From 9ae9d31165952dc0738d0909108e7684798786ce Mon Sep 17 00:00:00 2001
From: Ian Barwick <ian@2ndquadrant.com>
Date: Tue, 14 Aug 2018 09:48:46 +0900
Subject: [PATCH] repmgr: truncate version string if necessary

Some distributions may add extra information to PG_VERSION after
the actual version number (e.g. "10.4 (Debian 10.4-2.pgdg90+1)"), so
copy the version number string up until the first space is found.

GitHub #490.
---
 HISTORY   |  1 +
 dbutils.c | 23 ++++++++++++++++++++++-
 2 files changed, 23 insertions(+), 1 deletion(-)

diff --git a/HISTORY b/HISTORY
index 8c82efb1..bf85766f 100644
--- a/HISTORY
+++ b/HISTORY
@@ -1,5 +1,6 @@
 
 4.1.1   2018-??-??
+        repmgr: truncate version string, if necessary; GitHub #490 (Ian)
         repmgrd: ensure that sending SIGHUP always results in the log file
           being reopened; GitHub #485 (Ian)
         repmgrd: report version number *after* logger initialisation; GitHub #487 (Ian)
diff --git a/dbutils.c b/dbutils.c
index 7786c305..13ce238e 100644
--- a/dbutils.c
+++ b/dbutils.c
@@ -1095,7 +1095,28 @@ get_server_version(PGconn *conn, char *server_version)
 	}
 
 	if (server_version != NULL)
-		strncpy(server_version, PQgetvalue(res, 0, 1), MAXVERSIONSTR);
+	{
+		char		server_version_buf[MAXVERSIONSTR];
+		int			i;
+
+		memset(server_version_buf, 0, MAXVERSIONSTR);
+
+		/*
+		 * Some distributions may add extra info after the actual version number,
+		 * e.g. "10.4 (Debian 10.4-2.pgdg90+1)", so copy everything up until the
+		 * first space.
+		 */
+
+		strncpy(server_version_buf, PQgetvalue(res, 0, 1), MAXVERSIONSTR);
+
+		for (i = 0; i < MAXVERSIONSTR; i++)
+		{
+			if (server_version_buf[i] == ' ')
+				break;
+
+			*server_version++ = server_version_buf[i];
+		}
+	}
 
 	server_version_num = atoi(PQgetvalue(res, 0, 0));