netdev - [PATCH iproute2-next 4/5] ipnetns: don't print unassigned nsid in json export

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Date:   Fri, 8 Nov 2019 18:00:18 +0100
From:   Guillaume Nault <gnault@...hat.com>
To:     David Ahern <dsahern@...il.com>
Cc:     netdev@...r.kernel.org, Nicolas Dichtel <nicolas.dichtel@...nd.com>
Subject: [PATCH iproute2-next 4/5] ipnetns: don't print unassigned nsid in
 json export

Don't output the nsid and current-nsid json keys if they're not set.
Otherwise a parser would have to special case the "not-assigned"
string.

Signed-off-by: Guillaume Nault <gnault@...hat.com>
---
 ip/ipnetns.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/ip/ipnetns.c b/ip/ipnetns.c
index 77531d6c..4eb4a09a 100644
--- a/ip/ipnetns.c
+++ b/ip/ipnetns.c
@@ -329,15 +329,15 @@ int print_nsid(struct nlmsghdr *n, void *arg)
 
 	nsid = rta_getattr_s32(tb[NETNSA_NSID]);
 	if (nsid < 0)
-		print_string(PRINT_ANY, "nsid", "nsid %s ", "not-assigned");
+		print_string(PRINT_FP, NULL, "nsid unassigned ", NULL);
 	else
 		print_int(PRINT_ANY, "nsid", "nsid %d ", nsid);
 
 	if (tb[NETNSA_CURRENT_NSID]) {
 		current = rta_getattr_s32(tb[NETNSA_CURRENT_NSID]);
 		if (current < 0)
-			print_string(PRINT_ANY, "current-nsid",
-				     "current-nsid %s ", "not-assigned");
+			print_string(PRINT_FP, NULL,
+				     "current-nsid unassigned ", NULL);
 		else
 			print_int(PRINT_ANY, "current-nsid",
 				  "current-nsid %d ", current);
-- 
2.21.0