netdev - [PATCH iproute2] mptcp: show all endpoints when no ID is specified

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Message-Id: <20200724121718.2180511-1-matthieu.baerts@tessares.net>
Date:   Fri, 24 Jul 2020 14:17:18 +0200
From:   Matthieu Baerts <matthieu.baerts@...sares.net>
To:     Stephen Hemminger <stephen@...workplumber.org>
Cc:     netdev@...r.kernel.org, mptcp@...ts.01.org,
        Matthieu Baerts <matthieu.baerts@...sares.net>
Subject: [PATCH iproute2] mptcp: show all endpoints when no ID is specified

According to 'ip mptcp help', 'endpoint show' can accept no argument:

  ip mptcp endpoint show [ id ID ]

It makes sense to print all endpoints when no filter is used.

So here if the following command is used, all endpoints are printed:

  ip mptcp endpoint show

Same as:

  ip mptcp endpoint

Fixes: 7e0767cd ("add support for mptcp netlink interface")
Signed-off-by: Matthieu Baerts <matthieu.baerts@...sares.net>
---
 ip/ipmptcp.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/ip/ipmptcp.c b/ip/ipmptcp.c
index bc12418b..e1ffafb3 100644
--- a/ip/ipmptcp.c
+++ b/ip/ipmptcp.c
@@ -273,7 +273,7 @@ static int mptcp_addr_show(int argc, char **argv)
 	struct nlmsghdr *answer;
 	int ret;
 
-	if (!argv)
+	if (argc <= 0)
 		return mptcp_addr_dump();
 
 	ret = mptcp_parse_opt(argc, argv, &req.n, false);
-- 
2.27.0