[monitoring-plugins] Fix compilation with GnuTLS

[Holger Weiss]

 Module: monitoring-plugins
 Branch: master
 Commit: 083952c426a250eaf6810b3b22e7555e4aeb3f2d
 Author: Holger Weiss <holger at zedat.fu-berlin.de>
   Date: Thu Jun 12 00:02:26 2014 +0200
    URL: https://www.monitoring-plugins.org/repositories/monitoring-plugins/commit/?id=083952c

Fix compilation with GnuTLS

GnuTLS doesn't provide a SSL_CTX_check_private_key() function.

Closes #1254.

---

 plugins/sslutils.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/plugins/sslutils.c b/plugins/sslutils.c
index 2732125..687bffb 100644
--- a/plugins/sslutils.c
+++ b/plugins/sslutils.c
@@ -86,10 +86,12 @@ int np_net_ssl_init_with_hostname_version_and_cert(int sd, char *host_name, int
 	if (cert && privkey) {
 		SSL_CTX_use_certificate_file(c, cert, SSL_FILETYPE_PEM);
 		SSL_CTX_use_PrivateKey_file(c, privkey, SSL_FILETYPE_PEM);
+#ifdef USE_OPENSSL
 		if (!SSL_CTX_check_private_key(c)) {
 			printf ("%s\n", _("CRITICAL - Private key does not seem to match certificate!\n"));
 			return STATE_CRITICAL;
 		}
+#endif
 	}
 #ifdef SSL_OP_NO_TICKET
 	SSL_CTX_set_options(c, SSL_OP_NO_TICKET);