shadow/libmisc/failure.h

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/* $Id: failure.h,v 1.4 2005/06/10 18:35:17 kloczek Exp $ */
#ifndef _FAILURE_H_
#define _FAILURE_H_
#include "defines.h"
#include "faillog.h"
#ifdef HAVE_UTMPX_H
#include <utmpx.h>
#else
#include <utmp.h>
#endif
/*
* failure - make failure entry
*
* failure() creates a new (struct faillog) entry or updates an
* existing one with the current failed login information.
*/
extern void failure (uid_t, const char *, struct faillog *);
/*
* failcheck - check for failures > allowable
*
* failcheck() is called AFTER the password has been validated. If the
* account has been "attacked" with too many login failures, failcheck()
* returns FALSE to indicate that the login should be denied even though
* the password is valid.
*/
extern int failcheck (uid_t, struct faillog *, int);
/*
* failprint - print line of failure information
*
* failprint takes a (struct faillog) entry and formats it into a
* message which is displayed at login time.
*/
extern void failprint (const struct faillog *);
/*
* failtmp - update the cummulative failure log
*
* failtmp updates the (struct utmp) formatted failure log which
* maintains a record of all login failures.
*/
#ifdef HAVE_UTMPX_H
extern void failtmp (const struct utmpx *);
#else
extern void failtmp (const struct utmp *);
#endif
#endif