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Renamed some fields in NE_MODULE to use the same name as in the
[wine/dcerpc.git] / dlls / kernel / ne_module.c
blob6e0f52213ff3675b7354988eaf667ab837492939
1 /*
2 * NE modules
3 *
4 * Copyright 1995 Alexandre Julliard
5 *
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
10 *
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19 */
20
21 #include "config.h"
22 #include "wine/port.h"
23
24 #include <assert.h>
25 #include <fcntl.h>
26 #include <stdarg.h>
27 #include <stdio.h>
28 #include <stdlib.h>
29 #include <string.h>
30 #ifdef HAVE_UNISTD_H
31 # include <unistd.h>
32 #endif
33 #include <ctype.h>
34
35 #include "windef.h"
36 #include "wine/winbase16.h"
37 #include "wownt32.h"
38 #include "toolhelp.h"
39 #include "excpt.h"
40 #include "kernel_private.h"
41 #include "kernel16_private.h"
42 #include "wine/exception.h"
43 #include "wine/debug.h"
44
45 WINE_DEFAULT_DEBUG_CHANNEL(module);
46 WINE_DECLARE_DEBUG_CHANNEL(loaddll);
47
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 typedef struct
72 {
73 void *module_start; /* 32-bit address of the module data */
74 int module_size; /* Size of the module data */
75 void *code_start; /* 32-bit address of DLL code */
76 void *data_start; /* 32-bit address of DLL data */
77 const char *owner; /* 32-bit dll that contains this dll */
78 const void *rsrc; /* resources data */
79 } BUILTIN16_DESCRIPTOR;
80
81 /* Table of all built-in DLLs */
82
83 #define MAX_DLLS 50
84
85 static const BUILTIN16_DESCRIPTOR *builtin_dlls[MAX_DLLS];
86
87 extern void SNOOP16_RegisterDLL(NE_MODULE*,LPCSTR);
88 extern FARPROC16 SNOOP16_GetProcAddress16(HMODULE16,DWORD,FARPROC16);
89
90 static HINSTANCE16 NE_LoadModule( LPCSTR name, BOOL lib_only );
91 static BOOL16 NE_FreeModule( HMODULE16 hModule, BOOL call_wep );
92
93 static HINSTANCE16 MODULE_LoadModule16( LPCSTR libname, BOOL implicit, BOOL lib_only );
94
95 static HMODULE16 NE_GetModuleByFilename( LPCSTR name );
96
97
98 static WINE_EXCEPTION_FILTER(page_fault)
99 {
100 if (GetExceptionCode() == EXCEPTION_ACCESS_VIOLATION ||
101 GetExceptionCode() == EXCEPTION_PRIV_INSTRUCTION)
102 return EXCEPTION_EXECUTE_HANDLER;
103 return EXCEPTION_CONTINUE_SEARCH;
104 }
105
106
107 /* patch all the flat cs references of the code segment if necessary */
108 inline static void patch_code_segment( void *code_segment )
109 {
110 #ifdef __i386__
111 CALLFROM16 *call = code_segment;
112 if (call->flatcs == wine_get_cs()) return; /* nothing to patch */
113 while (call->pushl == 0x68)
114 {
115 call->flatcs = wine_get_cs();
116 call++;
117 }
118 #endif
119 }
120
121
122 /***********************************************************************
123 * NE_strcasecmp
124 *
125 * locale-independent case conversion for module lookups
126 */
127 static int NE_strcasecmp( const char *str1, const char *str2 )
128 {
129 int ret = 0;
130 for ( ; ; str1++, str2++)
131 if ((ret = RtlUpperChar(*str1) - RtlUpperChar(*str2)) || !*str1) break;
132 return ret;
133 }
134
135
136 /***********************************************************************
137 * NE_strncasecmp
138 *
139 * locale-independent case conversion for module lookups
140 */
141 static int NE_strncasecmp( const char *str1, const char *str2, int len )
142 {
143 int ret = 0;
144 for ( ; len > 0; len--, str1++, str2++)
145 if ((ret = RtlUpperChar(*str1) - RtlUpperChar(*str2)) || !*str1) break;
146 return ret;
147 }
148
149
150 /***********************************************************************
151 * find_dll_descr
152 *
153 * Find a descriptor in the list
154 */
155 static const BUILTIN16_DESCRIPTOR *find_dll_descr( const char *dllname )
156 {
157 int i;
158 for (i = 0; i < MAX_DLLS; i++)
159 {
160 const BUILTIN16_DESCRIPTOR *descr = builtin_dlls[i];
161 if (descr)
162 {
163 IMAGE_OS2_HEADER *pModule = descr->module_start;
164 OFSTRUCT *pOfs = (OFSTRUCT *)(pModule + 1);
165 BYTE *name_table = (BYTE *)pModule + pModule->ne_restab;
166
167 /* check the dll file name */
168 if (!NE_strcasecmp( pOfs->szPathName, dllname )) return descr;
169 /* check the dll module name (without extension) */
170 if (!NE_strncasecmp( dllname, name_table+1, *name_table ) &&
171 !strcmp( dllname + *name_table, ".dll" ))
172 return descr;
173 }
174 }
175 return NULL;
176 }
177
178
179 /***********************************************************************
180 * __wine_register_dll_16 (KERNEL32.@)
181 *
182 * Register a built-in DLL descriptor.
183 */
184 void __wine_register_dll_16( const BUILTIN16_DESCRIPTOR *descr )
185 {
186 int i;
187
188 for (i = 0; i < MAX_DLLS; i++)
189 {
190 if (builtin_dlls[i]) continue;
191 builtin_dlls[i] = descr;
192 break;
193 }
194 assert( i < MAX_DLLS );
195 }
196
197
198 /***********************************************************************
199 * __wine_unregister_dll_16 (KERNEL32.@)
200 *
201 * Unregister a built-in DLL descriptor.
202 */
203 void __wine_unregister_dll_16( const BUILTIN16_DESCRIPTOR *descr )
204 {
205 int i;
206
207 for (i = 0; i < MAX_DLLS; i++)
208 {
209 if (builtin_dlls[i] != descr) continue;
210 builtin_dlls[i] = NULL;
211 break;
212 }
213 }
214
215
216 /***********************************************************************
217 * NE_GetPtr
218 */
219 NE_MODULE *NE_GetPtr( HMODULE16 hModule )
220 {
221 return (NE_MODULE *)GlobalLock16( GetExePtr(hModule) );
222 }
223
224
225 /**********************************************************************
226 * NE_RegisterModule
227 */
228 static void NE_RegisterModule( NE_MODULE *pModule )
229 {
230 pModule->next = hFirstModule;
231 hFirstModule = pModule->self;
232 }
233
234
235 /***********************************************************************
236 * NE_DumpModule
237 */
238 void NE_DumpModule( HMODULE16 hModule )
239 {
240 int i, ordinal;
241 SEGTABLEENTRY *pSeg;
242 BYTE *pstr;
243 WORD *pword;
244 NE_MODULE *pModule;
245 ET_BUNDLE *bundle;
246 ET_ENTRY *entry;
247
248 if (!(pModule = NE_GetPtr( hModule )))
249 {
250 MESSAGE( "**** %04x is not a module handle\n", hModule );
251 return;
252 }
253
254 /* Dump the module info */
255 DPRINTF( "---\n" );
256 DPRINTF( "Module %04x:\n", hModule );
257 DPRINTF( "count=%d flags=%04x heap=%d stack=%d\n",
258 pModule->count, pModule->ne_flags,
259 pModule->ne_heap, pModule->ne_stack );
260 DPRINTF( "cs:ip=%04x:%04x ss:sp=%04x:%04x ds=%04x nb seg=%d modrefs=%d\n",
261 SELECTOROF(pModule->ne_csip), OFFSETOF(pModule->ne_csip),
262 SELECTOROF(pModule->ne_sssp), OFFSETOF(pModule->ne_sssp),
263 pModule->ne_autodata, pModule->ne_cseg, pModule->ne_cmod );
264 DPRINTF( "os_flags=%d swap_area=%d version=%04x\n",
265 pModule->ne_exetyp, pModule->ne_swaparea, pModule->ne_expver );
266 if (pModule->ne_flags & NE_FFLAGS_WIN32)
267 DPRINTF( "PE module=%p\n", pModule->module32 );
268
269 /* Dump the file info */
270 DPRINTF( "---\n" );
271 DPRINTF( "Filename: '%s'\n", NE_MODULE_NAME(pModule) );
272
273 /* Dump the segment table */
274 DPRINTF( "---\n" );
275 DPRINTF( "Segment table:\n" );
276 pSeg = NE_SEG_TABLE( pModule );
277 for (i = 0; i < pModule->ne_cseg; i++, pSeg++)
278 DPRINTF( "%02x: pos=%d size=%d flags=%04x minsize=%d hSeg=%04x\n",
279 i + 1, pSeg->filepos, pSeg->size, pSeg->flags,
280 pSeg->minsize, pSeg->hSeg );
281
282 /* Dump the resource table */
283 DPRINTF( "---\n" );
284 DPRINTF( "Resource table:\n" );
285 if (pModule->ne_rsrctab)
286 {
287 pword = (WORD *)((BYTE *)pModule + pModule->ne_rsrctab);
288 DPRINTF( "Alignment: %d\n", *pword++ );
289 while (*pword)
290 {
291 NE_TYPEINFO *ptr = (NE_TYPEINFO *)pword;
292 NE_NAMEINFO *pname = (NE_NAMEINFO *)(ptr + 1);
293 DPRINTF( "id=%04x count=%d\n", ptr->type_id, ptr->count );
294 for (i = 0; i < ptr->count; i++, pname++)
295 DPRINTF( "offset=%d len=%d id=%04x\n",
296 pname->offset, pname->length, pname->id );
297 pword = (WORD *)pname;
298 }
299 }
300 else DPRINTF( "None\n" );
301
302 /* Dump the resident name table */
303 DPRINTF( "---\n" );
304 DPRINTF( "Resident-name table:\n" );
305 pstr = (char *)pModule + pModule->ne_restab;
306 while (*pstr)
307 {
308 DPRINTF( "%*.*s: %d\n", *pstr, *pstr, pstr + 1,
309 *(WORD *)(pstr + *pstr + 1) );
310 pstr += *pstr + 1 + sizeof(WORD);
311 }
312
313 /* Dump the module reference table */
314 DPRINTF( "---\n" );
315 DPRINTF( "Module ref table:\n" );
316 if (pModule->ne_modtab)
317 {
318 pword = (WORD *)((BYTE *)pModule + pModule->ne_modtab);
319 for (i = 0; i < pModule->ne_cmod; i++, pword++)
320 {
321 char name[10];
322 GetModuleName16( *pword, name, sizeof(name) );
323 DPRINTF( "%d: %04x -> '%s'\n", i, *pword, name );
324 }
325 }
326 else DPRINTF( "None\n" );
327
328 /* Dump the entry table */
329 DPRINTF( "---\n" );
330 DPRINTF( "Entry table:\n" );
331 bundle = (ET_BUNDLE *)((BYTE *)pModule+pModule->ne_enttab);
332 do {
333 entry = (ET_ENTRY *)((BYTE *)bundle+6);
334 DPRINTF( "Bundle %d-%d: %02x\n", bundle->first, bundle->last, entry->type);
335 ordinal = bundle->first;
336 while (ordinal < bundle->last)
337 {
338 if (entry->type == 0xff)
339 DPRINTF("%d: %02x:%04x (moveable)\n", ordinal++, entry->segnum, entry->offs);
340 else
341 DPRINTF("%d: %02x:%04x (fixed)\n", ordinal++, entry->segnum, entry->offs);
342 entry++;
343 }
344 } while ( (bundle->next) && (bundle = ((ET_BUNDLE *)((BYTE *)pModule + bundle->next))) );
345
346 /* Dump the non-resident names table */
347 DPRINTF( "---\n" );
348 DPRINTF( "Non-resident names table:\n" );
349 if (pModule->nrname_handle)
350 {
351 pstr = (char *)GlobalLock16( pModule->nrname_handle );
352 while (*pstr)
353 {
354 DPRINTF( "%*.*s: %d\n", *pstr, *pstr, pstr + 1,
355 *(WORD *)(pstr + *pstr + 1) );
356 pstr += *pstr + 1 + sizeof(WORD);
357 }
358 }
359 DPRINTF( "\n" );
360 }
361
362
363 /***********************************************************************
364 * NE_WalkModules
365 *
366 * Walk the module list and print the modules.
367 */
368 void NE_WalkModules(void)
369 {
370 HMODULE16 hModule = hFirstModule;
371 MESSAGE( "Module Flags Name\n" );
372 while (hModule)
373 {
374 NE_MODULE *pModule = NE_GetPtr( hModule );
375 if (!pModule)
376 {
377 MESSAGE( "Bad module %04x in list\n", hModule );
378 return;
379 }
380 MESSAGE( " %04x %04x %.*s\n", hModule, pModule->ne_flags,
381 *((char *)pModule + pModule->ne_restab),
382 (char *)pModule + pModule->ne_restab + 1 );
383 hModule = pModule->next;
384 }
385 }
386
387
388 /***********************************************************************
389 * NE_InitResourceHandler
390 *
391 * Fill in 'resloader' fields in the resource table.
392 */
393 static void NE_InitResourceHandler( NE_MODULE *pModule )
394 {
395 static FARPROC16 proc;
396
397 NE_TYPEINFO *pTypeInfo = (NE_TYPEINFO *)((char *)pModule + pModule->ne_rsrctab + 2);
398
399 TRACE("InitResourceHandler[%04x]\n", pModule->self );
400
401 if (!proc) proc = GetProcAddress16( GetModuleHandle16("KERNEL"), "DefResourceHandler" );
402
403 while(pTypeInfo->type_id)
404 {
405 memcpy_unaligned( &pTypeInfo->resloader, &proc, sizeof(FARPROC16) );
406 pTypeInfo = (NE_TYPEINFO *)((char*)(pTypeInfo + 1) + pTypeInfo->count * sizeof(NE_NAMEINFO));
407 }
408 }
409
410
411 /***********************************************************************
412 * NE_GetOrdinal
413 *
414 * Lookup the ordinal for a given name.
415 */
416 WORD NE_GetOrdinal( HMODULE16 hModule, const char *name )
417 {
418 unsigned char buffer[256], *cpnt;
419 BYTE len;
420 NE_MODULE *pModule;
421
422 if (!(pModule = NE_GetPtr( hModule ))) return 0;
423 if (pModule->ne_flags & NE_FFLAGS_WIN32) return 0;
424
425 TRACE("(%04x,'%s')\n", hModule, name );
426
427 /* First handle names of the form '#xxxx' */
428
429 if (name[0] == '#') return atoi( name + 1 );
430
431 /* Now copy and uppercase the string */
432
433 strcpy( buffer, name );
434 for (cpnt = buffer; *cpnt; cpnt++) *cpnt = RtlUpperChar(*cpnt);
435 len = cpnt - buffer;
436
437 /* First search the resident names */
438
439 cpnt = (char *)pModule + pModule->ne_restab;
440
441 /* Skip the first entry (module name) */
442 cpnt += *cpnt + 1 + sizeof(WORD);
443 while (*cpnt)
444 {
445 if (((BYTE)*cpnt == len) && !memcmp( cpnt+1, buffer, len ))
446 {
447 WORD ordinal;
448 memcpy( &ordinal, cpnt + *cpnt + 1, sizeof(ordinal) );
449 TRACE(" Found: ordinal=%d\n", ordinal );
450 return ordinal;
451 }
452 cpnt += *cpnt + 1 + sizeof(WORD);
453 }
454
455 /* Now search the non-resident names table */
456
457 if (!pModule->nrname_handle) return 0; /* No non-resident table */
458 cpnt = (char *)GlobalLock16( pModule->nrname_handle );
459
460 /* Skip the first entry (module description string) */
461 cpnt += *cpnt + 1 + sizeof(WORD);
462 while (*cpnt)
463 {
464 if (((BYTE)*cpnt == len) && !memcmp( cpnt+1, buffer, len ))
465 {
466 WORD ordinal;
467 memcpy( &ordinal, cpnt + *cpnt + 1, sizeof(ordinal) );
468 TRACE(" Found: ordinal=%d\n", ordinal );
469 return ordinal;
470 }
471 cpnt += *cpnt + 1 + sizeof(WORD);
472 }
473 return 0;
474 }
475
476
477 /***********************************************************************
478 * NE_GetEntryPoint
479 */
480 FARPROC16 WINAPI NE_GetEntryPoint( HMODULE16 hModule, WORD ordinal )
481 {
482 return NE_GetEntryPointEx( hModule, ordinal, TRUE );
483 }
484
485 /***********************************************************************
486 * NE_GetEntryPointEx
487 */
488 FARPROC16 NE_GetEntryPointEx( HMODULE16 hModule, WORD ordinal, BOOL16 snoop )
489 {
490 NE_MODULE *pModule;
491 WORD sel, offset, i;
492
493 ET_ENTRY *entry;
494 ET_BUNDLE *bundle;
495
496 if (!(pModule = NE_GetPtr( hModule ))) return 0;
497 assert( !(pModule->ne_flags & NE_FFLAGS_WIN32) );
498
499 bundle = (ET_BUNDLE *)((BYTE *)pModule + pModule->ne_enttab);
500 while ((ordinal < bundle->first + 1) || (ordinal > bundle->last))
501 {
502 if (!(bundle->next))
503 return 0;
504 bundle = (ET_BUNDLE *)((BYTE *)pModule + bundle->next);
505 }
506
507 entry = (ET_ENTRY *)((BYTE *)bundle+6);
508 for (i=0; i < (ordinal - bundle->first - 1); i++)
509 entry++;
510
511 sel = entry->segnum;
512 memcpy( &offset, &entry->offs, sizeof(WORD) );
513
514 if (sel == 0xfe) sel = 0xffff; /* constant entry */
515 else sel = GlobalHandleToSel16(NE_SEG_TABLE(pModule)[sel-1].hSeg);
516 if (sel==0xffff)
517 return (FARPROC16)MAKESEGPTR( sel, offset );
518 if (!snoop)
519 return (FARPROC16)MAKESEGPTR( sel, offset );
520 else
521 return (FARPROC16)SNOOP16_GetProcAddress16(hModule,ordinal,(FARPROC16)MAKESEGPTR( sel, offset ));
522 }
523
524
525 /***********************************************************************
526 * EntryAddrProc (KERNEL.667) Wine-specific export
527 *
528 * Return the entry point for a given ordinal.
529 */
530 FARPROC16 WINAPI EntryAddrProc16( HMODULE16 hModule, WORD ordinal )
531 {
532 FARPROC16 ret = NE_GetEntryPointEx( hModule, ordinal, TRUE );
533 CURRENT_STACK16->ecx = hModule; /* FIXME: might be incorrect value */
534 return ret;
535 }
536
537 /***********************************************************************
538 * NE_SetEntryPoint
539 *
540 * Change the value of an entry point. Use with caution!
541 * It can only change the offset value, not the selector.
542 */
543 BOOL16 NE_SetEntryPoint( HMODULE16 hModule, WORD ordinal, WORD offset )
544 {
545 NE_MODULE *pModule;
546 ET_ENTRY *entry;
547 ET_BUNDLE *bundle;
548 int i;
549
550 if (!(pModule = NE_GetPtr( hModule ))) return FALSE;
551 assert( !(pModule->ne_flags & NE_FFLAGS_WIN32) );
552
553 bundle = (ET_BUNDLE *)((BYTE *)pModule + pModule->ne_enttab);
554 while ((ordinal < bundle->first + 1) || (ordinal > bundle->last))
555 {
556 bundle = (ET_BUNDLE *)((BYTE *)pModule + bundle->next);
557 if (!(bundle->next)) return 0;
558 }
559
560 entry = (ET_ENTRY *)((BYTE *)bundle+6);
561 for (i=0; i < (ordinal - bundle->first - 1); i++)
562 entry++;
563
564 memcpy( &entry->offs, &offset, sizeof(WORD) );
565 return TRUE;
566 }
567
568
569 /***********************************************************************
570 * NE_OpenFile
571 */
572 HANDLE NE_OpenFile( NE_MODULE *pModule )
573 {
574 HANDLE handle;
575 char *name = NE_MODULE_NAME( pModule );
576
577 TRACE("(%p)\n", pModule );
578
579 if (pModule->fd)
580 {
581 if (!DuplicateHandle( GetCurrentProcess(), pModule->fd,
582 GetCurrentProcess(), &handle, 0, FALSE,
583 DUPLICATE_SAME_ACCESS )) handle = INVALID_HANDLE_VALUE;
584 }
585 else
586 {
587 handle = CreateFileA( name, GENERIC_READ, FILE_SHARE_READ,
588 NULL, OPEN_EXISTING, 0, 0 );
589 }
590 if (handle == INVALID_HANDLE_VALUE)
591 ERR( "Can't open file '%s' for module %04x\n", name, pModule->self );
592
593 TRACE("opened '%s' -> %p\n", name, handle);
594 return handle;
595 }
596
597
598 /* wrapper for SetFilePointer and ReadFile */
599 static BOOL read_data( HANDLE handle, LONG offset, void *buffer, DWORD size )
600 {
601 DWORD result;
602
603 if (SetFilePointer( handle, offset, NULL, SEEK_SET ) == INVALID_SET_FILE_POINTER) return FALSE;
604 if (!ReadFile( handle, buffer, size, &result, NULL )) return FALSE;
605 return (result == size);
606 }
607
608 /***********************************************************************
609 * NE_LoadExeHeader
610 */
611 static HMODULE16 NE_LoadExeHeader( HANDLE handle, LPCSTR path )
612 {
613 IMAGE_DOS_HEADER mz_header;
614 IMAGE_OS2_HEADER ne_header;
615 int size;
616 HMODULE16 hModule;
617 NE_MODULE *pModule;
618 BYTE *pData, *pTempEntryTable;
619 char *buffer, *fastload = NULL;
620 unsigned int fastload_offset = 0, fastload_length = 0;
621 ET_ENTRY *entry;
622 ET_BUNDLE *bundle, *oldbundle;
623 OFSTRUCT *ofs;
624
625 /* Read a block from either the file or the fast-load area. */
626 #define READ(offset,size,buffer) \
627 ((fastload && ((offset) >= fastload_offset) && \
628 ((offset)+(size) <= fastload_offset+fastload_length)) ? \
629 (memcpy( buffer, fastload+(offset)-fastload_offset, (size) ), TRUE) : \
630 read_data( handle, (offset), (buffer), (size)))
631
632 if (!read_data( handle, 0, &mz_header, sizeof(mz_header)) ||
633 (mz_header.e_magic != IMAGE_DOS_SIGNATURE))
634 return ERROR_BAD_FORMAT;
635
636 if (!read_data( handle, mz_header.e_lfanew, &ne_header, sizeof(ne_header) ))
637 return ERROR_BAD_FORMAT;
638
639 if (ne_header.ne_magic == IMAGE_NT_SIGNATURE) return (HMODULE16)21; /* win32 exe */
640 if (ne_header.ne_magic == IMAGE_OS2_SIGNATURE_LX) {
641 MESSAGE("Sorry, this is an OS/2 linear executable (LX) file!\n");
642 return (HMODULE16)12;
643 }
644 if (ne_header.ne_magic != IMAGE_OS2_SIGNATURE) return ERROR_BAD_FORMAT;
645
646 /* We now have a valid NE header */
647
648 /* check to be able to fall back to loading OS/2 programs as DOS
649 * FIXME: should this check be reversed in order to be less strict?
650 * (only fail for OS/2 ne_exetyp 0x01 here?) */
651 if ((ne_header.ne_exetyp != 0x02 /* Windows */)
652 && (ne_header.ne_exetyp != 0x04) /* Windows 386 */)
653 return ERROR_BAD_FORMAT;
654
655 size = sizeof(NE_MODULE) +
656 /* segment table */
657 ne_header.ne_cseg * sizeof(SEGTABLEENTRY) +
658 /* resource table */
659 ne_header.ne_restab - ne_header.ne_rsrctab +
660 /* resident names table */
661 ne_header.ne_modtab - ne_header.ne_restab +
662 /* module ref table */
663 ne_header.ne_cmod * sizeof(WORD) +
664 /* imported names table */
665 ne_header.ne_enttab - ne_header.ne_imptab +
666 /* entry table length */
667 ne_header.ne_cbenttab +
668 /* entry table extra conversion space */
669 sizeof(ET_BUNDLE) +
670 2 * (ne_header.ne_cbenttab - ne_header.ne_cmovent*6) +
671 /* loaded file info */
672 sizeof(OFSTRUCT) - sizeof(ofs->szPathName) + strlen(path) + 1;
673
674 hModule = GlobalAlloc16( GMEM_FIXED | GMEM_ZEROINIT, size );
675 if (!hModule) return ERROR_BAD_FORMAT;
676
677 FarSetOwner16( hModule, hModule );
678 pModule = (NE_MODULE *)GlobalLock16( hModule );
679 memcpy( pModule, &ne_header, sizeof(ne_header) );
680 pModule->count = 0;
681 /* check *programs* for default minimal stack size */
682 if ( (!(pModule->ne_flags & NE_FFLAGS_LIBMODULE))
683 && (pModule->ne_stack < 0x1400) )
684 pModule->ne_stack = 0x1400;
685 pModule->module32 = 0;
686 pModule->self = hModule;
687 pModule->self_loading_sel = 0;
688 pData = (BYTE *)(pModule + 1);
689
690 /* Clear internal Wine flags in case they are set in the EXE file */
691
692 pModule->ne_flags &= ~(NE_FFLAGS_BUILTIN | NE_FFLAGS_WIN32);
693
694 /* Read the fast-load area */
695
696 if (ne_header.ne_flagsothers & NE_AFLAGS_FASTLOAD)
697 {
698 fastload_offset=ne_header.ne_pretthunks << ne_header.ne_align;
699 fastload_length=ne_header.ne_psegrefbytes << ne_header.ne_align;
700 TRACE("Using fast-load area offset=%x len=%d\n",
701 fastload_offset, fastload_length );
702 if ((fastload = HeapAlloc( GetProcessHeap(), 0, fastload_length )) != NULL)
703 {
704 if (!read_data( handle, fastload_offset, fastload, fastload_length))
705 {
706 HeapFree( GetProcessHeap(), 0, fastload );
707 WARN("Error reading fast-load area!\n");
708 fastload = NULL;
709 }
710 }
711 }
712
713 /* Get the segment table */
714
715 pModule->ne_segtab = pData - (BYTE *)pModule;
716 buffer = HeapAlloc( GetProcessHeap(), 0, ne_header.ne_cseg *
717 sizeof(struct ne_segment_table_entry_s));
718 if (buffer)
719 {
720 int i;
721 struct ne_segment_table_entry_s *pSeg;
722
723 if (!READ( mz_header.e_lfanew + ne_header.ne_segtab,
724 ne_header.ne_cseg * sizeof(struct ne_segment_table_entry_s),
725 buffer ))
726 {
727 HeapFree( GetProcessHeap(), 0, buffer );
728 HeapFree( GetProcessHeap(), 0, fastload );
729 GlobalFree16( hModule );
730 return ERROR_BAD_FORMAT;
731 }
732 pSeg = (struct ne_segment_table_entry_s *)buffer;
733 for (i = ne_header.ne_cseg; i > 0; i--, pSeg++)
734 {
735 memcpy( pData, pSeg, sizeof(*pSeg) );
736 pData += sizeof(SEGTABLEENTRY);
737 }
738 HeapFree( GetProcessHeap(), 0, buffer );
739 }
740 else
741 {
742 HeapFree( GetProcessHeap(), 0, fastload );
743 GlobalFree16( hModule );
744 return ERROR_BAD_FORMAT;
745 }
746
747 /* Get the resource table */
748
749 if (ne_header.ne_rsrctab < ne_header.ne_restab)
750 {
751 pModule->ne_rsrctab = pData - (BYTE *)pModule;
752 if (!READ(mz_header.e_lfanew + ne_header.ne_rsrctab,
753 ne_header.ne_restab - ne_header.ne_rsrctab,
754 pData ))
755 return ERROR_BAD_FORMAT;
756 pData += ne_header.ne_restab - ne_header.ne_rsrctab;
757 NE_InitResourceHandler( pModule );
758 }
759 else pModule->ne_rsrctab = 0; /* No resource table */
760
761 /* Get the resident names table */
762
763 pModule->ne_restab = pData - (BYTE *)pModule;
764 if (!READ( mz_header.e_lfanew + ne_header.ne_restab,
765 ne_header.ne_modtab - ne_header.ne_restab,
766 pData ))
767 {
768 HeapFree( GetProcessHeap(), 0, fastload );
769 GlobalFree16( hModule );
770 return ERROR_BAD_FORMAT;
771 }
772 pData += ne_header.ne_modtab - ne_header.ne_restab;
773
774 /* Get the module references table */
775
776 if (ne_header.ne_cmod > 0)
777 {
778 pModule->ne_modtab = pData - (BYTE *)pModule;
779 if (!READ( mz_header.e_lfanew + ne_header.ne_modtab,
780 ne_header.ne_cmod * sizeof(WORD),
781 pData ))
782 {
783 HeapFree( GetProcessHeap(), 0, fastload );
784 GlobalFree16( hModule );
785 return ERROR_BAD_FORMAT;
786 }
787 pData += ne_header.ne_cmod * sizeof(WORD);
788 }
789 else pModule->ne_modtab = 0; /* No module references */
790
791 /* Get the imported names table */
792
793 pModule->ne_imptab = pData - (BYTE *)pModule;
794 if (!READ( mz_header.e_lfanew + ne_header.ne_imptab,
795 ne_header.ne_enttab - ne_header.ne_imptab,
796 pData ))
797 {
798 HeapFree( GetProcessHeap(), 0, fastload );
799 GlobalFree16( hModule );
800 return ERROR_BAD_FORMAT;
801 }
802 pData += ne_header.ne_enttab - ne_header.ne_imptab;
803
804 /* Load entry table, convert it to the optimized version used by Windows */
805
806 if ((pTempEntryTable = HeapAlloc( GetProcessHeap(), 0, ne_header.ne_cbenttab)) != NULL)
807 {
808 BYTE nr_entries, type, *s;
809
810 TRACE("Converting entry table.\n");
811 pModule->ne_enttab = pData - (BYTE *)pModule;
812 if (!READ( mz_header.e_lfanew + ne_header.ne_enttab,
813 ne_header.ne_cbenttab, pTempEntryTable ))
814 {
815 HeapFree( GetProcessHeap(), 0, pTempEntryTable );
816 HeapFree( GetProcessHeap(), 0, fastload );
817 GlobalFree16( hModule );
818 return ERROR_BAD_FORMAT;
819 }
820
821 s = pTempEntryTable;
822 TRACE("entry table: offs %04x, len %04x, entries %d\n", ne_header.ne_enttab, ne_header.ne_cbenttab, *s);
823
824 bundle = (ET_BUNDLE *)pData;
825 TRACE("first bundle: %p\n", bundle);
826 memset(bundle, 0, sizeof(ET_BUNDLE)); /* in case no entry table exists */
827 entry = (ET_ENTRY *)((BYTE *)bundle+6);
828
829 while ((nr_entries = *s++))
830 {
831 if ((type = *s++))
832 {
833 bundle->last += nr_entries;
834 if (type == 0xff)
835 while (nr_entries--)
836 {
837 entry->type = type;
838 entry->flags = *s++;
839 s += 2;
840 entry->segnum = *s++;
841 entry->offs = *(WORD *)s; s += 2;
842 /*TRACE(module, "entry: %p, type: %d, flags: %d, segnum: %d, offs: %04x\n", entry, entry->type, entry->flags, entry->segnum, entry->offs);*/
843 entry++;
844 }
845 else
846 while (nr_entries--)
847 {
848 entry->type = type;
849 entry->flags = *s++;
850 entry->segnum = type;
851 entry->offs = *(WORD *)s; s += 2;
852 /*TRACE(module, "entry: %p, type: %d, flags: %d, segnum: %d, offs: %04x\n", entry, entry->type, entry->flags, entry->segnum, entry->offs);*/
853 entry++;
854 }
855 }
856 else
857 {
858 if (bundle->first == bundle->last)
859 {
860 bundle->first += nr_entries;
861 bundle->last += nr_entries;
862 }
863 else
864 {
865 oldbundle = bundle;
866 oldbundle->next = ((int)entry - (int)pModule);
867 bundle = (ET_BUNDLE *)entry;
868 TRACE("new bundle: %p\n", bundle);
869 bundle->first = bundle->last =
870 oldbundle->last + nr_entries;
871 bundle->next = 0;
872 entry = (ET_ENTRY*)(((BYTE*)entry)+sizeof(ET_BUNDLE));
873 }
874 }
875 }
876 HeapFree( GetProcessHeap(), 0, pTempEntryTable );
877 }
878 else
879 {
880 HeapFree( GetProcessHeap(), 0, fastload );
881 GlobalFree16( hModule );
882 return ERROR_BAD_FORMAT;
883 }
884
885 pData += ne_header.ne_cbenttab + sizeof(ET_BUNDLE) +
886 2 * (ne_header.ne_cbenttab - ne_header.ne_cmovent*6);
887
888 if ((DWORD)entry > (DWORD)pData)
889 ERR("converted entry table bigger than reserved space !!!\nentry: %p, pData: %p. Please report !\n", entry, pData);
890
891 /* Store the filename information */
892
893 pModule->fileinfo = pData - (BYTE *)pModule;
894 size = sizeof(OFSTRUCT) - sizeof(ofs->szPathName) + strlen(path) + 1;
895 ofs = (OFSTRUCT *)pData;
896 ofs->cBytes = size - 1;
897 ofs->fFixedDisk = 1;
898 strcpy( ofs->szPathName, path );
899 pData += size;
900
901 /* Free the fast-load area */
902
903 #undef READ
904 HeapFree( GetProcessHeap(), 0, fastload );
905
906 /* Get the non-resident names table */
907
908 if (ne_header.ne_cbnrestab)
909 {
910 pModule->nrname_handle = GlobalAlloc16( 0, ne_header.ne_cbnrestab );
911 if (!pModule->nrname_handle)
912 {
913 GlobalFree16( hModule );
914 return ERROR_BAD_FORMAT;
915 }
916 FarSetOwner16( pModule->nrname_handle, hModule );
917 buffer = GlobalLock16( pModule->nrname_handle );
918 if (!read_data( handle, ne_header.ne_nrestab, buffer, ne_header.ne_cbnrestab ))
919 {
920 GlobalFree16( pModule->nrname_handle );
921 GlobalFree16( hModule );
922 return ERROR_BAD_FORMAT;
923 }
924 }
925 else pModule->nrname_handle = 0;
926
927 /* Allocate a segment for the implicitly-loaded DLLs */
928
929 if (pModule->ne_cmod)
930 {
931 pModule->dlls_to_init = GlobalAlloc16( GMEM_ZEROINIT,
932 (pModule->ne_cmod+1)*sizeof(HMODULE16) );
933 if (!pModule->dlls_to_init)
934 {
935 if (pModule->nrname_handle) GlobalFree16( pModule->nrname_handle );
936 GlobalFree16( hModule );
937 return ERROR_BAD_FORMAT;
938 }
939 FarSetOwner16( pModule->dlls_to_init, hModule );
940 }
941 else pModule->dlls_to_init = 0;
942
943 NE_RegisterModule( pModule );
944 SNOOP16_RegisterDLL(pModule,path);
945 return hModule;
946 }
947
948
949 /***********************************************************************
950 * NE_LoadDLLs
951 *
952 * Load all DLLs implicitly linked to a module.
953 */
954 static BOOL NE_LoadDLLs( NE_MODULE *pModule )
955 {
956 int i;
957 WORD *pModRef = (WORD *)((char *)pModule + pModule->ne_modtab);
958 WORD *pDLLs = (WORD *)GlobalLock16( pModule->dlls_to_init );
959
960 for (i = 0; i < pModule->ne_cmod; i++, pModRef++)
961 {
962 char buffer[260], *p;
963 BYTE *pstr = (BYTE *)pModule + pModule->ne_imptab + *pModRef;
964 memcpy( buffer, pstr + 1, *pstr );
965 *(buffer + *pstr) = 0; /* terminate it */
966
967 TRACE("Loading '%s'\n", buffer );
968 if (!(*pModRef = GetModuleHandle16( buffer )))
969 {
970 /* If the DLL is not loaded yet, load it and store */
971 /* its handle in the list of DLLs to initialize. */
972 HMODULE16 hDLL;
973
974 /* Append .DLL to name if no extension present */
975 if (!(p = strrchr( buffer, '.')) || strchr( p, '/' ) || strchr( p, '\\'))
976 strcat( buffer, ".DLL" );
977
978 if ((hDLL = MODULE_LoadModule16( buffer, TRUE, TRUE )) < 32)
979 {
980 /* FIXME: cleanup what was done */
981
982 MESSAGE( "Could not load '%s' required by '%.*s', error=%d\n",
983 buffer, *((BYTE*)pModule + pModule->ne_restab),
984 (char *)pModule + pModule->ne_restab + 1, hDLL );
985 return FALSE;
986 }
987 *pModRef = GetExePtr( hDLL );
988 *pDLLs++ = *pModRef;
989 }
990 else /* Increment the reference count of the DLL */
991 {
992 NE_MODULE *pOldDLL = NE_GetPtr( *pModRef );
993 if (pOldDLL) pOldDLL->count++;
994 }
995 }
996 return TRUE;
997 }
998
999
1000 /**********************************************************************
1001 * NE_DoLoadModule
1002 *
1003 * Load first instance of NE module from file.
1004 *
1005 * pModule must point to a module structure prepared by NE_LoadExeHeader.
1006 * This routine must never be called twice on a module.
1007 *
1008 */
1009 static HINSTANCE16 NE_DoLoadModule( NE_MODULE *pModule )
1010 {
1011 /* Allocate the segments for this module */
1012
1013 if (!NE_CreateAllSegments( pModule ))
1014 return ERROR_NOT_ENOUGH_MEMORY; /* 8 */
1015
1016 /* Load the referenced DLLs */
1017
1018 if (!NE_LoadDLLs( pModule ))
1019 return ERROR_FILE_NOT_FOUND; /* 2 */
1020
1021 /* Load the segments */
1022
1023 NE_LoadAllSegments( pModule );
1024
1025 /* Make sure the usage count is 1 on the first loading of */
1026 /* the module, even if it contains circular DLL references */
1027
1028 pModule->count = 1;
1029
1030 return NE_GetInstance( pModule );
1031 }
1032
1033 /**********************************************************************
1034 * NE_LoadModule
1035 *
1036 * Load first instance of NE module. (Note: caller is responsible for
1037 * ensuring the module isn't already loaded!)
1038 *
1039 * If the module turns out to be an executable module, only a
1040 * handle to a module stub is returned; this needs to be initialized
1041 * by calling NE_DoLoadModule later, in the context of the newly
1042 * created process.
1043 *
1044 * If lib_only is TRUE, however, the module is perforce treated
1045 * like a DLL module, even if it is an executable module.
1046 *
1047 */
1048 static HINSTANCE16 NE_LoadModule( LPCSTR name, BOOL lib_only )
1049 {
1050 NE_MODULE *pModule;
1051 HMODULE16 hModule;
1052 HINSTANCE16 hInstance;
1053 HFILE16 hFile;
1054 OFSTRUCT ofs;
1055 UINT drive_type;
1056
1057 /* Open file */
1058 if ((hFile = OpenFile16( name, &ofs, OF_READ|OF_SHARE_DENY_WRITE )) == HFILE_ERROR16)
1059 return ERROR_FILE_NOT_FOUND;
1060
1061 hModule = NE_LoadExeHeader( DosFileHandleToWin32Handle(hFile), ofs.szPathName );
1062 if (hModule < 32)
1063 {
1064 _lclose16( hFile );
1065 return hModule;
1066 }
1067 pModule = NE_GetPtr( hModule );
1068
1069 drive_type = GetDriveTypeA( ofs.szPathName );
1070 if (drive_type != DRIVE_REMOVABLE && drive_type != DRIVE_CDROM)
1071 {
1072 /* keep the file handle open if not on a removable media */
1073 DuplicateHandle( GetCurrentProcess(), DosFileHandleToWin32Handle(hFile),
1074 GetCurrentProcess(), &pModule->fd, 0, FALSE,
1075 DUPLICATE_SAME_ACCESS );
1076 }
1077 _lclose16( hFile );
1078
1079 if ( !lib_only && !( pModule->ne_flags & NE_FFLAGS_LIBMODULE ) )
1080 return hModule;
1081
1082 hInstance = NE_DoLoadModule( pModule );
1083 if ( hInstance < 32 )
1084 {
1085 /* cleanup ... */
1086 NE_FreeModule( hModule, 0 );
1087 }
1088
1089 return hInstance;
1090 }
1091
1092
1093 /***********************************************************************
1094 * NE_DoLoadBuiltinModule
1095 *
1096 * Load a built-in Win16 module. Helper function for NE_LoadBuiltinModule.
1097 */
1098 static HMODULE16 NE_DoLoadBuiltinModule( const BUILTIN16_DESCRIPTOR *descr )
1099 {
1100 IMAGE_OS2_HEADER *header;
1101 NE_MODULE *pModule;
1102 OFSTRUCT *ofs;
1103 int minsize;
1104 SEGTABLEENTRY *pSegTable;
1105 HMODULE16 hModule;
1106
1107 hModule = GLOBAL_CreateBlock( GMEM_MOVEABLE, descr->module_start,
1108 descr->module_size, 0, WINE_LDT_FLAGS_DATA );
1109 if (!hModule) return ERROR_NOT_ENOUGH_MEMORY;
1110 FarSetOwner16( hModule, hModule );
1111
1112 header = GlobalLock16( hModule );
1113 pModule = (NE_MODULE *)header;
1114 ofs = (OFSTRUCT *)(header + 1);
1115 /* move the fileinfo structure a bit further to make space for the Wine-specific fields */
1116 if (sizeof(*header) + sizeof(*ofs) < sizeof(*pModule) + ofs->cBytes + 1)
1117 {
1118 FIXME( "module name %s too long\n", debugstr_a(ofs->szPathName) );
1119 return ERROR_NOT_ENOUGH_MEMORY;
1120 }
1121 memmove( pModule + 1, ofs, ofs->cBytes + 1 );
1122
1123 pModule->count = 1;
1124 pModule->fileinfo = sizeof(*pModule);
1125 pModule->self = hModule;
1126 /* NOTE: (Ab)use the rsrc32_map parameter for resource data pointer */
1127 pModule->rsrc32_map = (void *)descr->rsrc;
1128
1129 /* Allocate the code segment */
1130
1131 pSegTable = NE_SEG_TABLE( pModule );
1132 pSegTable->hSeg = GLOBAL_CreateBlock( GMEM_FIXED, descr->code_start,
1133 pSegTable->minsize, hModule,
1134 WINE_LDT_FLAGS_CODE|WINE_LDT_FLAGS_32BIT );
1135 if (!pSegTable->hSeg) return ERROR_NOT_ENOUGH_MEMORY;
1136 patch_code_segment( descr->code_start );
1137 pSegTable++;
1138
1139 /* Allocate the data segment */
1140
1141 minsize = pSegTable->minsize ? pSegTable->minsize : 0x10000;
1142 minsize += pModule->ne_heap;
1143 if (minsize > 0x10000) minsize = 0x10000;
1144 pSegTable->hSeg = GlobalAlloc16( GMEM_FIXED, minsize );
1145 if (!pSegTable->hSeg) return ERROR_NOT_ENOUGH_MEMORY;
1146 FarSetOwner16( pSegTable->hSeg, hModule );
1147 pModule->dgroup_entry = (char *)pSegTable - (char *)pModule;
1148 if (pSegTable->minsize) memcpy( GlobalLock16( pSegTable->hSeg ),
1149 descr->data_start, pSegTable->minsize);
1150 if (pModule->ne_heap)
1151 LocalInit16( GlobalHandleToSel16(pSegTable->hSeg), pSegTable->minsize, minsize );
1152
1153 if (descr->rsrc) NE_InitResourceHandler(pModule);
1154
1155 NE_RegisterModule( pModule );
1156
1157 return hModule;
1158 }
1159
1160
1161 /**********************************************************************
1162 * MODULE_LoadModule16
1163 *
1164 * Load a NE module in the order of the loadorder specification.
1165 * The caller is responsible that the module is not loaded already.
1166 *
1167 */
1168 static HINSTANCE16 MODULE_LoadModule16( LPCSTR libname, BOOL implicit, BOOL lib_only )
1169 {
1170 HINSTANCE16 hinst = 2;
1171 HMODULE16 hModule;
1172 NE_MODULE *pModule;
1173 const BUILTIN16_DESCRIPTOR *descr = NULL;
1174 char dllname[20], owner[20], *p;
1175 const char *basename;
1176 int owner_exists;
1177
1178 /* strip path information */
1179
1180 basename = libname;
1181 if (basename[0] && basename[1] == ':') basename += 2; /* strip drive specification */
1182 if ((p = strrchr( basename, '\\' ))) basename = p + 1;
1183 if ((p = strrchr( basename, '/' ))) basename = p + 1;
1184
1185 if (strlen(basename) < sizeof(dllname)-4)
1186 {
1187 strcpy( dllname, basename );
1188 p = strrchr( dllname, '.' );
1189 if (!p) strcat( dllname, ".dll" );
1190 for (p = dllname; *p; p++) if (*p >= 'A' && *p <= 'Z') *p += 32;
1191
1192 if (wine_dll_get_owner( dllname, owner, sizeof(owner), &owner_exists ) != -1)
1193 {
1194 HMODULE mod32 = LoadLibraryA( owner );
1195 if (mod32)
1196 {
1197 if (!(descr = find_dll_descr( dllname )))
1198 {
1199 FreeLibrary( mod32 );
1200 owner_exists = 0;
1201 }
1202 /* loading the 32-bit library can have the side effect of loading the module */
1203 /* if so, simply incr the ref count and return the module */
1204 if ((hModule = GetModuleHandle16( libname )))
1205 {
1206 TRACE( "module %s already loaded by owner\n", libname );
1207 pModule = NE_GetPtr( hModule );
1208 if (pModule) pModule->count++;
1209 return hModule;
1210 }
1211 }
1212 else
1213 {
1214 /* it's probably disabled by the load order config */
1215 WARN( "couldn't load owner %s for 16-bit dll %s\n", owner, dllname );
1216 return ERROR_FILE_NOT_FOUND;
1217 }
1218 }
1219 }
1220
1221 if (descr)
1222 {
1223 TRACE("Trying built-in '%s'\n", libname);
1224 hinst = NE_DoLoadBuiltinModule( descr );
1225 if (hinst > 32) TRACE_(loaddll)("Loaded module %s : builtin\n", debugstr_a(libname));
1226 }
1227 else
1228 {
1229 TRACE("Trying native dll '%s'\n", libname);
1230 hinst = NE_LoadModule(libname, lib_only);
1231 if (hinst > 32) TRACE_(loaddll)("Loaded module %s : native\n", debugstr_a(libname));
1232 if (hinst == ERROR_FILE_NOT_FOUND && owner_exists) hinst = 21; /* win32 module */
1233 }
1234
1235 if (hinst > 32 && !implicit)
1236 {
1237 hModule = GetModuleHandle16(libname);
1238 if(!hModule)
1239 {
1240 ERR("Serious trouble. Just loaded module '%s' (hinst=0x%04x), but can't get module handle. Filename too long ?\n",
1241 libname, hinst);
1242 return ERROR_INVALID_HANDLE;
1243 }
1244
1245 pModule = NE_GetPtr(hModule);
1246 if(!pModule)
1247 {
1248 ERR("Serious trouble. Just loaded module '%s' (hinst=0x%04x), but can't get NE_MODULE pointer\n",
1249 libname, hinst);
1250 return ERROR_INVALID_HANDLE;
1251 }
1252
1253 TRACE("Loaded module '%s' at 0x%04x.\n", libname, hinst);
1254
1255 /*
1256 * Call initialization routines for all loaded DLLs. Note that
1257 * when we load implicitly linked DLLs this will be done by InitTask().
1258 */
1259 if(pModule->ne_flags & NE_FFLAGS_LIBMODULE)
1260 {
1261 NE_InitializeDLLs(hModule);
1262 NE_DllProcessAttach(hModule);
1263 }
1264 }
1265 return hinst; /* The last error that occurred */
1266 }
1267
1268
1269 /**********************************************************************
1270 * NE_CreateThread
1271 *
1272 * Create the thread for a 16-bit module.
1273 */
1274 static HINSTANCE16 NE_CreateThread( NE_MODULE *pModule, WORD cmdShow, LPCSTR cmdline )
1275 {
1276 HANDLE hThread;
1277 TDB *pTask;
1278 HTASK16 hTask;
1279 HINSTANCE16 instance = 0;
1280
1281 if (!(hTask = TASK_SpawnTask( pModule, cmdShow, cmdline + 1, *cmdline, &hThread )))
1282 return 0;
1283
1284 /* Post event to start the task */
1285 PostEvent16( hTask );
1286
1287 /* Wait until we get the instance handle */
1288 do
1289 {
1290 DirectedYield16( hTask );
1291 if (!IsTask16( hTask )) /* thread has died */
1292 {
1293 DWORD exit_code;
1294 WaitForSingleObject( hThread, INFINITE );
1295 GetExitCodeThread( hThread, &exit_code );
1296 CloseHandle( hThread );
1297 return exit_code;
1298 }
1299 if (!(pTask = GlobalLock16( hTask ))) break;
1300 instance = pTask->hInstance;
1301 GlobalUnlock16( hTask );
1302 } while (!instance);
1303
1304 CloseHandle( hThread );
1305 return instance;
1306 }
1307
1308
1309 /**********************************************************************
1310 * LoadModule (KERNEL.45)
1311 */
1312 HINSTANCE16 WINAPI LoadModule16( LPCSTR name, LPVOID paramBlock )
1313 {
1314 BOOL lib_only = !paramBlock || (paramBlock == (LPVOID)-1);
1315 LOADPARAMS16 *params;
1316 HMODULE16 hModule;
1317 NE_MODULE *pModule;
1318 LPSTR cmdline;
1319 WORD cmdShow;
1320
1321 /* Load module */
1322
1323 if ( (hModule = NE_GetModuleByFilename(name) ) != 0 )
1324 {
1325 /* Special case: second instance of an already loaded NE module */
1326
1327 if ( !( pModule = NE_GetPtr( hModule ) ) ) return ERROR_BAD_FORMAT;
1328 if ( pModule->module32 ) return (HINSTANCE16)21;
1329
1330 /* Increment refcount */
1331
1332 pModule->count++;
1333 }
1334 else
1335 {
1336 /* Main case: load first instance of NE module */
1337
1338 if ( (hModule = MODULE_LoadModule16( name, FALSE, lib_only )) < 32 )
1339 return hModule;
1340
1341 if ( !(pModule = NE_GetPtr( hModule )) )
1342 return ERROR_BAD_FORMAT;
1343 }
1344
1345 /* If library module, we just retrieve the instance handle */
1346
1347 if ( ( pModule->ne_flags & NE_FFLAGS_LIBMODULE ) || lib_only )
1348 return NE_GetInstance( pModule );
1349
1350 /*
1351 * At this point, we need to create a new process.
1352 *
1353 * pModule points either to an already loaded module, whose refcount
1354 * has already been incremented (to avoid having the module vanish
1355 * in the meantime), or else to a stub module which contains only header
1356 * information.
1357 */
1358 params = (LOADPARAMS16 *)paramBlock;
1359 cmdShow = ((WORD *)MapSL(params->showCmd))[1];
1360 cmdline = MapSL( params->cmdLine );
1361 return NE_CreateThread( pModule, cmdShow, cmdline );
1362 }
1363
1364
1365 /**********************************************************************
1366 * NE_StartTask
1367 *
1368 * Startup code for a new 16-bit task.
1369 */
1370 DWORD NE_StartTask(void)
1371 {
1372 TDB *pTask = TASK_GetCurrent();
1373 NE_MODULE *pModule = NE_GetPtr( pTask->hModule );
1374 HINSTANCE16 hInstance, hPrevInstance;
1375 SEGTABLEENTRY *pSegTable = NE_SEG_TABLE( pModule );
1376 WORD sp;
1377
1378 if ( pModule->count > 0 )
1379 {
1380 /* Second instance of an already loaded NE module */
1381 /* Note that the refcount was already incremented by the parent */
1382
1383 hPrevInstance = NE_GetInstance( pModule );
1384
1385 if ( pModule->ne_autodata )
1386 if ( NE_CreateSegment( pModule, pModule->ne_autodata ) )
1387 NE_LoadSegment( pModule, pModule->ne_autodata );
1388
1389 hInstance = NE_GetInstance( pModule );
1390 TRACE("created second instance %04x[%d] of instance %04x.\n", hInstance, pModule->ne_autodata, hPrevInstance);
1391
1392 }
1393 else
1394 {
1395 /* Load first instance of NE module */
1396
1397 pModule->ne_flags |= NE_FFLAGS_GUI; /* FIXME: is this necessary? */
1398
1399 hInstance = NE_DoLoadModule( pModule );
1400 hPrevInstance = 0;
1401 }
1402
1403 if ( hInstance >= 32 )
1404 {
1405 CONTEXT86 context;
1406
1407 /* Enter instance handles into task struct */
1408
1409 pTask->hInstance = hInstance;
1410 pTask->hPrevInstance = hPrevInstance;
1411
1412 /* Use DGROUP for 16-bit stack */
1413
1414 if (!(sp = OFFSETOF(pModule->ne_sssp)))
1415 sp = pSegTable[SELECTOROF(pModule->ne_sssp)-1].minsize + pModule->ne_stack;
1416 sp &= ~1;
1417 sp -= sizeof(STACK16FRAME);
1418 NtCurrentTeb()->WOW32Reserved = (void *)MAKESEGPTR( GlobalHandleToSel16(hInstance), sp );
1419
1420 /* Registers at initialization must be:
1421 * ax zero
1422 * bx stack size in bytes
1423 * cx heap size in bytes
1424 * si previous app instance
1425 * di current app instance
1426 * bp zero
1427 * es selector to the PSP
1428 * ds dgroup of the application
1429 * ss stack selector
1430 * sp top of the stack
1431 */
1432 memset( &context, 0, sizeof(context) );
1433 context.SegCs = GlobalHandleToSel16(pSegTable[SELECTOROF(pModule->ne_csip) - 1].hSeg);
1434 context.SegDs = GlobalHandleToSel16(pTask->hInstance);
1435 context.SegEs = pTask->hPDB;
1436 context.SegFs = wine_get_fs();
1437 context.SegGs = wine_get_gs();
1438 context.Eip = OFFSETOF(pModule->ne_csip);
1439 context.Ebx = pModule->ne_stack;
1440 context.Ecx = pModule->ne_heap;
1441 context.Edi = pTask->hInstance;
1442 context.Esi = pTask->hPrevInstance;
1443
1444 /* Now call 16-bit entry point */
1445
1446 TRACE("Starting main program: cs:ip=%04lx:%04lx ds=%04lx ss:sp=%04x:%04x\n",
1447 context.SegCs, context.Eip, context.SegDs,
1448 SELECTOROF(NtCurrentTeb()->WOW32Reserved),
1449 OFFSETOF(NtCurrentTeb()->WOW32Reserved) );
1450
1451 WOWCallback16Ex( 0, WCB16_REGS, 0, NULL, (DWORD *)&context );
1452 ExitThread( LOWORD(context.Eax) );
1453 }
1454 return hInstance; /* error code */
1455 }
1456
1457 /***********************************************************************
1458 * LoadLibrary (KERNEL.95)
1459 * LoadLibrary16 (KERNEL32.35)
1460 */
1461 HINSTANCE16 WINAPI LoadLibrary16( LPCSTR libname )
1462 {
1463 return LoadModule16(libname, (LPVOID)-1 );
1464 }
1465
1466
1467 /**********************************************************************
1468 * MODULE_CallWEP
1469 *
1470 * Call a DLL's WEP, allowing it to shut down.
1471 * FIXME: we always pass the WEP WEP_FREE_DLL, never WEP_SYSTEM_EXIT
1472 */
1473 static BOOL16 MODULE_CallWEP( HMODULE16 hModule )
1474 {
1475 BOOL16 ret;
1476 FARPROC16 WEP = GetProcAddress16( hModule, "WEP" );
1477 if (!WEP) return FALSE;
1478
1479 __TRY
1480 {
1481 WORD args[1];
1482 DWORD dwRet;
1483
1484 args[0] = WEP_FREE_DLL;
1485 WOWCallback16Ex( (DWORD)WEP, WCB16_PASCAL, sizeof(args), args, &dwRet );
1486 ret = LOWORD(dwRet);
1487 }
1488 __EXCEPT(page_fault)
1489 {
1490 WARN("Page fault\n");
1491 ret = 0;
1492 }
1493 __ENDTRY
1494
1495 return ret;
1496 }
1497
1498
1499 /**********************************************************************
1500 * NE_FreeModule
1501 *
1502 * Implementation of FreeModule16().
1503 */
1504 static BOOL16 NE_FreeModule( HMODULE16 hModule, BOOL call_wep )
1505 {
1506 HMODULE16 *hPrevModule;
1507 NE_MODULE *pModule;
1508 HMODULE16 *pModRef;
1509 int i;
1510
1511 if (!(pModule = NE_GetPtr( hModule ))) return FALSE;
1512 hModule = pModule->self;
1513
1514 TRACE("%04x count %d\n", hModule, pModule->count );
1515
1516 if (((INT16)(--pModule->count)) > 0 ) return TRUE;
1517 else pModule->count = 0;
1518
1519 if (pModule->ne_flags & NE_FFLAGS_BUILTIN)
1520 return FALSE; /* Can't free built-in module */
1521
1522 if (call_wep && !(pModule->ne_flags & NE_FFLAGS_WIN32))
1523 {
1524 /* Free the objects owned by the DLL module */
1525 NE_CallUserSignalProc( hModule, USIG16_DLL_UNLOAD );
1526
1527 if (pModule->ne_flags & NE_FFLAGS_LIBMODULE)
1528 MODULE_CallWEP( hModule );
1529 else
1530 call_wep = FALSE; /* We are freeing a task -> no more WEPs */
1531 }
1532
1533
1534 /* Clear magic number just in case */
1535
1536 pModule->ne_magic = pModule->self = 0;
1537 if (pModule->fd) CloseHandle( pModule->fd );
1538
1539 /* Remove it from the linked list */
1540
1541 hPrevModule = &hFirstModule;
1542 while (*hPrevModule && (*hPrevModule != hModule))
1543 {
1544 hPrevModule = &(NE_GetPtr( *hPrevModule ))->next;
1545 }
1546 if (*hPrevModule) *hPrevModule = pModule->next;
1547
1548 /* Free the referenced modules */
1549
1550 pModRef = (HMODULE16*)((char *)pModule + pModule->ne_modtab);
1551 for (i = 0; i < pModule->ne_cmod; i++, pModRef++)
1552 {
1553 NE_FreeModule( *pModRef, call_wep );
1554 }
1555
1556 /* Free the module storage */
1557
1558 GlobalFreeAll16( hModule );
1559 return TRUE;
1560 }
1561
1562
1563 /**********************************************************************
1564 * FreeModule (KERNEL.46)
1565 */
1566 BOOL16 WINAPI FreeModule16( HMODULE16 hModule )
1567 {
1568 return NE_FreeModule( hModule, TRUE );
1569 }
1570
1571
1572 /***********************************************************************
1573 * FreeLibrary (KERNEL.96)
1574 * FreeLibrary16 (KERNEL32.36)
1575 */
1576 void WINAPI FreeLibrary16( HINSTANCE16 handle )
1577 {
1578 TRACE("%04x\n", handle );
1579 FreeModule16( handle );
1580 }
1581
1582
1583 /***********************************************************************
1584 * GetModuleHandle16 (KERNEL32.@)
1585 */
1586 HMODULE16 WINAPI GetModuleHandle16( LPCSTR name )
1587 {
1588 HMODULE16 hModule = hFirstModule;
1589 LPSTR s;
1590 BYTE len, *name_table;
1591 char tmpstr[MAX_PATH];
1592 NE_MODULE *pModule;
1593
1594 TRACE("(%s)\n", name);
1595
1596 if (!HIWORD(name)) return GetExePtr(LOWORD(name));
1597
1598 len = strlen(name);
1599 if (!len) return 0;
1600
1601 lstrcpynA(tmpstr, name, sizeof(tmpstr));
1602
1603 /* If 'name' matches exactly the module name of a module:
1604 * Return its handle.
1605 */
1606 for (hModule = hFirstModule; hModule ; hModule = pModule->next)
1607 {
1608 pModule = NE_GetPtr( hModule );
1609 if (!pModule) break;
1610 if (pModule->ne_flags & NE_FFLAGS_WIN32) continue;
1611
1612 name_table = (BYTE *)pModule + pModule->ne_restab;
1613 if ((*name_table == len) && !strncmp(name, name_table+1, len))
1614 return hModule;
1615 }
1616
1617 /* If uppercased 'name' matches exactly the module name of a module:
1618 * Return its handle
1619 */
1620 for (s = tmpstr; *s; s++) *s = RtlUpperChar(*s);
1621
1622 for (hModule = hFirstModule; hModule ; hModule = pModule->next)
1623 {
1624 pModule = NE_GetPtr( hModule );
1625 if (!pModule) break;
1626 if (pModule->ne_flags & NE_FFLAGS_WIN32) continue;
1627
1628 name_table = (BYTE *)pModule + pModule->ne_restab;
1629 /* FIXME: the strncasecmp is WRONG. It should not be case insensitive,
1630 * but case sensitive! (Unfortunately Winword 6 and subdlls have
1631 * lowercased module names, but try to load uppercase DLLs, so this
1632 * 'i' compare is just a quickfix until the loader handles that
1633 * correctly. -MM 990705
1634 */
1635 if ((*name_table == len) && !NE_strncasecmp(tmpstr, name_table+1, len))
1636 return hModule;
1637 }
1638
1639 /* If the base filename of 'name' matches the base filename of the module
1640 * filename of some module (case-insensitive compare):
1641 * Return its handle.
1642 */
1643
1644 /* basename: search backwards in passed name to \ / or : */
1645 s = tmpstr + strlen(tmpstr);
1646 while (s > tmpstr)
1647 {
1648 if (s[-1]=='/' || s[-1]=='\\' || s[-1]==':')
1649 break;
1650 s--;
1651 }
1652
1653 /* search this in loaded filename list */
1654 for (hModule = hFirstModule; hModule ; hModule = pModule->next)
1655 {
1656 char *loadedfn;
1657 OFSTRUCT *ofs;
1658
1659 pModule = NE_GetPtr( hModule );
1660 if (!pModule) break;
1661 if (!pModule->fileinfo) continue;
1662 if (pModule->ne_flags & NE_FFLAGS_WIN32) continue;
1663
1664 ofs = (OFSTRUCT*)((BYTE *)pModule + pModule->fileinfo);
1665 loadedfn = ((char*)ofs->szPathName) + strlen(ofs->szPathName);
1666 /* basename: search backwards in pathname to \ / or : */
1667 while (loadedfn > (char*)ofs->szPathName)
1668 {
1669 if (loadedfn[-1]=='/' || loadedfn[-1]=='\\' || loadedfn[-1]==':')
1670 break;
1671 loadedfn--;
1672 }
1673 /* case insensitive compare ... */
1674 if (!NE_strcasecmp(loadedfn, s))
1675 return hModule;
1676 }
1677 return 0;
1678 }
1679
1680
1681 /**********************************************************************
1682 * GetModuleName (KERNEL.27)
1683 */
1684 BOOL16 WINAPI GetModuleName16( HINSTANCE16 hinst, LPSTR buf, INT16 count )
1685 {
1686 NE_MODULE *pModule;
1687 BYTE *p;
1688
1689 if (!(pModule = NE_GetPtr( hinst ))) return FALSE;
1690 p = (BYTE *)pModule + pModule->ne_restab;
1691 if (count > *p) count = *p + 1;
1692 if (count > 0)
1693 {
1694 memcpy( buf, p + 1, count - 1 );
1695 buf[count-1] = '\0';
1696 }
1697 return TRUE;
1698 }
1699
1700
1701 /**********************************************************************
1702 * GetModuleFileName (KERNEL.49)
1703 *
1704 * Comment: see GetModuleFileNameA
1705 *
1706 * Even if invoked by second instance of a program,
1707 * it still returns path of first one.
1708 */
1709 INT16 WINAPI GetModuleFileName16( HINSTANCE16 hModule, LPSTR lpFileName,
1710 INT16 nSize )
1711 {
1712 NE_MODULE *pModule;
1713
1714 /* Win95 does not query hModule if set to 0 !
1715 * Is this wrong or maybe Win3.1 only ? */
1716 if (!hModule) hModule = GetCurrentTask();
1717
1718 if (!(pModule = NE_GetPtr( hModule ))) return 0;
1719 lstrcpynA( lpFileName, NE_MODULE_NAME(pModule), nSize );
1720 if (pModule->ne_expver >= 0x400)
1721 GetLongPathNameA(NE_MODULE_NAME(pModule), lpFileName, nSize);
1722 TRACE("%04x -> '%s'\n", hModule, lpFileName );
1723 return strlen(lpFileName);
1724 }
1725
1726
1727 /**********************************************************************
1728 * GetModuleUsage (KERNEL.48)
1729 */
1730 INT16 WINAPI GetModuleUsage16( HINSTANCE16 hModule )
1731 {
1732 NE_MODULE *pModule = NE_GetPtr( hModule );
1733 return pModule ? pModule->count : 0;
1734 }
1735
1736
1737 /**********************************************************************
1738 * GetExpWinVer (KERNEL.167)
1739 */
1740 WORD WINAPI GetExpWinVer16( HMODULE16 hModule )
1741 {
1742 NE_MODULE *pModule = NE_GetPtr( hModule );
1743 if ( !pModule ) return 0;
1744
1745 /*
1746 * For built-in modules, fake the expected version the module should
1747 * have according to the Windows version emulated by Wine
1748 */
1749 if ( !pModule->ne_expver )
1750 {
1751 OSVERSIONINFOA versionInfo;
1752 versionInfo.dwOSVersionInfoSize = sizeof(versionInfo);
1753
1754 if ( GetVersionExA( &versionInfo ) )
1755 pModule->ne_expver =
1756 (versionInfo.dwMajorVersion & 0xff) << 8
1757 | (versionInfo.dwMinorVersion & 0xff);
1758 }
1759
1760 return pModule->ne_expver;
1761 }
1762
1763
1764 /***********************************************************************
1765 * WinExec (KERNEL.166)
1766 */
1767 HINSTANCE16 WINAPI WinExec16( LPCSTR lpCmdLine, UINT16 nCmdShow )
1768 {
1769 LPCSTR p, args = NULL;
1770 LPCSTR name_beg, name_end;
1771 LPSTR name, cmdline;
1772 int arglen;
1773 HINSTANCE16 ret;
1774 char buffer[MAX_PATH];
1775
1776 if (*lpCmdLine == '"') /* has to be only one and only at beginning ! */
1777 {
1778 name_beg = lpCmdLine+1;
1779 p = strchr ( lpCmdLine+1, '"' );
1780 if (p)
1781 {
1782 name_end = p;
1783 args = strchr ( p, ' ' );
1784 }
1785 else /* yes, even valid with trailing '"' missing */
1786 name_end = lpCmdLine+strlen(lpCmdLine);
1787 }
1788 else
1789 {
1790 name_beg = lpCmdLine;
1791 args = strchr( lpCmdLine, ' ' );
1792 name_end = args ? args : lpCmdLine+strlen(lpCmdLine);
1793 }
1794
1795 if ((name_beg == lpCmdLine) && (!args))
1796 { /* just use the original cmdline string as file name */
1797 name = (LPSTR)lpCmdLine;
1798 }
1799 else
1800 {
1801 if (!(name = HeapAlloc( GetProcessHeap(), 0, name_end - name_beg + 1 )))
1802 return ERROR_NOT_ENOUGH_MEMORY;
1803 memcpy( name, name_beg, name_end - name_beg );
1804 name[name_end - name_beg] = '\0';
1805 }
1806
1807 if (args)
1808 {
1809 args++;
1810 arglen = strlen(args);
1811 cmdline = HeapAlloc( GetProcessHeap(), 0, 2 + arglen );
1812 cmdline[0] = (BYTE)arglen;
1813 strcpy( cmdline + 1, args );
1814 }
1815 else
1816 {
1817 cmdline = HeapAlloc( GetProcessHeap(), 0, 2 );
1818 cmdline[0] = cmdline[1] = 0;
1819 }
1820
1821 TRACE("name: '%s', cmdline: '%.*s'\n", name, cmdline[0], &cmdline[1]);
1822
1823 if (SearchPathA( NULL, name, ".exe", sizeof(buffer), buffer, NULL ))
1824 {
1825 LOADPARAMS16 params;
1826 WORD showCmd[2];
1827 showCmd[0] = 2;
1828 showCmd[1] = nCmdShow;
1829
1830 params.hEnvironment = 0;
1831 params.cmdLine = MapLS( cmdline );
1832 params.showCmd = MapLS( showCmd );
1833 params.reserved = 0;
1834
1835 ret = LoadModule16( buffer, &params );
1836 UnMapLS( params.cmdLine );
1837 UnMapLS( params.showCmd );
1838 }
1839 else ret = GetLastError();
1840
1841 HeapFree( GetProcessHeap(), 0, cmdline );
1842 if (name != lpCmdLine) HeapFree( GetProcessHeap(), 0, name );
1843
1844 if (ret == 21 || ret == ERROR_BAD_FORMAT) /* 32-bit module or unknown executable*/
1845 {
1846 DWORD count;
1847 ReleaseThunkLock( &count );
1848 ret = LOWORD( WinExec( lpCmdLine, nCmdShow ) );
1849 RestoreThunkLock( count );
1850 }
1851 return ret;
1852 }
1853
1854 /***********************************************************************
1855 * GetProcAddress (KERNEL.50)
1856 */
1857 FARPROC16 WINAPI GetProcAddress16( HMODULE16 hModule, LPCSTR name )
1858 {
1859 WORD ordinal;
1860 FARPROC16 ret;
1861
1862 if (!hModule) hModule = GetCurrentTask();
1863 hModule = GetExePtr( hModule );
1864
1865 if (HIWORD(name) != 0)
1866 {
1867 ordinal = NE_GetOrdinal( hModule, name );
1868 TRACE("%04x '%s'\n", hModule, name );
1869 }
1870 else
1871 {
1872 ordinal = LOWORD(name);
1873 TRACE("%04x %04x\n", hModule, ordinal );
1874 }
1875 if (!ordinal) return (FARPROC16)0;
1876
1877 ret = NE_GetEntryPoint( hModule, ordinal );
1878
1879 TRACE("returning %08x\n", (UINT)ret );
1880 return ret;
1881 }
1882
1883
1884 /***************************************************************************
1885 * HasGPHandler (KERNEL.338)
1886 */
1887 SEGPTR WINAPI HasGPHandler16( SEGPTR address )
1888 {
1889 HMODULE16 hModule;
1890 int gpOrdinal;
1891 SEGPTR gpPtr;
1892 GPHANDLERDEF *gpHandler;
1893
1894 if ( (hModule = FarGetOwner16( SELECTOROF(address) )) != 0
1895 && (gpOrdinal = NE_GetOrdinal( hModule, "__GP" )) != 0
1896 && (gpPtr = (SEGPTR)NE_GetEntryPointEx( hModule, gpOrdinal, FALSE )) != 0
1897 && !IsBadReadPtr16( gpPtr, sizeof(GPHANDLERDEF) )
1898 && (gpHandler = MapSL( gpPtr )) != NULL )
1899 {
1900 while (gpHandler->selector)
1901 {
1902 if ( SELECTOROF(address) == gpHandler->selector
1903 && OFFSETOF(address) >= gpHandler->rangeStart
1904 && OFFSETOF(address) < gpHandler->rangeEnd )
1905 return MAKESEGPTR( gpHandler->selector, gpHandler->handler );
1906 gpHandler++;
1907 }
1908 }
1909
1910 return 0;
1911 }
1912
1913
1914 /**********************************************************************
1915 * GetModuleHandle (KERNEL.47)
1916 *
1917 * Find a module from a module name.
1918 *
1919 * NOTE: The current implementation works the same way the Windows 95 one
1920 * does. Do not try to 'fix' it, fix the callers.
1921 * + It does not do ANY extension handling (except that strange .EXE bit)!
1922 * + It does not care about paths, just about basenames. (same as Windows)
1923 *
1924 * RETURNS
1925 * LOWORD:
1926 * the win16 module handle if found
1927 * 0 if not
1928 * HIWORD (undocumented, see "Undocumented Windows", chapter 5):
1929 * Always hFirstModule
1930 */
1931 DWORD WINAPI WIN16_GetModuleHandle( SEGPTR name )
1932 {
1933 if (HIWORD(name) == 0)
1934 return MAKELONG(GetExePtr( (HINSTANCE16)name), hFirstModule );
1935 return MAKELONG(GetModuleHandle16( MapSL(name)), hFirstModule );
1936 }
1937
1938 /**********************************************************************
1939 * NE_GetModuleByFilename
1940 */
1941 static HMODULE16 NE_GetModuleByFilename( LPCSTR name )
1942 {
1943 HMODULE16 hModule;
1944 LPSTR s, p;
1945 BYTE len, *name_table;
1946 char tmpstr[MAX_PATH];
1947 NE_MODULE *pModule;
1948
1949 lstrcpynA(tmpstr, name, sizeof(tmpstr));
1950
1951 /* If the base filename of 'name' matches the base filename of the module
1952 * filename of some module (case-insensitive compare):
1953 * Return its handle.
1954 */
1955
1956 /* basename: search backwards in passed name to \ / or : */
1957 s = tmpstr + strlen(tmpstr);
1958 while (s > tmpstr)
1959 {
1960 if (s[-1]=='/' || s[-1]=='\\' || s[-1]==':')
1961 break;
1962 s--;
1963 }
1964
1965 /* search this in loaded filename list */
1966 for (hModule = hFirstModule; hModule ; hModule = pModule->next)
1967 {
1968 char *loadedfn;
1969 OFSTRUCT *ofs;
1970
1971 pModule = NE_GetPtr( hModule );
1972 if (!pModule) break;
1973 if (!pModule->fileinfo) continue;
1974 if (pModule->ne_flags & NE_FFLAGS_WIN32) continue;
1975
1976 ofs = (OFSTRUCT*)((BYTE *)pModule + pModule->fileinfo);
1977 loadedfn = ((char*)ofs->szPathName) + strlen(ofs->szPathName);
1978 /* basename: search backwards in pathname to \ / or : */
1979 while (loadedfn > (char*)ofs->szPathName)
1980 {
1981 if (loadedfn[-1]=='/' || loadedfn[-1]=='\\' || loadedfn[-1]==':')
1982 break;
1983 loadedfn--;
1984 }
1985 /* case insensitive compare ... */
1986 if (!NE_strcasecmp(loadedfn, s))
1987 return hModule;
1988 }
1989 /* If basename (without ext) matches the module name of a module:
1990 * Return its handle.
1991 */
1992
1993 if ( (p = strrchr( s, '.' )) != NULL ) *p = '\0';
1994 len = strlen(s);
1995
1996 for (hModule = hFirstModule; hModule ; hModule = pModule->next)
1997 {
1998 pModule = NE_GetPtr( hModule );
1999 if (!pModule) break;
2000 if (pModule->ne_flags & NE_FFLAGS_WIN32) continue;
2001
2002 name_table = (BYTE *)pModule + pModule->ne_restab;
2003 if ((*name_table == len) && !NE_strncasecmp(s, name_table+1, len))
2004 return hModule;
2005 }
2006
2007 return 0;
2008 }
2009
2010 /***********************************************************************
2011 * GetProcAddress16 (KERNEL32.37)
2012 * Get procaddress in 16bit module from win32... (kernel32 undoc. ordinal func)
2013 */
2014 FARPROC16 WINAPI WIN32_GetProcAddress16( HMODULE hModule, LPCSTR name )
2015 {
2016 if (!hModule) return 0;
2017 if (HIWORD(hModule))
2018 {
2019 WARN("hModule is Win32 handle (%p)\n", hModule );
2020 return 0;
2021 }
2022 return GetProcAddress16( LOWORD(hModule), name );
2023 }
2024
2025 /**********************************************************************
2026 * ModuleFirst (TOOLHELP.59)
2027 */
2028 BOOL16 WINAPI ModuleFirst16( MODULEENTRY *lpme )
2029 {
2030 lpme->wNext = hFirstModule;
2031 return ModuleNext16( lpme );
2032 }
2033
2034
2035 /**********************************************************************
2036 * ModuleNext (TOOLHELP.60)
2037 */
2038 BOOL16 WINAPI ModuleNext16( MODULEENTRY *lpme )
2039 {
2040 NE_MODULE *pModule;
2041 char *name;
2042
2043 if (!lpme->wNext) return FALSE;
2044 if (!(pModule = NE_GetPtr( lpme->wNext ))) return FALSE;
2045 name = (char *)pModule + pModule->ne_restab;
2046 memcpy( lpme->szModule, name + 1, min(*name, MAX_MODULE_NAME) );
2047 lpme->szModule[min(*name, MAX_MODULE_NAME)] = '\0';
2048 lpme->hModule = lpme->wNext;
2049 lpme->wcUsage = pModule->count;
2050 lstrcpynA( lpme->szExePath, NE_MODULE_NAME(pModule), sizeof(lpme->szExePath) );
2051 lpme->wNext = pModule->next;
2052 return TRUE;
2053 }
2054
2055
2056 /**********************************************************************
2057 * ModuleFindName (TOOLHELP.61)
2058 */
2059 BOOL16 WINAPI ModuleFindName16( MODULEENTRY *lpme, LPCSTR name )
2060 {
2061 lpme->wNext = GetModuleHandle16( name );
2062 return ModuleNext16( lpme );
2063 }
2064
2065
2066 /**********************************************************************
2067 * ModuleFindHandle (TOOLHELP.62)
2068 */
2069 BOOL16 WINAPI ModuleFindHandle16( MODULEENTRY *lpme, HMODULE16 hModule )
2070 {
2071 hModule = GetExePtr( hModule );
2072 lpme->wNext = hModule;
2073 return ModuleNext16( lpme );
2074 }
2075
2076
2077 /***************************************************************************
2078 * IsRomModule (KERNEL.323)
2079 */
2080 BOOL16 WINAPI IsRomModule16( HMODULE16 unused )
2081 {
2082 return FALSE;
2083 }
2084
2085 /***************************************************************************
2086 * IsRomFile (KERNEL.326)
2087 */
2088 BOOL16 WINAPI IsRomFile16( HFILE16 unused )
2089 {
2090 return FALSE;
2091 }
2092
2093 /***********************************************************************
2094 * create_dummy_module
2095 *
2096 * Create a dummy NE module for Win32 or Winelib.
2097 */
2098 static HMODULE16 create_dummy_module( HMODULE module32 )
2099 {
2100 HMODULE16 hModule;
2101 NE_MODULE *pModule;
2102 SEGTABLEENTRY *pSegment;
2103 char *pStr,*s;
2104 unsigned int len;
2105 const char* basename;
2106 OFSTRUCT *ofs;
2107 int of_size, size;
2108 char filename[MAX_PATH];
2109 IMAGE_NT_HEADERS *nt = RtlImageNtHeader( module32 );
2110
2111 if (!nt) return ERROR_BAD_FORMAT;
2112
2113 /* Extract base filename */
2114 len = GetModuleFileNameA( module32, filename, sizeof(filename) );
2115 if (!len || len >= sizeof(filename)) return ERROR_BAD_FORMAT;
2116 basename = strrchr(filename, '\\');
2117 if (!basename) basename = filename;
2118 else basename++;
2119 len = strlen(basename);
2120 if ((s = strchr(basename, '.'))) len = s - basename;
2121
2122 /* Allocate module */
2123 of_size = sizeof(OFSTRUCT) - sizeof(ofs->szPathName)
2124 + strlen(filename) + 1;
2125 size = sizeof(NE_MODULE) +
2126 /* loaded file info */
2127 ((of_size + 3) & ~3) +
2128 /* segment table: DS,CS */
2129 2 * sizeof(SEGTABLEENTRY) +
2130 /* name table */
2131 len + 2 +
2132 /* several empty tables */
2133 8;
2134
2135 hModule = GlobalAlloc16( GMEM_MOVEABLE | GMEM_ZEROINIT, size );
2136 if (!hModule) return ERROR_BAD_FORMAT;
2137
2138 FarSetOwner16( hModule, hModule );
2139 pModule = (NE_MODULE *)GlobalLock16( hModule );
2140
2141 /* Set all used entries */
2142 pModule->ne_magic = IMAGE_OS2_SIGNATURE;
2143 pModule->count = 1;
2144 pModule->next = 0;
2145 pModule->ne_flags = NE_FFLAGS_WIN32;
2146 pModule->ne_autodata = 0;
2147 pModule->ne_sssp = MAKESEGPTR( 0, 1 );
2148 pModule->ne_csip = MAKESEGPTR( 0, 2 );
2149 pModule->ne_heap = 0;
2150 pModule->ne_stack = 0;
2151 pModule->ne_cseg = 2;
2152 pModule->ne_cmod = 0;
2153 pModule->ne_cbnrestab = 0;
2154 pModule->fileinfo = sizeof(NE_MODULE);
2155 pModule->ne_exetyp = NE_OSFLAGS_WINDOWS;
2156 pModule->self = hModule;
2157 pModule->module32 = module32;
2158
2159 /* Set version and flags */
2160 pModule->ne_expver = ((nt->OptionalHeader.MajorSubsystemVersion & 0xff) << 8 ) |
2161 (nt->OptionalHeader.MinorSubsystemVersion & 0xff);
2162 if (nt->FileHeader.Characteristics & IMAGE_FILE_DLL)
2163 pModule->ne_flags |= NE_FFLAGS_LIBMODULE | NE_FFLAGS_SINGLEDATA;
2164
2165 /* Set loaded file information */
2166 ofs = (OFSTRUCT *)(pModule + 1);
2167 memset( ofs, 0, of_size );
2168 ofs->cBytes = of_size < 256 ? of_size : 255; /* FIXME */
2169 strcpy( ofs->szPathName, filename );
2170
2171 pSegment = (SEGTABLEENTRY*)((char*)(pModule + 1) + ((of_size + 3) & ~3));
2172 pModule->ne_segtab = (char *)pSegment - (char *)pModule;
2173 /* Data segment */
2174 pSegment->size = 0;
2175 pSegment->flags = NE_SEGFLAGS_DATA;
2176 pSegment->minsize = 0x1000;
2177 pSegment++;
2178 /* Code segment */
2179 pSegment->flags = 0;
2180 pSegment++;
2181
2182 /* Module name */
2183 pStr = (char *)pSegment;
2184 pModule->ne_restab = pStr - (char *)pModule;
2185 assert(len<256);
2186 *pStr = len;
2187 lstrcpynA( pStr+1, basename, len+1 );
2188 pStr += len+2;
2189
2190 /* All tables zero terminated */
2191 pModule->ne_rsrctab = pModule->ne_imptab = pModule->ne_enttab = (char *)pStr - (char *)pModule;
2192
2193 NE_RegisterModule( pModule );
2194 LoadLibraryA( filename ); /* increment the ref count of the 32-bit module */
2195 return hModule;
2196 }
2197
2198 /***********************************************************************
2199 * PrivateLoadLibrary (KERNEL32.@)
2200 *
2201 * FIXME: rough guesswork, don't know what "Private" means
2202 */
2203 HINSTANCE16 WINAPI PrivateLoadLibrary(LPCSTR libname)
2204 {
2205 return LoadLibrary16(libname);
2206 }
2207
2208 /***********************************************************************
2209 * PrivateFreeLibrary (KERNEL32.@)
2210 *
2211 * FIXME: rough guesswork, don't know what "Private" means
2212 */
2213 void WINAPI PrivateFreeLibrary(HINSTANCE16 handle)
2214 {
2215 FreeLibrary16(handle);
2216 }
2217
2218 /***********************************************************************
2219 * LoadLibrary32 (KERNEL.452)
2220 * LoadSystemLibrary32 (KERNEL.482)
2221 */
2222 HMODULE WINAPI LoadLibrary32_16( LPCSTR libname )
2223 {
2224 HMODULE hModule;
2225 DWORD count;
2226
2227 ReleaseThunkLock( &count );
2228 hModule = LoadLibraryA( libname );
2229 RestoreThunkLock( count );
2230 return hModule;
2231 }
2232
2233 /***************************************************************************
2234 * MapHModuleLS (KERNEL32.@)
2235 */
2236 HMODULE16 WINAPI MapHModuleLS(HMODULE hmod)
2237 {
2238 HMODULE16 ret;
2239 NE_MODULE *pModule;
2240
2241 if (!hmod)
2242 return TASK_GetCurrent()->hInstance;
2243 if (!HIWORD(hmod))
2244 return LOWORD(hmod); /* we already have a 16 bit module handle */
2245 pModule = (NE_MODULE*)GlobalLock16(hFirstModule);
2246 while (pModule) {
2247 if (pModule->module32 == hmod)
2248 return pModule->self;
2249 pModule = (NE_MODULE*)GlobalLock16(pModule->next);
2250 }
2251 if ((ret = create_dummy_module( hmod )) < 32)
2252 {
2253 SetLastError(ret);
2254 ret = 0;
2255 }
2256 return ret;
2257 }
2258
2259 /***************************************************************************
2260 * MapHModuleSL (KERNEL32.@)
2261 */
2262 HMODULE WINAPI MapHModuleSL(HMODULE16 hmod)
2263 {
2264 NE_MODULE *pModule;
2265
2266 if (!hmod) {
2267 TDB *pTask = TASK_GetCurrent();
2268 hmod = pTask->hModule;
2269 }
2270 pModule = (NE_MODULE*)GlobalLock16(hmod);
2271 if ((pModule->ne_magic != IMAGE_OS2_SIGNATURE) || !(pModule->ne_flags & NE_FFLAGS_WIN32))
2272 return 0;
2273 return pModule->module32;
2274 }
2275
2276 /***************************************************************************
2277 * MapHInstLS (KERNEL32.@)
2278 * MapHInstLS (KERNEL.472)
2279 */
2280 void WINAPI __regs_MapHInstLS( CONTEXT86 *context )
2281 {
2282 context->Eax = MapHModuleLS( (HMODULE)context->Eax );
2283 }
2284 #ifdef DEFINE_REGS_ENTRYPOINT
2285 DEFINE_REGS_ENTRYPOINT( MapHInstLS, 0, 0 );
2286 #endif
2287
2288 /***************************************************************************
2289 * MapHInstSL (KERNEL32.@)
2290 * MapHInstSL (KERNEL.473)
2291 */
2292 void WINAPI __regs_MapHInstSL( CONTEXT86 *context )
2293 {
2294 context->Eax = (DWORD)MapHModuleSL( context->Eax );
2295 }
2296 #ifdef DEFINE_REGS_ENTRYPOINT
2297 DEFINE_REGS_ENTRYPOINT( MapHInstSL, 0, 0 );
2298 #endif
2299
2300 /***************************************************************************
2301 * MapHInstLS_PN (KERNEL32.@)
2302 */
2303 void WINAPI __regs_MapHInstLS_PN( CONTEXT86 *context )
2304 {
2305 if (context->Eax) context->Eax = MapHModuleLS( (HMODULE)context->Eax );
2306 }
2307 #ifdef DEFINE_REGS_ENTRYPOINT
2308 DEFINE_REGS_ENTRYPOINT( MapHInstLS_PN, 0, 0 );
2309 #endif
2310
2311 /***************************************************************************
2312 * MapHInstSL_PN (KERNEL32.@)
2313 */
2314 void WINAPI __regs_MapHInstSL_PN( CONTEXT86 *context )
2315 {
2316 if (context->Eax) context->Eax = (DWORD)MapHModuleSL( context->Eax );
2317 }
2318 #ifdef DEFINE_REGS_ENTRYPOINT
2319 DEFINE_REGS_ENTRYPOINT( MapHInstSL_PN, 0, 0 );
2320 #endif
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