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 <stdarg.h>
  27
  28 #include "ntstatus.h"
  29 #define NONAMELESSUNION
  30 #define NONAMELESSSTRUCT
  31 #define WIN32_NO_STATUS
  32 #include "winsock2.h"
  33 #include "windef.h"
  34 #include "winternl.h"
  35 #include "wine/debug.h"
  36 #include "wine/exception.h"
  37 #include "ntdll_misc.h"
  38 #include "in6addr.h"
  39 #include "ddk/ntddk.h"
  40
  41 WINE_DEFAULT_DEBUG_CHANNEL(ntdll);
  42
  43 /* CRC polynomial 0xedb88320 */
  44 static const DWORD CRC_table[256] =
  45 {
  46     0x00000000, 0x77073096, 0xee0e612c, 0x990951ba, 0x076dc419, 0x706af48f,
  47     0xe963a535, 0x9e6495a3, 0x0edb8832, 0x79dcb8a4, 0xe0d5e91e, 0x97d2d988,
  48     0x09b64c2b, 0x7eb17cbd, 0xe7b82d07, 0x90bf1d91, 0x1db71064, 0x6ab020f2,
  49     0xf3b97148, 0x84be41de, 0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7,
  50     0x136c9856, 0x646ba8c0, 0xfd62f97a, 0x8a65c9ec, 0x14015c4f, 0x63066cd9,
  51     0xfa0f3d63, 0x8d080df5, 0x3b6e20c8, 0x4c69105e, 0xd56041e4, 0xa2677172,
  52     0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b, 0x35b5a8fa, 0x42b2986c,
  53     0xdbbbc9d6, 0xacbcf940, 0x32d86ce3, 0x45df5c75, 0xdcd60dcf, 0xabd13d59,
  54     0x26d930ac, 0x51de003a, 0xc8d75180, 0xbfd06116, 0x21b4f4b5, 0x56b3c423,
  55     0xcfba9599, 0xb8bda50f, 0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924,
  56     0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d, 0x76dc4190, 0x01db7106,
  57     0x98d220bc, 0xefd5102a, 0x71b18589, 0x06b6b51f, 0x9fbfe4a5, 0xe8b8d433,
  58     0x7807c9a2, 0x0f00f934, 0x9609a88e, 0xe10e9818, 0x7f6a0dbb, 0x086d3d2d,
  59     0x91646c97, 0xe6635c01, 0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e,
  60     0x6c0695ed, 0x1b01a57b, 0x8208f4c1, 0xf50fc457, 0x65b0d9c6, 0x12b7e950,
  61     0x8bbeb8ea, 0xfcb9887c, 0x62dd1ddf, 0x15da2d49, 0x8cd37cf3, 0xfbd44c65,
  62     0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2, 0x4adfa541, 0x3dd895d7,
  63     0xa4d1c46d, 0xd3d6f4fb, 0x4369e96a, 0x346ed9fc, 0xad678846, 0xda60b8d0,
  64     0x44042d73, 0x33031de5, 0xaa0a4c5f, 0xdd0d7cc9, 0x5005713c, 0x270241aa,
  65     0xbe0b1010, 0xc90c2086, 0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f,
  66     0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4, 0x59b33d17, 0x2eb40d81,
  67     0xb7bd5c3b, 0xc0ba6cad, 0xedb88320, 0x9abfb3b6, 0x03b6e20c, 0x74b1d29a,
  68     0xead54739, 0x9dd277af, 0x04db2615, 0x73dc1683, 0xe3630b12, 0x94643b84,
  69     0x0d6d6a3e, 0x7a6a5aa8, 0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1,
  70     0xf00f9344, 0x8708a3d2, 0x1e01f268, 0x6906c2fe, 0xf762575d, 0x806567cb,
  71     0x196c3671, 0x6e6b06e7, 0xfed41b76, 0x89d32be0, 0x10da7a5a, 0x67dd4acc,
  72     0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5, 0xd6d6a3e8, 0xa1d1937e,
  73     0x38d8c2c4, 0x4fdff252, 0xd1bb67f1, 0xa6bc5767, 0x3fb506dd, 0x48b2364b,
  74     0xd80d2bda, 0xaf0a1b4c, 0x36034af6, 0x41047a60, 0xdf60efc3, 0xa867df55,
  75     0x316e8eef, 0x4669be79, 0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236,
  76     0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f, 0xc5ba3bbe, 0xb2bd0b28,
  77     0x2bb45a92, 0x5cb36a04, 0xc2d7ffa7, 0xb5d0cf31, 0x2cd99e8b, 0x5bdeae1d,
  78     0x9b64c2b0, 0xec63f226, 0x756aa39c, 0x026d930a, 0x9c0906a9, 0xeb0e363f,
  79     0x72076785, 0x05005713, 0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38,
  80     0x92d28e9b, 0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21, 0x86d3d2d4, 0xf1d4e242,
  81     0x68ddb3f8, 0x1fda836e, 0x81be16cd, 0xf6b9265b, 0x6fb077e1, 0x18b74777,
  82     0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c, 0x8f659eff, 0xf862ae69,
  83     0x616bffd3, 0x166ccf45, 0xa00ae278, 0xd70dd2ee, 0x4e048354, 0x3903b3c2,
  84     0xa7672661, 0xd06016f7, 0x4969474d, 0x3e6e77db, 0xaed16a4a, 0xd9d65adc,
  85     0x40df0b66, 0x37d83bf0, 0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9,
  86     0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6, 0xbad03605, 0xcdd70693,
  87     0x54de5729, 0x23d967bf, 0xb3667a2e, 0xc4614ab8, 0x5d681b02, 0x2a6f2b94,
  88     0xb40bbe37, 0xc30c8ea1, 0x5a05df1b, 0x2d02ef8d
  89 };
  90
  91 static const int hex_table[] = {
  92     -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 0x00-0x0F */
  93     -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 0x10-0x1F */
  94     -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 0x20-0x2F */
  95      0,  1,  2,  3,  4,  5,  6,  7,  8,  9, -1, -1, -1, -1, -1, -1, /* 0x30-0x3F */
  96     -1, 10, 11, 12, 13, 14, 15, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 0x40-0x4F */
  97     -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 0x50-0x5F */
  98     -1, 10, 11, 12, 13, 14, 15                                      /* 0x60-0x66 */
  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   _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     _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 void WINAPI RtlInitializeGenericTable(RTL_GENERIC_TABLE *table, PRTL_GENERIC_COMPARE_ROUTINE compare,
 406                                       PRTL_GENERIC_ALLOCATE_ROUTINE allocate, PRTL_GENERIC_FREE_ROUTINE free,
 407                                       void *context)
 408 {
 409     FIXME("(%p, %p, %p, %p, %p) stub!\n", table, compare, allocate, free, context);
 410 }
 411
 412 /******************************************************************************
 413  *  RtlEnumerateGenericTableWithoutSplaying           [NTDLL.@]
 414  */
 415 void * WINAPI RtlEnumerateGenericTableWithoutSplaying(RTL_GENERIC_TABLE *table, void *previous)
 416 {
 417     static int warn_once;
 418
 419     if (!warn_once++)
 420         FIXME("(%p, %p) stub!\n", table, previous);
 421     return NULL;
 422 }
 423
 424 /******************************************************************************
 425  *  RtlNumberGenericTableElements           [NTDLL.@]
 426  */
 427 ULONG WINAPI RtlNumberGenericTableElements(RTL_GENERIC_TABLE *table)
 428 {
 429     FIXME("(%p) stub!\n", table);
 430     return 0;
 431 }
 432
 433 /******************************************************************************
 434  *  RtlMoveMemory   [NTDLL.@]
 435  *
 436  * Move a block of memory that may overlap.
 437  *
 438  * PARAMS
 439  *  Destination [O] End destination for block
 440  *  Source      [O] Where to start copying from
 441  *  Length      [I] Number of bytes to copy
 442  *
 443  * RETURNS
 444  *  Nothing.
 445  */
 446 #undef RtlMoveMemory
 447 VOID WINAPI RtlMoveMemory( void *Destination, const void *Source, SIZE_T Length )
 448 {
 449     memmove(Destination, Source, Length);
 450 }
 451
 452 /******************************************************************************
 453  *  RtlFillMemory   [NTDLL.@]
 454  *
 455  * Set a block of memory with a value.
 456  *
 457  * PARAMS
 458  *  Destination [O] Block to fill
 459  *  Length      [I] Number of bytes to fill
 460  *  Fill        [I] Value to set
 461  *
 462  * RETURNS
 463  *  Nothing.
 464  */
 465 #undef RtlFillMemory
 466 VOID WINAPI RtlFillMemory( VOID *Destination, SIZE_T Length, BYTE Fill )
 467 {
 468     memset(Destination, Fill, Length);
 469 }
 470
 471 /******************************************************************************
 472  *  RtlZeroMemory   [NTDLL.@]
 473  *
 474  * Set a block of memory with 0's.
 475  *
 476  * PARAMS
 477  *  Destination [O] Block to fill
 478  *  Length      [I] Number of bytes to fill
 479  *
 480  * RETURNS
 481  *  Nothing.
 482  */
 483 #undef RtlZeroMemory
 484 VOID WINAPI RtlZeroMemory( VOID *Destination, SIZE_T Length )
 485 {
 486     memset(Destination, 0, Length);
 487 }
 488
 489 /******************************************************************************
 490  *  RtlCompareMemory   [NTDLL.@]
 491  *
 492  * Compare one block of memory with another
 493  *
 494  * PARAMS
 495  *  Source1 [I] Source block
 496  *  Source2 [I] Block to compare to Source1
 497  *  Length  [I] Number of bytes to compare
 498  *
 499  * RETURNS
 500  *  The length of the first byte at which Source1 and Source2 differ, or Length
 501  *  if they are the same.
 502  */
 503 SIZE_T WINAPI RtlCompareMemory( const VOID *Source1, const VOID *Source2, SIZE_T Length)
 504 {
 505     SIZE_T i;
 506     for(i=0; (i<Length) && (((const BYTE*)Source1)[i]==((const BYTE*)Source2)[i]); i++);
 507     return i;
 508 }
 509
 510 /******************************************************************************
 511  *  RtlCompareMemoryUlong   [NTDLL.@]
 512  *
 513  * Compare a block of memory with a value, a ULONG at a time
 514  *
 515  * PARAMS
 516  *  Source1 [I] Source block. This must be ULONG aligned
 517  *  Length  [I] Number of bytes to compare. This should be a multiple of 4
 518  *  dwVal   [I] Value to compare to
 519  *
 520  * RETURNS
 521  *  The byte position of the first byte at which Source1 is not dwVal.
 522  */
 523 SIZE_T WINAPI RtlCompareMemoryUlong(VOID *Source1, SIZE_T Length, ULONG dwVal)
 524 {
 525     SIZE_T i;
 526     for(i = 0; i < Length/sizeof(ULONG) && ((ULONG *)Source1)[i] == dwVal; i++);
 527     return i * sizeof(ULONG);
 528 }
 529
 530 /******************************************************************************
 531  *  RtlCopyMemory   [NTDLL.@]
 532  */
 533 #undef RtlCopyMemory
 534 void WINAPI RtlCopyMemory(void *dest, const void *src, SIZE_T len)
 535 {
 536     memcpy(dest, src, len);
 537 }
 538
 539 /******************************************************************************
 540  *  RtlAssert                           [NTDLL.@]
 541  *
 542  * Fail a debug assertion.
 543  *
 544  * RETURNS
 545  *  Nothing. This call does not return control to its caller.
 546  *
 547  * NOTES
 548  * Not implemented in non-debug versions.
 549  */
 550 void WINAPI RtlAssert(void *assertion, void *filename, ULONG linenumber, char *message)
 551 {
 552     FIXME("(%s, %s, %u, %s): stub\n", debugstr_a((char*)assertion), debugstr_a((char*)filename),
 553         linenumber, debugstr_a(message));
 554 }
 555
 556 /*************************************************************************
 557  * RtlFillMemoryUlong   [NTDLL.@]
 558  *
 559  * Fill memory with a 32 bit (dword) value.
 560  *
 561  * PARAMS
 562  *  lpDest  [I] Bitmap pointer
 563  *  ulCount [I] Number of dwords to write
 564  *  ulValue [I] Value to fill with
 565  *
 566  * RETURNS
 567  *  Nothing.
 568  */
 569 VOID WINAPI RtlFillMemoryUlong(ULONG* lpDest, ULONG ulCount, ULONG ulValue)
 570 {
 571   TRACE("(%p,%d,%d)\n", lpDest, ulCount, ulValue);
 572
 573   ulCount /= sizeof(ULONG);
 574   while(ulCount--)
 575     *lpDest++ = ulValue;
 576 }
 577
 578 /*********************************************************************
 579  *                  RtlComputeCrc32   [NTDLL.@]
 580  *
 581  * Calculate the CRC32 checksum of a block of bytes
 582  *
 583  * PARAMS
 584  *  dwInitial [I] Initial CRC value
 585  *  pData     [I] Data block
 586  *  iLen      [I] Length of the byte block
 587  *
 588  * RETURNS
 589  *  The cumulative CRC32 of dwInitial and iLen bytes of the pData block.
 590  */
 591 DWORD WINAPI RtlComputeCrc32(DWORD dwInitial, const BYTE *pData, INT iLen)
 592 {
 593   DWORD crc = ~dwInitial;
 594
 595   TRACE("(%d,%p,%d)\n", dwInitial, pData, iLen);
 596
 597   while (iLen > 0)
 598   {
 599     crc = CRC_table[(crc ^ *pData) & 0xff] ^ (crc >> 8);
 600     pData++;
 601     iLen--;
 602   }
 603   return ~crc;
 604 }
 605
 606
 607 /*************************************************************************
 608  * RtlUlonglongByteSwap    [NTDLL.@]
 609  *
 610  * Swap the bytes of an unsigned long long value.
 611  *
 612  * PARAMS
 613  *  i [I] Value to swap bytes of
 614  *
 615  * RETURNS
 616  *  The value with its bytes swapped.
 617  */
 618 ULONGLONG __cdecl RtlUlonglongByteSwap(ULONGLONG i)
 619 {
 620   return ((ULONGLONG)RtlUlongByteSwap(i) << 32) | RtlUlongByteSwap(i>>32);
 621 }
 622
 623 /*************************************************************************
 624  * RtlUlongByteSwap    [NTDLL.@]
 625  *
 626  * Swap the bytes of an unsigned int value.
 627  *
 628  * NOTES
 629  *  ix86 version takes argument in %ecx. Other systems use the inline version.
 630  */
 631 #ifdef __i386__
 632 __ASM_GLOBAL_FUNC(NTDLL_RtlUlongByteSwap,
 633                   "movl %ecx,%eax\n\t"
 634                   "bswap %eax\n\t"
 635                   "ret")
 636 #endif
 637
 638 /*************************************************************************
 639  * RtlUshortByteSwap    [NTDLL.@]
 640  *
 641  * Swap the bytes of an unsigned short value.
 642  *
 643  * NOTES
 644  *  i386 version takes argument in %cx. Other systems use the inline version.
 645  */
 646 #ifdef __i386__
 647 __ASM_GLOBAL_FUNC(NTDLL_RtlUshortByteSwap,
 648                   "movb %ch,%al\n\t"
 649                   "movb %cl,%ah\n\t"
 650                   "ret")
 651 #endif
 652
 653
 654 /*************************************************************************
 655  * RtlUniform   [NTDLL.@]
 656  *
 657  * Generates an uniform random number
 658  *
 659  * PARAMS
 660  *  seed [O] The seed of the Random function
 661  *
 662  * RETURNS
 663  *  It returns a random number uniformly distributed over [0..MAXLONG-1].
 664  *
 665  * NOTES
 666  *  Generates an uniform random number using D.H. Lehmer's 1948 algorithm.
 667  *  In our case the algorithm is:
 668  *
 669  *|  result = (*seed * 0x7fffffed + 0x7fffffc3) % MAXLONG;
 670  *|
 671  *|  *seed = result;
 672  *
 673  * DIFFERENCES
 674  *  The native documentation states that the random number is
 675  *  uniformly distributed over [0..MAXLONG]. In reality the native
 676  *  function and our function return a random number uniformly
 677  *  distributed over [0..MAXLONG-1].
 678  */
 679 ULONG WINAPI RtlUniform (PULONG seed)
 680 {
 681     ULONG result;
 682
 683    /*
 684     * Instead of the algorithm stated above, we use the algorithm
 685     * below, which is totally equivalent (see the tests), but does
 686     * not use a division and therefore is faster.
 687     */
 688     result = *seed * 0xffffffed + 0x7fffffc3;
 689     if (result == 0xffffffff || result == 0x7ffffffe) {
 690         result = (result + 2) & MAXLONG;
 691     } else if (result == 0x7fffffff) {
 692         result = 0;
 693     } else if ((result & 0x80000000) == 0) {
 694         result = result + (~result & 1);
 695     } else {
 696         result = (result + (result & 1)) & MAXLONG;
 697     } /* if */
 698     *seed = result;
 699     return result;
 700 }
 701
 702
 703 /*************************************************************************
 704  * RtlRandom   [NTDLL.@]
 705  *
 706  * Generates a random number
 707  *
 708  * PARAMS
 709  *  seed [O] The seed of the Random function
 710  *
 711  * RETURNS
 712  *  It returns a random number distributed over [0..MAXLONG-1].
 713  */
 714 ULONG WINAPI RtlRandom (PULONG seed)
 715 {
 716     static ULONG saved_value[128] =
 717     { /*   0 */ 0x4c8bc0aa, 0x4c022957, 0x2232827a, 0x2f1e7626, 0x7f8bdafb, 0x5c37d02a, 0x0ab48f72, 0x2f0c4ffa,
 718       /*   8 */ 0x290e1954, 0x6b635f23, 0x5d3885c0, 0x74b49ff8, 0x5155fa54, 0x6214ad3f, 0x111e9c29, 0x242a3a09,
 719       /*  16 */ 0x75932ae1, 0x40ac432e, 0x54f7ba7a, 0x585ccbd5, 0x6df5c727, 0x0374dad1, 0x7112b3f1, 0x735fc311,
 720       /*  24 */ 0x404331a9, 0x74d97781, 0x64495118, 0x323e04be, 0x5974b425, 0x4862e393, 0x62389c1d, 0x28a68b82,
 721       /*  32 */ 0x0f95da37, 0x7a50bbc6, 0x09b0091c, 0x22cdb7b4, 0x4faaed26, 0x66417ccd, 0x189e4bfa, 0x1ce4e8dd,
 722       /*  40 */ 0x5274c742, 0x3bdcf4dc, 0x2d94e907, 0x32eac016, 0x26d33ca3, 0x60415a8a, 0x31f57880, 0x68c8aa52,
 723       /*  48 */ 0x23eb16da, 0x6204f4a1, 0x373927c1, 0x0d24eb7c, 0x06dd7379, 0x2b3be507, 0x0f9c55b1, 0x2c7925eb,
 724       /*  56 */ 0x36d67c9a, 0x42f831d9, 0x5e3961cb, 0x65d637a8, 0x24bb3820, 0x4d08e33d, 0x2188754f, 0x147e409e,
 725       /*  64 */ 0x6a9620a0, 0x62e26657, 0x7bd8ce81, 0x11da0abb, 0x5f9e7b50, 0x23e444b6, 0x25920c78, 0x5fc894f0,
 726       /*  72 */ 0x5e338cbb, 0x404237fd, 0x1d60f80f, 0x320a1743, 0x76013d2b, 0x070294ee, 0x695e243b, 0x56b177fd,
 727       /*  80 */ 0x752492e1, 0x6decd52f, 0x125f5219, 0x139d2e78, 0x1898d11e, 0x2f7ee785, 0x4db405d8, 0x1a028a35,
 728       /*  88 */ 0x63f6f323, 0x1f6d0078, 0x307cfd67, 0x3f32a78a, 0x6980796c, 0x462b3d83, 0x34b639f2, 0x53fce379,
 729       /*  96 */ 0x74ba50f4, 0x1abc2c4b, 0x5eeaeb8d, 0x335a7a0d, 0x3973dd20, 0x0462d66b, 0x159813ff, 0x1e4643fd,
 730       /* 104 */ 0x06bc5c62, 0x3115e3fc, 0x09101613, 0x47af2515, 0x4f11ec54, 0x78b99911, 0x3db8dd44, 0x1ec10b9b,
 731       /* 112 */ 0x5b5506ca, 0x773ce092, 0x567be81a, 0x5475b975, 0x7a2cde1a, 0x494536f5, 0x34737bb4, 0x76d9750b,
 732       /* 120 */ 0x2a1f6232, 0x2e49644d, 0x7dddcbe7, 0x500cebdb, 0x619dab9e, 0x48c626fe, 0x1cda3193, 0x52dabe9d };
 733     ULONG rand;
 734     int pos;
 735     ULONG result;
 736
 737     rand = (*seed * 0x7fffffed + 0x7fffffc3) % 0x7fffffff;
 738     *seed = (rand * 0x7fffffed + 0x7fffffc3) % 0x7fffffff;
 739     pos = *seed & 0x7f;
 740     result = saved_value[pos];
 741     saved_value[pos] = rand;
 742     return(result);
 743 }
 744
 745
 746 /*************************************************************************
 747  * RtlRandomEx   [NTDLL.@]
 748  */
 749 ULONG WINAPI RtlRandomEx( ULONG *seed )
 750 {
 751     WARN( "semi-stub: should use a different algorithm\n" );
 752     return RtlRandom( seed );
 753 }
 754
 755 /*************************************************************************
 756  * RtlAreAllAccessesGranted   [NTDLL.@]
 757  *
 758  * Check if all desired accesses are granted
 759  *
 760  * RETURNS
 761  *  TRUE: All desired accesses are granted
 762  *  FALSE: Otherwise
 763  */
 764 BOOLEAN WINAPI RtlAreAllAccessesGranted(
 765     ACCESS_MASK GrantedAccess,
 766     ACCESS_MASK DesiredAccess)
 767 {
 768     return (GrantedAccess & DesiredAccess) == DesiredAccess;
 769 }
 770
 771
 772 /*************************************************************************
 773  * RtlAreAnyAccessesGranted   [NTDLL.@]
 774  *
 775  * Check if at least one of the desired accesses is granted
 776  *
 777  * PARAMS
 778  *  GrantedAccess [I] Access mask of granted accesses
 779  *  DesiredAccess [I] Access mask of desired accesses
 780  *
 781  * RETURNS
 782  *  TRUE: At least one of the desired accesses is granted
 783  *  FALSE: Otherwise
 784  */
 785 BOOLEAN WINAPI RtlAreAnyAccessesGranted(
 786     ACCESS_MASK GrantedAccess,
 787     ACCESS_MASK DesiredAccess)
 788 {
 789     return (GrantedAccess & DesiredAccess) != 0;
 790 }
 791
 792
 793 /*************************************************************************
 794  * RtlMapGenericMask   [NTDLL.@]
 795  *
 796  * Determine the nongeneric access rights specified by an access mask
 797  *
 798  * RETURNS
 799  *  Nothing.
 800  */
 801 void WINAPI RtlMapGenericMask(
 802     PACCESS_MASK AccessMask,
 803     const GENERIC_MAPPING *GenericMapping)
 804 {
 805     if (*AccessMask & GENERIC_READ) {
 806         *AccessMask |= GenericMapping->GenericRead;
 807     } /* if */
 808
 809     if (*AccessMask & GENERIC_WRITE) {
 810         *AccessMask |= GenericMapping->GenericWrite;
 811     } /* if */
 812
 813     if (*AccessMask & GENERIC_EXECUTE) {
 814         *AccessMask |= GenericMapping->GenericExecute;
 815     } /* if */
 816
 817     if (*AccessMask & GENERIC_ALL) {
 818         *AccessMask |= GenericMapping->GenericAll;
 819     } /* if */
 820
 821     *AccessMask &= 0x0FFFFFFF;
 822 }
 823
 824
 825 /*************************************************************************
 826  * RtlCopyLuid   [NTDLL.@]
 827  *
 828  * Copy a local unique ID.
 829  *
 830  * PARAMS
 831  *  LuidDest [O] Destination for the copied Luid
 832  *  LuidSrc  [I] Source Luid to copy to LuidDest
 833  *
 834  * RETURNS
 835  *  Nothing.
 836  */
 837 void WINAPI RtlCopyLuid (PLUID LuidDest, const LUID *LuidSrc)
 838 {
 839     *LuidDest = *LuidSrc;
 840 }
 841
 842
 843 /*************************************************************************
 844  * RtlEqualLuid   [NTDLL.@]
 845  *
 846  * Compare two local unique IDs.
 847  *
 848  * PARAMS
 849  *  Luid1 [I] First Luid to compare to Luid2
 850  *  Luid2 [I] Second Luid to compare to Luid1
 851  *
 852  * RETURNS
 853  *  TRUE: The two LUIDs are equal.
 854  *  FALSE: Otherwise
 855  */
 856 BOOLEAN WINAPI RtlEqualLuid (const LUID *Luid1, const LUID *Luid2)
 857 {
 858   return (Luid1->LowPart ==  Luid2->LowPart && Luid1->HighPart == Luid2->HighPart);
 859 }
 860
 861
 862 /*************************************************************************
 863  * RtlCopyLuidAndAttributesArray   [NTDLL.@]
 864  *
 865  * Copy an array of local unique IDs and attributes.
 866  *
 867  * PARAMS
 868  *  Count [I] Number of Luid/attributes in Src
 869  *  Src   [I] Source Luid/attributes to copy
 870  *  Dest  [O] Destination for copied Luid/attributes
 871  *
 872  * RETURNS
 873  *  Nothing.
 874  *
 875  * NOTES
 876  *  Dest must be large enough to hold Src.
 877  */
 878 void WINAPI RtlCopyLuidAndAttributesArray(
 879     ULONG Count,
 880     const LUID_AND_ATTRIBUTES *Src,
 881     PLUID_AND_ATTRIBUTES Dest)
 882 {
 883     ULONG i;
 884
 885     for (i = 0; i < Count; i++) Dest[i] = Src[i];
 886 }
 887
 888 static BOOL parse_ipv4_component(const WCHAR **str, BOOL strict, ULONG *value)
 889 {
 890     int base = 10, d;
 891     WCHAR c;
 892     ULONG cur_value, prev_value = 0;
 893     BOOL success = FALSE;
 894
 895     if (**str == '.')
 896     {
 897         *str += 1;
 898         return FALSE;
 899     }
 900
 901     if ((*str)[0] == '0')
 902     {
 903         if ((*str)[1] == 'x' || (*str)[1] == 'X')
 904         {
 905             *str += 2;
 906             if (strict) return FALSE;
 907             base = 16;
 908         }
 909         else if ((*str)[1] >= '0' && (*str)[1] <= '9')
 910         {
 911             *str += 1;
 912             if (strict) return FALSE;
 913             base = 8;
 914         }
 915     }
 916
 917     for (cur_value = 0; **str; *str += 1)
 918     {
 919         c = **str;
 920         if (c >= ARRAY_SIZE(hex_table)) break;
 921         d = hex_table[c];
 922         if (d == -1 || d >= base) break;
 923         cur_value = cur_value * base + d;
 924         success = TRUE;
 925         if (cur_value < prev_value) return FALSE; /* overflow */
 926         prev_value = cur_value;
 927     }
 928
 929     if (success) *value = cur_value;
 930     return success;
 931 }
 932
 933 static NTSTATUS ipv4_string_to_address(const WCHAR *str, BOOL strict,
 934                                        const WCHAR **terminator, IN_ADDR *address, USHORT *port)
 935 {
 936     ULONG fields[4];
 937     int n = 0;
 938
 939     for (;;)
 940     {
 941         if (!parse_ipv4_component(&str, strict, &fields[n]))
 942             goto error;
 943         n++;
 944         if (*str != '.')
 945             break;
 946         if (n == 4)
 947             goto error;
 948         str++;
 949     }
 950
 951     if (strict && n < 4)
 952         goto error;
 953
 954     switch (n)
 955     {
 956         case 4:
 957             if (fields[0] > 0xFF || fields[1] > 0xFF || fields[2] > 0xFF || fields[3] > 0xFF)
 958                 goto error;
 959             address->S_un.S_un_b.s_b1 = fields[0];
 960             address->S_un.S_un_b.s_b2 = fields[1];
 961             address->S_un.S_un_b.s_b3 = fields[2];
 962             address->S_un.S_un_b.s_b4 = fields[3];
 963             break;
 964         case 3:
 965             if (fields[0] > 0xFF || fields[1] > 0xFF || fields[2] > 0xFFFF)
 966                 goto error;
 967             address->S_un.S_un_b.s_b1 = fields[0];
 968             address->S_un.S_un_b.s_b2 = fields[1];
 969             address->S_un.S_un_b.s_b3 = (fields[2] & 0xFF00) >> 8;
 970             address->S_un.S_un_b.s_b4 = (fields[2] & 0x00FF);
 971             break;
 972         case 2:
 973             if (fields[0] > 0xFF || fields[1] > 0xFFFFFF)
 974                 goto error;
 975             address->S_un.S_un_b.s_b1 = fields[0];
 976             address->S_un.S_un_b.s_b2 = (fields[1] & 0xFF0000) >> 16;
 977             address->S_un.S_un_b.s_b3 = (fields[1] & 0x00FF00) >> 8;
 978             address->S_un.S_un_b.s_b4 = (fields[1] & 0x0000FF);
 979             break;
 980         case 1:
 981             address->S_un.S_un_b.s_b1 = (fields[0] & 0xFF000000) >> 24;
 982             address->S_un.S_un_b.s_b2 = (fields[0] & 0x00FF0000) >> 16;
 983             address->S_un.S_un_b.s_b3 = (fields[0] & 0x0000FF00) >> 8;
 984             address->S_un.S_un_b.s_b4 = (fields[0] & 0x000000FF);
 985             break;
 986         default:
 987             goto error;
 988     }
 989
 990     if (terminator) *terminator = str;
 991
 992     if (*str == ':')
 993     {
 994         str++;
 995         if (!parse_ipv4_component(&str, FALSE, &fields[0]))
 996             goto error;
 997         if (!fields[0] || fields[0] > 0xFFFF || *str)
 998             goto error;
 999         if (port)
1000         {
1001             *port = htons(fields[0]);
1002             if (terminator) *terminator = str;
1003         }
1004     }
1005
1006     if (!terminator && *str)
1007         return STATUS_INVALID_PARAMETER;
1008     return STATUS_SUCCESS;
1009
1010 error:
1011     if (terminator) *terminator = str;
1012     return STATUS_INVALID_PARAMETER;
1013 }
1014
1015 /***********************************************************************
1016  * RtlIpv4StringToAddressExW [NTDLL.@]
1017  */
1018 NTSTATUS WINAPI RtlIpv4StringToAddressExW(const WCHAR *str, BOOLEAN strict, IN_ADDR *address, USHORT *port)
1019 {
1020     TRACE("(%s, %u, %p, %p)\n", debugstr_w(str), strict, address, port);
1021     if (!str || !address || !port) return STATUS_INVALID_PARAMETER;
1022     return ipv4_string_to_address(str, strict, NULL, address, port);
1023 }
1024
1025 /***********************************************************************
1026  * RtlIpv4StringToAddressW [NTDLL.@]
1027  */
1028 NTSTATUS WINAPI RtlIpv4StringToAddressW(const WCHAR *str, BOOLEAN strict, const WCHAR **terminator, IN_ADDR *address)
1029 {
1030     TRACE("(%s, %u, %p, %p)\n", debugstr_w(str), strict, terminator, address);
1031     return ipv4_string_to_address(str, strict, terminator, address, NULL);
1032 }
1033
1034 /***********************************************************************
1035  * RtlIpv4StringToAddressExA [NTDLL.@]
1036  */
1037 NTSTATUS WINAPI RtlIpv4StringToAddressExA(const char *str, BOOLEAN strict, IN_ADDR *address, USHORT *port)
1038 {
1039     WCHAR wstr[32];
1040
1041     TRACE("(%s, %u, %p, %p)\n", debugstr_a(str), strict, address, port);
1042
1043     if (!str || !address || !port)
1044         return STATUS_INVALID_PARAMETER;
1045
1046     RtlMultiByteToUnicodeN(wstr, sizeof(wstr), NULL, str, strlen(str) + 1);
1047     wstr[ARRAY_SIZE(wstr) - 1] = 0;
1048     return ipv4_string_to_address(wstr, strict, NULL, address, port);
1049 }
1050
1051 /***********************************************************************
1052  * RtlIpv4StringToAddressA [NTDLL.@]
1053  */
1054 NTSTATUS WINAPI RtlIpv4StringToAddressA(const char *str, BOOLEAN strict, const char **terminator, IN_ADDR *address)
1055 {
1056     WCHAR wstr[32];
1057     const WCHAR *wterminator;
1058     NTSTATUS ret;
1059
1060     TRACE("(%s, %u, %p, %p)\n", debugstr_a(str), strict, terminator, address);
1061
1062     RtlMultiByteToUnicodeN(wstr, sizeof(wstr), NULL, str, strlen(str) + 1);
1063     wstr[ARRAY_SIZE(wstr) - 1] = 0;
1064     ret = ipv4_string_to_address(wstr, strict, &wterminator, address, NULL);
1065     if (terminator) *terminator = str + (wterminator - wstr);
1066     return ret;
1067 }
1068
1069 static BOOL parse_ipv6_component(const WCHAR **str, int base, ULONG *value)
1070 {
1071     WCHAR *terminator;
1072     if (**str >= ARRAY_SIZE(hex_table) || hex_table[**str] == -1) return FALSE;
1073     *value = min(wcstoul(*str, &terminator, base), 0x7FFFFFFF);
1074     if (*terminator == '0') terminator++; /* "0x" but nothing valid after */
1075     else if (terminator == *str) return FALSE;
1076     *str = terminator;
1077     return TRUE;
1078 }
1079
1080 static NTSTATUS ipv6_string_to_address(const WCHAR *str, BOOL ex,
1081                                        const WCHAR **terminator, IN6_ADDR *address, ULONG *scope, USHORT *port)
1082 {
1083     BOOL expecting_port = FALSE, has_0x = FALSE, too_big = FALSE;
1084     int n_bytes = 0, n_ipv4_bytes = 0, gap = -1;
1085     ULONG ip_component, scope_component = 0, port_component = 0;
1086     const WCHAR *prev_str;
1087
1088     if (str[0] == '[')
1089     {
1090         if (!ex) goto error;
1091         expecting_port = TRUE;
1092         str++;
1093     }
1094
1095     if (str[0] == ':')
1096     {
1097         if (str[1] != ':') goto error;
1098         str++;
1099         /* Windows bug: a double colon at the beginning is treated as 4 bytes of zeros instead of 2 */
1100         address->u.Word[0] = 0;
1101         n_bytes = 2;
1102     }
1103
1104     for (;;)
1105     {
1106         if (!n_ipv4_bytes && *str == ':')
1107         {
1108             /* double colon */
1109             if (gap != -1) goto error;
1110             str++;
1111             prev_str = str;
1112             gap = n_bytes;
1113             if (n_bytes == 14 || !parse_ipv6_component(&str, 16, &ip_component)) break;
1114             str = prev_str;
1115         }
1116         else
1117         {
1118             prev_str = str;
1119         }
1120
1121         if (!n_ipv4_bytes && n_bytes <= (gap != -1 ? 10 : 12))
1122         {
1123             if (parse_ipv6_component(&str, 10, &ip_component) && *str == '.')
1124                 n_ipv4_bytes = 1;
1125             str = prev_str;
1126         }
1127
1128         if (n_ipv4_bytes)
1129         {
1130             /* IPv4 component */
1131             if (!parse_ipv6_component(&str, 10, &ip_component)) goto error;
1132             if (str - prev_str > 3 || ip_component > 255)
1133             {
1134                 too_big = TRUE;
1135             }
1136             else
1137             {
1138                 if (*str != '.' && (n_ipv4_bytes < 4 || (n_bytes < 15 && gap == -1))) goto error;
1139                 address->u.Byte[n_bytes] = ip_component;
1140                 n_bytes++;
1141             }
1142             if (n_ipv4_bytes == 4 || *str != '.') break;
1143             n_ipv4_bytes++;
1144         }
1145         else
1146         {
1147             /* IPv6 component */
1148             if (!parse_ipv6_component(&str, 16, &ip_component)) goto error;
1149             if (prev_str[0] == '0' && (prev_str[1] == 'x' || prev_str[1] == 'X'))
1150             {
1151                 /* Windows "feature": the last IPv6 component can start with "0x" and be longer than 4 digits */
1152                 if (terminator) *terminator = prev_str + 1; /* Windows says that the "x" is the terminator */
1153                 if (n_bytes < 14 && gap == -1) return STATUS_INVALID_PARAMETER;
1154                 address->u.Word[n_bytes/2] = htons(ip_component);
1155                 n_bytes += 2;
1156                 has_0x = TRUE;
1157                 goto fill_gap;
1158             }
1159             if (*str != ':' && n_bytes < 14 && gap == -1) goto error;
1160             if (str - prev_str > 4)
1161                 too_big = TRUE;
1162             else
1163                 address->u.Word[n_bytes/2] = htons(ip_component);
1164             n_bytes += 2;
1165             if (*str != ':' || (gap != -1 && str[1] == ':')) break;
1166         }
1167         if (n_bytes == (gap != -1 ? 14 : 16)) break;
1168         if (too_big) return STATUS_INVALID_PARAMETER;
1169         str++;
1170     }
1171
1172     if (terminator) *terminator = str;
1173     if (too_big) return STATUS_INVALID_PARAMETER;
1174
1175 fill_gap:
1176     if (gap == -1)
1177     {
1178         if (n_bytes < 16) goto error;
1179     }
1180     else
1181     {
1182         memmove(address->u.Byte + 16 - (n_bytes - gap), address->u.Byte + gap, n_bytes - gap);
1183         memset(address->u.Byte + gap, 0, 16 - n_bytes);
1184     }
1185
1186     if (ex)
1187     {
1188         if (has_0x) goto error;
1189
1190         if (*str == '%')
1191         {
1192             str++;
1193             if (!parse_ipv4_component(&str, TRUE, &scope_component)) goto error;
1194         }
1195
1196         if (expecting_port)
1197         {
1198             if (*str != ']') goto error;
1199             str++;
1200             if (*str == ':')
1201             {
1202                 str++;
1203                 if (!parse_ipv4_component(&str, FALSE, &port_component)) goto error;
1204                 if (!port_component || port_component > 0xFFFF || *str) goto error;
1205                 port_component = htons(port_component);
1206             }
1207         }
1208     }
1209
1210     if (!terminator && *str) return STATUS_INVALID_PARAMETER;
1211
1212     if (scope) *scope = scope_component;
1213     if (port) *port = port_component;
1214
1215     return STATUS_SUCCESS;
1216
1217 error:
1218     if (terminator) *terminator = str;
1219     return STATUS_INVALID_PARAMETER;
1220 }
1221
1222 /***********************************************************************
1223  * RtlIpv6StringToAddressExW [NTDLL.@]
1224  */
1225 NTSTATUS NTAPI RtlIpv6StringToAddressExW(const WCHAR *str, IN6_ADDR *address, ULONG *scope, USHORT *port)
1226 {
1227     TRACE("(%s, %p, %p, %p)\n", debugstr_w(str), address, scope, port);
1228     if (!str || !address || !scope || !port) return STATUS_INVALID_PARAMETER;
1229     return ipv6_string_to_address(str, TRUE, NULL, address, scope, port);
1230 }
1231
1232 /***********************************************************************
1233  * RtlIpv6StringToAddressW [NTDLL.@]
1234  */
1235 NTSTATUS WINAPI RtlIpv6StringToAddressW(const WCHAR *str, const WCHAR **terminator, IN6_ADDR *address)
1236 {
1237     TRACE("(%s, %p, %p)\n", debugstr_w(str), terminator, address);
1238     return ipv6_string_to_address(str, FALSE, terminator, address, NULL, NULL);
1239 }
1240
1241 /***********************************************************************
1242  * RtlIpv6StringToAddressExA [NTDLL.@]
1243  */
1244 NTSTATUS WINAPI RtlIpv6StringToAddressExA(const char *str, IN6_ADDR *address, ULONG *scope, USHORT *port)
1245 {
1246     WCHAR wstr[128];
1247
1248     TRACE("(%s, %p, %p, %p)\n", debugstr_a(str), address, scope, port);
1249
1250     if (!str || !address || !scope || !port)
1251         return STATUS_INVALID_PARAMETER;
1252
1253     RtlMultiByteToUnicodeN(wstr, sizeof(wstr), NULL, str, strlen(str) + 1);
1254     wstr[ARRAY_SIZE(wstr) - 1] = 0;
1255     return ipv6_string_to_address(wstr, TRUE, NULL, address, scope, port);
1256 }
1257
1258 /***********************************************************************
1259  * RtlIpv6StringToAddressA [NTDLL.@]
1260  */
1261 NTSTATUS WINAPI RtlIpv6StringToAddressA(const char *str, const char **terminator, IN6_ADDR *address)
1262 {
1263     WCHAR wstr[128];
1264     const WCHAR *wterminator = NULL;
1265     NTSTATUS ret;
1266
1267     TRACE("(%s, %p, %p)\n", debugstr_a(str), terminator, address);
1268
1269     RtlMultiByteToUnicodeN(wstr, sizeof(wstr), NULL, str, strlen(str) + 1);
1270     wstr[ARRAY_SIZE(wstr) - 1] = 0;
1271     ret = ipv6_string_to_address(wstr, FALSE, &wterminator, address, NULL, NULL);
1272     if (terminator && wterminator) *terminator = str + (wterminator - wstr);
1273     return ret;
1274 }
1275
1276 /***********************************************************************
1277  * RtlIpv4AddressToStringExW [NTDLL.@]
1278  *
1279  * Convert the given ipv4 address and optional the port to a string
1280  *
1281  * PARAMS
1282  *  pin     [I]  PTR to the ip address to convert (network byte order)
1283  *  port    [I]  optional port to convert (network byte order)
1284  *  buffer  [O]  destination buffer for the result
1285  *  psize   [IO] PTR to available/used size of the destination buffer
1286  *
1287  * RETURNS
1288  *  Success: STATUS_SUCCESS
1289  *  Failure: STATUS_INVALID_PARAMETER
1290  *
1291  */
1292 NTSTATUS WINAPI RtlIpv4AddressToStringExW(const IN_ADDR *pin, USHORT port, LPWSTR buffer, PULONG psize)
1293 {
1294     WCHAR tmp_ip[32];
1295     static const WCHAR fmt_ip[] = {'%','u','.','%','u','.','%','u','.','%','u',0};
1296     static const WCHAR fmt_port[] = {':','%','u',0};
1297     ULONG needed;
1298
1299     if (!pin || !buffer || !psize)
1300         return STATUS_INVALID_PARAMETER;
1301
1302     TRACE("(%p:0x%x, %d, %p, %p:%d)\n", pin, pin->S_un.S_addr, port, buffer, psize, *psize);
1303
1304     needed = swprintf(tmp_ip, ARRAY_SIZE(tmp_ip), fmt_ip,
1305                       pin->S_un.S_un_b.s_b1, pin->S_un.S_un_b.s_b2,
1306                       pin->S_un.S_un_b.s_b3, pin->S_un.S_un_b.s_b4);
1307
1308     if (port) needed += swprintf(tmp_ip + needed, ARRAY_SIZE(tmp_ip) - needed, fmt_port, ntohs(port));
1309
1310     if (*psize > needed) {
1311         *psize = needed + 1;
1312         wcscpy(buffer, tmp_ip);
1313         return STATUS_SUCCESS;
1314     }
1315
1316     *psize = needed + 1;
1317     return STATUS_INVALID_PARAMETER;
1318 }
1319
1320 /***********************************************************************
1321  * RtlIpv4AddressToStringExA [NTDLL.@]
1322  *
1323  * Convert the given ipv4 address and optional the port to a string
1324  *
1325  * See RtlIpv4AddressToStringExW
1326  */
1327 NTSTATUS WINAPI RtlIpv4AddressToStringExA(const IN_ADDR *pin, USHORT port, LPSTR buffer, PULONG psize)
1328 {
1329     CHAR tmp_ip[32];
1330     ULONG needed;
1331
1332     if (!pin || !buffer || !psize)
1333         return STATUS_INVALID_PARAMETER;
1334
1335     TRACE("(%p:0x%x, %d, %p, %p:%d)\n", pin, pin->S_un.S_addr, port, buffer, psize, *psize);
1336
1337     needed = sprintf(tmp_ip, "%u.%u.%u.%u",
1338                      pin->S_un.S_un_b.s_b1, pin->S_un.S_un_b.s_b2,
1339                      pin->S_un.S_un_b.s_b3, pin->S_un.S_un_b.s_b4);
1340
1341     if (port) needed += sprintf(tmp_ip + needed, ":%u", ntohs(port));
1342
1343     if (*psize > needed) {
1344         *psize = needed + 1;
1345         strcpy(buffer, tmp_ip);
1346         return STATUS_SUCCESS;
1347     }
1348
1349     *psize = needed + 1;
1350     return STATUS_INVALID_PARAMETER;
1351 }
1352
1353 /***********************************************************************
1354  * RtlIpv4AddressToStringW [NTDLL.@]
1355  *
1356  * Convert the given ipv4 address to a string
1357  *
1358  * PARAMS
1359  *  pin     [I]  PTR to the ip address to convert (network byte order)
1360  *  buffer  [O]  destination buffer for the result (at least 16 character)
1361  *
1362  * RETURNS
1363  *  PTR to the 0 character at the end of the converted string
1364  *
1365  */
1366 WCHAR * WINAPI RtlIpv4AddressToStringW(const IN_ADDR *pin, LPWSTR buffer)
1367 {
1368     ULONG size = 16;
1369
1370     if (RtlIpv4AddressToStringExW(pin, 0, buffer, &size)) size = 0;
1371     return buffer + size - 1;
1372 }
1373
1374 /***********************************************************************
1375  * RtlIpv4AddressToStringA [NTDLL.@]
1376  *
1377  * Convert the given ipv4 address to a string
1378  *
1379  * See RtlIpv4AddressToStringW
1380  */
1381 CHAR * WINAPI RtlIpv4AddressToStringA(const IN_ADDR *pin, LPSTR buffer)
1382 {
1383     ULONG size = 16;
1384
1385     if (RtlIpv4AddressToStringExA(pin, 0, buffer, &size)) size = 0;
1386     return buffer + size - 1;
1387 }
1388
1389 static BOOL is_ipv4_in_ipv6(const IN6_ADDR *address)
1390 {
1391     if (address->s6_words[5] == htons(0x5efe) && (address->s6_words[4] & ~htons(0x200)) == 0)
1392         return TRUE;
1393     if (*(UINT64 *)address != 0)
1394         return FALSE;
1395     if (address->s6_words[4] != 0 && address->s6_words[4] != 0xffff)
1396         return FALSE;
1397     if (address->s6_words[4] == 0 && address->s6_words[5] != 0 && address->s6_words[5] != 0xffff)
1398         return FALSE;
1399     if (address->s6_words[4] == 0xffff && address->s6_words[5] != 0)
1400         return FALSE;
1401     if (address->s6_words[6] == 0)
1402         return FALSE;
1403     return TRUE;
1404 }
1405
1406 /***********************************************************************
1407  * RtlIpv6AddressToStringExA [NTDLL.@]
1408  */
1409 NTSTATUS WINAPI RtlIpv6AddressToStringExA(const IN6_ADDR *address, ULONG scope, USHORT port, char *str, ULONG *size)
1410 {
1411     char buffer[64], *p = buffer;
1412     int i, len, gap = -1, gap_len = 1, ipv6_end = 8;
1413     ULONG needed;
1414     NTSTATUS ret;
1415
1416     TRACE("(%p %u %u %p %p)\n", address, scope, port, str, size);
1417
1418     if (!address || !str || !size)
1419         return STATUS_INVALID_PARAMETER;
1420
1421     if (is_ipv4_in_ipv6(address))
1422         ipv6_end = 6;
1423
1424     for (i = 0; i < ipv6_end; i++)
1425     {
1426         len = 0;
1427         while (!address->s6_words[i] && i < ipv6_end)
1428         {
1429             i++;
1430             len++;
1431         }
1432         if (len > gap_len)
1433         {
1434             gap = i - len;
1435             gap_len = len;
1436         }
1437     }
1438
1439     if (port) p += sprintf(p, "[");
1440
1441     i = 0;
1442     while (i < ipv6_end)
1443     {
1444         if (i == gap)
1445         {
1446             p += sprintf(p, ":");
1447             i += gap_len;
1448             if (i == ipv6_end) p += sprintf(p, ":");
1449             continue;
1450         }
1451         if (i > 0) p += sprintf(p, ":");
1452         p += sprintf(p, "%x", ntohs(address->s6_words[i]));
1453         i++;
1454     }
1455
1456     if (ipv6_end == 6)
1457     {
1458         if (p[-1] != ':') p += sprintf(p, ":");
1459         p = RtlIpv4AddressToStringA((IN_ADDR *)(address->s6_words + 6), p);
1460     }
1461
1462     if (scope) p += sprintf(p, "%%%u", scope);
1463
1464     if (port) p += sprintf(p, "]:%u", ntohs(port));
1465
1466     needed = p - buffer + 1;
1467
1468     if (*size >= needed)
1469     {
1470         strcpy(str, buffer);
1471         ret = STATUS_SUCCESS;
1472     }
1473     else
1474     {
1475         ret = STATUS_INVALID_PARAMETER;
1476     }
1477
1478     *size = needed;
1479     return ret;
1480 }
1481
1482 /***********************************************************************
1483  * RtlIpv6AddressToStringA [NTDLL.@]
1484  */
1485 char * WINAPI RtlIpv6AddressToStringA(const IN6_ADDR *address, char *str)
1486 {
1487     ULONG size = 46;
1488     if (!address || !str) return str - 1;
1489     str[45] = 0; /* this byte is set even though the string is always shorter */
1490     RtlIpv6AddressToStringExA(address, 0, 0, str, &size);
1491     return str + size - 1;
1492 }
1493
1494 /***********************************************************************
1495  * RtlIpv6AddressToStringExW [NTDLL.@]
1496  */
1497 NTSTATUS WINAPI RtlIpv6AddressToStringExW(const IN6_ADDR *address, ULONG scope, USHORT port, WCHAR *str, ULONG *size)
1498 {
1499     char cstr[64];
1500     NTSTATUS ret = RtlIpv6AddressToStringExA(address, scope, port, cstr, size);
1501     if (ret == STATUS_SUCCESS) RtlMultiByteToUnicodeN(str, *size * sizeof(WCHAR), NULL, cstr, *size);
1502     return ret;
1503 }
1504
1505 /***********************************************************************
1506  * RtlIpv6AddressToStringW [NTDLL.@]
1507  */
1508 WCHAR * WINAPI RtlIpv6AddressToStringW(const IN6_ADDR *address, WCHAR *str)
1509 {
1510     ULONG size = 46;
1511     if (!address || !str) return str;
1512     str[45] = 0; /* this word is set even though the string is always shorter */
1513     if (RtlIpv6AddressToStringExW(address, 0, 0, str, &size) != STATUS_SUCCESS)
1514         return str;
1515     return str + size - 1;
1516 }
1517
1518 /***********************************************************************
1519  * get_pointer_obfuscator (internal)
1520  */
1521 static DWORD_PTR get_pointer_obfuscator( void )
1522 {
1523     static DWORD_PTR pointer_obfuscator;
1524
1525     if (!pointer_obfuscator)
1526     {
1527         ULONG seed = NtGetTickCount();
1528         ULONG_PTR rand;
1529
1530         /* generate a random value for the obfuscator */
1531         rand = RtlUniform( &seed );
1532
1533         /* handle 64bit pointers */
1534         rand ^= (ULONG_PTR)RtlUniform( &seed ) << ((sizeof (DWORD_PTR) - sizeof (ULONG))*8);
1535
1536         /* set the high bits so dereferencing obfuscated pointers will (usually) crash */
1537         rand |= (ULONG_PTR)0xc0000000 << ((sizeof (DWORD_PTR) - sizeof (ULONG))*8);
1538
1539         InterlockedCompareExchangePointer( (void**) &pointer_obfuscator, (void*) rand, NULL );
1540     }
1541
1542     return pointer_obfuscator;
1543 }
1544
1545 /*************************************************************************
1546  * RtlEncodePointer   [NTDLL.@]
1547  */
1548 PVOID WINAPI RtlEncodePointer( PVOID ptr )
1549 {
1550     DWORD_PTR ptrval = (DWORD_PTR) ptr;
1551     return (PVOID)(ptrval ^ get_pointer_obfuscator());
1552 }
1553
1554 PVOID WINAPI RtlDecodePointer( PVOID ptr )
1555 {
1556     DWORD_PTR ptrval = (DWORD_PTR) ptr;
1557     return (PVOID)(ptrval ^ get_pointer_obfuscator());
1558 }
1559
1560 /*************************************************************************
1561  * RtlInitializeSListHead   [NTDLL.@]
1562  */
1563 VOID WINAPI RtlInitializeSListHead(PSLIST_HEADER list)
1564 {
1565 #ifdef _WIN64
1566     list->s.Alignment = list->s.Region = 0;
1567     list->Header16.HeaderType = 1;  /* we use the 16-byte header */
1568 #else
1569     list->Alignment = 0;
1570 #endif
1571 }
1572
1573 /*************************************************************************
1574  * RtlQueryDepthSList   [NTDLL.@]
1575  */
1576 WORD WINAPI RtlQueryDepthSList(PSLIST_HEADER list)
1577 {
1578 #ifdef _WIN64
1579     return list->Header16.Depth;
1580 #else
1581     return list->s.Depth;
1582 #endif
1583 }
1584
1585 /*************************************************************************
1586  * RtlFirstEntrySList   [NTDLL.@]
1587  */
1588 PSLIST_ENTRY WINAPI RtlFirstEntrySList(const SLIST_HEADER* list)
1589 {
1590 #ifdef _WIN64
1591     return (SLIST_ENTRY *)((ULONG_PTR)list->Header16.NextEntry << 4);
1592 #else
1593     return list->s.Next.Next;
1594 #endif
1595 }
1596
1597 /*************************************************************************
1598  * RtlInterlockedFlushSList   [NTDLL.@]
1599  */
1600 PSLIST_ENTRY WINAPI RtlInterlockedFlushSList(PSLIST_HEADER list)
1601 {
1602     SLIST_HEADER old, new;
1603
1604 #ifdef _WIN64
1605     if (!list->Header16.NextEntry) return NULL;
1606     new.s.Alignment = new.s.Region = 0;
1607     new.Header16.HeaderType = 1;  /* we use the 16-byte header */
1608     do
1609     {
1610         old = *list;
1611         new.Header16.Sequence = old.Header16.Sequence + 1;
1612     } while (!InterlockedCompareExchange128((__int64 *)list, new.s.Region, new.s.Alignment, (__int64 *)&old));
1613     return (SLIST_ENTRY *)((ULONG_PTR)old.Header16.NextEntry << 4);
1614 #else
1615     if (!list->s.Next.Next) return NULL;
1616     new.Alignment = 0;
1617     do
1618     {
1619         old = *list;
1620         new.s.Sequence = old.s.Sequence + 1;
1621     } while (InterlockedCompareExchange64((__int64 *)&list->Alignment, new.Alignment,
1622                                           old.Alignment) != old.Alignment);
1623     return old.s.Next.Next;
1624 #endif
1625 }
1626
1627 /*************************************************************************
1628  * RtlInterlockedPushEntrySList   [NTDLL.@]
1629  */
1630 PSLIST_ENTRY WINAPI RtlInterlockedPushEntrySList(PSLIST_HEADER list, PSLIST_ENTRY entry)
1631 {
1632     SLIST_HEADER old, new;
1633
1634 #ifdef _WIN64
1635     new.Header16.NextEntry = (ULONG_PTR)entry >> 4;
1636     do
1637     {
1638         old = *list;
1639         entry->Next = (SLIST_ENTRY *)((ULONG_PTR)old.Header16.NextEntry << 4);
1640         new.Header16.Depth = old.Header16.Depth + 1;
1641         new.Header16.Sequence = old.Header16.Sequence + 1;
1642     } while (!InterlockedCompareExchange128((__int64 *)list, new.s.Region, new.s.Alignment, (__int64 *)&old));
1643     return (SLIST_ENTRY *)((ULONG_PTR)old.Header16.NextEntry << 4);
1644 #else
1645     new.s.Next.Next = entry;
1646     do
1647     {
1648         old = *list;
1649         entry->Next = old.s.Next.Next;
1650         new.s.Depth = old.s.Depth + 1;
1651         new.s.Sequence = old.s.Sequence + 1;
1652     } while (InterlockedCompareExchange64((__int64 *)&list->Alignment, new.Alignment,
1653                                           old.Alignment) != old.Alignment);
1654     return old.s.Next.Next;
1655 #endif
1656 }
1657
1658 /*************************************************************************
1659  * RtlInterlockedPopEntrySList   [NTDLL.@]
1660  */
1661 PSLIST_ENTRY WINAPI RtlInterlockedPopEntrySList(PSLIST_HEADER list)
1662 {
1663     SLIST_HEADER old, new;
1664     PSLIST_ENTRY entry;
1665
1666 #ifdef _WIN64
1667     do
1668     {
1669         old = *list;
1670         if (!(entry = (SLIST_ENTRY *)((ULONG_PTR)old.Header16.NextEntry << 4))) return NULL;
1671         /* entry could be deleted by another thread */
1672         __TRY
1673         {
1674             new.Header16.NextEntry = (ULONG_PTR)entry->Next >> 4;
1675             new.Header16.Depth = old.Header16.Depth - 1;
1676             new.Header16.Sequence = old.Header16.Sequence + 1;
1677         }
1678         __EXCEPT_PAGE_FAULT
1679         {
1680         }
1681         __ENDTRY
1682     } while (!InterlockedCompareExchange128((__int64 *)list, new.s.Region, new.s.Alignment, (__int64 *)&old));
1683 #else
1684     do
1685     {
1686         old = *list;
1687         if (!(entry = old.s.Next.Next)) return NULL;
1688         /* entry could be deleted by another thread */
1689         __TRY
1690         {
1691             new.s.Next.Next = entry->Next;
1692             new.s.Depth = old.s.Depth - 1;
1693             new.s.Sequence = old.s.Sequence + 1;
1694         }
1695         __EXCEPT_PAGE_FAULT
1696         {
1697         }
1698         __ENDTRY
1699     } while (InterlockedCompareExchange64((__int64 *)&list->Alignment, new.Alignment,
1700                                           old.Alignment) != old.Alignment);
1701 #endif
1702     return entry;
1703 }
1704
1705 /*************************************************************************
1706  * RtlInterlockedPushListSListEx   [NTDLL.@]
1707  */
1708 PSLIST_ENTRY WINAPI RtlInterlockedPushListSListEx(PSLIST_HEADER list, PSLIST_ENTRY first,
1709                                                   PSLIST_ENTRY last, ULONG count)
1710 {
1711     SLIST_HEADER old, new;
1712
1713 #ifdef _WIN64
1714     new.Header16.NextEntry = (ULONG_PTR)first >> 4;
1715     do
1716     {
1717         old = *list;
1718         new.Header16.Depth = old.Header16.Depth + count;
1719         new.Header16.Sequence = old.Header16.Sequence + 1;
1720         last->Next = (SLIST_ENTRY *)((ULONG_PTR)old.Header16.NextEntry << 4);
1721     } while (!InterlockedCompareExchange128((__int64 *)list, new.s.Region, new.s.Alignment, (__int64 *)&old));
1722     return (SLIST_ENTRY *)((ULONG_PTR)old.Header16.NextEntry << 4);
1723 #else
1724     new.s.Next.Next = first;
1725     do
1726     {
1727         old = *list;
1728         new.s.Depth = old.s.Depth + count;
1729         new.s.Sequence = old.s.Sequence + 1;
1730         last->Next = old.s.Next.Next;
1731     } while (InterlockedCompareExchange64((__int64 *)&list->Alignment, new.Alignment,
1732                                           old.Alignment) != old.Alignment);
1733     return old.s.Next.Next;
1734 #endif
1735 }
1736
1737 /*************************************************************************
1738  * RtlInterlockedPushListSList   [NTDLL.@]
1739  */
1740 DEFINE_FASTCALL_WRAPPER(RtlInterlockedPushListSList, 16)
1741 PSLIST_ENTRY FASTCALL RtlInterlockedPushListSList(PSLIST_HEADER list, PSLIST_ENTRY first,
1742                                                   PSLIST_ENTRY last, ULONG count)
1743 {
1744     return RtlInterlockedPushListSListEx(list, first, last, count);
1745 }
1746
1747 /******************************************************************************
1748  *  RtlGetCompressionWorkSpaceSize              [NTDLL.@]
1749  */
1750 NTSTATUS WINAPI RtlGetCompressionWorkSpaceSize(USHORT format, PULONG compress_workspace,
1751                                                PULONG decompress_workspace)
1752 {
1753     FIXME("0x%04x, %p, %p: semi-stub\n", format, compress_workspace, decompress_workspace);
1754
1755     switch (format & ~COMPRESSION_ENGINE_MAXIMUM)
1756     {
1757         case COMPRESSION_FORMAT_LZNT1:
1758             if (compress_workspace)
1759             {
1760                 /* FIXME: The current implementation of RtlCompressBuffer does not use a
1761                  * workspace buffer, but Windows applications might expect a nonzero value. */
1762                 *compress_workspace = 16;
1763             }
1764             if (decompress_workspace)
1765                 *decompress_workspace = 0x1000;
1766             return STATUS_SUCCESS;
1767
1768         case COMPRESSION_FORMAT_NONE:
1769         case COMPRESSION_FORMAT_DEFAULT:
1770             return STATUS_INVALID_PARAMETER;
1771
1772         default:
1773             FIXME("format %u not implemented\n", format);
1774             return STATUS_UNSUPPORTED_COMPRESSION;
1775     }
1776 }
1777
1778 /* compress data using LZNT1, currently only a stub */
1779 static NTSTATUS lznt1_compress(UCHAR *src, ULONG src_size, UCHAR *dst, ULONG dst_size,
1780                                ULONG chunk_size, ULONG *final_size, UCHAR *workspace)
1781 {
1782     UCHAR *src_cur = src, *src_end = src + src_size;
1783     UCHAR *dst_cur = dst, *dst_end = dst + dst_size;
1784     ULONG block_size;
1785
1786     while (src_cur < src_end)
1787     {
1788         /* determine size of current chunk */
1789         block_size = min(0x1000, src_end - src_cur);
1790         if (dst_cur + sizeof(WORD) + block_size > dst_end)
1791             return STATUS_BUFFER_TOO_SMALL;
1792
1793         /* write (uncompressed) chunk header */
1794         *(WORD *)dst_cur = 0x3000 | (block_size - 1);
1795         dst_cur += sizeof(WORD);
1796
1797         /* write chunk content */
1798         memcpy(dst_cur, src_cur, block_size);
1799         dst_cur += block_size;
1800         src_cur += block_size;
1801     }
1802
1803     if (final_size)
1804         *final_size = dst_cur - dst;
1805
1806     return STATUS_SUCCESS;
1807 }
1808
1809 /******************************************************************************
1810  *  RtlCompressBuffer           [NTDLL.@]
1811  */
1812 NTSTATUS WINAPI RtlCompressBuffer(USHORT format, PUCHAR uncompressed, ULONG uncompressed_size,
1813                                   PUCHAR compressed, ULONG compressed_size, ULONG chunk_size,
1814                                   PULONG final_size, PVOID workspace)
1815 {
1816     FIXME("0x%04x, %p, %u, %p, %u, %u, %p, %p: semi-stub\n", format, uncompressed,
1817           uncompressed_size, compressed, compressed_size, chunk_size, final_size, workspace);
1818
1819     switch (format & ~COMPRESSION_ENGINE_MAXIMUM)
1820     {
1821         case COMPRESSION_FORMAT_LZNT1:
1822             return lznt1_compress(uncompressed, uncompressed_size, compressed,
1823                                   compressed_size, chunk_size, final_size, workspace);
1824
1825         case COMPRESSION_FORMAT_NONE:
1826         case COMPRESSION_FORMAT_DEFAULT:
1827             return STATUS_INVALID_PARAMETER;
1828
1829         default:
1830             FIXME("format %u not implemented\n", format);
1831             return STATUS_UNSUPPORTED_COMPRESSION;
1832     }
1833 }
1834
1835 /* decompress a single LZNT1 chunk */
1836 static UCHAR *lznt1_decompress_chunk(UCHAR *dst, ULONG dst_size, UCHAR *src, ULONG src_size)
1837 {
1838     UCHAR *src_cur = src, *src_end = src + src_size;
1839     UCHAR *dst_cur = dst, *dst_end = dst + dst_size;
1840     ULONG displacement_bits, length_bits;
1841     ULONG code_displacement, code_length;
1842     WORD flags, code;
1843
1844     while (src_cur < src_end && dst_cur < dst_end)
1845     {
1846         flags = 0x8000 | *src_cur++;
1847         while ((flags & 0xff00) && src_cur < src_end)
1848         {
1849             if (flags & 1)
1850             {
1851                 /* backwards reference */
1852                 if (src_cur + sizeof(WORD) > src_end)
1853                     return NULL;
1854
1855                 code = *(WORD *)src_cur;
1856                 src_cur += sizeof(WORD);
1857
1858                 /* find length / displacement bits */
1859                 for (displacement_bits = 12; displacement_bits > 4; displacement_bits--)
1860                     if ((1 << (displacement_bits - 1)) < dst_cur - dst) break;
1861
1862                 length_bits       = 16 - displacement_bits;
1863                 code_length       = (code & ((1 << length_bits) - 1)) + 3;
1864                 code_displacement = (code >> length_bits) + 1;
1865
1866                 if (dst_cur < dst + code_displacement)
1867                     return NULL;
1868
1869                 /* copy bytes of chunk - we can't use memcpy() since source and dest can
1870                  * be overlapping, and the same bytes can be repeated over and over again */
1871                 while (code_length--)
1872                 {
1873                     if (dst_cur >= dst_end) return dst_cur;
1874                     *dst_cur = *(dst_cur - code_displacement);
1875                     dst_cur++;
1876                 }
1877             }
1878             else
1879             {
1880                 /* uncompressed data */
1881                 if (dst_cur >= dst_end) return dst_cur;
1882                 *dst_cur++ = *src_cur++;
1883             }
1884             flags >>= 1;
1885         }
1886     }
1887
1888     return dst_cur;
1889 }
1890
1891 /* decompress data encoded with LZNT1 */
1892 static NTSTATUS lznt1_decompress(UCHAR *dst, ULONG dst_size, UCHAR *src, ULONG src_size,
1893                                  ULONG offset, ULONG *final_size, UCHAR *workspace)
1894 {
1895     UCHAR *src_cur = src, *src_end = src + src_size;
1896     UCHAR *dst_cur = dst, *dst_end = dst + dst_size;
1897     ULONG chunk_size, block_size;
1898     WORD chunk_header;
1899     UCHAR *ptr;
1900
1901     if (src_cur + sizeof(WORD) > src_end)
1902         return STATUS_BAD_COMPRESSION_BUFFER;
1903
1904     /* skip over chunks with a distance >= 0x1000 to the destination offset */
1905     while (offset >= 0x1000 && src_cur + sizeof(WORD) <= src_end)
1906     {
1907         chunk_header = *(WORD *)src_cur;
1908         src_cur += sizeof(WORD);
1909         if (!chunk_header) goto out;
1910         chunk_size = (chunk_header & 0xfff) + 1;
1911
1912         if (src_cur + chunk_size > src_end)
1913             return STATUS_BAD_COMPRESSION_BUFFER;
1914
1915         src_cur += chunk_size;
1916         offset  -= 0x1000;
1917     }
1918
1919     /* handle partially included chunk */
1920     if (offset && src_cur + sizeof(WORD) <= src_end)
1921     {
1922         chunk_header = *(WORD *)src_cur;
1923         src_cur += sizeof(WORD);
1924         if (!chunk_header) goto out;
1925         chunk_size = (chunk_header & 0xfff) + 1;
1926
1927         if (src_cur + chunk_size > src_end)
1928             return STATUS_BAD_COMPRESSION_BUFFER;
1929
1930         if (dst_cur >= dst_end)
1931             goto out;
1932
1933         if (chunk_header & 0x8000)
1934         {
1935             /* compressed chunk */
1936             if (!workspace) return STATUS_ACCESS_VIOLATION;
1937             ptr = lznt1_decompress_chunk(workspace, 0x1000, src_cur, chunk_size);
1938             if (!ptr) return STATUS_BAD_COMPRESSION_BUFFER;
1939             if (ptr - workspace > offset)
1940             {
1941                 block_size = min((ptr - workspace) - offset, dst_end - dst_cur);
1942                 memcpy(dst_cur, workspace + offset, block_size);
1943                 dst_cur += block_size;
1944             }
1945         }
1946         else
1947         {
1948             /* uncompressed chunk */
1949             if (chunk_size > offset)
1950             {
1951                 block_size = min(chunk_size - offset, dst_end - dst_cur);
1952                 memcpy(dst_cur, src_cur + offset, block_size);
1953                 dst_cur += block_size;
1954             }
1955         }
1956
1957         src_cur += chunk_size;
1958     }
1959
1960     /* handle remaining chunks */
1961     while (src_cur + sizeof(WORD) <= src_end)
1962     {
1963         chunk_header = *(WORD *)src_cur;
1964         src_cur += sizeof(WORD);
1965         if (!chunk_header) goto out;
1966         chunk_size = (chunk_header & 0xfff) + 1;
1967
1968         if (src_cur + chunk_size > src_end)
1969             return STATUS_BAD_COMPRESSION_BUFFER;
1970
1971         /* fill space with padding when the previous chunk was decompressed
1972          * to less than 4096 bytes. no padding is needed for the last chunk
1973          * or when the next chunk is truncated */
1974         block_size = ((dst_cur - dst) + offset) & 0xfff;
1975         if (block_size)
1976         {
1977             block_size = 0x1000 - block_size;
1978             if (dst_cur + block_size >= dst_end)
1979                 goto out;
1980             memset(dst_cur, 0, block_size);
1981             dst_cur += block_size;
1982         }
1983
1984         if (dst_cur >= dst_end)
1985             goto out;
1986
1987         if (chunk_header & 0x8000)
1988         {
1989             /* compressed chunk */
1990             dst_cur = lznt1_decompress_chunk(dst_cur, dst_end - dst_cur, src_cur, chunk_size);
1991             if (!dst_cur) return STATUS_BAD_COMPRESSION_BUFFER;
1992         }
1993         else
1994         {
1995             /* uncompressed chunk */
1996             block_size = min(chunk_size, dst_end - dst_cur);
1997             memcpy(dst_cur, src_cur, block_size);
1998             dst_cur += block_size;
1999         }
2000
2001         src_cur += chunk_size;
2002     }
2003
2004 out:
2005     if (final_size)
2006         *final_size = dst_cur - dst;
2007
2008     return STATUS_SUCCESS;
2009
2010 }
2011
2012 /******************************************************************************
2013  *  RtlDecompressFragment       [NTDLL.@]
2014  */
2015 NTSTATUS WINAPI RtlDecompressFragment(USHORT format, PUCHAR uncompressed, ULONG uncompressed_size,
2016                                PUCHAR compressed, ULONG compressed_size, ULONG offset,
2017                                PULONG final_size, PVOID workspace)
2018 {
2019     TRACE("0x%04x, %p, %u, %p, %u, %u, %p, %p\n", format, uncompressed,
2020           uncompressed_size, compressed, compressed_size, offset, final_size, workspace);
2021
2022     switch (format & ~COMPRESSION_ENGINE_MAXIMUM)
2023     {
2024         case COMPRESSION_FORMAT_LZNT1:
2025             return lznt1_decompress(uncompressed, uncompressed_size, compressed,
2026                                     compressed_size, offset, final_size, workspace);
2027
2028         case COMPRESSION_FORMAT_NONE:
2029         case COMPRESSION_FORMAT_DEFAULT:
2030             return STATUS_INVALID_PARAMETER;
2031
2032         default:
2033             FIXME("format %u not implemented\n", format);
2034             return STATUS_UNSUPPORTED_COMPRESSION;
2035     }
2036 }
2037
2038
2039 /******************************************************************************
2040  *  RtlDecompressBuffer         [NTDLL.@]
2041  */
2042 NTSTATUS WINAPI RtlDecompressBuffer(USHORT format, PUCHAR uncompressed, ULONG uncompressed_size,
2043                                     PUCHAR compressed, ULONG compressed_size, PULONG final_size)
2044 {
2045     TRACE("0x%04x, %p, %u, %p, %u, %p\n", format, uncompressed,
2046         uncompressed_size, compressed, compressed_size, final_size);
2047
2048     return RtlDecompressFragment(format, uncompressed, uncompressed_size,
2049                                  compressed, compressed_size, 0, final_size, NULL);
2050 }
2051
2052 /***********************************************************************
2053  *  RtlSetThreadErrorMode       [NTDLL.@]
2054  *
2055  * Set the thread local error mode.
2056  *
2057  * PARAMS
2058  *  mode    [I] The new error mode
2059  *  oldmode [O] Destination of the old error mode (may be NULL)
2060  *
2061  * RETURNS
2062  *  Success: STATUS_SUCCESS
2063  *  Failure: STATUS_INVALID_PARAMETER_1
2064  */
2065 NTSTATUS WINAPI RtlSetThreadErrorMode( DWORD mode, LPDWORD oldmode )
2066 {
2067     if (mode & ~0x70)
2068         return STATUS_INVALID_PARAMETER_1;
2069
2070     if (oldmode)
2071         *oldmode = NtCurrentTeb()->HardErrorDisabled;
2072
2073     NtCurrentTeb()->HardErrorDisabled = mode;
2074     return STATUS_SUCCESS;
2075 }
2076
2077 /***********************************************************************
2078  *  RtlGetThreadErrorMode       [NTDLL.@]
2079  *
2080  * Get the thread local error mode.
2081  *
2082  * PARAMS
2083  *  None.
2084  *
2085  * RETURNS
2086  *  The current thread local error mode.
2087  */
2088 DWORD WINAPI RtlGetThreadErrorMode( void )
2089 {
2090     return NtCurrentTeb()->HardErrorDisabled;
2091 }
2092
2093 /******************************************************************************
2094  * RtlGetCurrentTransaction [NTDLL.@]
2095  */
2096 HANDLE WINAPI RtlGetCurrentTransaction(void)
2097 {
2098     FIXME("() :stub\n");
2099     return NULL;
2100 }
2101
2102 /******************************************************************************
2103  * RtlSetCurrentTransaction [NTDLL.@]
2104  */
2105 BOOL WINAPI RtlSetCurrentTransaction(HANDLE new_transaction)
2106 {
2107     FIXME("(%p) :stub\n", new_transaction);
2108     return FALSE;
2109 }
2110
2111 /**********************************************************************
2112  *           RtlGetCurrentProcessorNumberEx [NTDLL.@]
2113  */
2114 void WINAPI RtlGetCurrentProcessorNumberEx(PROCESSOR_NUMBER *processor)
2115 {
2116     FIXME("(%p) :semi-stub\n", processor);
2117     processor->Group = 0;
2118     processor->Number = NtGetCurrentProcessorNumber();
2119     processor->Reserved = 0;
2120 }
2121
2122 /***********************************************************************
2123  *           RtlInitializeGenericTableAvl  (NTDLL.@)
2124  */
2125 void WINAPI RtlInitializeGenericTableAvl(PRTL_AVL_TABLE table, PRTL_AVL_COMPARE_ROUTINE compare,
2126                                          PRTL_AVL_ALLOCATE_ROUTINE allocate, PRTL_AVL_FREE_ROUTINE free, void *context)
2127 {
2128     FIXME("%p %p %p %p %p: stub\n", table, compare, allocate, free, context);
2129 }
2130
2131 /***********************************************************************
2132  *           RtlInsertElementGenericTableAvl  (NTDLL.@)
2133  */
2134 void WINAPI RtlInsertElementGenericTableAvl(PRTL_AVL_TABLE table, void *buffer, ULONG size, BOOL *element)
2135 {
2136     FIXME("%p %p %u %p: stub\n", table, buffer, size, element);
2137 }
2138
2139 /*********************************************************************
2140  *           RtlQueryPackageIdentity [NTDLL.@]
2141  */
2142 NTSTATUS WINAPI RtlQueryPackageIdentity(HANDLE token, WCHAR *fullname, SIZE_T *fullname_size,
2143                                         WCHAR *appid, SIZE_T *appid_size, BOOLEAN *packaged)
2144 {
2145     FIXME("(%p, %p, %p, %p, %p, %p): stub\n", token, fullname, fullname_size, appid, appid_size, packaged);
2146     return STATUS_NOT_FOUND;
2147 }