From: Thomas Maier <contact@thomas-maier.net>
Date: Tue, 14 Aug 2018 14:38:07 +0000 (+0200)
Subject: ensure resp.Body is discarded to avoid broken tcp sockets (#348)
X-Git-Url: https://vcs.fsf.org/?a=commitdiff_plain;h=9a02cbf751629830cdf9147d0935abb8fdf2dc17;p=blackbox_exporter.git

ensure resp.Body is discarded to avoid broken tcp sockets (#348)

Signed-off-by: Thomas Maier <contact@thomas-maier.net>
---

diff --git a/prober/http.go b/prober/http.go
index 5f2af69..bbc4543 100644
--- a/prober/http.go
+++ b/prober/http.go
@@ -296,7 +296,10 @@ func ProbeHTTP(ctx context.Context, target string, module config.Module, registr
 	if err != nil && resp == nil {
 		level.Error(logger).Log("msg", "Error for HTTP request", "err", err)
 	} else {
-		defer resp.Body.Close()
+		defer func() {
+			io.Copy(ioutil.Discard, resp.Body)
+			resp.Body.Close()
+		}()
 		level.Info(logger).Log("msg", "Received HTTP response", "status_code", resp.StatusCode)
 		if len(httpConfig.ValidStatusCodes) != 0 {
 			for _, code := range httpConfig.ValidStatusCodes {