From 3122ce9ada8a8acbf3b1035c02618559b21d7ccd Mon Sep 17 00:00:00 2001
From: Yasuyuki KOZAKAI <yasuyuki@netfilter.org>
Date: Tue, 13 Feb 2007 04:06:45 +0000
Subject: Error if no ICMP type is specified even though user intended to use
 icmp match.

---
 extensions/libipt_icmp.c | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'extensions/libipt_icmp.c')

diff --git a/extensions/libipt_icmp.c b/extensions/libipt_icmp.c
index 8f22d052..ce468379 100644
--- a/extensions/libipt_icmp.c
+++ b/extensions/libipt_icmp.c
@@ -284,6 +284,9 @@ static void save(const struct ipt_ip *ip, const struct ipt_entry_match *match)
 /* Final check; we don't care. */
 static void final_check(unsigned int flags)
 {
+	if (!flags)
+		exit_error(PARAMETER_PROBLEM,
+			   "icmp match: You must specify `--icmp-type'");
 }
 
 static struct iptables_match icmp = { 
-- 
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