BOOLEAN
RtlValidAcl(
  IN  PACL Acl
  );

Routine Description:

    This procedure validates an ACL.

    This involves validating the revision level of the ACL and ensuring
    that the number of ACEs specified in the AceCount fit in the space
    specified by the AclSize field of the ACL header.

Arguments:

    Acl - Pointer to the ACL structure to validate.

Return Value:

    BOOLEAN - TRUE if the structure of Acl is valid.