From: Johan Kiviniemi <devel@johan.kiviniemi.name>
Date: Thu, 4 Oct 2012 17:56:34 +0000 (+0300)
Subject: src/ntpd.c: Add unit number to refclock name
X-Git-Tag: collectd-5.2.0~46
X-Git-Url: https://git.octo.it/?p=collectd.git;a=commitdiff_plain;h=f2696c0e21e9226d3911457250ef64138900aa2b

src/ntpd.c: Add unit number to refclock name

There can be multiple instances of the same refclock with different unit
numbers. The unit number needs to be a part of the peer name, otherwise
the code will try to write the measurements from multiple peers to the
same RRD file.
---

diff --git a/src/ntpd.c b/src/ntpd.c
index 8bbf74d7..15e60a5d 100644
--- a/src/ntpd.c
+++ b/src/ntpd.c
@@ -857,8 +857,11 @@ static int ntpd_read (void)
 
 			if (refclock_id < refclock_names_num)
 			{
-				sstrncpy (peername, refclock_names[refclock_id],
-						sizeof (peername));
+				/* The unit number is in the lowest byte. */
+				ssnprintf (peername, sizeof (peername),
+						"%s%i",
+						refclock_names[refclock_id],
+						ntohl (ptr->srcadr) & 0xFF);
 			}
 			else
 			{