---
name: "auth_checknologin"
section: "3"
platform: "freebsd"
package: "base"
version: "16.0-CURRENT-20261027-61c70dc16a79"
release: "FreeBSD 16.0-CURRENT (2026-10-27)"
platforms: ["freebsd"]
url: "https://new.carta.tech/auth_cat"
---

# auth\_checknologin(3)

authentication style support library for login class capabilities database

Part of [auth\_cat(3)](/auth_cat/3.md).

## NAME

**auth\_checknologin**, **auth\_cat** – authentication style support library for login class capabilities database

## LIBRARY

System Utilities Library (libutil, -lutil)

## SYNOPSIS

**#include \<sys/types.h\>**

**#include \<login\_cap.h\>**

*void*\

**auth\_checknologin**(*login\_cap\_t \*lc*);

*int*\

**auth\_cat**(*const char \*file*);

## DESCRIPTION

This set of functions support the login class authorisation style interface provided by [login.conf(5)](/login.conf/5.md).

## SEE ALSO

[getcap(3)](/getcap/3.md), [login\_cap(3)](/login_cap/3.md), [login\_class(3)](/login_class/3.md), [login.conf(5)](/login.conf/5.md), [termcap(5)](/termcap/5.md)

## HISTORY

The functions **auth\_checknologin**() and **auth\_cat**() first appeared in FreeBSD 2.1.5.