From fc927e98db73850e760f490117ed36f2de20270c Mon Sep 17 00:00:00 2001
From: Andreas Baumann <mail@andreasbaumann.cc>
Date: Wed, 8 Mar 2023 16:10:45 +0100
Subject: fixed a wrong compare and a wrong size in strncat


diff --git a/plugins/check_curl.c b/plugins/check_curl.c
index 512fb88..cc17ef5 100644
--- a/plugins/check_curl.c
+++ b/plugins/check_curl.c
@@ -422,8 +422,8 @@ lookup_host (const char *host, char *buf, size_t buflen)
     // Append all IPs to buf as a comma-separated string
     addrstr_len = strlen(addrstr);
     if (buflen_remaining > addrstr_len + 1) {
-      if (buf[0] != NULL) {
-        strncat(buf, ",", 1);
+      if (buf[0] != '\0') {
+        strncat(buf, ",", buflen_remaining);
         buflen_remaining -= 1;
       }
       strncat(buf, addrstr, buflen_remaining);
-- 
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