From 3a3b0dd5c1b5a8d9ec7c45f42194c5ae56a44cf8 Mon Sep 17 00:00:00 2001
From: neilpang <github@byneil.com>
Date: Wed, 21 Dec 2016 20:38:14 +0800
Subject: [PATCH] fix https://github.com/Neilpang/acme.sh/issues/481

---
 acme.sh | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/acme.sh b/acme.sh
index a4375033..aefc0155 100755
--- a/acme.sh
+++ b/acme.sh
@@ -3977,7 +3977,10 @@ _installOnline() {
   fi
   (
     _info "Extracting $localname"
-    tar xzf $localname
+    if ! (tar xzf $localname || gtar xzf $localname); then
+      _err "Extraction error."
+      exit 1
+    fi
 
     cd "$PROJECT_NAME-$BRANCH"
     chmod +x $PROJECT_ENTRY