linux-kernel - [PATCH] iproute2: ss: escape all null bytes in abstract unix domain socket

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Message-Id: <1477768820-1295-1-git-send-email-iboukris@gmail.com>
Date:   Sat, 29 Oct 2016 22:20:19 +0300
From:   Isaac Boukris <iboukris@...il.com>
To:     stephen@...workplumber.org, davem@...emloft.net,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     Isaac Boukris <iboukris@...il.com>
Subject: [PATCH] iproute2: ss: escape all null bytes in abstract unix domain socket

Abstract unix domain socket may embed null characters,
these should be translated to '@' when printed by ss the
same way the null prefix is currently being translated.

Signed-off-by: Isaac Boukris <iboukris@...il.com>
---
 misc/ss.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/misc/ss.c b/misc/ss.c
index dd77b81..0e28998 100644
--- a/misc/ss.c
+++ b/misc/ss.c
@@ -2895,7 +2895,9 @@ static int unix_show_sock(const struct sockaddr_nl *addr, struct nlmsghdr *nlh,
 		memcpy(name, RTA_DATA(tb[UNIX_DIAG_NAME]), len);
 		name[len] = '\0';
 		if (name[0] == '\0')
-			name[0] = '@';
+			for (int i = 0; i < len; i++)
+				if (name[i] == '\0')
+					name[i] = '@';
 		stat.name = &name[0];
 		memcpy(stat.local.data, &stat.name, sizeof(stat.name));
 	}
-- 
2.7.4