From e6210f3be5b13b6cda9c8dad8926818a73c8e6ac Mon Sep 17 00:00:00 2001 From: Jan Engelhardt Date: Mon, 12 Jan 2009 00:06:10 +0000 Subject: [PATCH 1/1] netfilter 08/09: xt_time: print timezone for user information netfilter: xt_time: print timezone for user information Let users have a way to figure out if their distro set the kernel timezone at all. Signed-off-by: Jan Engelhardt Signed-off-by: Patrick McHardy Signed-off-by: David S. Miller --- net/netfilter/xt_time.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/net/netfilter/xt_time.c b/net/netfilter/xt_time.c index 29375ba..93acaa5 100644 --- a/net/netfilter/xt_time.c +++ b/net/netfilter/xt_time.c @@ -243,6 +243,17 @@ static struct xt_match xt_time_mt_reg __read_mostly = { static int __init time_mt_init(void) { + int minutes = sys_tz.tz_minuteswest; + + if (minutes < 0) /* east of Greenwich */ + printk(KERN_INFO KBUILD_MODNAME + ": kernel timezone is +%02d%02d\n", + -minutes / 60, -minutes % 60); + else /* west of Greenwich */ + printk(KERN_INFO KBUILD_MODNAME + ": kernel timezone is -%02d%02d\n", + minutes / 60, minutes % 60); + return xt_register_match(&xt_time_mt_reg); } -- 1.8.2.3