From 9909a2b6ab99a32853224ae8dc0bb24c018d45e7 Mon Sep 17 00:00:00 2001
From: Tomas Mraz <tmraz@fedoraproject.org>
Date: Fri, 22 Mar 2013 13:50:54 +0100
Subject: pam_lastlog: Do not fail on short read if btmp is corrupted.

modules/pam_lastlog/pam_lastlog.c (last_login_failed): Just warn, not fail
on short read or read error.
---
 modules/pam_lastlog/pam_lastlog.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/modules/pam_lastlog/pam_lastlog.c b/modules/pam_lastlog/pam_lastlog.c
index 50e5a59c..bd454ffd 100644
--- a/modules/pam_lastlog/pam_lastlog.c
+++ b/modules/pam_lastlog/pam_lastlog.c
@@ -479,6 +479,10 @@ last_login_failed(pam_handle_t *pamh, int announce, const char *user, time_t llt
 	}
     }
 
+    if (retval != 0)
+	pam_syslog(pamh, LOG_WARNING, "corruption detected in %s", _PATH_BTMP);
+    retval = PAM_SUCCESS;
+
     if (failed) {
 	/* we want the date? */
 	if (announce & LASTLOG_DATE) {
-- 
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