ReactOS 0.4.15-dev-7931-gfd331f1
res.c
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1/*
2 * PE file resources
3 *
4 * Copyright 1995 Thomas Sandford
5 * Copyright 1996 Martin von Loewis
6 * Copyright 2003 Alexandre Julliard
7 * Copyright 1993 Robert J. Amstadt
8 * Copyright 1997 Marcus Meissner
9 *
10 * This library is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU Lesser General Public
12 * License as published by the Free Software Foundation; either
13 * version 2.1 of the License, or (at your option) any later version.
14 *
15 * This library is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 * Lesser General Public License for more details.
19 *
20 * You should have received a copy of the GNU Lesser General Public
21 * License along with this library; if not, write to the Free Software
22 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
23 */
24
25/* INCLUDES *****************************************************************/
26
27#include <rtl.h>
28
29#define NDEBUG
30#include <debug.h>
31
33 ULONG level, void **ret, int want_dir );
34
35/* FUNCTIONS ****************************************************************/
36
38{
43}
44
45/**********************************************************************
46 * is_data_file_module
47 *
48 * Check if a module handle is for a LOAD_LIBRARY_AS_DATAFILE module.
49 */
51{
52 return (ULONG_PTR)BaseAddress & 1;
53}
54
55
56/**********************************************************************
57 * push_language
58 *
59 * push a language in the list of languages to try
60 */
62{
63 ULONG i;
64 for (i = 0; i < pos; i++) if (list[i] == lang) return pos;
65 list[pos++] = lang;
66 return pos;
67}
68
69
70/**********************************************************************
71 * find_first_entry
72 *
73 * Find the first suitable entry in a resource directory
74 */
76 void *root, int want_dir )
77{
79 int pos;
80
81 for (pos = 0; pos < dir->NumberOfNamedEntries + dir->NumberOfIdEntries; pos++)
82 {
83 if (!entry[pos].DataIsDirectory == !want_dir)
84 return (IMAGE_RESOURCE_DIRECTORY *)((char *)root + entry[pos].OffsetToDirectory);
85 }
86 return NULL;
87}
88
89
90/**********************************************************************
91 * find_entry_by_id
92 *
93 * Find an entry by id in a resource directory
94 */
96 WORD id, void *root, int want_dir )
97{
99 int min, max, pos;
100
102 min = dir->NumberOfNamedEntries;
103 max = min + dir->NumberOfIdEntries - 1;
104 while (min <= max)
105 {
106 pos = (min + max) / 2;
107 if (entry[pos].Id == id)
108 {
109 if (!entry[pos].DataIsDirectory == !want_dir)
110 {
111 DPRINT("root %p dir %p id %04x ret %p\n",
112 root, dir, id, (const char*)root + entry[pos].OffsetToDirectory);
113 return (IMAGE_RESOURCE_DIRECTORY *)((char *)root + entry[pos].OffsetToDirectory);
114 }
115 break;
116 }
117 if (entry[pos].Id > id) max = pos - 1;
118 else min = pos + 1;
119 }
120 DPRINT("root %p dir %p id %04x not found\n", root, dir, id );
121 return NULL;
122}
123
124
125/**********************************************************************
126 * find_entry_by_name
127 *
128 * Find an entry by name in a resource directory
129 */
131 LPCWSTR name, void *root,
132 int want_dir )
133{
136 int min, max, res, pos;
137 size_t namelen;
138
139 if (!((ULONG_PTR)name & 0xFFFF0000)) return find_entry_by_id( dir, (ULONG_PTR)name & 0xFFFF, root, want_dir );
142 min = 0;
143 max = dir->NumberOfNamedEntries - 1;
144 while (min <= max)
145 {
146 pos = (min + max) / 2;
147 str = (const IMAGE_RESOURCE_DIR_STRING_U *)((const char *)root + entry[pos].NameOffset);
148 res = _wcsnicmp( name, str->NameString, str->Length );
149 if (!res && namelen == str->Length)
150 {
151 if (!entry[pos].DataIsDirectory == !want_dir)
152 {
153 DPRINT("root %p dir %p name %ws ret %p\n",
154 root, dir, name, (const char*)root + entry[pos].OffsetToDirectory);
155 return (IMAGE_RESOURCE_DIRECTORY *)((char *)root + entry[pos].OffsetToDirectory);
156 }
157 break;
158 }
159 if (res < 0) max = pos - 1;
160 else min = pos + 1;
161 }
162 DPRINT("root %p dir %p name %ws not found\n", root, dir, name);
163 return NULL;
164}
165
166#ifdef __i386__
168 void **ptr, ULONG *size )
169#else
171 void **ptr, ULONG *size )
172#endif
173{
175
177 {
178 ULONG dirsize;
179
182 else
183 {
184 if (ptr)
185 {
187 {
189 *ptr = RtlImageRvaToVa( RtlImageNtHeader(mod), mod, entry->OffsetToData, NULL );
190 }
191 else *ptr = (char *)BaseAddress + entry->OffsetToData;
192 }
193 if (size) *size = entry->Size;
194 }
195 }
197 {
199 }
200 _SEH2_END;
201 return status;
202}
203
204
205/*
206 * @implemented
207 */
210 PLDR_RESOURCE_INFO ResourceInfo,
211 ULONG Level,
212 PIMAGE_RESOURCE_DATA_ENTRY* ResourceDataEntry)
213{
214 void *res;
216
218 {
219 if (ResourceInfo)
220 {
221 DPRINT( "module %p type %lx name %lx lang %04lx level %lu\n",
222 BaseAddress, ResourceInfo->Type,
223 Level > 1 ? ResourceInfo->Name : 0,
224 Level > 2 ? ResourceInfo->Language : 0, Level );
225 }
226
227 status = find_entry( BaseAddress, ResourceInfo, Level, &res, FALSE );
228 if (NT_SUCCESS(status))
229 *ResourceDataEntry = res;
230 }
232 {
234 }
235 _SEH2_END;
236 return status;
237}
238
239#ifndef __i386__
240/*
241 * @implemented
242 */
245 IN PIMAGE_RESOURCE_DATA_ENTRY ResourceDataEntry,
248{
249 return LdrpAccessResource( BaseAddress, ResourceDataEntry, Resource, Size );
250}
251#endif
252
253/*
254 * @implemented
255 */
259 IN ULONG level,
261{
262 void *res;
264
266 {
267 if (info)
268 {
269 DPRINT( "module %p type %ws name %ws lang %04lx level %lu\n",
270 BaseAddress, (LPCWSTR)info->Type,
271 level > 1 ? (LPCWSTR)info->Name : L"",
272 level > 2 ? info->Language : 0, level );
273 }
274
276 if (NT_SUCCESS(status))
277 *addr = res;
278 }
280 {
282 }
283 _SEH2_END;
284 return status;
285}
286
287
288#define NAME_FROM_RESOURCE_ENTRY(RootDirectory, Entry) \
289 ((Entry)->NameIsString ? (ULONG_PTR)(RootDirectory) + (Entry)->NameOffset : (Entry)->Id)
290
291static
292LONG
294 _In_ PUCHAR ResourceData,
297{
298 PIMAGE_RESOURCE_DIR_STRING_U ResourceString;
299 PWSTR String1, String2;
300 USHORT ResourceStringLength;
301 WCHAR Char1, Char2;
302
303 /* Check if the resource name is an ID */
304 if (CompareName <= USHRT_MAX)
305 {
306 /* Just compare the 2 IDs */
307 return (CompareName - Entry->Id);
308 }
309 else
310 {
311 /* Get the resource string */
312 ResourceString = (PIMAGE_RESOURCE_DIR_STRING_U)(ResourceData +
313 Entry->NameOffset);
314
315 /* Get the string length */
316 ResourceStringLength = ResourceString->Length;
317
318 String1 = ResourceString->NameString;
320
321 /* Loop all characters of the resource string */
322 while (ResourceStringLength--)
323 {
324 /* Get the next characters */
325 Char1 = *String1++;
326 Char2 = *String2++;
327
328 /* Check if they don't match, or if the compare string ends */
329 if ((Char1 != Char2) || (Char2 == 0))
330 {
331 /* They don't match, fail */
332 return Char2 - Char1;
333 }
334 }
335
336 /* All characters match, check if the compare string ends here */
337 return (*String2 == 0) ? 0 : 1;
338 }
339}
340
342NTAPI
344 _In_ PVOID ImageBase,
345 _In_ PLDR_RESOURCE_INFO ResourceInfo,
349{
350 PUCHAR ResourceData;
352 ULONG i, j, k;
353 ULONG NumberOfTypeEntries, NumberOfNameEntries, NumberOfLangEntries;
354 ULONG Count, MaxResourceCount;
355 PIMAGE_RESOURCE_DIRECTORY TypeDirectory, NameDirectory, LangDirectory;
356 PIMAGE_RESOURCE_DIRECTORY_ENTRY TypeEntry, NameEntry, LangEntry;
358 ULONG Size;
359 LONG Result;
360
361 /* If the caller wants data, get the maximum count of entries */
362 MaxResourceCount = (Resources != NULL) ? *ResourceCount : 0;
363
364 /* Default to 0 */
365 *ResourceCount = 0;
366
367 /* Locate the resource directory */
368 ResourceData = RtlImageDirectoryEntryToData(ImageBase,
369 TRUE,
371 &Size);
372 if (ResourceData == NULL)
374
375 /* The type directory is at the root, followed by the entries */
376 TypeDirectory = (PIMAGE_RESOURCE_DIRECTORY)ResourceData;
377 TypeEntry = (PIMAGE_RESOURCE_DIRECTORY_ENTRY)(TypeDirectory + 1);
378
379 /* Get the number of entries in the type directory */
380 NumberOfTypeEntries = TypeDirectory->NumberOfNamedEntries +
381 TypeDirectory->NumberOfIdEntries;
382
383 /* Start with 0 resources and status success */
385 Count = 0;
386
387 /* Loop all entries in the type directory */
388 for (i = 0; i < NumberOfTypeEntries; ++i, ++TypeEntry)
389 {
390 /* Check if comparison of types is requested */
392 {
393 /* Compare the type with the requested Type */
394 Result = LdrpCompareResourceNames_U(ResourceData,
395 TypeEntry,
396 ResourceInfo->Type);
397
398 /* Not equal, continue with next entry */
399 if (Result != 0) continue;
400 }
401
402 /* The entry must point to the name directory */
403 if (!TypeEntry->DataIsDirectory)
404 {
406 }
407
408 /* Get a pointer to the name subdirectory and it's first entry */
409 NameDirectory = (PIMAGE_RESOURCE_DIRECTORY)(ResourceData +
410 TypeEntry->OffsetToDirectory);
411 NameEntry = (PIMAGE_RESOURCE_DIRECTORY_ENTRY)(NameDirectory + 1);
412
413 /* Get the number of entries in the name directory */
414 NumberOfNameEntries = NameDirectory->NumberOfNamedEntries +
415 NameDirectory->NumberOfIdEntries;
416
417 /* Loop all entries in the name directory */
418 for (j = 0; j < NumberOfNameEntries; ++j, ++NameEntry)
419 {
420 /* Check if comparison of names is requested */
422 {
423 /* Compare the name with the requested name */
424 Result = LdrpCompareResourceNames_U(ResourceData,
425 NameEntry,
426 ResourceInfo->Name);
427
428 /* Not equal, continue with next entry */
429 if (Result != 0) continue;
430 }
431
432 /* The entry must point to the language directory */
433 if (!NameEntry->DataIsDirectory)
434 {
436 }
437
438 /* Get a pointer to the language subdirectory and it's first entry */
439 LangDirectory = (PIMAGE_RESOURCE_DIRECTORY)(ResourceData +
440 NameEntry->OffsetToDirectory);
441 LangEntry = (PIMAGE_RESOURCE_DIRECTORY_ENTRY)(LangDirectory + 1);
442
443 /* Get the number of entries in the language directory */
444 NumberOfLangEntries = LangDirectory->NumberOfNamedEntries +
445 LangDirectory->NumberOfIdEntries;
446
447 /* Loop all entries in the language directory */
448 for (k = 0; k < NumberOfLangEntries; ++k, ++LangEntry)
449 {
450 /* Check if comparison of languages is requested */
452 {
453 /* Compare the language with the requested language */
454 Result = LdrpCompareResourceNames_U(ResourceData,
455 LangEntry,
456 ResourceInfo->Language);
457
458 /* Not equal, continue with next entry */
459 if (Result != 0) continue;
460 }
461
462 /* This entry must point to data */
463 if (LangEntry->DataIsDirectory)
464 {
466 }
467
468 /* Get a pointer to the data entry */
469 DataEntry = (PIMAGE_RESOURCE_DATA_ENTRY)(ResourceData +
470 LangEntry->OffsetToData);
471
472 /* Check if there is still space to store the data */
473 if (Count < MaxResourceCount)
474 {
475 /* There is, fill the entry */
476 Resources[Count].Type =
477 NAME_FROM_RESOURCE_ENTRY(ResourceData, TypeEntry);
478 Resources[Count].Name =
479 NAME_FROM_RESOURCE_ENTRY(ResourceData, NameEntry);
480 Resources[Count].Language =
481 NAME_FROM_RESOURCE_ENTRY(ResourceData, LangEntry);
482 Resources[Count].Data = (PUCHAR)ImageBase + DataEntry->OffsetToData;
483 Resources[Count].Reserved = 0;
484 Resources[Count].Size = DataEntry->Size;
485 }
486 else
487 {
488 /* There is not enough space, save error status */
490 }
491
492 /* Count this resource */
493 ++Count;
494 }
495 }
496 }
497
498 /* Return the number of matching resources */
500 return Status;
501}
DWORD Id
unsigned int dir
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LONG NTSTATUS
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static BOOL CompareName(LPCWSTR pszName1, LPCWSTR pszName2)
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_Inout_ PIRP _In_ NTSTATUS ExceptionCode
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_Acquires_exclusive_lock_ Resource _Acquires_shared_lock_ Resource _Inout_ PERESOURCE Resource
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unsigned short WORD
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Status
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GLint level
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GLsizeiptr size
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GLsizei GLenum const GLvoid GLsizei GLenum GLbyte GLbyte GLbyte GLdouble GLdouble GLdouble GLfloat GLfloat GLfloat GLint GLint GLint GLshort GLshort GLshort GLubyte GLubyte GLubyte GLuint GLuint GLuint GLushort GLushort GLushort GLbyte GLbyte GLbyte GLbyte GLdouble GLdouble GLdouble GLdouble GLfloat GLfloat GLfloat GLfloat GLint GLint GLint GLint GLshort GLshort GLshort GLshort GLubyte GLubyte GLubyte GLubyte GLuint GLuint GLuint GLuint GLushort GLushort GLushort GLushort GLboolean const GLdouble const GLfloat const GLint const GLshort const GLbyte const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLdouble const GLfloat const GLfloat const GLint const GLint const GLshort const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort GLenum GLenum GLenum GLfloat GLenum GLint GLenum GLenum GLenum GLfloat GLenum GLenum GLint GLenum GLfloat GLenum GLint GLint GLushort GLenum GLenum GLfloat GLenum GLenum GLint GLfloat const GLubyte GLenum GLenum GLenum const GLfloat GLenum GLenum const GLint GLenum GLint GLint GLsizei GLsizei GLint GLenum GLenum const GLvoid GLenum GLenum const GLfloat GLenum GLenum const GLint GLenum GLenum const GLdouble GLenum GLenum const GLfloat GLenum GLenum const GLint GLsizei GLuint GLfloat GLuint GLbitfield GLfloat GLint GLuint GLboolean GLenum GLfloat GLenum GLbitfield GLenum GLfloat GLfloat GLint GLint const GLfloat GLenum GLfloat GLfloat GLint GLint GLfloat GLfloat GLint GLint const GLfloat GLint GLfloat GLfloat GLint GLfloat GLfloat GLint GLfloat GLfloat const GLdouble const GLfloat const GLdouble const GLfloat GLint i
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GLsizei GLenum const GLvoid GLsizei GLenum GLbyte GLbyte GLbyte GLdouble GLdouble GLdouble GLfloat GLfloat GLfloat GLint GLint GLint GLshort GLshort GLshort GLubyte GLubyte GLubyte GLuint GLuint GLuint GLushort GLushort GLushort GLbyte GLbyte GLbyte GLbyte GLdouble GLdouble GLdouble GLdouble GLfloat GLfloat GLfloat GLfloat GLint GLint GLint GLint GLshort GLshort GLshort GLshort GLubyte GLubyte GLubyte GLubyte GLuint GLuint GLuint GLuint GLushort GLushort GLushort GLushort GLboolean const GLdouble const GLfloat const GLint const GLshort const GLbyte const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLdouble const GLfloat const GLfloat const GLint const GLint const GLshort const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort GLenum GLenum GLenum GLfloat GLenum GLint GLenum GLenum GLenum GLfloat GLenum GLenum GLint GLenum GLfloat GLenum GLint GLint GLushort GLenum GLenum GLfloat GLenum GLenum GLint GLfloat const GLubyte GLenum GLenum GLenum const GLfloat GLenum GLenum const GLint GLenum GLint GLint GLsizei GLsizei GLint GLenum GLenum const GLvoid GLenum GLenum const GLfloat GLenum GLenum const GLint GLenum GLenum const GLdouble GLenum GLenum const GLfloat GLenum GLenum const GLint GLsizei GLuint GLfloat GLuint GLbitfield GLfloat GLint GLuint GLboolean GLenum GLfloat GLenum GLbitfield GLenum GLfloat GLfloat GLint GLint const GLfloat GLenum GLfloat GLfloat GLint GLint GLfloat GLfloat GLint GLint const GLfloat GLint GLfloat GLfloat GLint GLfloat GLfloat GLint GLfloat GLfloat const GLdouble const GLfloat const GLdouble const GLfloat GLint GLint GLint j
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NTSTATUS NTAPI LdrAccessResource(_In_ PVOID BaseAddress, _In_ PIMAGE_RESOURCE_DATA_ENTRY ResourceDataEntry, _Out_opt_ PVOID *Resource, _Out_opt_ PULONG Size)
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NTSTATUS NTAPI LdrFindResourceDirectory_U(_In_ PVOID BaseAddress, _In_ PLDR_RESOURCE_INFO ResourceInfo, _In_ ULONG Level, _Out_ PIMAGE_RESOURCE_DIRECTORY *ResourceDirectory)
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struct _IMAGE_RESOURCE_DIRECTORY * PIMAGE_RESOURCE_DIRECTORY
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