[PATCH iproute2-next] ip vrf: Add json support for show command

[David Ahern]

From: David Ahern <dsah...@gmail.com>

Add json support to 'ip vrf sh':
$ ip -j -p vrf ls
[ {
        "name": "mgmt",
        "table": 1001
    } ]

Signed-off-by: David Ahern <dsah...@gmail.com>
---
 ip/ipvrf.c | 21 +++++++++++++++------
 1 file changed, 15 insertions(+), 6 deletions(-)

diff --git a/ip/ipvrf.c b/ip/ipvrf.c
index 43366f6e25f0..b9a43675cbd6 100644
--- a/ip/ipvrf.c
+++ b/ip/ipvrf.c
@@ -566,9 +566,12 @@ static int ipvrf_print(struct nlmsghdr *n)
                return 0;
        }
 
-       printf("%-16s %5u", name, tb_id);
+       open_json_object(NULL);
+       print_string(PRINT_ANY, "name", "%-16s", name);
+       print_uint(PRINT_ANY, "table", " %5u", tb_id);
+       print_string(PRINT_FP, NULL, "%s", "\n");
+       close_json_object();
 
-       printf("\n");
        return 1;
 }
 
@@ -597,15 +600,21 @@ static int ipvrf_show(int argc, char **argv)
        if (ip_link_list(ipvrf_filter_req, &linfo) == 0) {
                struct nlmsg_list *l;
                unsigned nvrf = 0;
-               int n;
 
-               n = printf("%-16s  %5s\n", "Name", "Table");
-               printf("%.*s\n", n-1, "-----------------------");
+               new_json_obj(json);
+
+               print_string(PRINT_FP, NULL, "%-16s", "Name");
+               print_string(PRINT_FP, NULL, "  %5s\n", "Table");
+               print_string(PRINT_FP, NULL, "%s\n",
+                            "-----------------------");
+
                for (l = linfo.head; l; l = l->next)
                        nvrf += ipvrf_print(&l->h);
 
                if (!nvrf)
-                       printf("No VRF has been configured\n");
+                       print_string(PRINT_FP, NULL, "%s\n",
+                                    "No VRF has been configured");
+               delete_json_obj();
        } else
                rc = 1;
 
-- 
2.11.0