From 9f0482dafcb1925952c0d9a614db264f0fa5428e Mon Sep 17 00:00:00 2001
From: Justin Ethier <justin.ethier@gmail.com>
Date: Mon, 21 Aug 2017 23:04:40 -0400
Subject: [PATCH] Prevent possibility of crash

---
 CHANGELOG.md            | 4 ++++
 include/cyclone/types.h | 4 ++++
 2 files changed, 8 insertions(+)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 4276ef64..a0207d07 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,10 @@
 
 ## 0.6.1 - TBD
 
+Bug Fixes
+
+- Fix possibility of crashing when calling `close-port`.
+
 ## 0.6 - August 21, 2017
 
 Features
diff --git a/include/cyclone/types.h b/include/cyclone/types.h
index 6139a906..647f4ba3 100644
--- a/include/cyclone/types.h
+++ b/include/cyclone/types.h
@@ -813,6 +813,8 @@ typedef struct {
   p.tok_buf_len = 0; \
   p.mem_buf = NULL; \
   p.mem_buf_len = 0; \
+  p.str_bv_in_mem_buf = NULL; \
+  p.str_bv_in_mem_buf_len = 0; \
   p.read_len = 1;
 
 #define make_input_port(p,f,rl) \
@@ -832,6 +834,8 @@ typedef struct {
   p.tok_buf_len = CYC_IO_BUF_LEN; \
   p.mem_buf = malloc(CYC_IO_BUF_LEN); \
   p.mem_buf_len = 0; \
+  p.str_bv_in_mem_buf = NULL; \
+  p.str_bv_in_mem_buf_len = 0; \
   p.read_len = rl;
 
 /**