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42 lines
1.2 KiB
C
42 lines
1.2 KiB
C
/*
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* PROJECT: ReactOS Kernel - Vista+ APIs
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* LICENSE: GPL v2 - See COPYING in the top level directory
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* FILE: lib/drivers/ntoskrnl_vista/rtl.c
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* PURPOSE: Implementation of RtlIsNtDdiVersionAvailable and RtlIsServicePackVersionInstalled
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* PROGRAMMERS: Pierre Schweitzer <pierre@reactos.org>
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*/
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#include <ntdef.h>
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#include <ntifs.h>
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BOOLEAN
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WdmlibRtlIsNtDdiVersionAvailable(
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_In_ ULONG Version)
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{
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UNICODE_STRING ImportName;
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ULONG Major, Minor, Current;
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BOOLEAN (NTAPI *pRtlIsNtDdiVersionAvailable)(ULONG Version);
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/* Try to use ntoskrnl version if available */
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RtlInitUnicodeString(&ImportName, L"RtlIsNtDdiVersionAvailable");
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pRtlIsNtDdiVersionAvailable = MmGetSystemRoutineAddress(&ImportName);
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if (pRtlIsNtDdiVersionAvailable)
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{
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return pRtlIsNtDdiVersionAvailable(Version);
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}
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/* Only provide OS version. No SP */
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if (SPVER(Version) || SUBVER(Version))
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{
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return FALSE;
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}
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/* Compute the version and compare */
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Major = 0;
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Minor = 0;
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PsGetVersion(&Major, &Minor, NULL, NULL);
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Current = (Minor + (Major << 8)) << 16;
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return (Current >= Version);
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}
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