From 5ff654dab51014a37f7043206ea2fbe685e201f1 Mon Sep 17 00:00:00 2001
From: Seven Du <dujinfang@gmail.com>
Date: Tue, 23 Oct 2012 10:44:31 +0800
Subject: [PATCH] fix NIL case

---
 src/mod/event_handlers/mod_erlang_event/ei_helpers.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/mod/event_handlers/mod_erlang_event/ei_helpers.c b/src/mod/event_handlers/mod_erlang_event/ei_helpers.c
index 0206f37718..9d39b725d7 100644
--- a/src/mod/event_handlers/mod_erlang_event/ei_helpers.c
+++ b/src/mod/event_handlers/mod_erlang_event/ei_helpers.c
@@ -305,6 +305,11 @@ int ei_decode_string_or_binary(char *buf, int *index, int maxlen, char *dst)
 
 	ei_get_type(buf, index, &type, &size);
 
+	if (type == ERL_NIL_EXT || size == 0) {
+		dst[0] = '\0';
+		return 0;
+	}
+
 	if (type != ERL_STRING_EXT && type != ERL_BINARY_EXT) {
 		return -1;
 	} else if (size > maxlen) {