netdev - [PATCH iproute2 json v2 09/27] ip: iplink

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Date:   Thu, 17 Aug 2017 10:35:56 -0700
From:   Julien Fortin <julien@...ulusnetworks.com>
To:     netdev@...r.kernel.org
Cc:     roopa@...ulusnetworks.com, nikolay@...ulusnetworks.com,
        dsa@...ulusnetworks.com, Julien Fortin <julien@...ulusnetworks.com>
Subject: [PATCH iproute2 json v2 09/27] ip: iplink_hsr.c: add json output support

From: Julien Fortin <julien@...ulusnetworks.com>

Schema:
hsr: IFLA_INFO_DATA
{
    "slave1": {
        "type": "string",
        "attr": "IFLA_HSR_SLAVE1"
    },
    "slave2": {
        "type": "string",
        "attr": "IFLA_HSR_SLAVE2"
    },
    "seq_nr": {
        "type": "int",
        "attr": "IFLA_HSR_SEQ_NR"
    },
    "supervision_addr": {
        "type": "int",
        "attr": "IFLA_HSR_SUPERVISION_ADDR"
    }
}

Signed-off-by: Julien Fortin <julien@...ulusnetworks.com>
---
 ip/iplink_hsr.c | 36 +++++++++++++++++++++---------------
 1 file changed, 21 insertions(+), 15 deletions(-)

diff --git a/ip/iplink_hsr.c b/ip/iplink_hsr.c
index 696b2c91..c673ccf7 100644
--- a/ip/iplink_hsr.c
+++ b/ip/iplink_hsr.c
@@ -110,30 +110,36 @@ static void hsr_print_opt(struct link_util *lu, FILE *f, struct rtattr *tb[])
 	    RTA_PAYLOAD(tb[IFLA_HSR_SUPERVISION_ADDR]) < ETH_ALEN)
 		return;
 
-	fprintf(f, "slave1 ");
 	if (tb[IFLA_HSR_SLAVE1])
-		fprintf(f, "%s ",
-			ll_index_to_name(rta_getattr_u32(tb[IFLA_HSR_SLAVE1])));
+		print_string(PRINT_ANY,
+			     "slave1",
+			     "slave1 %s ",
+			     ll_index_to_name(rta_getattr_u32(tb[IFLA_HSR_SLAVE1])));
 	else
-		fprintf(f, "<none> ");
+		print_null(PRINT_ANY, "slave1", "slave1 %s ", "<none>");
 
-	fprintf(f, "slave2 ");
 	if (tb[IFLA_HSR_SLAVE2])
-		fprintf(f, "%s ",
-			ll_index_to_name(rta_getattr_u32(tb[IFLA_HSR_SLAVE2])));
+		print_string(PRINT_ANY,
+			     "slave2",
+			     "slave2 %s ",
+			     ll_index_to_name(rta_getattr_u32(tb[IFLA_HSR_SLAVE2])));
 	else
-		fprintf(f, "<none> ");
+		print_null(PRINT_ANY, "slave2", "slave2 %s ", "<none>");
 
 	if (tb[IFLA_HSR_SEQ_NR])
-		fprintf(f, "sequence %d ",
-			rta_getattr_u16(tb[IFLA_HSR_SEQ_NR]));
+		print_int(PRINT_ANY,
+			  "seq_nr",
+			  "sequence %d ",
+			  rta_getattr_u16(tb[IFLA_HSR_SEQ_NR]));
 
 	if (tb[IFLA_HSR_SUPERVISION_ADDR])
-		fprintf(f, "supervision %s ",
-			ll_addr_n2a(RTA_DATA(tb[IFLA_HSR_SUPERVISION_ADDR]),
-				    RTA_PAYLOAD(tb[IFLA_HSR_SUPERVISION_ADDR]),
-				    ARPHRD_VOID,
-				    b1, sizeof(b1)));
+		print_string(PRINT_ANY,
+			     "supervision_addr",
+			     "supervision %s ",
+			     ll_addr_n2a(RTA_DATA(tb[IFLA_HSR_SUPERVISION_ADDR]),
+					 RTA_PAYLOAD(tb[IFLA_HSR_SUPERVISION_ADDR]),
+					 ARPHRD_VOID,
+					 b1, sizeof(b1)));
 }
 
 static void hsr_print_help(struct link_util *lu, int argc, char **argv,
-- 
2.14.1