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Diffstat (limited to 'libmisc/failure.h')
| -rw-r--r-- | libmisc/failure.h | 84 |
1 files changed, 84 insertions, 0 deletions
diff --git a/libmisc/failure.h b/libmisc/failure.h new file mode 100644 index 0000000..13187a4 --- /dev/null +++ b/libmisc/failure.h @@ -0,0 +1,84 @@ +/* + * Copyright (c) 1990 - 1994, Julianne Frances Haugh + * Copyright (c) 1997 - 2000, Marek Michałkiewicz + * Copyright (c) 2005 , Tomasz Kłoczko + * Copyright (c) 2008 - 2009, Nicolas François + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. The name of the copyright holders or contributors may not be used to + * endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +/* $Id$ */ +#ifndef _FAILURE_H_ +#define _FAILURE_H_ + +#include "defines.h" +#include "faillog.h" +#ifdef USE_UTMPX +#include <utmpx.h> +#else /* !USE_UTMPX */ +#include <utmp.h> +#endif /* !USE_UTMPX */ + +/* + * 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 uid, struct faillog *fl, bool failed); + +/* + * 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 USE_UTMPX +extern void failtmp (const char *username, const struct utmpx *); +#else /* !USE_UTMPX */ +extern void failtmp (const char *username, const struct utmp *); +#endif /* !USE_UTMPX */ + +#endif + |