From fdad8c8db14c87d5a64226e9372b0db7d79bcbfc Mon Sep 17 00:00:00 2001
From: Keuin <keuinx@gmail.com>
Date: Tue, 28 Dec 2021 06:00:43 +0800
Subject: Log failure count when network failure is detected. Explicit boundary
 limiting.

---
 netmon.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

(limited to 'netmon.c')

diff --git a/netmon.c b/netmon.c
index fb8bf66..2c500d9 100644
--- a/netmon.c
+++ b/netmon.c
@@ -28,7 +28,7 @@ void daemonize() {
     }
     if (pid > 0) {
         char buf[32];
-        sprintf(buf, "Child process: %d", pid);
+        snprintf(buf, 31, "Child process: %d", pid);
         log_info(logger, buf);
         exit(0); // exit parent process
     }
@@ -180,8 +180,10 @@ void loop() {
     while (1) {
         log_info(logger, "Check network.");
         if (check_network() != 0) {
-            log_info(logger, "Network failure detected.");
             ++failures;
+            char buf[64];
+            snprintf(buf, 63, "Network failure detected. counter=%d", failures);
+            log_info(logger, buf);
         } else {
             log_info(logger, "Network is OK.");
             failures = 0;
-- 
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