From: Lennart Poettering <lennart@poettering.net>
Date: Tue, 9 Feb 2021 15:39:49 +0000 (+0100)
Subject: format-table: when generating json, synthesize "null" for invalid ifindex
X-Git-Tag: v248-rc1~171^2~3
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=56909de01520b20bde468765d1871dd7de7e987c;p=thirdparty%2Fsystemd.git

format-table: when generating json, synthesize "null" for invalid ifindex

This matches what we do for other cell types that have an invalid value.
---

diff --git a/src/shared/format-table.c b/src/shared/format-table.c
index 92f82dd5b25..05bcff00956 100644
--- a/src/shared/format-table.c
+++ b/src/shared/format-table.c
@@ -2478,6 +2478,9 @@ static int table_data_to_json(TableData *d, JsonVariant **ret) {
                 return json_variant_new_integer(ret, d->percent);
 
         case TABLE_IFINDEX:
+                if (d->ifindex <= 0)
+                        return json_variant_new_null(ret);
+
                 return json_variant_new_integer(ret, d->ifindex);
 
         case TABLE_IN_ADDR: