1 files changed, 61 insertions, 0 deletions
diff --git a/libmisc/failure.h b/libmisc/failure.h
new file mode 100644
index 0000000..2ac30d7
--- /dev/null
+++ b/libmisc/failure.h
@@ -0,0 +1,61 @@
+/*
+ * SPDX-FileCopyrightText: 1990 - 1994, Julianne Frances Haugh
+ * SPDX-FileCopyrightText: 1997 - 2000, Marek Michałkiewicz
+ * SPDX-FileCopyrightText: 2005       , Tomasz Kłoczko
+ * SPDX-FileCopyrightText: 2008 - 2009, Nicolas François
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+/* $Id$ */
+#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
+