From 04453080a3a92071227fd79a039137f72fa82e15 Mon Sep 17 00:00:00 2001 From: Andrea Claudi Date: Wed, 12 Jun 2019 15:00:33 +0200 Subject: [PATCH] ss: use [::] for any address/any family sockets Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=1588122 Upstream Status: RHEL-only commit d981824803999a339f4b8fb9ad36d9d5990d9eab Author: Andrea Claudi Date: Wed Jun 12 14:49:07 2019 +0200 ss: use [::] for any address/any family sockets commit aba9c23a6e1cb ("ss: enclose IPv6 address in brackets") brings in the unintended side effect of showing as "*" sockets listening to any address in any family. This is consistent with upstream iproute and RHEL 8 iproute version, but not with previous versions of RHEL 7 iproute. This commit partially reverts aba9c23a6e1cb using "[::]" for any family sockets when -f inet6 is used. Tested with # ss -ln -f inet6 ("ss: enclose IPv6 address in brackets") --- misc/ss.c | 29 ++++++++++++----------------- 1 file changed, 12 insertions(+), 17 deletions(-) diff --git a/misc/ss.c b/misc/ss.c index 6aaae1b5390e4..8f184fb929d31 100644 --- a/misc/ss.c +++ b/misc/ss.c @@ -1090,25 +1090,20 @@ static void inet_addr_print(const inet_prefix *a, int port, unsigned int ifindex ap = format_host(AF_INET, 4, a->data); } } else { - if (!memcmp(a->data, &in6addr_any, sizeof(in6addr_any))) { - buf[0] = '*'; - buf[1] = 0; - } else { - ap = format_host(a->family, 16, a->data); - - /* Numeric IPv6 addresses should be bracketed */ - if (strchr(ap, ':')) { - snprintf(buf, sizeof(buf), - "[%s]", ap); - ap = buf; - } + ap = format_host(a->family, 16, a->data); - est_len = strlen(ap); - if (est_len <= addr_width) - est_len = addr_width; - else - est_len = addr_width + ((est_len-addr_width+3)/4)*4; + /* Numeric IPv6 addresses should be bracketed */ + if (strchr(ap, ':')) { + snprintf(buf, sizeof(buf), + "[%s]", ap); + ap = buf; } + + est_len = strlen(ap); + if (est_len <= addr_width) + est_len = addr_width; + else + est_len = addr_width + ((est_len-addr_width+3)/4)*4; } if (ifindex) { -- 2.20.1