dlls/ntdll/rtl.c

   1 /*
   2  * NT basis DLL
   3  *
   4  * This file contains the Rtl* API functions. These should be implementable.
   5  *
   6  * Copyright 1996-1998 Marcus Meissner
   7  * Copyright 1999      Alex Korobka
   8  * Copyright 2003      Thomas Mertes
   9  * Crc32 code Copyright 1986 Gary S. Brown (Public domain)
  10  *
  11  * This library is free software; you can redistribute it and/or
  12  * modify it under the terms of the GNU Lesser General Public
  13  * License as published by the Free Software Foundation; either
  14  * version 2.1 of the License, or (at your option) any later version.
  15  *
  16  * This library is distributed in the hope that it will be useful,
  17  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  19  * Lesser General Public License for more details.
  20  *
  21  * You should have received a copy of the GNU Lesser General Public
  22  * License along with this library; if not, write to the Free Software
  23  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  24  */
  25
  26 #include "config.h"
  27 #include "wine/port.h"
  28
  29 #include <stdlib.h>
  30 #include <stdarg.h>
  31 #include <stdio.h>
  32 #include <string.h>
  33 #ifdef HAVE_NETINET_IN_H
  34 #include <netinet/in.h>
  35 #endif
  36 #include "ntstatus.h"
  37 #define NONAMELESSUNION
  38 #define NONAMELESSSTRUCT
  39 #define WIN32_NO_STATUS
  40 #define USE_WS_PREFIX
  41 #include "windef.h"
  42 #include "winternl.h"
  43 #include "wine/debug.h"
  44 #include "wine/exception.h"
  45 #include "wine/unicode.h"
  46 #include "ntdll_misc.h"
  47 #include "inaddr.h"
  48 #include "in6addr.h"
  49 #include "ddk/ntddk.h"
  50
  51 WINE_DEFAULT_DEBUG_CHANNEL(ntdll);
  52
  53 /* CRC polynomial 0xedb88320 */
  54 static const DWORD CRC_table[256] =
  55 {
  56     0x00000000, 0x77073096, 0xee0e612c, 0x990951ba, 0x076dc419, 0x706af48f,
  57     0xe963a535, 0x9e6495a3, 0x0edb8832, 0x79dcb8a4, 0xe0d5e91e, 0x97d2d988,
  58     0x09b64c2b, 0x7eb17cbd, 0xe7b82d07, 0x90bf1d91, 0x1db71064, 0x6ab020f2,
  59     0xf3b97148, 0x84be41de, 0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7,
  60     0x136c9856, 0x646ba8c0, 0xfd62f97a, 0x8a65c9ec, 0x14015c4f, 0x63066cd9,
  61     0xfa0f3d63, 0x8d080df5, 0x3b6e20c8, 0x4c69105e, 0xd56041e4, 0xa2677172,
  62     0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b, 0x35b5a8fa, 0x42b2986c,
  63     0xdbbbc9d6, 0xacbcf940, 0x32d86ce3, 0x45df5c75, 0xdcd60dcf, 0xabd13d59,
  64     0x26d930ac, 0x51de003a, 0xc8d75180, 0xbfd06116, 0x21b4f4b5, 0x56b3c423,
  65     0xcfba9599, 0xb8bda50f, 0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924,
  66     0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d, 0x76dc4190, 0x01db7106,
  67     0x98d220bc, 0xefd5102a, 0x71b18589, 0x06b6b51f, 0x9fbfe4a5, 0xe8b8d433,
  68     0x7807c9a2, 0x0f00f934, 0x9609a88e, 0xe10e9818, 0x7f6a0dbb, 0x086d3d2d,
  69     0x91646c97, 0xe6635c01, 0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e,
  70     0x6c0695ed, 0x1b01a57b, 0x8208f4c1, 0xf50fc457, 0x65b0d9c6, 0x12b7e950,
  71     0x8bbeb8ea, 0xfcb9887c, 0x62dd1ddf, 0x15da2d49, 0x8cd37cf3, 0xfbd44c65,
  72     0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2, 0x4adfa541, 0x3dd895d7,
  73     0xa4d1c46d, 0xd3d6f4fb, 0x4369e96a, 0x346ed9fc, 0xad678846, 0xda60b8d0,
  74     0x44042d73, 0x33031de5, 0xaa0a4c5f, 0xdd0d7cc9, 0x5005713c, 0x270241aa,
  75     0xbe0b1010, 0xc90c2086, 0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f,
  76     0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4, 0x59b33d17, 0x2eb40d81,
  77     0xb7bd5c3b, 0xc0ba6cad, 0xedb88320, 0x9abfb3b6, 0x03b6e20c, 0x74b1d29a,
  78     0xead54739, 0x9dd277af, 0x04db2615, 0x73dc1683, 0xe3630b12, 0x94643b84,
  79     0x0d6d6a3e, 0x7a6a5aa8, 0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1,
  80     0xf00f9344, 0x8708a3d2, 0x1e01f268, 0x6906c2fe, 0xf762575d, 0x806567cb,
  81     0x196c3671, 0x6e6b06e7, 0xfed41b76, 0x89d32be0, 0x10da7a5a, 0x67dd4acc,
  82     0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5, 0xd6d6a3e8, 0xa1d1937e,
  83     0x38d8c2c4, 0x4fdff252, 0xd1bb67f1, 0xa6bc5767, 0x3fb506dd, 0x48b2364b,
  84     0xd80d2bda, 0xaf0a1b4c, 0x36034af6, 0x41047a60, 0xdf60efc3, 0xa867df55,
  85     0x316e8eef, 0x4669be79, 0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236,
  86     0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f, 0xc5ba3bbe, 0xb2bd0b28,
  87     0x2bb45a92, 0x5cb36a04, 0xc2d7ffa7, 0xb5d0cf31, 0x2cd99e8b, 0x5bdeae1d,
  88     0x9b64c2b0, 0xec63f226, 0x756aa39c, 0x026d930a, 0x9c0906a9, 0xeb0e363f,
  89     0x72076785, 0x05005713, 0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38,
  90     0x92d28e9b, 0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21, 0x86d3d2d4, 0xf1d4e242,
  91     0x68ddb3f8, 0x1fda836e, 0x81be16cd, 0xf6b9265b, 0x6fb077e1, 0x18b74777,
  92     0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c, 0x8f659eff, 0xf862ae69,
  93     0x616bffd3, 0x166ccf45, 0xa00ae278, 0xd70dd2ee, 0x4e048354, 0x3903b3c2,
  94     0xa7672661, 0xd06016f7, 0x4969474d, 0x3e6e77db, 0xaed16a4a, 0xd9d65adc,
  95     0x40df0b66, 0x37d83bf0, 0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9,
  96     0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6, 0xbad03605, 0xcdd70693,
  97     0x54de5729, 0x23d967bf, 0xb3667a2e, 0xc4614ab8, 0x5d681b02, 0x2a6f2b94,
  98     0xb40bbe37, 0xc30c8ea1, 0x5a05df1b, 0x2d02ef8d
  99 };
 100
 101 /*
 102  *      resource functions
 103  */
 104
 105 /***********************************************************************
 106  *           RtlInitializeResource      (NTDLL.@)
 107  *
 108  * xxxResource() functions implement multiple-reader-single-writer lock.
 109  * The code is based on information published in WDJ January 1999 issue.
 110  */
 111 void WINAPI RtlInitializeResource(LPRTL_RWLOCK rwl)
 112 {
 113     if( rwl )
 114     {
 115         rwl->iNumberActive = 0;
 116         rwl->uExclusiveWaiters = 0;
 117         rwl->uSharedWaiters = 0;
 118         rwl->hOwningThreadId = 0;
 119         rwl->dwTimeoutBoost = 0; /* no info on this one, default value is 0 */
 120         RtlInitializeCriticalSection( &rwl->rtlCS );
 121         rwl->rtlCS.DebugInfo->Spare[0] = (DWORD_PTR)(__FILE__ ": RTL_RWLOCK.rtlCS");
 122         NtCreateSemaphore( &rwl->hExclusiveReleaseSemaphore, SEMAPHORE_ALL_ACCESS, NULL, 0, 65535 );
 123         NtCreateSemaphore( &rwl->hSharedReleaseSemaphore, SEMAPHORE_ALL_ACCESS, NULL, 0, 65535 );
 124     }
 125 }
 126
 127
 128 /***********************************************************************
 129  *           RtlDeleteResource          (NTDLL.@)
 130  */
 131 void WINAPI RtlDeleteResource(LPRTL_RWLOCK rwl)
 132 {
 133     if( rwl )
 134     {
 135         RtlEnterCriticalSection( &rwl->rtlCS );
 136         if( rwl->iNumberActive || rwl->uExclusiveWaiters || rwl->uSharedWaiters )
 137             ERR("Deleting active MRSW lock (%p), expect failure\n", rwl );
 138         rwl->hOwningThreadId = 0;
 139         rwl->uExclusiveWaiters = rwl->uSharedWaiters = 0;
 140         rwl->iNumberActive = 0;
 141         NtClose( rwl->hExclusiveReleaseSemaphore );
 142         NtClose( rwl->hSharedReleaseSemaphore );
 143         RtlLeaveCriticalSection( &rwl->rtlCS );
 144         rwl->rtlCS.DebugInfo->Spare[0] = 0;
 145         RtlDeleteCriticalSection( &rwl->rtlCS );
 146     }
 147 }
 148
 149
 150 /***********************************************************************
 151  *          RtlAcquireResourceExclusive (NTDLL.@)
 152  */
 153 BYTE WINAPI RtlAcquireResourceExclusive(LPRTL_RWLOCK rwl, BYTE fWait)
 154 {
 155     BYTE retVal = 0;
 156     if( !rwl ) return 0;
 157
 158 start:
 159     RtlEnterCriticalSection( &rwl->rtlCS );
 160     if( rwl->iNumberActive == 0 ) /* lock is free */
 161     {
 162         rwl->iNumberActive = -1;
 163         retVal = 1;
 164     }
 165     else if( rwl->iNumberActive < 0 ) /* exclusive lock in progress */
 166     {
 167          if( rwl->hOwningThreadId == ULongToHandle(GetCurrentThreadId()) )
 168          {
 169              retVal = 1;
 170              rwl->iNumberActive--;
 171              goto done;
 172          }
 173 wait:
 174          if( fWait )
 175          {
 176              NTSTATUS status;
 177
 178              rwl->uExclusiveWaiters++;
 179
 180              RtlLeaveCriticalSection( &rwl->rtlCS );
 181              status = NtWaitForSingleObject( rwl->hExclusiveReleaseSemaphore, FALSE, NULL );
 182              if( HIWORD(status) )
 183                  goto done;
 184              goto start; /* restart the acquisition to avoid deadlocks */
 185          }
 186     }
 187     else  /* one or more shared locks are in progress */
 188          if( fWait )
 189              goto wait;
 190
 191     if( retVal == 1 )
 192         rwl->hOwningThreadId = ULongToHandle(GetCurrentThreadId());
 193 done:
 194     RtlLeaveCriticalSection( &rwl->rtlCS );
 195     return retVal;
 196 }
 197
 198 /***********************************************************************
 199  *          RtlAcquireResourceShared    (NTDLL.@)
 200  */
 201 BYTE WINAPI RtlAcquireResourceShared(LPRTL_RWLOCK rwl, BYTE fWait)
 202 {
 203     NTSTATUS status = STATUS_UNSUCCESSFUL;
 204     BYTE retVal = 0;
 205     if( !rwl ) return 0;
 206
 207 start:
 208     RtlEnterCriticalSection( &rwl->rtlCS );
 209     if( rwl->iNumberActive < 0 )
 210     {
 211         if( rwl->hOwningThreadId == ULongToHandle(GetCurrentThreadId()) )
 212         {
 213             rwl->iNumberActive--;
 214             retVal = 1;
 215             goto done;
 216         }
 217
 218         if( fWait )
 219         {
 220             rwl->uSharedWaiters++;
 221             RtlLeaveCriticalSection( &rwl->rtlCS );
 222             status = NtWaitForSingleObject( rwl->hSharedReleaseSemaphore, FALSE, NULL );
 223             if( HIWORD(status) )
 224                 goto done;
 225             goto start;
 226         }
 227     }
 228     else
 229     {
 230         if( status != STATUS_WAIT_0 ) /* otherwise RtlReleaseResource() has already done it */
 231             rwl->iNumberActive++;
 232         retVal = 1;
 233     }
 234 done:
 235     RtlLeaveCriticalSection( &rwl->rtlCS );
 236     return retVal;
 237 }
 238
 239
 240 /***********************************************************************
 241  *           RtlReleaseResource         (NTDLL.@)
 242  */
 243 void WINAPI RtlReleaseResource(LPRTL_RWLOCK rwl)
 244 {
 245     RtlEnterCriticalSection( &rwl->rtlCS );
 246
 247     if( rwl->iNumberActive > 0 ) /* have one or more readers */
 248     {
 249         if( --rwl->iNumberActive == 0 )
 250         {
 251             if( rwl->uExclusiveWaiters )
 252             {
 253 wake_exclusive:
 254                 rwl->uExclusiveWaiters--;
 255                 NtReleaseSemaphore( rwl->hExclusiveReleaseSemaphore, 1, NULL );
 256             }
 257         }
 258     }
 259     else
 260     if( rwl->iNumberActive < 0 ) /* have a writer, possibly recursive */
 261     {
 262         if( ++rwl->iNumberActive == 0 )
 263         {
 264             rwl->hOwningThreadId = 0;
 265             if( rwl->uExclusiveWaiters )
 266                 goto wake_exclusive;
 267             else
 268                 if( rwl->uSharedWaiters )
 269                 {
 270                     UINT n = rwl->uSharedWaiters;
 271                     rwl->iNumberActive = rwl->uSharedWaiters; /* prevent new writers from joining until
 272                                                                * all queued readers have done their thing */
 273                     rwl->uSharedWaiters = 0;
 274                     NtReleaseSemaphore( rwl->hSharedReleaseSemaphore, n, NULL );
 275                 }
 276         }
 277     }
 278     RtlLeaveCriticalSection( &rwl->rtlCS );
 279 }
 280
 281
 282 /***********************************************************************
 283  *           RtlDumpResource            (NTDLL.@)
 284  */
 285 void WINAPI RtlDumpResource(LPRTL_RWLOCK rwl)
 286 {
 287     if( rwl )
 288     {
 289         MESSAGE("RtlDumpResource(%p):\n\tactive count = %i\n\twaiting readers = %i\n\twaiting writers = %i\n",
 290                 rwl, rwl->iNumberActive, rwl->uSharedWaiters, rwl->uExclusiveWaiters );
 291         if( rwl->iNumberActive )
 292             MESSAGE("\towner thread = %p\n", rwl->hOwningThreadId );
 293     }
 294 }
 295
 296 /*
 297  *      misc functions
 298  */
 299
 300 /******************************************************************************
 301  *      DbgPrint        [NTDLL.@]
 302  */
 303 NTSTATUS WINAPIV DbgPrint(LPCSTR fmt, ...)
 304 {
 305   char buf[512];
 306   __ms_va_list args;
 307
 308   __ms_va_start(args, fmt);
 309   NTDLL__vsnprintf(buf, sizeof(buf), fmt, args);
 310   __ms_va_end(args);
 311
 312   MESSAGE("DbgPrint says: %s",buf);
 313   /* hmm, raise exception? */
 314   return STATUS_SUCCESS;
 315 }
 316
 317
 318 /******************************************************************************
 319  *      DbgPrintEx      [NTDLL.@]
 320  */
 321 NTSTATUS WINAPIV DbgPrintEx(ULONG iComponentId, ULONG Level, LPCSTR fmt, ...)
 322 {
 323     NTSTATUS ret;
 324     __ms_va_list args;
 325
 326     __ms_va_start(args, fmt);
 327     ret = vDbgPrintEx(iComponentId, Level, fmt, args);
 328     __ms_va_end(args);
 329     return ret;
 330 }
 331
 332 /******************************************************************************
 333  *      vDbgPrintEx     [NTDLL.@]
 334  */
 335 NTSTATUS WINAPI vDbgPrintEx( ULONG id, ULONG level, LPCSTR fmt, __ms_va_list args )
 336 {
 337     return vDbgPrintExWithPrefix( "", id, level, fmt, args );
 338 }
 339
 340 /******************************************************************************
 341  *      vDbgPrintExWithPrefix  [NTDLL.@]
 342  */
 343 NTSTATUS WINAPI vDbgPrintExWithPrefix( LPCSTR prefix, ULONG id, ULONG level, LPCSTR fmt, __ms_va_list args )
 344 {
 345     char buf[1024];
 346
 347     NTDLL__vsnprintf(buf, sizeof(buf), fmt, args);
 348
 349     switch (level & DPFLTR_MASK)
 350     {
 351     case DPFLTR_ERROR_LEVEL:   ERR("%s%x: %s", prefix, id, buf); break;
 352     case DPFLTR_WARNING_LEVEL: WARN("%s%x: %s", prefix, id, buf); break;
 353     case DPFLTR_TRACE_LEVEL:
 354     case DPFLTR_INFO_LEVEL:
 355     default:                   TRACE("%s%x: %s", prefix, id, buf); break;
 356     }
 357     return STATUS_SUCCESS;
 358 }
 359
 360 /******************************************************************************
 361  *  RtlAcquirePebLock           [NTDLL.@]
 362  */
 363 VOID WINAPI RtlAcquirePebLock(void)
 364 {
 365     RtlEnterCriticalSection( NtCurrentTeb()->Peb->FastPebLock );
 366 }
 367
 368 /******************************************************************************
 369  *  RtlReleasePebLock           [NTDLL.@]
 370  */
 371 VOID WINAPI RtlReleasePebLock(void)
 372 {
 373     RtlLeaveCriticalSection( NtCurrentTeb()->Peb->FastPebLock );
 374 }
 375
 376 /******************************************************************************
 377  *  RtlNewSecurityObject                [NTDLL.@]
 378  */
 379 NTSTATUS WINAPI
 380 RtlNewSecurityObject( PSECURITY_DESCRIPTOR ParentDescriptor,
 381                       PSECURITY_DESCRIPTOR CreatorDescriptor,
 382                       PSECURITY_DESCRIPTOR *NewDescriptor,
 383                       BOOLEAN IsDirectoryObject,
 384                       HANDLE Token,
 385                       PGENERIC_MAPPING GenericMapping )
 386 {
 387     FIXME("(%p %p %p %d %p %p) stub!\n", ParentDescriptor, CreatorDescriptor,
 388           NewDescriptor, IsDirectoryObject, Token, GenericMapping);
 389     return STATUS_NOT_IMPLEMENTED;
 390 }
 391
 392 /******************************************************************************
 393  *  RtlDeleteSecurityObject             [NTDLL.@]
 394  */
 395 NTSTATUS WINAPI
 396 RtlDeleteSecurityObject( PSECURITY_DESCRIPTOR *ObjectDescriptor )
 397 {
 398     FIXME("(%p) stub!\n", ObjectDescriptor);
 399     return STATUS_NOT_IMPLEMENTED;
 400 }
 401
 402 /******************************************************************************
 403  *  RtlInitializeGenericTable           [NTDLL.@]
 404  */
 405 PVOID WINAPI RtlInitializeGenericTable(PVOID pTable, PVOID arg2, PVOID arg3, PVOID arg4, PVOID arg5)
 406 {
 407   FIXME("(%p,%p,%p,%p,%p) stub!\n", pTable, arg2, arg3, arg4, arg5);
 408   return NULL;
 409 }
 410
 411 /******************************************************************************
 412  *  RtlEnumerateGenericTableWithoutSplaying           [NTDLL.@]
 413  */
 414 PVOID RtlEnumerateGenericTableWithoutSplaying(PVOID pTable, PVOID *RestartKey)
 415 {
 416     static int warn_once;
 417
 418     if (!warn_once++)
 419         FIXME("(%p,%p) stub!\n", pTable, RestartKey);
 420     return NULL;
 421 }
 422
 423 /******************************************************************************
 424  *  RtlNumberGenericTableElements           [NTDLL.@]
 425  */
 426 ULONG RtlNumberGenericTableElements(PVOID pTable)
 427 {
 428     FIXME("(%p) stub!\n", pTable);
 429     return 0;
 430 }
 431
 432 /******************************************************************************
 433  *  RtlMoveMemory   [NTDLL.@]
 434  *
 435  * Move a block of memory that may overlap.
 436  *
 437  * PARAMS
 438  *  Destination [O] End destination for block
 439  *  Source      [O] Where to start copying from
 440  *  Length      [I] Number of bytes to copy
 441  *
 442  * RETURNS
 443  *  Nothing.
 444  */
 445 #undef RtlMoveMemory
 446 VOID WINAPI RtlMoveMemory( void *Destination, const void *Source, SIZE_T Length )
 447 {
 448     memmove(Destination, Source, Length);
 449 }
 450
 451 /******************************************************************************
 452  *  RtlFillMemory   [NTDLL.@]
 453  *
 454  * Set a block of memory with a value.
 455  *
 456  * PARAMS
 457  *  Destination [O] Block to fill
 458  *  Length      [I] Number of bytes to fill
 459  *  Fill        [I] Value to set
 460  *
 461  * RETURNS
 462  *  Nothing.
 463  */
 464 #undef RtlFillMemory
 465 VOID WINAPI RtlFillMemory( VOID *Destination, SIZE_T Length, BYTE Fill )
 466 {
 467     memset(Destination, Fill, Length);
 468 }
 469
 470 /******************************************************************************
 471  *  RtlZeroMemory   [NTDLL.@]
 472  *
 473  * Set a block of memory with 0's.
 474  *
 475  * PARAMS
 476  *  Destination [O] Block to fill
 477  *  Length      [I] Number of bytes to fill
 478  *
 479  * RETURNS
 480  *  Nothing.
 481  */
 482 #undef RtlZeroMemory
 483 VOID WINAPI RtlZeroMemory( VOID *Destination, SIZE_T Length )
 484 {
 485     memset(Destination, 0, Length);
 486 }
 487
 488 /******************************************************************************
 489  *  RtlCompareMemory   [NTDLL.@]
 490  *
 491  * Compare one block of memory with another
 492  *
 493  * PARAMS
 494  *  Source1 [I] Source block
 495  *  Source2 [I] Block to compare to Source1
 496  *  Length  [I] Number of bytes to compare
 497  *
 498  * RETURNS
 499  *  The length of the first byte at which Source1 and Source2 differ, or Length
 500  *  if they are the same.
 501  */
 502 SIZE_T WINAPI RtlCompareMemory( const VOID *Source1, const VOID *Source2, SIZE_T Length)
 503 {
 504     SIZE_T i;
 505     for(i=0; (i<Length) && (((const BYTE*)Source1)[i]==((const BYTE*)Source2)[i]); i++);
 506     return i;
 507 }
 508
 509 /******************************************************************************
 510  *  RtlCompareMemoryUlong   [NTDLL.@]
 511  *
 512  * Compare a block of memory with a value, a ULONG at a time
 513  *
 514  * PARAMS
 515  *  Source1 [I] Source block. This must be ULONG aligned
 516  *  Length  [I] Number of bytes to compare. This should be a multiple of 4
 517  *  dwVal   [I] Value to compare to
 518  *
 519  * RETURNS
 520  *  The byte position of the first byte at which Source1 is not dwVal.
 521  */
 522 SIZE_T WINAPI RtlCompareMemoryUlong(const ULONG *Source1, SIZE_T Length, ULONG dwVal)
 523 {
 524     SIZE_T i;
 525     for(i = 0; i < Length/sizeof(ULONG) && Source1[i] == dwVal; i++);
 526     return i * sizeof(ULONG);
 527 }
 528
 529 /******************************************************************************
 530  *  RtlCopyMemory   [NTDLL.@]
 531  */
 532 #undef RtlCopyMemory
 533 void WINAPI RtlCopyMemory(void *dest, const void *src, SIZE_T len)
 534 {
 535     memcpy(dest, src, len);
 536 }
 537
 538 /******************************************************************************
 539  *  RtlAssert                           [NTDLL.@]
 540  *
 541  * Fail a debug assertion.
 542  *
 543  * RETURNS
 544  *  Nothing. This call does not return control to its caller.
 545  *
 546  * NOTES
 547  * Not implemented in non-debug versions.
 548  */
 549 void WINAPI RtlAssert(void *assertion, void *filename, ULONG linenumber, char *message)
 550 {
 551     FIXME("(%s, %s, %u, %s): stub\n", debugstr_a((char*)assertion), debugstr_a((char*)filename),
 552         linenumber, debugstr_a(message));
 553 }
 554
 555 /*************************************************************************
 556  * RtlFillMemoryUlong   [NTDLL.@]
 557  *
 558  * Fill memory with a 32 bit (dword) value.
 559  *
 560  * PARAMS
 561  *  lpDest  [I] Bitmap pointer
 562  *  ulCount [I] Number of dwords to write
 563  *  ulValue [I] Value to fill with
 564  *
 565  * RETURNS
 566  *  Nothing.
 567  */
 568 VOID WINAPI RtlFillMemoryUlong(ULONG* lpDest, ULONG ulCount, ULONG ulValue)
 569 {
 570   TRACE("(%p,%d,%d)\n", lpDest, ulCount, ulValue);
 571
 572   ulCount /= sizeof(ULONG);
 573   while(ulCount--)
 574     *lpDest++ = ulValue;
 575 }
 576
 577 /*********************************************************************
 578  *                  RtlComputeCrc32   [NTDLL.@]
 579  *
 580  * Calculate the CRC32 checksum of a block of bytes
 581  *
 582  * PARAMS
 583  *  dwInitial [I] Initial CRC value
 584  *  pData     [I] Data block
 585  *  iLen      [I] Length of the byte block
 586  *
 587  * RETURNS
 588  *  The cumulative CRC32 of dwInitial and iLen bytes of the pData block.
 589  */
 590 DWORD WINAPI RtlComputeCrc32(DWORD dwInitial, const BYTE *pData, INT iLen)
 591 {
 592   DWORD crc = ~dwInitial;
 593
 594   TRACE("(%d,%p,%d)\n", dwInitial, pData, iLen);
 595
 596   while (iLen > 0)
 597   {
 598     crc = CRC_table[(crc ^ *pData) & 0xff] ^ (crc >> 8);
 599     pData++;
 600     iLen--;
 601   }
 602   return ~crc;
 603 }
 604
 605
 606 /*************************************************************************
 607  * RtlUlonglongByteSwap    [NTDLL.@]
 608  *
 609  * Swap the bytes of an unsigned long long value.
 610  *
 611  * PARAMS
 612  *  i [I] Value to swap bytes of
 613  *
 614  * RETURNS
 615  *  The value with its bytes swapped.
 616  */
 617 ULONGLONG __cdecl RtlUlonglongByteSwap(ULONGLONG i)
 618 {
 619   return ((ULONGLONG)RtlUlongByteSwap(i) << 32) | RtlUlongByteSwap(i>>32);
 620 }
 621
 622 /*************************************************************************
 623  * RtlUlongByteSwap    [NTDLL.@]
 624  *
 625  * Swap the bytes of an unsigned int value.
 626  *
 627  * NOTES
 628  *  ix86 version takes argument in %ecx. Other systems use the inline version.
 629  */
 630 #ifdef __i386__
 631 __ASM_GLOBAL_FUNC(NTDLL_RtlUlongByteSwap,
 632                   "movl %ecx,%eax\n\t"
 633                   "bswap %eax\n\t"
 634                   "ret")
 635 #endif
 636
 637 /*************************************************************************
 638  * RtlUshortByteSwap    [NTDLL.@]
 639  *
 640  * Swap the bytes of an unsigned short value.
 641  *
 642  * NOTES
 643  *  i386 version takes argument in %cx. Other systems use the inline version.
 644  */
 645 #ifdef __i386__
 646 __ASM_GLOBAL_FUNC(NTDLL_RtlUshortByteSwap,
 647                   "movb %ch,%al\n\t"
 648                   "movb %cl,%ah\n\t"
 649                   "ret")
 650 #endif
 651
 652
 653 /*************************************************************************
 654  * RtlUniform   [NTDLL.@]
 655  *
 656  * Generates an uniform random number
 657  *
 658  * PARAMS
 659  *  seed [O] The seed of the Random function
 660  *
 661  * RETURNS
 662  *  It returns a random number uniformly distributed over [0..MAXLONG-1].
 663  *
 664  * NOTES
 665  *  Generates an uniform random number using D.H. Lehmer's 1948 algorithm.
 666  *  In our case the algorithm is:
 667  *
 668  *|  result = (*seed * 0x7fffffed + 0x7fffffc3) % MAXLONG;
 669  *|
 670  *|  *seed = result;
 671  *
 672  * DIFFERENCES
 673  *  The native documentation states that the random number is
 674  *  uniformly distributed over [0..MAXLONG]. In reality the native
 675  *  function and our function return a random number uniformly
 676  *  distributed over [0..MAXLONG-1].
 677  */
 678 ULONG WINAPI RtlUniform (PULONG seed)
 679 {
 680     ULONG result;
 681
 682    /*
 683     * Instead of the algorithm stated above, we use the algorithm
 684     * below, which is totally equivalent (see the tests), but does
 685     * not use a division and therefore is faster.
 686     */
 687     result = *seed * 0xffffffed + 0x7fffffc3;
 688     if (result == 0xffffffff || result == 0x7ffffffe) {
 689         result = (result + 2) & MAXLONG;
 690     } else if (result == 0x7fffffff) {
 691         result = 0;
 692     } else if ((result & 0x80000000) == 0) {
 693         result = result + (~result & 1);
 694     } else {
 695         result = (result + (result & 1)) & MAXLONG;
 696     } /* if */
 697     *seed = result;
 698     return result;
 699 }
 700
 701
 702 /*************************************************************************
 703  * RtlRandom   [NTDLL.@]
 704  *
 705  * Generates a random number
 706  *
 707  * PARAMS
 708  *  seed [O] The seed of the Random function
 709  *
 710  * RETURNS
 711  *  It returns a random number distributed over [0..MAXLONG-1].
 712  */
 713 ULONG WINAPI RtlRandom (PULONG seed)
 714 {
 715     static ULONG saved_value[128] =
 716     { /*   0 */ 0x4c8bc0aa, 0x4c022957, 0x2232827a, 0x2f1e7626, 0x7f8bdafb, 0x5c37d02a, 0x0ab48f72, 0x2f0c4ffa,
 717       /*   8 */ 0x290e1954, 0x6b635f23, 0x5d3885c0, 0x74b49ff8, 0x5155fa54, 0x6214ad3f, 0x111e9c29, 0x242a3a09,
 718       /*  16 */ 0x75932ae1, 0x40ac432e, 0x54f7ba7a, 0x585ccbd5, 0x6df5c727, 0x0374dad1, 0x7112b3f1, 0x735fc311,
 719       /*  24 */ 0x404331a9, 0x74d97781, 0x64495118, 0x323e04be, 0x5974b425, 0x4862e393, 0x62389c1d, 0x28a68b82,
 720       /*  32 */ 0x0f95da37, 0x7a50bbc6, 0x09b0091c, 0x22cdb7b4, 0x4faaed26, 0x66417ccd, 0x189e4bfa, 0x1ce4e8dd,
 721       /*  40 */ 0x5274c742, 0x3bdcf4dc, 0x2d94e907, 0x32eac016, 0x26d33ca3, 0x60415a8a, 0x31f57880, 0x68c8aa52,
 722       /*  48 */ 0x23eb16da, 0x6204f4a1, 0x373927c1, 0x0d24eb7c, 0x06dd7379, 0x2b3be507, 0x0f9c55b1, 0x2c7925eb,
 723       /*  56 */ 0x36d67c9a, 0x42f831d9, 0x5e3961cb, 0x65d637a8, 0x24bb3820, 0x4d08e33d, 0x2188754f, 0x147e409e,
 724       /*  64 */ 0x6a9620a0, 0x62e26657, 0x7bd8ce81, 0x11da0abb, 0x5f9e7b50, 0x23e444b6, 0x25920c78, 0x5fc894f0,
 725       /*  72 */ 0x5e338cbb, 0x404237fd, 0x1d60f80f, 0x320a1743, 0x76013d2b, 0x070294ee, 0x695e243b, 0x56b177fd,
 726       /*  80 */ 0x752492e1, 0x6decd52f, 0x125f5219, 0x139d2e78, 0x1898d11e, 0x2f7ee785, 0x4db405d8, 0x1a028a35,
 727       /*  88 */ 0x63f6f323, 0x1f6d0078, 0x307cfd67, 0x3f32a78a, 0x6980796c, 0x462b3d83, 0x34b639f2, 0x53fce379,
 728       /*  96 */ 0x74ba50f4, 0x1abc2c4b, 0x5eeaeb8d, 0x335a7a0d, 0x3973dd20, 0x0462d66b, 0x159813ff, 0x1e4643fd,
 729       /* 104 */ 0x06bc5c62, 0x3115e3fc, 0x09101613, 0x47af2515, 0x4f11ec54, 0x78b99911, 0x3db8dd44, 0x1ec10b9b,
 730       /* 112 */ 0x5b5506ca, 0x773ce092, 0x567be81a, 0x5475b975, 0x7a2cde1a, 0x494536f5, 0x34737bb4, 0x76d9750b,
 731       /* 120 */ 0x2a1f6232, 0x2e49644d, 0x7dddcbe7, 0x500cebdb, 0x619dab9e, 0x48c626fe, 0x1cda3193, 0x52dabe9d };
 732     ULONG rand;
 733     int pos;
 734     ULONG result;
 735
 736     rand = (*seed * 0x7fffffed + 0x7fffffc3) % 0x7fffffff;
 737     *seed = (rand * 0x7fffffed + 0x7fffffc3) % 0x7fffffff;
 738     pos = *seed & 0x7f;
 739     result = saved_value[pos];
 740     saved_value[pos] = rand;
 741     return(result);
 742 }
 743
 744
 745 /*************************************************************************
 746  * RtlRandomEx   [NTDLL.@]
 747  */
 748 ULONG WINAPI RtlRandomEx( ULONG *seed )
 749 {
 750     WARN( "semi-stub: should use a different algorithm\n" );
 751     return RtlRandom( seed );
 752 }
 753
 754 /*************************************************************************
 755  * RtlAreAllAccessesGranted   [NTDLL.@]
 756  *
 757  * Check if all desired accesses are granted
 758  *
 759  * RETURNS
 760  *  TRUE: All desired accesses are granted
 761  *  FALSE: Otherwise
 762  */
 763 BOOLEAN WINAPI RtlAreAllAccessesGranted(
 764     ACCESS_MASK GrantedAccess,
 765     ACCESS_MASK DesiredAccess)
 766 {
 767     return (GrantedAccess & DesiredAccess) == DesiredAccess;
 768 }
 769
 770
 771 /*************************************************************************
 772  * RtlAreAnyAccessesGranted   [NTDLL.@]
 773  *
 774  * Check if at least one of the desired accesses is granted
 775  *
 776  * PARAMS
 777  *  GrantedAccess [I] Access mask of granted accesses
 778  *  DesiredAccess [I] Access mask of desired accesses
 779  *
 780  * RETURNS
 781  *  TRUE: At least one of the desired accesses is granted
 782  *  FALSE: Otherwise
 783  */
 784 BOOLEAN WINAPI RtlAreAnyAccessesGranted(
 785     ACCESS_MASK GrantedAccess,
 786     ACCESS_MASK DesiredAccess)
 787 {
 788     return (GrantedAccess & DesiredAccess) != 0;
 789 }
 790
 791
 792 /*************************************************************************
 793  * RtlMapGenericMask   [NTDLL.@]
 794  *
 795  * Determine the nongeneric access rights specified by an access mask
 796  *
 797  * RETURNS
 798  *  Nothing.
 799  */
 800 void WINAPI RtlMapGenericMask(
 801     PACCESS_MASK AccessMask,
 802     const GENERIC_MAPPING *GenericMapping)
 803 {
 804     if (*AccessMask & GENERIC_READ) {
 805         *AccessMask |= GenericMapping->GenericRead;
 806     } /* if */
 807
 808     if (*AccessMask & GENERIC_WRITE) {
 809         *AccessMask |= GenericMapping->GenericWrite;
 810     } /* if */
 811
 812     if (*AccessMask & GENERIC_EXECUTE) {
 813         *AccessMask |= GenericMapping->GenericExecute;
 814     } /* if */
 815
 816     if (*AccessMask & GENERIC_ALL) {
 817         *AccessMask |= GenericMapping->GenericAll;
 818     } /* if */
 819
 820     *AccessMask &= 0x0FFFFFFF;
 821 }
 822
 823
 824 /*************************************************************************
 825  * RtlCopyLuid   [NTDLL.@]
 826  *
 827  * Copy a local unique ID.
 828  *
 829  * PARAMS
 830  *  LuidDest [O] Destination for the copied Luid
 831  *  LuidSrc  [I] Source Luid to copy to LuidDest
 832  *
 833  * RETURNS
 834  *  Nothing.
 835  */
 836 void WINAPI RtlCopyLuid (PLUID LuidDest, const LUID *LuidSrc)
 837 {
 838     *LuidDest = *LuidSrc;
 839 }
 840
 841
 842 /*************************************************************************
 843  * RtlEqualLuid   [NTDLL.@]
 844  *
 845  * Compare two local unique IDs.
 846  *
 847  * PARAMS
 848  *  Luid1 [I] First Luid to compare to Luid2
 849  *  Luid2 [I] Second Luid to compare to Luid1
 850  *
 851  * RETURNS
 852  *  TRUE: The two LUIDs are equal.
 853  *  FALSE: Otherwise
 854  */
 855 BOOLEAN WINAPI RtlEqualLuid (const LUID *Luid1, const LUID *Luid2)
 856 {
 857   return (Luid1->LowPart ==  Luid2->LowPart && Luid1->HighPart == Luid2->HighPart);
 858 }
 859
 860
 861 /*************************************************************************
 862  * RtlCopyLuidAndAttributesArray   [NTDLL.@]
 863  *
 864  * Copy an array of local unique IDs and attributes.
 865  *
 866  * PARAMS
 867  *  Count [I] Number of Luid/attributes in Src
 868  *  Src   [I] Source Luid/attributes to copy
 869  *  Dest  [O] Destination for copied Luid/attributes
 870  *
 871  * RETURNS
 872  *  Nothing.
 873  *
 874  * NOTES
 875  *  Dest must be large enough to hold Src.
 876  */
 877 void WINAPI RtlCopyLuidAndAttributesArray(
 878     ULONG Count,
 879     const LUID_AND_ATTRIBUTES *Src,
 880     PLUID_AND_ATTRIBUTES Dest)
 881 {
 882     ULONG i;
 883
 884     for (i = 0; i < Count; i++) Dest[i] = Src[i];
 885 }
 886
 887 /***********************************************************************
 888  * RtlIpv4StringToAddressExW [NTDLL.@]
 889  */
 890 NTSTATUS WINAPI RtlIpv4StringToAddressExW(const WCHAR *str, BOOLEAN strict, IN_ADDR *address, USHORT *port)
 891 {
 892     FIXME("(%s, %u, %p, %p): stub\n", debugstr_w(str), strict, address, port);
 893     return STATUS_NOT_IMPLEMENTED;
 894 }
 895
 896 /***********************************************************************
 897  * RtlIpv4StringToAddressW [NTDLL.@]
 898  */
 899 NTSTATUS WINAPI RtlIpv4StringToAddressW(const WCHAR *str, BOOLEAN strict, const WCHAR **terminator, IN_ADDR *address)
 900 {
 901     FIXME("(%s, %u, %p, %p): stub\n", debugstr_w(str), strict, terminator, address);
 902     return STATUS_NOT_IMPLEMENTED;
 903 }
 904
 905 /***********************************************************************
 906  * RtlIpv6StringToAddressExW [NTDLL.@]
 907  */
 908 NTSTATUS NTAPI RtlIpv6StringToAddressExW(const WCHAR *str, IN6_ADDR *address, ULONG *scope, USHORT *port)
 909 {
 910     FIXME("(%s, %p, %p, %p): stub\n", debugstr_w(str), address, scope, port);
 911     return STATUS_NOT_IMPLEMENTED;
 912 }
 913
 914 /***********************************************************************
 915  * RtlIpv4AddressToStringExW [NTDLL.@]
 916  *
 917  * Convert the given ipv4 address and optional the port to a string
 918  *
 919  * PARAMS
 920  *  pin     [I]  PTR to the ip address to convert (network byte order)
 921  *  port    [I]  optional port to convert (network byte order)
 922  *  buffer  [O]  destination buffer for the result
 923  *  psize   [IO] PTR to available/used size of the destination buffer
 924  *
 925  * RETURNS
 926  *  Success: STATUS_SUCCESS
 927  *  Failure: STATUS_INVALID_PARAMETER
 928  *
 929  */
 930 NTSTATUS WINAPI RtlIpv4AddressToStringExW(const IN_ADDR *pin, USHORT port, LPWSTR buffer, PULONG psize)
 931 {
 932     WCHAR tmp_ip[32];
 933     static const WCHAR fmt_ip[] = {'%','u','.','%','u','.','%','u','.','%','u',0};
 934     static const WCHAR fmt_port[] = {':','%','u',0};
 935     ULONG needed;
 936
 937     if (!pin || !buffer || !psize)
 938         return STATUS_INVALID_PARAMETER;
 939
 940     TRACE("(%p:0x%x, %d, %p, %p:%d)\n", pin, pin->S_un.S_addr, port, buffer, psize, *psize);
 941
 942     needed = sprintfW(tmp_ip, fmt_ip,
 943                       pin->S_un.S_un_b.s_b1, pin->S_un.S_un_b.s_b2,
 944                       pin->S_un.S_un_b.s_b3, pin->S_un.S_un_b.s_b4);
 945
 946     if (port) needed += sprintfW(tmp_ip + needed, fmt_port, ntohs(port));
 947
 948     if (*psize > needed) {
 949         *psize = needed + 1;
 950         strcpyW(buffer, tmp_ip);
 951         return STATUS_SUCCESS;
 952     }
 953
 954     *psize = needed + 1;
 955     return STATUS_INVALID_PARAMETER;
 956 }
 957
 958 /***********************************************************************
 959  * RtlIpv4AddressToStringExA [NTDLL.@]
 960  *
 961  * Convert the given ipv4 address and optional the port to a string
 962  *
 963  * See RtlIpv4AddressToStringExW
 964  */
 965 NTSTATUS WINAPI RtlIpv4AddressToStringExA(const IN_ADDR *pin, USHORT port, LPSTR buffer, PULONG psize)
 966 {
 967     CHAR tmp_ip[32];
 968     ULONG needed;
 969
 970     if (!pin || !buffer || !psize)
 971         return STATUS_INVALID_PARAMETER;
 972
 973     TRACE("(%p:0x%x, %d, %p, %p:%d)\n", pin, pin->S_un.S_addr, port, buffer, psize, *psize);
 974
 975     needed = sprintf(tmp_ip, "%u.%u.%u.%u",
 976                      pin->S_un.S_un_b.s_b1, pin->S_un.S_un_b.s_b2,
 977                      pin->S_un.S_un_b.s_b3, pin->S_un.S_un_b.s_b4);
 978
 979     if (port) needed += sprintf(tmp_ip + needed, ":%u", ntohs(port));
 980
 981     if (*psize > needed) {
 982         *psize = needed + 1;
 983         strcpy(buffer, tmp_ip);
 984         return STATUS_SUCCESS;
 985     }
 986
 987     *psize = needed + 1;
 988     return STATUS_INVALID_PARAMETER;
 989 }
 990
 991 /***********************************************************************
 992  * RtlIpv4AddressToStringW [NTDLL.@]
 993  *
 994  * Convert the given ipv4 address to a string
 995  *
 996  * PARAMS
 997  *  pin     [I]  PTR to the ip address to convert (network byte order)
 998  *  buffer  [O]  destination buffer for the result (at least 16 character)
 999  *
1000  * RETURNS
1001  *  PTR to the 0 character at the end of the converted string
1002  *
1003  */
1004 WCHAR * WINAPI RtlIpv4AddressToStringW(const IN_ADDR *pin, LPWSTR buffer)
1005 {
1006     ULONG size = 16;
1007
1008     if (RtlIpv4AddressToStringExW(pin, 0, buffer, &size)) size = 0;
1009     return buffer + size - 1;
1010 }
1011
1012 /***********************************************************************
1013  * RtlIpv4AddressToStringA [NTDLL.@]
1014  *
1015  * Convert the given ipv4 address to a string
1016  *
1017  * See RtlIpv4AddressToStringW
1018  */
1019 CHAR * WINAPI RtlIpv4AddressToStringA(const IN_ADDR *pin, LPSTR buffer)
1020 {
1021     ULONG size = 16;
1022
1023     if (RtlIpv4AddressToStringExA(pin, 0, buffer, &size)) size = 0;
1024     return buffer + size - 1;
1025 }
1026
1027 /***********************************************************************
1028  * get_pointer_obfuscator (internal)
1029  */
1030 static DWORD_PTR get_pointer_obfuscator( void )
1031 {
1032     static DWORD_PTR pointer_obfuscator;
1033
1034     if (!pointer_obfuscator)
1035     {
1036         ULONG seed = NtGetTickCount();
1037         ULONG_PTR rand;
1038
1039         /* generate a random value for the obfuscator */
1040         rand = RtlUniform( &seed );
1041
1042         /* handle 64bit pointers */
1043         rand ^= (ULONG_PTR)RtlUniform( &seed ) << ((sizeof (DWORD_PTR) - sizeof (ULONG))*8);
1044
1045         /* set the high bits so dereferencing obfuscated pointers will (usually) crash */
1046         rand |= (ULONG_PTR)0xc0000000 << ((sizeof (DWORD_PTR) - sizeof (ULONG))*8);
1047
1048         interlocked_cmpxchg_ptr( (void**) &pointer_obfuscator, (void*) rand, NULL );
1049     }
1050
1051     return pointer_obfuscator;
1052 }
1053
1054 /*************************************************************************
1055  * RtlEncodePointer   [NTDLL.@]
1056  */
1057 PVOID WINAPI RtlEncodePointer( PVOID ptr )
1058 {
1059     DWORD_PTR ptrval = (DWORD_PTR) ptr;
1060     return (PVOID)(ptrval ^ get_pointer_obfuscator());
1061 }
1062
1063 PVOID WINAPI RtlDecodePointer( PVOID ptr )
1064 {
1065     DWORD_PTR ptrval = (DWORD_PTR) ptr;
1066     return (PVOID)(ptrval ^ get_pointer_obfuscator());
1067 }
1068
1069 /*************************************************************************
1070  * RtlInitializeSListHead   [NTDLL.@]
1071  */
1072 VOID WINAPI RtlInitializeSListHead(PSLIST_HEADER list)
1073 {
1074 #ifdef _WIN64
1075     list->s.Alignment = list->s.Region = 0;
1076     list->Header16.HeaderType = 1;  /* we use the 16-byte header */
1077 #else
1078     list->Alignment = 0;
1079 #endif
1080 }
1081
1082 /*************************************************************************
1083  * RtlQueryDepthSList   [NTDLL.@]
1084  */
1085 WORD WINAPI RtlQueryDepthSList(PSLIST_HEADER list)
1086 {
1087 #ifdef _WIN64
1088     return list->Header16.Depth;
1089 #else
1090     return list->s.Depth;
1091 #endif
1092 }
1093
1094 /*************************************************************************
1095  * RtlFirstEntrySList   [NTDLL.@]
1096  */
1097 PSLIST_ENTRY WINAPI RtlFirstEntrySList(const SLIST_HEADER* list)
1098 {
1099 #ifdef _WIN64
1100     return (SLIST_ENTRY *)((ULONG_PTR)list->Header16.NextEntry << 4);
1101 #else
1102     return list->s.Next.Next;
1103 #endif
1104 }
1105
1106 /*************************************************************************
1107  * RtlInterlockedFlushSList   [NTDLL.@]
1108  */
1109 PSLIST_ENTRY WINAPI RtlInterlockedFlushSList(PSLIST_HEADER list)
1110 {
1111     SLIST_HEADER old, new;
1112
1113 #ifdef _WIN64
1114     if (!list->Header16.NextEntry) return NULL;
1115     new.s.Alignment = new.s.Region = 0;
1116     new.Header16.HeaderType = 1;  /* we use the 16-byte header */
1117     do
1118     {
1119         old = *list;
1120         new.Header16.Sequence = old.Header16.Sequence + 1;
1121     } while (!interlocked_cmpxchg128((__int64 *)list, new.s.Region, new.s.Alignment, (__int64 *)&old));
1122     return (SLIST_ENTRY *)((ULONG_PTR)old.Header16.NextEntry << 4);
1123 #else
1124     if (!list->s.Next.Next) return NULL;
1125     new.Alignment = 0;
1126     do
1127     {
1128         old = *list;
1129         new.s.Sequence = old.s.Sequence + 1;
1130     } while (interlocked_cmpxchg64((__int64 *)&list->Alignment, new.Alignment,
1131                                    old.Alignment) != old.Alignment);
1132     return old.s.Next.Next;
1133 #endif
1134 }
1135
1136 /*************************************************************************
1137  * RtlInterlockedPushEntrySList   [NTDLL.@]
1138  */
1139 PSLIST_ENTRY WINAPI RtlInterlockedPushEntrySList(PSLIST_HEADER list, PSLIST_ENTRY entry)
1140 {
1141     SLIST_HEADER old, new;
1142
1143 #ifdef _WIN64
1144     new.Header16.NextEntry = (ULONG_PTR)entry >> 4;
1145     do
1146     {
1147         old = *list;
1148         entry->Next = (SLIST_ENTRY *)((ULONG_PTR)old.Header16.NextEntry << 4);
1149         new.Header16.Depth = old.Header16.Depth + 1;
1150         new.Header16.Sequence = old.Header16.Sequence + 1;
1151     } while (!interlocked_cmpxchg128((__int64 *)list, new.s.Region, new.s.Alignment, (__int64 *)&old));
1152     return (SLIST_ENTRY *)((ULONG_PTR)old.Header16.NextEntry << 4);
1153 #else
1154     new.s.Next.Next = entry;
1155     do
1156     {
1157         old = *list;
1158         entry->Next = old.s.Next.Next;
1159         new.s.Depth = old.s.Depth + 1;
1160         new.s.Sequence = old.s.Sequence + 1;
1161     } while (interlocked_cmpxchg64((__int64 *)&list->Alignment, new.Alignment,
1162                                    old.Alignment) != old.Alignment);
1163     return old.s.Next.Next;
1164 #endif
1165 }
1166
1167 /*************************************************************************
1168  * RtlInterlockedPopEntrySList   [NTDLL.@]
1169  */
1170 PSLIST_ENTRY WINAPI RtlInterlockedPopEntrySList(PSLIST_HEADER list)
1171 {
1172     SLIST_HEADER old, new;
1173     PSLIST_ENTRY entry;
1174
1175 #ifdef _WIN64
1176     do
1177     {
1178         old = *list;
1179         if (!(entry = (SLIST_ENTRY *)((ULONG_PTR)old.Header16.NextEntry << 4))) return NULL;
1180         /* entry could be deleted by another thread */
1181         __TRY
1182         {
1183             new.Header16.NextEntry = (ULONG_PTR)entry->Next >> 4;
1184             new.Header16.Depth = old.Header16.Depth - 1;
1185             new.Header16.Sequence = old.Header16.Sequence + 1;
1186         }
1187         __EXCEPT_PAGE_FAULT
1188         {
1189         }
1190         __ENDTRY
1191     } while (!interlocked_cmpxchg128((__int64 *)list, new.s.Region, new.s.Alignment, (__int64 *)&old));
1192 #else
1193     do
1194     {
1195         old = *list;
1196         if (!(entry = old.s.Next.Next)) return NULL;
1197         /* entry could be deleted by another thread */
1198         __TRY
1199         {
1200             new.s.Next.Next = entry->Next;
1201             new.s.Depth = old.s.Depth - 1;
1202             new.s.Sequence = old.s.Sequence + 1;
1203         }
1204         __EXCEPT_PAGE_FAULT
1205         {
1206         }
1207         __ENDTRY
1208     } while (interlocked_cmpxchg64((__int64 *)&list->Alignment, new.Alignment,
1209                                    old.Alignment) != old.Alignment);
1210 #endif
1211     return entry;
1212 }
1213
1214 /*************************************************************************
1215  * RtlInterlockedPushListSListEx   [NTDLL.@]
1216  */
1217 PSLIST_ENTRY WINAPI RtlInterlockedPushListSListEx(PSLIST_HEADER list, PSLIST_ENTRY first,
1218                                                   PSLIST_ENTRY last, ULONG count)
1219 {
1220     SLIST_HEADER old, new;
1221
1222 #ifdef _WIN64
1223     new.Header16.NextEntry = (ULONG_PTR)first >> 4;
1224     do
1225     {
1226         old = *list;
1227         new.Header16.Depth = old.Header16.Depth + count;
1228         new.Header16.Sequence = old.Header16.Sequence + 1;
1229         last->Next = (SLIST_ENTRY *)((ULONG_PTR)old.Header16.NextEntry << 4);
1230     } while (!interlocked_cmpxchg128((__int64 *)list, new.s.Region, new.s.Alignment, (__int64 *)&old));
1231     return (SLIST_ENTRY *)((ULONG_PTR)old.Header16.NextEntry << 4);
1232 #else
1233     new.s.Next.Next = first;
1234     do
1235     {
1236         old = *list;
1237         new.s.Depth = old.s.Depth + count;
1238         new.s.Sequence = old.s.Sequence + 1;
1239         last->Next = old.s.Next.Next;
1240     } while (interlocked_cmpxchg64((__int64 *)&list->Alignment, new.Alignment,
1241                                    old.Alignment) != old.Alignment);
1242     return old.s.Next.Next;
1243 #endif
1244 }
1245
1246 /*************************************************************************
1247  * RtlInterlockedPushListSList   [NTDLL.@]
1248  */
1249 DEFINE_FASTCALL_WRAPPER(RtlInterlockedPushListSList, 16)
1250 PSLIST_ENTRY FASTCALL RtlInterlockedPushListSList(PSLIST_HEADER list, PSLIST_ENTRY first,
1251                                                   PSLIST_ENTRY last, ULONG count)
1252 {
1253     return RtlInterlockedPushListSListEx(list, first, last, count);
1254 }
1255
1256 /******************************************************************************
1257  *  RtlGetCompressionWorkSpaceSize              [NTDLL.@]
1258  */
1259 NTSTATUS WINAPI RtlGetCompressionWorkSpaceSize(USHORT format, PULONG compress_workspace,
1260                                                PULONG decompress_workspace)
1261 {
1262     FIXME("0x%04x, %p, %p: semi-stub\n", format, compress_workspace, decompress_workspace);
1263
1264     switch (format & ~COMPRESSION_ENGINE_MAXIMUM)
1265     {
1266         case COMPRESSION_FORMAT_LZNT1:
1267             if (compress_workspace)
1268             {
1269                 /* FIXME: The current implementation of RtlCompressBuffer does not use a
1270                  * workspace buffer, but Windows applications might expect a nonzero value. */
1271                 *compress_workspace = 16;
1272             }
1273             if (decompress_workspace)
1274                 *decompress_workspace = 0x1000;
1275             return STATUS_SUCCESS;
1276
1277         case COMPRESSION_FORMAT_NONE:
1278         case COMPRESSION_FORMAT_DEFAULT:
1279             return STATUS_INVALID_PARAMETER;
1280
1281         default:
1282             FIXME("format %u not implemented\n", format);
1283             return STATUS_UNSUPPORTED_COMPRESSION;
1284     }
1285 }
1286
1287 /* compress data using LZNT1, currently only a stub */
1288 static NTSTATUS lznt1_compress(UCHAR *src, ULONG src_size, UCHAR *dst, ULONG dst_size,
1289                                ULONG chunk_size, ULONG *final_size, UCHAR *workspace)
1290 {
1291     UCHAR *src_cur = src, *src_end = src + src_size;
1292     UCHAR *dst_cur = dst, *dst_end = dst + dst_size;
1293     ULONG block_size;
1294
1295     while (src_cur < src_end)
1296     {
1297         /* determine size of current chunk */
1298         block_size = min(0x1000, src_end - src_cur);
1299         if (dst_cur + sizeof(WORD) + block_size > dst_end)
1300             return STATUS_BUFFER_TOO_SMALL;
1301
1302         /* write (uncompressed) chunk header */
1303         *(WORD *)dst_cur = 0x3000 | (block_size - 1);
1304         dst_cur += sizeof(WORD);
1305
1306         /* write chunk content */
1307         memcpy(dst_cur, src_cur, block_size);
1308         dst_cur += block_size;
1309         src_cur += block_size;
1310     }
1311
1312     if (final_size)
1313         *final_size = dst_cur - dst;
1314
1315     return STATUS_SUCCESS;
1316 }
1317
1318 /******************************************************************************
1319  *  RtlCompressBuffer           [NTDLL.@]
1320  */
1321 NTSTATUS WINAPI RtlCompressBuffer(USHORT format, PUCHAR uncompressed, ULONG uncompressed_size,
1322                                   PUCHAR compressed, ULONG compressed_size, ULONG chunk_size,
1323                                   PULONG final_size, PVOID workspace)
1324 {
1325     FIXME("0x%04x, %p, %u, %p, %u, %u, %p, %p: semi-stub\n", format, uncompressed,
1326           uncompressed_size, compressed, compressed_size, chunk_size, final_size, workspace);
1327
1328     switch (format & ~COMPRESSION_ENGINE_MAXIMUM)
1329     {
1330         case COMPRESSION_FORMAT_LZNT1:
1331             return lznt1_compress(uncompressed, uncompressed_size, compressed,
1332                                   compressed_size, chunk_size, final_size, workspace);
1333
1334         case COMPRESSION_FORMAT_NONE:
1335         case COMPRESSION_FORMAT_DEFAULT:
1336             return STATUS_INVALID_PARAMETER;
1337
1338         default:
1339             FIXME("format %u not implemented\n", format);
1340             return STATUS_UNSUPPORTED_COMPRESSION;
1341     }
1342 }
1343
1344 /* decompress a single LZNT1 chunk */
1345 static UCHAR *lznt1_decompress_chunk(UCHAR *dst, ULONG dst_size, UCHAR *src, ULONG src_size)
1346 {
1347     UCHAR *src_cur = src, *src_end = src + src_size;
1348     UCHAR *dst_cur = dst, *dst_end = dst + dst_size;
1349     ULONG displacement_bits, length_bits;
1350     ULONG code_displacement, code_length;
1351     WORD flags, code;
1352
1353     while (src_cur < src_end && dst_cur < dst_end)
1354     {
1355         flags = 0x8000 | *src_cur++;
1356         while ((flags & 0xff00) && src_cur < src_end)
1357         {
1358             if (flags & 1)
1359             {
1360                 /* backwards reference */
1361                 if (src_cur + sizeof(WORD) > src_end)
1362                     return NULL;
1363
1364                 code = *(WORD *)src_cur;
1365                 src_cur += sizeof(WORD);
1366
1367                 /* find length / displacement bits */
1368                 for (displacement_bits = 12; displacement_bits > 4; displacement_bits--)
1369                     if ((1 << (displacement_bits - 1)) < dst_cur - dst) break;
1370
1371                 length_bits       = 16 - displacement_bits;
1372                 code_length       = (code & ((1 << length_bits) - 1)) + 3;
1373                 code_displacement = (code >> length_bits) + 1;
1374
1375                 if (dst_cur < dst + code_displacement)
1376                     return NULL;
1377
1378                 /* copy bytes of chunk - we can't use memcpy() since source and dest can
1379                  * be overlapping, and the same bytes can be repeated over and over again */
1380                 while (code_length--)
1381                 {
1382                     if (dst_cur >= dst_end) return dst_cur;
1383                     *dst_cur = *(dst_cur - code_displacement);
1384                     dst_cur++;
1385                 }
1386             }
1387             else
1388             {
1389                 /* uncompressed data */
1390                 if (dst_cur >= dst_end) return dst_cur;
1391                 *dst_cur++ = *src_cur++;
1392             }
1393             flags >>= 1;
1394         }
1395     }
1396
1397     return dst_cur;
1398 }
1399
1400 /* decompress data encoded with LZNT1 */
1401 static NTSTATUS lznt1_decompress(UCHAR *dst, ULONG dst_size, UCHAR *src, ULONG src_size,
1402                                  ULONG offset, ULONG *final_size, UCHAR *workspace)
1403 {
1404     UCHAR *src_cur = src, *src_end = src + src_size;
1405     UCHAR *dst_cur = dst, *dst_end = dst + dst_size;
1406     ULONG chunk_size, block_size;
1407     WORD chunk_header;
1408     UCHAR *ptr;
1409
1410     if (src_cur + sizeof(WORD) > src_end)
1411         return STATUS_BAD_COMPRESSION_BUFFER;
1412
1413     /* skip over chunks with a distance >= 0x1000 to the destination offset */
1414     while (offset >= 0x1000 && src_cur + sizeof(WORD) <= src_end)
1415     {
1416         chunk_header = *(WORD *)src_cur;
1417         src_cur += sizeof(WORD);
1418         if (!chunk_header) goto out;
1419         chunk_size = (chunk_header & 0xfff) + 1;
1420
1421         if (src_cur + chunk_size > src_end)
1422             return STATUS_BAD_COMPRESSION_BUFFER;
1423
1424         src_cur += chunk_size;
1425         offset  -= 0x1000;
1426     }
1427
1428     /* handle partially included chunk */
1429     if (offset && src_cur + sizeof(WORD) <= src_end)
1430     {
1431         chunk_header = *(WORD *)src_cur;
1432         src_cur += sizeof(WORD);
1433         if (!chunk_header) goto out;
1434         chunk_size = (chunk_header & 0xfff) + 1;
1435
1436         if (src_cur + chunk_size > src_end)
1437             return STATUS_BAD_COMPRESSION_BUFFER;
1438
1439         if (dst_cur >= dst_end)
1440             goto out;
1441
1442         if (chunk_header & 0x8000)
1443         {
1444             /* compressed chunk */
1445             if (!workspace) return STATUS_ACCESS_VIOLATION;
1446             ptr = lznt1_decompress_chunk(workspace, 0x1000, src_cur, chunk_size);
1447             if (!ptr) return STATUS_BAD_COMPRESSION_BUFFER;
1448             if (ptr - workspace > offset)
1449             {
1450                 block_size = min((ptr - workspace) - offset, dst_end - dst_cur);
1451                 memcpy(dst_cur, workspace + offset, block_size);
1452                 dst_cur += block_size;
1453             }
1454         }
1455         else
1456         {
1457             /* uncompressed chunk */
1458             if (chunk_size > offset)
1459             {
1460                 block_size = min(chunk_size - offset, dst_end - dst_cur);
1461                 memcpy(dst_cur, src_cur + offset, block_size);
1462                 dst_cur += block_size;
1463             }
1464         }
1465
1466         src_cur += chunk_size;
1467     }
1468
1469     /* handle remaining chunks */
1470     while (src_cur + sizeof(WORD) <= src_end)
1471     {
1472         chunk_header = *(WORD *)src_cur;
1473         src_cur += sizeof(WORD);
1474         if (!chunk_header) goto out;
1475         chunk_size = (chunk_header & 0xfff) + 1;
1476
1477         if (src_cur + chunk_size > src_end)
1478             return STATUS_BAD_COMPRESSION_BUFFER;
1479
1480         /* fill space with padding when the previous chunk was decompressed
1481          * to less than 4096 bytes. no padding is needed for the last chunk
1482          * or when the next chunk is truncated */
1483         block_size = ((dst_cur - dst) + offset) & 0xfff;
1484         if (block_size)
1485         {
1486             block_size = 0x1000 - block_size;
1487             if (dst_cur + block_size >= dst_end)
1488                 goto out;
1489             memset(dst_cur, 0, block_size);
1490             dst_cur += block_size;
1491         }
1492
1493         if (dst_cur >= dst_end)
1494             goto out;
1495
1496         if (chunk_header & 0x8000)
1497         {
1498             /* compressed chunk */
1499             dst_cur = lznt1_decompress_chunk(dst_cur, dst_end - dst_cur, src_cur, chunk_size);
1500             if (!dst_cur) return STATUS_BAD_COMPRESSION_BUFFER;
1501         }
1502         else
1503         {
1504             /* uncompressed chunk */
1505             block_size = min(chunk_size, dst_end - dst_cur);
1506             memcpy(dst_cur, src_cur, block_size);
1507             dst_cur += block_size;
1508         }
1509
1510         src_cur += chunk_size;
1511     }
1512
1513 out:
1514     if (final_size)
1515         *final_size = dst_cur - dst;
1516
1517     return STATUS_SUCCESS;
1518
1519 }
1520
1521 /******************************************************************************
1522  *  RtlDecompressFragment       [NTDLL.@]
1523  */
1524 NTSTATUS WINAPI RtlDecompressFragment(USHORT format, PUCHAR uncompressed, ULONG uncompressed_size,
1525                                PUCHAR compressed, ULONG compressed_size, ULONG offset,
1526                                PULONG final_size, PVOID workspace)
1527 {
1528     TRACE("0x%04x, %p, %u, %p, %u, %u, %p, %p\n", format, uncompressed,
1529           uncompressed_size, compressed, compressed_size, offset, final_size, workspace);
1530
1531     switch (format & ~COMPRESSION_ENGINE_MAXIMUM)
1532     {
1533         case COMPRESSION_FORMAT_LZNT1:
1534             return lznt1_decompress(uncompressed, uncompressed_size, compressed,
1535                                     compressed_size, offset, final_size, workspace);
1536
1537         case COMPRESSION_FORMAT_NONE:
1538         case COMPRESSION_FORMAT_DEFAULT:
1539             return STATUS_INVALID_PARAMETER;
1540
1541         default:
1542             FIXME("format %u not implemented\n", format);
1543             return STATUS_UNSUPPORTED_COMPRESSION;
1544     }
1545 }
1546
1547
1548 /******************************************************************************
1549  *  RtlDecompressBuffer         [NTDLL.@]
1550  */
1551 NTSTATUS WINAPI RtlDecompressBuffer(USHORT format, PUCHAR uncompressed, ULONG uncompressed_size,
1552                                     PUCHAR compressed, ULONG compressed_size, PULONG final_size)
1553 {
1554     TRACE("0x%04x, %p, %u, %p, %u, %p\n", format, uncompressed,
1555         uncompressed_size, compressed, compressed_size, final_size);
1556
1557     return RtlDecompressFragment(format, uncompressed, uncompressed_size,
1558                                  compressed, compressed_size, 0, final_size, NULL);
1559 }
1560
1561 /***********************************************************************
1562  *  RtlSetThreadErrorMode       [NTDLL.@]
1563  *
1564  * Set the thread local error mode.
1565  *
1566  * PARAMS
1567  *  mode    [I] The new error mode
1568  *  oldmode [O] Destination of the old error mode (may be NULL)
1569  *
1570  * RETURNS
1571  *  Success: STATUS_SUCCESS
1572  *  Failure: STATUS_INVALID_PARAMETER_1
1573  */
1574 NTSTATUS WINAPI RtlSetThreadErrorMode( DWORD mode, LPDWORD oldmode )
1575 {
1576     if (mode & ~0x70)
1577         return STATUS_INVALID_PARAMETER_1;
1578
1579     if (oldmode)
1580         *oldmode = NtCurrentTeb()->HardErrorDisabled;
1581
1582     NtCurrentTeb()->HardErrorDisabled = mode;
1583     return STATUS_SUCCESS;
1584 }
1585
1586 /***********************************************************************
1587  *  RtlGetThreadErrorMode       [NTDLL.@]
1588  *
1589  * Get the thread local error mode.
1590  *
1591  * PARAMS
1592  *  None.
1593  *
1594  * RETURNS
1595  *  The current thread local error mode.
1596  */
1597 DWORD WINAPI RtlGetThreadErrorMode( void )
1598 {
1599     return NtCurrentTeb()->HardErrorDisabled;
1600 }
1601
1602 /******************************************************************************
1603  * RtlGetCurrentTransaction [NTDLL.@]
1604  */
1605 HANDLE WINAPI RtlGetCurrentTransaction(void)
1606 {
1607     FIXME("() :stub\n");
1608     return NULL;
1609 }
1610
1611 /******************************************************************************
1612  * RtlSetCurrentTransaction [NTDLL.@]
1613  */
1614 BOOL WINAPI RtlSetCurrentTransaction(HANDLE new_transaction)
1615 {
1616     FIXME("(%p) :stub\n", new_transaction);
1617     return FALSE;
1618 }
1619
1620 /**********************************************************************
1621  *           RtlGetCurrentProcessorNumberEx [NTDLL.@]
1622  */
1623 void WINAPI RtlGetCurrentProcessorNumberEx(PROCESSOR_NUMBER *processor)
1624 {
1625     FIXME("(%p) :semi-stub\n", processor);
1626     processor->Group = 0;
1627     processor->Number = NtGetCurrentProcessorNumber();
1628     processor->Reserved = 0;
1629 }
1630
1631 /***********************************************************************
1632  *           RtlInitializeGenericTableAvl  (NTDLL.@)
1633  */
1634 void WINAPI RtlInitializeGenericTableAvl(PRTL_AVL_TABLE table, PRTL_AVL_COMPARE_ROUTINE compare,
1635                                          PRTL_AVL_ALLOCATE_ROUTINE allocate, PRTL_AVL_FREE_ROUTINE free, void *context)
1636 {
1637     FIXME("%p %p %p %p %p: stub\n", table, compare, allocate, free, context);
1638 }
1639
1640 /***********************************************************************
1641  *           RtlInsertElementGenericTableAvl  (NTDLL.@)
1642  */
1643 void WINAPI RtlInsertElementGenericTableAvl(PRTL_AVL_TABLE table, void *buffer, ULONG size, BOOL *element)
1644 {
1645     FIXME("%p %p %u %p: stub\n", table, buffer, size, element);
1646 }
1647
1648 /*********************************************************************
1649  *           RtlQueryPackageIdentity [NTDLL.@]
1650  */
1651 NTSTATUS WINAPI RtlQueryPackageIdentity(HANDLE token, WCHAR *fullname, SIZE_T *fullname_size,
1652                                         WCHAR *appid, SIZE_T *appid_size, BOOLEAN *packaged)
1653 {
1654     FIXME("(%p, %p, %p, %p, %p, %p): stub\n", token, fullname, fullname_size, appid, appid_size, packaged);
1655     return STATUS_NOT_FOUND;
1656 }