netdev - [PATCH] ss: Enclose IPv6 address in brackets

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Message-ID: <fc81757c-8dbb-dbed-7a24-7011cb8bb9e0@der-flo.net>
Date:   Sat, 29 Jul 2017 14:29:10 +0200
From:   Florian Lehner <dev@...-flo.net>
To:     netdev@...r.kernel.org
Subject: [PATCH] ss: Enclose IPv6 address in brackets

This patch adds support for RFC2732 IPv6 address format with brackets
for the tool ss. So output for ss changes from
2a00:1450:400a:804::200e:443 to [2a00:1450:400a:804::200e]:443 for IPv6
addresses with attached port number.

Signed-off-by: Lehner Florian <dev@...-flo.net>
---
 misc/ss.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/misc/ss.c b/misc/ss.c
index 12763c9..db39c93 100644
--- a/misc/ss.c
+++ b/misc/ss.c
@@ -1059,7 +1059,11 @@ static void inet_addr_print(const inet_prefix *a,
int port, unsigned int ifindex
 			ap = format_host(AF_INET, 4, a->data);
 		}
 	} else {
-		ap = format_host(a->family, 16, a->data);
+		if (a->family == AF_INET6) {
+			sprintf(buf, "[%s]", format_host(a->family, 16, a->data));
+		} else {
+			ap = format_host(a->family, 16, a->data);
+		}
 		est_len = strlen(ap);
 		if (est_len <= addr_width)
 			est_len = addr_width;
-- 
2.9.4