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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-27 12:50:00 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-27 12:50:00 +0000
commit333f7ecfa3e040191c66b2b92f6c117ca2cbac1d (patch)
tree178a8f140927896970f47930dae9213161268f10 /libmisc/failure.h
parentInitial commit. (diff)
downloadshadow-333f7ecfa3e040191c66b2b92f6c117ca2cbac1d.tar.xz
shadow-333f7ecfa3e040191c66b2b92f6c117ca2cbac1d.zip
Adding upstream version 1:4.8.1.upstream/1%4.8.1upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
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+/*
+ * 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 cumulative 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
+