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wgl: Fix wglGetProcAddress bug.
[wine/hacks.git] / dlls / kernel32 / ne_module.c
blob20a553436266bb2319bf022e956913bef5760b96
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 "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 /* patch all the flat cs references of the code segment if necessary */
94 inline static void patch_code_segment( NE_MODULE *pModule )
95 {
96 #ifdef __i386__
97 int i;
98 CALLFROM16 *call;
99 SEGTABLEENTRY *pSeg = NE_SEG_TABLE( pModule );
100
101 for (i = 0; i < pModule->ne_cseg; i++, pSeg++)
102 if (!(pSeg->flags & NE_SEGFLAGS_DATA)) break; /* found the code segment */
103
104 call = GlobalLock16( pSeg->hSeg );
105
106 /* patch glue code address and code selector */
107 for (i = 0; call[i].pushl == 0x68; i++)
108 {
109 if (call[i].ret[0] == 0xca66 || call[i].ret[0] == 0xcb66) /* register entry point? */
110 call[i].glue = __wine_call_from_16_regs;
111 else
112 call[i].glue = __wine_call_from_16;
113 call[i].flatcs = wine_get_cs();
114 }
115
116 if (TRACE_ON(relay)) /* patch relay functions to all point to relay_call_from_16 */
117 for (i = 0; call[i].pushl == 0x68; i++) call[i].relay = relay_call_from_16;
118 #endif
119 }
120
121
122 /***********************************************************************
123 * NE_strcasecmp
124 *
125 * locale-independent case conversion for module lookups
126 */
127 static int NE_strcasecmp( const char *str1, const char *str2 )
128 {
129 int ret = 0;
130 for ( ; ; str1++, str2++)
131 if ((ret = RtlUpperChar(*str1) - RtlUpperChar(*str2)) || !*str1) break;
132 return ret;
133 }
134
135
136 /***********************************************************************
137 * NE_strncasecmp
138 *
139 * locale-independent case conversion for module lookups
140 */
141 static int NE_strncasecmp( const char *str1, const char *str2, int len )
142 {
143 int ret = 0;
144 for ( ; len > 0; len--, str1++, str2++)
145 if ((ret = RtlUpperChar(*str1) - RtlUpperChar(*str2)) || !*str1) break;
146 return ret;
147 }
148
149
150 /***********************************************************************
151 * find_dll_descr
152 *
153 * Find a descriptor in the list
154 */
155 static const IMAGE_DOS_HEADER *find_dll_descr( const char *dllname, const char **file_name )
156 {
157 int i;
158 const IMAGE_DOS_HEADER *mz_header;
159 const IMAGE_OS2_HEADER *ne_header;
160 const BYTE *name_table;
161
162 for (i = 0; i < MAX_DLLS; i++)
163 {
164 mz_header = builtin_dlls[i].header;
165 if (mz_header)
166 {
167 ne_header = (const IMAGE_OS2_HEADER *)((const char *)mz_header + mz_header->e_lfanew);
168 name_table = (const BYTE *)ne_header + ne_header->ne_restab;
169
170 /* check the dll file name */
171 if (!NE_strcasecmp( builtin_dlls[i].file_name, dllname ) ||
172 /* check the dll module name (without extension) */
173 (!NE_strncasecmp( dllname, (const char*)name_table+1, *name_table ) &&
174 !strcmp( dllname + *name_table, ".dll" )))
175 {
176 *file_name = builtin_dlls[i].file_name;
177 return builtin_dlls[i].header;
178 }
179 }
180 }
181 return NULL;
182 }
183
184
185 /***********************************************************************
186 * __wine_dll_register_16 (KERNEL32.@)
187 *
188 * Register a built-in DLL descriptor.
189 */
190 void __wine_dll_register_16( const IMAGE_DOS_HEADER *header, const char *file_name )
191 {
192 int i;
193
194 for (i = 0; i < MAX_DLLS; i++)
195 {
196 if (builtin_dlls[i].header) continue;
197 builtin_dlls[i].header = header;
198 builtin_dlls[i].file_name = file_name;
199 break;
200 }
201 assert( i < MAX_DLLS );
202 }
203
204
205 /***********************************************************************
206 * __wine_dll_unregister_16 (KERNEL32.@)
207 *
208 * Unregister a built-in DLL descriptor.
209 */
210 void __wine_dll_unregister_16( const IMAGE_DOS_HEADER *header )
211 {
212 int i;
213
214 for (i = 0; i < MAX_DLLS; i++)
215 {
216 if (builtin_dlls[i].header != header) continue;
217 builtin_dlls[i].header = NULL;
218 break;
219 }
220 }
221
222
223 /***********************************************************************
224 * NE_GetPtr
225 */
226 NE_MODULE *NE_GetPtr( HMODULE16 hModule )
227 {
228 return (NE_MODULE *)GlobalLock16( GetExePtr(hModule) );
229 }
230
231
232 /**********************************************************************
233 * NE_RegisterModule
234 */
235 static void NE_RegisterModule( NE_MODULE *pModule )
236 {
237 pModule->next = hFirstModule;
238 hFirstModule = pModule->self;
239 }
240
241
242 /***********************************************************************
243 * NE_DumpModule
244 */
245 void NE_DumpModule( HMODULE16 hModule )
246 {
247 int i, ordinal;
248 SEGTABLEENTRY *pSeg;
249 BYTE *pstr;
250 WORD *pword;
251 NE_MODULE *pModule;
252 ET_BUNDLE *bundle;
253 ET_ENTRY *entry;
254
255 if (!(pModule = NE_GetPtr( hModule )))
256 {
257 ERR( "**** %04x is not a module handle\n", hModule );
258 return;
259 }
260
261 /* Dump the module info */
262 TRACE( "---\n" );
263 TRACE( "Module %04x:\n", hModule );
264 TRACE( "count=%d flags=%04x heap=%d stack=%d\n",
265 pModule->count, pModule->ne_flags,
266 pModule->ne_heap, pModule->ne_stack );
267 TRACE( "cs:ip=%04x:%04x ss:sp=%04x:%04x ds=%04x nb seg=%d modrefs=%d\n",
268 SELECTOROF(pModule->ne_csip), OFFSETOF(pModule->ne_csip),
269 SELECTOROF(pModule->ne_sssp), OFFSETOF(pModule->ne_sssp),
270 pModule->ne_autodata, pModule->ne_cseg, pModule->ne_cmod );
271 TRACE( "os_flags=%d swap_area=%d version=%04x\n",
272 pModule->ne_exetyp, pModule->ne_swaparea, pModule->ne_expver );
273 if (pModule->ne_flags & NE_FFLAGS_WIN32)
274 TRACE( "PE module=%p\n", pModule->module32 );
275
276 /* Dump the file info */
277 TRACE( "---\n" );
278 TRACE( "Filename: '%s'\n", NE_MODULE_NAME(pModule) );
279
280 /* Dump the segment table */
281 TRACE( "---\n" );
282 TRACE( "Segment table:\n" );
283 pSeg = NE_SEG_TABLE( pModule );
284 for (i = 0; i < pModule->ne_cseg; i++, pSeg++)
285 TRACE( "%02x: pos=%d size=%d flags=%04x minsize=%d hSeg=%04x\n",
286 i + 1, pSeg->filepos, pSeg->size, pSeg->flags,
287 pSeg->minsize, pSeg->hSeg );
288
289 /* Dump the resource table */
290 TRACE( "---\n" );
291 TRACE( "Resource table:\n" );
292 if (pModule->ne_rsrctab)
293 {
294 pword = (WORD *)((BYTE *)pModule + pModule->ne_rsrctab);
295 TRACE( "Alignment: %d\n", *pword++ );
296 while (*pword)
297 {
298 NE_TYPEINFO *ptr = (NE_TYPEINFO *)pword;
299 NE_NAMEINFO *pname = (NE_NAMEINFO *)(ptr + 1);
300 TRACE( "id=%04x count=%d\n", ptr->type_id, ptr->count );
301 for (i = 0; i < ptr->count; i++, pname++)
302 TRACE( "offset=%d len=%d id=%04x\n",
303 pname->offset, pname->length, pname->id );
304 pword = (WORD *)pname;
305 }
306 }
307 else TRACE( "None\n" );
308
309 /* Dump the resident name table */
310 TRACE( "---\n" );
311 TRACE( "Resident-name table:\n" );
312 pstr = (BYTE*) pModule + pModule->ne_restab;
313 while (*pstr)
314 {
315 TRACE( "%*.*s: %d\n", *pstr, *pstr, pstr + 1,
316 *(WORD *)(pstr + *pstr + 1) );
317 pstr += *pstr + 1 + sizeof(WORD);
318 }
319
320 /* Dump the module reference table */
321 TRACE( "---\n" );
322 TRACE( "Module ref table:\n" );
323 if (pModule->ne_modtab)
324 {
325 pword = (WORD *)((BYTE *)pModule + pModule->ne_modtab);
326 for (i = 0; i < pModule->ne_cmod; i++, pword++)
327 {
328 char name[10];
329 GetModuleName16( *pword, name, sizeof(name) );
330 TRACE( "%d: %04x -> '%s'\n", i, *pword, name );
331 }
332 }
333 else TRACE( "None\n" );
334
335 /* Dump the entry table */
336 TRACE( "---\n" );
337 TRACE( "Entry table:\n" );
338 bundle = (ET_BUNDLE *)((BYTE *)pModule+pModule->ne_enttab);
339 do {
340 entry = (ET_ENTRY *)((BYTE *)bundle+6);
341 TRACE( "Bundle %d-%d: %02x\n", bundle->first, bundle->last, entry->type);
342 ordinal = bundle->first;
343 while (ordinal < bundle->last)
344 {
345 if (entry->type == 0xff)
346 TRACE("%d: %02x:%04x (moveable)\n", ordinal++, entry->segnum, entry->offs);
347 else
348 TRACE("%d: %02x:%04x (fixed)\n", ordinal++, entry->segnum, entry->offs);
349 entry++;
350 }
351 } while ( (bundle->next) && (bundle = ((ET_BUNDLE *)((BYTE *)pModule + bundle->next))) );
352
353 /* Dump the non-resident names table */
354 TRACE( "---\n" );
355 TRACE( "Non-resident names table:\n" );
356 if (pModule->nrname_handle)
357 {
358 pstr = GlobalLock16( pModule->nrname_handle );
359 while (*pstr)
360 {
361 TRACE( "%*.*s: %d\n", *pstr, *pstr, pstr + 1,
362 *(WORD *)(pstr + *pstr + 1) );
363 pstr += *pstr + 1 + sizeof(WORD);
364 }
365 }
366 TRACE( "\n" );
367 }
368
369
370 /***********************************************************************
371 * NE_WalkModules
372 *
373 * Walk the module list and print the modules.
374 */
375 void NE_WalkModules(void)
376 {
377 HMODULE16 hModule = hFirstModule;
378 MESSAGE( "Module Flags Name\n" );
379 while (hModule)
380 {
381 NE_MODULE *pModule = NE_GetPtr( hModule );
382 if (!pModule)
383 {
384 MESSAGE( "Bad module %04x in list\n", hModule );
385 return;
386 }
387 MESSAGE( " %04x %04x %.*s\n", hModule, pModule->ne_flags,
388 *((char *)pModule + pModule->ne_restab),
389 (char *)pModule + pModule->ne_restab + 1 );
390 hModule = pModule->next;
391 }
392 }
393
394
395 /***********************************************************************
396 * NE_InitResourceHandler
397 *
398 * Fill in 'resloader' fields in the resource table.
399 */
400 static void NE_InitResourceHandler( HMODULE16 hModule )
401 {
402 static FARPROC16 proc;
403
404 NE_TYPEINFO *pTypeInfo;
405 NE_MODULE *pModule;
406
407 if (!(pModule = NE_GetPtr( hModule )) || !pModule->ne_rsrctab) return;
408
409 TRACE("InitResourceHandler[%04x]\n", hModule );
410
411 if (!proc) proc = GetProcAddress16( GetModuleHandle16("KERNEL"), "DefResourceHandler" );
412
413 pTypeInfo = (NE_TYPEINFO *)((char *)pModule + pModule->ne_rsrctab + 2);
414 while(pTypeInfo->type_id)
415 {
416 memcpy_unaligned( &pTypeInfo->resloader, &proc, sizeof(FARPROC16) );
417 pTypeInfo = (NE_TYPEINFO *)((char*)(pTypeInfo + 1) + pTypeInfo->count * sizeof(NE_NAMEINFO));
418 }
419 }
420
421
422 /***********************************************************************
423 * NE_GetOrdinal
424 *
425 * Lookup the ordinal for a given name.
426 */
427 WORD NE_GetOrdinal( HMODULE16 hModule, const char *name )
428 {
429 char buffer[256], *p;
430 BYTE *cpnt;
431 BYTE len;
432 NE_MODULE *pModule;
433
434 if (!(pModule = NE_GetPtr( hModule ))) return 0;
435 if (pModule->ne_flags & NE_FFLAGS_WIN32) return 0;
436
437 TRACE("(%04x,'%s')\n", hModule, name );
438
439 /* First handle names of the form '#xxxx' */
440
441 if (name[0] == '#') return atoi( name + 1 );
442
443 /* Now copy and uppercase the string */
444
445 strcpy( buffer, name );
446 for (p = buffer; *p; p++) *p = RtlUpperChar(*p);
447 len = p - buffer;
448
449 /* First search the resident names */
450
451 cpnt = (BYTE *)pModule + pModule->ne_restab;
452
453 /* Skip the first entry (module name) */
454 cpnt += *cpnt + 1 + sizeof(WORD);
455 while (*cpnt)
456 {
457 if ((*cpnt == len) && !memcmp( cpnt+1, buffer, len ))
458 {
459 WORD ordinal;
460 memcpy( &ordinal, cpnt + *cpnt + 1, sizeof(ordinal) );
461 TRACE(" Found: ordinal=%d\n", ordinal );
462 return ordinal;
463 }
464 cpnt += *cpnt + 1 + sizeof(WORD);
465 }
466
467 /* Now search the non-resident names table */
468
469 if (!pModule->nrname_handle) return 0; /* No non-resident table */
470 cpnt = GlobalLock16( pModule->nrname_handle );
471
472 /* Skip the first entry (module description string) */
473 cpnt += *cpnt + 1 + sizeof(WORD);
474 while (*cpnt)
475 {
476 if ((*cpnt == len) && !memcmp( cpnt+1, buffer, len ))
477 {
478 WORD ordinal;
479 memcpy( &ordinal, cpnt + *cpnt + 1, sizeof(ordinal) );
480 TRACE(" Found: ordinal=%d\n", ordinal );
481 return ordinal;
482 }
483 cpnt += *cpnt + 1 + sizeof(WORD);
484 }
485 return 0;
486 }
487
488
489 /***********************************************************************
490 * NE_GetEntryPoint
491 */
492 FARPROC16 WINAPI NE_GetEntryPoint( HMODULE16 hModule, WORD ordinal )
493 {
494 return NE_GetEntryPointEx( hModule, ordinal, TRUE );
495 }
496
497 /***********************************************************************
498 * NE_GetEntryPointEx
499 */
500 FARPROC16 NE_GetEntryPointEx( HMODULE16 hModule, WORD ordinal, BOOL16 snoop )
501 {
502 NE_MODULE *pModule;
503 WORD sel, offset, i;
504
505 ET_ENTRY *entry;
506 ET_BUNDLE *bundle;
507
508 if (!(pModule = NE_GetPtr( hModule ))) return 0;
509 assert( !(pModule->ne_flags & NE_FFLAGS_WIN32) );
510
511 bundle = (ET_BUNDLE *)((BYTE *)pModule + pModule->ne_enttab);
512 while ((ordinal < bundle->first + 1) || (ordinal > bundle->last))
513 {
514 if (!(bundle->next))
515 return 0;
516 bundle = (ET_BUNDLE *)((BYTE *)pModule + bundle->next);
517 }
518
519 entry = (ET_ENTRY *)((BYTE *)bundle+6);
520 for (i=0; i < (ordinal - bundle->first - 1); i++)
521 entry++;
522
523 sel = entry->segnum;
524 memcpy( &offset, &entry->offs, sizeof(WORD) );
525
526 if (sel == 0xfe) sel = 0xffff; /* constant entry */
527 else sel = GlobalHandleToSel16(NE_SEG_TABLE(pModule)[sel-1].hSeg);
528 if (sel==0xffff)
529 return (FARPROC16)MAKESEGPTR( sel, offset );
530 if (!snoop)
531 return (FARPROC16)MAKESEGPTR( sel, offset );
532 else
533 return (FARPROC16)SNOOP16_GetProcAddress16(hModule,ordinal,(FARPROC16)MAKESEGPTR( sel, offset ));
534 }
535
536
537 /***********************************************************************
538 * EntryAddrProc (KERNEL.667) Wine-specific export
539 *
540 * Return the entry point for a given ordinal.
541 */
542 FARPROC16 WINAPI EntryAddrProc16( HMODULE16 hModule, WORD ordinal )
543 {
544 FARPROC16 ret = NE_GetEntryPointEx( hModule, ordinal, TRUE );
545 CURRENT_STACK16->ecx = hModule; /* FIXME: might be incorrect value */
546 return ret;
547 }
548
549 /***********************************************************************
550 * NE_SetEntryPoint
551 *
552 * Change the value of an entry point. Use with caution!
553 * It can only change the offset value, not the selector.
554 */
555 BOOL16 NE_SetEntryPoint( HMODULE16 hModule, WORD ordinal, WORD offset )
556 {
557 NE_MODULE *pModule;
558 ET_ENTRY *entry;
559 ET_BUNDLE *bundle;
560 int i;
561
562 if (!(pModule = NE_GetPtr( hModule ))) return FALSE;
563 assert( !(pModule->ne_flags & NE_FFLAGS_WIN32) );
564
565 bundle = (ET_BUNDLE *)((BYTE *)pModule + pModule->ne_enttab);
566 while ((ordinal < bundle->first + 1) || (ordinal > bundle->last))
567 {
568 bundle = (ET_BUNDLE *)((BYTE *)pModule + bundle->next);
569 if (!(bundle->next)) return 0;
570 }
571
572 entry = (ET_ENTRY *)((BYTE *)bundle+6);
573 for (i=0; i < (ordinal - bundle->first - 1); i++)
574 entry++;
575
576 memcpy( &entry->offs, &offset, sizeof(WORD) );
577 return TRUE;
578 }
579
580
581 /***********************************************************************
582 * build_bundle_data
583 *
584 * Build the entry table bundle data from the on-disk format. Helper for build_module.
585 */
586 static void *build_bundle_data( NE_MODULE *pModule, void *dest, const BYTE *table )
587 {
588 ET_BUNDLE *oldbundle, *bundle = dest;
589 ET_ENTRY *entry;
590 BYTE nr_entries, type;
591
592 memset(bundle, 0, sizeof(ET_BUNDLE)); /* in case no entry table exists */
593 entry = (ET_ENTRY *)((BYTE *)bundle+6);
594
595 while ((nr_entries = *table++))
596 {
597 if ((type = *table++))
598 {
599 bundle->last += nr_entries;
600 if (type == 0xff)
601 {
602 while (nr_entries--)
603 {
604 entry->type = type;
605 entry->flags = *table++;
606 table += sizeof(WORD);
607 entry->segnum = *table++;
608 entry->offs = *(const WORD *)table;
609 table += sizeof(WORD);
610 entry++;
611 }
612 }
613 else
614 {
615 while (nr_entries--)
616 {
617 entry->type = type;
618 entry->flags = *table++;
619 entry->segnum = type;
620 entry->offs = *(const WORD *)table;
621 table += sizeof(WORD);
622 entry++;
623 }
624 }
625 }
626 else
627 {
628 if (bundle->first == bundle->last)
629 {
630 bundle->first += nr_entries;
631 bundle->last += nr_entries;
632 }
633 else
634 {
635 oldbundle = bundle;
636 oldbundle->next = (char *)entry - (char *)pModule;
637 bundle = (ET_BUNDLE *)entry;
638 bundle->first = bundle->last = oldbundle->last + nr_entries;
639 bundle->next = 0;
640 entry = (ET_ENTRY*)(((BYTE*)entry)+sizeof(ET_BUNDLE));
641 }
642 }
643 }
644 return entry;
645 }
646
647
648 /***********************************************************************
649 * build_module
650 *
651 * Build the in-memory module from the on-disk data.
652 */
653 static HMODULE16 build_module( const void *mapping, SIZE_T mapping_size, LPCSTR path )
654 {
655 const IMAGE_DOS_HEADER *mz_header = mapping;
656 const IMAGE_OS2_HEADER *ne_header;
657 const struct ne_segment_table_entry_s *pSeg;
658 const void *ptr;
659 int i;
660 size_t size;
661 HMODULE16 hModule;
662 NE_MODULE *pModule;
663 BYTE *buffer, *pData, *end;
664 OFSTRUCT *ofs;
665
666 if (mapping_size < sizeof(*mz_header)) return ERROR_BAD_FORMAT;
667 if (mz_header->e_magic != IMAGE_DOS_SIGNATURE) return ERROR_BAD_FORMAT;
668 ne_header = (const IMAGE_OS2_HEADER *)((const char *)mapping + mz_header->e_lfanew);
669 if (mz_header->e_lfanew + sizeof(*ne_header) > mapping_size) return ERROR_BAD_FORMAT;
670 if (ne_header->ne_magic == IMAGE_NT_SIGNATURE) return 21; /* win32 exe */
671 if (ne_header->ne_magic == IMAGE_OS2_SIGNATURE_LX)
672 {
673 MESSAGE("Sorry, %s is an OS/2 linear executable (LX) file!\n", path);
674 return 12;
675 }
676 if (ne_header->ne_magic != IMAGE_OS2_SIGNATURE) return ERROR_BAD_FORMAT;
677
678 /* We now have a valid NE header */
679
680 /* check to be able to fall back to loading OS/2 programs as DOS
681 * FIXME: should this check be reversed in order to be less strict?
682 * (only fail for OS/2 ne_exetyp 0x01 here?) */
683 if ((ne_header->ne_exetyp != 0x02 /* Windows */)
684 && (ne_header->ne_exetyp != 0x04) /* Windows 386 */)
685 return ERROR_BAD_FORMAT;
686
687 size = sizeof(NE_MODULE) +
688 /* segment table */
689 ne_header->ne_cseg * sizeof(SEGTABLEENTRY) +
690 /* resource table */
691 ne_header->ne_restab - ne_header->ne_rsrctab +
692 /* resident names table */
693 ne_header->ne_modtab - ne_header->ne_restab +
694 /* module ref table */
695 ne_header->ne_cmod * sizeof(WORD) +
696 /* imported names table */
697 ne_header->ne_enttab - ne_header->ne_imptab +
698 /* entry table length */
699 ne_header->ne_cbenttab +
700 /* entry table extra conversion space */
701 sizeof(ET_BUNDLE) +
702 2 * (ne_header->ne_cbenttab - ne_header->ne_cmovent*6) +
703 /* loaded file info */
704 sizeof(OFSTRUCT) - sizeof(ofs->szPathName) + strlen(path) + 1;
705
706 hModule = GlobalAlloc16( GMEM_FIXED | GMEM_ZEROINIT, size );
707 if (!hModule) return ERROR_BAD_FORMAT;
708
709 FarSetOwner16( hModule, hModule );
710 pModule = (NE_MODULE *)GlobalLock16( hModule );
711 memcpy( pModule, ne_header, sizeof(*ne_header) );
712 pModule->count = 0;
713 /* check programs for default minimal stack size */
714 if (!(pModule->ne_flags & NE_FFLAGS_LIBMODULE) && (pModule->ne_stack < 0x1400))
715 pModule->ne_stack = 0x1400;
716
717 pModule->self = hModule;
718 pModule->mapping = mapping;
719 pModule->mapping_size = mapping_size;
720
721 pData = (BYTE *)(pModule + 1);
722
723 /* Clear internal Wine flags in case they are set in the EXE file */
724
725 pModule->ne_flags &= ~(NE_FFLAGS_BUILTIN | NE_FFLAGS_WIN32);
726
727 /* Get the segment table */
728
729 pModule->ne_segtab = pData - (BYTE *)pModule;
730 if (!(pSeg = NE_GET_DATA( pModule, mz_header->e_lfanew + ne_header->ne_segtab,
731 ne_header->ne_cseg * sizeof(struct ne_segment_table_entry_s) )))
732 goto failed;
733 for (i = ne_header->ne_cseg; i > 0; i--, pSeg++)
734 {
735 memcpy( pData, pSeg, sizeof(*pSeg) );
736 pData += sizeof(SEGTABLEENTRY);
737 }
738
739 /* Get the resource table */
740
741 if (ne_header->ne_rsrctab < ne_header->ne_restab)
742 {
743 pModule->ne_rsrctab = pData - (BYTE *)pModule;
744 if (!NE_READ_DATA( pModule, pData, mz_header->e_lfanew + ne_header->ne_rsrctab,
745 ne_header->ne_restab - ne_header->ne_rsrctab )) goto failed;
746 pData += ne_header->ne_restab - ne_header->ne_rsrctab;
747 }
748 else pModule->ne_rsrctab = 0; /* No resource table */
749
750 /* Get the resident names table */
751
752 pModule->ne_restab = pData - (BYTE *)pModule;
753 if (!NE_READ_DATA( pModule, pData, mz_header->e_lfanew + ne_header->ne_restab,
754 ne_header->ne_modtab - ne_header->ne_restab )) goto failed;
755 pData += ne_header->ne_modtab - ne_header->ne_restab;
756
757 /* Get the module references table */
758
759 if (ne_header->ne_cmod > 0)
760 {
761 pModule->ne_modtab = pData - (BYTE *)pModule;
762 if (!NE_READ_DATA( pModule, pData, mz_header->e_lfanew + ne_header->ne_modtab,
763 ne_header->ne_cmod * sizeof(WORD) )) goto failed;
764 pData += ne_header->ne_cmod * sizeof(WORD);
765 }
766 else pModule->ne_modtab = 0; /* No module references */
767
768 /* Get the imported names table */
769
770 pModule->ne_imptab = pData - (BYTE *)pModule;
771 if (!NE_READ_DATA( pModule, pData, mz_header->e_lfanew + ne_header->ne_imptab,
772 ne_header->ne_enttab - ne_header->ne_imptab )) goto failed;
773 pData += ne_header->ne_enttab - ne_header->ne_imptab;
774
775 /* Load entry table, convert it to the optimized version used by Windows */
776
777 pModule->ne_enttab = pData - (BYTE *)pModule;
778 if (!(ptr = NE_GET_DATA( pModule, mz_header->e_lfanew + ne_header->ne_enttab,
779 ne_header->ne_cbenttab ))) goto failed;
780 end = build_bundle_data( pModule, pData, ptr );
781
782 pData += ne_header->ne_cbenttab + sizeof(ET_BUNDLE) +
783 2 * (ne_header->ne_cbenttab - ne_header->ne_cmovent*6);
784
785 if (end > pData)
786 {
787 FIXME( "not enough space for entry table for %s\n", debugstr_a(path) );
788 goto failed;
789 }
790
791 /* Store the filename information */
792
793 pModule->fileinfo = pData - (BYTE *)pModule;
794 ofs = (OFSTRUCT *)pData;
795 ofs->cBytes = sizeof(OFSTRUCT) - sizeof(ofs->szPathName) + strlen(path);
796 ofs->fFixedDisk = 1;
797 strcpy( ofs->szPathName, path );
798 pData += ofs->cBytes + 1;
799 assert( (BYTE *)pModule + size <= pData );
800
801 /* Get the non-resident names table */
802
803 if (ne_header->ne_cbnrestab)
804 {
805 pModule->nrname_handle = GlobalAlloc16( 0, ne_header->ne_cbnrestab );
806 if (!pModule->nrname_handle) goto failed;
807 FarSetOwner16( pModule->nrname_handle, hModule );
808 buffer = GlobalLock16( pModule->nrname_handle );
809 if (!NE_READ_DATA( pModule, buffer, ne_header->ne_nrestab, ne_header->ne_cbnrestab ))
810 {
811 GlobalFree16( pModule->nrname_handle );
812 goto failed;
813 }
814 }
815 else pModule->nrname_handle = 0;
816
817 /* Allocate a segment for the implicitly-loaded DLLs */
818
819 if (pModule->ne_cmod)
820 {
821 pModule->dlls_to_init = GlobalAlloc16( GMEM_ZEROINIT,
822 (pModule->ne_cmod+1)*sizeof(HMODULE16) );
823 if (!pModule->dlls_to_init)
824 {
825 if (pModule->nrname_handle) GlobalFree16( pModule->nrname_handle );
826 goto failed;
827 }
828 FarSetOwner16( pModule->dlls_to_init, hModule );
829 }
830 else pModule->dlls_to_init = 0;
831
832 NE_RegisterModule( pModule );
833 return hModule;
834
835 failed:
836 GlobalFree16( hModule );
837 return ERROR_BAD_FORMAT;
838 }
839
840
841 /***********************************************************************
842 * NE_LoadDLLs
843 *
844 * Load all DLLs implicitly linked to a module.
845 */
846 static BOOL NE_LoadDLLs( NE_MODULE *pModule )
847 {
848 int i;
849 WORD *pModRef = (WORD *)((char *)pModule + pModule->ne_modtab);
850 WORD *pDLLs = (WORD *)GlobalLock16( pModule->dlls_to_init );
851
852 for (i = 0; i < pModule->ne_cmod; i++, pModRef++)
853 {
854 char buffer[260], *p;
855 BYTE *pstr = (BYTE *)pModule + pModule->ne_imptab + *pModRef;
856 memcpy( buffer, pstr + 1, *pstr );
857 *(buffer + *pstr) = 0; /* terminate it */
858
859 TRACE("Loading '%s'\n", buffer );
860 if (!(*pModRef = GetModuleHandle16( buffer )))
861 {
862 /* If the DLL is not loaded yet, load it and store */
863 /* its handle in the list of DLLs to initialize. */
864 HMODULE16 hDLL;
865
866 /* Append .DLL to name if no extension present */
867 if (!(p = strrchr( buffer, '.')) || strchr( p, '/' ) || strchr( p, '\\'))
868 strcat( buffer, ".DLL" );
869
870 if ((hDLL = MODULE_LoadModule16( buffer, TRUE, TRUE )) < 32)
871 {
872 /* FIXME: cleanup what was done */
873
874 MESSAGE( "Could not load '%s' required by '%.*s', error=%d\n",
875 buffer, *((BYTE*)pModule + pModule->ne_restab),
876 (char *)pModule + pModule->ne_restab + 1, hDLL );
877 return FALSE;
878 }
879 *pModRef = GetExePtr( hDLL );
880 *pDLLs++ = *pModRef;
881 }
882 else /* Increment the reference count of the DLL */
883 {
884 NE_MODULE *pOldDLL = NE_GetPtr( *pModRef );
885 if (pOldDLL) pOldDLL->count++;
886 }
887 }
888 return TRUE;
889 }
890
891
892 /**********************************************************************
893 * NE_DoLoadModule
894 *
895 * Load first instance of NE module from file.
896 *
897 * pModule must point to a module structure prepared by build_module.
898 * This routine must never be called twice on a module.
899 */
900 static HINSTANCE16 NE_DoLoadModule( NE_MODULE *pModule )
901 {
902 /* Allocate the segments for this module */
903
904 if (!NE_CreateAllSegments( pModule ))
905 return ERROR_NOT_ENOUGH_MEMORY; /* 8 */
906
907 /* Load the referenced DLLs */
908
909 if (!NE_LoadDLLs( pModule ))
910 return ERROR_FILE_NOT_FOUND; /* 2 */
911
912 /* Load the segments */
913
914 NE_LoadAllSegments( pModule );
915
916 /* Make sure the usage count is 1 on the first loading of */
917 /* the module, even if it contains circular DLL references */
918
919 pModule->count = 1;
920
921 return NE_GetInstance( pModule );
922 }
923
924 /**********************************************************************
925 * NE_LoadModule
926 *
927 * Load first instance of NE module. (Note: caller is responsible for
928 * ensuring the module isn't already loaded!)
929 *
930 * If the module turns out to be an executable module, only a
931 * handle to a module stub is returned; this needs to be initialized
932 * by calling NE_DoLoadModule later, in the context of the newly
933 * created process.
934 *
935 * If lib_only is TRUE, however, the module is perforce treated
936 * like a DLL module, even if it is an executable module.
937 *
938 */
939 static HINSTANCE16 NE_LoadModule( LPCSTR name, BOOL lib_only )
940 {
941 NE_MODULE *pModule;
942 HMODULE16 hModule;
943 HINSTANCE16 hInstance;
944 HFILE16 hFile;
945 OFSTRUCT ofs;
946 HANDLE mapping;
947 void *ptr;
948 MEMORY_BASIC_INFORMATION info;
949
950 /* Open file */
951 if ((hFile = OpenFile16( name, &ofs, OF_READ|OF_SHARE_DENY_WRITE )) == HFILE_ERROR16)
952 return ERROR_FILE_NOT_FOUND;
953
954 mapping = CreateFileMappingW( DosFileHandleToWin32Handle(hFile), NULL, PAGE_WRITECOPY, 0, 0, NULL );
955 _lclose16( hFile );
956 if (!mapping) return ERROR_BAD_FORMAT;
957
958 ptr = MapViewOfFile( mapping, FILE_MAP_COPY, 0, 0, 0 );
959 CloseHandle( mapping );
960 if (!ptr) return ERROR_BAD_FORMAT;
961
962 VirtualQuery( ptr, &info, sizeof(info) );
963 hModule = build_module( ptr, info.RegionSize, ofs.szPathName );
964
965 if (hModule < 32)
966 {
967 UnmapViewOfFile( ptr );
968 return hModule;
969 }
970
971 SNOOP16_RegisterDLL( hModule, ofs.szPathName );
972 NE_InitResourceHandler( hModule );
973
974 pModule = NE_GetPtr( hModule );
975
976 if ( !lib_only && !( pModule->ne_flags & NE_FFLAGS_LIBMODULE ) )
977 return hModule;
978
979 hInstance = NE_DoLoadModule( pModule );
980 if ( hInstance < 32 )
981 {
982 /* cleanup ... */
983 NE_FreeModule( hModule, 0 );
984 }
985
986 return hInstance;
987 }
988
989
990 /***********************************************************************
991 * NE_DoLoadBuiltinModule
992 *
993 * Load a built-in Win16 module. Helper function for NE_LoadBuiltinModule.
994 */
995 static HMODULE16 NE_DoLoadBuiltinModule( const IMAGE_DOS_HEADER *mz_header, const char *file_name,
996 HMODULE owner32 )
997 {
998 NE_MODULE *pModule;
999 HMODULE16 hModule;
1000 HINSTANCE16 hInstance;
1001 OSVERSIONINFOW versionInfo;
1002 const IMAGE_OS2_HEADER *ne_header;
1003 SIZE_T mapping_size = ~0UL; /* assume builtins don't contain invalid offsets... */
1004
1005 ne_header = (const IMAGE_OS2_HEADER *)((const BYTE *)mz_header + mz_header->e_lfanew);
1006 hModule = build_module( mz_header, mapping_size, file_name );
1007 if (hModule < 32) return hModule;
1008 pModule = GlobalLock16( hModule );
1009 pModule->ne_flags |= NE_FFLAGS_BUILTIN;
1010 pModule->owner32 = owner32;
1011
1012 /* fake the expected version the module should have according to the current Windows version */
1013 versionInfo.dwOSVersionInfoSize = sizeof(versionInfo);
1014 if (GetVersionExW( &versionInfo ))
1015 pModule->ne_expver = MAKEWORD( versionInfo.dwMinorVersion, versionInfo.dwMajorVersion );
1016
1017 hInstance = NE_DoLoadModule( pModule );
1018 if (hInstance < 32) NE_FreeModule( hModule, 0 );
1019
1020 NE_InitResourceHandler( hModule );
1021
1022 if (pModule->ne_heap)
1023 {
1024 SEGTABLEENTRY *pSeg = NE_SEG_TABLE( pModule ) + pModule->ne_autodata - 1;
1025 unsigned int size = pSeg->minsize + pModule->ne_heap;
1026 if (size > 0xfffe) size = 0xfffe;
1027 LocalInit16( GlobalHandleToSel16(pSeg->hSeg), pSeg->minsize, size );
1028 }
1029
1030 patch_code_segment( pModule );
1031
1032 return hInstance;
1033 }
1034
1035
1036 /**********************************************************************
1037 * MODULE_LoadModule16
1038 *
1039 * Load a NE module in the order of the loadorder specification.
1040 * The caller is responsible that the module is not loaded already.
1041 *
1042 */
1043 static HINSTANCE16 MODULE_LoadModule16( LPCSTR libname, BOOL implicit, BOOL lib_only )
1044 {
1045 HINSTANCE16 hinst = 2;
1046 HMODULE16 hModule;
1047 HMODULE mod32 = 0;
1048 NE_MODULE *pModule;
1049 const IMAGE_DOS_HEADER *descr = NULL;
1050 const char *file_name = NULL;
1051 char dllname[20], owner[20], *p;
1052 const char *basename;
1053 int owner_exists;
1054
1055 /* strip path information */
1056
1057 basename = libname;
1058 if (basename[0] && basename[1] == ':') basename += 2; /* strip drive specification */
1059 if ((p = strrchr( basename, '\\' ))) basename = p + 1;
1060 if ((p = strrchr( basename, '/' ))) basename = p + 1;
1061
1062 if (strlen(basename) < sizeof(dllname)-4)
1063 {
1064 strcpy( dllname, basename );
1065 p = strrchr( dllname, '.' );
1066 if (!p) strcat( dllname, ".dll" );
1067 for (p = dllname; *p; p++) if (*p >= 'A' && *p <= 'Z') *p += 32;
1068
1069 if (wine_dll_get_owner( dllname, owner, sizeof(owner), &owner_exists ) != -1)
1070 {
1071 mod32 = LoadLibraryA( owner );
1072 if (mod32)
1073 {
1074 if (!(descr = find_dll_descr( dllname, &file_name )))
1075 {
1076 FreeLibrary( mod32 );
1077 owner_exists = 0;
1078 }
1079 /* loading the 32-bit library can have the side effect of loading the module */
1080 /* if so, simply incr the ref count and return the module */
1081 if ((hModule = GetModuleHandle16( libname )))
1082 {
1083 TRACE( "module %s already loaded by owner\n", libname );
1084 pModule = NE_GetPtr( hModule );
1085 if (pModule) pModule->count++;
1086 FreeLibrary( mod32 );
1087 return hModule;
1088 }
1089 }
1090 else
1091 {
1092 /* it's probably disabled by the load order config */
1093 WARN( "couldn't load owner %s for 16-bit dll %s\n", owner, dllname );
1094 return ERROR_FILE_NOT_FOUND;
1095 }
1096 }
1097 }
1098
1099 if (descr)
1100 {
1101 TRACE("Trying built-in '%s'\n", libname);
1102 hinst = NE_DoLoadBuiltinModule( descr, file_name, mod32 );
1103 if (hinst > 32) TRACE_(loaddll)("Loaded module %s : builtin\n", debugstr_a(file_name));
1104 }
1105 else
1106 {
1107 TRACE("Trying native dll '%s'\n", libname);
1108 hinst = NE_LoadModule(libname, lib_only);
1109 if (hinst > 32) TRACE_(loaddll)("Loaded module %s : native\n", debugstr_a(libname));
1110 if (hinst == ERROR_FILE_NOT_FOUND && owner_exists) hinst = 21; /* win32 module */
1111 }
1112
1113 if (hinst > 32 && !implicit)
1114 {
1115 hModule = GetModuleHandle16(libname);
1116 if(!hModule)
1117 {
1118 ERR("Serious trouble. Just loaded module '%s' (hinst=0x%04x), but can't get module handle. Filename too long ?\n",
1119 libname, hinst);
1120 return ERROR_INVALID_HANDLE;
1121 }
1122
1123 pModule = NE_GetPtr(hModule);
1124 if(!pModule)
1125 {
1126 ERR("Serious trouble. Just loaded module '%s' (hinst=0x%04x), but can't get NE_MODULE pointer\n",
1127 libname, hinst);
1128 return ERROR_INVALID_HANDLE;
1129 }
1130
1131 TRACE("Loaded module '%s' at 0x%04x.\n", libname, hinst);
1132
1133 /*
1134 * Call initialization routines for all loaded DLLs. Note that
1135 * when we load implicitly linked DLLs this will be done by InitTask().
1136 */
1137 if(pModule->ne_flags & NE_FFLAGS_LIBMODULE)
1138 {
1139 NE_InitializeDLLs(hModule);
1140 NE_DllProcessAttach(hModule);
1141 }
1142 }
1143 return hinst; /* The last error that occurred */
1144 }
1145
1146
1147 /**********************************************************************
1148 * NE_CreateThread
1149 *
1150 * Create the thread for a 16-bit module.
1151 */
1152 static HINSTANCE16 NE_CreateThread( NE_MODULE *pModule, WORD cmdShow, LPCSTR cmdline )
1153 {
1154 HANDLE hThread;
1155 TDB *pTask;
1156 HTASK16 hTask;
1157 HINSTANCE16 instance = 0;
1158
1159 if (!(hTask = TASK_SpawnTask( pModule, cmdShow, cmdline + 1, *cmdline, &hThread )))
1160 return 0;
1161
1162 /* Post event to start the task */
1163 PostEvent16( hTask );
1164
1165 /* Wait until we get the instance handle */
1166 do
1167 {
1168 DirectedYield16( hTask );
1169 if (!IsTask16( hTask )) /* thread has died */
1170 {
1171 DWORD exit_code;
1172 WaitForSingleObject( hThread, INFINITE );
1173 GetExitCodeThread( hThread, &exit_code );
1174 CloseHandle( hThread );
1175 return exit_code;
1176 }
1177 if (!(pTask = GlobalLock16( hTask ))) break;
1178 instance = pTask->hInstance;
1179 GlobalUnlock16( hTask );
1180 } while (!instance);
1181
1182 CloseHandle( hThread );
1183 return instance;
1184 }
1185
1186
1187 /**********************************************************************
1188 * LoadModule (KERNEL.45)
1189 */
1190 HINSTANCE16 WINAPI LoadModule16( LPCSTR name, LPVOID paramBlock )
1191 {
1192 BOOL lib_only = !paramBlock || (paramBlock == (LPVOID)-1);
1193 LOADPARAMS16 *params;
1194 HMODULE16 hModule;
1195 NE_MODULE *pModule;
1196 LPSTR cmdline;
1197 WORD cmdShow;
1198
1199 if (name == NULL) return 0;
1200
1201 /* Load module */
1202
1203 if ( (hModule = NE_GetModuleByFilename(name) ) != 0 )
1204 {
1205 /* Special case: second instance of an already loaded NE module */
1206
1207 if ( !( pModule = NE_GetPtr( hModule ) ) ) return ERROR_BAD_FORMAT;
1208 if ( pModule->module32 ) return (HINSTANCE16)21;
1209
1210 /* Increment refcount */
1211
1212 pModule->count++;
1213 }
1214 else
1215 {
1216 /* Main case: load first instance of NE module */
1217
1218 if ( (hModule = MODULE_LoadModule16( name, FALSE, lib_only )) < 32 )
1219 return hModule;
1220
1221 if ( !(pModule = NE_GetPtr( hModule )) )
1222 return ERROR_BAD_FORMAT;
1223 }
1224
1225 /* If library module, we just retrieve the instance handle */
1226
1227 if ( ( pModule->ne_flags & NE_FFLAGS_LIBMODULE ) || lib_only )
1228 return NE_GetInstance( pModule );
1229
1230 /*
1231 * At this point, we need to create a new process.
1232 *
1233 * pModule points either to an already loaded module, whose refcount
1234 * has already been incremented (to avoid having the module vanish
1235 * in the meantime), or else to a stub module which contains only header
1236 * information.
1237 */
1238 params = (LOADPARAMS16 *)paramBlock;
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 DWORD count;
1711 ReleaseThunkLock( &count );
1712 ret = LOWORD( WinExec( lpCmdLine, nCmdShow ) );
1713 RestoreThunkLock( count );
1714 }
1715 return ret;
1716 }
1717
1718 /***********************************************************************
1719 * GetProcAddress (KERNEL.50)
1720 */
1721 FARPROC16 WINAPI GetProcAddress16( HMODULE16 hModule, LPCSTR name )
1722 {
1723 WORD ordinal;
1724 FARPROC16 ret;
1725
1726 if (!hModule) hModule = GetCurrentTask();
1727 hModule = GetExePtr( hModule );
1728
1729 if (HIWORD(name) != 0)
1730 {
1731 ordinal = NE_GetOrdinal( hModule, name );
1732 TRACE("%04x '%s'\n", hModule, name );
1733 }
1734 else
1735 {
1736 ordinal = LOWORD(name);
1737 TRACE("%04x %04x\n", hModule, ordinal );
1738 }
1739 if (!ordinal) return (FARPROC16)0;
1740
1741 ret = NE_GetEntryPoint( hModule, ordinal );
1742
1743 TRACE("returning %p\n", ret );
1744 return ret;
1745 }
1746
1747
1748 /***************************************************************************
1749 * HasGPHandler (KERNEL.338)
1750 */
1751 SEGPTR WINAPI HasGPHandler16( SEGPTR address )
1752 {
1753 HMODULE16 hModule;
1754 int gpOrdinal;
1755 SEGPTR gpPtr;
1756 GPHANDLERDEF *gpHandler;
1757
1758 if ( (hModule = FarGetOwner16( SELECTOROF(address) )) != 0
1759 && (gpOrdinal = NE_GetOrdinal( hModule, "__GP" )) != 0
1760 && (gpPtr = (SEGPTR)NE_GetEntryPointEx( hModule, gpOrdinal, FALSE )) != 0
1761 && !IsBadReadPtr16( gpPtr, sizeof(GPHANDLERDEF) )
1762 && (gpHandler = MapSL( gpPtr )) != NULL )
1763 {
1764 while (gpHandler->selector)
1765 {
1766 if ( SELECTOROF(address) == gpHandler->selector
1767 && OFFSETOF(address) >= gpHandler->rangeStart
1768 && OFFSETOF(address) < gpHandler->rangeEnd )
1769 return MAKESEGPTR( gpHandler->selector, gpHandler->handler );
1770 gpHandler++;
1771 }
1772 }
1773
1774 return 0;
1775 }
1776
1777
1778 /**********************************************************************
1779 * GetModuleHandle (KERNEL.47)
1780 *
1781 * Find a module from a module name.
1782 *
1783 * NOTE: The current implementation works the same way the Windows 95 one
1784 * does. Do not try to 'fix' it, fix the callers.
1785 * + It does not do ANY extension handling (except that strange .EXE bit)!
1786 * + It does not care about paths, just about basenames. (same as Windows)
1787 *
1788 * RETURNS
1789 * LOWORD:
1790 * the win16 module handle if found
1791 * 0 if not
1792 * HIWORD (undocumented, see "Undocumented Windows", chapter 5):
1793 * Always hFirstModule
1794 */
1795 DWORD WINAPI WIN16_GetModuleHandle( SEGPTR name )
1796 {
1797 if (HIWORD(name) == 0)
1798 return MAKELONG(GetExePtr( (HINSTANCE16)name), hFirstModule );
1799 return MAKELONG(GetModuleHandle16( MapSL(name)), hFirstModule );
1800 }
1801
1802 /**********************************************************************
1803 * NE_GetModuleByFilename
1804 */
1805 static HMODULE16 NE_GetModuleByFilename( LPCSTR name )
1806 {
1807 HMODULE16 hModule;
1808 LPSTR s, p;
1809 BYTE len, *name_table;
1810 char tmpstr[MAX_PATH];
1811 NE_MODULE *pModule;
1812
1813 lstrcpynA(tmpstr, name, sizeof(tmpstr));
1814
1815 /* If the base filename of 'name' matches the base filename of the module
1816 * filename of some module (case-insensitive compare):
1817 * Return its handle.
1818 */
1819
1820 /* basename: search backwards in passed name to \ / or : */
1821 s = tmpstr + strlen(tmpstr);
1822 while (s > tmpstr)
1823 {
1824 if (s[-1]=='/' || s[-1]=='\\' || s[-1]==':')
1825 break;
1826 s--;
1827 }
1828
1829 /* search this in loaded filename list */
1830 for (hModule = hFirstModule; hModule ; hModule = pModule->next)
1831 {
1832 char *loadedfn;
1833 OFSTRUCT *ofs;
1834
1835 pModule = NE_GetPtr( hModule );
1836 if (!pModule) break;
1837 if (!pModule->fileinfo) continue;
1838 if (pModule->ne_flags & NE_FFLAGS_WIN32) continue;
1839
1840 ofs = (OFSTRUCT*)((BYTE *)pModule + pModule->fileinfo);
1841 loadedfn = ((char*)ofs->szPathName) + strlen(ofs->szPathName);
1842 /* basename: search backwards in pathname to \ / or : */
1843 while (loadedfn > (char*)ofs->szPathName)
1844 {
1845 if (loadedfn[-1]=='/' || loadedfn[-1]=='\\' || loadedfn[-1]==':')
1846 break;
1847 loadedfn--;
1848 }
1849 /* case insensitive compare ... */
1850 if (!NE_strcasecmp(loadedfn, s))
1851 return hModule;
1852 }
1853 /* If basename (without ext) matches the module name of a module:
1854 * Return its handle.
1855 */
1856
1857 if ( (p = strrchr( s, '.' )) != NULL ) *p = '\0';
1858 len = strlen(s);
1859
1860 for (hModule = hFirstModule; hModule ; hModule = pModule->next)
1861 {
1862 pModule = NE_GetPtr( hModule );
1863 if (!pModule) break;
1864 if (pModule->ne_flags & NE_FFLAGS_WIN32) continue;
1865
1866 name_table = (BYTE *)pModule + pModule->ne_restab;
1867 if ((*name_table == len) && !NE_strncasecmp(s, (const char*)name_table+1, len))
1868 return hModule;
1869 }
1870
1871 return 0;
1872 }
1873
1874 /***********************************************************************
1875 * GetProcAddress16 (KERNEL32.37)
1876 * Get procaddress in 16bit module from win32... (kernel32 undoc. ordinal func)
1877 */
1878 FARPROC16 WINAPI WIN32_GetProcAddress16( HMODULE hModule, LPCSTR name )
1879 {
1880 if (!hModule) return 0;
1881 if (HIWORD(hModule))
1882 {
1883 WARN("hModule is Win32 handle (%p)\n", hModule );
1884 return 0;
1885 }
1886 return GetProcAddress16( LOWORD(hModule), name );
1887 }
1888
1889 /**********************************************************************
1890 * ModuleFirst (TOOLHELP.59)
1891 */
1892 BOOL16 WINAPI ModuleFirst16( MODULEENTRY *lpme )
1893 {
1894 lpme->wNext = hFirstModule;
1895 return ModuleNext16( lpme );
1896 }
1897
1898
1899 /**********************************************************************
1900 * ModuleNext (TOOLHELP.60)
1901 */
1902 BOOL16 WINAPI ModuleNext16( MODULEENTRY *lpme )
1903 {
1904 NE_MODULE *pModule;
1905 char *name;
1906
1907 if (!lpme->wNext) return FALSE;
1908 if (!(pModule = NE_GetPtr( lpme->wNext ))) return FALSE;
1909 name = (char *)pModule + pModule->ne_restab;
1910 memcpy( lpme->szModule, name + 1, min(*name, MAX_MODULE_NAME) );
1911 lpme->szModule[min(*name, MAX_MODULE_NAME)] = '\0';
1912 lpme->hModule = lpme->wNext;
1913 lpme->wcUsage = pModule->count;
1914 lstrcpynA( lpme->szExePath, NE_MODULE_NAME(pModule), sizeof(lpme->szExePath) );
1915 lpme->wNext = pModule->next;
1916 return TRUE;
1917 }
1918
1919
1920 /**********************************************************************
1921 * ModuleFindName (TOOLHELP.61)
1922 */
1923 BOOL16 WINAPI ModuleFindName16( MODULEENTRY *lpme, LPCSTR name )
1924 {
1925 lpme->wNext = GetModuleHandle16( name );
1926 return ModuleNext16( lpme );
1927 }
1928
1929
1930 /**********************************************************************
1931 * ModuleFindHandle (TOOLHELP.62)
1932 */
1933 BOOL16 WINAPI ModuleFindHandle16( MODULEENTRY *lpme, HMODULE16 hModule )
1934 {
1935 hModule = GetExePtr( hModule );
1936 lpme->wNext = hModule;
1937 return ModuleNext16( lpme );
1938 }
1939
1940
1941 /***************************************************************************
1942 * IsRomModule (KERNEL.323)
1943 */
1944 BOOL16 WINAPI IsRomModule16( HMODULE16 unused )
1945 {
1946 return FALSE;
1947 }
1948
1949 /***************************************************************************
1950 * IsRomFile (KERNEL.326)
1951 */
1952 BOOL16 WINAPI IsRomFile16( HFILE16 unused )
1953 {
1954 return FALSE;
1955 }
1956
1957 /***********************************************************************
1958 * create_dummy_module
1959 *
1960 * Create a dummy NE module for Win32 or Winelib.
1961 */
1962 static HMODULE16 create_dummy_module( HMODULE module32 )
1963 {
1964 HMODULE16 hModule;
1965 NE_MODULE *pModule;
1966 SEGTABLEENTRY *pSegment;
1967 char *pStr,*s;
1968 unsigned int len;
1969 const char* basename;
1970 OFSTRUCT *ofs;
1971 int of_size, size;
1972 char filename[MAX_PATH];
1973 IMAGE_NT_HEADERS *nt = RtlImageNtHeader( module32 );
1974
1975 if (!nt) return ERROR_BAD_FORMAT;
1976
1977 /* Extract base filename */
1978 len = GetModuleFileNameA( module32, filename, sizeof(filename) );
1979 if (!len || len >= sizeof(filename)) return ERROR_BAD_FORMAT;
1980 basename = strrchr(filename, '\\');
1981 if (!basename) basename = filename;
1982 else basename++;
1983 len = strlen(basename);
1984 if ((s = strchr(basename, '.'))) len = s - basename;
1985
1986 /* Allocate module */
1987 of_size = sizeof(OFSTRUCT) - sizeof(ofs->szPathName)
1988 + strlen(filename) + 1;
1989 size = sizeof(NE_MODULE) +
1990 /* loaded file info */
1991 ((of_size + 3) & ~3) +
1992 /* segment table: DS,CS */
1993 2 * sizeof(SEGTABLEENTRY) +
1994 /* name table */
1995 len + 2 +
1996 /* several empty tables */
1997 8;
1998
1999 hModule = GlobalAlloc16( GMEM_MOVEABLE | GMEM_ZEROINIT, size );
2000 if (!hModule) return ERROR_BAD_FORMAT;
2001
2002 FarSetOwner16( hModule, hModule );
2003 pModule = (NE_MODULE *)GlobalLock16( hModule );
2004
2005 /* Set all used entries */
2006 pModule->ne_magic = IMAGE_OS2_SIGNATURE;
2007 pModule->count = 1;
2008 pModule->next = 0;
2009 pModule->ne_flags = NE_FFLAGS_WIN32;
2010 pModule->ne_autodata = 0;
2011 pModule->ne_sssp = MAKESEGPTR( 0, 1 );
2012 pModule->ne_csip = MAKESEGPTR( 0, 2 );
2013 pModule->ne_heap = 0;
2014 pModule->ne_stack = 0;
2015 pModule->ne_cseg = 2;
2016 pModule->ne_cmod = 0;
2017 pModule->ne_cbnrestab = 0;
2018 pModule->fileinfo = sizeof(NE_MODULE);
2019 pModule->ne_exetyp = NE_OSFLAGS_WINDOWS;
2020 pModule->self = hModule;
2021 pModule->module32 = module32;
2022
2023 /* Set version and flags */
2024 pModule->ne_expver = ((nt->OptionalHeader.MajorSubsystemVersion & 0xff) << 8 ) |
2025 (nt->OptionalHeader.MinorSubsystemVersion & 0xff);
2026 if (nt->FileHeader.Characteristics & IMAGE_FILE_DLL)
2027 pModule->ne_flags |= NE_FFLAGS_LIBMODULE | NE_FFLAGS_SINGLEDATA;
2028
2029 /* Set loaded file information */
2030 ofs = (OFSTRUCT *)(pModule + 1);
2031 memset( ofs, 0, of_size );
2032 ofs->cBytes = of_size < 256 ? of_size : 255; /* FIXME */
2033 strcpy( ofs->szPathName, filename );
2034
2035 pSegment = (SEGTABLEENTRY*)((char*)(pModule + 1) + ((of_size + 3) & ~3));
2036 pModule->ne_segtab = (char *)pSegment - (char *)pModule;
2037 /* Data segment */
2038 pSegment->size = 0;
2039 pSegment->flags = NE_SEGFLAGS_DATA;
2040 pSegment->minsize = 0x1000;
2041 pSegment++;
2042 /* Code segment */
2043 pSegment->flags = 0;
2044 pSegment++;
2045
2046 /* Module name */
2047 pStr = (char *)pSegment;
2048 pModule->ne_restab = pStr - (char *)pModule;
2049 assert(len<256);
2050 *pStr = len;
2051 lstrcpynA( pStr+1, basename, len+1 );
2052 pStr += len+2;
2053
2054 /* All tables zero terminated */
2055 pModule->ne_rsrctab = pModule->ne_imptab = pModule->ne_enttab = (char *)pStr - (char *)pModule;
2056
2057 NE_RegisterModule( pModule );
2058 pModule->owner32 = LoadLibraryA( filename ); /* increment the ref count of the 32-bit module */
2059 return hModule;
2060 }
2061
2062 /***********************************************************************
2063 * PrivateLoadLibrary (KERNEL32.@)
2064 *
2065 * FIXME: rough guesswork, don't know what "Private" means
2066 */
2067 HINSTANCE16 WINAPI PrivateLoadLibrary(LPCSTR libname)
2068 {
2069 return LoadLibrary16(libname);
2070 }
2071
2072 /***********************************************************************
2073 * PrivateFreeLibrary (KERNEL32.@)
2074 *
2075 * FIXME: rough guesswork, don't know what "Private" means
2076 */
2077 void WINAPI PrivateFreeLibrary(HINSTANCE16 handle)
2078 {
2079 FreeLibrary16(handle);
2080 }
2081
2082 /***********************************************************************
2083 * LoadLibrary32 (KERNEL.452)
2084 * LoadSystemLibrary32 (KERNEL.482)
2085 */
2086 HMODULE WINAPI LoadLibrary32_16( LPCSTR libname )
2087 {
2088 HMODULE hModule;
2089 DWORD count;
2090
2091 ReleaseThunkLock( &count );
2092 hModule = LoadLibraryA( libname );
2093 RestoreThunkLock( count );
2094 return hModule;
2095 }
2096
2097 /***************************************************************************
2098 * MapHModuleLS (KERNEL32.@)
2099 */
2100 HMODULE16 WINAPI MapHModuleLS(HMODULE hmod)
2101 {
2102 HMODULE16 ret;
2103 NE_MODULE *pModule;
2104
2105 if (!hmod)
2106 return TASK_GetCurrent()->hInstance;
2107 if (!HIWORD(hmod))
2108 return LOWORD(hmod); /* we already have a 16 bit module handle */
2109 pModule = (NE_MODULE*)GlobalLock16(hFirstModule);
2110 while (pModule) {
2111 if (pModule->module32 == hmod)
2112 return pModule->self;
2113 pModule = (NE_MODULE*)GlobalLock16(pModule->next);
2114 }
2115 if ((ret = create_dummy_module( hmod )) < 32)
2116 {
2117 SetLastError(ret);
2118 ret = 0;
2119 }
2120 return ret;
2121 }
2122
2123 /***************************************************************************
2124 * MapHModuleSL (KERNEL32.@)
2125 */
2126 HMODULE WINAPI MapHModuleSL(HMODULE16 hmod)
2127 {
2128 NE_MODULE *pModule;
2129
2130 if (!hmod) {
2131 TDB *pTask = TASK_GetCurrent();
2132 hmod = pTask->hModule;
2133 }
2134 pModule = (NE_MODULE*)GlobalLock16(hmod);
2135 if ((pModule->ne_magic != IMAGE_OS2_SIGNATURE) || !(pModule->ne_flags & NE_FFLAGS_WIN32))
2136 return 0;
2137 return pModule->module32;
2138 }
2139
2140 /***************************************************************************
2141 * MapHInstLS (KERNEL.472)
2142 */
2143 void WINAPI MapHInstLS16( CONTEXT86 *context )
2144 {
2145 context->Eax = MapHModuleLS( (HMODULE)context->Eax );
2146 }
2147
2148 /***************************************************************************
2149 * MapHInstSL (KERNEL.473)
2150 */
2151 void WINAPI MapHInstSL16( CONTEXT86 *context )
2152 {
2153 context->Eax = (DWORD)MapHModuleSL( context->Eax );
2154 }
2155
2156 #ifdef __i386__
2157
2158 /***************************************************************************
2159 * MapHInstLS (KERNEL32.@)
2160 */
2161 __ASM_GLOBAL_FUNC( MapHInstLS,
2162 "pushl %eax\n\t"
2163 "call " __ASM_NAME("MapHModuleLS") "\n\t"
2164 "ret" );
2165
2166 /***************************************************************************
2167 * MapHInstSL (KERNEL32.@)
2168 */
2169 __ASM_GLOBAL_FUNC( MapHInstSL,
2170 "pushl %eax\n\t"
2171 "call " __ASM_NAME("MapHModuleSL") "\n\t"
2172 "ret" );
2173
2174 /***************************************************************************
2175 * MapHInstLS_PN (KERNEL32.@)
2176 */
2177 __ASM_GLOBAL_FUNC( MapHInstLS_PN,
2178 "testl %eax,%eax\n\t"
2179 "jz 1f\n\t"
2180 "pushl %eax\n\t"
2181 "call " __ASM_NAME("MapHModuleLS") "\n"
2182 "1:\tret" );
2183
2184 /***************************************************************************
2185 * MapHInstSL_PN (KERNEL32.@)
2186 */
2187 __ASM_GLOBAL_FUNC( MapHInstSL_PN,
2188 "andl $0xffff,%eax\n\t"
2189 "jz 1f\n\t"
2190 "pushl %eax\n\t"
2191 "call " __ASM_NAME("MapHModuleSL") "\n"
2192 "1:\tret" );
2193
2194 #endif /* __i386__ */
useful hacks and other patches not (yet) suitable for mainline