Don't eat numeric arguments for other extensions
diff --git a/extensions/libipt_ttl.c b/extensions/libipt_ttl.c
index db5b002..f9d5282 100644
--- a/extensions/libipt_ttl.c
+++ b/extensions/libipt_ttl.c
@@ -33,12 +33,12 @@
check_inverse(optarg, &invert, &optind, 0);
- if (string_to_number(optarg, 0, 255, &value) == -1)
- exit_error(PARAMETER_PROBLEM,
- "ttl: Expected value between 0 and 255");
-
switch (c) {
case '2':
+ if (string_to_number(optarg, 0, 255, &value) == -1)
+ exit_error(PARAMETER_PROBLEM,
+ "ttl: Expected value between 0 and 255");
+
if (invert)
info->mode = IPT_TTL_NE;
else
@@ -48,6 +48,10 @@
info->ttl = value;
break;
case '3':
+ if (string_to_number(optarg, 0, 255, &value) == -1)
+ exit_error(PARAMETER_PROBLEM,
+ "ttl: Expected value between 0 and 255");
+
if (invert)
exit_error(PARAMETER_PROBLEM,
"ttl: unexpected `!'");
@@ -56,6 +60,10 @@
info->ttl = value;
break;
case '4':
+ if (string_to_number(optarg, 0, 255, &value) == -1)
+ exit_error(PARAMETER_PROBLEM,
+ "ttl: Expected value between 0 and 255");
+
if (invert)
exit_error(PARAMETER_PROBLEM,
"ttl: unexpected `!'");