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Check against NULL libname in LoadModule16.
[wine.git] / dlls / kernel / ne_module.c
blob5693bec194724be5cd2637613b5815dca1afa55d
1 /*
2 * NE modules
3 *
4 * Copyright 1995 Alexandre Julliard
5 *
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
10 *
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19 */
20
21 #include "config.h"
22 #include "wine/port.h"
23
24 #include <assert.h>
25 #include <fcntl.h>
26 #include <stdarg.h>
27 #include <stdio.h>
28 #include <stdlib.h>
29 #include <string.h>
30 #ifdef HAVE_UNISTD_H
31 # include <unistd.h>
32 #endif
33 #include <ctype.h>
34
35 #include "windef.h"
36 #include "wine/winbase16.h"
37 #include "wownt32.h"
38 #include "winternl.h"
39 #include "toolhelp.h"
40 #include "excpt.h"
41 #include "kernel_private.h"
42 #include "kernel16_private.h"
43 #include "wine/exception.h"
44 #include "wine/debug.h"
45
46 WINE_DEFAULT_DEBUG_CHANNEL(module);
47 WINE_DECLARE_DEBUG_CHANNEL(loaddll);
48 WINE_DECLARE_DEBUG_CHANNEL(relay);
49
50 #include "pshpack1.h"
51 typedef struct _GPHANDLERDEF
52 {
53 WORD selector;
54 WORD rangeStart;
55 WORD rangeEnd;
56 WORD handler;
57 } GPHANDLERDEF;
58 #include "poppack.h"
59
60 /*
61 * Segment table entry
62 */
63 struct ne_segment_table_entry_s
64 {
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 */
69 };
70
71 #define hFirstModule (pThhook->hExeHead)
72
73 struct builtin_dll
74 {
75 const IMAGE_DOS_HEADER *header; /* module headers */
76 const char *file_name; /* module file name */
77 };
78
79 /* Table of all built-in DLLs */
80
81 #define MAX_DLLS 50
82
83 static struct builtin_dll builtin_dlls[MAX_DLLS];
84
85 static HINSTANCE16 NE_LoadModule( LPCSTR name, BOOL lib_only );
86 static BOOL16 NE_FreeModule( HMODULE16 hModule, BOOL call_wep );
87
88 static HINSTANCE16 MODULE_LoadModule16( LPCSTR libname, BOOL implicit, BOOL lib_only );
89
90 static HMODULE16 NE_GetModuleByFilename( LPCSTR name );
91
92
93 static WINE_EXCEPTION_FILTER(page_fault)
94 {
95 if (GetExceptionCode() == EXCEPTION_ACCESS_VIOLATION ||
96 GetExceptionCode() == EXCEPTION_PRIV_INSTRUCTION)
97 return EXCEPTION_EXECUTE_HANDLER;
98 return EXCEPTION_CONTINUE_SEARCH;
99 }
100
101
102 /* patch all the flat cs references of the code segment if necessary */
103 inline static void patch_code_segment( NE_MODULE *pModule )
104 {
105 #ifdef __i386__
106 int i;
107 CALLFROM16 *call;
108 SEGTABLEENTRY *pSeg = NE_SEG_TABLE( pModule );
109
110 for (i = 0; i < pModule->ne_cseg; i++, pSeg++)
111 if (!(pSeg->flags & NE_SEGFLAGS_DATA)) break; /* found the code segment */
112
113 call = GlobalLock16( pSeg->hSeg );
114
115 if (call->flatcs != wine_get_cs()) /* need to patch cs values */
116 for (i = 0; call[i].pushl == 0x68; i++) call[i].flatcs = wine_get_cs();
117
118 if (TRACE_ON(relay)) /* patch relay functions to all point to relay_call_from_16 */
119 for (i = 0; call[i].pushl == 0x68; i++) call[i].relay = relay_call_from_16;
120 #endif
121 }
122
123
124 /***********************************************************************
125 * NE_strcasecmp
126 *
127 * locale-independent case conversion for module lookups
128 */
129 static int NE_strcasecmp( const char *str1, const char *str2 )
130 {
131 int ret = 0;
132 for ( ; ; str1++, str2++)
133 if ((ret = RtlUpperChar(*str1) - RtlUpperChar(*str2)) || !*str1) break;
134 return ret;
135 }
136
137
138 /***********************************************************************
139 * NE_strncasecmp
140 *
141 * locale-independent case conversion for module lookups
142 */
143 static int NE_strncasecmp( const char *str1, const char *str2, int len )
144 {
145 int ret = 0;
146 for ( ; len > 0; len--, str1++, str2++)
147 if ((ret = RtlUpperChar(*str1) - RtlUpperChar(*str2)) || !*str1) break;
148 return ret;
149 }
150
151
152 /***********************************************************************
153 * find_dll_descr
154 *
155 * Find a descriptor in the list
156 */
157 static const IMAGE_DOS_HEADER *find_dll_descr( const char *dllname, const char **file_name )
158 {
159 int i;
160 const IMAGE_DOS_HEADER *mz_header;
161 const IMAGE_OS2_HEADER *ne_header;
162 BYTE *name_table;
163
164 for (i = 0; i < MAX_DLLS; i++)
165 {
166 mz_header = builtin_dlls[i].header;
167 if (mz_header)
168 {
169 ne_header = (const IMAGE_OS2_HEADER *)((const char *)mz_header + mz_header->e_lfanew);
170 name_table = (BYTE *)ne_header + ne_header->ne_restab;
171
172 /* check the dll file name */
173 if (!NE_strcasecmp( builtin_dlls[i].file_name, dllname ) ||
174 /* check the dll module name (without extension) */
175 (!NE_strncasecmp( dllname, name_table+1, *name_table ) &&
176 !strcmp( dllname + *name_table, ".dll" )))
177 {
178 *file_name = builtin_dlls[i].file_name;
179 return builtin_dlls[i].header;
180 }
181 }
182 }
183 return NULL;
184 }
185
186
187 /***********************************************************************
188 * __wine_dll_register_16 (KERNEL32.@)
189 *
190 * Register a built-in DLL descriptor.
191 */
192 void __wine_dll_register_16( const IMAGE_DOS_HEADER *header, const char *file_name )
193 {
194 int i;
195
196 for (i = 0; i < MAX_DLLS; i++)
197 {
198 if (builtin_dlls[i].header) continue;
199 builtin_dlls[i].header = header;
200 builtin_dlls[i].file_name = file_name;
201 break;
202 }
203 assert( i < MAX_DLLS );
204 }
205
206
207 /***********************************************************************
208 * __wine_dll_unregister_16 (KERNEL32.@)
209 *
210 * Unregister a built-in DLL descriptor.
211 */
212 void __wine_dll_unregister_16( const IMAGE_DOS_HEADER *header )
213 {
214 int i;
215
216 for (i = 0; i < MAX_DLLS; i++)
217 {
218 if (builtin_dlls[i].header != header) continue;
219 builtin_dlls[i].header = NULL;
220 break;
221 }
222 }
223
224
225 /***********************************************************************
226 * NE_GetPtr
227 */
228 NE_MODULE *NE_GetPtr( HMODULE16 hModule )
229 {
230 return (NE_MODULE *)GlobalLock16( GetExePtr(hModule) );
231 }
232
233
234 /**********************************************************************
235 * NE_RegisterModule
236 */
237 static void NE_RegisterModule( NE_MODULE *pModule )
238 {
239 pModule->next = hFirstModule;
240 hFirstModule = pModule->self;
241 }
242
243
244 /***********************************************************************
245 * NE_DumpModule
246 */
247 void NE_DumpModule( HMODULE16 hModule )
248 {
249 int i, ordinal;
250 SEGTABLEENTRY *pSeg;
251 BYTE *pstr;
252 WORD *pword;
253 NE_MODULE *pModule;
254 ET_BUNDLE *bundle;
255 ET_ENTRY *entry;
256
257 if (!(pModule = NE_GetPtr( hModule )))
258 {
259 MESSAGE( "**** %04x is not a module handle\n", hModule );
260 return;
261 }
262
263 /* Dump the module info */
264 DPRINTF( "---\n" );
265 DPRINTF( "Module %04x:\n", hModule );
266 DPRINTF( "count=%d flags=%04x heap=%d stack=%d\n",
267 pModule->count, pModule->ne_flags,
268 pModule->ne_heap, pModule->ne_stack );
269 DPRINTF( "cs:ip=%04x:%04x ss:sp=%04x:%04x ds=%04x nb seg=%d modrefs=%d\n",
270 SELECTOROF(pModule->ne_csip), OFFSETOF(pModule->ne_csip),
271 SELECTOROF(pModule->ne_sssp), OFFSETOF(pModule->ne_sssp),
272 pModule->ne_autodata, pModule->ne_cseg, pModule->ne_cmod );
273 DPRINTF( "os_flags=%d swap_area=%d version=%04x\n",
274 pModule->ne_exetyp, pModule->ne_swaparea, pModule->ne_expver );
275 if (pModule->ne_flags & NE_FFLAGS_WIN32)
276 DPRINTF( "PE module=%p\n", pModule->module32 );
277
278 /* Dump the file info */
279 DPRINTF( "---\n" );
280 DPRINTF( "Filename: '%s'\n", NE_MODULE_NAME(pModule) );
281
282 /* Dump the segment table */
283 DPRINTF( "---\n" );
284 DPRINTF( "Segment table:\n" );
285 pSeg = NE_SEG_TABLE( pModule );
286 for (i = 0; i < pModule->ne_cseg; i++, pSeg++)
287 DPRINTF( "%02x: pos=%d size=%d flags=%04x minsize=%d hSeg=%04x\n",
288 i + 1, pSeg->filepos, pSeg->size, pSeg->flags,
289 pSeg->minsize, pSeg->hSeg );
290
291 /* Dump the resource table */
292 DPRINTF( "---\n" );
293 DPRINTF( "Resource table:\n" );
294 if (pModule->ne_rsrctab)
295 {
296 pword = (WORD *)((BYTE *)pModule + pModule->ne_rsrctab);
297 DPRINTF( "Alignment: %d\n", *pword++ );
298 while (*pword)
299 {
300 NE_TYPEINFO *ptr = (NE_TYPEINFO *)pword;
301 NE_NAMEINFO *pname = (NE_NAMEINFO *)(ptr + 1);
302 DPRINTF( "id=%04x count=%d\n", ptr->type_id, ptr->count );
303 for (i = 0; i < ptr->count; i++, pname++)
304 DPRINTF( "offset=%d len=%d id=%04x\n",
305 pname->offset, pname->length, pname->id );
306 pword = (WORD *)pname;
307 }
308 }
309 else DPRINTF( "None\n" );
310
311 /* Dump the resident name table */
312 DPRINTF( "---\n" );
313 DPRINTF( "Resident-name table:\n" );
314 pstr = (char *)pModule + pModule->ne_restab;
315 while (*pstr)
316 {
317 DPRINTF( "%*.*s: %d\n", *pstr, *pstr, pstr + 1,
318 *(WORD *)(pstr + *pstr + 1) );
319 pstr += *pstr + 1 + sizeof(WORD);
320 }
321
322 /* Dump the module reference table */
323 DPRINTF( "---\n" );
324 DPRINTF( "Module ref table:\n" );
325 if (pModule->ne_modtab)
326 {
327 pword = (WORD *)((BYTE *)pModule + pModule->ne_modtab);
328 for (i = 0; i < pModule->ne_cmod; i++, pword++)
329 {
330 char name[10];
331 GetModuleName16( *pword, name, sizeof(name) );
332 DPRINTF( "%d: %04x -> '%s'\n", i, *pword, name );
333 }
334 }
335 else DPRINTF( "None\n" );
336
337 /* Dump the entry table */
338 DPRINTF( "---\n" );
339 DPRINTF( "Entry table:\n" );
340 bundle = (ET_BUNDLE *)((BYTE *)pModule+pModule->ne_enttab);
341 do {
342 entry = (ET_ENTRY *)((BYTE *)bundle+6);
343 DPRINTF( "Bundle %d-%d: %02x\n", bundle->first, bundle->last, entry->type);
344 ordinal = bundle->first;
345 while (ordinal < bundle->last)
346 {
347 if (entry->type == 0xff)
348 DPRINTF("%d: %02x:%04x (moveable)\n", ordinal++, entry->segnum, entry->offs);
349 else
350 DPRINTF("%d: %02x:%04x (fixed)\n", ordinal++, entry->segnum, entry->offs);
351 entry++;
352 }
353 } while ( (bundle->next) && (bundle = ((ET_BUNDLE *)((BYTE *)pModule + bundle->next))) );
354
355 /* Dump the non-resident names table */
356 DPRINTF( "---\n" );
357 DPRINTF( "Non-resident names table:\n" );
358 if (pModule->nrname_handle)
359 {
360 pstr = (char *)GlobalLock16( pModule->nrname_handle );
361 while (*pstr)
362 {
363 DPRINTF( "%*.*s: %d\n", *pstr, *pstr, pstr + 1,
364 *(WORD *)(pstr + *pstr + 1) );
365 pstr += *pstr + 1 + sizeof(WORD);
366 }
367 }
368 DPRINTF( "\n" );
369 }
370
371
372 /***********************************************************************
373 * NE_WalkModules
374 *
375 * Walk the module list and print the modules.
376 */
377 void NE_WalkModules(void)
378 {
379 HMODULE16 hModule = hFirstModule;
380 MESSAGE( "Module Flags Name\n" );
381 while (hModule)
382 {
383 NE_MODULE *pModule = NE_GetPtr( hModule );
384 if (!pModule)
385 {
386 MESSAGE( "Bad module %04x in list\n", hModule );
387 return;
388 }
389 MESSAGE( " %04x %04x %.*s\n", hModule, pModule->ne_flags,
390 *((char *)pModule + pModule->ne_restab),
391 (char *)pModule + pModule->ne_restab + 1 );
392 hModule = pModule->next;
393 }
394 }
395
396
397 /***********************************************************************
398 * NE_InitResourceHandler
399 *
400 * Fill in 'resloader' fields in the resource table.
401 */
402 static void NE_InitResourceHandler( HMODULE16 hModule )
403 {
404 static FARPROC16 proc;
405
406 NE_TYPEINFO *pTypeInfo;
407 NE_MODULE *pModule;
408
409 if (!(pModule = NE_GetPtr( hModule )) || !pModule->ne_rsrctab) return;
410
411 TRACE("InitResourceHandler[%04x]\n", hModule );
412
413 if (!proc) proc = GetProcAddress16( GetModuleHandle16("KERNEL"), "DefResourceHandler" );
414
415 pTypeInfo = (NE_TYPEINFO *)((char *)pModule + pModule->ne_rsrctab + 2);
416 while(pTypeInfo->type_id)
417 {
418 memcpy_unaligned( &pTypeInfo->resloader, &proc, sizeof(FARPROC16) );
419 pTypeInfo = (NE_TYPEINFO *)((char*)(pTypeInfo + 1) + pTypeInfo->count * sizeof(NE_NAMEINFO));
420 }
421 }
422
423
424 /***********************************************************************
425 * NE_GetOrdinal
426 *
427 * Lookup the ordinal for a given name.
428 */
429 WORD NE_GetOrdinal( HMODULE16 hModule, const char *name )
430 {
431 unsigned char buffer[256], *cpnt;
432 BYTE len;
433 NE_MODULE *pModule;
434
435 if (!(pModule = NE_GetPtr( hModule ))) return 0;
436 if (pModule->ne_flags & NE_FFLAGS_WIN32) return 0;
437
438 TRACE("(%04x,'%s')\n", hModule, name );
439
440 /* First handle names of the form '#xxxx' */
441
442 if (name[0] == '#') return atoi( name + 1 );
443
444 /* Now copy and uppercase the string */
445
446 strcpy( buffer, name );
447 for (cpnt = buffer; *cpnt; cpnt++) *cpnt = RtlUpperChar(*cpnt);
448 len = cpnt - buffer;
449
450 /* First search the resident names */
451
452 cpnt = (char *)pModule + pModule->ne_restab;
453
454 /* Skip the first entry (module name) */
455 cpnt += *cpnt + 1 + sizeof(WORD);
456 while (*cpnt)
457 {
458 if (((BYTE)*cpnt == len) && !memcmp( cpnt+1, buffer, len ))
459 {
460 WORD ordinal;
461 memcpy( &ordinal, cpnt + *cpnt + 1, sizeof(ordinal) );
462 TRACE(" Found: ordinal=%d\n", ordinal );
463 return ordinal;
464 }
465 cpnt += *cpnt + 1 + sizeof(WORD);
466 }
467
468 /* Now search the non-resident names table */
469
470 if (!pModule->nrname_handle) return 0; /* No non-resident table */
471 cpnt = (char *)GlobalLock16( pModule->nrname_handle );
472
473 /* Skip the first entry (module description string) */
474 cpnt += *cpnt + 1 + sizeof(WORD);
475 while (*cpnt)
476 {
477 if (((BYTE)*cpnt == len) && !memcmp( cpnt+1, buffer, len ))
478 {
479 WORD ordinal;
480 memcpy( &ordinal, cpnt + *cpnt + 1, sizeof(ordinal) );
481 TRACE(" Found: ordinal=%d\n", ordinal );
482 return ordinal;
483 }
484 cpnt += *cpnt + 1 + sizeof(WORD);
485 }
486 return 0;
487 }
488
489
490 /***********************************************************************
491 * NE_GetEntryPoint
492 */
493 FARPROC16 WINAPI NE_GetEntryPoint( HMODULE16 hModule, WORD ordinal )
494 {
495 return NE_GetEntryPointEx( hModule, ordinal, TRUE );
496 }
497
498 /***********************************************************************
499 * NE_GetEntryPointEx
500 */
501 FARPROC16 NE_GetEntryPointEx( HMODULE16 hModule, WORD ordinal, BOOL16 snoop )
502 {
503 NE_MODULE *pModule;
504 WORD sel, offset, i;
505
506 ET_ENTRY *entry;
507 ET_BUNDLE *bundle;
508
509 if (!(pModule = NE_GetPtr( hModule ))) return 0;
510 assert( !(pModule->ne_flags & NE_FFLAGS_WIN32) );
511
512 bundle = (ET_BUNDLE *)((BYTE *)pModule + pModule->ne_enttab);
513 while ((ordinal < bundle->first + 1) || (ordinal > bundle->last))
514 {
515 if (!(bundle->next))
516 return 0;
517 bundle = (ET_BUNDLE *)((BYTE *)pModule + bundle->next);
518 }
519
520 entry = (ET_ENTRY *)((BYTE *)bundle+6);
521 for (i=0; i < (ordinal - bundle->first - 1); i++)
522 entry++;
523
524 sel = entry->segnum;
525 memcpy( &offset, &entry->offs, sizeof(WORD) );
526
527 if (sel == 0xfe) sel = 0xffff; /* constant entry */
528 else sel = GlobalHandleToSel16(NE_SEG_TABLE(pModule)[sel-1].hSeg);
529 if (sel==0xffff)
530 return (FARPROC16)MAKESEGPTR( sel, offset );
531 if (!snoop)
532 return (FARPROC16)MAKESEGPTR( sel, offset );
533 else
534 return (FARPROC16)SNOOP16_GetProcAddress16(hModule,ordinal,(FARPROC16)MAKESEGPTR( sel, offset ));
535 }
536
537
538 /***********************************************************************
539 * EntryAddrProc (KERNEL.667) Wine-specific export
540 *
541 * Return the entry point for a given ordinal.
542 */
543 FARPROC16 WINAPI EntryAddrProc16( HMODULE16 hModule, WORD ordinal )
544 {
545 FARPROC16 ret = NE_GetEntryPointEx( hModule, ordinal, TRUE );
546 CURRENT_STACK16->ecx = hModule; /* FIXME: might be incorrect value */
547 return ret;
548 }
549
550 /***********************************************************************
551 * NE_SetEntryPoint
552 *
553 * Change the value of an entry point. Use with caution!
554 * It can only change the offset value, not the selector.
555 */
556 BOOL16 NE_SetEntryPoint( HMODULE16 hModule, WORD ordinal, WORD offset )
557 {
558 NE_MODULE *pModule;
559 ET_ENTRY *entry;
560 ET_BUNDLE *bundle;
561 int i;
562
563 if (!(pModule = NE_GetPtr( hModule ))) return FALSE;
564 assert( !(pModule->ne_flags & NE_FFLAGS_WIN32) );
565
566 bundle = (ET_BUNDLE *)((BYTE *)pModule + pModule->ne_enttab);
567 while ((ordinal < bundle->first + 1) || (ordinal > bundle->last))
568 {
569 bundle = (ET_BUNDLE *)((BYTE *)pModule + bundle->next);
570 if (!(bundle->next)) return 0;
571 }
572
573 entry = (ET_ENTRY *)((BYTE *)bundle+6);
574 for (i=0; i < (ordinal - bundle->first - 1); i++)
575 entry++;
576
577 memcpy( &entry->offs, &offset, sizeof(WORD) );
578 return TRUE;
579 }
580
581
582 /***********************************************************************
583 * build_bundle_data
584 *
585 * Build the entry table bundle data from the on-disk format. Helper for build_module.
586 */
587 static void *build_bundle_data( NE_MODULE *pModule, void *dest, const BYTE *table )
588 {
589 ET_BUNDLE *oldbundle, *bundle = dest;
590 ET_ENTRY *entry;
591 BYTE nr_entries, type;
592
593 memset(bundle, 0, sizeof(ET_BUNDLE)); /* in case no entry table exists */
594 entry = (ET_ENTRY *)((BYTE *)bundle+6);
595
596 while ((nr_entries = *table++))
597 {
598 if ((type = *table++))
599 {
600 bundle->last += nr_entries;
601 if (type == 0xff)
602 {
603 while (nr_entries--)
604 {
605 entry->type = type;
606 entry->flags = *table++;
607 table += sizeof(WORD);
608 entry->segnum = *table++;
609 entry->offs = *(WORD *)table;
610 table += sizeof(WORD);
611 entry++;
612 }
613 }
614 else
615 {
616 while (nr_entries--)
617 {
618 entry->type = type;
619 entry->flags = *table++;
620 entry->segnum = type;
621 entry->offs = *(WORD *)table;
622 table += sizeof(WORD);
623 entry++;
624 }
625 }
626 }
627 else
628 {
629 if (bundle->first == bundle->last)
630 {
631 bundle->first += nr_entries;
632 bundle->last += nr_entries;
633 }
634 else
635 {
636 oldbundle = bundle;
637 oldbundle->next = (char *)entry - (char *)pModule;
638 bundle = (ET_BUNDLE *)entry;
639 bundle->first = bundle->last = oldbundle->last + nr_entries;
640 bundle->next = 0;
641 entry = (ET_ENTRY*)(((BYTE*)entry)+sizeof(ET_BUNDLE));
642 }
643 }
644 }
645 return entry;
646 }
647
648
649 /***********************************************************************
650 * build_module
651 *
652 * Build the in-memory module from the on-disk data.
653 */
654 static HMODULE16 build_module( const void *mapping, SIZE_T mapping_size, LPCSTR path )
655 {
656 const IMAGE_DOS_HEADER *mz_header = mapping;
657 const IMAGE_OS2_HEADER *ne_header;
658 const struct ne_segment_table_entry_s *pSeg;
659 const void *ptr;
660 int i;
661 size_t size;
662 HMODULE16 hModule;
663 NE_MODULE *pModule;
664 BYTE *buffer, *pData, *end;
665 OFSTRUCT *ofs;
666
667 if (mapping_size < sizeof(*mz_header)) return ERROR_BAD_FORMAT;
668 if (mz_header->e_magic != IMAGE_DOS_SIGNATURE) return ERROR_BAD_FORMAT;
669 ne_header = (const IMAGE_OS2_HEADER *)((const char *)mapping + mz_header->e_lfanew);
670 if (mz_header->e_lfanew + sizeof(*ne_header) > mapping_size) return ERROR_BAD_FORMAT;
671 if (ne_header->ne_magic == IMAGE_NT_SIGNATURE) return 21; /* win32 exe */
672 if (ne_header->ne_magic == IMAGE_OS2_SIGNATURE_LX)
673 {
674 MESSAGE("Sorry, %s is an OS/2 linear executable (LX) file!\n", path);
675 return 12;
676 }
677 if (ne_header->ne_magic != IMAGE_OS2_SIGNATURE) return ERROR_BAD_FORMAT;
678
679 /* We now have a valid NE header */
680
681 /* check to be able to fall back to loading OS/2 programs as DOS
682 * FIXME: should this check be reversed in order to be less strict?
683 * (only fail for OS/2 ne_exetyp 0x01 here?) */
684 if ((ne_header->ne_exetyp != 0x02 /* Windows */)
685 && (ne_header->ne_exetyp != 0x04) /* Windows 386 */)
686 return ERROR_BAD_FORMAT;
687
688 size = sizeof(NE_MODULE) +
689 /* segment table */
690 ne_header->ne_cseg * sizeof(SEGTABLEENTRY) +
691 /* resource table */
692 ne_header->ne_restab - ne_header->ne_rsrctab +
693 /* resident names table */
694 ne_header->ne_modtab - ne_header->ne_restab +
695 /* module ref table */
696 ne_header->ne_cmod * sizeof(WORD) +
697 /* imported names table */
698 ne_header->ne_enttab - ne_header->ne_imptab +
699 /* entry table length */
700 ne_header->ne_cbenttab +
701 /* entry table extra conversion space */
702 sizeof(ET_BUNDLE) +
703 2 * (ne_header->ne_cbenttab - ne_header->ne_cmovent*6) +
704 /* loaded file info */
705 sizeof(OFSTRUCT) - sizeof(ofs->szPathName) + strlen(path) + 1;
706
707 hModule = GlobalAlloc16( GMEM_FIXED | GMEM_ZEROINIT, size );
708 if (!hModule) return ERROR_BAD_FORMAT;
709
710 FarSetOwner16( hModule, hModule );
711 pModule = (NE_MODULE *)GlobalLock16( hModule );
712 memcpy( pModule, ne_header, sizeof(*ne_header) );
713 pModule->count = 0;
714 /* check programs for default minimal stack size */
715 if (!(pModule->ne_flags & NE_FFLAGS_LIBMODULE) && (pModule->ne_stack < 0x1400))
716 pModule->ne_stack = 0x1400;
717
718 pModule->self = hModule;
719 pModule->mapping = mapping;
720 pModule->mapping_size = mapping_size;
721
722 pData = (BYTE *)(pModule + 1);
723
724 /* Clear internal Wine flags in case they are set in the EXE file */
725
726 pModule->ne_flags &= ~(NE_FFLAGS_BUILTIN | NE_FFLAGS_WIN32);
727
728 /* Get the segment table */
729
730 pModule->ne_segtab = pData - (BYTE *)pModule;
731 if (!(pSeg = NE_GET_DATA( pModule, mz_header->e_lfanew + ne_header->ne_segtab,
732 ne_header->ne_cseg * sizeof(struct ne_segment_table_entry_s) )))
733 goto failed;
734 for (i = ne_header->ne_cseg; i > 0; i--, pSeg++)
735 {
736 memcpy( pData, pSeg, sizeof(*pSeg) );
737 pData += sizeof(SEGTABLEENTRY);
738 }
739
740 /* Get the resource table */
741
742 if (ne_header->ne_rsrctab < ne_header->ne_restab)
743 {
744 pModule->ne_rsrctab = pData - (BYTE *)pModule;
745 if (!NE_READ_DATA( pModule, pData, mz_header->e_lfanew + ne_header->ne_rsrctab,
746 ne_header->ne_restab - ne_header->ne_rsrctab )) goto failed;
747 pData += ne_header->ne_restab - ne_header->ne_rsrctab;
748 }
749 else pModule->ne_rsrctab = 0; /* No resource table */
750
751 /* Get the resident names table */
752
753 pModule->ne_restab = pData - (BYTE *)pModule;
754 if (!NE_READ_DATA( pModule, pData, mz_header->e_lfanew + ne_header->ne_restab,
755 ne_header->ne_modtab - ne_header->ne_restab )) goto failed;
756 pData += ne_header->ne_modtab - ne_header->ne_restab;
757
758 /* Get the module references table */
759
760 if (ne_header->ne_cmod > 0)
761 {
762 pModule->ne_modtab = pData - (BYTE *)pModule;
763 if (!NE_READ_DATA( pModule, pData, mz_header->e_lfanew + ne_header->ne_modtab,
764 ne_header->ne_cmod * sizeof(WORD) )) goto failed;
765 pData += ne_header->ne_cmod * sizeof(WORD);
766 }
767 else pModule->ne_modtab = 0; /* No module references */
768
769 /* Get the imported names table */
770
771 pModule->ne_imptab = pData - (BYTE *)pModule;
772 if (!NE_READ_DATA( pModule, pData, mz_header->e_lfanew + ne_header->ne_imptab,
773 ne_header->ne_enttab - ne_header->ne_imptab )) goto failed;
774 pData += ne_header->ne_enttab - ne_header->ne_imptab;
775
776 /* Load entry table, convert it to the optimized version used by Windows */
777
778 pModule->ne_enttab = pData - (BYTE *)pModule;
779 if (!(ptr = NE_GET_DATA( pModule, mz_header->e_lfanew + ne_header->ne_enttab,
780 ne_header->ne_cbenttab ))) goto failed;
781 end = build_bundle_data( pModule, pData, ptr );
782
783 pData += ne_header->ne_cbenttab + sizeof(ET_BUNDLE) +
784 2 * (ne_header->ne_cbenttab - ne_header->ne_cmovent*6);
785
786 if (end > pData)
787 {
788 FIXME( "not enough space for entry table for %s\n", debugstr_a(path) );
789 goto failed;
790 }
791
792 /* Store the filename information */
793
794 pModule->fileinfo = pData - (BYTE *)pModule;
795 ofs = (OFSTRUCT *)pData;
796 ofs->cBytes = sizeof(OFSTRUCT) - sizeof(ofs->szPathName) + strlen(path);
797 ofs->fFixedDisk = 1;
798 strcpy( ofs->szPathName, path );
799 pData += ofs->cBytes + 1;
800 assert( (BYTE *)pModule + size <= pData );
801
802 /* Get the non-resident names table */
803
804 if (ne_header->ne_cbnrestab)
805 {
806 pModule->nrname_handle = GlobalAlloc16( 0, ne_header->ne_cbnrestab );
807 if (!pModule->nrname_handle) goto failed;
808 FarSetOwner16( pModule->nrname_handle, hModule );
809 buffer = GlobalLock16( pModule->nrname_handle );
810 if (!NE_READ_DATA( pModule, buffer, ne_header->ne_nrestab, ne_header->ne_cbnrestab ))
811 {
812 GlobalFree16( pModule->nrname_handle );
813 goto failed;
814 }
815 }
816 else pModule->nrname_handle = 0;
817
818 /* Allocate a segment for the implicitly-loaded DLLs */
819
820 if (pModule->ne_cmod)
821 {
822 pModule->dlls_to_init = GlobalAlloc16( GMEM_ZEROINIT,
823 (pModule->ne_cmod+1)*sizeof(HMODULE16) );
824 if (!pModule->dlls_to_init)
825 {
826 if (pModule->nrname_handle) GlobalFree16( pModule->nrname_handle );
827 goto failed;
828 }
829 FarSetOwner16( pModule->dlls_to_init, hModule );
830 }
831 else pModule->dlls_to_init = 0;
832
833 NE_RegisterModule( pModule );
834 return hModule;
835
836 failed:
837 GlobalFree16( hModule );
838 return ERROR_BAD_FORMAT;
839 }
840
841
842 /***********************************************************************
843 * NE_LoadDLLs
844 *
845 * Load all DLLs implicitly linked to a module.
846 */
847 static BOOL NE_LoadDLLs( NE_MODULE *pModule )
848 {
849 int i;
850 WORD *pModRef = (WORD *)((char *)pModule + pModule->ne_modtab);
851 WORD *pDLLs = (WORD *)GlobalLock16( pModule->dlls_to_init );
852
853 for (i = 0; i < pModule->ne_cmod; i++, pModRef++)
854 {
855 char buffer[260], *p;
856 BYTE *pstr = (BYTE *)pModule + pModule->ne_imptab + *pModRef;
857 memcpy( buffer, pstr + 1, *pstr );
858 *(buffer + *pstr) = 0; /* terminate it */
859
860 TRACE("Loading '%s'\n", buffer );
861 if (!(*pModRef = GetModuleHandle16( buffer )))
862 {
863 /* If the DLL is not loaded yet, load it and store */
864 /* its handle in the list of DLLs to initialize. */
865 HMODULE16 hDLL;
866
867 /* Append .DLL to name if no extension present */
868 if (!(p = strrchr( buffer, '.')) || strchr( p, '/' ) || strchr( p, '\\'))
869 strcat( buffer, ".DLL" );
870
871 if ((hDLL = MODULE_LoadModule16( buffer, TRUE, TRUE )) < 32)
872 {
873 /* FIXME: cleanup what was done */
874
875 MESSAGE( "Could not load '%s' required by '%.*s', error=%d\n",
876 buffer, *((BYTE*)pModule + pModule->ne_restab),
877 (char *)pModule + pModule->ne_restab + 1, hDLL );
878 return FALSE;
879 }
880 *pModRef = GetExePtr( hDLL );
881 *pDLLs++ = *pModRef;
882 }
883 else /* Increment the reference count of the DLL */
884 {
885 NE_MODULE *pOldDLL = NE_GetPtr( *pModRef );
886 if (pOldDLL) pOldDLL->count++;
887 }
888 }
889 return TRUE;
890 }
891
892
893 /**********************************************************************
894 * NE_DoLoadModule
895 *
896 * Load first instance of NE module from file.
897 *
898 * pModule must point to a module structure prepared by build_module.
899 * This routine must never be called twice on a module.
900 */
901 static HINSTANCE16 NE_DoLoadModule( NE_MODULE *pModule )
902 {
903 /* Allocate the segments for this module */
904
905 if (!NE_CreateAllSegments( pModule ))
906 return ERROR_NOT_ENOUGH_MEMORY; /* 8 */
907
908 /* Load the referenced DLLs */
909
910 if (!NE_LoadDLLs( pModule ))
911 return ERROR_FILE_NOT_FOUND; /* 2 */
912
913 /* Load the segments */
914
915 NE_LoadAllSegments( pModule );
916
917 /* Make sure the usage count is 1 on the first loading of */
918 /* the module, even if it contains circular DLL references */
919
920 pModule->count = 1;
921
922 return NE_GetInstance( pModule );
923 }
924
925 /**********************************************************************
926 * NE_LoadModule
927 *
928 * Load first instance of NE module. (Note: caller is responsible for
929 * ensuring the module isn't already loaded!)
930 *
931 * If the module turns out to be an executable module, only a
932 * handle to a module stub is returned; this needs to be initialized
933 * by calling NE_DoLoadModule later, in the context of the newly
934 * created process.
935 *
936 * If lib_only is TRUE, however, the module is perforce treated
937 * like a DLL module, even if it is an executable module.
938 *
939 */
940 static HINSTANCE16 NE_LoadModule( LPCSTR name, BOOL lib_only )
941 {
942 NE_MODULE *pModule;
943 HMODULE16 hModule;
944 HINSTANCE16 hInstance;
945 HFILE16 hFile;
946 OFSTRUCT ofs;
947 HANDLE mapping;
948 void *ptr;
949 MEMORY_BASIC_INFORMATION info;
950
951 /* Open file */
952 if ((hFile = OpenFile16( name, &ofs, OF_READ|OF_SHARE_DENY_WRITE )) == HFILE_ERROR16)
953 return ERROR_FILE_NOT_FOUND;
954
955 mapping = CreateFileMappingW( DosFileHandleToWin32Handle(hFile), NULL, PAGE_WRITECOPY, 0, 0, NULL );
956 _lclose16( hFile );
957 if (!mapping) return ERROR_BAD_FORMAT;
958
959 ptr = MapViewOfFile( mapping, FILE_MAP_COPY, 0, 0, 0 );
960 CloseHandle( mapping );
961 if (!ptr) return ERROR_BAD_FORMAT;
962
963 VirtualQuery( ptr, &info, sizeof(info) );
964 hModule = build_module( ptr, info.RegionSize, ofs.szPathName );
965
966 if (hModule < 32)
967 {
968 UnmapViewOfFile( ptr );
969 return hModule;
970 }
971
972 SNOOP16_RegisterDLL( hModule, ofs.szPathName );
973 NE_InitResourceHandler( hModule );
974
975 pModule = NE_GetPtr( hModule );
976
977 if ( !lib_only && !( pModule->ne_flags & NE_FFLAGS_LIBMODULE ) )
978 return hModule;
979
980 hInstance = NE_DoLoadModule( pModule );
981 if ( hInstance < 32 )
982 {
983 /* cleanup ... */
984 NE_FreeModule( hModule, 0 );
985 }
986
987 return hInstance;
988 }
989
990
991 /***********************************************************************
992 * NE_DoLoadBuiltinModule
993 *
994 * Load a built-in Win16 module. Helper function for NE_LoadBuiltinModule.
995 */
996 static HMODULE16 NE_DoLoadBuiltinModule( const IMAGE_DOS_HEADER *mz_header, const char *file_name,
997 HMODULE owner32 )
998 {
999 NE_MODULE *pModule;
1000 HMODULE16 hModule;
1001 HINSTANCE16 hInstance;
1002 OSVERSIONINFOW versionInfo;
1003 const IMAGE_OS2_HEADER *ne_header;
1004 SIZE_T mapping_size = ~0UL; /* assume builtins don't contain invalid offsets... */
1005
1006 ne_header = (const IMAGE_OS2_HEADER *)((const BYTE *)mz_header + mz_header->e_lfanew);
1007 hModule = build_module( mz_header, mapping_size, file_name );
1008 if (hModule < 32) return hModule;
1009 pModule = GlobalLock16( hModule );
1010 pModule->ne_flags |= NE_FFLAGS_BUILTIN;
1011 pModule->owner32 = owner32;
1012
1013 /* fake the expected version the module should have according to the current Windows version */
1014 versionInfo.dwOSVersionInfoSize = sizeof(versionInfo);
1015 if (GetVersionExW( &versionInfo ))
1016 pModule->ne_expver = MAKEWORD( versionInfo.dwMinorVersion, versionInfo.dwMajorVersion );
1017
1018 hInstance = NE_DoLoadModule( pModule );
1019 if (hInstance < 32) NE_FreeModule( hModule, 0 );
1020
1021 NE_InitResourceHandler( hModule );
1022
1023 if (pModule->ne_heap)
1024 {
1025 SEGTABLEENTRY *pSeg = NE_SEG_TABLE( pModule ) + pModule->ne_autodata - 1;
1026 unsigned int size = pSeg->minsize + pModule->ne_heap;
1027 if (size > 0xfffe) size = 0xfffe;
1028 LocalInit16( GlobalHandleToSel16(pSeg->hSeg), pSeg->minsize, size );
1029 }
1030
1031 patch_code_segment( pModule );
1032
1033 return hInstance;
1034 }
1035
1036
1037 /**********************************************************************
1038 * MODULE_LoadModule16
1039 *
1040 * Load a NE module in the order of the loadorder specification.
1041 * The caller is responsible that the module is not loaded already.
1042 *
1043 */
1044 static HINSTANCE16 MODULE_LoadModule16( LPCSTR libname, BOOL implicit, BOOL lib_only )
1045 {
1046 HINSTANCE16 hinst = 2;
1047 HMODULE16 hModule;
1048 HMODULE mod32 = 0;
1049 NE_MODULE *pModule;
1050 const IMAGE_DOS_HEADER *descr = NULL;
1051 const char *file_name = NULL;
1052 char dllname[20], owner[20], *p;
1053 const char *basename;
1054 int owner_exists;
1055
1056 /* strip path information */
1057
1058 basename = libname;
1059 if (basename[0] && basename[1] == ':') basename += 2; /* strip drive specification */
1060 if ((p = strrchr( basename, '\\' ))) basename = p + 1;
1061 if ((p = strrchr( basename, '/' ))) basename = p + 1;
1062
1063 if (strlen(basename) < sizeof(dllname)-4)
1064 {
1065 strcpy( dllname, basename );
1066 p = strrchr( dllname, '.' );
1067 if (!p) strcat( dllname, ".dll" );
1068 for (p = dllname; *p; p++) if (*p >= 'A' && *p <= 'Z') *p += 32;
1069
1070 if (wine_dll_get_owner( dllname, owner, sizeof(owner), &owner_exists ) != -1)
1071 {
1072 mod32 = LoadLibraryA( owner );
1073 if (mod32)
1074 {
1075 if (!(descr = find_dll_descr( dllname, &file_name )))
1076 {
1077 FreeLibrary( mod32 );
1078 owner_exists = 0;
1079 }
1080 /* loading the 32-bit library can have the side effect of loading the module */
1081 /* if so, simply incr the ref count and return the module */
1082 if ((hModule = GetModuleHandle16( libname )))
1083 {
1084 TRACE( "module %s already loaded by owner\n", libname );
1085 pModule = NE_GetPtr( hModule );
1086 if (pModule) pModule->count++;
1087 FreeLibrary( mod32 );
1088 return hModule;
1089 }
1090 }
1091 else
1092 {
1093 /* it's probably disabled by the load order config */
1094 WARN( "couldn't load owner %s for 16-bit dll %s\n", owner, dllname );
1095 return ERROR_FILE_NOT_FOUND;
1096 }
1097 }
1098 }
1099
1100 if (descr)
1101 {
1102 TRACE("Trying built-in '%s'\n", libname);
1103 hinst = NE_DoLoadBuiltinModule( descr, file_name, mod32 );
1104 if (hinst > 32) TRACE_(loaddll)("Loaded module %s : builtin\n", debugstr_a(file_name));
1105 }
1106 else
1107 {
1108 TRACE("Trying native dll '%s'\n", libname);
1109 hinst = NE_LoadModule(libname, lib_only);
1110 if (hinst > 32) TRACE_(loaddll)("Loaded module %s : native\n", debugstr_a(libname));
1111 if (hinst == ERROR_FILE_NOT_FOUND && owner_exists) hinst = 21; /* win32 module */
1112 }
1113
1114 if (hinst > 32 && !implicit)
1115 {
1116 hModule = GetModuleHandle16(libname);
1117 if(!hModule)
1118 {
1119 ERR("Serious trouble. Just loaded module '%s' (hinst=0x%04x), but can't get module handle. Filename too long ?\n",
1120 libname, hinst);
1121 return ERROR_INVALID_HANDLE;
1122 }
1123
1124 pModule = NE_GetPtr(hModule);
1125 if(!pModule)
1126 {
1127 ERR("Serious trouble. Just loaded module '%s' (hinst=0x%04x), but can't get NE_MODULE pointer\n",
1128 libname, hinst);
1129 return ERROR_INVALID_HANDLE;
1130 }
1131
1132 TRACE("Loaded module '%s' at 0x%04x.\n", libname, hinst);
1133
1134 /*
1135 * Call initialization routines for all loaded DLLs. Note that
1136 * when we load implicitly linked DLLs this will be done by InitTask().
1137 */
1138 if(pModule->ne_flags & NE_FFLAGS_LIBMODULE)
1139 {
1140 NE_InitializeDLLs(hModule);
1141 NE_DllProcessAttach(hModule);
1142 }
1143 }
1144 return hinst; /* The last error that occurred */
1145 }
1146
1147
1148 /**********************************************************************
1149 * NE_CreateThread
1150 *
1151 * Create the thread for a 16-bit module.
1152 */
1153 static HINSTANCE16 NE_CreateThread( NE_MODULE *pModule, WORD cmdShow, LPCSTR cmdline )
1154 {
1155 HANDLE hThread;
1156 TDB *pTask;
1157 HTASK16 hTask;
1158 HINSTANCE16 instance = 0;
1159
1160 if (!(hTask = TASK_SpawnTask( pModule, cmdShow, cmdline + 1, *cmdline, &hThread )))
1161 return 0;
1162
1163 /* Post event to start the task */
1164 PostEvent16( hTask );
1165
1166 /* Wait until we get the instance handle */
1167 do
1168 {
1169 DirectedYield16( hTask );
1170 if (!IsTask16( hTask )) /* thread has died */
1171 {
1172 DWORD exit_code;
1173 WaitForSingleObject( hThread, INFINITE );
1174 GetExitCodeThread( hThread, &exit_code );
1175 CloseHandle( hThread );
1176 return exit_code;
1177 }
1178 if (!(pTask = GlobalLock16( hTask ))) break;
1179 instance = pTask->hInstance;
1180 GlobalUnlock16( hTask );
1181 } while (!instance);
1182
1183 CloseHandle( hThread );
1184 return instance;
1185 }
1186
1187
1188 /**********************************************************************
1189 * LoadModule (KERNEL.45)
1190 */
1191 HINSTANCE16 WINAPI LoadModule16( LPCSTR name, LPVOID paramBlock )
1192 {
1193 BOOL lib_only = !paramBlock || (paramBlock == (LPVOID)-1);
1194 LOADPARAMS16 *params;
1195 HMODULE16 hModule;
1196 NE_MODULE *pModule;
1197 LPSTR cmdline;
1198 WORD cmdShow;
1199
1200 if (name == NULL) return 0;
1201
1202 /* Load module */
1203
1204 if ( (hModule = NE_GetModuleByFilename(name) ) != 0 )
1205 {
1206 /* Special case: second instance of an already loaded NE module */
1207
1208 if ( !( pModule = NE_GetPtr( hModule ) ) ) return ERROR_BAD_FORMAT;
1209 if ( pModule->module32 ) return (HINSTANCE16)21;
1210
1211 /* Increment refcount */
1212
1213 pModule->count++;
1214 }
1215 else
1216 {
1217 /* Main case: load first instance of NE module */
1218
1219 if ( (hModule = MODULE_LoadModule16( name, FALSE, lib_only )) < 32 )
1220 return hModule;
1221
1222 if ( !(pModule = NE_GetPtr( hModule )) )
1223 return ERROR_BAD_FORMAT;
1224 }
1225
1226 /* If library module, we just retrieve the instance handle */
1227
1228 if ( ( pModule->ne_flags & NE_FFLAGS_LIBMODULE ) || lib_only )
1229 return NE_GetInstance( pModule );
1230
1231 /*
1232 * At this point, we need to create a new process.
1233 *
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
1237 * information.
1238 */
1239 params = (LOADPARAMS16 *)paramBlock;
1240 cmdShow = ((WORD *)MapSL(params->showCmd))[1];
1241 cmdline = MapSL( params->cmdLine );
1242 return NE_CreateThread( pModule, cmdShow, cmdline );
1243 }
1244
1245
1246 /**********************************************************************
1247 * NE_StartTask
1248 *
1249 * Startup code for a new 16-bit task.
1250 */
1251 DWORD NE_StartTask(void)
1252 {
1253 TDB *pTask = TASK_GetCurrent();
1254 NE_MODULE *pModule = NE_GetPtr( pTask->hModule );
1255 HINSTANCE16 hInstance, hPrevInstance;
1256 SEGTABLEENTRY *pSegTable = NE_SEG_TABLE( pModule );
1257 WORD sp;
1258
1259 if ( pModule->count > 0 )
1260 {
1261 /* Second instance of an already loaded NE module */
1262 /* Note that the refcount was already incremented by the parent */
1263
1264 hPrevInstance = NE_GetInstance( pModule );
1265
1266 if ( pModule->ne_autodata )
1267 if ( NE_CreateSegment( pModule, pModule->ne_autodata ) )
1268 NE_LoadSegment( pModule, pModule->ne_autodata );
1269
1270 hInstance = NE_GetInstance( pModule );
1271 TRACE("created second instance %04x[%d] of instance %04x.\n", hInstance, pModule->ne_autodata, hPrevInstance);
1272
1273 }
1274 else
1275 {
1276 /* Load first instance of NE module */
1277
1278 pModule->ne_flags |= NE_FFLAGS_GUI; /* FIXME: is this necessary? */
1279
1280 hInstance = NE_DoLoadModule( pModule );
1281 hPrevInstance = 0;
1282 }
1283
1284 if ( hInstance >= 32 )
1285 {
1286 CONTEXT86 context;
1287
1288 /* Enter instance handles into task struct */
1289
1290 pTask->hInstance = hInstance;
1291 pTask->hPrevInstance = hPrevInstance;
1292
1293 /* Use DGROUP for 16-bit stack */
1294
1295 if (!(sp = OFFSETOF(pModule->ne_sssp)))
1296 sp = pSegTable[SELECTOROF(pModule->ne_sssp)-1].minsize + pModule->ne_stack;
1297 sp &= ~1;
1298 sp -= sizeof(STACK16FRAME);
1299 NtCurrentTeb()->WOW32Reserved = (void *)MAKESEGPTR( GlobalHandleToSel16(hInstance), sp );
1300
1301 /* Registers at initialization must be:
1302 * ax zero
1303 * bx stack size in bytes
1304 * cx heap size in bytes
1305 * si previous app instance
1306 * di current app instance
1307 * bp zero
1308 * es selector to the PSP
1309 * ds dgroup of the application
1310 * ss stack selector
1311 * sp top of the stack
1312 */
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;
1324
1325 /* Now call 16-bit entry point */
1326
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) );
1331
1332 WOWCallback16Ex( 0, WCB16_REGS, 0, NULL, (DWORD *)&context );
1333 ExitThread( LOWORD(context.Eax) );
1334 }
1335 return hInstance; /* error code */
1336 }
1337
1338 /***********************************************************************
1339 * LoadLibrary (KERNEL.95)
1340 * LoadLibrary16 (KERNEL32.35)
1341 */
1342 HINSTANCE16 WINAPI LoadLibrary16( LPCSTR libname )
1343 {
1344 return LoadModule16(libname, (LPVOID)-1 );
1345 }
1346
1347
1348 /**********************************************************************
1349 * MODULE_CallWEP
1350 *
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
1353 */
1354 static BOOL16 MODULE_CallWEP( HMODULE16 hModule )
1355 {
1356 BOOL16 ret;
1357 FARPROC16 WEP = GetProcAddress16( hModule, "WEP" );
1358 if (!WEP) return FALSE;
1359
1360 __TRY
1361 {
1362 WORD args[1];
1363 DWORD dwRet;
1364
1365 args[0] = WEP_FREE_DLL;
1366 WOWCallback16Ex( (DWORD)WEP, WCB16_PASCAL, sizeof(args), args, &dwRet );
1367 ret = LOWORD(dwRet);
1368 }
1369 __EXCEPT(page_fault)
1370 {
1371 WARN("Page fault\n");
1372 ret = 0;
1373 }
1374 __ENDTRY
1375
1376 return ret;
1377 }
1378
1379
1380 /**********************************************************************
1381 * NE_FreeModule
1382 *
1383 * Implementation of FreeModule16().
1384 */
1385 static BOOL16 NE_FreeModule( HMODULE16 hModule, BOOL call_wep )
1386 {
1387 HMODULE16 *hPrevModule;
1388 NE_MODULE *pModule;
1389 HMODULE16 *pModRef;
1390 int i;
1391
1392 if (!(pModule = NE_GetPtr( hModule ))) return FALSE;
1393 hModule = pModule->self;
1394
1395 TRACE("%04x count %d\n", hModule, pModule->count );
1396
1397 if (((INT16)(--pModule->count)) > 0 ) return TRUE;
1398 else pModule->count = 0;
1399
1400 if (call_wep && !(pModule->ne_flags & NE_FFLAGS_WIN32))
1401 {
1402 /* Free the objects owned by the DLL module */
1403 NE_CallUserSignalProc( hModule, USIG16_DLL_UNLOAD );
1404
1405 if (pModule->ne_flags & NE_FFLAGS_LIBMODULE)
1406 MODULE_CallWEP( hModule );
1407 else
1408 call_wep = FALSE; /* We are freeing a task -> no more WEPs */
1409 }
1410
1411 TRACE_(loaddll)("Unloaded module %s : %s\n", debugstr_a(NE_MODULE_NAME(pModule)),
1412 (pModule->ne_flags & NE_FFLAGS_BUILTIN) ? "builtin" : "native");
1413
1414 /* Clear magic number just in case */
1415
1416 pModule->ne_magic = pModule->self = 0;
1417 if (pModule->owner32) FreeLibrary( pModule->owner32 );
1418 else if (pModule->mapping) UnmapViewOfFile( (void *)pModule->mapping );
1419
1420 /* Remove it from the linked list */
1421
1422 hPrevModule = &hFirstModule;
1423 while (*hPrevModule && (*hPrevModule != hModule))
1424 {
1425 hPrevModule = &(NE_GetPtr( *hPrevModule ))->next;
1426 }
1427 if (*hPrevModule) *hPrevModule = pModule->next;
1428
1429 /* Free the referenced modules */
1430
1431 pModRef = (HMODULE16*)((char *)pModule + pModule->ne_modtab);
1432 for (i = 0; i < pModule->ne_cmod; i++, pModRef++)
1433 {
1434 NE_FreeModule( *pModRef, call_wep );
1435 }
1436
1437 /* Free the module storage */
1438
1439 GlobalFreeAll16( hModule );
1440 return TRUE;
1441 }
1442
1443
1444 /**********************************************************************
1445 * FreeModule (KERNEL.46)
1446 */
1447 BOOL16 WINAPI FreeModule16( HMODULE16 hModule )
1448 {
1449 return NE_FreeModule( hModule, TRUE );
1450 }
1451
1452
1453 /***********************************************************************
1454 * FreeLibrary (KERNEL.96)
1455 * FreeLibrary16 (KERNEL32.36)
1456 */
1457 void WINAPI FreeLibrary16( HINSTANCE16 handle )
1458 {
1459 TRACE("%04x\n", handle );
1460 FreeModule16( handle );
1461 }
1462
1463
1464 /***********************************************************************
1465 * GetModuleHandle16 (KERNEL32.@)
1466 */
1467 HMODULE16 WINAPI GetModuleHandle16( LPCSTR name )
1468 {
1469 HMODULE16 hModule = hFirstModule;
1470 LPSTR s;
1471 BYTE len, *name_table;
1472 char tmpstr[MAX_PATH];
1473 NE_MODULE *pModule;
1474
1475 TRACE("(%s)\n", name);
1476
1477 if (!HIWORD(name)) return GetExePtr(LOWORD(name));
1478
1479 len = strlen(name);
1480 if (!len) return 0;
1481
1482 lstrcpynA(tmpstr, name, sizeof(tmpstr));
1483
1484 /* If 'name' matches exactly the module name of a module:
1485 * Return its handle.
1486 */
1487 for (hModule = hFirstModule; hModule ; hModule = pModule->next)
1488 {
1489 pModule = NE_GetPtr( hModule );
1490 if (!pModule) break;
1491 if (pModule->ne_flags & NE_FFLAGS_WIN32) continue;
1492
1493 name_table = (BYTE *)pModule + pModule->ne_restab;
1494 if ((*name_table == len) && !strncmp(name, name_table+1, len))
1495 return hModule;
1496 }
1497
1498 /* If uppercased 'name' matches exactly the module name of a module:
1499 * Return its handle
1500 */
1501 for (s = tmpstr; *s; s++) *s = RtlUpperChar(*s);
1502
1503 for (hModule = hFirstModule; hModule ; hModule = pModule->next)
1504 {
1505 pModule = NE_GetPtr( hModule );
1506 if (!pModule) break;
1507 if (pModule->ne_flags & NE_FFLAGS_WIN32) continue;
1508
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
1515 */
1516 if ((*name_table == len) && !NE_strncasecmp(tmpstr, name_table+1, len))
1517 return hModule;
1518 }
1519
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.
1523 */
1524
1525 /* basename: search backwards in passed name to \ / or : */
1526 s = tmpstr + strlen(tmpstr);
1527 while (s > tmpstr)
1528 {
1529 if (s[-1]=='/' || s[-1]=='\\' || s[-1]==':')
1530 break;
1531 s--;
1532 }
1533
1534 /* search this in loaded filename list */
1535 for (hModule = hFirstModule; hModule ; hModule = pModule->next)
1536 {
1537 char *loadedfn;
1538 OFSTRUCT *ofs;
1539
1540 pModule = NE_GetPtr( hModule );
1541 if (!pModule) break;
1542 if (!pModule->fileinfo) continue;
1543 if (pModule->ne_flags & NE_FFLAGS_WIN32) continue;
1544
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)
1549 {
1550 if (loadedfn[-1]=='/' || loadedfn[-1]=='\\' || loadedfn[-1]==':')
1551 break;
1552 loadedfn--;
1553 }
1554 /* case insensitive compare ... */
1555 if (!NE_strcasecmp(loadedfn, s))
1556 return hModule;
1557 }
1558 return 0;
1559 }
1560
1561
1562 /**********************************************************************
1563 * GetModuleName (KERNEL.27)
1564 */
1565 BOOL16 WINAPI GetModuleName16( HINSTANCE16 hinst, LPSTR buf, INT16 count )
1566 {
1567 NE_MODULE *pModule;
1568 BYTE *p;
1569
1570 if (!(pModule = NE_GetPtr( hinst ))) return FALSE;
1571 p = (BYTE *)pModule + pModule->ne_restab;
1572 if (count > *p) count = *p + 1;
1573 if (count > 0)
1574 {
1575 memcpy( buf, p + 1, count - 1 );
1576 buf[count-1] = '\0';
1577 }
1578 return TRUE;
1579 }
1580
1581
1582 /**********************************************************************
1583 * GetModuleFileName (KERNEL.49)
1584 *
1585 * Comment: see GetModuleFileNameA
1586 *
1587 * Even if invoked by second instance of a program,
1588 * it still returns path of first one.
1589 */
1590 INT16 WINAPI GetModuleFileName16( HINSTANCE16 hModule, LPSTR lpFileName,
1591 INT16 nSize )
1592 {
1593 NE_MODULE *pModule;
1594
1595 /* Win95 does not query hModule if set to 0 !
1596 * Is this wrong or maybe Win3.1 only ? */
1597 if (!hModule) hModule = GetCurrentTask();
1598
1599 if (!(pModule = NE_GetPtr( hModule ))) return 0;
1600 lstrcpynA( lpFileName, NE_MODULE_NAME(pModule), nSize );
1601 if (pModule->ne_expver < 0x400)
1602 GetShortPathNameA(NE_MODULE_NAME(pModule), lpFileName, nSize);
1603 TRACE("%04x -> '%s'\n", hModule, lpFileName );
1604 return strlen(lpFileName);
1605 }
1606
1607
1608 /**********************************************************************
1609 * GetModuleUsage (KERNEL.48)
1610 */
1611 INT16 WINAPI GetModuleUsage16( HINSTANCE16 hModule )
1612 {
1613 NE_MODULE *pModule = NE_GetPtr( hModule );
1614 return pModule ? pModule->count : 0;
1615 }
1616
1617
1618 /**********************************************************************
1619 * GetExpWinVer (KERNEL.167)
1620 */
1621 WORD WINAPI GetExpWinVer16( HMODULE16 hModule )
1622 {
1623 NE_MODULE *pModule = NE_GetPtr( hModule );
1624 if ( !pModule ) return 0;
1625 return pModule->ne_expver;
1626 }
1627
1628
1629 /***********************************************************************
1630 * WinExec (KERNEL.166)
1631 */
1632 HINSTANCE16 WINAPI WinExec16( LPCSTR lpCmdLine, UINT16 nCmdShow )
1633 {
1634 LPCSTR p, args = NULL;
1635 LPCSTR name_beg, name_end;
1636 LPSTR name, cmdline;
1637 int arglen;
1638 HINSTANCE16 ret;
1639 char buffer[MAX_PATH];
1640
1641 if (*lpCmdLine == '"') /* has to be only one and only at beginning ! */
1642 {
1643 name_beg = lpCmdLine+1;
1644 p = strchr ( lpCmdLine+1, '"' );
1645 if (p)
1646 {
1647 name_end = p;
1648 args = strchr ( p, ' ' );
1649 }
1650 else /* yes, even valid with trailing '"' missing */
1651 name_end = lpCmdLine+strlen(lpCmdLine);
1652 }
1653 else
1654 {
1655 name_beg = lpCmdLine;
1656 args = strchr( lpCmdLine, ' ' );
1657 name_end = args ? args : lpCmdLine+strlen(lpCmdLine);
1658 }
1659
1660 if ((name_beg == lpCmdLine) && (!args))
1661 { /* just use the original cmdline string as file name */
1662 name = (LPSTR)lpCmdLine;
1663 }
1664 else
1665 {
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';
1670 }
1671
1672 if (args)
1673 {
1674 args++;
1675 arglen = strlen(args);
1676 cmdline = HeapAlloc( GetProcessHeap(), 0, 2 + arglen );
1677 cmdline[0] = (BYTE)arglen;
1678 strcpy( cmdline + 1, args );
1679 }
1680 else
1681 {
1682 cmdline = HeapAlloc( GetProcessHeap(), 0, 2 );
1683 cmdline[0] = cmdline[1] = 0;
1684 }
1685
1686 TRACE("name: '%s', cmdline: '%.*s'\n", name, cmdline[0], &cmdline[1]);
1687
1688 if (SearchPathA( NULL, name, ".exe", sizeof(buffer), buffer, NULL ))
1689 {
1690 LOADPARAMS16 params;
1691 WORD showCmd[2];
1692 showCmd[0] = 2;
1693 showCmd[1] = nCmdShow;
1694
1695 params.hEnvironment = 0;
1696 params.cmdLine = MapLS( cmdline );
1697 params.showCmd = MapLS( showCmd );
1698 params.reserved = 0;
1699
1700 ret = LoadModule16( buffer, &params );
1701 UnMapLS( params.cmdLine );
1702 UnMapLS( params.showCmd );
1703 }
1704 else ret = GetLastError();
1705
1706 HeapFree( GetProcessHeap(), 0, cmdline );
1707 if (name != lpCmdLine) HeapFree( GetProcessHeap(), 0, name );
1708
1709 if (ret == 21 || ret == ERROR_BAD_FORMAT) /* 32-bit module or unknown executable*/
1710 {
1711 DWORD count;
1712 ReleaseThunkLock( &count );
1713 ret = LOWORD( WinExec( lpCmdLine, nCmdShow ) );
1714 RestoreThunkLock( count );
1715 }
1716 return ret;
1717 }
1718
1719 /***********************************************************************
1720 * GetProcAddress (KERNEL.50)
1721 */
1722 FARPROC16 WINAPI GetProcAddress16( HMODULE16 hModule, LPCSTR name )
1723 {
1724 WORD ordinal;
1725 FARPROC16 ret;
1726
1727 if (!hModule) hModule = GetCurrentTask();
1728 hModule = GetExePtr( hModule );
1729
1730 if (HIWORD(name) != 0)
1731 {
1732 ordinal = NE_GetOrdinal( hModule, name );
1733 TRACE("%04x '%s'\n", hModule, name );
1734 }
1735 else
1736 {
1737 ordinal = LOWORD(name);
1738 TRACE("%04x %04x\n", hModule, ordinal );
1739 }
1740 if (!ordinal) return (FARPROC16)0;
1741
1742 ret = NE_GetEntryPoint( hModule, ordinal );
1743
1744 TRACE("returning %08x\n", (UINT)ret );
1745 return ret;
1746 }
1747
1748
1749 /***************************************************************************
1750 * HasGPHandler (KERNEL.338)
1751 */
1752 SEGPTR WINAPI HasGPHandler16( SEGPTR address )
1753 {
1754 HMODULE16 hModule;
1755 int gpOrdinal;
1756 SEGPTR gpPtr;
1757 GPHANDLERDEF *gpHandler;
1758
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 )
1764 {
1765 while (gpHandler->selector)
1766 {
1767 if ( SELECTOROF(address) == gpHandler->selector
1768 && OFFSETOF(address) >= gpHandler->rangeStart
1769 && OFFSETOF(address) < gpHandler->rangeEnd )
1770 return MAKESEGPTR( gpHandler->selector, gpHandler->handler );
1771 gpHandler++;
1772 }
1773 }
1774
1775 return 0;
1776 }
1777
1778
1779 /**********************************************************************
1780 * GetModuleHandle (KERNEL.47)
1781 *
1782 * Find a module from a module name.
1783 *
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)
1788 *
1789 * RETURNS
1790 * LOWORD:
1791 * the win16 module handle if found
1792 * 0 if not
1793 * HIWORD (undocumented, see "Undocumented Windows", chapter 5):
1794 * Always hFirstModule
1795 */
1796 DWORD WINAPI WIN16_GetModuleHandle( SEGPTR name )
1797 {
1798 if (HIWORD(name) == 0)
1799 return MAKELONG(GetExePtr( (HINSTANCE16)name), hFirstModule );
1800 return MAKELONG(GetModuleHandle16( MapSL(name)), hFirstModule );
1801 }
1802
1803 /**********************************************************************
1804 * NE_GetModuleByFilename
1805 */
1806 static HMODULE16 NE_GetModuleByFilename( LPCSTR name )
1807 {
1808 HMODULE16 hModule;
1809 LPSTR s, p;
1810 BYTE len, *name_table;
1811 char tmpstr[MAX_PATH];
1812 NE_MODULE *pModule;
1813
1814 lstrcpynA(tmpstr, name, sizeof(tmpstr));
1815
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.
1819 */
1820
1821 /* basename: search backwards in passed name to \ / or : */
1822 s = tmpstr + strlen(tmpstr);
1823 while (s > tmpstr)
1824 {
1825 if (s[-1]=='/' || s[-1]=='\\' || s[-1]==':')
1826 break;
1827 s--;
1828 }
1829
1830 /* search this in loaded filename list */
1831 for (hModule = hFirstModule; hModule ; hModule = pModule->next)
1832 {
1833 char *loadedfn;
1834 OFSTRUCT *ofs;
1835
1836 pModule = NE_GetPtr( hModule );
1837 if (!pModule) break;
1838 if (!pModule->fileinfo) continue;
1839 if (pModule->ne_flags & NE_FFLAGS_WIN32) continue;
1840
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)
1845 {
1846 if (loadedfn[-1]=='/' || loadedfn[-1]=='\\' || loadedfn[-1]==':')
1847 break;
1848 loadedfn--;
1849 }
1850 /* case insensitive compare ... */
1851 if (!NE_strcasecmp(loadedfn, s))
1852 return hModule;
1853 }
1854 /* If basename (without ext) matches the module name of a module:
1855 * Return its handle.
1856 */
1857
1858 if ( (p = strrchr( s, '.' )) != NULL ) *p = '\0';
1859 len = strlen(s);
1860
1861 for (hModule = hFirstModule; hModule ; hModule = pModule->next)
1862 {
1863 pModule = NE_GetPtr( hModule );
1864 if (!pModule) break;
1865 if (pModule->ne_flags & NE_FFLAGS_WIN32) continue;
1866
1867 name_table = (BYTE *)pModule + pModule->ne_restab;
1868 if ((*name_table == len) && !NE_strncasecmp(s, name_table+1, len))
1869 return hModule;
1870 }
1871
1872 return 0;
1873 }
1874
1875 /***********************************************************************
1876 * GetProcAddress16 (KERNEL32.37)
1877 * Get procaddress in 16bit module from win32... (kernel32 undoc. ordinal func)
1878 */
1879 FARPROC16 WINAPI WIN32_GetProcAddress16( HMODULE hModule, LPCSTR name )
1880 {
1881 if (!hModule) return 0;
1882 if (HIWORD(hModule))
1883 {
1884 WARN("hModule is Win32 handle (%p)\n", hModule );
1885 return 0;
1886 }
1887 return GetProcAddress16( LOWORD(hModule), name );
1888 }
1889
1890 /**********************************************************************
1891 * ModuleFirst (TOOLHELP.59)
1892 */
1893 BOOL16 WINAPI ModuleFirst16( MODULEENTRY *lpme )
1894 {
1895 lpme->wNext = hFirstModule;
1896 return ModuleNext16( lpme );
1897 }
1898
1899
1900 /**********************************************************************
1901 * ModuleNext (TOOLHELP.60)
1902 */
1903 BOOL16 WINAPI ModuleNext16( MODULEENTRY *lpme )
1904 {
1905 NE_MODULE *pModule;
1906 char *name;
1907
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;
1917 return TRUE;
1918 }
1919
1920
1921 /**********************************************************************
1922 * ModuleFindName (TOOLHELP.61)
1923 */
1924 BOOL16 WINAPI ModuleFindName16( MODULEENTRY *lpme, LPCSTR name )
1925 {
1926 lpme->wNext = GetModuleHandle16( name );
1927 return ModuleNext16( lpme );
1928 }
1929
1930
1931 /**********************************************************************
1932 * ModuleFindHandle (TOOLHELP.62)
1933 */
1934 BOOL16 WINAPI ModuleFindHandle16( MODULEENTRY *lpme, HMODULE16 hModule )
1935 {
1936 hModule = GetExePtr( hModule );
1937 lpme->wNext = hModule;
1938 return ModuleNext16( lpme );
1939 }
1940
1941
1942 /***************************************************************************
1943 * IsRomModule (KERNEL.323)
1944 */
1945 BOOL16 WINAPI IsRomModule16( HMODULE16 unused )
1946 {
1947 return FALSE;
1948 }
1949
1950 /***************************************************************************
1951 * IsRomFile (KERNEL.326)
1952 */
1953 BOOL16 WINAPI IsRomFile16( HFILE16 unused )
1954 {
1955 return FALSE;
1956 }
1957
1958 /***********************************************************************
1959 * create_dummy_module
1960 *
1961 * Create a dummy NE module for Win32 or Winelib.
1962 */
1963 static HMODULE16 create_dummy_module( HMODULE module32 )
1964 {
1965 HMODULE16 hModule;
1966 NE_MODULE *pModule;
1967 SEGTABLEENTRY *pSegment;
1968 char *pStr,*s;
1969 unsigned int len;
1970 const char* basename;
1971 OFSTRUCT *ofs;
1972 int of_size, size;
1973 char filename[MAX_PATH];
1974 IMAGE_NT_HEADERS *nt = RtlImageNtHeader( module32 );
1975
1976 if (!nt) return ERROR_BAD_FORMAT;
1977
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;
1983 else basename++;
1984 len = strlen(basename);
1985 if ((s = strchr(basename, '.'))) len = s - basename;
1986
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) +
1995 /* name table */
1996 len + 2 +
1997 /* several empty tables */
1998 8;
1999
2000 hModule = GlobalAlloc16( GMEM_MOVEABLE | GMEM_ZEROINIT, size );
2001 if (!hModule) return ERROR_BAD_FORMAT;
2002
2003 FarSetOwner16( hModule, hModule );
2004 pModule = (NE_MODULE *)GlobalLock16( hModule );
2005
2006 /* Set all used entries */
2007 pModule->ne_magic = IMAGE_OS2_SIGNATURE;
2008 pModule->count = 1;
2009 pModule->next = 0;
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;
2023
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;
2029
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 );
2035
2036 pSegment = (SEGTABLEENTRY*)((char*)(pModule + 1) + ((of_size + 3) & ~3));
2037 pModule->ne_segtab = (char *)pSegment - (char *)pModule;
2038 /* Data segment */
2039 pSegment->size = 0;
2040 pSegment->flags = NE_SEGFLAGS_DATA;
2041 pSegment->minsize = 0x1000;
2042 pSegment++;
2043 /* Code segment */
2044 pSegment->flags = 0;
2045 pSegment++;
2046
2047 /* Module name */
2048 pStr = (char *)pSegment;
2049 pModule->ne_restab = pStr - (char *)pModule;
2050 assert(len<256);
2051 *pStr = len;
2052 lstrcpynA( pStr+1, basename, len+1 );
2053 pStr += len+2;
2054
2055 /* All tables zero terminated */
2056 pModule->ne_rsrctab = pModule->ne_imptab = pModule->ne_enttab = (char *)pStr - (char *)pModule;
2057
2058 NE_RegisterModule( pModule );
2059 pModule->owner32 = LoadLibraryA( filename ); /* increment the ref count of the 32-bit module */
2060 return hModule;
2061 }
2062
2063 /***********************************************************************
2064 * PrivateLoadLibrary (KERNEL32.@)
2065 *
2066 * FIXME: rough guesswork, don't know what "Private" means
2067 */
2068 HINSTANCE16 WINAPI PrivateLoadLibrary(LPCSTR libname)
2069 {
2070 return LoadLibrary16(libname);
2071 }
2072
2073 /***********************************************************************
2074 * PrivateFreeLibrary (KERNEL32.@)
2075 *
2076 * FIXME: rough guesswork, don't know what "Private" means
2077 */
2078 void WINAPI PrivateFreeLibrary(HINSTANCE16 handle)
2079 {
2080 FreeLibrary16(handle);
2081 }
2082
2083 /***********************************************************************
2084 * LoadLibrary32 (KERNEL.452)
2085 * LoadSystemLibrary32 (KERNEL.482)
2086 */
2087 HMODULE WINAPI LoadLibrary32_16( LPCSTR libname )
2088 {
2089 HMODULE hModule;
2090 DWORD count;
2091
2092 ReleaseThunkLock( &count );
2093 hModule = LoadLibraryA( libname );
2094 RestoreThunkLock( count );
2095 return hModule;
2096 }
2097
2098 /***************************************************************************
2099 * MapHModuleLS (KERNEL32.@)
2100 */
2101 HMODULE16 WINAPI MapHModuleLS(HMODULE hmod)
2102 {
2103 HMODULE16 ret;
2104 NE_MODULE *pModule;
2105
2106 if (!hmod)
2107 return TASK_GetCurrent()->hInstance;
2108 if (!HIWORD(hmod))
2109 return LOWORD(hmod); /* we already have a 16 bit module handle */
2110 pModule = (NE_MODULE*)GlobalLock16(hFirstModule);
2111 while (pModule) {
2112 if (pModule->module32 == hmod)
2113 return pModule->self;
2114 pModule = (NE_MODULE*)GlobalLock16(pModule->next);
2115 }
2116 if ((ret = create_dummy_module( hmod )) < 32)
2117 {
2118 SetLastError(ret);
2119 ret = 0;
2120 }
2121 return ret;
2122 }
2123
2124 /***************************************************************************
2125 * MapHModuleSL (KERNEL32.@)
2126 */
2127 HMODULE WINAPI MapHModuleSL(HMODULE16 hmod)
2128 {
2129 NE_MODULE *pModule;
2130
2131 if (!hmod) {
2132 TDB *pTask = TASK_GetCurrent();
2133 hmod = pTask->hModule;
2134 }
2135 pModule = (NE_MODULE*)GlobalLock16(hmod);
2136 if ((pModule->ne_magic != IMAGE_OS2_SIGNATURE) || !(pModule->ne_flags & NE_FFLAGS_WIN32))
2137 return 0;
2138 return pModule->module32;
2139 }
2140
2141 /***************************************************************************
2142 * MapHInstLS (KERNEL32.@)
2143 * MapHInstLS (KERNEL.472)
2144 */
2145 void WINAPI __regs_MapHInstLS( CONTEXT86 *context )
2146 {
2147 context->Eax = MapHModuleLS( (HMODULE)context->Eax );
2148 }
2149 #ifdef DEFINE_REGS_ENTRYPOINT
2150 DEFINE_REGS_ENTRYPOINT( MapHInstLS, 0, 0 );
2151 #endif
2152
2153 /***************************************************************************
2154 * MapHInstSL (KERNEL32.@)
2155 * MapHInstSL (KERNEL.473)
2156 */
2157 void WINAPI __regs_MapHInstSL( CONTEXT86 *context )
2158 {
2159 context->Eax = (DWORD)MapHModuleSL( context->Eax );
2160 }
2161 #ifdef DEFINE_REGS_ENTRYPOINT
2162 DEFINE_REGS_ENTRYPOINT( MapHInstSL, 0, 0 );
2163 #endif
2164
2165 /***************************************************************************
2166 * MapHInstLS_PN (KERNEL32.@)
2167 */
2168 void WINAPI __regs_MapHInstLS_PN( CONTEXT86 *context )
2169 {
2170 if (context->Eax) context->Eax = MapHModuleLS( (HMODULE)context->Eax );
2171 }
2172 #ifdef DEFINE_REGS_ENTRYPOINT
2173 DEFINE_REGS_ENTRYPOINT( MapHInstLS_PN, 0, 0 );
2174 #endif
2175
2176 /***************************************************************************
2177 * MapHInstSL_PN (KERNEL32.@)
2178 */
2179 void WINAPI __regs_MapHInstSL_PN( CONTEXT86 *context )
2180 {
2181 if (context->Eax) context->Eax = (DWORD)MapHModuleSL( context->Eax );
2182 }
2183 #ifdef DEFINE_REGS_ENTRYPOINT
2184 DEFINE_REGS_ENTRYPOINT( MapHInstSL_PN, 0, 0 );
2185 #endif
Windows API implementation