private static int ParseSddlAliasRights(string accessMask)
{
int ret = 0;
int pos = 0;
while (pos < accessMask.Length - 1)
{
string flag = accessMask.Substring(pos, 2);
SddlAccessRight right = SddlAccessRight.LookupByName(flag);
if (right == null)
{
throw new ArgumentException("Invalid SDDL string.", "accessMask");
}
ret |= right.Value;
pos += 2;
}
if (pos != accessMask.Length)
{
throw new ArgumentException("Invalid SDDL string.", "accessMask");
}
return(ret);
}