THRIFT-4084: Add a SSL/TLS negotiation check to crossfeature to verify SSLv3 is not active and that at least one of TLSv1.0 through 1.2 are accepted.
Client: csharp, d, go, nodejs, perl

This closes #1197
diff --git a/test/features/nosslv3.sh b/test/features/nosslv3.sh
new file mode 100755
index 0000000..e550d51
--- /dev/null
+++ b/test/features/nosslv3.sh
@@ -0,0 +1,52 @@
+#!/bin/bash
+
+#
+# Checks to make sure SSLv3 is not allowed by a server.
+#
+
+THRIFTHOST=localhost
+THRIFTPORT=9090
+
+while [[ $# -ge 1 ]]; do
+  arg="$1"
+  argIN=(${arg//=/ })
+
+  case ${argIN[0]} in
+    -h|--host)
+    THRIFTHOST=${argIN[1]}
+    shift # past argument
+    ;;
+    -p|--port)
+    THRIFTPORT=${argIN[1]}
+    shift # past argument
+    ;;
+    *)
+          # unknown option ignored
+    ;;
+  esac
+
+  shift   # past argument or value
+done
+
+function nosslv3
+{
+  local nego
+  local negodenied
+
+  # echo "openssl s_client -connect $THRIFTHOST:$THRIFTPORT -CAfile ../keys/CA.pem -ssl3 2>&1 < /dev/null"
+  nego=$(openssl s_client -connect $THRIFTHOST:$THRIFTPORT -CAfile ../keys/CA.pem -ssl3 2>&1 < /dev/null)
+  negodenied=$?
+
+  if [[ $negodenied -ne 0 ]]; then
+    echo "[pass] SSLv3 negotiation disabled"
+    echo $nego
+    return 0
+  fi
+
+  echo "[fail] SSLv3 negotiation enabled!  stdout:"
+  echo $nego
+  return 1
+}
+
+nosslv3
+exit $?