?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
dbghelp: Parse the DWARF information in Mach-O modules.
[wine.git] / dlls / krnl386.exe16 / ne_module.c
blob70f8a464673ed5acb74bf1ea396ad2d981dad6fa
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 "kernel16_private.h"
40 #include "wine/exception.h"
41 #include "wine/debug.h"
42
43 WINE_DEFAULT_DEBUG_CHANNEL(module);
44 WINE_DECLARE_DEBUG_CHANNEL(loaddll);
45 WINE_DECLARE_DEBUG_CHANNEL(relay);
46 WINE_DECLARE_DEBUG_CHANNEL(winediag);
47
48 #include "pshpack1.h"
49 typedef struct _GPHANDLERDEF
50 {
51 WORD selector;
52 WORD rangeStart;
53 WORD rangeEnd;
54 WORD handler;
55 } GPHANDLERDEF;
56 #include "poppack.h"
57
58 /*
59 * Segment table entry
60 */
61 struct ne_segment_table_entry_s
62 {
63 WORD seg_data_offset; /* Sector offset of segment data */
64 WORD seg_data_length; /* Length of segment data */
65 WORD seg_flags; /* Flags associated with this segment */
66 WORD min_alloc; /* Minimum allocation size for this */
67 };
68
69 #define hFirstModule (pThhook->hExeHead)
70
71 static HINSTANCE16 NE_LoadModule( LPCSTR name, BOOL lib_only );
72 static BOOL16 NE_FreeModule( HMODULE16 hModule, BOOL call_wep );
73
74 static HINSTANCE16 MODULE_LoadModule16( LPCSTR libname, BOOL implicit, BOOL lib_only );
75
76 static HMODULE16 NE_GetModuleByFilename( LPCSTR name );
77
78
79 /* patch all the flat cs references of the code segment if necessary */
80 static inline void patch_code_segment( NE_MODULE *pModule )
81 {
82 int i;
83 CALLFROM16 *call;
84 SEGTABLEENTRY *pSeg = NE_SEG_TABLE( pModule );
85
86 for (i = 0; i < pModule->ne_cseg; i++, pSeg++)
87 if (!(pSeg->flags & NE_SEGFLAGS_DATA)) break; /* found the code segment */
88
89 call = GlobalLock16( pSeg->hSeg );
90
91 /* patch glue code address and code selector */
92 for (i = 0; call[i].pushl == 0x68; i++)
93 {
94 if (call[i].ret[0] == 0xca66 || call[i].ret[0] == 0xcb66) /* register entry point? */
95 call[i].glue = __wine_call_from_16_regs;
96 else
97 call[i].glue = __wine_call_from_16;
98 call[i].flatcs = wine_get_cs();
99 }
100
101 if (TRACE_ON(relay)) /* patch relay functions to all point to relay_call_from_16 */
102 for (i = 0; call[i].pushl == 0x68; i++) call[i].relay = relay_call_from_16;
103 }
104
105
106 /***********************************************************************
107 * contains_path
108 */
109 static inline BOOL contains_path( LPCSTR name )
110 {
111 return ((*name && (name[1] == ':')) || strchr(name, '/') || strchr(name, '\\'));
112 }
113
114
115 /***********************************************************************
116 * NE_strcasecmp
117 *
118 * locale-independent case conversion for module lookups
119 */
120 static int NE_strcasecmp( const char *str1, const char *str2 )
121 {
122 int ret = 0;
123 for ( ; ; str1++, str2++)
124 if ((ret = RtlUpperChar(*str1) - RtlUpperChar(*str2)) || !*str1) break;
125 return ret;
126 }
127
128
129 /***********************************************************************
130 * NE_strncasecmp
131 *
132 * locale-independent case conversion for module lookups
133 */
134 static int NE_strncasecmp( const char *str1, const char *str2, int len )
135 {
136 int ret = 0;
137 for ( ; len > 0; len--, str1++, str2++)
138 if ((ret = RtlUpperChar(*str1) - RtlUpperChar(*str2)) || !*str1) break;
139 return ret;
140 }
141
142
143 /***********************************************************************
144 * NE_GetPtr
145 */
146 NE_MODULE *NE_GetPtr( HMODULE16 hModule )
147 {
148 return GlobalLock16( GetExePtr(hModule) );
149 }
150
151
152 /**********************************************************************
153 * NE_RegisterModule
154 */
155 static void NE_RegisterModule( NE_MODULE *pModule )
156 {
157 pModule->next = hFirstModule;
158 hFirstModule = pModule->self;
159 }
160
161
162 /***********************************************************************
163 * NE_DumpModule
164 */
165 void NE_DumpModule( HMODULE16 hModule )
166 {
167 int i, ordinal;
168 SEGTABLEENTRY *pSeg;
169 BYTE *pstr;
170 WORD *pword;
171 NE_MODULE *pModule;
172 ET_BUNDLE *bundle;
173 ET_ENTRY *entry;
174
175 if (!(pModule = NE_GetPtr( hModule )))
176 {
177 ERR( "**** %04x is not a module handle\n", hModule );
178 return;
179 }
180
181 /* Dump the module info */
182 TRACE( "---\n" );
183 TRACE( "Module %04x:\n", hModule );
184 TRACE( "count=%d flags=%04x heap=%d stack=%d\n",
185 pModule->count, pModule->ne_flags,
186 pModule->ne_heap, pModule->ne_stack );
187 TRACE( "cs:ip=%04x:%04x ss:sp=%04x:%04x ds=%04x nb seg=%d modrefs=%d\n",
188 SELECTOROF(pModule->ne_csip), OFFSETOF(pModule->ne_csip),
189 SELECTOROF(pModule->ne_sssp), OFFSETOF(pModule->ne_sssp),
190 pModule->ne_autodata, pModule->ne_cseg, pModule->ne_cmod );
191 TRACE( "os_flags=%d swap_area=%d version=%04x\n",
192 pModule->ne_exetyp, pModule->ne_swaparea, pModule->ne_expver );
193 if (pModule->ne_flags & NE_FFLAGS_WIN32)
194 TRACE( "PE module=%p\n", pModule->module32 );
195
196 /* Dump the file info */
197 TRACE( "---\n" );
198 TRACE( "Filename: '%s'\n", NE_MODULE_NAME(pModule) );
199
200 /* Dump the segment table */
201 TRACE( "---\n" );
202 TRACE( "Segment table:\n" );
203 pSeg = NE_SEG_TABLE( pModule );
204 for (i = 0; i < pModule->ne_cseg; i++, pSeg++)
205 TRACE( "%02x: pos=%d size=%d flags=%04x minsize=%d hSeg=%04x\n",
206 i + 1, pSeg->filepos, pSeg->size, pSeg->flags,
207 pSeg->minsize, pSeg->hSeg );
208
209 /* Dump the resource table */
210 TRACE( "---\n" );
211 TRACE( "Resource table:\n" );
212 if (pModule->ne_rsrctab)
213 {
214 pword = (WORD *)((BYTE *)pModule + pModule->ne_rsrctab);
215 TRACE( "Alignment: %d\n", *pword++ );
216 while (*pword)
217 {
218 NE_TYPEINFO *ptr = (NE_TYPEINFO *)pword;
219 NE_NAMEINFO *pname = (NE_NAMEINFO *)(ptr + 1);
220 TRACE( "id=%04x count=%d\n", ptr->type_id, ptr->count );
221 for (i = 0; i < ptr->count; i++, pname++)
222 TRACE( "offset=%d len=%d id=%04x\n",
223 pname->offset, pname->length, pname->id );
224 pword = (WORD *)pname;
225 }
226 }
227 else TRACE( "None\n" );
228
229 /* Dump the resident name table */
230 TRACE( "---\n" );
231 TRACE( "Resident-name table:\n" );
232 pstr = (BYTE*) pModule + pModule->ne_restab;
233 while (*pstr)
234 {
235 TRACE( "%*.*s: %d\n", *pstr, *pstr, pstr + 1,
236 *(WORD *)(pstr + *pstr + 1) );
237 pstr += *pstr + 1 + sizeof(WORD);
238 }
239
240 /* Dump the module reference table */
241 TRACE( "---\n" );
242 TRACE( "Module ref table:\n" );
243 if (pModule->ne_modtab)
244 {
245 pword = (WORD *)((BYTE *)pModule + pModule->ne_modtab);
246 for (i = 0; i < pModule->ne_cmod; i++, pword++)
247 {
248 char name[10];
249 GetModuleName16( *pword, name, sizeof(name) );
250 TRACE( "%d: %04x -> '%s'\n", i, *pword, name );
251 }
252 }
253 else TRACE( "None\n" );
254
255 /* Dump the entry table */
256 TRACE( "---\n" );
257 TRACE( "Entry table:\n" );
258 bundle = (ET_BUNDLE *)((BYTE *)pModule+pModule->ne_enttab);
259 do {
260 entry = (ET_ENTRY *)((BYTE *)bundle+6);
261 TRACE( "Bundle %d-%d: %02x\n", bundle->first, bundle->last, entry->type);
262 ordinal = bundle->first;
263 while (ordinal < bundle->last)
264 {
265 if (entry->type == 0xff)
266 TRACE("%d: %02x:%04x (moveable)\n", ordinal++, entry->segnum, entry->offs);
267 else
268 TRACE("%d: %02x:%04x (fixed)\n", ordinal++, entry->segnum, entry->offs);
269 entry++;
270 }
271 } while ( (bundle->next) && (bundle = ((ET_BUNDLE *)((BYTE *)pModule + bundle->next))) );
272
273 /* Dump the non-resident names table */
274 TRACE( "---\n" );
275 TRACE( "Non-resident names table:\n" );
276 if (pModule->nrname_handle)
277 {
278 pstr = GlobalLock16( pModule->nrname_handle );
279 while (*pstr)
280 {
281 TRACE( "%*.*s: %d\n", *pstr, *pstr, pstr + 1,
282 *(WORD *)(pstr + *pstr + 1) );
283 pstr += *pstr + 1 + sizeof(WORD);
284 }
285 }
286 TRACE( "\n" );
287 }
288
289
290 /***********************************************************************
291 * NE_WalkModules
292 *
293 * Walk the module list and print the modules.
294 */
295 void NE_WalkModules(void)
296 {
297 HMODULE16 hModule = hFirstModule;
298 MESSAGE( "Module Flags Name\n" );
299 while (hModule)
300 {
301 NE_MODULE *pModule = NE_GetPtr( hModule );
302 if (!pModule)
303 {
304 MESSAGE( "Bad module %04x in list\n", hModule );
305 return;
306 }
307 MESSAGE( " %04x %04x %.*s\n", hModule, pModule->ne_flags,
308 *((char *)pModule + pModule->ne_restab),
309 (char *)pModule + pModule->ne_restab + 1 );
310 hModule = pModule->next;
311 }
312 }
313
314
315 /***********************************************************************
316 * NE_InitResourceHandler
317 *
318 * Fill in 'resloader' fields in the resource table.
319 */
320 static void NE_InitResourceHandler( HMODULE16 hModule )
321 {
322 static FARPROC16 proc;
323
324 NE_TYPEINFO *pTypeInfo;
325 NE_MODULE *pModule;
326
327 if (!(pModule = NE_GetPtr( hModule )) || !pModule->ne_rsrctab) return;
328
329 TRACE("InitResourceHandler[%04x]\n", hModule );
330
331 if (!proc) proc = GetProcAddress16( GetModuleHandle16("KERNEL"), "DefResourceHandler" );
332
333 pTypeInfo = (NE_TYPEINFO *)((char *)pModule + pModule->ne_rsrctab + 2);
334 while(pTypeInfo->type_id)
335 {
336 memcpy_unaligned( &pTypeInfo->resloader, &proc, sizeof(FARPROC16) );
337 pTypeInfo = (NE_TYPEINFO *)((char*)(pTypeInfo + 1) + pTypeInfo->count * sizeof(NE_NAMEINFO));
338 }
339 }
340
341
342 /***********************************************************************
343 * NE_GetOrdinal
344 *
345 * Lookup the ordinal for a given name.
346 */
347 WORD NE_GetOrdinal( HMODULE16 hModule, const char *name )
348 {
349 char buffer[256], *p;
350 BYTE *cpnt;
351 BYTE len;
352 NE_MODULE *pModule;
353
354 if (!(pModule = NE_GetPtr( hModule ))) return 0;
355 if (pModule->ne_flags & NE_FFLAGS_WIN32) return 0;
356
357 TRACE("(%04x,'%s')\n", hModule, name );
358
359 /* First handle names of the form '#xxxx' */
360
361 if (name[0] == '#') return atoi( name + 1 );
362
363 /* Now copy and uppercase the string */
364
365 strcpy( buffer, name );
366 for (p = buffer; *p; p++) *p = RtlUpperChar(*p);
367 len = p - buffer;
368
369 /* First search the resident names */
370
371 cpnt = (BYTE *)pModule + pModule->ne_restab;
372
373 /* Skip the first entry (module name) */
374 cpnt += *cpnt + 1 + sizeof(WORD);
375 while (*cpnt)
376 {
377 if ((*cpnt == len) && !memcmp( cpnt+1, buffer, len ))
378 {
379 WORD ordinal;
380 memcpy( &ordinal, cpnt + *cpnt + 1, sizeof(ordinal) );
381 TRACE(" Found: ordinal=%d\n", ordinal );
382 return ordinal;
383 }
384 cpnt += *cpnt + 1 + sizeof(WORD);
385 }
386
387 /* Now search the non-resident names table */
388
389 if (!pModule->nrname_handle) return 0; /* No non-resident table */
390 cpnt = GlobalLock16( pModule->nrname_handle );
391
392 /* Skip the first entry (module description string) */
393 cpnt += *cpnt + 1 + sizeof(WORD);
394 while (*cpnt)
395 {
396 if ((*cpnt == len) && !memcmp( cpnt+1, buffer, len ))
397 {
398 WORD ordinal;
399 memcpy( &ordinal, cpnt + *cpnt + 1, sizeof(ordinal) );
400 TRACE(" Found: ordinal=%d\n", ordinal );
401 return ordinal;
402 }
403 cpnt += *cpnt + 1 + sizeof(WORD);
404 }
405 return 0;
406 }
407
408
409 /***********************************************************************
410 * NE_GetEntryPoint
411 */
412 FARPROC16 WINAPI NE_GetEntryPoint( HMODULE16 hModule, WORD ordinal )
413 {
414 return NE_GetEntryPointEx( hModule, ordinal, TRUE );
415 }
416
417 /***********************************************************************
418 * NE_GetEntryPointEx
419 */
420 FARPROC16 NE_GetEntryPointEx( HMODULE16 hModule, WORD ordinal, BOOL16 snoop )
421 {
422 NE_MODULE *pModule;
423 WORD sel, offset, i;
424
425 ET_ENTRY *entry;
426 ET_BUNDLE *bundle;
427
428 if (!(pModule = NE_GetPtr( hModule ))) return 0;
429 assert( !(pModule->ne_flags & NE_FFLAGS_WIN32) );
430
431 bundle = (ET_BUNDLE *)((BYTE *)pModule + pModule->ne_enttab);
432 while ((ordinal < bundle->first + 1) || (ordinal > bundle->last))
433 {
434 if (!(bundle->next))
435 return 0;
436 bundle = (ET_BUNDLE *)((BYTE *)pModule + bundle->next);
437 }
438
439 entry = (ET_ENTRY *)((BYTE *)bundle+6);
440 for (i=0; i < (ordinal - bundle->first - 1); i++)
441 entry++;
442
443 sel = entry->segnum;
444 memcpy( &offset, &entry->offs, sizeof(WORD) );
445
446 if (sel == 0xfe) sel = 0xffff; /* constant entry */
447 else sel = GlobalHandleToSel16(NE_SEG_TABLE(pModule)[sel-1].hSeg);
448 if (sel==0xffff)
449 return (FARPROC16)MAKESEGPTR( sel, offset );
450 if (!snoop)
451 return (FARPROC16)MAKESEGPTR( sel, offset );
452 else
453 return SNOOP16_GetProcAddress16(hModule,ordinal,(FARPROC16)MAKESEGPTR( sel, offset ));
454 }
455
456
457 /***********************************************************************
458 * EntryAddrProc (KERNEL.667) Wine-specific export
459 *
460 * Return the entry point for a given ordinal.
461 */
462 FARPROC16 WINAPI EntryAddrProc16( HMODULE16 hModule, WORD ordinal )
463 {
464 FARPROC16 ret = NE_GetEntryPointEx( hModule, ordinal, TRUE );
465 CURRENT_STACK16->ecx = hModule; /* FIXME: might be incorrect value */
466 return ret;
467 }
468
469 /***********************************************************************
470 * NE_SetEntryPoint
471 *
472 * Change the value of an entry point. Use with caution!
473 * It can only change the offset value, not the selector.
474 */
475 BOOL16 NE_SetEntryPoint( HMODULE16 hModule, WORD ordinal, WORD offset )
476 {
477 NE_MODULE *pModule;
478 ET_ENTRY *entry;
479 ET_BUNDLE *bundle;
480 int i;
481
482 if (!(pModule = NE_GetPtr( hModule ))) return FALSE;
483 assert( !(pModule->ne_flags & NE_FFLAGS_WIN32) );
484
485 bundle = (ET_BUNDLE *)((BYTE *)pModule + pModule->ne_enttab);
486 while ((ordinal < bundle->first + 1) || (ordinal > bundle->last))
487 {
488 bundle = (ET_BUNDLE *)((BYTE *)pModule + bundle->next);
489 if (!bundle->next) return FALSE;
490 }
491
492 entry = (ET_ENTRY *)((BYTE *)bundle+6);
493 for (i=0; i < (ordinal - bundle->first - 1); i++)
494 entry++;
495
496 memcpy( &entry->offs, &offset, sizeof(WORD) );
497 return TRUE;
498 }
499
500
501 /***********************************************************************
502 * build_bundle_data
503 *
504 * Build the entry table bundle data from the on-disk format. Helper for build_module.
505 */
506 static void *build_bundle_data( NE_MODULE *pModule, void *dest, const BYTE *table )
507 {
508 ET_BUNDLE *oldbundle, *bundle = dest;
509 ET_ENTRY *entry;
510 BYTE nr_entries, type;
511
512 memset(bundle, 0, sizeof(ET_BUNDLE)); /* in case no entry table exists */
513 entry = (ET_ENTRY *)((BYTE *)bundle+6);
514
515 while ((nr_entries = *table++))
516 {
517 if ((type = *table++))
518 {
519 bundle->last += nr_entries;
520 if (type == 0xff)
521 {
522 while (nr_entries--)
523 {
524 entry->type = type;
525 entry->flags = *table++;
526 table += sizeof(WORD);
527 entry->segnum = *table++;
528 entry->offs = *(const WORD *)table;
529 table += sizeof(WORD);
530 entry++;
531 }
532 }
533 else
534 {
535 while (nr_entries--)
536 {
537 entry->type = type;
538 entry->flags = *table++;
539 entry->segnum = type;
540 entry->offs = *(const WORD *)table;
541 table += sizeof(WORD);
542 entry++;
543 }
544 }
545 }
546 else
547 {
548 if (bundle->first == bundle->last)
549 {
550 bundle->first += nr_entries;
551 bundle->last += nr_entries;
552 }
553 else
554 {
555 oldbundle = bundle;
556 oldbundle->next = (char *)entry - (char *)pModule;
557 bundle = (ET_BUNDLE *)entry;
558 bundle->first = bundle->last = oldbundle->last + nr_entries;
559 bundle->next = 0;
560 entry = (ET_ENTRY*)(((BYTE*)entry)+sizeof(ET_BUNDLE));
561 }
562 }
563 }
564 return entry;
565 }
566
567
568 /***********************************************************************
569 * build_module
570 *
571 * Build the in-memory module from the on-disk data.
572 */
573 static HMODULE16 build_module( const void *mapping, SIZE_T mapping_size, LPCSTR path )
574 {
575 const IMAGE_DOS_HEADER *mz_header = mapping;
576 const IMAGE_OS2_HEADER *ne_header;
577 const struct ne_segment_table_entry_s *pSeg;
578 const void *ptr;
579 int i;
580 size_t size;
581 HMODULE16 hModule;
582 NE_MODULE *pModule;
583 BYTE *buffer, *pData, *end;
584 OFSTRUCT *ofs;
585
586 if (mapping_size < sizeof(*mz_header)) return ERROR_BAD_FORMAT;
587 if (mz_header->e_magic != IMAGE_DOS_SIGNATURE) return ERROR_BAD_FORMAT;
588 ne_header = (const IMAGE_OS2_HEADER *)((const char *)mapping + mz_header->e_lfanew);
589 if (mz_header->e_lfanew + sizeof(*ne_header) > mapping_size) return ERROR_BAD_FORMAT;
590 if (ne_header->ne_magic == IMAGE_NT_SIGNATURE) return 21; /* win32 exe */
591 if (ne_header->ne_magic == IMAGE_OS2_SIGNATURE_LX)
592 {
593 MESSAGE("Sorry, %s is an OS/2 linear executable (LX) file!\n", path);
594 return 12;
595 }
596 if (ne_header->ne_magic != IMAGE_OS2_SIGNATURE) return ERROR_BAD_FORMAT;
597
598 /* We now have a valid NE header */
599
600 /* check to be able to fall back to loading OS/2 programs as DOS
601 * FIXME: should this check be reversed in order to be less strict?
602 * (only fail for OS/2 ne_exetyp 0x01 here?) */
603 if ((ne_header->ne_exetyp != 0x02 /* Windows */)
604 && (ne_header->ne_exetyp != 0x04) /* Windows 386 */)
605 return ERROR_BAD_FORMAT;
606
607 size = sizeof(NE_MODULE) +
608 /* segment table */
609 ne_header->ne_cseg * sizeof(SEGTABLEENTRY) +
610 /* resource table */
611 ne_header->ne_restab - ne_header->ne_rsrctab +
612 /* resident names table */
613 ne_header->ne_modtab - ne_header->ne_restab +
614 /* module ref table */
615 ne_header->ne_cmod * sizeof(WORD) +
616 /* imported names table */
617 ne_header->ne_enttab - ne_header->ne_imptab +
618 /* entry table length */
619 ne_header->ne_cbenttab +
620 /* entry table extra conversion space */
621 sizeof(ET_BUNDLE) +
622 2 * (ne_header->ne_cbenttab - ne_header->ne_cmovent*6) +
623 /* loaded file info */
624 sizeof(OFSTRUCT) - sizeof(ofs->szPathName) + strlen(path) + 1;
625
626 hModule = GlobalAlloc16( GMEM_FIXED | GMEM_ZEROINIT, size );
627 if (!hModule)
628 {
629 ERR_(winediag)( "Failed to create module for %s, 16-bit LDT support may be missing.\n",
630 debugstr_a(path) );
631 return ERROR_BAD_FORMAT;
632 }
633
634 FarSetOwner16( hModule, hModule );
635 pModule = GlobalLock16( hModule );
636 memcpy( pModule, ne_header, sizeof(*ne_header) );
637 pModule->count = 0;
638 /* check programs for default minimal stack size */
639 if (!(pModule->ne_flags & NE_FFLAGS_LIBMODULE) && (pModule->ne_stack < 0x1400))
640 pModule->ne_stack = 0x1400;
641
642 pModule->self = hModule;
643 pModule->mapping = mapping;
644 pModule->mapping_size = mapping_size;
645
646 pData = (BYTE *)(pModule + 1);
647
648 /* Clear internal Wine flags in case they are set in the EXE file */
649
650 pModule->ne_flags &= ~(NE_FFLAGS_BUILTIN | NE_FFLAGS_WIN32);
651
652 /* Get the segment table */
653
654 pModule->ne_segtab = pData - (BYTE *)pModule;
655 if (!(pSeg = NE_GET_DATA( pModule, mz_header->e_lfanew + ne_header->ne_segtab,
656 ne_header->ne_cseg * sizeof(struct ne_segment_table_entry_s) )))
657 goto failed;
658 for (i = ne_header->ne_cseg; i > 0; i--, pSeg++)
659 {
660 memcpy( pData, pSeg, sizeof(*pSeg) );
661 pData += sizeof(SEGTABLEENTRY);
662 }
663
664 /* Get the resource table */
665
666 if (ne_header->ne_rsrctab < ne_header->ne_restab)
667 {
668 pModule->ne_rsrctab = pData - (BYTE *)pModule;
669 if (!NE_READ_DATA( pModule, pData, mz_header->e_lfanew + ne_header->ne_rsrctab,
670 ne_header->ne_restab - ne_header->ne_rsrctab )) goto failed;
671 pData += ne_header->ne_restab - ne_header->ne_rsrctab;
672 }
673 else pModule->ne_rsrctab = 0; /* No resource table */
674
675 /* Get the resident names table */
676
677 pModule->ne_restab = pData - (BYTE *)pModule;
678 if (!NE_READ_DATA( pModule, pData, mz_header->e_lfanew + ne_header->ne_restab,
679 ne_header->ne_modtab - ne_header->ne_restab )) goto failed;
680 pData += ne_header->ne_modtab - ne_header->ne_restab;
681
682 /* Get the module references table */
683
684 if (ne_header->ne_cmod > 0)
685 {
686 pModule->ne_modtab = pData - (BYTE *)pModule;
687 if (!NE_READ_DATA( pModule, pData, mz_header->e_lfanew + ne_header->ne_modtab,
688 ne_header->ne_cmod * sizeof(WORD) )) goto failed;
689 pData += ne_header->ne_cmod * sizeof(WORD);
690 }
691 else pModule->ne_modtab = 0; /* No module references */
692
693 /* Get the imported names table */
694
695 pModule->ne_imptab = pData - (BYTE *)pModule;
696 if (!NE_READ_DATA( pModule, pData, mz_header->e_lfanew + ne_header->ne_imptab,
697 ne_header->ne_enttab - ne_header->ne_imptab )) goto failed;
698 pData += ne_header->ne_enttab - ne_header->ne_imptab;
699
700 /* Load entry table, convert it to the optimized version used by Windows */
701
702 pModule->ne_enttab = pData - (BYTE *)pModule;
703 if (!(ptr = NE_GET_DATA( pModule, mz_header->e_lfanew + ne_header->ne_enttab,
704 ne_header->ne_cbenttab ))) goto failed;
705 end = build_bundle_data( pModule, pData, ptr );
706
707 pData += ne_header->ne_cbenttab + sizeof(ET_BUNDLE) +
708 2 * (ne_header->ne_cbenttab - ne_header->ne_cmovent*6);
709
710 if (end > pData)
711 {
712 FIXME( "not enough space for entry table for %s\n", debugstr_a(path) );
713 goto failed;
714 }
715
716 /* Store the filename information */
717
718 pModule->fileinfo = pData - (BYTE *)pModule;
719 ofs = (OFSTRUCT *)pData;
720 ofs->cBytes = sizeof(OFSTRUCT) - sizeof(ofs->szPathName) + strlen(path);
721 ofs->fFixedDisk = 1;
722 strcpy( ofs->szPathName, path );
723 pData += ofs->cBytes + 1;
724 assert( (BYTE *)pModule + size <= pData );
725
726 /* Get the non-resident names table */
727
728 if (ne_header->ne_cbnrestab)
729 {
730 pModule->nrname_handle = GlobalAlloc16( 0, ne_header->ne_cbnrestab );
731 if (!pModule->nrname_handle) goto failed;
732 FarSetOwner16( pModule->nrname_handle, hModule );
733 buffer = GlobalLock16( pModule->nrname_handle );
734 if (!NE_READ_DATA( pModule, buffer, ne_header->ne_nrestab, ne_header->ne_cbnrestab ))
735 {
736 GlobalFree16( pModule->nrname_handle );
737 pModule->nrname_handle = 0;
738 }
739 }
740 else pModule->nrname_handle = 0;
741
742 /* Allocate a segment for the implicitly-loaded DLLs */
743
744 if (pModule->ne_cmod)
745 {
746 pModule->dlls_to_init = GlobalAlloc16( GMEM_ZEROINIT,
747 (pModule->ne_cmod+1)*sizeof(HMODULE16) );
748 if (!pModule->dlls_to_init)
749 {
750 if (pModule->nrname_handle) GlobalFree16( pModule->nrname_handle );
751 goto failed;
752 }
753 FarSetOwner16( pModule->dlls_to_init, hModule );
754 }
755 else pModule->dlls_to_init = 0;
756
757 NE_RegisterModule( pModule );
758 return hModule;
759
760 failed:
761 GlobalFree16( hModule );
762 return ERROR_BAD_FORMAT;
763 }
764
765
766 /***********************************************************************
767 * NE_LoadDLLs
768 *
769 * Load all DLLs implicitly linked to a module.
770 */
771 static BOOL NE_LoadDLLs( NE_MODULE *pModule )
772 {
773 int i;
774 WORD *pModRef = (WORD *)((char *)pModule + pModule->ne_modtab);
775 WORD *pDLLs = GlobalLock16( pModule->dlls_to_init );
776
777 for (i = 0; i < pModule->ne_cmod; i++, pModRef++)
778 {
779 char buffer[260], *p;
780 BYTE *pstr = (BYTE *)pModule + pModule->ne_imptab + *pModRef;
781 memcpy( buffer, pstr + 1, *pstr );
782 *(buffer + *pstr) = 0; /* terminate it */
783
784 TRACE("Loading '%s'\n", buffer );
785 if (!(*pModRef = GetModuleHandle16( buffer )))
786 {
787 /* If the DLL is not loaded yet, load it and store */
788 /* its handle in the list of DLLs to initialize. */
789 HMODULE16 hDLL;
790
791 /* Append .DLL to name if no extension present */
792 if (!(p = strrchr( buffer, '.')) || strchr( p, '/' ) || strchr( p, '\\'))
793 strcat( buffer, ".DLL" );
794
795 if ((hDLL = MODULE_LoadModule16( buffer, TRUE, TRUE )) < 32)
796 {
797 /* FIXME: cleanup what was done */
798
799 MESSAGE( "Could not load '%s' required by '%.*s', error=%d\n",
800 buffer, *((BYTE*)pModule + pModule->ne_restab),
801 (char *)pModule + pModule->ne_restab + 1, hDLL );
802 return FALSE;
803 }
804 *pModRef = GetExePtr( hDLL );
805 *pDLLs++ = *pModRef;
806 }
807 else /* Increment the reference count of the DLL */
808 {
809 NE_MODULE *pOldDLL = NE_GetPtr( *pModRef );
810 if (pOldDLL) pOldDLL->count++;
811 }
812 }
813 return TRUE;
814 }
815
816
817 /**********************************************************************
818 * NE_DoLoadModule
819 *
820 * Load first instance of NE module from file.
821 *
822 * pModule must point to a module structure prepared by build_module.
823 * This routine must never be called twice on a module.
824 */
825 static HINSTANCE16 NE_DoLoadModule( NE_MODULE *pModule )
826 {
827 /* Allocate the segments for this module */
828
829 if (!NE_CreateAllSegments( pModule ))
830 return ERROR_NOT_ENOUGH_MEMORY; /* 8 */
831
832 /* Load the referenced DLLs */
833
834 if (!NE_LoadDLLs( pModule ))
835 return ERROR_FILE_NOT_FOUND; /* 2 */
836
837 /* Load the segments */
838
839 NE_LoadAllSegments( pModule );
840
841 /* Make sure the usage count is 1 on the first loading of */
842 /* the module, even if it contains circular DLL references */
843
844 pModule->count = 1;
845
846 return NE_GetInstance( pModule );
847 }
848
849 /**********************************************************************
850 * NE_LoadModule
851 *
852 * Load first instance of NE module. (Note: caller is responsible for
853 * ensuring the module isn't already loaded!)
854 *
855 * If the module turns out to be an executable module, only a
856 * handle to a module stub is returned; this needs to be initialized
857 * by calling NE_DoLoadModule later, in the context of the newly
858 * created process.
859 *
860 * If lib_only is TRUE, however, the module is perforce treated
861 * like a DLL module, even if it is an executable module.
862 *
863 */
864 static HINSTANCE16 NE_LoadModule( LPCSTR name, BOOL lib_only )
865 {
866 NE_MODULE *pModule;
867 HMODULE16 hModule;
868 HINSTANCE16 hInstance;
869 HFILE16 hFile;
870 OFSTRUCT ofs;
871 HANDLE mapping;
872 void *ptr;
873 MEMORY_BASIC_INFORMATION info;
874
875 /* Open file */
876 if ((hFile = OpenFile16( name, &ofs, OF_READ|OF_SHARE_DENY_WRITE )) == HFILE_ERROR16)
877 return ERROR_FILE_NOT_FOUND;
878
879 mapping = CreateFileMappingW( DosFileHandleToWin32Handle(hFile), NULL, PAGE_WRITECOPY, 0, 0, NULL );
880 _lclose16( hFile );
881 if (!mapping) return ERROR_BAD_FORMAT;
882
883 ptr = MapViewOfFile( mapping, FILE_MAP_COPY, 0, 0, 0 );
884 CloseHandle( mapping );
885 if (!ptr) return ERROR_BAD_FORMAT;
886
887 VirtualQuery( ptr, &info, sizeof(info) );
888 hModule = build_module( ptr, info.RegionSize, ofs.szPathName );
889
890 if (hModule < 32)
891 {
892 UnmapViewOfFile( ptr );
893 return hModule;
894 }
895
896 SNOOP16_RegisterDLL( hModule, ofs.szPathName );
897 NE_InitResourceHandler( hModule );
898
899 pModule = NE_GetPtr( hModule );
900
901 if ( !lib_only && !( pModule->ne_flags & NE_FFLAGS_LIBMODULE ) )
902 return hModule;
903
904 hInstance = NE_DoLoadModule( pModule );
905 if ( hInstance < 32 )
906 {
907 /* cleanup ... */
908 NE_FreeModule( hModule, 0 );
909 }
910
911 return hInstance;
912 }
913
914
915 /***********************************************************************
916 * NE_DoLoadBuiltinModule
917 *
918 * Load a built-in Win16 module. Helper function for NE_LoadBuiltinModule.
919 */
920 static HMODULE16 NE_DoLoadBuiltinModule( const IMAGE_DOS_HEADER *mz_header, const char *file_name,
921 HMODULE owner32 )
922 {
923 NE_MODULE *pModule;
924 HMODULE16 hModule;
925 HINSTANCE16 hInstance;
926 SIZE_T mapping_size = ~0UL; /* assume builtins don't contain invalid offsets... */
927
928 hModule = build_module( mz_header, mapping_size, file_name );
929 if (hModule < 32) return hModule;
930 pModule = GlobalLock16( hModule );
931 pModule->ne_flags |= NE_FFLAGS_BUILTIN;
932 pModule->owner32 = owner32;
933
934 /* fake the expected version the module should have according to the current Windows version */
935 pModule->ne_expver = MAKEWORD( NtCurrentTeb()->Peb->OSMajorVersion,
936 NtCurrentTeb()->Peb->OSMinorVersion );
937
938 hInstance = NE_DoLoadModule( pModule );
939 if (hInstance < 32) NE_FreeModule( hModule, 0 );
940
941 NE_InitResourceHandler( hModule );
942
943 if (pModule->ne_heap)
944 {
945 SEGTABLEENTRY *pSeg = NE_SEG_TABLE( pModule ) + pModule->ne_autodata - 1;
946 unsigned int size = pSeg->minsize + pModule->ne_heap;
947 if (size > 0xfffe) size = 0xfffe;
948 LocalInit16( GlobalHandleToSel16(pSeg->hSeg), pSeg->minsize, size );
949 }
950
951 patch_code_segment( pModule );
952
953 return hInstance;
954 }
955
956
957 /**********************************************************************
958 * MODULE_LoadModule16
959 *
960 * Load a NE module in the order of the loadorder specification.
961 * The caller is responsible that the module is not loaded already.
962 *
963 */
964 static HINSTANCE16 MODULE_LoadModule16( LPCSTR libname, BOOL implicit, BOOL lib_only )
965 {
966 HINSTANCE16 hinst = 2;
967 HMODULE16 hModule;
968 HMODULE mod32 = 0;
969 NE_MODULE *pModule;
970 const IMAGE_DOS_HEADER *descr = NULL;
971 const char *file_name = NULL;
972 char dllname[32];
973 const char *basename, *main_module, *p;
974
975 /* strip path information */
976
977 basename = libname;
978 if (basename[0] && basename[1] == ':') basename += 2; /* strip drive specification */
979 if ((p = strrchr( basename, '\\' ))) basename = p + 1;
980 if ((p = strrchr( basename, '/' ))) basename = p + 1;
981
982 if (strlen(basename) < sizeof(dllname)-6)
983 {
984 DWORD count;
985 char *q;
986
987 ReleaseThunkLock( &count );
988
989 strcpy( dllname, basename );
990 q = strrchr( dllname, '.' );
991 if (!q) strcat( dllname, ".dll" );
992 for (q = dllname; *q; q++) if (*q >= 'A' && *q <= 'Z') *q += 32;
993
994 strcpy( q, "16" );
995 if ((mod32 = LoadLibraryA( dllname )))
996 {
997 if (!(descr = (void *)GetProcAddress( mod32, "__wine_spec_dos_header" )))
998 {
999 WARN( "loaded %s but does not contain a 16-bit module\n", debugstr_a(dllname) );
1000 FreeLibrary( mod32 );
1001 }
1002 else
1003 {
1004 TRACE( "found %s with embedded 16-bit module\n", debugstr_a(dllname) );
1005 file_name = basename;
1006
1007 /* if module has a 32-bit owner, match the load order of the owner */
1008 if ((main_module = (void *)GetProcAddress( mod32, "__wine_spec_main_module" )))
1009 {
1010 LDR_MODULE *ldr;
1011 HMODULE main_owner = LoadLibraryA( main_module );
1012
1013 if (!main_owner)
1014 {
1015 WARN( "couldn't load owner %s for 16-bit dll %s\n", main_module, dllname );
1016 FreeLibrary( mod32 );
1017 RestoreThunkLock( count );
1018 return ERROR_FILE_NOT_FOUND;
1019 }
1020 /* check if module was loaded native */
1021 if (LdrFindEntryForAddress( main_owner, &ldr ) || !(ldr->Flags & LDR_WINE_INTERNAL))
1022 {
1023 FreeLibrary( mod32 );
1024 descr = NULL;
1025 }
1026 FreeLibrary( main_owner );
1027 }
1028 }
1029 }
1030 RestoreThunkLock( count );
1031
1032 /* loading the 32-bit library can have the side effect of loading the module */
1033 /* if so, simply incr the ref count and return the module */
1034 if (descr && (hModule = GetModuleHandle16( libname )))
1035 {
1036 TRACE( "module %s already loaded by owner\n", libname );
1037 pModule = NE_GetPtr( hModule );
1038 if (pModule) pModule->count++;
1039 FreeLibrary( mod32 );
1040 return hModule;
1041 }
1042 }
1043
1044 if (descr)
1045 {
1046 TRACE("Trying built-in '%s'\n", libname);
1047 hinst = NE_DoLoadBuiltinModule( descr, file_name, mod32 );
1048 if (hinst > 32) TRACE_(loaddll)("Loaded module %s : builtin\n", debugstr_a(file_name));
1049 else FreeLibrary( mod32 );
1050 }
1051 else
1052 {
1053 TRACE("Trying native dll '%s'\n", libname);
1054 hinst = NE_LoadModule(libname, lib_only);
1055 if (hinst > 32) TRACE_(loaddll)("Loaded module %s : native\n", debugstr_a(libname));
1056 }
1057
1058 if (hinst > 32 && !implicit)
1059 {
1060 hModule = GetModuleHandle16(libname);
1061 if(!hModule)
1062 {
1063 ERR("Serious trouble. Just loaded module '%s' (hinst=0x%04x), but can't get module handle. Filename too long ?\n",
1064 libname, hinst);
1065 return ERROR_INVALID_HANDLE;
1066 }
1067
1068 pModule = NE_GetPtr(hModule);
1069 if(!pModule)
1070 {
1071 ERR("Serious trouble. Just loaded module '%s' (hinst=0x%04x), but can't get NE_MODULE pointer\n",
1072 libname, hinst);
1073 return ERROR_INVALID_HANDLE;
1074 }
1075
1076 TRACE("Loaded module '%s' at 0x%04x.\n", libname, hinst);
1077
1078 /*
1079 * Call initialization routines for all loaded DLLs. Note that
1080 * when we load implicitly linked DLLs this will be done by InitTask().
1081 */
1082 if(pModule->ne_flags & NE_FFLAGS_LIBMODULE)
1083 {
1084 NE_InitializeDLLs(hModule);
1085 NE_DllProcessAttach(hModule);
1086 }
1087 else DOSMEM_InitDosMemory(); /* we will be running a 16-bit task, setup DOS memory */
1088 }
1089 return hinst; /* The last error that occurred */
1090 }
1091
1092
1093 /**********************************************************************
1094 * NE_CreateThread
1095 *
1096 * Create the thread for a 16-bit module.
1097 */
1098 static HINSTANCE16 NE_CreateThread( NE_MODULE *pModule, WORD cmdShow, LPCSTR cmdline )
1099 {
1100 HANDLE hThread;
1101 TDB *pTask;
1102 HTASK16 hTask;
1103 HINSTANCE16 instance = 0;
1104
1105 if (!(hTask = TASK_SpawnTask( pModule, cmdShow, cmdline + 1, *cmdline, &hThread )))
1106 return 0;
1107
1108 /* Post event to start the task */
1109 PostEvent16( hTask );
1110
1111 /* Wait until we get the instance handle */
1112 do
1113 {
1114 DirectedYield16( hTask );
1115 if (!IsTask16( hTask )) /* thread has died */
1116 {
1117 DWORD exit_code;
1118 WaitForSingleObject( hThread, INFINITE );
1119 GetExitCodeThread( hThread, &exit_code );
1120 CloseHandle( hThread );
1121 return exit_code;
1122 }
1123 if (!(pTask = GlobalLock16( hTask ))) break;
1124 instance = pTask->hInstance;
1125 GlobalUnlock16( hTask );
1126 } while (!instance);
1127
1128 CloseHandle( hThread );
1129 return instance;
1130 }
1131
1132
1133 /**********************************************************************
1134 * LoadModule (KERNEL.45)
1135 */
1136 HINSTANCE16 WINAPI LoadModule16( LPCSTR name, LPVOID paramBlock )
1137 {
1138 BOOL lib_only = !paramBlock || (paramBlock == (LPVOID)-1);
1139 LOADPARAMS16 *params;
1140 HMODULE16 hModule;
1141 NE_MODULE *pModule;
1142 LPSTR cmdline;
1143 WORD cmdShow = 1; /* SW_SHOWNORMAL but we don't want to include winuser.h here */
1144
1145 if (name == NULL) return 0;
1146
1147 TRACE("name %s, paramBlock %p\n", name, paramBlock);
1148
1149 /* Load module */
1150
1151 if ( (hModule = NE_GetModuleByFilename(name) ) != 0 )
1152 {
1153 /* Special case: second instance of an already loaded NE module */
1154
1155 if ( !( pModule = NE_GetPtr( hModule ) ) ) return ERROR_BAD_FORMAT;
1156 if ( pModule->module32 ) return (HINSTANCE16)21;
1157
1158 /* Increment refcount */
1159
1160 pModule->count++;
1161 }
1162 else
1163 {
1164 /* Main case: load first instance of NE module */
1165
1166 if ( (hModule = MODULE_LoadModule16( name, FALSE, lib_only )) < 32 )
1167 return hModule;
1168
1169 if ( !(pModule = NE_GetPtr( hModule )) )
1170 return ERROR_BAD_FORMAT;
1171 }
1172
1173 /* If library module, we just retrieve the instance handle */
1174
1175 if ( ( pModule->ne_flags & NE_FFLAGS_LIBMODULE ) || lib_only )
1176 return NE_GetInstance( pModule );
1177
1178 /*
1179 * At this point, we need to create a new process.
1180 *
1181 * pModule points either to an already loaded module, whose refcount
1182 * has already been incremented (to avoid having the module vanish
1183 * in the meantime), or else to a stub module which contains only header
1184 * information.
1185 */
1186 params = paramBlock;
1187 if (params->showCmd)
1188 cmdShow = ((WORD *)MapSL( params->showCmd ))[1];
1189 cmdline = MapSL( params->cmdLine );
1190 return NE_CreateThread( pModule, cmdShow, cmdline );
1191 }
1192
1193
1194 /**********************************************************************
1195 * NE_StartTask
1196 *
1197 * Startup code for a new 16-bit task.
1198 */
1199 DWORD NE_StartTask(void)
1200 {
1201 TDB *pTask = TASK_GetCurrent();
1202 NE_MODULE *pModule = NE_GetPtr( pTask->hModule );
1203 HINSTANCE16 hInstance, hPrevInstance;
1204 SEGTABLEENTRY *pSegTable = NE_SEG_TABLE( pModule );
1205 WORD sp;
1206
1207 if ( pModule->count > 0 )
1208 {
1209 /* Second instance of an already loaded NE module */
1210 /* Note that the refcount was already incremented by the parent */
1211
1212 hPrevInstance = NE_GetInstance( pModule );
1213
1214 if ( pModule->ne_autodata )
1215 if ( NE_CreateSegment( pModule, pModule->ne_autodata ) )
1216 NE_LoadSegment( pModule, pModule->ne_autodata );
1217
1218 hInstance = NE_GetInstance( pModule );
1219 TRACE("created second instance %04x[%d] of instance %04x.\n", hInstance, pModule->ne_autodata, hPrevInstance);
1220
1221 }
1222 else
1223 {
1224 /* Load first instance of NE module */
1225
1226 pModule->ne_flags |= NE_FFLAGS_GUI; /* FIXME: is this necessary? */
1227
1228 hInstance = NE_DoLoadModule( pModule );
1229 hPrevInstance = 0;
1230 }
1231
1232 if ( hInstance >= 32 )
1233 {
1234 CONTEXT context;
1235
1236 /* Enter instance handles into task struct */
1237
1238 pTask->hInstance = hInstance;
1239 pTask->hPrevInstance = hPrevInstance;
1240
1241 /* Use DGROUP for 16-bit stack */
1242
1243 if (!(sp = OFFSETOF(pModule->ne_sssp)))
1244 sp = pSegTable[SELECTOROF(pModule->ne_sssp)-1].minsize + pModule->ne_stack;
1245 sp &= ~1;
1246 sp -= sizeof(STACK16FRAME);
1247 NtCurrentTeb()->WOW32Reserved = (void *)MAKESEGPTR( GlobalHandleToSel16(hInstance), sp );
1248
1249 /* Registers at initialization must be:
1250 * ax zero
1251 * bx stack size in bytes
1252 * cx heap size in bytes
1253 * si previous app instance
1254 * di current app instance
1255 * bp zero
1256 * es selector to the PSP
1257 * ds dgroup of the application
1258 * ss stack selector
1259 * sp top of the stack
1260 */
1261 memset( &context, 0, sizeof(context) );
1262 context.SegCs = GlobalHandleToSel16(pSegTable[SELECTOROF(pModule->ne_csip) - 1].hSeg);
1263 context.SegDs = GlobalHandleToSel16(pTask->hInstance);
1264 context.SegEs = pTask->hPDB;
1265 context.SegFs = wine_get_fs();
1266 context.SegGs = wine_get_gs();
1267 context.Eip = OFFSETOF(pModule->ne_csip);
1268 context.Ebx = pModule->ne_stack;
1269 context.Ecx = pModule->ne_heap;
1270 context.Edi = pTask->hInstance;
1271 context.Esi = pTask->hPrevInstance;
1272
1273 /* Now call 16-bit entry point */
1274
1275 TRACE("Starting main program: cs:ip=%04x:%04x ds=%04x ss:sp=%04x:%04x\n",
1276 context.SegCs, context.Eip, context.SegDs,
1277 SELECTOROF(NtCurrentTeb()->WOW32Reserved),
1278 OFFSETOF(NtCurrentTeb()->WOW32Reserved) );
1279
1280 WOWCallback16Ex( 0, WCB16_REGS, 0, NULL, (DWORD *)&context );
1281 ExitThread( LOWORD(context.Eax) );
1282 }
1283 return hInstance; /* error code */
1284 }
1285
1286 /***********************************************************************
1287 * LoadLibrary (KERNEL.95)
1288 * LoadLibrary16 (KERNEL32.35)
1289 */
1290 HINSTANCE16 WINAPI LoadLibrary16( LPCSTR libname )
1291 {
1292 return LoadModule16(libname, (LPVOID)-1 );
1293 }
1294
1295
1296 /**********************************************************************
1297 * MODULE_CallWEP
1298 *
1299 * Call a DLL's WEP, allowing it to shut down.
1300 * FIXME: we always pass the WEP WEP_FREE_DLL, never WEP_SYSTEM_EXIT
1301 */
1302 static BOOL16 MODULE_CallWEP( HMODULE16 hModule )
1303 {
1304 BOOL16 ret;
1305 FARPROC16 WEP = GetProcAddress16( hModule, "WEP" );
1306 if (!WEP) return FALSE;
1307
1308 __TRY
1309 {
1310 WORD args[1];
1311 DWORD dwRet;
1312
1313 args[0] = WEP_FREE_DLL;
1314 WOWCallback16Ex( (DWORD)WEP, WCB16_PASCAL, sizeof(args), args, &dwRet );
1315 ret = LOWORD(dwRet);
1316 }
1317 __EXCEPT_PAGE_FAULT
1318 {
1319 WARN("Page fault\n");
1320 ret = 0;
1321 }
1322 __ENDTRY
1323
1324 return ret;
1325 }
1326
1327
1328 /**********************************************************************
1329 * NE_FreeModule
1330 *
1331 * Implementation of FreeModule16().
1332 */
1333 static BOOL16 NE_FreeModule( HMODULE16 hModule, BOOL call_wep )
1334 {
1335 HMODULE16 *hPrevModule;
1336 NE_MODULE *pModule;
1337 HMODULE16 *pModRef;
1338 int i;
1339
1340 if (!(pModule = NE_GetPtr( hModule ))) return FALSE;
1341 hModule = pModule->self;
1342
1343 TRACE("%04x count %d\n", hModule, pModule->count );
1344
1345 if (((INT16)(--pModule->count)) > 0 ) return TRUE;
1346 else pModule->count = 0;
1347
1348 if (call_wep && !(pModule->ne_flags & NE_FFLAGS_WIN32))
1349 {
1350 /* Free the objects owned by the DLL module */
1351 NE_CallUserSignalProc( hModule, USIG16_DLL_UNLOAD );
1352
1353 if (pModule->ne_flags & NE_FFLAGS_LIBMODULE)
1354 MODULE_CallWEP( hModule );
1355 else
1356 call_wep = FALSE; /* We are freeing a task -> no more WEPs */
1357 }
1358
1359 TRACE_(loaddll)("Unloaded module %s : %s\n", debugstr_a(NE_MODULE_NAME(pModule)),
1360 (pModule->ne_flags & NE_FFLAGS_BUILTIN) ? "builtin" : "native");
1361
1362 /* Clear magic number just in case */
1363
1364 pModule->ne_magic = pModule->self = 0;
1365 if (pModule->owner32) FreeLibrary( pModule->owner32 );
1366 else if (pModule->mapping) UnmapViewOfFile( pModule->mapping );
1367
1368 /* Remove it from the linked list */
1369
1370 hPrevModule = &hFirstModule;
1371 while (*hPrevModule && (*hPrevModule != hModule))
1372 {
1373 hPrevModule = &(NE_GetPtr( *hPrevModule ))->next;
1374 }
1375 if (*hPrevModule) *hPrevModule = pModule->next;
1376
1377 /* Free the referenced modules */
1378
1379 pModRef = (HMODULE16*)((char *)pModule + pModule->ne_modtab);
1380 for (i = 0; i < pModule->ne_cmod; i++, pModRef++)
1381 {
1382 NE_FreeModule( *pModRef, call_wep );
1383 }
1384
1385 /* Free the module storage */
1386
1387 GlobalFreeAll16( hModule );
1388 return TRUE;
1389 }
1390
1391
1392 /**********************************************************************
1393 * FreeModule (KERNEL.46)
1394 */
1395 BOOL16 WINAPI FreeModule16( HMODULE16 hModule )
1396 {
1397 return NE_FreeModule( hModule, TRUE );
1398 }
1399
1400
1401 /***********************************************************************
1402 * FreeLibrary (KERNEL.96)
1403 * FreeLibrary16 (KERNEL32.36)
1404 */
1405 void WINAPI FreeLibrary16( HINSTANCE16 handle )
1406 {
1407 TRACE("%04x\n", handle );
1408 FreeModule16( handle );
1409 }
1410
1411
1412 /***********************************************************************
1413 * GetModuleHandle16 (KERNEL32.@)
1414 */
1415 HMODULE16 WINAPI GetModuleHandle16( LPCSTR name )
1416 {
1417 HMODULE16 hModule;
1418 LPSTR s;
1419 BYTE len, *name_table;
1420 char tmpstr[MAX_PATH];
1421 NE_MODULE *pModule;
1422
1423 TRACE("(%s)\n", name);
1424
1425 if (!HIWORD(name)) return GetExePtr(LOWORD(name));
1426
1427 len = strlen(name);
1428 if (!len) return 0;
1429
1430 lstrcpynA(tmpstr, name, sizeof(tmpstr));
1431
1432 /* If 'name' matches exactly the module name of a module:
1433 * Return its handle.
1434 */
1435 for (hModule = hFirstModule; hModule ; hModule = pModule->next)
1436 {
1437 pModule = NE_GetPtr( hModule );
1438 if (!pModule) break;
1439 if (pModule->ne_flags & NE_FFLAGS_WIN32) continue;
1440
1441 name_table = (BYTE *)pModule + pModule->ne_restab;
1442 if ((*name_table == len) && !strncmp(name, (char*) name_table+1, len))
1443 return hModule;
1444 }
1445
1446 /* If uppercased 'name' matches exactly the module name of a module:
1447 * Return its handle
1448 */
1449 for (s = tmpstr; *s; s++) *s = RtlUpperChar(*s);
1450
1451 for (hModule = hFirstModule; hModule ; hModule = pModule->next)
1452 {
1453 pModule = NE_GetPtr( hModule );
1454 if (!pModule) break;
1455 if (pModule->ne_flags & NE_FFLAGS_WIN32) continue;
1456
1457 name_table = (BYTE *)pModule + pModule->ne_restab;
1458 /* FIXME: the strncasecmp is WRONG. It should not be case insensitive,
1459 * but case sensitive! (Unfortunately Winword 6 and subdlls have
1460 * lowercased module names, but try to load uppercase DLLs, so this
1461 * 'i' compare is just a quickfix until the loader handles that
1462 * correctly. -MM 990705
1463 */
1464 if ((*name_table == len) && !NE_strncasecmp(tmpstr, (const char*)name_table+1, len))
1465 return hModule;
1466 }
1467
1468 /* If the base filename of 'name' matches the base filename of the module
1469 * filename of some module (case-insensitive compare):
1470 * Return its handle.
1471 */
1472
1473 /* basename: search backwards in passed name to \ / or : */
1474 s = tmpstr + strlen(tmpstr);
1475 while (s > tmpstr)
1476 {
1477 if (s[-1]=='/' || s[-1]=='\\' || s[-1]==':')
1478 break;
1479 s--;
1480 }
1481
1482 /* search this in loaded filename list */
1483 for (hModule = hFirstModule; hModule ; hModule = pModule->next)
1484 {
1485 char *loadedfn;
1486 OFSTRUCT *ofs;
1487
1488 pModule = NE_GetPtr( hModule );
1489 if (!pModule) break;
1490 if (!pModule->fileinfo) continue;
1491 if (pModule->ne_flags & NE_FFLAGS_WIN32) continue;
1492
1493 ofs = (OFSTRUCT*)((BYTE *)pModule + pModule->fileinfo);
1494 loadedfn = ((char*)ofs->szPathName) + strlen(ofs->szPathName);
1495 /* basename: search backwards in pathname to \ / or : */
1496 while (loadedfn > (char*)ofs->szPathName)
1497 {
1498 if (loadedfn[-1]=='/' || loadedfn[-1]=='\\' || loadedfn[-1]==':')
1499 break;
1500 loadedfn--;
1501 }
1502 /* case insensitive compare ... */
1503 if (!NE_strcasecmp(loadedfn, s))
1504 return hModule;
1505 }
1506 return 0;
1507 }
1508
1509
1510 /**********************************************************************
1511 * GetModuleName (KERNEL.27)
1512 */
1513 BOOL16 WINAPI GetModuleName16( HINSTANCE16 hinst, LPSTR buf, INT16 count )
1514 {
1515 NE_MODULE *pModule;
1516 BYTE *p;
1517
1518 if (!(pModule = NE_GetPtr( hinst ))) return FALSE;
1519 p = (BYTE *)pModule + pModule->ne_restab;
1520 if (count > *p) count = *p + 1;
1521 if (count > 0)
1522 {
1523 memcpy( buf, p + 1, count - 1 );
1524 buf[count-1] = '\0';
1525 }
1526 return TRUE;
1527 }
1528
1529
1530 /**********************************************************************
1531 * GetModuleFileName (KERNEL.49)
1532 *
1533 * See also: GetModuleFileNameA
1534 *
1535 * This function returns short paths when the modules version field is < 4.0).
1536 *
1537 * Even if invoked by second instance of a program,
1538 * it still returns path of first one.
1539 */
1540 INT16 WINAPI GetModuleFileName16( HINSTANCE16 hModule, LPSTR lpFileName,
1541 INT16 nSize )
1542 {
1543 NE_MODULE *pModule;
1544
1545 /* Win95 does not query hModule if set to 0 !
1546 * Is this wrong or maybe Win3.1 only ? */
1547 if (!hModule) hModule = GetCurrentTask();
1548
1549 if (!(pModule = NE_GetPtr( hModule ))) return 0;
1550 lstrcpynA( lpFileName, NE_MODULE_NAME(pModule), nSize );
1551 if (pModule->ne_expver < 0x400)
1552 GetShortPathNameA(NE_MODULE_NAME(pModule), lpFileName, nSize);
1553 TRACE("%04x -> '%s'\n", hModule, lpFileName );
1554 return strlen(lpFileName);
1555 }
1556
1557
1558 /**********************************************************************
1559 * GetModuleUsage (KERNEL.48)
1560 */
1561 INT16 WINAPI GetModuleUsage16( HINSTANCE16 hModule )
1562 {
1563 NE_MODULE *pModule = NE_GetPtr( hModule );
1564 return pModule ? pModule->count : 0;
1565 }
1566
1567
1568 /**********************************************************************
1569 * GetExpWinVer (KERNEL.167)
1570 */
1571 WORD WINAPI GetExpWinVer16( HMODULE16 hModule )
1572 {
1573 NE_MODULE *pModule = NE_GetPtr( hModule );
1574 if ( !pModule ) return 0;
1575 return pModule->ne_expver;
1576 }
1577
1578
1579 /***********************************************************************
1580 * WinExec (KERNEL.166)
1581 */
1582 HINSTANCE16 WINAPI WinExec16( LPCSTR lpCmdLine, UINT16 nCmdShow )
1583 {
1584 LPCSTR p, args = NULL;
1585 LPCSTR name_beg, name_end;
1586 LPSTR name, cmdline;
1587 int arglen;
1588 HINSTANCE16 ret;
1589 char buffer[MAX_PATH];
1590 LOADPARAMS16 params;
1591 WORD showCmd[2];
1592
1593 if (*lpCmdLine == '"') /* has to be only one and only at beginning ! */
1594 {
1595 name_beg = lpCmdLine+1;
1596 p = strchr ( lpCmdLine+1, '"' );
1597 if (p)
1598 {
1599 name_end = p;
1600 args = strchr ( p, ' ' );
1601 }
1602 else /* yes, even valid with trailing '"' missing */
1603 name_end = lpCmdLine+strlen(lpCmdLine);
1604 }
1605 else
1606 {
1607 name_beg = lpCmdLine;
1608 args = strchr( lpCmdLine, ' ' );
1609 name_end = args ? args : lpCmdLine+strlen(lpCmdLine);
1610 }
1611
1612 if ((name_beg == lpCmdLine) && (!args))
1613 { /* just use the original cmdline string as file name */
1614 name = (LPSTR)lpCmdLine;
1615 }
1616 else
1617 {
1618 if (!(name = HeapAlloc( GetProcessHeap(), 0, name_end - name_beg + 1 )))
1619 return ERROR_NOT_ENOUGH_MEMORY;
1620 memcpy( name, name_beg, name_end - name_beg );
1621 name[name_end - name_beg] = '\0';
1622 }
1623
1624 if (args)
1625 {
1626 args++;
1627 arglen = strlen(args);
1628 cmdline = HeapAlloc( GetProcessHeap(), 0, 2 + arglen );
1629 cmdline[0] = (BYTE)arglen;
1630 strcpy( cmdline + 1, args );
1631 }
1632 else
1633 {
1634 cmdline = HeapAlloc( GetProcessHeap(), 0, 2 );
1635 cmdline[0] = cmdline[1] = 0;
1636 }
1637
1638 TRACE("name: '%s', cmdline: '%.*s'\n", name, cmdline[0], &cmdline[1]);
1639
1640 showCmd[0] = 2;
1641 showCmd[1] = nCmdShow;
1642
1643 params.hEnvironment = 0;
1644 params.cmdLine = MapLS( cmdline );
1645 params.showCmd = MapLS( showCmd );
1646 params.reserved = 0;
1647
1648 if (SearchPathA( NULL, name, ".exe", sizeof(buffer), buffer, NULL ))
1649 {
1650 ret = LoadModule16( buffer, &params );
1651 }
1652 else if (!contains_path( name )) /* try 16-bit builtin */
1653 {
1654 lstrcpynA( buffer, name, sizeof(buffer) );
1655 if (strlen( buffer ) < sizeof(buffer) - 4 && !strchr( buffer, '.' )) strcat( buffer, ".exe" );
1656 ret = LoadModule16( buffer, &params );
1657 if (ret == ERROR_FILE_NOT_FOUND) ret = 21; /* it might be a 32-bit builtin too */
1658 }
1659 else ret = ERROR_FILE_NOT_FOUND;
1660
1661 UnMapLS( params.cmdLine );
1662 UnMapLS( params.showCmd );
1663
1664 HeapFree( GetProcessHeap(), 0, cmdline );
1665 if (name != lpCmdLine) HeapFree( GetProcessHeap(), 0, name );
1666
1667 if (ret == 21 || ret == ERROR_BAD_FORMAT) /* 32-bit module or unknown executable*/
1668 {
1669 LOADPARAMS16 params;
1670 WORD showCmd[2];
1671 showCmd[0] = 2;
1672 showCmd[1] = nCmdShow;
1673
1674 arglen = strlen( lpCmdLine );
1675 cmdline = HeapAlloc( GetProcessHeap(), 0, arglen + 1 );
1676 cmdline[0] = (BYTE)arglen;
1677 memcpy( cmdline + 1, lpCmdLine, arglen );
1678
1679 params.hEnvironment = 0;
1680 params.cmdLine = MapLS( cmdline );
1681 params.showCmd = MapLS( showCmd );
1682 params.reserved = 0;
1683
1684 ret = LoadModule16( "winoldap.mod", &params );
1685 UnMapLS( params.cmdLine );
1686 UnMapLS( params.showCmd );
1687 }
1688 return ret;
1689 }
1690
1691 /***********************************************************************
1692 * GetProcAddress (KERNEL.50)
1693 */
1694 FARPROC16 WINAPI GetProcAddress16( HMODULE16 hModule, LPCSTR name )
1695 {
1696 WORD ordinal;
1697 FARPROC16 ret;
1698
1699 if (!hModule) hModule = GetCurrentTask();
1700 hModule = GetExePtr( hModule );
1701
1702 if (HIWORD(name) != 0)
1703 {
1704 ordinal = NE_GetOrdinal( hModule, name );
1705 TRACE("%04x '%s'\n", hModule, name );
1706 }
1707 else
1708 {
1709 ordinal = LOWORD(name);
1710 TRACE("%04x %04x\n", hModule, ordinal );
1711 }
1712 if (!ordinal) return NULL;
1713
1714 ret = NE_GetEntryPoint( hModule, ordinal );
1715
1716 TRACE("returning %p\n", ret );
1717 return ret;
1718 }
1719
1720
1721 /***************************************************************************
1722 * HasGPHandler (KERNEL.338)
1723 */
1724 SEGPTR WINAPI HasGPHandler16( SEGPTR address )
1725 {
1726 HMODULE16 hModule;
1727 int gpOrdinal;
1728 SEGPTR gpPtr;
1729 GPHANDLERDEF *gpHandler;
1730
1731 if ( (hModule = FarGetOwner16( SELECTOROF(address) )) != 0
1732 && (gpOrdinal = NE_GetOrdinal( hModule, "__GP" )) != 0
1733 && (gpPtr = (SEGPTR)NE_GetEntryPointEx( hModule, gpOrdinal, FALSE )) != 0
1734 && !IsBadReadPtr16( gpPtr, sizeof(GPHANDLERDEF) )
1735 && (gpHandler = MapSL( gpPtr )) != NULL )
1736 {
1737 while (gpHandler->selector)
1738 {
1739 if ( SELECTOROF(address) == gpHandler->selector
1740 && OFFSETOF(address) >= gpHandler->rangeStart
1741 && OFFSETOF(address) < gpHandler->rangeEnd )
1742 return MAKESEGPTR( gpHandler->selector, gpHandler->handler );
1743 gpHandler++;
1744 }
1745 }
1746
1747 return 0;
1748 }
1749
1750
1751 /**********************************************************************
1752 * GetModuleHandle (KERNEL.47)
1753 *
1754 * Find a module from a module name.
1755 *
1756 * NOTE: The current implementation works the same way the Windows 95 one
1757 * does. Do not try to 'fix' it, fix the callers.
1758 * + It does not do ANY extension handling (except that strange .EXE bit)!
1759 * + It does not care about paths, just about basenames. (same as Windows)
1760 *
1761 * RETURNS
1762 * LOWORD:
1763 * the win16 module handle if found
1764 * 0 if not
1765 * HIWORD (undocumented, see "Undocumented Windows", chapter 5):
1766 * Always hFirstModule
1767 */
1768 DWORD WINAPI WIN16_GetModuleHandle( SEGPTR name )
1769 {
1770 if (HIWORD(name) == 0)
1771 return MAKELONG(GetExePtr( (HINSTANCE16)name), hFirstModule );
1772 return MAKELONG(GetModuleHandle16( MapSL(name)), hFirstModule );
1773 }
1774
1775 /**********************************************************************
1776 * NE_GetModuleByFilename
1777 */
1778 static HMODULE16 NE_GetModuleByFilename( LPCSTR name )
1779 {
1780 HMODULE16 hModule;
1781 LPSTR s, p;
1782 BYTE len, *name_table;
1783 char tmpstr[MAX_PATH];
1784 NE_MODULE *pModule;
1785
1786 lstrcpynA(tmpstr, name, sizeof(tmpstr));
1787
1788 /* If the base filename of 'name' matches the base filename of the module
1789 * filename of some module (case-insensitive compare):
1790 * Return its handle.
1791 */
1792
1793 /* basename: search backwards in passed name to \ / or : */
1794 s = tmpstr + strlen(tmpstr);
1795 while (s > tmpstr)
1796 {
1797 if (s[-1]=='/' || s[-1]=='\\' || s[-1]==':')
1798 break;
1799 s--;
1800 }
1801
1802 /* search this in loaded filename list */
1803 for (hModule = hFirstModule; hModule ; hModule = pModule->next)
1804 {
1805 char *loadedfn;
1806 OFSTRUCT *ofs;
1807
1808 pModule = NE_GetPtr( hModule );
1809 if (!pModule) break;
1810 if (!pModule->fileinfo) continue;
1811 if (pModule->ne_flags & NE_FFLAGS_WIN32) continue;
1812
1813 ofs = (OFSTRUCT*)((BYTE *)pModule + pModule->fileinfo);
1814 loadedfn = ((char*)ofs->szPathName) + strlen(ofs->szPathName);
1815 /* basename: search backwards in pathname to \ / or : */
1816 while (loadedfn > (char*)ofs->szPathName)
1817 {
1818 if (loadedfn[-1]=='/' || loadedfn[-1]=='\\' || loadedfn[-1]==':')
1819 break;
1820 loadedfn--;
1821 }
1822 /* case insensitive compare ... */
1823 if (!NE_strcasecmp(loadedfn, s))
1824 return hModule;
1825 }
1826 /* If basename (without ext) matches the module name of a module:
1827 * Return its handle.
1828 */
1829
1830 if ( (p = strrchr( s, '.' )) != NULL ) *p = '\0';
1831 len = strlen(s);
1832
1833 for (hModule = hFirstModule; hModule ; hModule = pModule->next)
1834 {
1835 pModule = NE_GetPtr( hModule );
1836 if (!pModule) break;
1837 if (pModule->ne_flags & NE_FFLAGS_WIN32) continue;
1838
1839 name_table = (BYTE *)pModule + pModule->ne_restab;
1840 if ((*name_table == len) && !NE_strncasecmp(s, (const char*)name_table+1, len))
1841 return hModule;
1842 }
1843
1844 return 0;
1845 }
1846
1847 /***********************************************************************
1848 * GetProcAddress16 (KERNEL32.37)
1849 * Get procaddress in 16bit module from win32... (kernel32 undoc. ordinal func)
1850 */
1851 FARPROC16 WINAPI WIN32_GetProcAddress16( HMODULE hModule, LPCSTR name )
1852 {
1853 if (!hModule) return 0;
1854 if (HIWORD(hModule))
1855 {
1856 WARN("hModule is Win32 handle (%p)\n", hModule );
1857 return 0;
1858 }
1859 return GetProcAddress16( LOWORD(hModule), name );
1860 }
1861
1862 /***************************************************************************
1863 * IsRomModule (KERNEL.323)
1864 */
1865 BOOL16 WINAPI IsRomModule16( HMODULE16 unused )
1866 {
1867 return FALSE;
1868 }
1869
1870 /***************************************************************************
1871 * IsRomFile (KERNEL.326)
1872 */
1873 BOOL16 WINAPI IsRomFile16( HFILE16 unused )
1874 {
1875 return FALSE;
1876 }
1877
1878 /***********************************************************************
1879 * create_dummy_module
1880 *
1881 * Create a dummy NE module for Win32 or Winelib.
1882 */
1883 static HMODULE16 create_dummy_module( HMODULE module32 )
1884 {
1885 HMODULE16 hModule;
1886 NE_MODULE *pModule;
1887 SEGTABLEENTRY *pSegment;
1888 char *pStr;
1889 unsigned int len;
1890 const char *basename, *s;
1891 OFSTRUCT *ofs;
1892 int of_size, size;
1893 char filename[MAX_PATH];
1894 IMAGE_NT_HEADERS *nt = RtlImageNtHeader( module32 );
1895
1896 if (!nt) return ERROR_BAD_FORMAT;
1897
1898 /* Extract base filename */
1899 len = GetModuleFileNameA( module32, filename, sizeof(filename) );
1900 if (!len || len >= sizeof(filename)) return ERROR_BAD_FORMAT;
1901 basename = strrchr(filename, '\\');
1902 if (!basename) basename = filename;
1903 else basename++;
1904 len = strlen(basename);
1905 if ((s = strchr(basename, '.'))) len = s - basename;
1906
1907 /* Allocate module */
1908 of_size = sizeof(OFSTRUCT) - sizeof(ofs->szPathName)
1909 + strlen(filename) + 1;
1910 size = sizeof(NE_MODULE) +
1911 /* loaded file info */
1912 ((of_size + 3) & ~3) +
1913 /* segment table: DS,CS */
1914 2 * sizeof(SEGTABLEENTRY) +
1915 /* name table */
1916 len + 2 +
1917 /* several empty tables */
1918 8;
1919
1920 hModule = GlobalAlloc16( GMEM_MOVEABLE | GMEM_ZEROINIT, size );
1921 if (!hModule) return ERROR_BAD_FORMAT;
1922
1923 FarSetOwner16( hModule, hModule );
1924 pModule = GlobalLock16( hModule );
1925
1926 /* Set all used entries */
1927 pModule->ne_magic = IMAGE_OS2_SIGNATURE;
1928 pModule->count = 1;
1929 pModule->next = 0;
1930 pModule->ne_flags = NE_FFLAGS_WIN32;
1931 pModule->ne_autodata = 0;
1932 pModule->ne_sssp = MAKESEGPTR( 0, 1 );
1933 pModule->ne_csip = MAKESEGPTR( 0, 2 );
1934 pModule->ne_heap = 0;
1935 pModule->ne_stack = 0;
1936 pModule->ne_cseg = 2;
1937 pModule->ne_cmod = 0;
1938 pModule->ne_cbnrestab = 0;
1939 pModule->fileinfo = sizeof(NE_MODULE);
1940 pModule->ne_exetyp = NE_OSFLAGS_WINDOWS;
1941 pModule->self = hModule;
1942 pModule->module32 = module32;
1943
1944 /* Set version and flags */
1945 pModule->ne_expver = ((nt->OptionalHeader.MajorSubsystemVersion & 0xff) << 8 ) |
1946 (nt->OptionalHeader.MinorSubsystemVersion & 0xff);
1947 if (nt->FileHeader.Characteristics & IMAGE_FILE_DLL)
1948 pModule->ne_flags |= NE_FFLAGS_LIBMODULE | NE_FFLAGS_SINGLEDATA;
1949
1950 /* Set loaded file information */
1951 ofs = (OFSTRUCT *)(pModule + 1);
1952 memset( ofs, 0, of_size );
1953 ofs->cBytes = of_size < 256 ? of_size : 255; /* FIXME */
1954 strcpy( ofs->szPathName, filename );
1955
1956 pSegment = (SEGTABLEENTRY*)((char*)(pModule + 1) + ((of_size + 3) & ~3));
1957 pModule->ne_segtab = (char *)pSegment - (char *)pModule;
1958 /* Data segment */
1959 pSegment->size = 0;
1960 pSegment->flags = NE_SEGFLAGS_DATA;
1961 pSegment->minsize = 0x1000;
1962 pSegment++;
1963 /* Code segment */
1964 pSegment->flags = 0;
1965 pSegment++;
1966
1967 /* Module name */
1968 pStr = (char *)pSegment;
1969 pModule->ne_restab = pStr - (char *)pModule;
1970 assert(len<256);
1971 *pStr = len;
1972 lstrcpynA( pStr+1, basename, len+1 );
1973 pStr += len+2;
1974
1975 /* All tables zero terminated */
1976 pModule->ne_rsrctab = pModule->ne_imptab = pModule->ne_enttab = pStr - (char *)pModule;
1977
1978 NE_RegisterModule( pModule );
1979 pModule->owner32 = LoadLibraryA( filename ); /* increment the ref count of the 32-bit module */
1980 return hModule;
1981 }
1982
1983 /***********************************************************************
1984 * PrivateLoadLibrary (KERNEL32.@)
1985 *
1986 * FIXME: rough guesswork, don't know what "Private" means
1987 */
1988 HINSTANCE16 WINAPI PrivateLoadLibrary(LPCSTR libname)
1989 {
1990 return LoadLibrary16(libname);
1991 }
1992
1993 /***********************************************************************
1994 * PrivateFreeLibrary (KERNEL32.@)
1995 *
1996 * FIXME: rough guesswork, don't know what "Private" means
1997 */
1998 void WINAPI PrivateFreeLibrary(HINSTANCE16 handle)
1999 {
2000 FreeLibrary16(handle);
2001 }
2002
2003 /***********************************************************************
2004 * LoadLibrary32 (KERNEL.452)
2005 * LoadSystemLibrary32 (KERNEL.482)
2006 */
2007 HMODULE WINAPI LoadLibrary32_16( LPCSTR libname )
2008 {
2009 HMODULE hModule;
2010 DWORD count;
2011
2012 ReleaseThunkLock( &count );
2013 hModule = LoadLibraryA( libname );
2014 RestoreThunkLock( count );
2015 return hModule;
2016 }
2017
2018 /***************************************************************************
2019 * MapHModuleLS (KERNEL32.@)
2020 */
2021 HMODULE16 WINAPI MapHModuleLS(HMODULE hmod)
2022 {
2023 HMODULE16 ret;
2024 NE_MODULE *pModule;
2025
2026 if (!hmod)
2027 return TASK_GetCurrent()->hInstance;
2028 if (!HIWORD(hmod))
2029 return LOWORD(hmod); /* we already have a 16 bit module handle */
2030 pModule = GlobalLock16(hFirstModule);
2031 while (pModule) {
2032 if (pModule->module32 == hmod)
2033 return pModule->self;
2034 pModule = GlobalLock16(pModule->next);
2035 }
2036 if ((ret = create_dummy_module( hmod )) < 32)
2037 {
2038 SetLastError(ret);
2039 ret = 0;
2040 }
2041 return ret;
2042 }
2043
2044 /***************************************************************************
2045 * MapHModuleSL (KERNEL32.@)
2046 */
2047 HMODULE WINAPI MapHModuleSL(HMODULE16 hmod)
2048 {
2049 NE_MODULE *pModule;
2050
2051 if (!hmod) {
2052 TDB *pTask = TASK_GetCurrent();
2053 hmod = pTask->hModule;
2054 }
2055 pModule = GlobalLock16(hmod);
2056 if ((pModule->ne_magic != IMAGE_OS2_SIGNATURE) || !(pModule->ne_flags & NE_FFLAGS_WIN32))
2057 return 0;
2058 return pModule->module32;
2059 }
2060
2061 /***************************************************************************
2062 * MapHInstLS (KERNEL.472)
2063 */
2064 void WINAPI MapHInstLS16( CONTEXT *context )
2065 {
2066 context->Eax = MapHModuleLS( (HMODULE)context->Eax );
2067 }
2068
2069 /***************************************************************************
2070 * MapHInstSL (KERNEL.473)
2071 */
2072 void WINAPI MapHInstSL16( CONTEXT *context )
2073 {
2074 context->Eax = (DWORD)MapHModuleSL( context->Eax );
2075 }
2076
2077 /***************************************************************************
2078 * MapHInstLS (KERNEL32.@)
2079 */
2080 __ASM_STDCALL_FUNC( MapHInstLS, 0,
2081 "pushl %eax\n\t"
2082 "call " __ASM_NAME("MapHModuleLS") __ASM_STDCALL(4) "\n\t"
2083 "ret" )
2084
2085 /***************************************************************************
2086 * MapHInstSL (KERNEL32.@)
2087 */
2088 __ASM_STDCALL_FUNC( MapHInstSL, 0,
2089 "pushl %eax\n\t"
2090 "call " __ASM_NAME("MapHModuleSL") __ASM_STDCALL(4) "\n\t"
2091 "ret" )
2092
2093 /***************************************************************************
2094 * MapHInstLS_PN (KERNEL32.@)
2095 */
2096 __ASM_STDCALL_FUNC( MapHInstLS_PN, 0,
2097 "testl %eax,%eax\n\t"
2098 "jz 1f\n\t"
2099 "pushl %eax\n\t"
2100 "call " __ASM_NAME("MapHModuleLS") __ASM_STDCALL(4) "\n"
2101 "1:\tret" )
2102
2103 /***************************************************************************
2104 * MapHInstSL_PN (KERNEL32.@)
2105 */
2106 __ASM_STDCALL_FUNC( MapHInstSL_PN, 0,
2107 "andl $0xffff,%eax\n\t"
2108 "jz 1f\n\t"
2109 "pushl %eax\n\t"
2110 "call " __ASM_NAME("MapHModuleSL") __ASM_STDCALL(4) "\n"
2111 "1:\tret" )
Windows API implementation