From a07ef3d19763094ab35cc009657c85bcbb9dd9ae Mon Sep 17 00:00:00 2001
From: Remi Collet <fedora@famillecollet.com>
Date: Tue, 6 Aug 2013 10:41:14 +0200
Subject: [PATCH] no single-quote string in strict mode

---
 json_tokener.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/json_tokener.c b/json_tokener.c
index a6924a1..45390ac 100644
--- a/json_tokener.c
+++ b/json_tokener.c
@@ -293,8 +293,13 @@ struct json_object* json_tokener_parse_ex(struct json_tokener *tok,
 	printbuf_reset(tok->pb);
 	tok->st_pos = 0;
 	goto redo_char;
-      case '"':
       case '\'':
+        if (tok->flags & JSON_TOKENER_STRICT) {
+            /* in STRICT mode only double-quote are allowed */
+            tok->err = json_tokener_error_parse_unexpected;
+            goto out;
+        }
+      case '"':
 	state = json_tokener_state_string;
 	printbuf_reset(tok->pb);
 	tok->quote_char = c;