secmodel_suser —
super-user security model
secmodel_suser implements the traditional
  super-user (root) as the user with effective user-id 0. The
  super-user is the host administrator, considered to have
  higher privileges than other users.
secmodel_suser exposes a
  secmodel_eval(9)
  evaluation routine to test whether a set of credentials can be assimilated to
  super-user credentials or not.
The parameters to
    secmodel_eval(9)
  are:
  - id
- the unique identifier of secmodel_suser:
      “org.netbsd.secmodel.suser”
- what
- a string, “is-root”.
- arg
- the kauth(9) credentials
      (kauth_cred_t) of the caller.
- ret
- a boolean, set by secmodel_susertotruewhen the credentials are equivalent to
      super-user,falseotherwise.
If successful, the evaluation returns 0 with the ret
  argument being eithertrue or
  false.