From 741e30cff661968f876dd56714489c7c89e857bd Mon Sep 17 00:00:00 2001
From: Tanel Dettenborn <tanel@ssrc.tii.ae>
Date: Sun, 30 Jun 2024 01:08:06 +0300
Subject: [PATCH] Enforce sscanf-function return value check at
 print_number-function

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

diff --git a/cJSON.c b/cJSON.c
index cac1164b..0a363b0e 100644
--- a/cJSON.c
+++ b/cJSON.c
@@ -580,7 +580,12 @@ static cJSON_bool print_number(const cJSON * const item, printbuffer * const out
         length = sprintf((char*)number_buffer, "%1.15g", d);
 
         /* Check whether the original double can be recovered */
-        if ((sscanf((char*)number_buffer, "%lg", &test) != 1) || !compare_double((double)test, d))
+        if (sscanf((char*)number_buffer, "%lg", &test) != 1)
+        {
+            return false;
+        }
+
+        if (!compare_double((double)test, d))
         {
             /* If not, print with 17 decimal places of precision */
             length = sprintf((char*)number_buffer, "%1.17g", d);