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GetSidSubAuthorityCount function

The GetSidSubAuthorityCount function returns a pointer to the member in a security identifier (SID) structure that contains the subauthority count.

Syntax


PUCHAR WINAPI GetSidSubAuthorityCount(
  _In_ PSID pSid
);

Parameters

pSid [in]

A pointer to the SID structure from which a pointer to the subauthority count is returned.

This function does not handle SID structures that are not valid. Call the IsValidSid function to verify that the SID structure is valid before you call this function.

Return value

If the function succeeds, the return value is a pointer to the subauthority count for the specified SID structure.

If the function fails, the return value is undefined. The function fails if the specified SID structure is not valid. To get extended error information, call GetLastError.

Remarks

The SID structure specified in pSid uses a 32-bit value. For applications that require longer RID values, use CreateWellKnownSid and related functions.

Requirements

Minimum supported client

Windows XP [desktop apps only]

Minimum supported server

Windows Server 2003 [desktop apps only]

Header

Winbase.h (include Windows.h)

Library

Advapi32.lib

DLL

Advapi32.dll

See also

Access Control Overview
Basic Access Control Functions
CreateWellKnownSid
GetLengthSid
GetSidIdentifierAuthority
GetSidLengthRequired
GetSidSubAuthority
IsValidSid
SID

 

 

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