Fix sending invalid message in SI mode.

When a query is aborted by specific reason like serialization error,
Pgpool-II sends error query to abort transactions running on non main
nodes. The message length of the query was incorrect and it caused
"invalid string in message" error on backend.

diff --git a/src/protocol/pool_proto_modules.c b/src/protocol/pool_proto_modules.c
index bd530788a0afd8944b92656bbb2fe0d2ba167d94..89ea8303b7c54d1e93254a783b03efe0c8494217 100644 (file)
--- a/src/protocol/pool_proto_modules.c
+++ b/src/protocol/pool_proto_modules.c
@@ -726,7 +726,7 @@ SimpleQuery(POOL_CONNECTION * frontend,
                if (specific_error)
                {
                        char            msg[1024] = POOL_ERROR_QUERY;   /* large enough */
-                       int                     len = strlen(msg);
+                       int                     len = strlen(msg) + 1;
 
                        memset(msg + len, 0, sizeof(int));