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authorIsaac Boukris <iboukris@gmail.com>2016-11-01 03:41:35 +0300
committerDavid S. Miller <davem@davemloft.net>2016-11-01 19:15:13 +0300
commite7947ea770d0de434d38a0f823e660d3fd4bebb5 (patch)
treeb24576e64c6e19ca2679a9faad147da2aac967ea /net/unix/af_unix.c
parent7bb9f731d1026bd48b84cee7853cba7f5678193c (diff)
downloadlinux-e7947ea770d0de434d38a0f823e660d3fd4bebb5.tar.xz
unix: escape all null bytes in abstract unix domain socket
Abstract unix domain socket may embed null characters, these should be translated to '@' when printed out to proc the same way the null prefix is currently being translated. This helps for tools such as netstat, lsof and the proc based implementation in ss to show all the significant bytes of the name (instead of getting cut at the first null occurrence). Signed-off-by: Isaac Boukris <iboukris@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/unix/af_unix.c')
-rw-r--r--net/unix/af_unix.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/net/unix/af_unix.c b/net/unix/af_unix.c
index 145082e2ba36..5d1c14a2f268 100644
--- a/net/unix/af_unix.c
+++ b/net/unix/af_unix.c
@@ -2812,7 +2812,8 @@ static int unix_seq_show(struct seq_file *seq, void *v)
i++;
}
for ( ; i < len; i++)
- seq_putc(seq, u->addr->name->sun_path[i]);
+ seq_putc(seq, u->addr->name->sun_path[i] ?:
+ '@');
}
unix_state_unlock(s);
seq_putc(seq, '\n');