The manual says
COMMANDS
These options specify the particular operation to perform.
Only one of them can be specified at any given time.
-L --dump
List connection tracking or expectation table
So, naturally, "conntrack -Lo extended" should work,
but it doesn't, it's equivalent to "conntrack -L",
and you need "conntrack -L -o extended".
This violates user expectations (borne of the Utility Syntax Guidelines)
and contradicts the manual.
optarg is unused, anyway. Unclear why any of these were :: at all?
Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@xxxxxxxxxxxxxxxxxx>
---
src/conntrack.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/src/conntrack.c b/src/conntrack.c
index 0d71352..9fa4986 100644
--- a/src/conntrack.c
+++ b/src/conntrack.c
@@ -337,7 +337,7 @@ static struct option original_opts[] = {
{0, 0, 0, 0}
};
-static const char *getopt_str = ":L::I::U::D::G::E::F::A::hVs:d:r:q:"
+static const char *getopt_str = ":LIUDGEFAhVs:d:r:q:"
"p:t:u:e:a:z[:]:{:}:m:i:f:o:n::"
"g::c:b:C::Sj::w:l:<:>::(:):";
--
2.39.2
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