From dad18197321e39c593d85743e49c2c26486ccf63 Mon Sep 17 00:00:00 2001
From: dchagin <dchagin@FreeBSD.org>
Date: Sun, 27 Dec 2015 15:37:07 +0000
Subject: Verify that tv_sec value specified in settimeofday() and
 clock_settime() (CLOCK_REALTIME case) system calls is non negative. This
 commit hides a kernel panic in atrtc_settime() as the clock_ts_to_ct() does
 not properly convert negative tv_sec.

ps. in my opinion clock_ts_to_ct() should be rewritten to properly handle
negative tv_sec values.

Differential Revision:	https://reviews.freebsd.org/D4714
Reviewed by:		kib

MFC after:	1 week
---
 lib/libc/sys/clock_gettime.2 | 4 +++-
 lib/libc/sys/gettimeofday.2  | 6 +++++-
 2 files changed, 8 insertions(+), 2 deletions(-)

(limited to 'lib')

diff --git a/lib/libc/sys/clock_gettime.2 b/lib/libc/sys/clock_gettime.2
index b42432f..e77b1e8 100644
--- a/lib/libc/sys/clock_gettime.2
+++ b/lib/libc/sys/clock_gettime.2
@@ -29,7 +29,7 @@
 .\"
 .\" $FreeBSD$
 .\"
-.Dd December 20, 2015
+.Dd December 27, 2015
 .Dt CLOCK_GETTIME 2
 .Os
 .Sh NAME
@@ -134,6 +134,8 @@ The following error codes may be set in
 .It Bq Er EINVAL
 The
 .Fa clock_id
+or
+.Fa timespec
 argument
 was not a valid value.
 .It Bq Er EPERM
diff --git a/lib/libc/sys/gettimeofday.2 b/lib/libc/sys/gettimeofday.2
index 888cbcd..86b6b1a 100644
--- a/lib/libc/sys/gettimeofday.2
+++ b/lib/libc/sys/gettimeofday.2
@@ -28,7 +28,7 @@
 .\"     @(#)gettimeofday.2	8.2 (Berkeley) 5/26/95
 .\" $FreeBSD$
 .\"
-.Dd December 20, 2015
+.Dd December 27, 2015
 .Dt GETTIMEOFDAY 2
 .Os
 .Sh NAME
@@ -110,6 +110,10 @@ system call even when the system is secure.
 The following error codes may be set in
 .Va errno :
 .Bl -tag -width Er
+.It Bq Er EINVAL
+The supplied
+.Fa timeval
+value is invalid.
 .It Bq Er EPERM
 A user other than the super-user attempted to set the time.
 .El
-- 
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