *hPrevModule;
1387 NE_MODULE *pModule;
1388 HMODULE16 *pModRef;
1389 int i;
1390
1391 if (!(pModule = NE_GetPtr( hModule ))) return FALSE;
1392 hModule = pModule->self;
1393
1394 TRACE("%04x count %d\n", hModule, pModule->count );
1395
1396 if (((INT16)(--pModule->count)) > 0 ) return TRUE;
1397 else pModule->count = 0;
1398
1399 if (call_wep && !(pModule->ne_flags & NE_FFLAGS_WIN32))
1400 {
1401 /* Free the objects owned by the DLL module */
1402 NE_CallUserSignalProc( hModule, USIG16_DLL_UNLOAD );
1403
1404 if (pModule->ne_flags & NE_FFLAGS_LIBMODULE)
1405 MODULE_CallWEP( hModule );
1406 else
1407 call_wep = FALSE; /* We are freeing a task -> no more WEPs */
1408 }
1409
1410 TRACE_(loaddll)("Unloaded module %s : %s\n", debugstr_a(NE_MODULE_NAME(pModule)),
1411 (pModule->ne_flags & NE_FFLAGS_BUILTIN) ? "builtin" : "native");
1412
1413 /* Clear magic number just in case */
1414
1415 pModule->ne_magic = pModule->self = 0;
1416 if (pModule->owner32) FreeLibrary( pModule->owner32 );
1417 else if (pModule->mapping) UnmapViewOfFile( pModule->mapping );
1418
1419 /* Remove it from the linked list */
1420
1421 hPrevModule = &hFirstModule;
1422 while (*hPrevModule && (*hPrevModule != hModule))
1423 {
1424 hPrevModule = &(NE_GetPtr( *hPrevModule ))->next;
1425 }
1426 if (*hPrevModule) *hPrevModule = pModule->next;
1427
1428 /* Free the referenced modules */
1429
1430 pModRef = (HMODULE16*)((char *)pModule + pModule->ne_modtab);
1431 for (i = 0; i < pModule->ne_cmod; i++, pModRef++)
1432 {
1433 NE_FreeModule( *pModRef, call_wep );
1434 }
1435
1436 /* Free the module storage */
1437
1438 GlobalFreeAll16( hModule );
1439 return TRUE;
1440 }
1441
1442
1443 /**********************************************************************
1444 * FreeModule (KERNEL.46)
1445 */
1446 BOOL16 WINAPI FreeModule16( HMODULE16 hModule )
1447 {
1448 return NE_FreeModule( hModule, TRUE );
1449 }
1450
1451
1452 /***********************************************************************
1453 * FreeLibrary (KERNEL.96)
1454 * FreeLibrary16 (KERNEL32.36)
1455 */
1456 void WINAPI FreeLibrary16( HINSTANCE16 handle )
1457 {
1458 TRACE("%04x\n", handle );
1459 FreeModule16( handle );
1460 }
1461
1462
1463 /***********************************************************************
1464 * GetModuleHandle16 (KERNEL32.@)
1465 */
1466 HMODULE16 WINAPI GetModuleHandle16( LPCSTR name )
1467 {
1468 HMODULE16 hModule = hFirstModule;
1469 LPSTR s;
1470 BYTE len, *name_table;
1471 char tmpstr[MAX_PATH];
1472 NE_MODULE *pModule;
1473
1474 TRACE("(%s)\n", name);
1475
1476 if (!HIWORD(name)) return GetExePtr(LOWORD(name));
1477
1478 len = strlen(name);
1479 if (!len) return 0;
1480
1481 lstrcpynA(tmpstr, name, sizeof(tmpstr));
1482
1483 /* If 'name' matches exactly the module name of a module:
1484 * Return its handle.
1485 */
1486 for (hModule = hFirstModule; hModule ; hModule = pModule->next)
1487 {
1488 pModule = NE_GetPtr( hModule );
1489 if (!pModule) break;
1490 if (pModule->ne_flags & NE_FFLAGS_WIN32) continue;
1491
1492 name_table = (BYTE *)pModule + pModule->ne_restab;
1493 if ((*name_table == len) && !strncmp(name, (char*) name_table+1, len))
1494 return hModule;
1495 }
1496
1497 /* If uppercased 'name' matches exactly the module name of a module:
1498 * Return its handle
1499 */
1500 for (s = tmpstr; *s; s++) *s = RtlUpperChar(*s);
1501
1502 for (hModule = hFirstModule; hModule ; hModule = pModule->next)
1503 {
1504 pModule = NE_GetPtr( hModule );
1505 if (!pModule) break;
1506 if (pModule->ne_flags & NE_FFLAGS_WIN32) continue;
1507
1508 name_table = (BYTE *)pModule + pModule->ne_restab;
1509 /* FIXME: the strncasecmp is WRONG. It should not be case insensitive,
1510 * but case sensitive! (Unfortunately Winword 6 and subdlls have
1511 * lowercased module names, but try to load uppercase DLLs, so this
1512 * 'i' compare is just a quickfix until the loader handles that
1513 * correctly. -MM 990705
1514 */
1515 if ((*name_table == len) && !NE_strncasecmp(tmpstr, (const char*)name_table+1, len))
1516 return hModule;
1517 }
1518
1519 /* If the base filename of 'name' matches the base filename of the module
1520 * filename of some module (case-insensitive compare):
1521 * Return its handle.
1522 */
1523
1524 /* basename: search backwards in passed name to \ / or : */
1525 s = tmpstr + strlen(tmpstr);
1526 while (s > tmpstr)
1527 {
1528 if (s[-1]=='/' || s[-1]=='\\' || s[-1]==':')
1529 break;
1530 s--;
1531 }
1532
1533 /* search this in loaded filename list */
1534 for (hModule = hFirstModule; hModule ; hModule = pModule->next)
1535 {
1536 char *loadedfn;
1537 OFSTRUCT *ofs;
1538
1539 pModule = NE_GetPtr( hModule );
1540 if (!pModule) break;
1541 if (!pModule->fileinfo) continue;
1542 if (pModule->ne_flags & NE_FFLAGS_WIN32) continue;
1543
1544 ofs = (OFSTRUCT*)((BYTE *)pModule + pModule->fileinfo);
1545 loadedfn = ((char*)ofs->szPathName) + strlen(ofs->szPathName);
1546 /* basename: search backwards in pathname to \ / or : */
1547 while (loadedfn > (char*)ofs->szPathName)
1548 {
1549 if (loadedfn[-1]=='/' || loadedfn[-1]=='\\' || loadedfn[-1]==':')
1550 break;
1551 loadedfn--;
1552 }
1553 /* case insensitive compare ... */
1554 if (!NE_strcasecmp(loadedfn, s))
1555 return hModule;
1556 }
1557 return 0;
1558 }
1559
1560
1561 /**********************************************************************
1562 * GetModuleName (KERNEL.27)
1563 */
1564 BOOL16 WINAPI GetModuleName16( HINSTANCE16 hinst, LPSTR buf, INT16 count )
1565 {
1566 NE_MODULE *pModule;
1567 BYTE *p;
1568
1569 if (!(pModule = NE_GetPtr( hinst ))) return FALSE;
1570 p = (BYTE *)pModule + pModule->ne_restab;
1571 if (count > *p) count = *p + 1;
1572 if (count > 0)
1573 {
1574 memcpy( buf, p + 1, count - 1 );
1575 buf[count-1] = '\0';
1576 }
1577 return TRUE;
1578 }
1579
1580
1581 /**********************************************************************
1582 * GetModuleFileName (KERNEL.49)
1583 *
1584 * Comment: see GetModuleFileNameA
1585 *
1586 * Even if invoked by second instance of a program,
1587 * it still returns path of first one.
1588 */
1589 INT16 WINAPI GetModuleFileName16( HINSTANCE16 hModule, LPSTR lpFileName,
1590 INT16 nSize )
1591 {
1592 NE_MODULE *pModule;
1593
1594 /* Win95 does not query hModule if set to 0 !
1595 * Is this wrong or maybe Win3.1 only ? */
1596 if (!hModule) hModule = GetCurrentTask();
1597
1598 if (!(pModule = NE_GetPtr( hModule ))) return 0;
1599 lstrcpynA( lpFileName, NE_MODULE_NAME(pModule), nSize );
1600 if (pModule->ne_expver < 0x400)
1601 GetShortPathNameA(NE_MODULE_NAME(pModule), lpFileName, nSize);
1602 TRACE("%04x -> '%s'\n", hModule, lpFileName );
1603 return strlen(lpFileName);
1604 }
1605
1606
1607 /**********************************************************************
1608 * GetModuleUsage (KERNEL.48)
1609 */
1610 INT16 WINAPI GetModuleUsage16( HINSTANCE16 hModule )
1611 {
1612 NE_MODULE *pModule = NE_GetPtr( hModule );
1613 return pModule ? pModule->count : 0;
1614 }
1615
1616
1617 /**********************************************************************
1618 * GetExpWinVer (KERNEL.167)
1619 */
1620 WORD WINAPI GetExpWinVer16( HMODULE16 hModule )
1621 {
1622 NE_MODULE *pModule = NE_GetPtr( hModule );
1623 if ( !pModule ) return 0;
1624 return pModule->ne_expver;
1625 }
1626
1627
1628 /***********************************************************************
1629 * WinExec (KERNEL.166)
1630 */
1631 HINSTANCE16 WINAPI WinExec16( LPCSTR lpCmdLine, UINT16 nCmdShow )
1632 {
1633 LPCSTR p, args = NULL;
1634 LPCSTR name_beg, name_end;
1635 LPSTR name, cmdline;
1636 int arglen;
1637 HINSTANCE16 ret;
1638 char buffer[MAX_PATH];
1639
1640 if (*lpCmdLine == '"') /* has to be only one and only at beginning ! */
1641 {
1642 name_beg = lpCmdLine+1;
1643 p = strchr ( lpCmdLine+1, '"' );
1644 if (p)
1645 {
1646 name_end = p;
1647 args = strchr ( p, ' ' );
1648 }
1649 else /* yes, even valid with trailing '"' missing */
1650 name_end = lpCmdLine+strlen(lpCmdLine);
1651 }
1652 else
1653 {
1654 name_beg = lpCmdLine;
1655 args = strchr( lpCmdLine, ' ' );
1656 name_end = args ? args : lpCmdLine+strlen(lpCmdLine);
1657 }
1658
1659 if ((name_beg == lpCmdLine) && (!args))
1660 { /* just use the original cmdline string as file name */
1661 name = (LPSTR)lpCmdLine;
1662 }
1663 else
1664 {
1665 if (!(name = HeapAlloc( GetProcessHeap(), 0, name_end - name_beg + 1 )))
1666 return ERROR_NOT_ENOUGH_MEMORY;
1667 memcpy( name, name_beg, name_end - name_beg );
1668 name[name_end - name_beg] = '\0';
1669 }
1670
1671 if (args)
1672 {
1673 args++;
1674 arglen = strlen(args);
1675 cmdline = HeapAlloc( GetProcessHeap(), 0, 2 + arglen );
1676 cmdline[0] = (BYTE)arglen;
1677 strcpy( cmdline + 1, args );
1678 }
1679 else
1680 {
1681 cmdline = HeapAlloc( GetProcessHeap(), 0, 2 );
1682 cmdline[0] = cmdline[1] = 0;
1683 }
1684
1685 TRACE("name: '%s', cmdline: '%.*s'\n", name, cmdline[0], &cmdline[1]);
1686
1687 if (SearchPathA( NULL, name, ".exe", sizeof(buffer), buffer, NULL ))
1688 {
1689 LOADPARAMS16 params;
1690 WORD showCmd[2];
1691 showCmd[0] = 2;
1692 showCmd[1] = nCmdShow;
1693
1694 params.hEnvironment = 0;
1695 params.cmdLine = MapLS( cmdline );
1696 params.showCmd = MapLS( showCmd );
1697 params.reserved = 0;
1698
1699 ret = LoadModule16( buffer, &params );
1700 UnMapLS( params.cmdLine );
1701 UnMapLS( params.showCmd );
1702 }
1703 else ret = GetLastError();
1704
1705 HeapFree( GetProcessHeap(), 0, cmdline );
1706 if (name != lpCmdLine) HeapFree( GetProcessHeap(), 0, name );
1707
1708 if (ret == 21 || ret == ERROR_BAD_FORMAT) /* 32-bit module or unknown executable*/
1709 {
1710 LOADPARAMS16 params;
1711 WORD showCmd[2];
1712 showCmd[0] = 2;
1713 showCmd[1] = nCmdShow;
1714
1715 arglen = strlen( lpCmdLine );
1716 cmdline = HeapAlloc( GetProcessHeap(), 0, arglen + 1 );
1717 cmdline[0] = (BYTE)arglen;
1718 memcpy( cmdline + 1, lpCmdLine, arglen );
1719
1720 params.hEnvironment = 0;
1721 params.cmdLine = MapLS( cmdline );
1722 params.showCmd = MapLS( showCmd );
1723 params.reserved = 0;
1724
1725 ret = LoadModule16( "winoldap.mod", &params );
1726 UnMapLS( params.cmdLine );
1727 UnMapLS( params.showCmd );
1728 }
1729 return ret;
1730 }
1731
1732 /***********************************************************************
1733 * GetProcAddress (KERNEL.50)
1734 */
1735 FARPROC16 WINAPI GetProcAddress16( HMODULE16 hModule, LPCSTR name )
1736 {
1737 WORD ordinal;
1738 FARPROC16 ret;
1739
1740 if (!hModule) hModule = GetCurrentTask();
1741 hModule = GetExePtr( hModule );
1742
1743 if (HIWORD(name) != 0)
1744 {
1745 ordinal = NE_GetOrdinal( hModule, name );
1746 TRACE("%04x '%s'\n", hModule, name );
1747 }
1748 else
1749 {
1750 ordinal = LOWORD(name);
1751 TRACE("%04x %04x\n", hModule, ordinal );
1752 }
1753 if (!ordinal) return (FARPROC16)0;
1754
1755 ret = NE_GetEntryPoint( hModule, ordinal );
1756
1757 TRACE("returning %p\n", ret );
1758 return ret;
1759 }
1760
1761
1762 /***************************************************************************
1763 * HasGPHandler (KERNEL.338)
1764 */
1765 SEGPTR WINAPI HasGPHandler16( SEGPTR address )
1766 {
1767 HMODULE16 hModule;
1768 int gpOrdinal;
1769 SEGPTR gpPtr;
1770 GPHANDLERDEF *gpHandler;
1771
1772 if ( (hModule = FarGetOwner16( SELECTOROF(address) )) != 0
1773 && (gpOrdinal = NE_GetOrdinal( hModule, "__GP" )) != 0
1774 && (gpPtr = (SEGPTR)NE_GetEntryPointEx( hModule, gpOrdinal, FALSE )) != 0
1775 && !IsBadReadPtr16( gpPtr, sizeof(GPHANDLERDEF) )
1776 && (gpHandler = MapSL( gpPtr )) != NULL )
1777 {
1778 while (gpHandler->selector)
1779 {
1780 if ( SELECTOROF(address) == gpHandler->selector
1781 && OFFSETOF(address) >= gpHandler->rangeStart
1782 && OFFSETOF(address) < gpHandler->rangeEnd )
1783 return MAKESEGPTR( gpHandler->selector, gpHandler->handler );
1784 gpHandler++;
1785 }
1786 }
1787
1788 return 0;
1789 }
1790
1791
1792 /**********************************************************************
1793 * GetModuleHandle (KERNEL.47)
1794 *
1795 * Find a module from a module name.
1796 *
1797 * NOTE: The current implementation works the same way the Windows 95 one
1798 * does. Do not try to 'fix' it, fix the callers.
1799 * + It does not do ANY extension handling (except that strange .EXE bit)!
1800 * + It does not care about paths, just about basenames. (same as Windows)
1801 *
1802 * RETURNS
1803 * LOWORD:
1804 * the win16 module handle if found
1805 * 0 if not
1806 * HIWORD (undocumented, see "Undocumented Windows", chapter 5):
1807 * Always hFirstModule
1808 */
1809 DWORD WINAPI WIN16_GetModuleHandle( SEGPTR name )
1810 {
1811 if (HIWORD(name) == 0)
1812 return MAKELONG(GetExePtr( (HINSTANCE16)name), hFirstModule );
1813 return MAKELONG(GetModuleHandle16( MapSL(name)), hFirstModule );
1814 }
1815
1816 /**********************************************************************
1817 * NE_GetModuleByFilename
1818 */
1819 static HMODULE16 NE_GetModuleByFilename( LPCSTR name )
1820 {
1821 HMODULE16 hModule;
1822 LPSTR s, p;
1823 BYTE len, *name_table;
1824 char tmpstr[MAX_PATH];
1825 NE_MODULE *pModule;
1826
1827 lstrcpynA(tmpstr, name, sizeof(tmpstr));
1828
1829 /* If the base filename of 'name' matches the base filename of the module
1830 * filename of some module (case-insensitive compare):
1831 * Return its handle.
1832 */
1833
1834 /* basename: search backwards in passed name to \ / or : */
1835 s = tmpstr + strlen(tmpstr);
1836 while (s > tmpstr)
1837 {
1838 if (s[-1]=='/' || s[-1]=='\\' || s[-1]==':')
1839 break;
1840 s--;
1841 }
1842
1843 /* search this in loaded filename list */
1844 for (hModule = hFirstModule; hModule ; hModule = pModule->next)
1845 {
1846 char *loadedfn;
1847 OFSTRUCT *ofs;
1848
1849 pModule = NE_GetPtr( hModule );
1850 if (!pModule) break;
1851 if (!pModule->fileinfo) continue;
1852 if (pModule->ne_flags & NE_FFLAGS_WIN32) continue;
1853
1854 ofs = (OFSTRUCT*)((BYTE *)pModule + pModule->fileinfo);
1855 loadedfn = ((char*)ofs->szPathName) + strlen(ofs->szPathName);
1856 /* basename: search backwards in pathname to \ / or : */
1857 while (loadedfn > (char*)ofs->szPathName)
1858 {
1859 if (loadedfn[-1]=='/' || loadedfn[-1]=='\\' || loadedfn[-1]==':')
1860 break;
1861 loadedfn--;
1862 }
1863 /* case insensitive compare ... */
1864 if (!NE_strcasecmp(loadedfn, s))
1865 return hModule;
1866 }
1867 /* If basename (without ext) matches the module name of a module:
1868 * Return its handle.
1869 */
1870
1871 if ( (p = strrchr( s, '.' )) != NULL ) *p = '\0';
1872 len = strlen(s);
1873
1874 for (hModule = hFirstModule; hModule ; hModule = pModule->next)
1875 {
1876 pModule = NE_GetPtr( hModule );
1877 if (!pModule) break;
1878 if (pModule->ne_flags & NE_FFLAGS_WIN32) continue;
1879
1880 name_table = (BYTE *)pModule + pModule->ne_restab;
1881 if ((*name_table == len) && !NE_strncasecmp(s, (const char*)name_table+1, len))
1882 return hModule;
1883 }
1884
1885 return 0;
1886 }
1887
1888 /***********************************************************************
1889 * GetProcAddress16 (KERNEL32.37)
1890 * Get procaddress in 16bit module from win32... (kernel32 undoc. ordinal func)
1891 */
1892 FARPROC16 WINAPI WIN32_GetProcAddress16( HMODULE hModule, LPCSTR name )
1893 {
1894 if (!hModule) return 0;
1895 if (HIWORD(hModule))
1896 {
1897 WARN("hModule is Win32 handle (%p)\n", hModule );
1898 return 0;
1899 }
1900 return GetProcAddress16( LOWORD(hModule), name );
1901 }
1902
1903 /**********************************************************************
1904 * ModuleFirst (TOOLHELP.59)
1905 */
1906 BOOL16 WINAPI ModuleFirst16( MODULEENTRY *lpme )
1907 {
1908 lpme->wNext = hFirstModule;
1909 return ModuleNext16( lpme );
1910 }
1911
1912
1913 /**********************************************************************
1914 * ModuleNext (TOOLHELP.60)
1915 */
1916 BOOL16 WINAPI ModuleNext16( MODULEENTRY *lpme )
1917 {
1918 NE_MODULE *pModule;
1919 char *name;
1920
1921 if (!lpme->wNext) return FALSE;
1922 if (!(pModule = NE_GetPtr( lpme->wNext ))) return FALSE;
1923 name = (char *)pModule + pModule->ne_restab;
1924 memcpy( lpme->szModule, name + 1, min(*name, MAX_MODULE_NAME) );
1925 lpme->szModule[min(*name, MAX_MODULE_NAME)] = '\0';
1926 lpme->hModule = lpme->wNext;
1927 lpme->wcUsage = pModule->count;
1928 lstrcpynA( lpme->szExePath, NE_MODULE_NAME(pModule), sizeof(lpme->szExePath) );
1929 lpme->wNext = pModule->next;
1930 return TRUE;
1931 }
1932
1933
1934 /**********************************************************************
1935 * ModuleFindName (TOOLHELP.61)
1936 */
1937 BOOL16 WINAPI ModuleFindName16( MODULEENTRY *lpme, LPCSTR name )
1938 {
1939 lpme->wNext = GetModuleHandle16( name );
1940 return ModuleNext16( lpme );
1941 }
1942
1943
1944 /**********************************************************************
1945 * ModuleFindHandle (TOOLHELP.62)
1946 */
1947 BOOL16 WINAPI ModuleFindHandle16( MODULEENTRY *lpme, HMODULE16 hModule )
1948 {
1949 hModule = GetExePtr( hModule );
1950 lpme->wNext = hModule;
1951 return ModuleNext16( lpme );
1952 }
1953
1954
1955 /***************************************************************************
1956 * IsRomModule (KERNEL.323)
1957 */
1958 BOOL16 WINAPI IsRomModule16( HMODULE16 unused )
1959 {
1960 return FALSE;
1961 }
1962
1963 /***************************************************************************
1964 * IsRomFile (KERNEL.326)
1965 */
1966 BOOL16 WINAPI IsRomFile16( HFILE16 unused )
1967 {
1968 return FALSE;
1969 }
1970
1971 /***********************************************************************
1972 * create_dummy_module
1973 *
1974 * Create a dummy NE module for Win32 or Winelib.
1975 */
1976 static HMODULE16 create_dummy_module( HMODULE module32 )
1977 {
1978 HMODULE16 hModule;
1979 NE_MODULE *pModule;
1980 SEGTABLEENTRY *pSegment;
1981 char *pStr,*s;
1982 unsigned int len;
1983 const char* basename;
1984 OFSTRUCT *ofs;
1985 int of_size, size;
1986 char filename[MAX_PATH];
1987 IMAGE_NT_HEADERS *nt = RtlImageNtHeader( module32 );
1988
1989 if (!nt) return ERROR_BAD_FORMAT;
1990
1991 /* Extract base filename */
1992 len = GetModuleFileNameA( module32, filename, sizeof(filename) );
1993 if (!len || len >= sizeof(filename)) return ERROR_BAD_FORMAT;
1994 basename = strrchr(filename, '\\');
1995 if (!basename) basename = filename;
1996 else basename++;
1997 len = strlen(basename);
1998 if ((s = strchr(basename, '.'))) len = s - basename;
1999
2000 /* Allocate module */
2001 of_size = sizeof(OFSTRUCT) - sizeof(ofs->szPathName)
2002 + strlen(filename) + 1;
2003 size = sizeof(NE_MODULE) +
2004 /* loaded file info */
2005 ((of_size + 3) & ~3) +
2006 /* segment table: DS,CS */
2007 2 * sizeof(SEGTABLEENTRY) +
2008 /* name table */
2009 len + 2 +
2010 /* several empty tables */
2011 8;
2012
2013 hModule = GlobalAlloc16( GMEM_MOVEABLE | GMEM_ZEROINIT, size );
2014 if (!hModule) return ERROR_BAD_FORMAT;
2015
2016 FarSetOwner16( hModule, hModule );
2017 pModule = (NE_MODULE *)GlobalLock16( hModule );
2018
2019 /* Set all used entries */
2020 pModule->ne_magic = IMAGE_OS2_SIGNATURE;
2021 pModule->count = 1;
2022 pModule->next = 0;
2023 pModule->ne_flags = NE_FFLAGS_WIN32;
2024 pModule->ne_autodata = 0;
2025 pModule->ne_sssp = MAKESEGPTR( 0, 1 );
2026 pModule->ne_csip = MAKESEGPTR( 0, 2 );
2027 pModule->ne_heap = 0;
2028 pModule->ne_stack = 0;
2029 pModule->ne_cseg = 2;
2030 pModule->ne_cmod = 0;
2031 pModule->ne_cbnrestab = 0;
2032 pModule->fileinfo = sizeof(NE_MODULE);
2033 pModule->ne_exetyp = NE_OSFLAGS_WINDOWS;
2034 pModule->self = hModule;
2035 pModule->module32 = module32;
2036
2037 /* Set version and flags */
2038 pModule->ne_expver = ((nt->OptionalHeader.MajorSubsystemVersion & 0xff) << 8 ) |
2039 (nt->OptionalHeader.MinorSubsystemVersion & 0xff);
2040 if (nt->FileHeader.Characteristics & IMAGE_FILE_DLL)
2041 pModule->ne_flags |= NE_FFLAGS_LIBMODULE | NE_FFLAGS_SINGLEDATA;
2042
2043 /* Set loaded file information */
2044 ofs = (OFSTRUCT *)(pModule + 1);
2045 memset( ofs, 0, of_size );
2046 ofs->cBytes = of_size < 256 ? of_size : 255; /* FIXME */
2047 strcpy( ofs->szPathName, filename );
2048
2049 pSegment = (SEGTABLEENTRY*)((char*)(pModule + 1) + ((of_size + 3) & ~3));
2050 pModule->ne_segtab = (char *)pSegment - (char *)pModule;
2051 /* Data segment */
2052 pSegment->size = 0;
2053 pSegment->flags = NE_SEGFLAGS_DATA;
2054 pSegment->minsize = 0x1000;
2055 pSegment++;
2056 /* Code segment */
2057 pSegment->flags = 0;
2058 pSegment++;
2059
2060 /* Module name */
2061 pStr = (char *)pSegment;
2062 pModule->ne_restab = pStr - (char *)pModule;
2063 assert(len<256);
2064 *pStr = len;
2065 lstrcpynA( pStr+1, basename, len+1 );
2066 pStr += len+2;
2067
2068 /* All tables zero terminated */
2069 pModule->ne_rsrctab = pModule->ne_imptab = pModule->ne_enttab = pStr - (char *)pModule;
2070
2071 NE_RegisterModule( pModule );
2072 pModule->owner32 = LoadLibraryA( filename ); /* increment the ref count of the 32-bit module */
2073 return hModule;
2074 }
2075
2076 /***********************************************************************
2077 * PrivateLoadLibrary (KERNEL32.@)
2078 *
2079 * FIXME: rough guesswork, don't know what "Private" means
2080 */
2081 HINSTANCE16 WINAPI PrivateLoadLibrary(LPCSTR libname)
2082 {
2083 return LoadLibrary16(libname);
2084 }
2085
2086 /***********************************************************************
2087 * PrivateFreeLibrary (KERNEL32.@)
2088 *
2089 * FIXME: rough guesswork, don't know what "Private" means
2090 */
2091 void WINAPI PrivateFreeLibrary(HINSTANCE16 handle)
2092 {
2093 FreeLibrary16(handle);
2094 }
2095
2096 /***********************************************************************
2097 * LoadLibrary32 (KERNEL.452)
2098 * LoadSystemLibrary32 (KERNEL.482)
2099 */
2100 HMODULE WINAPI LoadLibrary32_16( LPCSTR libname )
2101 {
2102 HMODULE hModule;
2103 DWORD count;
2104
2105 ReleaseThunkLock( &count );
2106 hModule = LoadLibraryA( libname );
2107 RestoreThunkLock( count );
2108 return hModule;
2109 }
2110
2111 /***************************************************************************
2112 * MapHModuleLS (KERNEL32.@)
2113 */
2114 HMODULE16 WINAPI MapHModuleLS(HMODULE hmod)
2115 {
2116 HMODULE16 ret;
2117 NE_MODULE *pModule;
2118
2119 if (!hmod)
2120 return TASK_GetCurrent()->hInstance;
2121 if (!HIWORD(hmod))
2122 return LOWORD(hmod); /* we already have a 16 bit module handle */
2123 pModule = (NE_MODULE*)GlobalLock16(hFirstModule);
2124 while (pModule) {
2125 if (pModule->module32 == hmod)
2126 return pModule->self;
2127 pModule = (NE_MODULE*)GlobalLock16(pModule->next);
2128 }
2129 if ((ret = create_dummy_module( hmod )) < 32)
2130 {
2131 SetLastError(ret);
2132 ret = 0;
2133 }
2134 return ret;
2135 }
2136
2137 /***************************************************************************
2138 * MapHModuleSL (KERNEL32.@)
2139 */
2140 HMODULE WINAPI MapHModuleSL(HMODULE16 hmod)
2141 {
2142 NE_MODULE *pModule;
2143
2144 if (!hmod) {
2145 TDB *pTask = TASK_GetCurrent();
2146 hmod = pTask->hModule;
2147 }
2148 pModule = (NE_MODULE*)GlobalLock16(hmod);
2149 if ((pModule->ne_magic != IMAGE_OS2_SIGNATURE) || !(pModule->ne_flags & NE_FFLAGS_WIN32))
2150 return 0;
2151 return pModule->module32;
2152 }
2153
2154 /***************************************************************************
2155 * MapHInstLS (KERNEL.472)
2156 */
2157 void WINAPI MapHInstLS16( CONTEXT86 *context )
2158 {
2159 context->Eax = MapHModuleLS( (HMODULE)context->Eax );
2160 }
2161
2162 /***************************************************************************
2163 * MapHInstSL (KERNEL.473)
2164 */
2165 void WINAPI MapHInstSL16( CONTEXT86 *context )
2166 {
2167 context->Eax = (DWORD)MapHModuleSL( context->Eax );
2168 }
2169
2170 #ifdef __i386__
2171
2172 /***************************************************************************
2173 * MapHInstLS (KERNEL32.@)
2174 */
2175 __ASM_GLOBAL_FUNC( MapHInstLS,
2176 "pushl %eax\n\t"
2177 "call " __ASM_NAME("MapHModuleLS") "\n\t"
2178 "ret" )
2179
2180 /***************************************************************************
2181 * MapHInstSL (KERNEL32.@)
2182 */
2183 __ASM_GLOBAL_FUNC( MapHInstSL,
2184 "pushl %eax\n\t"
2185 "call " __ASM_NAME("MapHModuleSL") "\n\t"
2186 "ret" )
2187
2188 /***************************************************************************
2189 * MapHInstLS_PN (KERNEL32.@)
2190 */
2191 __ASM_GLOBAL_FUNC( MapHInstLS_PN,
2192 "testl %eax,%eax\n\t"
2193 "jz 1f\n\t"
2194 "pushl %eax\n\t"
2195 "call " __ASM_NAME("MapHModuleLS") "\n"
2196 "1:\tret" )
2197
2198 /***************************************************************************
2199 * MapHInstSL_PN (KERNEL32.@)
2200 */
2201 __ASM_GLOBAL_FUNC( MapHInstSL_PN,
2202 "andl $0xffff,%eax\n\t"
2203 "jz 1f\n\t"
2204 "pushl %eax\n\t"
2205 "call " __ASM_NAME("MapHModuleSL") "\n"
2206 "1:\tret" )
2207
2208 #endif /* __i386__ */
Windows API implementation