From: Daniel Carl <danielcarl@gmx.de>
Date: Sun, 12 Jan 2014 23:05:38 +0000 (+0100)
Subject: Fixed segfault on converting none string ref to char.
X-Git-Url: https://git.owens.tech/about.html/about.html/git?a=commitdiff_plain;h=083d5ac36c735c83966ce211ddc54520b52644bd;p=vimb.git

Fixed segfault on converting none string ref to char.
---

diff --git a/src/js.c b/src/js.c
index 458fdb5..cd8e6a0 100644
--- a/src/js.c
+++ b/src/js.c
@@ -130,8 +130,15 @@ char* js_object_call_function(JSContextRef ctx, JSObjectRef obj,
 char* js_ref_to_string(JSContextRef ctx, JSValueRef ref)
 {
     char *string;
-    JSStringRef str_ref = JSValueToStringCopy(ctx, ref, NULL);
-    size_t len          = JSStringGetMaximumUTF8CStringSize(str_ref);
+    size_t len;
+    JSStringRef str_ref;
+
+    if (!ref) {
+        return NULL;
+    }
+
+    str_ref = JSValueToStringCopy(ctx, ref, NULL);
+    len     = JSStringGetMaximumUTF8CStringSize(str_ref);
 
     string = g_new0(char, len);
     JSStringGetUTF8CString(str_ref, string, len);