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NF:ntifs.RtlLengthRequiredSid

RtlLengthRequiredSid function (ntifs.h)

The RtlLengthRequiredSid routine returns the length, in bytes, of the buffer required to store a security identifier (SID) with a specified number of subauthorities.

ifsk\rtllengthrequiredsid.htm

ifsk

04/16/2018

RtlLengthRequiredSid function

RtlLengthRequiredSid, RtlLengthRequiredSid routine [Installable File System Drivers], ifsk.rtllengthrequiredsid, ntifs/RtlLengthRequiredSid, rtlref_78e8a660-8510-40bc-b221-747538423488.xml

ntifs.h

Ntifs.h

Universal

NtosKrnl.lib

NtosKrnl.exe (kernel mode); Ntdll.dll (user mode)

<= APC_LEVEL

Windows

RtlLengthRequiredSid

ntifs/RtlLengthRequiredSid

APIRef

kbSyntax

DllExport

NtosKrnl.exe

Ntdll.dll

RtlLengthRequiredSid

RtlLengthRequiredSid function

-description

The RtlLengthRequiredSid routine returns the length, in bytes, of the buffer required to store a security identifier (SID) with a specified number of subauthorities.

-parameters

-param SubAuthorityCount [in]

The number of subauthorities to be stored in the SID.

-returns

RtlLengthRequiredSid returns the length, in bytes, of the buffer required to store the SID structure.

-remarks

For more information about security and access control, see Windows security model for driver developers and the documentation on these topics in the Windows SDK.