From: Pavel Shramov <sharmov@mexmat.net>
Date: Thu, 29 Nov 2007 10:37:22 +0000 (+0300)
Subject: network plugin: Set SO_REUSEADDR on socket so multiple listeners can share port
X-Git-Tag: collectd-4.3.0beta0~70^2~2
X-Git-Url: https://git.verplant.org/?a=commitdiff_plain;h=b538a4fc80d63b881382e33f517f4e38e559478a;p=collectd.git

network plugin: Set SO_REUSEADDR on socket so multiple listeners can share port

This patch allows other programs to bind same port and process data from clients
not interfering with master collectd server.

Signed-off-by: Florian Forster <octo@huhu.verplant.org>
---

diff --git a/src/network.c b/src/network.c
index 21b96940..ab04f4c1 100644
--- a/src/network.c
+++ b/src/network.c
@@ -683,6 +683,15 @@ static int network_bind_socket (const sockent_t *se, const struct addrinfo *ai)
 {
 	int loop = 0;
 
+	/* allow multiple sockets to use the same PORT number */
+	if (setsockopt(se->fd, SOL_SOCKET, SO_REUSEADDR,
+				&loop, sizeof(loop)) == -1) {
+                char errbuf[1024];
+                ERROR ("setsockopt: %s", 
+                                sstrerror (errno, errbuf, sizeof (errbuf)));
+		return (-1);
+	}
+
 	DEBUG ("fd = %i; calling `bind'", se->fd);
 
 	if (bind (se->fd, ai->ai_addr, ai->ai_addrlen) == -1)