[PATCH iproute2] ip: mroute: Add table output to show command

[Donald Sharp <sharpd@cumulusnetworks.com>]

When the user specifies `table all` or `table 0` to
the `ip mroute show` command we dump the entirety of
the known mroute tables.  Without some sort of
divisor to tell us what table we are looking at
the command is useless.

Add `Table: <vrf name>` to the output of 'ip mroute show table 0'

Follow the convention established by 'ip route show table 0'
for when to display

Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
---
 ip/ipmroute.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/ip/ipmroute.c b/ip/ipmroute.c
index 4d2d758..70f4c4f 100644
--- a/ip/ipmroute.c
+++ b/ip/ipmroute.c
@@ -189,6 +189,11 @@ int print_mroute(const struct sockaddr_nl *who, struct nlmsghdr *n, void *arg)
 		fprintf(fp, ", Age %4i.%.2i", (int)tv.tv_sec,
 			(int)tv.tv_usec/10000);
 	}
+
+	if (table && (table != RT_TABLE_MAIN || show_details > 0) && !filter.tb)
+		fprintf(fp, " Table: %s",
+			rtnl_rttable_n2a(table, b1, sizeof(b1)));
+
 	fprintf(fp, "\n");
 	fflush(fp);
 	return 0;
-- 
2.1.4