sslutils: Check if OpenSSL supports SSLv2.refs/pull/6/head

Recent versions/builds seem to disable that feature.

1 files changed, 5 insertions, 0 deletions

diff --git a/plugins/sslutils.c b/plugins/sslutils.c
index 2157764..4e3fc4e 100644
--- a/plugins/sslutils.c
+++ b/plugins/sslutils.c
@@ -55,7 +55,12 @@ int np_net_ssl_init_with_hostname_and_version (int sd, char *host_name, int vers
                         method = TLSv1_client_method();
                         break;
                 case 2: /* SSLv2 protocol */
+#ifdef OPENSSL_NO_SSL2
+                        printf (("%s\n", _("CRITICAL - SSL Protocol Version 2 is not supported by your build of OpenSSL.")));
+                        return STATE_CRITICAL;
+#else
                         method = SSLv2_client_method();
+#endif
                         break;
                 case 3: /* SSLv3 protocol */
                         method = SSLv3_client_method();