RtlpAddKnownAce

INT64 __fastcall RtlpAddKnownAce(
        _ACL *Acl,
        UINT64 AceRevision,
        UINT64 AceFlags,
        UINT64 AccessMask,
        VOID *Sid,
        UINT8 NewType){
  int v6; 
  unsigned __int8 v7; 
  unsigned __int8 AclRevision; 
  unsigned __int8 v10; 
  int v11; 
  _ACL *v12; 
  unsigned int v13; 
  _ACL *v14; 
  unsigned __int16 v15; 
  INT64 result; 
  v6 = AccessMask;
  v7 = AceFlags;
  if( (unsigned __int64)Sid <= 0x7FFFFFFF0000i64 || (*(_BYTE *)Sid & 0xF) != 1 || *((_BYTE *)Sid + 1) > 0xFu )
    return 3221225592i64;
  AclRevision = Acl->AclRevision;
  if( AclRevision > 4u || (unsigned int)AceRevision > 4 )
    return 3221225561i64;
  v10 = AclRevision;
  if( AclRevision <= (unsigned __int8)AceRevision )
    v10 = AceRevision;
  v11 = AceFlags & 0xFFFFFFE0;
  if( (AceFlags & 0xFFFFFFE0) != 0 )
  {
    if( NewType == 2 )
    {
      v11 = AceFlags & 0xFFFFFF20;
    }
    else if( !NewType )
    {
      v11 = AceFlags & 0xFFFFFFC0;
    }
    if( v11 )
      return 3221225485i64;
  }
  if( !RtlValidAcl(Acl) )
    return 3221225591i64;
  v12 = Acl + 1;
  v13 = 0;
  if( Acl->AceCount )
  {
    while( v12 < (_ACL *)((char *)Acl + Acl->AclSize) )
    {
      ++v13;
      v12 = (_ACL *)((char *)v12 + v12->AclSize);
      if( v13 >= Acl->AceCount )
        goto LABEL_13;
    }
    return 3221225591i64;
  }
LABEL_13:
  v14 = (_ACL *)((char *)Acl + Acl->AclSize);
  if( v12 > v14 )
    v12 = 0i64;
  v15 = 4 * (*((unsigned __int8 *)Sid + 1) + 4);
  if( !v12 || (_ACL *)((char *)v12 + v15) > v14 )
    return 3221225625i64;
  v12->AclSize = v15;
  v12->Sbz1 = v7;
  v12->AclRevision = NewType;
  *(_DWORD *)&v12->AceCount = v6;
  memmove((UINT8 *)&v12[1], (UINT8 *)Sid, 4i64 * *((unsigned __int8 *)Sid + 1) + 8);
  ++Acl->AceCount;
  result = 0i64;
  Acl->AclRevision = v10;
  return result;
}

Referenced by: