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 WIN32_NO_STATUS
  30 #include "winsock2.h"
  31 #include "windef.h"
  32 #include "winternl.h"
  33 #include "wine/debug.h"
  34 #include "wine/exception.h"
  35 #include "ntdll_misc.h"
  36 #include "in6addr.h"
  37 #include "ddk/ntddk.h"
  38 #include "ddk/ntifs.h"
  39
  40 WINE_DEFAULT_DEBUG_CHANNEL(ntdll);
  41 WINE_DECLARE_DEBUG_CHANNEL(debugstr);
  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 static LONG WINAPI debug_exception_handler( EXCEPTION_POINTERS *eptr )
 301 {
 302     EXCEPTION_RECORD *rec = eptr->ExceptionRecord;
 303     return (rec->ExceptionCode == DBG_PRINTEXCEPTION_C) ? EXCEPTION_EXECUTE_HANDLER : EXCEPTION_CONTINUE_SEARCH;
 304 }
 305
 306 /******************************************************************************
 307  *      DbgPrint        [NTDLL.@]
 308  */
 309 NTSTATUS WINAPIV DbgPrint(LPCSTR fmt, ...)
 310 {
 311     NTSTATUS ret;
 312     va_list args;
 313
 314     va_start(args, fmt);
 315     ret = vDbgPrintEx(0, DPFLTR_ERROR_LEVEL, fmt, args);
 316     va_end(args);
 317     return ret;
 318 }
 319
 320
 321 /******************************************************************************
 322  *      DbgPrintEx      [NTDLL.@]
 323  */
 324 NTSTATUS WINAPIV DbgPrintEx(ULONG iComponentId, ULONG Level, LPCSTR fmt, ...)
 325 {
 326     NTSTATUS ret;
 327     va_list args;
 328
 329     va_start(args, fmt);
 330     ret = vDbgPrintEx(iComponentId, Level, fmt, args);
 331     va_end(args);
 332     return ret;
 333 }
 334
 335 /******************************************************************************
 336  *      vDbgPrintEx     [NTDLL.@]
 337  */
 338 NTSTATUS WINAPI vDbgPrintEx( ULONG id, ULONG level, LPCSTR fmt, va_list args )
 339 {
 340     return vDbgPrintExWithPrefix( "", id, level, fmt, args );
 341 }
 342
 343 /******************************************************************************
 344  *      vDbgPrintExWithPrefix  [NTDLL.@]
 345  */
 346 NTSTATUS WINAPI vDbgPrintExWithPrefix( LPCSTR prefix, ULONG id, ULONG level, LPCSTR fmt, va_list args )
 347 {
 348     ULONG level_mask = level <= 31 ? (1 << level) : level;
 349     SIZE_T len = strlen( prefix );
 350     char buf[1024], *end;
 351
 352     strcpy( buf, prefix );
 353     len += _vsnprintf( buf + len, sizeof(buf) - len, fmt, args );
 354     end = buf + len - 1;
 355
 356     WARN_(debugstr)(*end == '\n' ? "%08lx:%08lx: %s" : "%08lx:%08lx: %s\n", id, level_mask, buf);
 357
 358     if (level_mask & (1 << DPFLTR_ERROR_LEVEL) && NtCurrentTeb()->Peb->BeingDebugged)
 359     {
 360         __TRY
 361         {
 362             EXCEPTION_RECORD record;
 363             record.ExceptionCode    = DBG_PRINTEXCEPTION_C;
 364             record.ExceptionFlags   = 0;
 365             record.ExceptionRecord  = NULL;
 366             record.ExceptionAddress = RtlRaiseException;
 367             record.NumberParameters = 2;
 368             record.ExceptionInformation[1] = (ULONG_PTR)buf;
 369             record.ExceptionInformation[0] = strlen( buf ) + 1;
 370             RtlRaiseException( &record );
 371         }
 372         __EXCEPT(debug_exception_handler)
 373         {
 374         }
 375         __ENDTRY
 376     }
 377
 378     return STATUS_SUCCESS;
 379 }
 380
 381 /******************************************************************************
 382  *  RtlAcquirePebLock           [NTDLL.@]
 383  */
 384 VOID WINAPI RtlAcquirePebLock(void)
 385 {
 386     RtlEnterCriticalSection( NtCurrentTeb()->Peb->FastPebLock );
 387 }
 388
 389 /******************************************************************************
 390  *  RtlReleasePebLock           [NTDLL.@]
 391  */
 392 VOID WINAPI RtlReleasePebLock(void)
 393 {
 394     RtlLeaveCriticalSection( NtCurrentTeb()->Peb->FastPebLock );
 395 }
 396
 397 /******************************************************************************
 398  *  RtlInitializeGenericTable           [NTDLL.@]
 399  */
 400 void WINAPI RtlInitializeGenericTable(RTL_GENERIC_TABLE *table, PRTL_GENERIC_COMPARE_ROUTINE compare,
 401                                       PRTL_GENERIC_ALLOCATE_ROUTINE allocate, PRTL_GENERIC_FREE_ROUTINE free,
 402                                       void *context)
 403 {
 404     TRACE("(%p, %p, %p, %p, %p)\n", table, compare, allocate, free, context);
 405
 406     table->TableRoot = NULL;
 407     table->InsertOrderList.Flink = &table->InsertOrderList;
 408     table->InsertOrderList.Blink = &table->InsertOrderList;
 409     table->OrderedPointer = &table->InsertOrderList;
 410     table->NumberGenericTableElements = 0;
 411     table->WhichOrderedElement = 0;
 412     table->CompareRoutine = compare;
 413     table->AllocateRoutine = allocate;
 414     table->FreeRoutine = free;
 415     table->TableContext = context;
 416 }
 417
 418 /******************************************************************************
 419  *  RtlEnumerateGenericTableWithoutSplaying           [NTDLL.@]
 420  */
 421 void * WINAPI RtlEnumerateGenericTableWithoutSplaying(RTL_GENERIC_TABLE *table, void *previous)
 422 {
 423     static int warn_once;
 424
 425     if (!warn_once++)
 426         FIXME("(%p, %p) stub!\n", table, previous);
 427     return NULL;
 428 }
 429
 430 /******************************************************************************
 431  *  RtlNumberGenericTableElements           [NTDLL.@]
 432  */
 433 ULONG WINAPI RtlNumberGenericTableElements(RTL_GENERIC_TABLE *table)
 434 {
 435     TRACE("(%p)\n", table);
 436     return table->NumberGenericTableElements;
 437 }
 438
 439 /******************************************************************************
 440  *  RtlGetElementGenericTable           [NTDLL.@]
 441  */
 442 void * WINAPI RtlGetElementGenericTable(RTL_GENERIC_TABLE *table, ULONG index)
 443 {
 444     FIXME("(%p, %lu) stub!\n", table, index);
 445     return NULL;
 446 }
 447
 448 /******************************************************************************
 449  *  RtlLookupElementGenericTable           [NTDLL.@]
 450  */
 451 void * WINAPI RtlLookupElementGenericTable(RTL_GENERIC_TABLE *table, void *buffer)
 452 {
 453     FIXME("(%p, %p) stub!\n", table, buffer);
 454     return NULL;
 455 }
 456
 457 /******************************************************************************
 458  *  RtlMoveMemory   [NTDLL.@]
 459  *
 460  * Move a block of memory that may overlap.
 461  *
 462  * PARAMS
 463  *  Destination [O] End destination for block
 464  *  Source      [O] Where to start copying from
 465  *  Length      [I] Number of bytes to copy
 466  *
 467  * RETURNS
 468  *  Nothing.
 469  */
 470 #undef RtlMoveMemory
 471 VOID WINAPI RtlMoveMemory( void *Destination, const void *Source, SIZE_T Length )
 472 {
 473     memmove(Destination, Source, Length);
 474 }
 475
 476 /******************************************************************************
 477  *  RtlFillMemory   [NTDLL.@]
 478  *
 479  * Set a block of memory with a value.
 480  *
 481  * PARAMS
 482  *  Destination [O] Block to fill
 483  *  Length      [I] Number of bytes to fill
 484  *  Fill        [I] Value to set
 485  *
 486  * RETURNS
 487  *  Nothing.
 488  */
 489 #undef RtlFillMemory
 490 VOID WINAPI RtlFillMemory( VOID *Destination, SIZE_T Length, BYTE Fill )
 491 {
 492     memset(Destination, Fill, Length);
 493 }
 494
 495 /******************************************************************************
 496  *  RtlZeroMemory   [NTDLL.@]
 497  *
 498  * Set a block of memory with 0's.
 499  *
 500  * PARAMS
 501  *  Destination [O] Block to fill
 502  *  Length      [I] Number of bytes to fill
 503  *
 504  * RETURNS
 505  *  Nothing.
 506  */
 507 #undef RtlZeroMemory
 508 VOID WINAPI RtlZeroMemory( VOID *Destination, SIZE_T Length )
 509 {
 510     memset(Destination, 0, Length);
 511 }
 512
 513 /******************************************************************************
 514  *  RtlCompareMemory   [NTDLL.@]
 515  *
 516  * Compare one block of memory with another
 517  *
 518  * PARAMS
 519  *  Source1 [I] Source block
 520  *  Source2 [I] Block to compare to Source1
 521  *  Length  [I] Number of bytes to compare
 522  *
 523  * RETURNS
 524  *  The length of the first byte at which Source1 and Source2 differ, or Length
 525  *  if they are the same.
 526  */
 527 SIZE_T WINAPI RtlCompareMemory( const VOID *Source1, const VOID *Source2, SIZE_T Length)
 528 {
 529     SIZE_T i;
 530     for(i=0; (i<Length) && (((const BYTE*)Source1)[i]==((const BYTE*)Source2)[i]); i++);
 531     return i;
 532 }
 533
 534 /******************************************************************************
 535  *  RtlCompareMemoryUlong   [NTDLL.@]
 536  *
 537  * Compare a block of memory with a value, a ULONG at a time
 538  *
 539  * PARAMS
 540  *  Source1 [I] Source block. This must be ULONG aligned
 541  *  Length  [I] Number of bytes to compare. This should be a multiple of 4
 542  *  dwVal   [I] Value to compare to
 543  *
 544  * RETURNS
 545  *  The byte position of the first byte at which Source1 is not dwVal.
 546  */
 547 SIZE_T WINAPI RtlCompareMemoryUlong(VOID *Source1, SIZE_T Length, ULONG dwVal)
 548 {
 549     SIZE_T i;
 550     for(i = 0; i < Length/sizeof(ULONG) && ((ULONG *)Source1)[i] == dwVal; i++);
 551     return i * sizeof(ULONG);
 552 }
 553
 554 /******************************************************************************
 555  *  RtlCopyMemory   [NTDLL.@]
 556  */
 557 #undef RtlCopyMemory
 558 void WINAPI RtlCopyMemory(void *dest, const void *src, SIZE_T len)
 559 {
 560     memcpy(dest, src, len);
 561 }
 562
 563 /******************************************************************************
 564  *  RtlAssert                           [NTDLL.@]
 565  *
 566  * Fail a debug assertion.
 567  *
 568  * RETURNS
 569  *  Nothing. This call does not return control to its caller.
 570  *
 571  * NOTES
 572  * Not implemented in non-debug versions.
 573  */
 574 void WINAPI RtlAssert(void *assertion, void *filename, ULONG linenumber, char *message)
 575 {
 576     FIXME("(%s, %s, %lu, %s): stub\n", debugstr_a((char*)assertion), debugstr_a((char*)filename),
 577         linenumber, debugstr_a(message));
 578 }
 579
 580 /*************************************************************************
 581  * RtlFillMemoryUlong   [NTDLL.@]
 582  *
 583  * Fill memory with a 32 bit (dword) value.
 584  *
 585  * PARAMS
 586  *  lpDest  [I] Bitmap pointer
 587  *  ulCount [I] Number of dwords to write
 588  *  ulValue [I] Value to fill with
 589  *
 590  * RETURNS
 591  *  Nothing.
 592  */
 593 VOID WINAPI RtlFillMemoryUlong(ULONG* lpDest, ULONG ulCount, ULONG ulValue)
 594 {
 595   TRACE("(%p,%lu,%lu)\n", lpDest, ulCount, ulValue);
 596
 597   ulCount /= sizeof(ULONG);
 598   while(ulCount--)
 599     *lpDest++ = ulValue;
 600 }
 601
 602 /*********************************************************************
 603  *                  RtlComputeCrc32   [NTDLL.@]
 604  *
 605  * Calculate the CRC32 checksum of a block of bytes
 606  *
 607  * PARAMS
 608  *  dwInitial [I] Initial CRC value
 609  *  pData     [I] Data block
 610  *  iLen      [I] Length of the byte block
 611  *
 612  * RETURNS
 613  *  The cumulative CRC32 of dwInitial and iLen bytes of the pData block.
 614  */
 615 DWORD WINAPI RtlComputeCrc32(DWORD dwInitial, const BYTE *pData, INT iLen)
 616 {
 617   DWORD crc = ~dwInitial;
 618
 619   TRACE("(%lu,%p,%d)\n", dwInitial, pData, iLen);
 620
 621   while (iLen > 0)
 622   {
 623     crc = CRC_table[(crc ^ *pData) & 0xff] ^ (crc >> 8);
 624     pData++;
 625     iLen--;
 626   }
 627   return ~crc;
 628 }
 629
 630
 631 /*************************************************************************
 632  * RtlUlonglongByteSwap    [NTDLL.@]
 633  *
 634  * Swap the bytes of an unsigned long long value.
 635  *
 636  * PARAMS
 637  *  i [I] Value to swap bytes of
 638  *
 639  * RETURNS
 640  *  The value with its bytes swapped.
 641  */
 642 #ifdef __i386__
 643 __ASM_FASTCALL_FUNC(RtlUlonglongByteSwap, 8,
 644                     "movl 4(%esp),%edx\n\t"
 645                     "bswap %edx\n\t"
 646                     "movl 8(%esp),%eax\n\t"
 647                     "bswap %eax\n\t"
 648                     "ret $8")
 649 #endif
 650
 651 /*************************************************************************
 652  * RtlUlongByteSwap    [NTDLL.@]
 653  *
 654  * Swap the bytes of an unsigned int value.
 655  *
 656  * NOTES
 657  *  ix86 version takes argument in %ecx. Other systems use the inline version.
 658  */
 659 #ifdef __i386__
 660 __ASM_FASTCALL_FUNC(RtlUlongByteSwap, 4,
 661                     "movl %ecx,%eax\n\t"
 662                     "bswap %eax\n\t"
 663                     "ret")
 664 #endif
 665
 666 /*************************************************************************
 667  * RtlUshortByteSwap    [NTDLL.@]
 668  *
 669  * Swap the bytes of an unsigned short value.
 670  *
 671  * NOTES
 672  *  i386 version takes argument in %cx. Other systems use the inline version.
 673  */
 674 #ifdef __i386__
 675 __ASM_FASTCALL_FUNC(RtlUshortByteSwap, 4,
 676                     "movb %ch,%al\n\t"
 677                     "movb %cl,%ah\n\t"
 678                     "ret")
 679 #endif
 680
 681
 682 /*************************************************************************
 683  * RtlUniform   [NTDLL.@]
 684  *
 685  * Generates a uniform random number
 686  *
 687  * PARAMS
 688  *  seed [O] The seed of the Random function
 689  *
 690  * RETURNS
 691  *  It returns a random number uniformly distributed over [0..MAXLONG-1].
 692  *
 693  * NOTES
 694  *  Generates a uniform random number using a linear congruential generator.
 695  *
 696  * DIFFERENCES
 697  *  The native documentation states that the random number is
 698  *  uniformly distributed over [0..MAXLONG]. In reality the native
 699  *  function and our function return a random number uniformly
 700  *  distributed over [0..MAXLONG-1].
 701  */
 702 ULONG WINAPI RtlUniform( ULONG *seed )
 703 {
 704     /* See the tests for details. */
 705     return (*seed = ((ULONGLONG)*seed * 0x7fffffed + 0x7fffffc3) % 0x7fffffff);
 706 }
 707
 708
 709 /*************************************************************************
 710  * RtlRandom   [NTDLL.@]
 711  *
 712  * Generates a random number
 713  *
 714  * PARAMS
 715  *  seed [O] The seed of the Random function
 716  *
 717  * RETURNS
 718  *  It returns a random number distributed over [0..MAXLONG-1].
 719  */
 720 ULONG WINAPI RtlRandom (PULONG seed)
 721 {
 722     static ULONG saved_value[128] =
 723     { /*   0 */ 0x4c8bc0aa, 0x4c022957, 0x2232827a, 0x2f1e7626, 0x7f8bdafb, 0x5c37d02a, 0x0ab48f72, 0x2f0c4ffa,
 724       /*   8 */ 0x290e1954, 0x6b635f23, 0x5d3885c0, 0x74b49ff8, 0x5155fa54, 0x6214ad3f, 0x111e9c29, 0x242a3a09,
 725       /*  16 */ 0x75932ae1, 0x40ac432e, 0x54f7ba7a, 0x585ccbd5, 0x6df5c727, 0x0374dad1, 0x7112b3f1, 0x735fc311,
 726       /*  24 */ 0x404331a9, 0x74d97781, 0x64495118, 0x323e04be, 0x5974b425, 0x4862e393, 0x62389c1d, 0x28a68b82,
 727       /*  32 */ 0x0f95da37, 0x7a50bbc6, 0x09b0091c, 0x22cdb7b4, 0x4faaed26, 0x66417ccd, 0x189e4bfa, 0x1ce4e8dd,
 728       /*  40 */ 0x5274c742, 0x3bdcf4dc, 0x2d94e907, 0x32eac016, 0x26d33ca3, 0x60415a8a, 0x31f57880, 0x68c8aa52,
 729       /*  48 */ 0x23eb16da, 0x6204f4a1, 0x373927c1, 0x0d24eb7c, 0x06dd7379, 0x2b3be507, 0x0f9c55b1, 0x2c7925eb,
 730       /*  56 */ 0x36d67c9a, 0x42f831d9, 0x5e3961cb, 0x65d637a8, 0x24bb3820, 0x4d08e33d, 0x2188754f, 0x147e409e,
 731       /*  64 */ 0x6a9620a0, 0x62e26657, 0x7bd8ce81, 0x11da0abb, 0x5f9e7b50, 0x23e444b6, 0x25920c78, 0x5fc894f0,
 732       /*  72 */ 0x5e338cbb, 0x404237fd, 0x1d60f80f, 0x320a1743, 0x76013d2b, 0x070294ee, 0x695e243b, 0x56b177fd,
 733       /*  80 */ 0x752492e1, 0x6decd52f, 0x125f5219, 0x139d2e78, 0x1898d11e, 0x2f7ee785, 0x4db405d8, 0x1a028a35,
 734       /*  88 */ 0x63f6f323, 0x1f6d0078, 0x307cfd67, 0x3f32a78a, 0x6980796c, 0x462b3d83, 0x34b639f2, 0x53fce379,
 735       /*  96 */ 0x74ba50f4, 0x1abc2c4b, 0x5eeaeb8d, 0x335a7a0d, 0x3973dd20, 0x0462d66b, 0x159813ff, 0x1e4643fd,
 736       /* 104 */ 0x06bc5c62, 0x3115e3fc, 0x09101613, 0x47af2515, 0x4f11ec54, 0x78b99911, 0x3db8dd44, 0x1ec10b9b,
 737       /* 112 */ 0x5b5506ca, 0x773ce092, 0x567be81a, 0x5475b975, 0x7a2cde1a, 0x494536f5, 0x34737bb4, 0x76d9750b,
 738       /* 120 */ 0x2a1f6232, 0x2e49644d, 0x7dddcbe7, 0x500cebdb, 0x619dab9e, 0x48c626fe, 0x1cda3193, 0x52dabe9d };
 739     ULONG rand;
 740     int pos;
 741     ULONG result;
 742
 743     rand = (*seed * 0x7fffffed + 0x7fffffc3) % 0x7fffffff;
 744     *seed = (rand * 0x7fffffed + 0x7fffffc3) % 0x7fffffff;
 745     pos = *seed & 0x7f;
 746     result = saved_value[pos];
 747     saved_value[pos] = rand;
 748     return(result);
 749 }
 750
 751
 752 /*************************************************************************
 753  * RtlRandomEx   [NTDLL.@]
 754  */
 755 ULONG WINAPI RtlRandomEx( ULONG *seed )
 756 {
 757     WARN( "semi-stub: should use a different algorithm\n" );
 758     return RtlRandom( seed );
 759 }
 760
 761 /*************************************************************************
 762  * RtlAreAllAccessesGranted   [NTDLL.@]
 763  *
 764  * Check if all desired accesses are granted
 765  *
 766  * RETURNS
 767  *  TRUE: All desired accesses are granted
 768  *  FALSE: Otherwise
 769  */
 770 BOOLEAN WINAPI RtlAreAllAccessesGranted(
 771     ACCESS_MASK GrantedAccess,
 772     ACCESS_MASK DesiredAccess)
 773 {
 774     return (GrantedAccess & DesiredAccess) == DesiredAccess;
 775 }
 776
 777
 778 /*************************************************************************
 779  * RtlAreAnyAccessesGranted   [NTDLL.@]
 780  *
 781  * Check if at least one of the desired accesses is granted
 782  *
 783  * PARAMS
 784  *  GrantedAccess [I] Access mask of granted accesses
 785  *  DesiredAccess [I] Access mask of desired accesses
 786  *
 787  * RETURNS
 788  *  TRUE: At least one of the desired accesses is granted
 789  *  FALSE: Otherwise
 790  */
 791 BOOLEAN WINAPI RtlAreAnyAccessesGranted(
 792     ACCESS_MASK GrantedAccess,
 793     ACCESS_MASK DesiredAccess)
 794 {
 795     return (GrantedAccess & DesiredAccess) != 0;
 796 }
 797
 798
 799 /*************************************************************************
 800  * RtlMapGenericMask   [NTDLL.@]
 801  *
 802  * Determine the nongeneric access rights specified by an access mask
 803  *
 804  * RETURNS
 805  *  Nothing.
 806  */
 807 void WINAPI RtlMapGenericMask(
 808     PACCESS_MASK AccessMask,
 809     const GENERIC_MAPPING *GenericMapping)
 810 {
 811     if (*AccessMask & GENERIC_READ) {
 812         *AccessMask |= GenericMapping->GenericRead;
 813     } /* if */
 814
 815     if (*AccessMask & GENERIC_WRITE) {
 816         *AccessMask |= GenericMapping->GenericWrite;
 817     } /* if */
 818
 819     if (*AccessMask & GENERIC_EXECUTE) {
 820         *AccessMask |= GenericMapping->GenericExecute;
 821     } /* if */
 822
 823     if (*AccessMask & GENERIC_ALL) {
 824         *AccessMask |= GenericMapping->GenericAll;
 825     } /* if */
 826
 827     *AccessMask &= 0x0FFFFFFF;
 828 }
 829
 830
 831 /*************************************************************************
 832  * RtlCopyLuid   [NTDLL.@]
 833  *
 834  * Copy a local unique ID.
 835  *
 836  * PARAMS
 837  *  LuidDest [O] Destination for the copied Luid
 838  *  LuidSrc  [I] Source Luid to copy to LuidDest
 839  *
 840  * RETURNS
 841  *  Nothing.
 842  */
 843 void WINAPI RtlCopyLuid (PLUID LuidDest, const LUID *LuidSrc)
 844 {
 845     *LuidDest = *LuidSrc;
 846 }
 847
 848
 849 /*************************************************************************
 850  * RtlEqualLuid   [NTDLL.@]
 851  *
 852  * Compare two local unique IDs.
 853  *
 854  * PARAMS
 855  *  Luid1 [I] First Luid to compare to Luid2
 856  *  Luid2 [I] Second Luid to compare to Luid1
 857  *
 858  * RETURNS
 859  *  TRUE: The two LUIDs are equal.
 860  *  FALSE: Otherwise
 861  */
 862 BOOLEAN WINAPI RtlEqualLuid (const LUID *Luid1, const LUID *Luid2)
 863 {
 864   return (Luid1->LowPart ==  Luid2->LowPart && Luid1->HighPart == Luid2->HighPart);
 865 }
 866
 867
 868 /*************************************************************************
 869  * RtlCopyLuidAndAttributesArray   [NTDLL.@]
 870  *
 871  * Copy an array of local unique IDs and attributes.
 872  *
 873  * PARAMS
 874  *  Count [I] Number of Luid/attributes in Src
 875  *  Src   [I] Source Luid/attributes to copy
 876  *  Dest  [O] Destination for copied Luid/attributes
 877  *
 878  * RETURNS
 879  *  Nothing.
 880  *
 881  * NOTES
 882  *  Dest must be large enough to hold Src.
 883  */
 884 void WINAPI RtlCopyLuidAndAttributesArray(
 885     ULONG Count,
 886     const LUID_AND_ATTRIBUTES *Src,
 887     PLUID_AND_ATTRIBUTES Dest)
 888 {
 889     ULONG i;
 890
 891     for (i = 0; i < Count; i++) Dest[i] = Src[i];
 892 }
 893
 894 static BOOL parse_ipv4_component(const WCHAR **str, BOOL strict, ULONG *value)
 895 {
 896     int base = 10, d;
 897     WCHAR c;
 898     ULONG cur_value, prev_value = 0;
 899     BOOL success = FALSE;
 900
 901     if (**str == '.')
 902     {
 903         *str += 1;
 904         return FALSE;
 905     }
 906
 907     if ((*str)[0] == '0')
 908     {
 909         if ((*str)[1] == 'x' || (*str)[1] == 'X')
 910         {
 911             *str += 2;
 912             if (strict) return FALSE;
 913             base = 16;
 914         }
 915         else if ((*str)[1] >= '0' && (*str)[1] <= '9')
 916         {
 917             *str += 1;
 918             if (strict) return FALSE;
 919             base = 8;
 920         }
 921     }
 922
 923     for (cur_value = 0; **str; *str += 1)
 924     {
 925         c = **str;
 926         if (c >= ARRAY_SIZE(hex_table)) break;
 927         d = hex_table[c];
 928         if (d == -1 || d >= base) break;
 929         cur_value = cur_value * base + d;
 930         success = TRUE;
 931         if (cur_value < prev_value) return FALSE; /* overflow */
 932         prev_value = cur_value;
 933     }
 934
 935     if (success) *value = cur_value;
 936     return success;
 937 }
 938
 939 static NTSTATUS ipv4_string_to_address(const WCHAR *str, BOOL strict,
 940                                        const WCHAR **terminator, IN_ADDR *address, USHORT *port)
 941 {
 942     ULONG fields[4];
 943     int n = 0;
 944
 945     for (;;)
 946     {
 947         if (!parse_ipv4_component(&str, strict, &fields[n]))
 948             goto error;
 949         n++;
 950         if (*str != '.')
 951             break;
 952         if (n == 4)
 953             goto error;
 954         str++;
 955     }
 956
 957     if (strict && n < 4)
 958         goto error;
 959
 960     switch (n)
 961     {
 962         case 4:
 963             if (fields[0] > 0xFF || fields[1] > 0xFF || fields[2] > 0xFF || fields[3] > 0xFF)
 964                 goto error;
 965             address->S_un.S_un_b.s_b1 = fields[0];
 966             address->S_un.S_un_b.s_b2 = fields[1];
 967             address->S_un.S_un_b.s_b3 = fields[2];
 968             address->S_un.S_un_b.s_b4 = fields[3];
 969             break;
 970         case 3:
 971             if (fields[0] > 0xFF || fields[1] > 0xFF || fields[2] > 0xFFFF)
 972                 goto error;
 973             address->S_un.S_un_b.s_b1 = fields[0];
 974             address->S_un.S_un_b.s_b2 = fields[1];
 975             address->S_un.S_un_b.s_b3 = (fields[2] & 0xFF00) >> 8;
 976             address->S_un.S_un_b.s_b4 = (fields[2] & 0x00FF);
 977             break;
 978         case 2:
 979             if (fields[0] > 0xFF || fields[1] > 0xFFFFFF)
 980                 goto error;
 981             address->S_un.S_un_b.s_b1 = fields[0];
 982             address->S_un.S_un_b.s_b2 = (fields[1] & 0xFF0000) >> 16;
 983             address->S_un.S_un_b.s_b3 = (fields[1] & 0x00FF00) >> 8;
 984             address->S_un.S_un_b.s_b4 = (fields[1] & 0x0000FF);
 985             break;
 986         case 1:
 987             address->S_un.S_un_b.s_b1 = (fields[0] & 0xFF000000) >> 24;
 988             address->S_un.S_un_b.s_b2 = (fields[0] & 0x00FF0000) >> 16;
 989             address->S_un.S_un_b.s_b3 = (fields[0] & 0x0000FF00) >> 8;
 990             address->S_un.S_un_b.s_b4 = (fields[0] & 0x000000FF);
 991             break;
 992         default:
 993             goto error;
 994     }
 995
 996     if (terminator) *terminator = str;
 997
 998     if (*str == ':')
 999     {
1000         str++;
1001         if (!parse_ipv4_component(&str, FALSE, &fields[0]))
1002             goto error;
1003         if (!fields[0] || fields[0] > 0xFFFF || *str)
1004             goto error;
1005         if (port)
1006         {
1007             *port = htons(fields[0]);
1008             if (terminator) *terminator = str;
1009         }
1010     }
1011
1012     if (!terminator && *str)
1013         return STATUS_INVALID_PARAMETER;
1014     return STATUS_SUCCESS;
1015
1016 error:
1017     if (terminator) *terminator = str;
1018     return STATUS_INVALID_PARAMETER;
1019 }
1020
1021 /***********************************************************************
1022  * RtlIpv4StringToAddressExW [NTDLL.@]
1023  */
1024 NTSTATUS WINAPI RtlIpv4StringToAddressExW(const WCHAR *str, BOOLEAN strict, IN_ADDR *address, USHORT *port)
1025 {
1026     TRACE("(%s, %u, %p, %p)\n", debugstr_w(str), strict, address, port);
1027     if (!str || !address || !port) return STATUS_INVALID_PARAMETER;
1028     return ipv4_string_to_address(str, strict, NULL, address, port);
1029 }
1030
1031 /***********************************************************************
1032  * RtlIpv4StringToAddressW [NTDLL.@]
1033  */
1034 NTSTATUS WINAPI RtlIpv4StringToAddressW(const WCHAR *str, BOOLEAN strict, const WCHAR **terminator, IN_ADDR *address)
1035 {
1036     TRACE("(%s, %u, %p, %p)\n", debugstr_w(str), strict, terminator, address);
1037     return ipv4_string_to_address(str, strict, terminator, address, NULL);
1038 }
1039
1040 /***********************************************************************
1041  * RtlIpv4StringToAddressExA [NTDLL.@]
1042  */
1043 NTSTATUS WINAPI RtlIpv4StringToAddressExA(const char *str, BOOLEAN strict, IN_ADDR *address, USHORT *port)
1044 {
1045     WCHAR wstr[32];
1046
1047     TRACE("(%s, %u, %p, %p)\n", debugstr_a(str), strict, address, port);
1048
1049     if (!str || !address || !port)
1050         return STATUS_INVALID_PARAMETER;
1051
1052     RtlMultiByteToUnicodeN(wstr, sizeof(wstr), NULL, str, strlen(str) + 1);
1053     wstr[ARRAY_SIZE(wstr) - 1] = 0;
1054     return ipv4_string_to_address(wstr, strict, NULL, address, port);
1055 }
1056
1057 /***********************************************************************
1058  * RtlIpv4StringToAddressA [NTDLL.@]
1059  */
1060 NTSTATUS WINAPI RtlIpv4StringToAddressA(const char *str, BOOLEAN strict, const char **terminator, IN_ADDR *address)
1061 {
1062     WCHAR wstr[32];
1063     const WCHAR *wterminator;
1064     NTSTATUS ret;
1065
1066     TRACE("(%s, %u, %p, %p)\n", debugstr_a(str), strict, terminator, address);
1067
1068     RtlMultiByteToUnicodeN(wstr, sizeof(wstr), NULL, str, strlen(str) + 1);
1069     wstr[ARRAY_SIZE(wstr) - 1] = 0;
1070     ret = ipv4_string_to_address(wstr, strict, &wterminator, address, NULL);
1071     if (terminator) *terminator = str + (wterminator - wstr);
1072     return ret;
1073 }
1074
1075 static BOOL parse_ipv6_component(const WCHAR **str, int base, ULONG *value)
1076 {
1077     WCHAR *terminator;
1078     if (**str >= ARRAY_SIZE(hex_table) || hex_table[**str] == -1) return FALSE;
1079     *value = min(wcstoul(*str, &terminator, base), 0x7FFFFFFF);
1080     if (*terminator == '0') terminator++; /* "0x" but nothing valid after */
1081     else if (terminator == *str) return FALSE;
1082     *str = terminator;
1083     return TRUE;
1084 }
1085
1086 static NTSTATUS ipv6_string_to_address(const WCHAR *str, BOOL ex,
1087                                        const WCHAR **terminator, IN6_ADDR *address, ULONG *scope, USHORT *port)
1088 {
1089     BOOL expecting_port = FALSE, has_0x = FALSE, too_big = FALSE;
1090     int n_bytes = 0, n_ipv4_bytes = 0, gap = -1;
1091     ULONG ip_component, scope_component = 0, port_component = 0;
1092     const WCHAR *prev_str;
1093
1094     if (str[0] == '[')
1095     {
1096         if (!ex) goto error;
1097         expecting_port = TRUE;
1098         str++;
1099     }
1100
1101     if (str[0] == ':')
1102     {
1103         if (str[1] != ':') goto error;
1104         str++;
1105         address->u.Word[0] = 0;
1106     }
1107
1108     for (;;)
1109     {
1110         if (!n_ipv4_bytes && *str == ':')
1111         {
1112             /* double colon */
1113             if (gap != -1) goto error;
1114             str++;
1115             prev_str = str;
1116             gap = n_bytes;
1117             if (n_bytes == 14 || !parse_ipv6_component(&str, 16, &ip_component)) break;
1118             str = prev_str;
1119         }
1120         else
1121         {
1122             prev_str = str;
1123         }
1124
1125         if (!n_ipv4_bytes && n_bytes <= (gap != -1 ? 10 : 12))
1126         {
1127             if (parse_ipv6_component(&str, 10, &ip_component) && *str == '.')
1128                 n_ipv4_bytes = 1;
1129             str = prev_str;
1130         }
1131
1132         if (n_ipv4_bytes)
1133         {
1134             /* IPv4 component */
1135             if (!parse_ipv6_component(&str, 10, &ip_component)) goto error;
1136             if (str - prev_str > 3 || ip_component > 255)
1137             {
1138                 too_big = TRUE;
1139             }
1140             else
1141             {
1142                 if (*str != '.' && (n_ipv4_bytes < 4 || (n_bytes < 15 && gap == -1))) goto error;
1143                 address->u.Byte[n_bytes] = ip_component;
1144                 n_bytes++;
1145             }
1146             if (n_ipv4_bytes == 4 || *str != '.') break;
1147             n_ipv4_bytes++;
1148         }
1149         else
1150         {
1151             /* IPv6 component */
1152             if (!parse_ipv6_component(&str, 16, &ip_component)) goto error;
1153             if (prev_str[0] == '0' && (prev_str[1] == 'x' || prev_str[1] == 'X'))
1154             {
1155                 /* Windows "feature": the last IPv6 component can start with "0x" and be longer than 4 digits */
1156                 if (terminator) *terminator = prev_str + 1; /* Windows says that the "x" is the terminator */
1157                 if (n_bytes < 14 && gap == -1) return STATUS_INVALID_PARAMETER;
1158                 address->u.Word[n_bytes/2] = htons(ip_component);
1159                 n_bytes += 2;
1160                 has_0x = TRUE;
1161                 goto fill_gap;
1162             }
1163             if (*str != ':' && n_bytes < 14 && gap == -1) goto error;
1164             if (str - prev_str > 4)
1165                 too_big = TRUE;
1166             else
1167                 address->u.Word[n_bytes/2] = htons(ip_component);
1168             n_bytes += 2;
1169             if (*str != ':' || (gap != -1 && str[1] == ':')) break;
1170         }
1171         if (n_bytes == (gap != -1 ? 14 : 16)) break;
1172         if (too_big) return STATUS_INVALID_PARAMETER;
1173         str++;
1174     }
1175
1176     if (terminator) *terminator = str;
1177     if (too_big) return STATUS_INVALID_PARAMETER;
1178
1179 fill_gap:
1180     if (gap == -1)
1181     {
1182         if (n_bytes < 16) goto error;
1183     }
1184     else
1185     {
1186         memmove(address->u.Byte + 16 - (n_bytes - gap), address->u.Byte + gap, n_bytes - gap);
1187         memset(address->u.Byte + gap, 0, 16 - n_bytes);
1188     }
1189
1190     if (ex)
1191     {
1192         if (has_0x) goto error;
1193
1194         if (*str == '%')
1195         {
1196             str++;
1197             if (!parse_ipv4_component(&str, TRUE, &scope_component)) goto error;
1198         }
1199
1200         if (expecting_port)
1201         {
1202             if (*str != ']') goto error;
1203             str++;
1204             if (*str == ':')
1205             {
1206                 str++;
1207                 if (!parse_ipv4_component(&str, FALSE, &port_component)) goto error;
1208                 if (!port_component || port_component > 0xFFFF || *str) goto error;
1209                 port_component = htons(port_component);
1210             }
1211         }
1212     }
1213
1214     if (!terminator && *str) return STATUS_INVALID_PARAMETER;
1215
1216     if (scope) *scope = scope_component;
1217     if (port) *port = port_component;
1218
1219     return STATUS_SUCCESS;
1220
1221 error:
1222     if (terminator) *terminator = str;
1223     return STATUS_INVALID_PARAMETER;
1224 }
1225
1226 /***********************************************************************
1227  * RtlIpv6StringToAddressExW [NTDLL.@]
1228  */
1229 NTSTATUS NTAPI RtlIpv6StringToAddressExW(const WCHAR *str, IN6_ADDR *address, ULONG *scope, USHORT *port)
1230 {
1231     TRACE("(%s, %p, %p, %p)\n", debugstr_w(str), address, scope, port);
1232     if (!str || !address || !scope || !port) return STATUS_INVALID_PARAMETER;
1233     return ipv6_string_to_address(str, TRUE, NULL, address, scope, port);
1234 }
1235
1236 /***********************************************************************
1237  * RtlIpv6StringToAddressW [NTDLL.@]
1238  */
1239 NTSTATUS WINAPI RtlIpv6StringToAddressW(const WCHAR *str, const WCHAR **terminator, IN6_ADDR *address)
1240 {
1241     TRACE("(%s, %p, %p)\n", debugstr_w(str), terminator, address);
1242     return ipv6_string_to_address(str, FALSE, terminator, address, NULL, NULL);
1243 }
1244
1245 /***********************************************************************
1246  * RtlIpv6StringToAddressExA [NTDLL.@]
1247  */
1248 NTSTATUS WINAPI RtlIpv6StringToAddressExA(const char *str, IN6_ADDR *address, ULONG *scope, USHORT *port)
1249 {
1250     WCHAR wstr[128];
1251
1252     TRACE("(%s, %p, %p, %p)\n", debugstr_a(str), address, scope, port);
1253
1254     if (!str || !address || !scope || !port)
1255         return STATUS_INVALID_PARAMETER;
1256
1257     RtlMultiByteToUnicodeN(wstr, sizeof(wstr), NULL, str, strlen(str) + 1);
1258     wstr[ARRAY_SIZE(wstr) - 1] = 0;
1259     return ipv6_string_to_address(wstr, TRUE, NULL, address, scope, port);
1260 }
1261
1262 /***********************************************************************
1263  * RtlIpv6StringToAddressA [NTDLL.@]
1264  */
1265 NTSTATUS WINAPI RtlIpv6StringToAddressA(const char *str, const char **terminator, IN6_ADDR *address)
1266 {
1267     WCHAR wstr[128];
1268     const WCHAR *wterminator = NULL;
1269     NTSTATUS ret;
1270
1271     TRACE("(%s, %p, %p)\n", debugstr_a(str), terminator, address);
1272
1273     RtlMultiByteToUnicodeN(wstr, sizeof(wstr), NULL, str, strlen(str) + 1);
1274     wstr[ARRAY_SIZE(wstr) - 1] = 0;
1275     ret = ipv6_string_to_address(wstr, FALSE, &wterminator, address, NULL, NULL);
1276     if (terminator && wterminator) *terminator = str + (wterminator - wstr);
1277     return ret;
1278 }
1279
1280 /***********************************************************************
1281  * RtlIpv4AddressToStringExW [NTDLL.@]
1282  *
1283  * Convert the given ipv4 address and optional the port to a string
1284  *
1285  * PARAMS
1286  *  pin     [I]  PTR to the ip address to convert (network byte order)
1287  *  port    [I]  optional port to convert (network byte order)
1288  *  buffer  [O]  destination buffer for the result
1289  *  psize   [IO] PTR to available/used size of the destination buffer
1290  *
1291  * RETURNS
1292  *  Success: STATUS_SUCCESS
1293  *  Failure: STATUS_INVALID_PARAMETER
1294  *
1295  */
1296 NTSTATUS WINAPI RtlIpv4AddressToStringExW(const IN_ADDR *pin, USHORT port, LPWSTR buffer, PULONG psize)
1297 {
1298     WCHAR tmp_ip[32];
1299     ULONG needed;
1300
1301     if (!pin || !buffer || !psize)
1302         return STATUS_INVALID_PARAMETER;
1303
1304     TRACE("(%p:0x%lx, %d, %p, %p:%ld)\n", pin, pin->S_un.S_addr, port, buffer, psize, *psize);
1305
1306     needed = swprintf(tmp_ip, ARRAY_SIZE(tmp_ip), L"%u.%u.%u.%u",
1307                       pin->S_un.S_un_b.s_b1, pin->S_un.S_un_b.s_b2,
1308                       pin->S_un.S_un_b.s_b3, pin->S_un.S_un_b.s_b4);
1309
1310     if (port) needed += swprintf(tmp_ip + needed, ARRAY_SIZE(tmp_ip) - needed, L":%u", ntohs(port));
1311
1312     if (*psize > needed) {
1313         *psize = needed + 1;
1314         wcscpy(buffer, tmp_ip);
1315         return STATUS_SUCCESS;
1316     }
1317
1318     *psize = needed + 1;
1319     return STATUS_INVALID_PARAMETER;
1320 }
1321
1322 /***********************************************************************
1323  * RtlIpv4AddressToStringExA [NTDLL.@]
1324  *
1325  * Convert the given ipv4 address and optional the port to a string
1326  *
1327  * See RtlIpv4AddressToStringExW
1328  */
1329 NTSTATUS WINAPI RtlIpv4AddressToStringExA(const IN_ADDR *pin, USHORT port, LPSTR buffer, PULONG psize)
1330 {
1331     CHAR tmp_ip[32];
1332     ULONG needed;
1333
1334     if (!pin || !buffer || !psize)
1335         return STATUS_INVALID_PARAMETER;
1336
1337     TRACE("(%p:0x%lx, %d, %p, %p:%ld)\n", pin, pin->S_un.S_addr, port, buffer, psize, *psize);
1338
1339     needed = sprintf(tmp_ip, "%u.%u.%u.%u",
1340                      pin->S_un.S_un_b.s_b1, pin->S_un.S_un_b.s_b2,
1341                      pin->S_un.S_un_b.s_b3, pin->S_un.S_un_b.s_b4);
1342
1343     if (port) needed += sprintf(tmp_ip + needed, ":%u", ntohs(port));
1344
1345     if (*psize > needed) {
1346         *psize = needed + 1;
1347         strcpy(buffer, tmp_ip);
1348         return STATUS_SUCCESS;
1349     }
1350
1351     *psize = needed + 1;
1352     return STATUS_INVALID_PARAMETER;
1353 }
1354
1355 /***********************************************************************
1356  * RtlIpv4AddressToStringW [NTDLL.@]
1357  *
1358  * Convert the given ipv4 address to a string
1359  *
1360  * PARAMS
1361  *  pin     [I]  PTR to the ip address to convert (network byte order)
1362  *  buffer  [O]  destination buffer for the result (at least 16 character)
1363  *
1364  * RETURNS
1365  *  PTR to the 0 character at the end of the converted string
1366  *
1367  */
1368 WCHAR * WINAPI RtlIpv4AddressToStringW(const IN_ADDR *pin, LPWSTR buffer)
1369 {
1370     ULONG size = 16;
1371
1372     if (RtlIpv4AddressToStringExW(pin, 0, buffer, &size)) size = 0;
1373     return buffer + size - 1;
1374 }
1375
1376 /***********************************************************************
1377  * RtlIpv4AddressToStringA [NTDLL.@]
1378  *
1379  * Convert the given ipv4 address to a string
1380  *
1381  * See RtlIpv4AddressToStringW
1382  */
1383 CHAR * WINAPI RtlIpv4AddressToStringA(const IN_ADDR *pin, LPSTR buffer)
1384 {
1385     ULONG size = 16;
1386
1387     if (RtlIpv4AddressToStringExA(pin, 0, buffer, &size)) size = 0;
1388     return buffer + size - 1;
1389 }
1390
1391 static BOOL is_ipv4_in_ipv6(const IN6_ADDR *address)
1392 {
1393     if (address->s6_words[5] == htons(0x5efe) && (address->s6_words[4] & ~htons(0x200)) == 0)
1394         return TRUE;
1395     if (*(UINT64 *)address != 0)
1396         return FALSE;
1397     if (address->s6_words[4] != 0 && address->s6_words[4] != 0xffff)
1398         return FALSE;
1399     if (address->s6_words[4] == 0 && address->s6_words[5] != 0 && address->s6_words[5] != 0xffff)
1400         return FALSE;
1401     if (address->s6_words[4] == 0xffff && address->s6_words[5] != 0)
1402         return FALSE;
1403     if (address->s6_words[6] == 0)
1404         return FALSE;
1405     return TRUE;
1406 }
1407
1408 /***********************************************************************
1409  * RtlIpv6AddressToStringExA [NTDLL.@]
1410  */
1411 NTSTATUS WINAPI RtlIpv6AddressToStringExA(const IN6_ADDR *address, ULONG scope, USHORT port, char *str, ULONG *size)
1412 {
1413     char buffer[64], *p = buffer;
1414     int i, len, gap = -1, gap_len = 1, ipv6_end = 8;
1415     ULONG needed;
1416     NTSTATUS ret;
1417
1418     TRACE("(%p %lu %u %p %p)\n", address, scope, port, str, size);
1419
1420     if (!address || !str || !size)
1421         return STATUS_INVALID_PARAMETER;
1422
1423     if (is_ipv4_in_ipv6(address))
1424         ipv6_end = 6;
1425
1426     for (i = 0; i < ipv6_end; i++)
1427     {
1428         len = 0;
1429         while (!address->s6_words[i] && i < ipv6_end)
1430         {
1431             i++;
1432             len++;
1433         }
1434         if (len > gap_len)
1435         {
1436             gap = i - len;
1437             gap_len = len;
1438         }
1439     }
1440
1441     if (port) p += sprintf(p, "[");
1442
1443     i = 0;
1444     while (i < ipv6_end)
1445     {
1446         if (i == gap)
1447         {
1448             p += sprintf(p, ":");
1449             i += gap_len;
1450             if (i == ipv6_end) p += sprintf(p, ":");
1451             continue;
1452         }
1453         if (i > 0) p += sprintf(p, ":");
1454         p += sprintf(p, "%x", ntohs(address->s6_words[i]));
1455         i++;
1456     }
1457
1458     if (ipv6_end == 6)
1459     {
1460         if (p[-1] != ':') p += sprintf(p, ":");
1461         p = RtlIpv4AddressToStringA((IN_ADDR *)(address->s6_words + 6), p);
1462     }
1463
1464     if (scope) p += sprintf(p, "%%%lu", scope);
1465
1466     if (port) p += sprintf(p, "]:%u", ntohs(port));
1467
1468     needed = p - buffer + 1;
1469
1470     if (*size >= needed)
1471     {
1472         strcpy(str, buffer);
1473         ret = STATUS_SUCCESS;
1474     }
1475     else
1476     {
1477         ret = STATUS_INVALID_PARAMETER;
1478     }
1479
1480     *size = needed;
1481     return ret;
1482 }
1483
1484 /***********************************************************************
1485  * RtlIpv6AddressToStringA [NTDLL.@]
1486  */
1487 char * WINAPI RtlIpv6AddressToStringA(const IN6_ADDR *address, char *str)
1488 {
1489     ULONG size = 46;
1490     if (!address || !str) return str - 1;
1491     str[45] = 0; /* this byte is set even though the string is always shorter */
1492     RtlIpv6AddressToStringExA(address, 0, 0, str, &size);
1493     return str + size - 1;
1494 }
1495
1496 /***********************************************************************
1497  * RtlIpv6AddressToStringExW [NTDLL.@]
1498  */
1499 NTSTATUS WINAPI RtlIpv6AddressToStringExW(const IN6_ADDR *address, ULONG scope, USHORT port, WCHAR *str, ULONG *size)
1500 {
1501     char cstr[64];
1502     NTSTATUS ret = RtlIpv6AddressToStringExA(address, scope, port, cstr, size);
1503     if (ret == STATUS_SUCCESS) RtlMultiByteToUnicodeN(str, *size * sizeof(WCHAR), NULL, cstr, *size);
1504     return ret;
1505 }
1506
1507 /***********************************************************************
1508  * RtlIpv6AddressToStringW [NTDLL.@]
1509  */
1510 WCHAR * WINAPI RtlIpv6AddressToStringW(const IN6_ADDR *address, WCHAR *str)
1511 {
1512     ULONG size = 46;
1513     if (!address || !str) return str;
1514     str[45] = 0; /* this word is set even though the string is always shorter */
1515     if (RtlIpv6AddressToStringExW(address, 0, 0, str, &size) != STATUS_SUCCESS)
1516         return str;
1517     return str + size - 1;
1518 }
1519
1520 /***********************************************************************
1521  * get_pointer_obfuscator (internal)
1522  */
1523 static DWORD_PTR get_pointer_obfuscator( void )
1524 {
1525     static DWORD_PTR pointer_obfuscator;
1526
1527     if (!pointer_obfuscator)
1528     {
1529         ULONG seed = NtGetTickCount();
1530         ULONG_PTR rand;
1531
1532         /* generate a random value for the obfuscator */
1533         rand = RtlUniform( &seed );
1534
1535         /* handle 64bit pointers */
1536         rand ^= (ULONG_PTR)RtlUniform( &seed ) << ((sizeof (DWORD_PTR) - sizeof (ULONG))*8);
1537
1538         /* set the high bits so dereferencing obfuscated pointers will (usually) crash */
1539         rand |= (ULONG_PTR)0xc0000000 << ((sizeof (DWORD_PTR) - sizeof (ULONG))*8);
1540
1541         InterlockedCompareExchangePointer( (void**) &pointer_obfuscator, (void*) rand, NULL );
1542     }
1543
1544     return pointer_obfuscator;
1545 }
1546
1547 /*************************************************************************
1548  * RtlEncodePointer   [NTDLL.@]
1549  */
1550 PVOID WINAPI RtlEncodePointer( PVOID ptr )
1551 {
1552     DWORD_PTR ptrval = (DWORD_PTR) ptr;
1553     return (PVOID)(ptrval ^ get_pointer_obfuscator());
1554 }
1555
1556 PVOID WINAPI RtlDecodePointer( PVOID ptr )
1557 {
1558     DWORD_PTR ptrval = (DWORD_PTR) ptr;
1559     return (PVOID)(ptrval ^ get_pointer_obfuscator());
1560 }
1561
1562 /*************************************************************************
1563  * RtlInitializeSListHead   [NTDLL.@]
1564  */
1565 VOID WINAPI RtlInitializeSListHead(PSLIST_HEADER list)
1566 {
1567 #ifdef _WIN64
1568     list->Alignment = list->Region = 0;
1569     list->Header16.HeaderType = 1;  /* we use the 16-byte header */
1570 #else
1571     list->Alignment = 0;
1572 #endif
1573 }
1574
1575 /*************************************************************************
1576  * RtlQueryDepthSList   [NTDLL.@]
1577  */
1578 WORD WINAPI RtlQueryDepthSList(PSLIST_HEADER list)
1579 {
1580 #ifdef _WIN64
1581     return list->Header16.Depth;
1582 #else
1583     return list->Depth;
1584 #endif
1585 }
1586
1587 /*************************************************************************
1588  * RtlFirstEntrySList   [NTDLL.@]
1589  */
1590 PSLIST_ENTRY WINAPI RtlFirstEntrySList(const SLIST_HEADER* list)
1591 {
1592 #ifdef _WIN64
1593     return (SLIST_ENTRY *)((ULONG_PTR)list->Header16.NextEntry << 4);
1594 #else
1595     return list->Next.Next;
1596 #endif
1597 }
1598
1599 /*************************************************************************
1600  * RtlInterlockedFlushSList   [NTDLL.@]
1601  */
1602 PSLIST_ENTRY WINAPI RtlInterlockedFlushSList(PSLIST_HEADER list)
1603 {
1604     SLIST_HEADER old, new;
1605
1606 #ifdef _WIN64
1607     if (!list->Header16.NextEntry) return NULL;
1608     new.Alignment = new.Region = 0;
1609     new.Header16.HeaderType = 1;  /* we use the 16-byte header */
1610     do
1611     {
1612         old = *list;
1613         new.Header16.Sequence = old.Header16.Sequence + 1;
1614     } while (!InterlockedCompareExchange128((__int64 *)list, new.Region, new.Alignment, (__int64 *)&old));
1615     return (SLIST_ENTRY *)((ULONG_PTR)old.Header16.NextEntry << 4);
1616 #else
1617     if (!list->Next.Next) return NULL;
1618     new.Alignment = 0;
1619     do
1620     {
1621         old = *list;
1622         new.Sequence = old.Sequence + 1;
1623     } while (InterlockedCompareExchange64((__int64 *)&list->Alignment, new.Alignment,
1624                                           old.Alignment) != old.Alignment);
1625     return old.Next.Next;
1626 #endif
1627 }
1628
1629 /*************************************************************************
1630  * RtlInterlockedPushEntrySList   [NTDLL.@]
1631  */
1632 PSLIST_ENTRY WINAPI RtlInterlockedPushEntrySList(PSLIST_HEADER list, PSLIST_ENTRY entry)
1633 {
1634     SLIST_HEADER old, new;
1635
1636 #ifdef _WIN64
1637     new.Header16.NextEntry = (ULONG_PTR)entry >> 4;
1638     do
1639     {
1640         old = *list;
1641         entry->Next = (SLIST_ENTRY *)((ULONG_PTR)old.Header16.NextEntry << 4);
1642         new.Header16.Depth = old.Header16.Depth + 1;
1643         new.Header16.Sequence = old.Header16.Sequence + 1;
1644     } while (!InterlockedCompareExchange128((__int64 *)list, new.Region, new.Alignment, (__int64 *)&old));
1645     return (SLIST_ENTRY *)((ULONG_PTR)old.Header16.NextEntry << 4);
1646 #else
1647     new.Next.Next = entry;
1648     do
1649     {
1650         old = *list;
1651         entry->Next = old.Next.Next;
1652         new.Depth = old.Depth + 1;
1653         new.Sequence = old.Sequence + 1;
1654     } while (InterlockedCompareExchange64((__int64 *)&list->Alignment, new.Alignment,
1655                                           old.Alignment) != old.Alignment);
1656     return old.Next.Next;
1657 #endif
1658 }
1659
1660 /*************************************************************************
1661  * RtlInterlockedPopEntrySList   [NTDLL.@]
1662  */
1663 PSLIST_ENTRY WINAPI RtlInterlockedPopEntrySList(PSLIST_HEADER list)
1664 {
1665     SLIST_HEADER old, new;
1666     PSLIST_ENTRY entry;
1667
1668 #ifdef _WIN64
1669     do
1670     {
1671         old = *list;
1672         if (!(entry = (SLIST_ENTRY *)((ULONG_PTR)old.Header16.NextEntry << 4))) return NULL;
1673         /* entry could be deleted by another thread */
1674         __TRY
1675         {
1676             new.Header16.NextEntry = (ULONG_PTR)entry->Next >> 4;
1677             new.Header16.Depth = old.Header16.Depth - 1;
1678             new.Header16.Sequence = old.Header16.Sequence + 1;
1679         }
1680         __EXCEPT_PAGE_FAULT
1681         {
1682         }
1683         __ENDTRY
1684     } while (!InterlockedCompareExchange128((__int64 *)list, new.Region, new.Alignment, (__int64 *)&old));
1685 #else
1686     do
1687     {
1688         old = *list;
1689         if (!(entry = old.Next.Next)) return NULL;
1690         /* entry could be deleted by another thread */
1691         __TRY
1692         {
1693             new.Next.Next = entry->Next;
1694             new.Depth = old.Depth - 1;
1695             new.Sequence = old.Sequence + 1;
1696         }
1697         __EXCEPT_PAGE_FAULT
1698         {
1699         }
1700         __ENDTRY
1701     } while (InterlockedCompareExchange64((__int64 *)&list->Alignment, new.Alignment,
1702                                           old.Alignment) != old.Alignment);
1703 #endif
1704     return entry;
1705 }
1706
1707 /*************************************************************************
1708  * RtlInterlockedPushListSListEx   [NTDLL.@]
1709  */
1710 PSLIST_ENTRY WINAPI RtlInterlockedPushListSListEx(PSLIST_HEADER list, PSLIST_ENTRY first,
1711                                                   PSLIST_ENTRY last, ULONG count)
1712 {
1713     SLIST_HEADER old, new;
1714
1715 #ifdef _WIN64
1716     new.Header16.NextEntry = (ULONG_PTR)first >> 4;
1717     do
1718     {
1719         old = *list;
1720         new.Header16.Depth = old.Header16.Depth + count;
1721         new.Header16.Sequence = old.Header16.Sequence + 1;
1722         last->Next = (SLIST_ENTRY *)((ULONG_PTR)old.Header16.NextEntry << 4);
1723     } while (!InterlockedCompareExchange128((__int64 *)list, new.Region, new.Alignment, (__int64 *)&old));
1724     return (SLIST_ENTRY *)((ULONG_PTR)old.Header16.NextEntry << 4);
1725 #else
1726     new.Next.Next = first;
1727     do
1728     {
1729         old = *list;
1730         new.Depth = old.Depth + count;
1731         new.Sequence = old.Sequence + 1;
1732         last->Next = old.Next.Next;
1733     } while (InterlockedCompareExchange64((__int64 *)&list->Alignment, new.Alignment,
1734                                           old.Alignment) != old.Alignment);
1735     return old.Next.Next;
1736 #endif
1737 }
1738
1739 /*************************************************************************
1740  * RtlInterlockedPushListSList   [NTDLL.@]
1741  */
1742 DEFINE_FASTCALL_WRAPPER(RtlInterlockedPushListSList, 16)
1743 PSLIST_ENTRY FASTCALL RtlInterlockedPushListSList(PSLIST_HEADER list, PSLIST_ENTRY first,
1744                                                   PSLIST_ENTRY last, ULONG count)
1745 {
1746     return RtlInterlockedPushListSListEx(list, first, last, count);
1747 }
1748
1749 /******************************************************************************
1750  *  RtlGetCompressionWorkSpaceSize              [NTDLL.@]
1751  */
1752 NTSTATUS WINAPI RtlGetCompressionWorkSpaceSize(USHORT format, PULONG compress_workspace,
1753                                                PULONG decompress_workspace)
1754 {
1755     FIXME("0x%04x, %p, %p: semi-stub\n", format, compress_workspace, decompress_workspace);
1756
1757     switch (format & ~COMPRESSION_ENGINE_MAXIMUM)
1758     {
1759         case COMPRESSION_FORMAT_LZNT1:
1760             if (compress_workspace)
1761             {
1762                 /* FIXME: The current implementation of RtlCompressBuffer does not use a
1763                  * workspace buffer, but Windows applications might expect a nonzero value. */
1764                 *compress_workspace = 16;
1765             }
1766             if (decompress_workspace)
1767                 *decompress_workspace = 0x1000;
1768             return STATUS_SUCCESS;
1769
1770         case COMPRESSION_FORMAT_NONE:
1771         case COMPRESSION_FORMAT_DEFAULT:
1772             return STATUS_INVALID_PARAMETER;
1773
1774         default:
1775             FIXME("format %u not implemented\n", format);
1776             return STATUS_UNSUPPORTED_COMPRESSION;
1777     }
1778 }
1779
1780 /* compress data using LZNT1, currently only a stub */
1781 static NTSTATUS lznt1_compress(UCHAR *src, ULONG src_size, UCHAR *dst, ULONG dst_size,
1782                                ULONG chunk_size, ULONG *final_size, UCHAR *workspace)
1783 {
1784     UCHAR *src_cur = src, *src_end = src + src_size;
1785     UCHAR *dst_cur = dst, *dst_end = dst + dst_size;
1786     ULONG block_size;
1787
1788     while (src_cur < src_end)
1789     {
1790         /* determine size of current chunk */
1791         block_size = min(0x1000, src_end - src_cur);
1792         if (dst_cur + sizeof(WORD) + block_size > dst_end)
1793             return STATUS_BUFFER_TOO_SMALL;
1794
1795         /* write (uncompressed) chunk header */
1796         *(WORD *)dst_cur = 0x3000 | (block_size - 1);
1797         dst_cur += sizeof(WORD);
1798
1799         /* write chunk content */
1800         memcpy(dst_cur, src_cur, block_size);
1801         dst_cur += block_size;
1802         src_cur += block_size;
1803     }
1804
1805     if (final_size)
1806         *final_size = dst_cur - dst;
1807
1808     return STATUS_SUCCESS;
1809 }
1810
1811 /******************************************************************************
1812  *  RtlCompressBuffer           [NTDLL.@]
1813  */
1814 NTSTATUS WINAPI RtlCompressBuffer(USHORT format, PUCHAR uncompressed, ULONG uncompressed_size,
1815                                   PUCHAR compressed, ULONG compressed_size, ULONG chunk_size,
1816                                   PULONG final_size, PVOID workspace)
1817 {
1818     FIXME("0x%04x, %p, %lu, %p, %lu, %lu, %p, %p: semi-stub\n", format, uncompressed,
1819           uncompressed_size, compressed, compressed_size, chunk_size, final_size, workspace);
1820
1821     switch (format & ~COMPRESSION_ENGINE_MAXIMUM)
1822     {
1823         case COMPRESSION_FORMAT_LZNT1:
1824             return lznt1_compress(uncompressed, uncompressed_size, compressed,
1825                                   compressed_size, chunk_size, final_size, workspace);
1826
1827         case COMPRESSION_FORMAT_NONE:
1828         case COMPRESSION_FORMAT_DEFAULT:
1829             return STATUS_INVALID_PARAMETER;
1830
1831         default:
1832             FIXME("format %u not implemented\n", format);
1833             return STATUS_UNSUPPORTED_COMPRESSION;
1834     }
1835 }
1836
1837 /* decompress a single LZNT1 chunk */
1838 static UCHAR *lznt1_decompress_chunk(UCHAR *dst, ULONG dst_size, UCHAR *src, ULONG src_size)
1839 {
1840     UCHAR *src_cur = src, *src_end = src + src_size;
1841     UCHAR *dst_cur = dst, *dst_end = dst + dst_size;
1842     ULONG displacement_bits, length_bits;
1843     ULONG code_displacement, code_length;
1844     WORD flags, code;
1845
1846     while (src_cur < src_end && dst_cur < dst_end)
1847     {
1848         flags = 0x8000 | *src_cur++;
1849         while ((flags & 0xff00) && src_cur < src_end)
1850         {
1851             if (flags & 1)
1852             {
1853                 /* backwards reference */
1854                 if (src_cur + sizeof(WORD) > src_end)
1855                     return NULL;
1856
1857                 code = *(WORD *)src_cur;
1858                 src_cur += sizeof(WORD);
1859
1860                 /* find length / displacement bits */
1861                 for (displacement_bits = 12; displacement_bits > 4; displacement_bits--)
1862                     if ((1 << (displacement_bits - 1)) < dst_cur - dst) break;
1863
1864                 length_bits       = 16 - displacement_bits;
1865                 code_length       = (code & ((1 << length_bits) - 1)) + 3;
1866                 code_displacement = (code >> length_bits) + 1;
1867
1868                 if (dst_cur < dst + code_displacement)
1869                     return NULL;
1870
1871                 /* copy bytes of chunk - we can't use memcpy() since source and dest can
1872                  * be overlapping, and the same bytes can be repeated over and over again */
1873                 while (code_length--)
1874                 {
1875                     if (dst_cur >= dst_end) return dst_cur;
1876                     *dst_cur = *(dst_cur - code_displacement);
1877                     dst_cur++;
1878                 }
1879             }
1880             else
1881             {
1882                 /* uncompressed data */
1883                 if (dst_cur >= dst_end) return dst_cur;
1884                 *dst_cur++ = *src_cur++;
1885             }
1886             flags >>= 1;
1887         }
1888     }
1889
1890     return dst_cur;
1891 }
1892
1893 /* decompress data encoded with LZNT1 */
1894 static NTSTATUS lznt1_decompress(UCHAR *dst, ULONG dst_size, UCHAR *src, ULONG src_size,
1895                                  ULONG offset, ULONG *final_size, UCHAR *workspace)
1896 {
1897     UCHAR *src_cur = src, *src_end = src + src_size;
1898     UCHAR *dst_cur = dst, *dst_end = dst + dst_size;
1899     ULONG chunk_size, block_size;
1900     WORD chunk_header;
1901     UCHAR *ptr;
1902
1903     if (src_cur + sizeof(WORD) > src_end)
1904         return STATUS_BAD_COMPRESSION_BUFFER;
1905
1906     /* skip over chunks with a distance >= 0x1000 to the destination offset */
1907     while (offset >= 0x1000 && src_cur + sizeof(WORD) <= src_end)
1908     {
1909         chunk_header = *(WORD *)src_cur;
1910         src_cur += sizeof(WORD);
1911         if (!chunk_header) goto out;
1912         chunk_size = (chunk_header & 0xfff) + 1;
1913
1914         if (src_cur + chunk_size > src_end)
1915             return STATUS_BAD_COMPRESSION_BUFFER;
1916
1917         src_cur += chunk_size;
1918         offset  -= 0x1000;
1919     }
1920
1921     /* handle partially included chunk */
1922     if (offset && src_cur + sizeof(WORD) <= src_end)
1923     {
1924         chunk_header = *(WORD *)src_cur;
1925         src_cur += sizeof(WORD);
1926         if (!chunk_header) goto out;
1927         chunk_size = (chunk_header & 0xfff) + 1;
1928
1929         if (src_cur + chunk_size > src_end)
1930             return STATUS_BAD_COMPRESSION_BUFFER;
1931
1932         if (dst_cur >= dst_end)
1933             goto out;
1934
1935         if (chunk_header & 0x8000)
1936         {
1937             /* compressed chunk */
1938             if (!workspace) return STATUS_ACCESS_VIOLATION;
1939             ptr = lznt1_decompress_chunk(workspace, 0x1000, src_cur, chunk_size);
1940             if (!ptr) return STATUS_BAD_COMPRESSION_BUFFER;
1941             if (ptr - workspace > offset)
1942             {
1943                 block_size = min((ptr - workspace) - offset, dst_end - dst_cur);
1944                 memcpy(dst_cur, workspace + offset, block_size);
1945                 dst_cur += block_size;
1946             }
1947         }
1948         else
1949         {
1950             /* uncompressed chunk */
1951             if (chunk_size > offset)
1952             {
1953                 block_size = min(chunk_size - offset, dst_end - dst_cur);
1954                 memcpy(dst_cur, src_cur + offset, block_size);
1955                 dst_cur += block_size;
1956             }
1957         }
1958
1959         src_cur += chunk_size;
1960     }
1961
1962     /* handle remaining chunks */
1963     while (src_cur + sizeof(WORD) <= src_end)
1964     {
1965         chunk_header = *(WORD *)src_cur;
1966         src_cur += sizeof(WORD);
1967         if (!chunk_header) goto out;
1968         chunk_size = (chunk_header & 0xfff) + 1;
1969
1970         if (src_cur + chunk_size > src_end)
1971             return STATUS_BAD_COMPRESSION_BUFFER;
1972
1973         /* fill space with padding when the previous chunk was decompressed
1974          * to less than 4096 bytes. no padding is needed for the last chunk
1975          * or when the next chunk is truncated */
1976         block_size = ((dst_cur - dst) + offset) & 0xfff;
1977         if (block_size)
1978         {
1979             block_size = 0x1000 - block_size;
1980             if (dst_cur + block_size >= dst_end)
1981                 goto out;
1982             memset(dst_cur, 0, block_size);
1983             dst_cur += block_size;
1984         }
1985
1986         if (dst_cur >= dst_end)
1987             goto out;
1988
1989         if (chunk_header & 0x8000)
1990         {
1991             /* compressed chunk */
1992             dst_cur = lznt1_decompress_chunk(dst_cur, dst_end - dst_cur, src_cur, chunk_size);
1993             if (!dst_cur) return STATUS_BAD_COMPRESSION_BUFFER;
1994         }
1995         else
1996         {
1997             /* uncompressed chunk */
1998             block_size = min(chunk_size, dst_end - dst_cur);
1999             memcpy(dst_cur, src_cur, block_size);
2000             dst_cur += block_size;
2001         }
2002
2003         src_cur += chunk_size;
2004     }
2005
2006 out:
2007     if (final_size)
2008         *final_size = dst_cur - dst;
2009
2010     return STATUS_SUCCESS;
2011
2012 }
2013
2014 /******************************************************************************
2015  *  RtlDecompressFragment       [NTDLL.@]
2016  */
2017 NTSTATUS WINAPI RtlDecompressFragment(USHORT format, PUCHAR uncompressed, ULONG uncompressed_size,
2018                                PUCHAR compressed, ULONG compressed_size, ULONG offset,
2019                                PULONG final_size, PVOID workspace)
2020 {
2021     TRACE("0x%04x, %p, %lu, %p, %lu, %lu, %p, %p\n", format, uncompressed,
2022           uncompressed_size, compressed, compressed_size, offset, final_size, workspace);
2023
2024     switch (format & ~COMPRESSION_ENGINE_MAXIMUM)
2025     {
2026         case COMPRESSION_FORMAT_LZNT1:
2027             return lznt1_decompress(uncompressed, uncompressed_size, compressed,
2028                                     compressed_size, offset, final_size, workspace);
2029
2030         case COMPRESSION_FORMAT_NONE:
2031         case COMPRESSION_FORMAT_DEFAULT:
2032             return STATUS_INVALID_PARAMETER;
2033
2034         default:
2035             FIXME("format %u not implemented\n", format);
2036             return STATUS_UNSUPPORTED_COMPRESSION;
2037     }
2038 }
2039
2040
2041 /******************************************************************************
2042  *  RtlDecompressBuffer         [NTDLL.@]
2043  */
2044 NTSTATUS WINAPI RtlDecompressBuffer(USHORT format, PUCHAR uncompressed, ULONG uncompressed_size,
2045                                     PUCHAR compressed, ULONG compressed_size, PULONG final_size)
2046 {
2047     TRACE("0x%04x, %p, %lu, %p, %lu, %p\n", format, uncompressed,
2048         uncompressed_size, compressed, compressed_size, final_size);
2049
2050     return RtlDecompressFragment(format, uncompressed, uncompressed_size,
2051                                  compressed, compressed_size, 0, final_size, NULL);
2052 }
2053
2054 /***********************************************************************
2055  *  RtlSetThreadErrorMode       [NTDLL.@]
2056  *
2057  * Set the thread local error mode.
2058  *
2059  * PARAMS
2060  *  mode    [I] The new error mode
2061  *  oldmode [O] Destination of the old error mode (may be NULL)
2062  *
2063  * RETURNS
2064  *  Success: STATUS_SUCCESS
2065  *  Failure: STATUS_INVALID_PARAMETER_1
2066  */
2067 NTSTATUS WINAPI RtlSetThreadErrorMode( DWORD mode, LPDWORD oldmode )
2068 {
2069     if (mode & ~0x70)
2070         return STATUS_INVALID_PARAMETER_1;
2071
2072     if (oldmode)
2073         *oldmode = NtCurrentTeb()->HardErrorMode;
2074
2075     NtCurrentTeb()->HardErrorMode = mode;
2076     return STATUS_SUCCESS;
2077 }
2078
2079 /***********************************************************************
2080  *  RtlGetThreadErrorMode       [NTDLL.@]
2081  *
2082  * Get the thread local error mode.
2083  *
2084  * PARAMS
2085  *  None.
2086  *
2087  * RETURNS
2088  *  The current thread local error mode.
2089  */
2090 DWORD WINAPI RtlGetThreadErrorMode( void )
2091 {
2092     return NtCurrentTeb()->HardErrorMode;
2093 }
2094
2095 /******************************************************************************
2096  * RtlGetCurrentTransaction [NTDLL.@]
2097  */
2098 HANDLE WINAPI RtlGetCurrentTransaction(void)
2099 {
2100     FIXME("() :stub\n");
2101     return NULL;
2102 }
2103
2104 /******************************************************************************
2105  * RtlSetCurrentTransaction [NTDLL.@]
2106  */
2107 BOOL WINAPI RtlSetCurrentTransaction(HANDLE new_transaction)
2108 {
2109     FIXME("(%p) :stub\n", new_transaction);
2110     return FALSE;
2111 }
2112
2113 /**********************************************************************
2114  *           RtlGetCurrentProcessorNumberEx [NTDLL.@]
2115  */
2116 void WINAPI RtlGetCurrentProcessorNumberEx(PROCESSOR_NUMBER *processor)
2117 {
2118     FIXME("(%p) :semi-stub\n", processor);
2119     processor->Group = 0;
2120     processor->Number = NtGetCurrentProcessorNumber();
2121     processor->Reserved = 0;
2122 }
2123
2124 /***********************************************************************
2125  *           RtlIsProcessorFeaturePresent [NTDLL.@]
2126  */
2127 BOOLEAN WINAPI RtlIsProcessorFeaturePresent( UINT feature )
2128 {
2129 #ifdef __aarch64__
2130     static const ULONGLONG arm64_features =
2131         (1ull << PF_COMPARE_EXCHANGE_DOUBLE) |
2132         (1ull << PF_NX_ENABLED) |
2133         (1ull << PF_ARM_VFP_32_REGISTERS_AVAILABLE) |
2134         (1ull << PF_ARM_NEON_INSTRUCTIONS_AVAILABLE) |
2135         (1ull << PF_SECOND_LEVEL_ADDRESS_TRANSLATION) |
2136         (1ull << PF_FASTFAIL_AVAILABLE) |
2137         (1ull << PF_ARM_DIVIDE_INSTRUCTION_AVAILABLE) |
2138         (1ull << PF_ARM_64BIT_LOADSTORE_ATOMIC) |
2139         (1ull << PF_ARM_EXTERNAL_CACHE_AVAILABLE) |
2140         (1ull << PF_ARM_FMAC_INSTRUCTIONS_AVAILABLE) |
2141         (1ull << PF_ARM_V8_INSTRUCTIONS_AVAILABLE) |
2142         (1ull << PF_ARM_V8_CRYPTO_INSTRUCTIONS_AVAILABLE) |
2143         (1ull << PF_ARM_V8_CRC32_INSTRUCTIONS_AVAILABLE) |
2144         (1ull << PF_ARM_V81_ATOMIC_INSTRUCTIONS_AVAILABLE) |
2145         (1ull << PF_ARM_V82_DP_INSTRUCTIONS_AVAILABLE) |
2146         (1ull << PF_ARM_V83_JSCVT_INSTRUCTIONS_AVAILABLE) |
2147         (1ull << PF_ARM_V83_LRCPC_INSTRUCTIONS_AVAILABLE);
2148
2149     return (feature < PROCESSOR_FEATURE_MAX && (arm64_features & (1ull << feature)) &&
2150             user_shared_data->ProcessorFeatures[feature]);
2151 #elif defined _WIN64
2152     return feature < PROCESSOR_FEATURE_MAX && user_shared_data->ProcessorFeatures[feature];
2153 #else
2154     return NtWow64IsProcessorFeaturePresent( feature );
2155 #endif
2156 }
2157
2158 /***********************************************************************
2159  *           RtlInitializeGenericTableAvl  (NTDLL.@)
2160  */
2161 void WINAPI RtlInitializeGenericTableAvl(PRTL_AVL_TABLE table, PRTL_AVL_COMPARE_ROUTINE compare,
2162                                          PRTL_AVL_ALLOCATE_ROUTINE allocate, PRTL_AVL_FREE_ROUTINE free, void *context)
2163 {
2164     FIXME("%p %p %p %p %p: stub\n", table, compare, allocate, free, context);
2165 }
2166
2167 /***********************************************************************
2168  *           RtlInsertElementGenericTableAvl  (NTDLL.@)
2169  */
2170 void WINAPI RtlInsertElementGenericTableAvl(PRTL_AVL_TABLE table, void *buffer, ULONG size, BOOL *element)
2171 {
2172     FIXME("%p %p %lu %p: stub\n", table, buffer, size, element);
2173 }
2174
2175 /*********************************************************************
2176  *           RtlQueryPackageIdentity [NTDLL.@]
2177  */
2178 NTSTATUS WINAPI RtlQueryPackageIdentity(HANDLE token, WCHAR *fullname, SIZE_T *fullname_size,
2179                                         WCHAR *appid, SIZE_T *appid_size, BOOLEAN *packaged)
2180 {
2181     FIXME("(%p, %p, %p, %p, %p, %p): stub\n", token, fullname, fullname_size, appid, appid_size, packaged);
2182     return STATUS_NOT_FOUND;
2183 }
2184
2185 /*********************************************************************
2186  *           RtlQueryProcessPlaceholderCompatibilityMode [NTDLL.@]
2187  */
2188 char WINAPI RtlQueryProcessPlaceholderCompatibilityMode(void)
2189 {
2190     FIXME("stub\n");
2191     return PHCM_APPLICATION_DEFAULT;
2192 }