[PATCH 2/3] ss: enable query by type in unix domain related socket

[Masatake YAMATO <yamato@redhat.com>]

This patch enables -A unix_stream, -A unix_dgram and
-A unix_seqpacket option even if ss gets socket information
via netlink.

Signed-off-by: Masatake YAMATO <yamato@redhat.com>
---
 misc/ss.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/misc/ss.c b/misc/ss.c
index bac1f9e..cea3f2e 100644
--- a/misc/ss.c
+++ b/misc/ss.c
@@ -2205,6 +2205,13 @@ static int unix_show_sock(struct nlmsghdr *nlh, struct filter *f)
 	parse_rtattr(tb, UNIX_DIAG_MAX, (struct rtattr*)(r+1),
 		     nlh->nlmsg_len - NLMSG_LENGTH(sizeof(*r)));
 
+	if (r->udiag_type == SOCK_STREAM && !(f->dbs&(1<<UNIX_ST_DB)))
+		return 0;
+	if (r->udiag_type == SOCK_DGRAM && !(f->dbs&(1<<UNIX_DG_DB)))
+		return 0;
+	if (r->udiag_type == SOCK_SEQPACKET && !(f->dbs&(1<<UNIX_SQ_DB)))
+		return 0;
+
 	if (netid_width)
 		printf("%-*s ", netid_width,
 		       		unix_netid_name(r->udiag_type));
-- 
1.8.4.2