From e6210f3be5b13b6cda9c8dad8926818a73c8e6ac Mon Sep 17 00:00:00 2001
From: Jan Engelhardt <jengelh@medozas.de>
Date: Mon, 12 Jan 2009 00:06:10 +0000
Subject: [PATCH] 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 <jengelh@medozas.de>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
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 29375ba8db733..93acaa59d1089 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);
}
--
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