diff --git a/ChangeLog b/ChangeLog
index 6326af00..828b33b8 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,11 @@
+2008-06-13  Nicolas François  <nicolas.francois@centraliens.net>
+
+	* libmisc/sulog.c: Ignore the return value of umask() when the
+	mask is restored.
+	* libmisc/sulog.c: Add brackets.
+	* libmisc/sulog.c: Ignore return value of time() when use with a
+	non NULL argument.
+
 2008-06-13  Nicolas François  <nicolas.francois@centraliens.net>
 
 	* libmisc/log.c: Avoid assignments in comparisons.
diff --git a/libmisc/sulog.c b/libmisc/sulog.c
index bb1d2a5e..a0664795 100644
--- a/libmisc/sulog.c
+++ b/libmisc/sulog.c
@@ -76,7 +76,7 @@ void sulog (const char *tty, bool success, const char *oldname, const char *name
 		oldgid = 0;
 	}
 	fp = fopen (sulog_file, "a+");
-	umask (oldmask);
+	(void) umask (oldmask);
 	if ((oldgid != 0) && (setgid (oldgid) != 0)) {
 		perror ("setgid");
 		SYSLOG ((LOG_ERR,
@@ -85,10 +85,11 @@ void sulog (const char *tty, bool success, const char *oldname, const char *name
 		/* Do not return if the group permission were raised. */
 		exit (1);
 	}
-	if (fp == (FILE *) 0)
+	if (fp == (FILE *) 0) {
 		return;		/* can't open or create logfile */
+	}
 
-	time (&now);
+	(void) time (&now);
 	tm = localtime (&now);
 
 	fprintf (fp, "SU %.02d/%.02d %.02d:%.02d %c %s %s-%s\n",