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netfilter 08/09: xt_time: print timezone for user information

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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>
This commit is contained in:
Jan Engelhardt 2009-01-12 00:06:10 +00:00 committed by David S. Miller
parent cd7fcbf1cb
commit e6210f3be5
1 changed files with 11 additions and 0 deletions
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11
net/netfilter/xt_time.c
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@ -243,6 +243,17 @@ static struct xt_match xt_time_mt_reg __read_mostly = {
static int __init time_mt_init(void) 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); return xt_register_match(&xt_time_mt_reg);
} }