846 lines
25 KiB
C
846 lines
25 KiB
C
/*
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* NT basis DLL
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*
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* This file contains the Rtl* API functions. These should be implementable.
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*
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* Copyright 1996-1998 Marcus Meissner
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* Copyright 1999 Alex Korobka
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* Copyright 2003 Thomas Mertes
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* Crc32 code Copyright 1986 Gary S. Brown (Public domain)
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include "config.h"
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#include "wine/port.h"
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include "windef.h"
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#include "winerror.h"
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#include "winternl.h"
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#include "winreg.h"
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#include "wine/unicode.h"
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#include "wine/debug.h"
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#include "ntdll_misc.h"
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WINE_DEFAULT_DEBUG_CHANNEL(ntdll);
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static CRITICAL_SECTION peb_lock;
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static CRITICAL_SECTION_DEBUG critsect_debug =
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{
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0, 0, &peb_lock,
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{ &critsect_debug.ProcessLocksList, &critsect_debug.ProcessLocksList },
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0, 0, { 0, (DWORD)(__FILE__ ": peb_lock") }
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};
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static CRITICAL_SECTION peb_lock = { &critsect_debug, -1, 0, 0, 0, 0 };
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/* CRC polynomial 0xedb88320 */
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static const DWORD CRC_table[256] =
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{
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0x00000000, 0x77073096, 0xee0e612c, 0x990951ba, 0x076dc419, 0x706af48f,
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0xe963a535, 0x9e6495a3, 0x0edb8832, 0x79dcb8a4, 0xe0d5e91e, 0x97d2d988,
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0x09b64c2b, 0x7eb17cbd, 0xe7b82d07, 0x90bf1d91, 0x1db71064, 0x6ab020f2,
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0xf3b97148, 0x84be41de, 0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7,
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0x136c9856, 0x646ba8c0, 0xfd62f97a, 0x8a65c9ec, 0x14015c4f, 0x63066cd9,
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0xfa0f3d63, 0x8d080df5, 0x3b6e20c8, 0x4c69105e, 0xd56041e4, 0xa2677172,
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0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b, 0x35b5a8fa, 0x42b2986c,
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0xdbbbc9d6, 0xacbcf940, 0x32d86ce3, 0x45df5c75, 0xdcd60dcf, 0xabd13d59,
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0x26d930ac, 0x51de003a, 0xc8d75180, 0xbfd06116, 0x21b4f4b5, 0x56b3c423,
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0xcfba9599, 0xb8bda50f, 0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924,
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0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d, 0x76dc4190, 0x01db7106,
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0x98d220bc, 0xefd5102a, 0x71b18589, 0x06b6b51f, 0x9fbfe4a5, 0xe8b8d433,
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0x7807c9a2, 0x0f00f934, 0x9609a88e, 0xe10e9818, 0x7f6a0dbb, 0x086d3d2d,
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0x91646c97, 0xe6635c01, 0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e,
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0x6c0695ed, 0x1b01a57b, 0x8208f4c1, 0xf50fc457, 0x65b0d9c6, 0x12b7e950,
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0x8bbeb8ea, 0xfcb9887c, 0x62dd1ddf, 0x15da2d49, 0x8cd37cf3, 0xfbd44c65,
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0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2, 0x4adfa541, 0x3dd895d7,
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0xa4d1c46d, 0xd3d6f4fb, 0x4369e96a, 0x346ed9fc, 0xad678846, 0xda60b8d0,
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0x44042d73, 0x33031de5, 0xaa0a4c5f, 0xdd0d7cc9, 0x5005713c, 0x270241aa,
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0xbe0b1010, 0xc90c2086, 0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f,
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0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4, 0x59b33d17, 0x2eb40d81,
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0xb7bd5c3b, 0xc0ba6cad, 0xedb88320, 0x9abfb3b6, 0x03b6e20c, 0x74b1d29a,
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0xead54739, 0x9dd277af, 0x04db2615, 0x73dc1683, 0xe3630b12, 0x94643b84,
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0x0d6d6a3e, 0x7a6a5aa8, 0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1,
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0xf00f9344, 0x8708a3d2, 0x1e01f268, 0x6906c2fe, 0xf762575d, 0x806567cb,
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0x196c3671, 0x6e6b06e7, 0xfed41b76, 0x89d32be0, 0x10da7a5a, 0x67dd4acc,
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0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5, 0xd6d6a3e8, 0xa1d1937e,
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0x38d8c2c4, 0x4fdff252, 0xd1bb67f1, 0xa6bc5767, 0x3fb506dd, 0x48b2364b,
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0xd80d2bda, 0xaf0a1b4c, 0x36034af6, 0x41047a60, 0xdf60efc3, 0xa867df55,
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0x316e8eef, 0x4669be79, 0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236,
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0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f, 0xc5ba3bbe, 0xb2bd0b28,
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0x2bb45a92, 0x5cb36a04, 0xc2d7ffa7, 0xb5d0cf31, 0x2cd99e8b, 0x5bdeae1d,
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0x9b64c2b0, 0xec63f226, 0x756aa39c, 0x026d930a, 0x9c0906a9, 0xeb0e363f,
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0x72076785, 0x05005713, 0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38,
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0x92d28e9b, 0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21, 0x86d3d2d4, 0xf1d4e242,
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0x68ddb3f8, 0x1fda836e, 0x81be16cd, 0xf6b9265b, 0x6fb077e1, 0x18b74777,
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0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c, 0x8f659eff, 0xf862ae69,
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0x616bffd3, 0x166ccf45, 0xa00ae278, 0xd70dd2ee, 0x4e048354, 0x3903b3c2,
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0xa7672661, 0xd06016f7, 0x4969474d, 0x3e6e77db, 0xaed16a4a, 0xd9d65adc,
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0x40df0b66, 0x37d83bf0, 0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9,
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0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6, 0xbad03605, 0xcdd70693,
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0x54de5729, 0x23d967bf, 0xb3667a2e, 0xc4614ab8, 0x5d681b02, 0x2a6f2b94,
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0xb40bbe37, 0xc30c8ea1, 0x5a05df1b, 0x2d02ef8d
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};
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/*
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* resource functions
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*/
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/***********************************************************************
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* RtlInitializeResource (NTDLL.@)
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*
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* xxxResource() functions implement multiple-reader-single-writer lock.
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* The code is based on information published in WDJ January 1999 issue.
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*/
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void WINAPI RtlInitializeResource(LPRTL_RWLOCK rwl)
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{
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if( rwl )
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{
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rwl->iNumberActive = 0;
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rwl->uExclusiveWaiters = 0;
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rwl->uSharedWaiters = 0;
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rwl->hOwningThreadId = 0;
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rwl->dwTimeoutBoost = 0; /* no info on this one, default value is 0 */
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RtlInitializeCriticalSection( &rwl->rtlCS );
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NtCreateSemaphore( &rwl->hExclusiveReleaseSemaphore, 0, NULL, 0, 65535 );
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NtCreateSemaphore( &rwl->hSharedReleaseSemaphore, 0, NULL, 0, 65535 );
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}
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}
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/***********************************************************************
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* RtlDeleteResource (NTDLL.@)
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*/
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void WINAPI RtlDeleteResource(LPRTL_RWLOCK rwl)
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{
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if( rwl )
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{
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RtlEnterCriticalSection( &rwl->rtlCS );
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if( rwl->iNumberActive || rwl->uExclusiveWaiters || rwl->uSharedWaiters )
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MESSAGE("Deleting active MRSW lock (%p), expect failure\n", rwl );
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rwl->hOwningThreadId = 0;
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rwl->uExclusiveWaiters = rwl->uSharedWaiters = 0;
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rwl->iNumberActive = 0;
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NtClose( rwl->hExclusiveReleaseSemaphore );
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NtClose( rwl->hSharedReleaseSemaphore );
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RtlLeaveCriticalSection( &rwl->rtlCS );
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RtlDeleteCriticalSection( &rwl->rtlCS );
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}
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}
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/***********************************************************************
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* RtlAcquireResourceExclusive (NTDLL.@)
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*/
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BYTE WINAPI RtlAcquireResourceExclusive(LPRTL_RWLOCK rwl, BYTE fWait)
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{
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BYTE retVal = 0;
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if( !rwl ) return 0;
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start:
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RtlEnterCriticalSection( &rwl->rtlCS );
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if( rwl->iNumberActive == 0 ) /* lock is free */
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{
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rwl->iNumberActive = -1;
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retVal = 1;
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}
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else if( rwl->iNumberActive < 0 ) /* exclusive lock in progress */
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{
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if( rwl->hOwningThreadId == (HANDLE)GetCurrentThreadId() )
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{
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retVal = 1;
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rwl->iNumberActive--;
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goto done;
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}
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wait:
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if( fWait )
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{
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rwl->uExclusiveWaiters++;
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RtlLeaveCriticalSection( &rwl->rtlCS );
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if( NtWaitForSingleObject( rwl->hExclusiveReleaseSemaphore, FALSE, NULL ) == WAIT_FAILED )
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goto done;
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goto start; /* restart the acquisition to avoid deadlocks */
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}
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}
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else /* one or more shared locks are in progress */
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if( fWait )
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goto wait;
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if( retVal == 1 )
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rwl->hOwningThreadId = (HANDLE)GetCurrentThreadId();
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done:
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RtlLeaveCriticalSection( &rwl->rtlCS );
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return retVal;
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}
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/***********************************************************************
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* RtlAcquireResourceShared (NTDLL.@)
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*/
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BYTE WINAPI RtlAcquireResourceShared(LPRTL_RWLOCK rwl, BYTE fWait)
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{
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DWORD dwWait = WAIT_FAILED;
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BYTE retVal = 0;
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if( !rwl ) return 0;
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start:
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RtlEnterCriticalSection( &rwl->rtlCS );
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if( rwl->iNumberActive < 0 )
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{
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if( rwl->hOwningThreadId == (HANDLE)GetCurrentThreadId() )
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{
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rwl->iNumberActive--;
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retVal = 1;
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goto done;
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}
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if( fWait )
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{
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rwl->uSharedWaiters++;
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RtlLeaveCriticalSection( &rwl->rtlCS );
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if( (dwWait = NtWaitForSingleObject( rwl->hSharedReleaseSemaphore, FALSE, NULL )) == WAIT_FAILED )
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goto done;
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goto start;
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}
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}
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else
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{
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if( dwWait != WAIT_OBJECT_0 ) /* otherwise RtlReleaseResource() has already done it */
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rwl->iNumberActive++;
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retVal = 1;
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}
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done:
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RtlLeaveCriticalSection( &rwl->rtlCS );
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return retVal;
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}
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/***********************************************************************
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* RtlReleaseResource (NTDLL.@)
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*/
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void WINAPI RtlReleaseResource(LPRTL_RWLOCK rwl)
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{
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RtlEnterCriticalSection( &rwl->rtlCS );
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if( rwl->iNumberActive > 0 ) /* have one or more readers */
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{
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if( --rwl->iNumberActive == 0 )
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{
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if( rwl->uExclusiveWaiters )
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{
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wake_exclusive:
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rwl->uExclusiveWaiters--;
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NtReleaseSemaphore( rwl->hExclusiveReleaseSemaphore, 1, NULL );
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}
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}
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}
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else
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if( rwl->iNumberActive < 0 ) /* have a writer, possibly recursive */
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{
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if( ++rwl->iNumberActive == 0 )
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{
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rwl->hOwningThreadId = 0;
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if( rwl->uExclusiveWaiters )
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goto wake_exclusive;
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else
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if( rwl->uSharedWaiters )
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{
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UINT n = rwl->uSharedWaiters;
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rwl->iNumberActive = rwl->uSharedWaiters; /* prevent new writers from joining until
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* all queued readers have done their thing */
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rwl->uSharedWaiters = 0;
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NtReleaseSemaphore( rwl->hSharedReleaseSemaphore, n, NULL );
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}
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}
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}
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RtlLeaveCriticalSection( &rwl->rtlCS );
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}
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/***********************************************************************
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* RtlDumpResource (NTDLL.@)
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*/
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void WINAPI RtlDumpResource(LPRTL_RWLOCK rwl)
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{
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if( rwl )
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{
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MESSAGE("RtlDumpResource(%p):\n\tactive count = %i\n\twaiting readers = %i\n\twaiting writers = %i\n",
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rwl, rwl->iNumberActive, rwl->uSharedWaiters, rwl->uExclusiveWaiters );
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if( rwl->iNumberActive )
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MESSAGE("\towner thread = %p\n", rwl->hOwningThreadId );
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}
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}
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/*
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* misc functions
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*/
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/******************************************************************************
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* DbgPrint [NTDLL.@]
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*/
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void WINAPIV DbgPrint(LPCSTR fmt, ...)
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{
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char buf[512];
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va_list args;
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va_start(args, fmt);
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vsprintf(buf,fmt, args);
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va_end(args);
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MESSAGE("DbgPrint says: %s",buf);
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/* hmm, raise exception? */
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}
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/******************************************************************************
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* RtlAcquirePebLock [NTDLL.@]
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*/
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VOID WINAPI RtlAcquirePebLock(void)
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{
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RtlEnterCriticalSection( &peb_lock );
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}
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/******************************************************************************
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* RtlReleasePebLock [NTDLL.@]
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*/
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VOID WINAPI RtlReleasePebLock(void)
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{
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RtlLeaveCriticalSection( &peb_lock );
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}
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/******************************************************************************
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* RtlNewSecurityObject [NTDLL.@]
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*/
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DWORD WINAPI RtlNewSecurityObject(DWORD x1,DWORD x2,DWORD x3,DWORD x4,DWORD x5,DWORD x6) {
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FIXME("(0x%08lx,0x%08lx,0x%08lx,0x%08lx,0x%08lx,0x%08lx),stub!\n",x1,x2,x3,x4,x5,x6);
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return 0;
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}
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/******************************************************************************
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* RtlDeleteSecurityObject [NTDLL.@]
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*/
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DWORD WINAPI RtlDeleteSecurityObject(DWORD x1) {
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FIXME("(0x%08lx),stub!\n",x1);
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return 0;
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}
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/**************************************************************************
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* RtlNormalizeProcessParams [NTDLL.@]
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*/
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LPVOID WINAPI RtlNormalizeProcessParams(LPVOID x)
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{
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FIXME("(%p), stub\n",x);
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return x;
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}
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/**************************************************************************
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* RtlGetNtProductType [NTDLL.@]
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*/
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BOOLEAN WINAPI RtlGetNtProductType(LPDWORD type)
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{
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FIXME("(%p): stub\n", type);
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*type=3; /* dunno. 1 for client, 3 for server? */
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return 1;
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}
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/**************************************************************************
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* _chkstk [NTDLL.@]
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*
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* Glorified "enter xxxx".
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*/
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void WINAPI NTDLL_chkstk( CONTEXT86 *context )
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{
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context->Esp -= context->Eax;
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}
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/**************************************************************************
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* _alloca_probe [NTDLL.@]
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*
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* Glorified "enter xxxx".
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*/
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void WINAPI NTDLL_alloca_probe( CONTEXT86 *context )
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{
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context->Esp -= context->Eax;
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}
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/******************************************************************************
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* RtlInitializeGenericTable [NTDLL.@]
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*/
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PVOID WINAPI RtlInitializeGenericTable(PVOID pTable, PVOID arg2, PVOID arg3, PVOID arg4, PVOID arg5)
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{
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FIXME("(%p,%p,%p,%p,%p) stub!\n", pTable, arg2, arg3, arg4, arg5);
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return NULL;
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}
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/******************************************************************************
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* RtlMoveMemory [NTDLL.@]
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*
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* Move a block of memory that may overlap.
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*
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* PARAMS
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* Destination [O] End destination for block
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* Source [O] Where to start copying from
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* Length [I] Number of bytes to copy
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*
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* RETURNS
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* Nothing.
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*/
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#undef RtlMoveMemory
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VOID WINAPI RtlMoveMemory( VOID *Destination, CONST VOID *Source, SIZE_T Length )
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{
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memmove(Destination, Source, Length);
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}
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/******************************************************************************
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* RtlFillMemory [NTDLL.@]
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*
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* Set a block of memory with a value.
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*
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* PARAMS
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* Destination [O] Block to fill
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* Length [I] Number of bytes to fill
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* Fill [I] Value to set
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*
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* RETURNS
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* Nothing.
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*/
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#undef RtlFillMemory
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VOID WINAPI RtlFillMemory( VOID *Destination, SIZE_T Length, BYTE Fill )
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{
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memset(Destination, Fill, Length);
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}
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/******************************************************************************
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* RtlZeroMemory [NTDLL.@]
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*
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* Set a block of memory with 0's.
|
|
*
|
|
* PARAMS
|
|
* Destination [O] Block to fill
|
|
* Length [I] Number of bytes to fill
|
|
*
|
|
* RETURNS
|
|
* Nothing.
|
|
*/
|
|
#undef RtlZeroMemory
|
|
VOID WINAPI RtlZeroMemory( VOID *Destination, SIZE_T Length )
|
|
{
|
|
memset(Destination, 0, Length);
|
|
}
|
|
|
|
/******************************************************************************
|
|
* RtlCompareMemory [NTDLL.@]
|
|
*
|
|
* Compare one block of memory with another
|
|
*
|
|
* PARAMS
|
|
* Source1 [I] Source block
|
|
* Source2 [I] Block to compare to Source1
|
|
* Length [I] Number of bytes to fill
|
|
*
|
|
* RETURNS
|
|
* The length of the first byte at which Source1 and Source2 differ, or Length
|
|
* if they are the same.
|
|
*/
|
|
SIZE_T WINAPI RtlCompareMemory( const VOID *Source1, const VOID *Source2, SIZE_T Length)
|
|
{
|
|
SIZE_T i;
|
|
for(i=0; (i<Length) && (((LPBYTE)Source1)[i]==((LPBYTE)Source2)[i]); i++);
|
|
return i;
|
|
}
|
|
|
|
/******************************************************************************
|
|
* RtlCompareMemoryUlong [NTDLL.@]
|
|
*
|
|
* Compare a block of memory with a value, a ULONG at a time
|
|
*
|
|
* PARAMS
|
|
* Source1 [I] Source block. This must be ULONG aligned
|
|
* Length [I] Number of bytes to compare. This should be a multiple of 4
|
|
* dwVal [I] Value to compare to
|
|
*
|
|
* RETURNS
|
|
* The byte position of the first byte at which Source1 is not dwVal.
|
|
*/
|
|
SIZE_T WINAPI RtlCompareMemoryUlong(const ULONG *Source1, SIZE_T Length, ULONG dwVal)
|
|
{
|
|
SIZE_T i;
|
|
for(i = 0; i < Length/sizeof(ULONG) && Source1[i] == dwVal; i++);
|
|
return i * sizeof(ULONG);
|
|
}
|
|
|
|
/******************************************************************************
|
|
* RtlAssert [NTDLL.@]
|
|
*
|
|
* Fail a debug assertion.
|
|
*
|
|
* RETURNS
|
|
* Nothing. This call does not return control to its caller.
|
|
*
|
|
* NOTES
|
|
* Not implemented in non-debug versions.
|
|
*/
|
|
void WINAPI RtlAssert(LPVOID x1,LPVOID x2,DWORD x3, DWORD x4)
|
|
{
|
|
FIXME("(%p,%p,0x%08lx,0x%08lx),stub\n",x1,x2,x3,x4);
|
|
}
|
|
|
|
/******************************************************************************
|
|
* RtlGetNtVersionNumbers [NTDLL.@]
|
|
*
|
|
* Get the version numbers of the run time library.
|
|
*
|
|
* PARAMS
|
|
* major [O] Destination for the Major version
|
|
* minor [O] Destination for the Minor version
|
|
* build [O] Destination for the Build version
|
|
*
|
|
* RETURNS
|
|
* Nothing.
|
|
*
|
|
* NOTES
|
|
* Introduced in Windows XP (NT5.1)
|
|
*/
|
|
void WINAPI RtlGetNtVersionNumbers(LPDWORD major, LPDWORD minor, LPDWORD build)
|
|
{
|
|
OSVERSIONINFOEXW versionInfo;
|
|
versionInfo.dwOSVersionInfoSize = sizeof(OSVERSIONINFOEXW);
|
|
GetVersionExW((OSVERSIONINFOW*)&versionInfo);
|
|
|
|
if (major)
|
|
{
|
|
/* msvcrt.dll as released with XP Home fails in DLLMain() if the
|
|
* major version is not 5. So, we should never set a version < 5 ...
|
|
* This makes sense since this call didn't exist before XP anyway.
|
|
*/
|
|
*major = versionInfo.dwMajorVersion < 5 ? 5 : versionInfo.dwMajorVersion;
|
|
}
|
|
|
|
if (minor)
|
|
{
|
|
*minor = versionInfo.dwMinorVersion;
|
|
}
|
|
|
|
if (build)
|
|
{
|
|
/* FIXME: Does anybody know the real formula? */
|
|
*build = (0xF0000000 | versionInfo.dwBuildNumber);
|
|
}
|
|
}
|
|
|
|
/*************************************************************************
|
|
* RtlFillMemoryUlong [NTDLL.@]
|
|
*
|
|
* Fill memory with a 32 bit (dword) value.
|
|
*
|
|
* PARAMS
|
|
* lpDest [I] Bitmap pointer
|
|
* ulCount [I] Number of dwords to write
|
|
* ulValue [I] Value to fill with
|
|
*
|
|
* RETURNS
|
|
* Nothing.
|
|
*/
|
|
VOID WINAPI RtlFillMemoryUlong(ULONG* lpDest, ULONG ulCount, ULONG ulValue)
|
|
{
|
|
TRACE("(%p,%ld,%ld)\n", lpDest, ulCount, ulValue);
|
|
|
|
ulCount /= sizeof(ULONG);
|
|
while(ulCount--)
|
|
*lpDest++ = ulValue;
|
|
}
|
|
|
|
/*********************************************************************
|
|
* RtlComputeCrc32 [NTDLL.@]
|
|
*
|
|
* Calculate the CRC32 checksum of a block of bytes
|
|
*
|
|
* PARAMS
|
|
* dwInitial [I] Initial CRC value
|
|
* pData [I] Data block
|
|
* iLen [I] Length of the byte block
|
|
*
|
|
* RETURNS
|
|
* The cumulative CRC32 of dwInitial and iLen bytes of the pData block.
|
|
*/
|
|
DWORD WINAPI RtlComputeCrc32(DWORD dwInitial, PBYTE pData, INT iLen)
|
|
{
|
|
DWORD crc = ~dwInitial;
|
|
|
|
TRACE("(%ld,%p,%d)\n", dwInitial, pData, iLen);
|
|
|
|
while (iLen > 0)
|
|
{
|
|
crc = CRC_table[(crc ^ *pData) & 0xff] ^ (crc >> 8);
|
|
pData++;
|
|
iLen--;
|
|
}
|
|
return ~crc;
|
|
}
|
|
|
|
|
|
/*************************************************************************
|
|
* RtlUlonglongByteSwap [NTDLL.@]
|
|
*
|
|
* Swap the bytes of an unsigned long long value.
|
|
*
|
|
* PARAMS
|
|
* i [I] Value to swap bytes of
|
|
*
|
|
* RETURNS
|
|
* The value with its bytes swapped.
|
|
*/
|
|
ULONGLONG __cdecl RtlUlonglongByteSwap(ULONGLONG i)
|
|
{
|
|
return ((ULONGLONG)RtlUlongByteSwap(i) << 32) | RtlUlongByteSwap(i>>32);
|
|
}
|
|
|
|
/*************************************************************************
|
|
* RtlUlongByteSwap [NTDLL.@]
|
|
*
|
|
* Swap the bytes of an unsigned int value.
|
|
*
|
|
* NOTES
|
|
* ix86 version takes argument in %ecx. Other systems use the inline version.
|
|
*/
|
|
#ifdef __i386__
|
|
__ASM_GLOBAL_FUNC(NTDLL_RtlUlongByteSwap,
|
|
"movl %ecx,%eax\n\t"
|
|
"bswap %eax\n\t"
|
|
"ret");
|
|
#endif
|
|
|
|
/*************************************************************************
|
|
* RtlUshortByteSwap [NTDLL.@]
|
|
*
|
|
* Swap the bytes of an unsigned short value.
|
|
*
|
|
* NOTES
|
|
* i386 version takes argument in %cx. Other systems use the inline version.
|
|
*/
|
|
#ifdef __i386__
|
|
__ASM_GLOBAL_FUNC(NTDLL_RtlUshortByteSwap,
|
|
"movb %ch,%al\n\t"
|
|
"movb %cl,%ah\n\t"
|
|
"ret");
|
|
#endif
|
|
|
|
|
|
/*************************************************************************
|
|
* RtlUniform [NTDLL.@]
|
|
*
|
|
* Generates an uniform random number
|
|
*
|
|
* PARAMS
|
|
* seed [O] The seed of the Random function
|
|
*
|
|
* RETURNS
|
|
* It returns a random number uniformly distributed over [0..MAXLONG-1].
|
|
*
|
|
* NOTES
|
|
* Generates an uniform random number using D.H. Lehmer's 1948 algorithm.
|
|
* In our case the algorithm is:
|
|
*
|
|
* result = (*seed * 0x7fffffed + 0x7fffffc3) % MAXLONG;
|
|
*
|
|
* *seed = result;
|
|
*
|
|
* DIFFERENCES
|
|
* The native documentation states that the random number is
|
|
* uniformly distributed over [0..MAXLONG]. In reality the native
|
|
* function and our function return a random number uniformly
|
|
* distributed over [0..MAXLONG-1].
|
|
*/
|
|
ULONG WINAPI RtlUniform (PULONG seed)
|
|
{
|
|
ULONG result;
|
|
|
|
/*
|
|
* Instead of the algorithm stated above, we use the algorithm
|
|
* below, which is totally equivalent (see the tests), but does
|
|
* not use a division and therefore is faster.
|
|
*/
|
|
result = *seed * 0xffffffed + 0x7fffffc3;
|
|
if (result == 0xffffffff || result == 0x7ffffffe) {
|
|
result = (result + 2) & MAXLONG;
|
|
} else if (result == 0x7fffffff) {
|
|
result = 0;
|
|
} else if ((result & 0x80000000) == 0) {
|
|
result = result + (~result & 1);
|
|
} else {
|
|
result = (result + (result & 1)) & MAXLONG;
|
|
} /* if */
|
|
*seed = result;
|
|
return result;
|
|
}
|
|
|
|
|
|
/*************************************************************************
|
|
* RtlRandom [NTDLL.@]
|
|
*
|
|
* Generates a random number
|
|
*
|
|
* PARAMS
|
|
* seed [O] The seed of the Random function
|
|
*
|
|
* RETURNS
|
|
* It returns a random number distributed over [0..MAXLONG-1].
|
|
*/
|
|
ULONG WINAPI RtlRandom (PULONG seed)
|
|
{
|
|
static ULONG saved_value[128] =
|
|
{ /* 0 */ 0x4c8bc0aa, 0x4c022957, 0x2232827a, 0x2f1e7626, 0x7f8bdafb, 0x5c37d02a, 0x0ab48f72, 0x2f0c4ffa,
|
|
/* 8 */ 0x290e1954, 0x6b635f23, 0x5d3885c0, 0x74b49ff8, 0x5155fa54, 0x6214ad3f, 0x111e9c29, 0x242a3a09,
|
|
/* 16 */ 0x75932ae1, 0x40ac432e, 0x54f7ba7a, 0x585ccbd5, 0x6df5c727, 0x0374dad1, 0x7112b3f1, 0x735fc311,
|
|
/* 24 */ 0x404331a9, 0x74d97781, 0x64495118, 0x323e04be, 0x5974b425, 0x4862e393, 0x62389c1d, 0x28a68b82,
|
|
/* 32 */ 0x0f95da37, 0x7a50bbc6, 0x09b0091c, 0x22cdb7b4, 0x4faaed26, 0x66417ccd, 0x189e4bfa, 0x1ce4e8dd,
|
|
/* 40 */ 0x5274c742, 0x3bdcf4dc, 0x2d94e907, 0x32eac016, 0x26d33ca3, 0x60415a8a, 0x31f57880, 0x68c8aa52,
|
|
/* 48 */ 0x23eb16da, 0x6204f4a1, 0x373927c1, 0x0d24eb7c, 0x06dd7379, 0x2b3be507, 0x0f9c55b1, 0x2c7925eb,
|
|
/* 56 */ 0x36d67c9a, 0x42f831d9, 0x5e3961cb, 0x65d637a8, 0x24bb3820, 0x4d08e33d, 0x2188754f, 0x147e409e,
|
|
/* 64 */ 0x6a9620a0, 0x62e26657, 0x7bd8ce81, 0x11da0abb, 0x5f9e7b50, 0x23e444b6, 0x25920c78, 0x5fc894f0,
|
|
/* 72 */ 0x5e338cbb, 0x404237fd, 0x1d60f80f, 0x320a1743, 0x76013d2b, 0x070294ee, 0x695e243b, 0x56b177fd,
|
|
/* 80 */ 0x752492e1, 0x6decd52f, 0x125f5219, 0x139d2e78, 0x1898d11e, 0x2f7ee785, 0x4db405d8, 0x1a028a35,
|
|
/* 88 */ 0x63f6f323, 0x1f6d0078, 0x307cfd67, 0x3f32a78a, 0x6980796c, 0x462b3d83, 0x34b639f2, 0x53fce379,
|
|
/* 96 */ 0x74ba50f4, 0x1abc2c4b, 0x5eeaeb8d, 0x335a7a0d, 0x3973dd20, 0x0462d66b, 0x159813ff, 0x1e4643fd,
|
|
/* 104 */ 0x06bc5c62, 0x3115e3fc, 0x09101613, 0x47af2515, 0x4f11ec54, 0x78b99911, 0x3db8dd44, 0x1ec10b9b,
|
|
/* 112 */ 0x5b5506ca, 0x773ce092, 0x567be81a, 0x5475b975, 0x7a2cde1a, 0x494536f5, 0x34737bb4, 0x76d9750b,
|
|
/* 120 */ 0x2a1f6232, 0x2e49644d, 0x7dddcbe7, 0x500cebdb, 0x619dab9e, 0x48c626fe, 0x1cda3193, 0x52dabe9d };
|
|
ULONG rand;
|
|
int pos;
|
|
ULONG result;
|
|
|
|
rand = (*seed * 0x7fffffed + 0x7fffffc3) % 0x7fffffff;
|
|
*seed = (rand * 0x7fffffed + 0x7fffffc3) % 0x7fffffff;
|
|
pos = *seed & 0x7f;
|
|
result = saved_value[pos];
|
|
saved_value[pos] = rand;
|
|
return(result);
|
|
}
|
|
|
|
|
|
/*************************************************************************
|
|
* RtlAreAllAccessesGranted [NTDLL.@]
|
|
*
|
|
* Check if all desired accesses are granted
|
|
*
|
|
* RETURNS
|
|
* TRUE: All desired accesses are granted
|
|
* FALSE: Otherwise
|
|
*/
|
|
BOOLEAN WINAPI RtlAreAllAccessesGranted(
|
|
ACCESS_MASK GrantedAccess,
|
|
ACCESS_MASK DesiredAccess)
|
|
{
|
|
return (GrantedAccess & DesiredAccess) == DesiredAccess;
|
|
}
|
|
|
|
|
|
/*************************************************************************
|
|
* RtlAreAnyAccessesGranted [NTDLL.@]
|
|
*
|
|
* Check if at least one of the desired accesses is granted
|
|
*
|
|
* RETURNS
|
|
* TRUE: At least one of the desired accesses is granted
|
|
* FALSE: Otherwise
|
|
*/
|
|
BOOLEAN WINAPI RtlAreAnyAccessesGranted(
|
|
ACCESS_MASK GrantedAccess,
|
|
ACCESS_MASK DesiredAccess)
|
|
{
|
|
return (GrantedAccess & DesiredAccess) != 0;
|
|
}
|
|
|
|
|
|
/*************************************************************************
|
|
* RtlMapGenericMask [NTDLL.@]
|
|
*
|
|
* Determine the nongeneric access rights specified by an access mask
|
|
*
|
|
* RETURNS
|
|
* Nothing.
|
|
*/
|
|
void WINAPI RtlMapGenericMask(
|
|
PACCESS_MASK AccessMask,
|
|
const GENERIC_MAPPING *GenericMapping)
|
|
{
|
|
if (*AccessMask & GENERIC_READ) {
|
|
*AccessMask |= GenericMapping->GenericRead;
|
|
} /* if */
|
|
|
|
if (*AccessMask & GENERIC_WRITE) {
|
|
*AccessMask |= GenericMapping->GenericWrite;
|
|
} /* if */
|
|
|
|
if (*AccessMask & GENERIC_EXECUTE) {
|
|
*AccessMask |= GenericMapping->GenericExecute;
|
|
} /* if */
|
|
|
|
if (*AccessMask & GENERIC_ALL) {
|
|
*AccessMask |= GenericMapping->GenericAll;
|
|
} /* if */
|
|
|
|
*AccessMask &= 0x0FFFFFFF;
|
|
}
|
|
|
|
|
|
/*************************************************************************
|
|
* RtlCopyLuid [NTDLL.@]
|
|
*
|
|
* Copies the LuidSrc to LuidDest.
|
|
*
|
|
* RETURNS
|
|
* Nothing.
|
|
*/
|
|
void WINAPI RtlCopyLuid (PLUID LuidDest, const LUID *LuidSrc)
|
|
{
|
|
*LuidDest = *LuidSrc;
|
|
}
|
|
|
|
|
|
/*************************************************************************
|
|
* RtlEqualLuid [NTDLL.@]
|
|
*
|
|
* Compares two local unique ID's.
|
|
*
|
|
* RETURNS
|
|
* TRUE: The two LUID's are equal.
|
|
* FALSE: Otherwise
|
|
*/
|
|
BOOLEAN WINAPI RtlEqualLuid (const LUID *Luid1, const LUID *Luid2)
|
|
{
|
|
return (Luid1->LowPart == Luid2->LowPart && Luid1->HighPart == Luid2->HighPart);
|
|
}
|
|
|
|
|
|
/*************************************************************************
|
|
* RtlCopyLuidAndAttributesArray [NTDLL.@]
|
|
*
|
|
* Copies an array of LUID's and attributes.
|
|
*
|
|
* RETURNS
|
|
* Nothing.
|
|
*/
|
|
void WINAPI RtlCopyLuidAndAttributesArray(
|
|
ULONG Count,
|
|
const LUID_AND_ATTRIBUTES *Src,
|
|
PLUID_AND_ATTRIBUTES Dest)
|
|
{
|
|
ULONG i;
|
|
|
|
for (i = 0; i < Count; i++) Dest[i] = Src[i];
|
|
}
|