---
name: "RtlValidSid"
section: "3w"
platform: "linux"
package: "libwine-dev"
version: "1.4.1-4"
release: "Debian 7 (Wheezy)"
platforms: ["linux"]
url: "https://new.carta.tech/RtlValidSid"
---

# RtlValidSid(3w)

## NAME

**RtlValidSid** (NTDLL.@)

## SYNOPSIS

BOOLEAN RtlValidSid\
  (\
   PSID *pSid*\
  )

## DESCRIPTION

Determine if a **SID** is valid.

## PARAMS

*pSid* **\[In\]**  **SID** to check.

## RETURNS

**TRUE** if *pSid* is valid, **FALSE** otherwise.

## IMPLEMENTATION

Declared in **"winternl.h"**.

Implemented in **"dlls/ntdll/sec.c"**.

Debug channel **"ntdll"**.