From: Vincent Bernat <vincent@bernat.im>
Date: Wed, 18 Mar 2015 13:21:46 +0000 (+0100)
Subject: priv: use a SOCK_SEQPACKET for communication with monitor
X-Git-Tag: 0.7.14~19
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=10c20ba8877e8844a25c8055ad9d7bd80d11569a;p=thirdparty%2Flldpd.git

priv: use a SOCK_SEQPACKET for communication with monitor

This has the same semantics than SOCK_DGRAM but it also supports the
ability to notify the other end of end-of-file events. However, it may
not be widely implemented, hence the separate commit.
---

diff --git a/src/daemon/priv.c b/src/daemon/priv.c
index 0588fab0..f00297ee 100644
--- a/src/daemon/priv.c
+++ b/src/daemon/priv.c
@@ -591,7 +591,7 @@ priv_init(const char *chrootdir, int ctl, uid_t uid, gid_t gid)
 	int pair[2];
 
 	/* Create socket pair */
-	if (socketpair(AF_UNIX, SOCK_DGRAM, PF_UNSPEC, pair) < 0)
+	if (socketpair(AF_UNIX, SOCK_SEQPACKET, PF_UNSPEC, pair) < 0)
 		fatal("privsep", "unable to create socket pair for privilege separation");
 
 	priv_unprivileged_fd(pair[0]);