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krnl386.exe16: Constify some variables.
[wine/multimedia.git] / dlls / krnl386.exe16 / ne_module.c
blob2fd367a220e4aca9e8e9cf0275aacbdd220ec79d
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
47 #include "pshpack1.h"
48 typedef struct _GPHANDLERDEF
49 {
50 WORD selector;
51 WORD rangeStart;
52 WORD rangeEnd;
53 WORD handler;
54 } GPHANDLERDEF;
55 #include "poppack.h"
56
57 /*
58 * Segment table entry
59 */
60 struct ne_segment_table_entry_s
61 {
62 WORD seg_data_offset; /* Sector offset of segment data */
63 WORD seg_data_length; /* Length of segment data */
64 WORD seg_flags; /* Flags associated with this segment */
65 WORD min_alloc; /* Minimum allocation size for this */
66 };
67
68 #define hFirstModule (pThhook->hExeHead)
69
70 static HINSTANCE16 NE_LoadModule( LPCSTR name, BOOL lib_only );
71 static BOOL16 NE_FreeModule( HMODULE16 hModule, BOOL call_wep );
72
73 static HINSTANCE16 MODULE_LoadModule16( LPCSTR libname, BOOL implicit, BOOL lib_only );
74
75 static HMODULE16 NE_GetModuleByFilename( LPCSTR name );
76
77
78 /* patch all the flat cs references of the code segment if necessary */
79 static inline void patch_code_segment( NE_MODULE *pModule )
80 {
81 int i;
82 CALLFROM16 *call;
83 SEGTABLEENTRY *pSeg = NE_SEG_TABLE( pModule );
84
85 for (i = 0; i < pModule->ne_cseg; i++, pSeg++)
86 if (!(pSeg->flags & NE_SEGFLAGS_DATA)) break; /* found the code segment */
87
88 call = GlobalLock16( pSeg->hSeg );
89
90 /* patch glue code address and code selector */
91 for (i = 0; call[i].pushl == 0x68; i++)
92 {
93 if (call[i].ret[0] == 0xca66 || call[i].ret[0] == 0xcb66) /* register entry point? */
94 call[i].glue = __wine_call_from_16_regs;
95 else
96 call[i].glue = __wine_call_from_16;
97 call[i].flatcs = wine_get_cs();
98 }
99
100 if (TRACE_ON(relay)) /* patch relay functions to all point to relay_call_from_16 */
101 for (i = 0; call[i].pushl == 0x68; i++) call[i].relay = relay_call_from_16;
102 }
103
104
105 /***********************************************************************
106 * contains_path
107 */
108 static inline int contains_path( LPCSTR name )
109 {
110 return ((*name && (name[1] == ':')) || strchr(name, '/') || strchr(name, '\\'));
111 }
112
113
114 /***********************************************************************
115 * NE_strcasecmp
116 *
117 * locale-independent case conversion for module lookups
118 */
119 static int NE_strcasecmp( const char *str1, const char *str2 )
120 {
121 int ret = 0;
122 for ( ; ; str1++, str2++)
123 if ((ret = RtlUpperChar(*str1) - RtlUpperChar(*str2)) || !*str1) break;
124 return ret;
125 }
126
127
128 /***********************************************************************
129 * NE_strncasecmp
130 *
131 * locale-independent case conversion for module lookups
132 */
133 static int NE_strncasecmp( const char *str1, const char *str2, int len )
134 {
135 int ret = 0;
136 for ( ; len > 0; len--, str1++, str2++)
137 if ((ret = RtlUpperChar(*str1) - RtlUpperChar(*str2)) || !*str1) break;
138 return ret;
139 }
140
141
142 /***********************************************************************
143 * NE_GetPtr
144 */
145 NE_MODULE *NE_GetPtr( HMODULE16 hModule )
146 {
147 return GlobalLock16( GetExePtr(hModule) );
148 }
149
150
151 /**********************************************************************
152 * NE_RegisterModule
153 */
154 static void NE_RegisterModule( NE_MODULE *pModule )
155 {
156 pModule->next = hFirstModule;
157 hFirstModule = pModule->self;
158 }
159
160
161 /***********************************************************************
162 * NE_DumpModule
163 */
164 void NE_DumpModule( HMODULE16 hModule )
165 {
166 int i, ordinal;
167 SEGTABLEENTRY *pSeg;
168 BYTE *pstr;
169 WORD *pword;
170 NE_MODULE *pModule;
171 ET_BUNDLE *bundle;
172 ET_ENTRY *entry;
173
174 if (!(pModule = NE_GetPtr( hModule )))
175 {
176 ERR( "**** %04x is not a module handle\n", hModule );
177 return;
178 }
179
180 /* Dump the module info */
181 TRACE( "---\n" );
182 TRACE( "Module %04x:\n", hModule );
183 TRACE( "count=%d flags=%04x heap=%d stack=%d\n",
184 pModule->count, pModule->ne_flags,
185 pModule->ne_heap, pModule->ne_stack );
186 TRACE( "cs:ip=%04x:%04x ss:sp=%04x:%04x ds=%04x nb seg=%d modrefs=%d\n",
187 SELECTOROF(pModule->ne_csip), OFFSETOF(pModule->ne_csip),
188 SELECTOROF(pModule->ne_sssp), OFFSETOF(pModule->ne_sssp),
189 pModule->ne_autodata, pModule->ne_cseg, pModule->ne_cmod );
190 TRACE( "os_flags=%d swap_area=%d version=%04x\n",
191 pModule->ne_exetyp, pModule->ne_swaparea, pModule->ne_expver );
192 if (pModule->ne_flags & NE_FFLAGS_WIN32)
193 TRACE( "PE module=%p\n", pModule->module32 );
194
195 /* Dump the file info */
196 TRACE( "---\n" );
197 TRACE( "Filename: '%s'\n", NE_MODULE_NAME(pModule) );
198
199 /* Dump the segment table */
200 TRACE( "---\n" );
201 TRACE( "Segment table:\n" );
202 pSeg = NE_SEG_TABLE( pModule );
203 for (i = 0; i < pModule->ne_cseg; i++, pSeg++)
204 TRACE( "%02x: pos=%d size=%d flags=%04x minsize=%d hSeg=%04x\n",
205 i + 1, pSeg->filepos, pSeg->size, pSeg->flags,
206 pSeg->minsize, pSeg->hSeg );
207
208 /* Dump the resource table */
209 TRACE( "---\n" );
210 TRACE( "Resource table:\n" );
211 if (pModule->ne_rsrctab)
212 {
213 pword = (WORD *)((BYTE *)pModule + pModule->ne_rsrctab);
214 TRACE( "Alignment: %d\n", *pword++ );
215 while (*pword)
216 {
217 NE_TYPEINFO *ptr = (NE_TYPEINFO *)pword;
218 NE_NAMEINFO *pname = (NE_NAMEINFO *)(ptr + 1);
219 TRACE( "id=%04x count=%d\n", ptr->type_id, ptr->count );
220 for (i = 0; i < ptr->count; i++, pname++)
221 TRACE( "offset=%d len=%d id=%04x\n",
222 pname->offset, pname->length, pname->id );
223 pword = (WORD *)pname;
224 }
225 }
226 else TRACE( "None\n" );
227
228 /* Dump the resident name table */
229 TRACE( "---\n" );
230 TRACE( "Resident-name table:\n" );
231 pstr = (BYTE*) pModule + pModule->ne_restab;
232 while (*pstr)
233 {
234 TRACE( "%*.*s: %d\n", *pstr, *pstr, pstr + 1,
235 *(WORD *)(pstr + *pstr + 1) );
236 pstr += *pstr + 1 + sizeof(WORD);
237 }
238
239 /* Dump the module reference table */
240 TRACE( "---\n" );
241 TRACE( "Module ref table:\n" );
242 if (pModule->ne_modtab)
243 {
244 pword = (WORD *)((BYTE *)pModule + pModule->ne_modtab);
245 for (i = 0; i < pModule->ne_cmod; i++, pword++)
246 {
247 char name[10];
248 GetModuleName16( *pword, name, sizeof(name) );
249 TRACE( "%d: %04x -> '%s'\n", i, *pword, name );
250 }
251 }
252 else TRACE( "None\n" );
253
254 /* Dump the entry table */
255 TRACE( "---\n" );
256 TRACE( "Entry table:\n" );
257 bundle = (ET_BUNDLE *)((BYTE *)pModule+pModule->ne_enttab);
258 do {
259 entry = (ET_ENTRY *)((BYTE *)bundle+6);
260 TRACE( "Bundle %d-%d: %02x\n", bundle->first, bundle->last, entry->type);
261 ordinal = bundle->first;
262 while (ordinal < bundle->last)
263 {
264 if (entry->type == 0xff)
265 TRACE("%d: %02x:%04x (moveable)\n", ordinal++, entry->segnum, entry->offs);
266 else
267 TRACE("%d: %02x:%04x (fixed)\n", ordinal++, entry->segnum, entry->offs);
268 entry++;
269 }
270 } while ( (bundle->next) && (bundle = ((ET_BUNDLE *)((BYTE *)pModule + bundle->next))) );
271
272 /* Dump the non-resident names table */
273 TRACE( "---\n" );
274 TRACE( "Non-resident names table:\n" );
275 if (pModule->nrname_handle)
276 {
277 pstr = GlobalLock16( pModule->nrname_handle );
278 while (*pstr)
279 {
280 TRACE( "%*.*s: %d\n", *pstr, *pstr, pstr + 1,
281 *(WORD *)(pstr + *pstr + 1) );
282 pstr += *pstr + 1 + sizeof(WORD);
283 }
284 }
285 TRACE( "\n" );
286 }
287
288
289 /***********************************************************************
290 * NE_WalkModules
291 *
292 * Walk the module list and print the modules.
293 */
294 void NE_WalkModules(void)
295 {
296 HMODULE16 hModule = hFirstModule;
297 MESSAGE( "Module Flags Name\n" );
298 while (hModule)
299 {
300 NE_MODULE *pModule = NE_GetPtr( hModule );
301 if (!pModule)
302 {
303 MESSAGE( "Bad module %04x in list\n", hModule );
304 return;
305 }
306 MESSAGE( " %04x %04x %.*s\n", hModule, pModule->ne_flags,
307 *((char *)pModule + pModule->ne_restab),
308 (char *)pModule + pModule->ne_restab + 1 );
309 hModule = pModule->next;
310 }
311 }
312
313
314 /***********************************************************************
315 * NE_InitResourceHandler
316 *
317 * Fill in 'resloader' fields in the resource table.
318 */
319 static void NE_InitResourceHandler( HMODULE16 hModule )
320 {
321 static FARPROC16 proc;
322
323 NE_TYPEINFO *pTypeInfo;
324 NE_MODULE *pModule;
325
326 if (!(pModule = NE_GetPtr( hModule )) || !pModule->ne_rsrctab) return;
327
328 TRACE("InitResourceHandler[%04x]\n", hModule );
329
330 if (!proc) proc = GetProcAddress16( GetModuleHandle16("KERNEL"), "DefResourceHandler" );
331
332 pTypeInfo = (NE_TYPEINFO *)((char *)pModule + pModule->ne_rsrctab + 2);
333 while(pTypeInfo->type_id)
334 {
335 memcpy_unaligned( &pTypeInfo->resloader, &proc, sizeof(FARPROC16) );
336 pTypeInfo = (NE_TYPEINFO *)((char*)(pTypeInfo + 1) + pTypeInfo->count * sizeof(NE_NAMEINFO));
337 }
338 }
339
340
341 /***********************************************************************
342 * NE_GetOrdinal
343 *
344 * Lookup the ordinal for a given name.
345 */
346 WORD NE_GetOrdinal( HMODULE16 hModule, const char *name )
347 {
348 char buffer[256], *p;
349 BYTE *cpnt;
350 BYTE len;
351 NE_MODULE *pModule;
352
353 if (!(pModule = NE_GetPtr( hModule ))) return 0;
354 if (pModule->ne_flags & NE_FFLAGS_WIN32) return 0;
355
356 TRACE("(%04x,'%s')\n", hModule, name );
357
358 /* First handle names of the form '#xxxx' */
359
360 if (name[0] == '#') return atoi( name + 1 );
361
362 /* Now copy and uppercase the string */
363
364 strcpy( buffer, name );
365 for (p = buffer; *p; p++) *p = RtlUpperChar(*p);
366 len = p - buffer;
367
368 /* First search the resident names */
369
370 cpnt = (BYTE *)pModule + pModule->ne_restab;
371
372 /* Skip the first entry (module name) */
373 cpnt += *cpnt + 1 + sizeof(WORD);
374 while (*cpnt)
375 {
376 if ((*cpnt == len) && !memcmp( cpnt+1, buffer, len ))
377 {
378 WORD ordinal;
379 memcpy( &ordinal, cpnt + *cpnt + 1, sizeof(ordinal) );
380 TRACE(" Found: ordinal=%d\n", ordinal );
381 return ordinal;
382 }
383 cpnt += *cpnt + 1 + sizeof(WORD);
384 }
385
386 /* Now search the non-resident names table */
387
388 if (!pModule->nrname_handle) return 0; /* No non-resident table */
389 cpnt = GlobalLock16( pModule->nrname_handle );
390
391 /* Skip the first entry (module description string) */
392 cpnt += *cpnt + 1 + sizeof(WORD);
393 while (*cpnt)
394 {
395 if ((*cpnt == len) && !memcmp( cpnt+1, buffer, len ))
396 {
397 WORD ordinal;
398 memcpy( &ordinal, cpnt + *cpnt + 1, sizeof(ordinal) );
399 TRACE(" Found: ordinal=%d\n", ordinal );
400 return ordinal;
401 }
402 cpnt += *cpnt + 1 + sizeof(WORD);
403 }
404 return 0;
405 }
406
407
408 /***********************************************************************
409 * NE_GetEntryPoint
410 */
411 FARPROC16 WINAPI NE_GetEntryPoint( HMODULE16 hModule, WORD ordinal )
412 {
413 return NE_GetEntryPointEx( hModule, ordinal, TRUE );
414 }
415
416 /***********************************************************************
417 * NE_GetEntryPointEx
418 */
419 FARPROC16 NE_GetEntryPointEx( HMODULE16 hModule, WORD ordinal, BOOL16 snoop )
420 {
421 NE_MODULE *pModule;
422 WORD sel, offset, i;
423
424 ET_ENTRY *entry;
425 ET_BUNDLE *bundle;
426
427 if (!(pModule = NE_GetPtr( hModule ))) return 0;
428 assert( !(pModule->ne_flags & NE_FFLAGS_WIN32) );
429
430 bundle = (ET_BUNDLE *)((BYTE *)pModule + pModule->ne_enttab);
431 while ((ordinal < bundle->first + 1) || (ordinal > bundle->last))
432 {
433 if (!(bundle->next))
434 return 0;
435 bundle = (ET_BUNDLE *)((BYTE *)pModule + bundle->next);
436 }
437
438 entry = (ET_ENTRY *)((BYTE *)bundle+6);
439 for (i=0; i < (ordinal - bundle->first - 1); i++)
440 entry++;
441
442 sel = entry->segnum;
443 memcpy( &offset, &entry->offs, sizeof(WORD) );
444
445 if (sel == 0xfe) sel = 0xffff; /* constant entry */
446 else sel = GlobalHandleToSel16(NE_SEG_TABLE(pModule)[sel-1].hSeg);
447 if (sel==0xffff)
448 return (FARPROC16)MAKESEGPTR( sel, offset );
449 if (!snoop)
450 return (FARPROC16)MAKESEGPTR( sel, offset );
451 else
452 return SNOOP16_GetProcAddress16(hModule,ordinal,(FARPROC16)MAKESEGPTR( sel, offset ));
453 }
454
455
456 /***********************************************************************
457 * EntryAddrProc (KERNEL.667) Wine-specific export
458 *
459 * Return the entry point for a given ordinal.
460 */
461 FARPROC16 WINAPI EntryAddrProc16( HMODULE16 hModule, WORD ordinal )
462 {
463 FARPROC16 ret = NE_GetEntryPointEx( hModule, ordinal, TRUE );
464 CURRENT_STACK16->ecx = hModule; /* FIXME: might be incorrect value */
465 return ret;
466 }
467
468 /***********************************************************************
469 * NE_SetEntryPoint
470 *
471 * Change the value of an entry point. Use with caution!
472 * It can only change the offset value, not the selector.
473 */
474 BOOL16 NE_SetEntryPoint( HMODULE16 hModule, WORD ordinal, WORD offset )
475 {
476 NE_MODULE *pModule;
477 ET_ENTRY *entry;
478 ET_BUNDLE *bundle;
479 int i;
480
481 if (!(pModule = NE_GetPtr( hModule ))) return FALSE;
482 assert( !(pModule->ne_flags & NE_FFLAGS_WIN32) );
483
484 bundle = (ET_BUNDLE *)((BYTE *)pModule + pModule->ne_enttab);
485 while ((ordinal < bundle->first + 1) || (ordinal > bundle->last))
486 {
487 bundle = (ET_BUNDLE *)((BYTE *)pModule + bundle->next);
488 if (!(bundle->next)) return 0;
489 }
490
491 entry = (ET_ENTRY *)((BYTE *)bundle+6);
492 for (i=0; i < (ordinal - bundle->first - 1); i++)
493 entry++;
494
495 memcpy( &entry->offs, &offset, sizeof(WORD) );
496 return TRUE;
497 }
498
499
500 /***********************************************************************
501 * build_bundle_data
502 *
503 * Build the entry table bundle data from the on-disk format. Helper for build_module.
504 */
505 static void *build_bundle_data( NE_MODULE *pModule, void *dest, const BYTE *table )
506 {
507 ET_BUNDLE *oldbundle, *bundle = dest;
508 ET_ENTRY *entry;
509 BYTE nr_entries, type;
510
511 memset(bundle, 0, sizeof(ET_BUNDLE)); /* in case no entry table exists */
512 entry = (ET_ENTRY *)((BYTE *)bundle+6);
513
514 while ((nr_entries = *table++))
515 {
516 if ((type = *table++))
517 {
518 bundle->last += nr_entries;
519 if (type == 0xff)
520 {
521 while (nr_entries--)
522 {
523 entry->type = type;
524 entry->flags = *table++;
525 table += sizeof(WORD);
526 entry->segnum = *table++;
527 entry->offs = *(const WORD *)table;
528 table += sizeof(WORD);
529 entry++;
530 }
531 }
532 else
533 {
534 while (nr_entries--)
535 {
536 entry->type = type;
537 entry->flags = *table++;
538 entry->segnum = type;
539 entry->offs = *(const WORD *)table;
540 table += sizeof(WORD);
541 entry++;
542 }
543 }
544 }
545 else
546 {
547 if (bundle->first == bundle->last)
548 {
549 bundle->first += nr_entries;
550 bundle->last += nr_entries;
551 }
552 else
553 {
554 oldbundle = bundle;
555 oldbundle->next = (char *)entry - (char *)pModule;
556 bundle = (ET_BUNDLE *)entry;
557 bundle->first = bundle->last = oldbundle->last + nr_entries;
558 bundle->next = 0;
559 entry = (ET_ENTRY*)(((BYTE*)entry)+sizeof(ET_BUNDLE));
560 }
561 }
562 }
563 return entry;
564 }
565
566
567 /***********************************************************************
568 * build_module
569 *
570 * Build the in-memory module from the on-disk data.
571 */
572 static HMODULE16 build_module( const void *mapping, SIZE_T mapping_size, LPCSTR path )
573 {
574 const IMAGE_DOS_HEADER *mz_header = mapping;
575 const IMAGE_OS2_HEADER *ne_header;
576 const struct ne_segment_table_entry_s *pSeg;
577 const void *ptr;
578 int i;
579 size_t size;
580 HMODULE16 hModule;
581 NE_MODULE *pModule;
582 BYTE *buffer, *pData, *end;
583 OFSTRUCT *ofs;
584
585 if (mapping_size < sizeof(*mz_header)) return ERROR_BAD_FORMAT;
586 if (mz_header->e_magic != IMAGE_DOS_SIGNATURE) return ERROR_BAD_FORMAT;
587 ne_header = (const IMAGE_OS2_HEADER *)((const char *)mapping + mz_header->e_lfanew);
588 if (mz_header->e_lfanew + sizeof(*ne_header) > mapping_size) return ERROR_BAD_FORMAT;
589 if (ne_header->ne_magic == IMAGE_NT_SIGNATURE) return 21; /* win32 exe */
590 if (ne_header->ne_magic == IMAGE_OS2_SIGNATURE_LX)
591 {
592 MESSAGE("Sorry, %s is an OS/2 linear executable (LX) file!\n", path);
593 return 12;
594 }
595 if (ne_header->ne_magic != IMAGE_OS2_SIGNATURE) return ERROR_BAD_FORMAT;
596
597 /* We now have a valid NE header */
598
599 /* check to be able to fall back to loading OS/2 programs as DOS
600 * FIXME: should this check be reversed in order to be less strict?
601 * (only fail for OS/2 ne_exetyp 0x01 here?) */
602 if ((ne_header->ne_exetyp != 0x02 /* Windows */)
603 && (ne_header->ne_exetyp != 0x04) /* Windows 386 */)
604 return ERROR_BAD_FORMAT;
605
606 size = sizeof(NE_MODULE) +
607 /* segment table */
608 ne_header->ne_cseg * sizeof(SEGTABLEENTRY) +
609 /* resource table */
610 ne_header->ne_restab - ne_header->ne_rsrctab +
611 /* resident names table */
612 ne_header->ne_modtab - ne_header->ne_restab +
613 /* module ref table */
614 ne_header->ne_cmod * sizeof(WORD) +
615 /* imported names table */
616 ne_header->ne_enttab - ne_header->ne_imptab +
617 /* entry table length */
618 ne_header->ne_cbenttab +
619 /* entry table extra conversion space */
620 sizeof(ET_BUNDLE) +
621 2 * (ne_header->ne_cbenttab - ne_header->ne_cmovent*6) +
622 /* loaded file info */
623 sizeof(OFSTRUCT) - sizeof(ofs->szPathName) + strlen(path) + 1;
624
625 hModule = GlobalAlloc16( GMEM_FIXED | GMEM_ZEROINIT, size );
626 if (!hModule) return ERROR_BAD_FORMAT;
627
628 FarSetOwner16( hModule, hModule );
629 pModule = GlobalLock16( hModule );
630 memcpy( pModule, ne_header, sizeof(*ne_header) );
631 pModule->count = 0;
632 /* check programs for default minimal stack size */
633 if (!(pModule->ne_flags & NE_FFLAGS_LIBMODULE) && (pModule->ne_stack < 0x1400))
634 pModule->ne_stack = 0x1400;
635
636 pModule->self = hModule;
637 pModule->mapping = mapping;
638 pModule->mapping_size = mapping_size;
639
640 pData = (BYTE *)(pModule + 1);
641
642 /* Clear internal Wine flags in case they are set in the EXE file */
643
644 pModule->ne_flags &= ~(NE_FFLAGS_BUILTIN | NE_FFLAGS_WIN32);
645
646 /* Get the segment table */
647
648 pModule->ne_segtab = pData - (BYTE *)pModule;
649 if (!(pSeg = NE_GET_DATA( pModule, mz_header->e_lfanew + ne_header->ne_segtab,
650 ne_header->ne_cseg * sizeof(struct ne_segment_table_entry_s) )))
651 goto failed;
652 for (i = ne_header->ne_cseg; i > 0; i--, pSeg++)
653 {
654 memcpy( pData, pSeg, sizeof(*pSeg) );
655 pData += sizeof(SEGTABLEENTRY);
656 }
657
658 /* Get the resource table */
659
660 if (ne_header->ne_rsrctab < ne_header->ne_restab)
661 {
662 pModule->ne_rsrctab = pData - (BYTE *)pModule;
663 if (!NE_READ_DATA( pModule, pData, mz_header->e_lfanew + ne_header->ne_rsrctab,
664 ne_header->ne_restab - ne_header->ne_rsrctab )) goto failed;
665 pData += ne_header->ne_restab - ne_header->ne_rsrctab;
666 }
667 else pModule->ne_rsrctab = 0; /* No resource table */
668
669 /* Get the resident names table */
670
671 pModule->ne_restab = pData - (BYTE *)pModule;
672 if (!NE_READ_DATA( pModule, pData, mz_header->e_lfanew + ne_header->ne_restab,
673 ne_header->ne_modtab - ne_header->ne_restab )) goto failed;
674 pData += ne_header->ne_modtab - ne_header->ne_restab;
675
676 /* Get the module references table */
677
678 if (ne_header->ne_cmod > 0)
679 {
680 pModule->ne_modtab = pData - (BYTE *)pModule;
681 if (!NE_READ_DATA( pModule, pData, mz_header->e_lfanew + ne_header->ne_modtab,
682 ne_header->ne_cmod * sizeof(WORD) )) goto failed;
683 pData += ne_header->ne_cmod * sizeof(WORD);
684 }
685 else pModule->ne_modtab = 0; /* No module references */
686
687 /* Get the imported names table */
688
689 pModule->ne_imptab = pData - (BYTE *)pModule;
690 if (!NE_READ_DATA( pModule, pData, mz_header->e_lfanew + ne_header->ne_imptab,
691 ne_header->ne_enttab - ne_header->ne_imptab )) goto failed;
692 pData += ne_header->ne_enttab - ne_header->ne_imptab;
693
694 /* Load entry table, convert it to the optimized version used by Windows */
695
696 pModule->ne_enttab = pData - (BYTE *)pModule;
697 if (!(ptr = NE_GET_DATA( pModule, mz_header->e_lfanew + ne_header->ne_enttab,
698 ne_header->ne_cbenttab ))) goto failed;
699 end = build_bundle_data( pModule, pData, ptr );
700
701 pData += ne_header->ne_cbenttab + sizeof(ET_BUNDLE) +
702 2 * (ne_header->ne_cbenttab - ne_header->ne_cmovent*6);
703
704 if (end > pData)
705 {
706 FIXME( "not enough space for entry table for %s\n", debugstr_a(path) );
707 goto failed;
708 }
709
710 /* Store the filename information */
711
712 pModule->fileinfo = pData - (BYTE *)pModule;
713 ofs = (OFSTRUCT *)pData;
714 ofs->cBytes = sizeof(OFSTRUCT) - sizeof(ofs->szPathName) + strlen(path);
715 ofs->fFixedDisk = 1;
716 strcpy( ofs->szPathName, path );
717 pData += ofs->cBytes + 1;
718 assert( (BYTE *)pModule + size <= pData );
719
720 /* Get the non-resident names table */
721
722 if (ne_header->ne_cbnrestab)
723 {
724 pModule->nrname_handle = GlobalAlloc16( 0, ne_header->ne_cbnrestab );
725 if (!pModule->nrname_handle) goto failed;
726 FarSetOwner16( pModule->nrname_handle, hModule );
727 buffer = GlobalLock16( pModule->nrname_handle );
728 if (!NE_READ_DATA( pModule, buffer, ne_header->ne_nrestab, ne_header->ne_cbnrestab ))
729 {
730 GlobalFree16( pModule->nrname_handle );
731 pModule->nrname_handle = 0;
732 }
733 }
734 else pModule->nrname_handle = 0;
735
736 /* Allocate a segment for the implicitly-loaded DLLs */
737
738 if (pModule->ne_cmod)
739 {
740 pModule->dlls_to_init = GlobalAlloc16( GMEM_ZEROINIT,
741 (pModule->ne_cmod+1)*sizeof(HMODULE16) );
742 if (!pModule->dlls_to_init)
743 {
744 if (pModule->nrname_handle) GlobalFree16( pModule->nrname_handle );
745 goto failed;
746 }
747 FarSetOwner16( pModule->dlls_to_init, hModule );
748 }
749 else pModule->dlls_to_init = 0;
750
751 NE_RegisterModule( pModule );
752 return hModule;
753
754 failed:
755 GlobalFree16( hModule );
756 return ERROR_BAD_FORMAT;
757 }
758
759
760 /***********************************************************************
761 * NE_LoadDLLs
762 *
763 * Load all DLLs implicitly linked to a module.
764 */
765 static BOOL NE_LoadDLLs( NE_MODULE *pModule )
766 {
767 int i;
768 WORD *pModRef = (WORD *)((char *)pModule + pModule->ne_modtab);
769 WORD *pDLLs = GlobalLock16( pModule->dlls_to_init );
770
771 for (i = 0; i < pModule->ne_cmod; i++, pModRef++)
772 {
773 char buffer[260], *p;
774 BYTE *pstr = (BYTE *)pModule + pModule->ne_imptab + *pModRef;
775 memcpy( buffer, pstr + 1, *pstr );
776 *(buffer + *pstr) = 0; /* terminate it */
777
778 TRACE("Loading '%s'\n", buffer );
779 if (!(*pModRef = GetModuleHandle16( buffer )))
780 {
781 /* If the DLL is not loaded yet, load it and store */
782 /* its handle in the list of DLLs to initialize. */
783 HMODULE16 hDLL;
784
785 /* Append .DLL to name if no extension present */
786 if (!(p = strrchr( buffer, '.')) || strchr( p, '/' ) || strchr( p, '\\'))
787 strcat( buffer, ".DLL" );
788
789 if ((hDLL = MODULE_LoadModule16( buffer, TRUE, TRUE )) < 32)
790 {
791 /* FIXME: cleanup what was done */
792
793 MESSAGE( "Could not load '%s' required by '%.*s', error=%d\n",
794 buffer, *((BYTE*)pModule + pModule->ne_restab),
795 (char *)pModule + pModule->ne_restab + 1, hDLL );
796 return FALSE;
797 }
798 *pModRef = GetExePtr( hDLL );
799 *pDLLs++ = *pModRef;
800 }
801 else /* Increment the reference count of the DLL */
802 {
803 NE_MODULE *pOldDLL = NE_GetPtr( *pModRef );
804 if (pOldDLL) pOldDLL->count++;
805 }
806 }
807 return TRUE;
808 }
809
810
811 /**********************************************************************
812 * NE_DoLoadModule
813 *
814 * Load first instance of NE module from file.
815 *
816 * pModule must point to a module structure prepared by build_module.
817 * This routine must never be called twice on a module.
818 */
819 static HINSTANCE16 NE_DoLoadModule( NE_MODULE *pModule )
820 {
821 /* Allocate the segments for this module */
822
823 if (!NE_CreateAllSegments( pModule ))
824 return ERROR_NOT_ENOUGH_MEMORY; /* 8 */
825
826 /* Load the referenced DLLs */
827
828 if (!NE_LoadDLLs( pModule ))
829 return ERROR_FILE_NOT_FOUND; /* 2 */
830
831 /* Load the segments */
832
833 NE_LoadAllSegments( pModule );
834
835 /* Make sure the usage count is 1 on the first loading of */
836 /* the module, even if it contains circular DLL references */
837
838 pModule->count = 1;
839
840 return NE_GetInstance( pModule );
841 }
842
843 /**********************************************************************
844 * NE_LoadModule
845 *
846 * Load first instance of NE module. (Note: caller is responsible for
847 * ensuring the module isn't already loaded!)
848 *
849 * If the module turns out to be an executable module, only a
850 * handle to a module stub is returned; this needs to be initialized
851 * by calling NE_DoLoadModule later, in the context of the newly
852 * created process.
853 *
854 * If lib_only is TRUE, however, the module is perforce treated
855 * like a DLL module, even if it is an executable module.
856 *
857 */
858 static HINSTANCE16 NE_LoadModule( LPCSTR name, BOOL lib_only )
859 {
860 NE_MODULE *pModule;
861 HMODULE16 hModule;
862 HINSTANCE16 hInstance;
863 HFILE16 hFile;
864 OFSTRUCT ofs;
865 HANDLE mapping;
866 void *ptr;
867 MEMORY_BASIC_INFORMATION info;
868
869 /* Open file */
870 if ((hFile = OpenFile16( name, &ofs, OF_READ|OF_SHARE_DENY_WRITE )) == HFILE_ERROR16)
871 return ERROR_FILE_NOT_FOUND;
872
873 mapping = CreateFileMappingW( DosFileHandleToWin32Handle(hFile), NULL, PAGE_WRITECOPY, 0, 0, NULL );
874 _lclose16( hFile );
875 if (!mapping) return ERROR_BAD_FORMAT;
876
877 ptr = MapViewOfFile( mapping, FILE_MAP_COPY, 0, 0, 0 );
878 CloseHandle( mapping );
879 if (!ptr) return ERROR_BAD_FORMAT;
880
881 VirtualQuery( ptr, &info, sizeof(info) );
882 hModule = build_module( ptr, info.RegionSize, ofs.szPathName );
883
884 if (hModule < 32)
885 {
886 UnmapViewOfFile( ptr );
887 return hModule;
888 }
889
890 SNOOP16_RegisterDLL( hModule, ofs.szPathName );
891 NE_InitResourceHandler( hModule );
892
893 pModule = NE_GetPtr( hModule );
894
895 if ( !lib_only && !( pModule->ne_flags & NE_FFLAGS_LIBMODULE ) )
896 return hModule;
897
898 hInstance = NE_DoLoadModule( pModule );
899 if ( hInstance < 32 )
900 {
901 /* cleanup ... */
902 NE_FreeModule( hModule, 0 );
903 }
904
905 return hInstance;
906 }
907
908
909 /***********************************************************************
910 * NE_DoLoadBuiltinModule
911 *
912 * Load a built-in Win16 module. Helper function for NE_LoadBuiltinModule.
913 */
914 static HMODULE16 NE_DoLoadBuiltinModule( const IMAGE_DOS_HEADER *mz_header, const char *file_name,
915 HMODULE owner32 )
916 {
917 NE_MODULE *pModule;
918 HMODULE16 hModule;
919 HINSTANCE16 hInstance;
920 SIZE_T mapping_size = ~0UL; /* assume builtins don't contain invalid offsets... */
921
922 hModule = build_module( mz_header, mapping_size, file_name );
923 if (hModule < 32) return hModule;
924 pModule = GlobalLock16( hModule );
925 pModule->ne_flags |= NE_FFLAGS_BUILTIN;
926 pModule->owner32 = owner32;
927
928 /* fake the expected version the module should have according to the current Windows version */
929 pModule->ne_expver = MAKEWORD( NtCurrentTeb()->Peb->OSMajorVersion,
930 NtCurrentTeb()->Peb->OSMinorVersion );
931
932 hInstance = NE_DoLoadModule( pModule );
933 if (hInstance < 32) NE_FreeModule( hModule, 0 );
934
935 NE_InitResourceHandler( hModule );
936
937 if (pModule->ne_heap)
938 {
939 SEGTABLEENTRY *pSeg = NE_SEG_TABLE( pModule ) + pModule->ne_autodata - 1;
940 unsigned int size = pSeg->minsize + pModule->ne_heap;
941 if (size > 0xfffe) size = 0xfffe;
942 LocalInit16( GlobalHandleToSel16(pSeg->hSeg), pSeg->minsize, size );
943 }
944
945 patch_code_segment( pModule );
946
947 return hInstance;
948 }
949
950
951 /**********************************************************************
952 * MODULE_LoadModule16
953 *
954 * Load a NE module in the order of the loadorder specification.
955 * The caller is responsible that the module is not loaded already.
956 *
957 */
958 static HINSTANCE16 MODULE_LoadModule16( LPCSTR libname, BOOL implicit, BOOL lib_only )
959 {
960 HINSTANCE16 hinst = 2;
961 HMODULE16 hModule;
962 HMODULE mod32 = 0;
963 NE_MODULE *pModule;
964 const IMAGE_DOS_HEADER *descr = NULL;
965 const char *file_name = NULL;
966 char dllname[32];
967 const char *basename, *main_module, *p;
968
969 /* strip path information */
970
971 basename = libname;
972 if (basename[0] && basename[1] == ':') basename += 2; /* strip drive specification */
973 if ((p = strrchr( basename, '\\' ))) basename = p + 1;
974 if ((p = strrchr( basename, '/' ))) basename = p + 1;
975
976 if (strlen(basename) < sizeof(dllname)-6)
977 {
978 char *q;
979
980 strcpy( dllname, basename );
981 q = strrchr( dllname, '.' );
982 if (!q) strcat( dllname, ".dll" );
983 for (q = dllname; *q; q++) if (*q >= 'A' && *q <= 'Z') *q += 32;
984
985 strcpy( q, "16" );
986 if ((mod32 = LoadLibraryA( dllname )))
987 {
988 if (!(descr = (void *)GetProcAddress( mod32, "__wine_spec_dos_header" )))
989 {
990 WARN( "loaded %s but does not contain a 16-bit module\n", debugstr_a(dllname) );
991 FreeLibrary( mod32 );
992 }
993 else
994 {
995 TRACE( "found %s with embedded 16-bit module\n", debugstr_a(dllname) );
996 file_name = basename;
997
998 /* if module has a 32-bit owner, match the load order of the owner */
999 if ((main_module = (void *)GetProcAddress( mod32, "__wine_spec_main_module" )))
1000 {
1001 LDR_MODULE *ldr;
1002 HMODULE main_owner = LoadLibraryA( main_module );
1003
1004 if (!main_owner)
1005 {
1006 WARN( "couldn't load owner %s for 16-bit dll %s\n", main_module, dllname );
1007 FreeLibrary( mod32 );
1008 return ERROR_FILE_NOT_FOUND;
1009 }
1010 /* check if module was loaded native */
1011 if (LdrFindEntryForAddress( main_owner, &ldr ) || !(ldr->Flags & LDR_WINE_INTERNAL))
1012 {
1013 FreeLibrary( mod32 );
1014 descr = NULL;
1015 }
1016 FreeLibrary( main_owner );
1017 }
1018 }
1019 }
1020
1021 /* loading the 32-bit library can have the side effect of loading the module */
1022 /* if so, simply incr the ref count and return the module */
1023 if (descr && (hModule = GetModuleHandle16( libname )))
1024 {
1025 TRACE( "module %s already loaded by owner\n", libname );
1026 pModule = NE_GetPtr( hModule );
1027 if (pModule) pModule->count++;
1028 FreeLibrary( mod32 );
1029 return hModule;
1030 }
1031 }
1032
1033 if (descr)
1034 {
1035 TRACE("Trying built-in '%s'\n", libname);
1036 hinst = NE_DoLoadBuiltinModule( descr, file_name, mod32 );
1037 if (hinst > 32) TRACE_(loaddll)("Loaded module %s : builtin\n", debugstr_a(file_name));
1038 }
1039 else
1040 {
1041 TRACE("Trying native dll '%s'\n", libname);
1042 hinst = NE_LoadModule(libname, lib_only);
1043 if (hinst > 32) TRACE_(loaddll)("Loaded module %s : native\n", debugstr_a(libname));
1044 }
1045
1046 if (hinst > 32 && !implicit)
1047 {
1048 hModule = GetModuleHandle16(libname);
1049 if(!hModule)
1050 {
1051 ERR("Serious trouble. Just loaded module '%s' (hinst=0x%04x), but can't get module handle. Filename too long ?\n",
1052 libname, hinst);
1053 return ERROR_INVALID_HANDLE;
1054 }
1055
1056 pModule = NE_GetPtr(hModule);
1057 if(!pModule)
1058 {
1059 ERR("Serious trouble. Just loaded module '%s' (hinst=0x%04x), but can't get NE_MODULE pointer\n",
1060 libname, hinst);
1061 return ERROR_INVALID_HANDLE;
1062 }
1063
1064 TRACE("Loaded module '%s' at 0x%04x.\n", libname, hinst);
1065
1066 /*
1067 * Call initialization routines for all loaded DLLs. Note that
1068 * when we load implicitly linked DLLs this will be done by InitTask().
1069 */
1070 if(pModule->ne_flags & NE_FFLAGS_LIBMODULE)
1071 {
1072 NE_InitializeDLLs(hModule);
1073 NE_DllProcessAttach(hModule);
1074 }
1075 else DOSMEM_InitDosMemory(); /* we will be running a 16-bit task, setup DOS memory */
1076 }
1077 return hinst; /* The last error that occurred */
1078 }
1079
1080
1081 /**********************************************************************
1082 * NE_CreateThread
1083 *
1084 * Create the thread for a 16-bit module.
1085 */
1086 static HINSTANCE16 NE_CreateThread( NE_MODULE *pModule, WORD cmdShow, LPCSTR cmdline )
1087 {
1088 HANDLE hThread;
1089 TDB *pTask;
1090 HTASK16 hTask;
1091 HINSTANCE16 instance = 0;
1092
1093 if (!(hTask = TASK_SpawnTask( pModule, cmdShow, cmdline + 1, *cmdline, &hThread )))
1094 return 0;
1095
1096 /* Post event to start the task */
1097 PostEvent16( hTask );
1098
1099 /* Wait until we get the instance handle */
1100 do
1101 {
1102 DirectedYield16( hTask );
1103 if (!IsTask16( hTask )) /* thread has died */
1104 {
1105 DWORD exit_code;
1106 WaitForSingleObject( hThread, INFINITE );
1107 GetExitCodeThread( hThread, &exit_code );
1108 CloseHandle( hThread );
1109 return exit_code;
1110 }
1111 if (!(pTask = GlobalLock16( hTask ))) break;
1112 instance = pTask->hInstance;
1113 GlobalUnlock16( hTask );
1114 } while (!instance);
1115
1116 CloseHandle( hThread );
1117 return instance;
1118 }
1119
1120
1121 /**********************************************************************
1122 * LoadModule (KERNEL.45)
1123 */
1124 HINSTANCE16 WINAPI LoadModule16( LPCSTR name, LPVOID paramBlock )
1125 {
1126 BOOL lib_only = !paramBlock || (paramBlock == (LPVOID)-1);
1127 LOADPARAMS16 *params;
1128 HMODULE16 hModule;
1129 NE_MODULE *pModule;
1130 LPSTR cmdline;
1131 WORD cmdShow = 1; /* SW_SHOWNORMAL but we don't want to include winuser.h here */
1132
1133 if (name == NULL) return 0;
1134
1135 TRACE("name %s, paramBlock %p\n", name, paramBlock);
1136
1137 /* Load module */
1138
1139 if ( (hModule = NE_GetModuleByFilename(name) ) != 0 )
1140 {
1141 /* Special case: second instance of an already loaded NE module */
1142
1143 if ( !( pModule = NE_GetPtr( hModule ) ) ) return ERROR_BAD_FORMAT;
1144 if ( pModule->module32 ) return (HINSTANCE16)21;
1145
1146 /* Increment refcount */
1147
1148 pModule->count++;
1149 }
1150 else
1151 {
1152 /* Main case: load first instance of NE module */
1153
1154 if ( (hModule = MODULE_LoadModule16( name, FALSE, lib_only )) < 32 )
1155 return hModule;
1156
1157 if ( !(pModule = NE_GetPtr( hModule )) )
1158 return ERROR_BAD_FORMAT;
1159 }
1160
1161 /* If library module, we just retrieve the instance handle */
1162
1163 if ( ( pModule->ne_flags & NE_FFLAGS_LIBMODULE ) || lib_only )
1164 return NE_GetInstance( pModule );
1165
1166 /*
1167 * At this point, we need to create a new process.
1168 *
1169 * pModule points either to an already loaded module, whose refcount
1170 * has already been incremented (to avoid having the module vanish
1171 * in the meantime), or else to a stub module which contains only header
1172 * information.
1173 */
1174 params = paramBlock;
1175 if (params->showCmd)
1176 cmdShow = ((WORD *)MapSL( params->showCmd ))[1];
1177 cmdline = MapSL( params->cmdLine );
1178 return NE_CreateThread( pModule, cmdShow, cmdline );
1179 }
1180
1181
1182 /**********************************************************************
1183 * NE_StartTask
1184 *
1185 * Startup code for a new 16-bit task.
1186 */
1187 DWORD NE_StartTask(void)
1188 {
1189 TDB *pTask = TASK_GetCurrent();
1190 NE_MODULE *pModule = NE_GetPtr( pTask->hModule );
1191 HINSTANCE16 hInstance, hPrevInstance;
1192 SEGTABLEENTRY *pSegTable = NE_SEG_TABLE( pModule );
1193 WORD sp;
1194
1195 if ( pModule->count > 0 )
1196 {
1197 /* Second instance of an already loaded NE module */
1198 /* Note that the refcount was already incremented by the parent */
1199
1200 hPrevInstance = NE_GetInstance( pModule );
1201
1202 if ( pModule->ne_autodata )
1203 if ( NE_CreateSegment( pModule, pModule->ne_autodata ) )
1204 NE_LoadSegment( pModule, pModule->ne_autodata );
1205
1206 hInstance = NE_GetInstance( pModule );
1207 TRACE("created second instance %04x[%d] of instance %04x.\n", hInstance, pModule->ne_autodata, hPrevInstance);
1208
1209 }
1210 else
1211 {
1212 /* Load first instance of NE module */
1213
1214 pModule->ne_flags |= NE_FFLAGS_GUI; /* FIXME: is this necessary? */
1215
1216 hInstance = NE_DoLoadModule( pModule );
1217 hPrevInstance = 0;
1218 }
1219
1220 if ( hInstance >= 32 )
1221 {
1222 CONTEXT context;
1223
1224 /* Enter instance handles into task struct */
1225
1226 pTask->hInstance = hInstance;
1227 pTask->hPrevInstance = hPrevInstance;
1228
1229 /* Use DGROUP for 16-bit stack */
1230
1231 if (!(sp = OFFSETOF(pModule->ne_sssp)))
1232 sp = pSegTable[SELECTOROF(pModule->ne_sssp)-1].minsize + pModule->ne_stack;
1233 sp &= ~1;
1234 sp -= sizeof(STACK16FRAME);
1235 NtCurrentTeb()->WOW32Reserved = (void *)MAKESEGPTR( GlobalHandleToSel16(hInstance), sp );
1236
1237 /* Registers at initialization must be:
1238 * ax zero
1239 * bx stack size in bytes
1240 * cx heap size in bytes
1241 * si previous app instance
1242 * di current app instance
1243 * bp zero
1244 * es selector to the PSP
1245 * ds dgroup of the application
1246 * ss stack selector
1247 * sp top of the stack
1248 */
1249 memset( &context, 0, sizeof(context) );
1250 context.SegCs = GlobalHandleToSel16(pSegTable[SELECTOROF(pModule->ne_csip) - 1].hSeg);
1251 context.SegDs = GlobalHandleToSel16(pTask->hInstance);
1252 context.SegEs = pTask->hPDB;
1253 context.SegFs = wine_get_fs();
1254 context.SegGs = wine_get_gs();
1255 context.Eip = OFFSETOF(pModule->ne_csip);
1256 context.Ebx = pModule->ne_stack;
1257 context.Ecx = pModule->ne_heap;
1258 context.Edi = pTask->hInstance;
1259 context.Esi = pTask->hPrevInstance;
1260
1261 /* Now call 16-bit entry point */
1262
1263 TRACE("Starting main program: cs:ip=%04x:%04x ds=%04x ss:sp=%04x:%04x\n",
1264 context.SegCs, context.Eip, context.SegDs,
1265 SELECTOROF(NtCurrentTeb()->WOW32Reserved),
1266 OFFSETOF(NtCurrentTeb()->WOW32Reserved) );
1267
1268 WOWCallback16Ex( 0, WCB16_REGS, 0, NULL, (DWORD *)&context );
1269 ExitThread( LOWORD(context.Eax) );
1270 }
1271 return hInstance; /* error code */
1272 }
1273
1274 /***********************************************************************
1275 * LoadLibrary (KERNEL.95)
1276 * LoadLibrary16 (KERNEL32.35)
1277 */
1278 HINSTANCE16 WINAPI LoadLibrary16( LPCSTR libname )
1279 {
1280 return LoadModule16(libname, (LPVOID)-1 );
1281 }
1282
1283
1284 /**********************************************************************
1285 * MODULE_CallWEP
1286 *
1287 * Call a DLL's WEP, allowing it to shut down.
1288 * FIXME: we always pass the WEP WEP_FREE_DLL, never WEP_SYSTEM_EXIT
1289 */
1290 static BOOL16 MODULE_CallWEP( HMODULE16 hModule )
1291 {
1292 BOOL16 ret;
1293 FARPROC16 WEP = GetProcAddress16( hModule, "WEP" );
1294 if (!WEP) return FALSE;
1295
1296 __TRY
1297 {
1298 WORD args[1];
1299 DWORD dwRet;
1300
1301 args[0] = WEP_FREE_DLL;
1302 WOWCallback16Ex( (DWORD)WEP, WCB16_PASCAL, sizeof(args), args, &dwRet );
1303 ret = LOWORD(dwRet);
1304 }
1305 __EXCEPT_PAGE_FAULT
1306 {
1307 WARN("Page fault\n");
1308 ret = 0;
1309 }
1310 __ENDTRY
1311
1312 return ret;
1313 }
1314
1315
1316 /**********************************************************************
1317 * NE_FreeModule
1318 *
1319 * Implementation of FreeModule16().
1320 */
1321 static BOOL16 NE_FreeModule( HMODULE16 hModule, BOOL call_wep )
1322 {
1323 HMODULE16 *hPrevModule;
1324 NE_MODULE *pModule;
1325 HMODULE16 *pModRef;
1326 int i;
1327
1328 if (!(pModule = NE_GetPtr( hModule ))) return FALSE;
1329 hModule = pModule->self;
1330
1331 TRACE("%04x count %d\n", hModule, pModule->count );
1332
1333 if (((INT16)(--pModule->count)) > 0 ) return TRUE;
1334 else pModule->count = 0;
1335
1336 if (call_wep && !(pModule->ne_flags & NE_FFLAGS_WIN32))
1337 {
1338 /* Free the objects owned by the DLL module */
1339 NE_CallUserSignalProc( hModule, USIG16_DLL_UNLOAD );
1340
1341 if (pModule->ne_flags & NE_FFLAGS_LIBMODULE)
1342 MODULE_CallWEP( hModule );
1343 else
1344 call_wep = FALSE; /* We are freeing a task -> no more WEPs */
1345 }
1346
1347 TRACE_(loaddll)("Unloaded module %s : %s\n", debugstr_a(NE_MODULE_NAME(pModule)),
1348 (pModule->ne_flags & NE_FFLAGS_BUILTIN) ? "builtin" : "native");
1349
1350 /* Clear magic number just in case */
1351
1352 pModule->ne_magic = pModule->self = 0;
1353 if (pModule->owner32) FreeLibrary( pModule->owner32 );
1354 else if (pModule->mapping) UnmapViewOfFile( pModule->mapping );
1355
1356 /* Remove it from the linked list */
1357
1358 hPrevModule = &hFirstModule;
1359 while (*hPrevModule && (*hPrevModule != hModule))
1360 {
1361 hPrevModule = &(NE_GetPtr( *hPrevModule ))->next;
1362 }
1363 if (*hPrevModule) *hPrevModule = pModule->next;
1364
1365 /* Free the referenced modules */
1366
1367 pModRef = (HMODULE16*)((char *)pModule + pModule->ne_modtab);
1368 for (i = 0; i < pModule->ne_cmod; i++, pModRef++)
1369 {
1370 NE_FreeModule( *pModRef, call_wep );
1371 }
1372
1373 /* Free the module storage */
1374
1375 GlobalFreeAll16( hModule );
1376 return TRUE;
1377 }
1378
1379
1380 /**********************************************************************
1381 * FreeModule (KERNEL.46)
1382 */
1383 BOOL16 WINAPI FreeModule16( HMODULE16 hModule )
1384 {
1385 return NE_FreeModule( hModule, TRUE );
1386 }
1387
1388
1389 /***********************************************************************
1390 * FreeLibrary (KERNEL.96)
1391 * FreeLibrary16 (KERNEL32.36)
1392 */
1393 void WINAPI FreeLibrary16( HINSTANCE16 handle )
1394 {
1395 TRACE("%04x\n", handle );
1396 FreeModule16( handle );
1397 }
1398
1399
1400 /***********************************************************************
1401 * GetModuleHandle16 (KERNEL32.@)
1402 */
1403 HMODULE16 WINAPI GetModuleHandle16( LPCSTR name )
1404 {
1405 HMODULE16 hModule;
1406 LPSTR s;
1407 BYTE len, *name_table;
1408 char tmpstr[MAX_PATH];
1409 NE_MODULE *pModule;
1410
1411 TRACE("(%s)\n", name);
1412
1413 if (!HIWORD(name)) return GetExePtr(LOWORD(name));
1414
1415 len = strlen(name);
1416 if (!len) return 0;
1417
1418 lstrcpynA(tmpstr, name, sizeof(tmpstr));
1419
1420 /* If 'name' matches exactly the module name of a module:
1421 * Return its handle.
1422 */
1423 for (hModule = hFirstModule; hModule ; hModule = pModule->next)
1424 {
1425 pModule = NE_GetPtr( hModule );
1426 if (!pModule) break;
1427 if (pModule->ne_flags & NE_FFLAGS_WIN32) continue;
1428
1429 name_table = (BYTE *)pModule + pModule->ne_restab;
1430 if ((*name_table == len) && !strncmp(name, (char*) name_table+1, len))
1431 return hModule;
1432 }
1433
1434 /* If uppercased 'name' matches exactly the module name of a module:
1435 * Return its handle
1436 */
1437 for (s = tmpstr; *s; s++) *s = RtlUpperChar(*s);
1438
1439 for (hModule = hFirstModule; hModule ; hModule = pModule->next)
1440 {
1441 pModule = NE_GetPtr( hModule );
1442 if (!pModule) break;
1443 if (pModule->ne_flags & NE_FFLAGS_WIN32) continue;
1444
1445 name_table = (BYTE *)pModule + pModule->ne_restab;
1446 /* FIXME: the strncasecmp is WRONG. It should not be case insensitive,
1447 * but case sensitive! (Unfortunately Winword 6 and subdlls have
1448 * lowercased module names, but try to load uppercase DLLs, so this
1449 * 'i' compare is just a quickfix until the loader handles that
1450 * correctly. -MM 990705
1451 */
1452 if ((*name_table == len) && !NE_strncasecmp(tmpstr, (const char*)name_table+1, len))
1453 return hModule;
1454 }
1455
1456 /* If the base filename of 'name' matches the base filename of the module
1457 * filename of some module (case-insensitive compare):
1458 * Return its handle.
1459 */
1460
1461 /* basename: search backwards in passed name to \ / or : */
1462 s = tmpstr + strlen(tmpstr);
1463 while (s > tmpstr)
1464 {
1465 if (s[-1]=='/' || s[-1]=='\\' || s[-1]==':')
1466 break;
1467 s--;
1468 }
1469
1470 /* search this in loaded filename list */
1471 for (hModule = hFirstModule; hModule ; hModule = pModule->next)
1472 {
1473 char *loadedfn;
1474 OFSTRUCT *ofs;
1475
1476 pModule = NE_GetPtr( hModule );
1477 if (!pModule) break;
1478 if (!pModule->fileinfo) continue;
1479 if (pModule->ne_flags & NE_FFLAGS_WIN32) continue;
1480
1481 ofs = (OFSTRUCT*)((BYTE *)pModule + pModule->fileinfo);
1482 loadedfn = ((char*)ofs->szPathName) + strlen(ofs->szPathName);
1483 /* basename: search backwards in pathname to \ / or : */
1484 while (loadedfn > (char*)ofs->szPathName)
1485 {
1486 if (loadedfn[-1]=='/' || loadedfn[-1]=='\\' || loadedfn[-1]==':')
1487 break;
1488 loadedfn--;
1489 }
1490 /* case insensitive compare ... */
1491 if (!NE_strcasecmp(loadedfn, s))
1492 return hModule;
1493 }
1494 return 0;
1495 }
1496
1497
1498 /**********************************************************************
1499 * GetModuleName (KERNEL.27)
1500 */
1501 BOOL16 WINAPI GetModuleName16( HINSTANCE16 hinst, LPSTR buf, INT16 count )
1502 {
1503 NE_MODULE *pModule;
1504 BYTE *p;
1505
1506 if (!(pModule = NE_GetPtr( hinst ))) return FALSE;
1507 p = (BYTE *)pModule + pModule->ne_restab;
1508 if (count > *p) count = *p + 1;
1509 if (count > 0)
1510 {
1511 memcpy( buf, p + 1, count - 1 );
1512 buf[count-1] = '\0';
1513 }
1514 return TRUE;
1515 }
1516
1517
1518 /**********************************************************************
1519 * GetModuleFileName (KERNEL.49)
1520 *
1521 * See also: GetModuleFileNameA
1522 *
1523 * This function returns short paths when the modules version field is < 4.0).
1524 *
1525 * Even if invoked by second instance of a program,
1526 * it still returns path of first one.
1527 */
1528 INT16 WINAPI GetModuleFileName16( HINSTANCE16 hModule, LPSTR lpFileName,
1529 INT16 nSize )
1530 {
1531 NE_MODULE *pModule;
1532
1533 /* Win95 does not query hModule if set to 0 !
1534 * Is this wrong or maybe Win3.1 only ? */
1535 if (!hModule) hModule = GetCurrentTask();
1536
1537 if (!(pModule = NE_GetPtr( hModule ))) return 0;
1538 lstrcpynA( lpFileName, NE_MODULE_NAME(pModule), nSize );
1539 if (pModule->ne_expver < 0x400)
1540 GetShortPathNameA(NE_MODULE_NAME(pModule), lpFileName, nSize);
1541 TRACE("%04x -> '%s'\n", hModule, lpFileName );
1542 return strlen(lpFileName);
1543 }
1544
1545
1546 /**********************************************************************
1547 * GetModuleUsage (KERNEL.48)
1548 */
1549 INT16 WINAPI GetModuleUsage16( HINSTANCE16 hModule )
1550 {
1551 NE_MODULE *pModule = NE_GetPtr( hModule );
1552 return pModule ? pModule->count : 0;
1553 }
1554
1555
1556 /**********************************************************************
1557 * GetExpWinVer (KERNEL.167)
1558 */
1559 WORD WINAPI GetExpWinVer16( HMODULE16 hModule )
1560 {
1561 NE_MODULE *pModule = NE_GetPtr( hModule );
1562 if ( !pModule ) return 0;
1563 return pModule->ne_expver;
1564 }
1565
1566
1567 /***********************************************************************
1568 * WinExec (KERNEL.166)
1569 */
1570 HINSTANCE16 WINAPI WinExec16( LPCSTR lpCmdLine, UINT16 nCmdShow )
1571 {
1572 LPCSTR p, args = NULL;
1573 LPCSTR name_beg, name_end;
1574 LPSTR name, cmdline;
1575 int arglen;
1576 HINSTANCE16 ret;
1577 char buffer[MAX_PATH];
1578 LOADPARAMS16 params;
1579 WORD showCmd[2];
1580
1581 if (*lpCmdLine == '"') /* has to be only one and only at beginning ! */
1582 {
1583 name_beg = lpCmdLine+1;
1584 p = strchr ( lpCmdLine+1, '"' );
1585 if (p)
1586 {
1587 name_end = p;
1588 args = strchr ( p, ' ' );
1589 }
1590 else /* yes, even valid with trailing '"' missing */
1591 name_end = lpCmdLine+strlen(lpCmdLine);
1592 }
1593 else
1594 {
1595 name_beg = lpCmdLine;
1596 args = strchr( lpCmdLine, ' ' );
1597 name_end = args ? args : lpCmdLine+strlen(lpCmdLine);
1598 }
1599
1600 if ((name_beg == lpCmdLine) && (!args))
1601 { /* just use the original cmdline string as file name */
1602 name = (LPSTR)lpCmdLine;
1603 }
1604 else
1605 {
1606 if (!(name = HeapAlloc( GetProcessHeap(), 0, name_end - name_beg + 1 )))
1607 return ERROR_NOT_ENOUGH_MEMORY;
1608 memcpy( name, name_beg, name_end - name_beg );
1609 name[name_end - name_beg] = '\0';
1610 }
1611
1612 if (args)
1613 {
1614 args++;
1615 arglen = strlen(args);
1616 cmdline = HeapAlloc( GetProcessHeap(), 0, 2 + arglen );
1617 cmdline[0] = (BYTE)arglen;
1618 strcpy( cmdline + 1, args );
1619 }
1620 else
1621 {
1622 cmdline = HeapAlloc( GetProcessHeap(), 0, 2 );
1623 cmdline[0] = cmdline[1] = 0;
1624 }
1625
1626 TRACE("name: '%s', cmdline: '%.*s'\n", name, cmdline[0], &cmdline[1]);
1627
1628 showCmd[0] = 2;
1629 showCmd[1] = nCmdShow;
1630
1631 params.hEnvironment = 0;
1632 params.cmdLine = MapLS( cmdline );
1633 params.showCmd = MapLS( showCmd );
1634 params.reserved = 0;
1635
1636 if (SearchPathA( NULL, name, ".exe", sizeof(buffer), buffer, NULL ))
1637 {
1638 ret = LoadModule16( buffer, &params );
1639 }
1640 else if (!contains_path( name )) /* try 16-bit builtin */
1641 {
1642 lstrcpynA( buffer, name, sizeof(buffer) );
1643 if (strlen( buffer ) < sizeof(buffer) - 4 && !strchr( buffer, '.' )) strcat( buffer, ".exe" );
1644 ret = LoadModule16( buffer, &params );
1645 if (ret == ERROR_FILE_NOT_FOUND) ret = 21; /* it might be a 32-bit builtin too */
1646 }
1647 else ret = ERROR_FILE_NOT_FOUND;
1648
1649 UnMapLS( params.cmdLine );
1650 UnMapLS( params.showCmd );
1651
1652 HeapFree( GetProcessHeap(), 0, cmdline );
1653 if (name != lpCmdLine) HeapFree( GetProcessHeap(), 0, name );
1654
1655 if (ret == 21 || ret == ERROR_BAD_FORMAT) /* 32-bit module or unknown executable*/
1656 {
1657 LOADPARAMS16 params;
1658 WORD showCmd[2];
1659 showCmd[0] = 2;
1660 showCmd[1] = nCmdShow;
1661
1662 arglen = strlen( lpCmdLine );
1663 cmdline = HeapAlloc( GetProcessHeap(), 0, arglen + 1 );
1664 cmdline[0] = (BYTE)arglen;
1665 memcpy( cmdline + 1, lpCmdLine, arglen );
1666
1667 params.hEnvironment = 0;
1668 params.cmdLine = MapLS( cmdline );
1669 params.showCmd = MapLS( showCmd );
1670 params.reserved = 0;
1671
1672 ret = LoadModule16( "winoldap.mod", &params );
1673 UnMapLS( params.cmdLine );
1674 UnMapLS( params.showCmd );
1675 }
1676 return ret;
1677 }
1678
1679 /***********************************************************************
1680 * GetProcAddress (KERNEL.50)
1681 */
1682 FARPROC16 WINAPI GetProcAddress16( HMODULE16 hModule, LPCSTR name )
1683 {
1684 WORD ordinal;
1685 FARPROC16 ret;
1686
1687 if (!hModule) hModule = GetCurrentTask();
1688 hModule = GetExePtr( hModule );
1689
1690 if (HIWORD(name) != 0)
1691 {
1692 ordinal = NE_GetOrdinal( hModule, name );
1693 TRACE("%04x '%s'\n", hModule, name );
1694 }
1695 else
1696 {
1697 ordinal = LOWORD(name);
1698 TRACE("%04x %04x\n", hModule, ordinal );
1699 }
1700 if (!ordinal) return NULL;
1701
1702 ret = NE_GetEntryPoint( hModule, ordinal );
1703
1704 TRACE("returning %p\n", ret );
1705 return ret;
1706 }
1707
1708
1709 /***************************************************************************
1710 * HasGPHandler (KERNEL.338)
1711 */
1712 SEGPTR WINAPI HasGPHandler16( SEGPTR address )
1713 {
1714 HMODULE16 hModule;
1715 int gpOrdinal;
1716 SEGPTR gpPtr;
1717 GPHANDLERDEF *gpHandler;
1718
1719 if ( (hModule = FarGetOwner16( SELECTOROF(address) )) != 0
1720 && (gpOrdinal = NE_GetOrdinal( hModule, "__GP" )) != 0
1721 && (gpPtr = (SEGPTR)NE_GetEntryPointEx( hModule, gpOrdinal, FALSE )) != 0
1722 && !IsBadReadPtr16( gpPtr, sizeof(GPHANDLERDEF) )
1723 && (gpHandler = MapSL( gpPtr )) != NULL )
1724 {
1725 while (gpHandler->selector)
1726 {
1727 if ( SELECTOROF(address) == gpHandler->selector
1728 && OFFSETOF(address) >= gpHandler->rangeStart
1729 && OFFSETOF(address) < gpHandler->rangeEnd )
1730 return MAKESEGPTR( gpHandler->selector, gpHandler->handler );
1731 gpHandler++;
1732 }
1733 }
1734
1735 return 0;
1736 }
1737
1738
1739 /**********************************************************************
1740 * GetModuleHandle (KERNEL.47)
1741 *
1742 * Find a module from a module name.
1743 *
1744 * NOTE: The current implementation works the same way the Windows 95 one
1745 * does. Do not try to 'fix' it, fix the callers.
1746 * + It does not do ANY extension handling (except that strange .EXE bit)!
1747 * + It does not care about paths, just about basenames. (same as Windows)
1748 *
1749 * RETURNS
1750 * LOWORD:
1751 * the win16 module handle if found
1752 * 0 if not
1753 * HIWORD (undocumented, see "Undocumented Windows", chapter 5):
1754 * Always hFirstModule
1755 */
1756 DWORD WINAPI WIN16_GetModuleHandle( SEGPTR name )
1757 {
1758 if (HIWORD(name) == 0)
1759 return MAKELONG(GetExePtr( (HINSTANCE16)name), hFirstModule );
1760 return MAKELONG(GetModuleHandle16( MapSL(name)), hFirstModule );
1761 }
1762
1763 /**********************************************************************
1764 * NE_GetModuleByFilename
1765 */
1766 static HMODULE16 NE_GetModuleByFilename( LPCSTR name )
1767 {
1768 HMODULE16 hModule;
1769 LPSTR s, p;
1770 BYTE len, *name_table;
1771 char tmpstr[MAX_PATH];
1772 NE_MODULE *pModule;
1773
1774 lstrcpynA(tmpstr, name, sizeof(tmpstr));
1775
1776 /* If the base filename of 'name' matches the base filename of the module
1777 * filename of some module (case-insensitive compare):
1778 * Return its handle.
1779 */
1780
1781 /* basename: search backwards in passed name to \ / or : */
1782 s = tmpstr + strlen(tmpstr);
1783 while (s > tmpstr)
1784 {
1785 if (s[-1]=='/' || s[-1]=='\\' || s[-1]==':')
1786 break;
1787 s--;
1788 }
1789
1790 /* search this in loaded filename list */
1791 for (hModule = hFirstModule; hModule ; hModule = pModule->next)
1792 {
1793 char *loadedfn;
1794 OFSTRUCT *ofs;
1795
1796 pModule = NE_GetPtr( hModule );
1797 if (!pModule) break;
1798 if (!pModule->fileinfo) continue;
1799 if (pModule->ne_flags & NE_FFLAGS_WIN32) continue;
1800
1801 ofs = (OFSTRUCT*)((BYTE *)pModule + pModule->fileinfo);
1802 loadedfn = ((char*)ofs->szPathName) + strlen(ofs->szPathName);
1803 /* basename: search backwards in pathname to \ / or : */
1804 while (loadedfn > (char*)ofs->szPathName)
1805 {
1806 if (loadedfn[-1]=='/' || loadedfn[-1]=='\\' || loadedfn[-1]==':')
1807 break;
1808 loadedfn--;
1809 }
1810 /* case insensitive compare ... */
1811 if (!NE_strcasecmp(loadedfn, s))
1812 return hModule;
1813 }
1814 /* If basename (without ext) matches the module name of a module:
1815 * Return its handle.
1816 */
1817
1818 if ( (p = strrchr( s, '.' )) != NULL ) *p = '\0';
1819 len = strlen(s);
1820
1821 for (hModule = hFirstModule; hModule ; hModule = pModule->next)
1822 {
1823 pModule = NE_GetPtr( hModule );
1824 if (!pModule) break;
1825 if (pModule->ne_flags & NE_FFLAGS_WIN32) continue;
1826
1827 name_table = (BYTE *)pModule + pModule->ne_restab;
1828 if ((*name_table == len) && !NE_strncasecmp(s, (const char*)name_table+1, len))
1829 return hModule;
1830 }
1831
1832 return 0;
1833 }
1834
1835 /***********************************************************************
1836 * GetProcAddress16 (KERNEL32.37)
1837 * Get procaddress in 16bit module from win32... (kernel32 undoc. ordinal func)
1838 */
1839 FARPROC16 WINAPI WIN32_GetProcAddress16( HMODULE hModule, LPCSTR name )
1840 {
1841 if (!hModule) return 0;
1842 if (HIWORD(hModule))
1843 {
1844 WARN("hModule is Win32 handle (%p)\n", hModule );
1845 return 0;
1846 }
1847 return GetProcAddress16( LOWORD(hModule), name );
1848 }
1849
1850 /***************************************************************************
1851 * IsRomModule (KERNEL.323)
1852 */
1853 BOOL16 WINAPI IsRomModule16( HMODULE16 unused )
1854 {
1855 return FALSE;
1856 }
1857
1858 /***************************************************************************
1859 * IsRomFile (KERNEL.326)
1860 */
1861 BOOL16 WINAPI IsRomFile16( HFILE16 unused )
1862 {
1863 return FALSE;
1864 }
1865
1866 /***********************************************************************
1867 * create_dummy_module
1868 *
1869 * Create a dummy NE module for Win32 or Winelib.
1870 */
1871 static HMODULE16 create_dummy_module( HMODULE module32 )
1872 {
1873 HMODULE16 hModule;
1874 NE_MODULE *pModule;
1875 SEGTABLEENTRY *pSegment;
1876 char *pStr;
1877 unsigned int len;
1878 const char *basename, *s;
1879 OFSTRUCT *ofs;
1880 int of_size, size;
1881 char filename[MAX_PATH];
1882 IMAGE_NT_HEADERS *nt = RtlImageNtHeader( module32 );
1883
1884 if (!nt) return ERROR_BAD_FORMAT;
1885
1886 /* Extract base filename */
1887 len = GetModuleFileNameA( module32, filename, sizeof(filename) );
1888 if (!len || len >= sizeof(filename)) return ERROR_BAD_FORMAT;
1889 basename = strrchr(filename, '\\');
1890 if (!basename) basename = filename;
1891 else basename++;
1892 len = strlen(basename);
1893 if ((s = strchr(basename, '.'))) len = s - basename;
1894
1895 /* Allocate module */
1896 of_size = sizeof(OFSTRUCT) - sizeof(ofs->szPathName)
1897 + strlen(filename) + 1;
1898 size = sizeof(NE_MODULE) +
1899 /* loaded file info */
1900 ((of_size + 3) & ~3) +
1901 /* segment table: DS,CS */
1902 2 * sizeof(SEGTABLEENTRY) +
1903 /* name table */
1904 len + 2 +
1905 /* several empty tables */
1906 8;
1907
1908 hModule = GlobalAlloc16( GMEM_MOVEABLE | GMEM_ZEROINIT, size );
1909 if (!hModule) return ERROR_BAD_FORMAT;
1910
1911 FarSetOwner16( hModule, hModule );
1912 pModule = GlobalLock16( hModule );
1913
1914 /* Set all used entries */
1915 pModule->ne_magic = IMAGE_OS2_SIGNATURE;
1916 pModule->count = 1;
1917 pModule->next = 0;
1918 pModule->ne_flags = NE_FFLAGS_WIN32;
1919 pModule->ne_autodata = 0;
1920 pModule->ne_sssp = MAKESEGPTR( 0, 1 );
1921 pModule->ne_csip = MAKESEGPTR( 0, 2 );
1922 pModule->ne_heap = 0;
1923 pModule->ne_stack = 0;
1924 pModule->ne_cseg = 2;
1925 pModule->ne_cmod = 0;
1926 pModule->ne_cbnrestab = 0;
1927 pModule->fileinfo = sizeof(NE_MODULE);
1928 pModule->ne_exetyp = NE_OSFLAGS_WINDOWS;
1929 pModule->self = hModule;
1930 pModule->module32 = module32;
1931
1932 /* Set version and flags */
1933 pModule->ne_expver = ((nt->OptionalHeader.MajorSubsystemVersion & 0xff) << 8 ) |
1934 (nt->OptionalHeader.MinorSubsystemVersion & 0xff);
1935 if (nt->FileHeader.Characteristics & IMAGE_FILE_DLL)
1936 pModule->ne_flags |= NE_FFLAGS_LIBMODULE | NE_FFLAGS_SINGLEDATA;
1937
1938 /* Set loaded file information */
1939 ofs = (OFSTRUCT *)(pModule + 1);
1940 memset( ofs, 0, of_size );
1941 ofs->cBytes = of_size < 256 ? of_size : 255; /* FIXME */
1942 strcpy( ofs->szPathName, filename );
1943
1944 pSegment = (SEGTABLEENTRY*)((char*)(pModule + 1) + ((of_size + 3) & ~3));
1945 pModule->ne_segtab = (char *)pSegment - (char *)pModule;
1946 /* Data segment */
1947 pSegment->size = 0;
1948 pSegment->flags = NE_SEGFLAGS_DATA;
1949 pSegment->minsize = 0x1000;
1950 pSegment++;
1951 /* Code segment */
1952 pSegment->flags = 0;
1953 pSegment++;
1954
1955 /* Module name */
1956 pStr = (char *)pSegment;
1957 pModule->ne_restab = pStr - (char *)pModule;
1958 assert(len<256);
1959 *pStr = len;
1960 lstrcpynA( pStr+1, basename, len+1 );
1961 pStr += len+2;
1962
1963 /* All tables zero terminated */
1964 pModule->ne_rsrctab = pModule->ne_imptab = pModule->ne_enttab = pStr - (char *)pModule;
1965
1966 NE_RegisterModule( pModule );
1967 pModule->owner32 = LoadLibraryA( filename ); /* increment the ref count of the 32-bit module */
1968 return hModule;
1969 }
1970
1971 /***********************************************************************
1972 * PrivateLoadLibrary (KERNEL32.@)
1973 *
1974 * FIXME: rough guesswork, don't know what "Private" means
1975 */
1976 HINSTANCE16 WINAPI PrivateLoadLibrary(LPCSTR libname)
1977 {
1978 return LoadLibrary16(libname);
1979 }
1980
1981 /***********************************************************************
1982 * PrivateFreeLibrary (KERNEL32.@)
1983 *
1984 * FIXME: rough guesswork, don't know what "Private" means
1985 */
1986 void WINAPI PrivateFreeLibrary(HINSTANCE16 handle)
1987 {
1988 FreeLibrary16(handle);
1989 }
1990
1991 /***********************************************************************
1992 * LoadLibrary32 (KERNEL.452)
1993 * LoadSystemLibrary32 (KERNEL.482)
1994 */
1995 HMODULE WINAPI LoadLibrary32_16( LPCSTR libname )
1996 {
1997 HMODULE hModule;
1998 DWORD count;
1999
2000 ReleaseThunkLock( &count );
2001 hModule = LoadLibraryA( libname );
2002 RestoreThunkLock( count );
2003 return hModule;
2004 }
2005
2006 /***************************************************************************
2007 * MapHModuleLS (KERNEL32.@)
2008 */
2009 HMODULE16 WINAPI MapHModuleLS(HMODULE hmod)
2010 {
2011 HMODULE16 ret;
2012 NE_MODULE *pModule;
2013
2014 if (!hmod)
2015 return TASK_GetCurrent()->hInstance;
2016 if (!HIWORD(hmod))
2017 return LOWORD(hmod); /* we already have a 16 bit module handle */
2018 pModule = GlobalLock16(hFirstModule);
2019 while (pModule) {
2020 if (pModule->module32 == hmod)
2021 return pModule->self;
2022 pModule = GlobalLock16(pModule->next);
2023 }
2024 if ((ret = create_dummy_module( hmod )) < 32)
2025 {
2026 SetLastError(ret);
2027 ret = 0;
2028 }
2029 return ret;
2030 }
2031
2032 /***************************************************************************
2033 * MapHModuleSL (KERNEL32.@)
2034 */
2035 HMODULE WINAPI MapHModuleSL(HMODULE16 hmod)
2036 {
2037 NE_MODULE *pModule;
2038
2039 if (!hmod) {
2040 TDB *pTask = TASK_GetCurrent();
2041 hmod = pTask->hModule;
2042 }
2043 pModule = GlobalLock16(hmod);
2044 if ((pModule->ne_magic != IMAGE_OS2_SIGNATURE) || !(pModule->ne_flags & NE_FFLAGS_WIN32))
2045 return 0;
2046 return pModule->module32;
2047 }
2048
2049 /***************************************************************************
2050 * MapHInstLS (KERNEL.472)
2051 */
2052 void WINAPI MapHInstLS16( CONTEXT *context )
2053 {
2054 context->Eax = MapHModuleLS( (HMODULE)context->Eax );
2055 }
2056
2057 /***************************************************************************
2058 * MapHInstSL (KERNEL.473)
2059 */
2060 void WINAPI MapHInstSL16( CONTEXT *context )
2061 {
2062 context->Eax = (DWORD)MapHModuleSL( context->Eax );
2063 }
2064
2065 /***************************************************************************
2066 * MapHInstLS (KERNEL32.@)
2067 */
2068 __ASM_STDCALL_FUNC( MapHInstLS, 0,
2069 "pushl %eax\n\t"
2070 "call " __ASM_NAME("MapHModuleLS") __ASM_STDCALL(4) "\n\t"
2071 "ret" )
2072
2073 /***************************************************************************
2074 * MapHInstSL (KERNEL32.@)
2075 */
2076 __ASM_STDCALL_FUNC( MapHInstSL, 0,
2077 "pushl %eax\n\t"
2078 "call " __ASM_NAME("MapHModuleSL") __ASM_STDCALL(4) "\n\t"
2079 "ret" )
2080
2081 /***************************************************************************
2082 * MapHInstLS_PN (KERNEL32.@)
2083 */
2084 __ASM_STDCALL_FUNC( MapHInstLS_PN, 0,
2085 "testl %eax,%eax\n\t"
2086 "jz 1f\n\t"
2087 "pushl %eax\n\t"
2088 "call " __ASM_NAME("MapHModuleLS") __ASM_STDCALL(4) "\n"
2089 "1:\tret" )
2090
2091 /***************************************************************************
2092 * MapHInstSL_PN (KERNEL32.@)
2093 */
2094 __ASM_STDCALL_FUNC( MapHInstSL_PN, 0,
2095 "andl $0xffff,%eax\n\t"
2096 "jz 1f\n\t"
2097 "pushl %eax\n\t"
2098 "call " __ASM_NAME("MapHModuleSL") __ASM_STDCALL(4) "\n"
2099 "1:\tret" )
Maarten's multimedia branch