GetLengthSid function

The GetLengthSid function returns the length, in bytes, of a valid security identifier (SID).

Syntax

DWORD GetLengthSid(
  PSID pSid
);

Parameters

pSid

A pointer to the SID structure whose length is returned. The structure is assumed to be valid.

Return value

If the SID structure is valid, the return value is the length, in bytes, of the SID structure.

If the SID structure is not valid, the return value is undefined. Before calling GetLengthSid, pass the SID to the IsValidSid function to verify that the SID is valid.

Requirements

   
Minimum supported client Windows XP [desktop apps | UWP apps]
Minimum supported server Windows Server 2003 [desktop apps | UWP apps]
Target Platform Windows
Header securitybaseapi.h (include Windows.h)
Library Advapi32.lib
DLL Advapi32.dll

See also

Access Control Overview

Basic Access Control Functions

GetSidLengthRequired

GetSidSubAuthorityCount

IsValidSid

SID