extensions: libxt_comment: add unit test

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>

diff --git a/extensions/libxt_comment.t b/extensions/libxt_comment.t
new file mode 100644 (file)
index 0000000..f12cd66
--- /dev/null
+++ b/extensions/libxt_comment.t
@@ -0,0 +1,12 @@
+:INPUT,FORWARD,OUTPUT
+-m comment;;FAIL
+-m comment --comment;;FAIL
+#
+# it fails with 256 characters
+#
+# should fail: iptables -A INPUT -m comment --comment xxxxxxxxxxxxxxxxx [....]
+# -m comment --comment xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;;FAIL
+#
+# success with 255 characters
+#
+-m comment --comment xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;=;OK