From 254a64f9a67af1612cfdd32068fb33f1c946526f Mon Sep 17 00:00:00 2001
From: Zilog80 <rs1729@users.noreply.github.com>
Date: Tue, 19 Sep 2023 16:07:07 +0200
Subject: [PATCH] weathex wrx301d: double check JSON output

---
 weathex/weathex301d.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/weathex/weathex301d.c b/weathex/weathex301d.c
index cdd8107..ff210b9 100644
--- a/weathex/weathex301d.c
+++ b/weathex/weathex301d.c
@@ -481,6 +481,8 @@ int print_frame() {
 
             // JSON
             if (option_json && gpx.chk2ok) {
+                if (gpx.chk1ok && gpx.sn2 == gpx.sn1 && gpx.cnt2 == gpx.cnt1) // double check, unreliable checksums
+                {
                     char *ver_jsn = NULL;
                     fprintf(stdout, "{ \"type\": \"%s\"", "WXR301");
                     fprintf(stdout, ", \"frame\": %u", gpx.cnt2);
@@ -506,6 +508,7 @@ int print_frame() {
                     if (ver_jsn && *ver_jsn != '\0') fprintf(stdout, ", \"version\": \"%s\"", ver_jsn);
                     fprintf(stdout, " }\n");
                     fprintf(stdout, "\n");
+                }
             }
 
         }