From 1233dc950ce8b7d810f7d0d6c26a0bf09ec1a891 Mon Sep 17 00:00:00 2001
From: Lukas Schauer <lukas@schauer.so>
Date: Mon, 15 Feb 2016 19:51:35 +0100
Subject: [PATCH] exit with error message if curl has problems connecting
 (fixes #133)

---
 letsencrypt.sh | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/letsencrypt.sh b/letsencrypt.sh
index d3877d9..6f21d1c 100755
--- a/letsencrypt.sh
+++ b/letsencrypt.sh
@@ -238,15 +238,25 @@ _openssl() {
 http_request() {
   tempcont="$(mktemp -t XXXXXX)"
 
+  set +e
   if [[ "${1}" = "head" ]]; then
     statuscode="$(curl -s -w "%{http_code}" -o "${tempcont}" "${2}" -I)"
+    curlret="${?}"
   elif [[ "${1}" = "get" ]]; then
     statuscode="$(curl -s -w "%{http_code}" -o "${tempcont}" "${2}")"
+    curlret="${?}"
   elif [[ "${1}" = "post" ]]; then
     statuscode="$(curl -s -w "%{http_code}" -o "${tempcont}" "${2}" -d "${3}")"
+    curlret="${?}"
   else
+    set -e
     _exiterr "Unknown request method: ${1}"
   fi
+  set -e
+
+  if [[ ! "${curlret}" = "0" ]]; then
+    _exiterr "Problem connecting to server (curl returned with ${curlret})"
+  fi
 
   if [[ ! "${statuscode:0:1}" = "2" ]]; then
     echo "  + ERROR: An error occurred while sending ${1}-request to ${2} (Status ${statuscode})" >&2