openSSL 1.1.0 API fixes
diff --git a/src/server/shttpd/io_ssl.c b/src/server/shttpd/io_ssl.c
index 6de0db2..ece610e 100644
--- a/src/server/shttpd/io_ssl.c
+++ b/src/server/shttpd/io_ssl.c
@@ -21,8 +21,13 @@
 	{"SSL_set_fd",			{0}},
 	{"SSL_new",			{0}},
 	{"SSL_CTX_new",			{0}},
+#if OPENSSL_VERSION_NUMBER < 0x10100000L
 	{"SSLv23_server_method",	{0}},
 	{"SSL_library_init",		{0}},
+#else
+	{"TLS_server_method",	{0}},
+	{"OPENSSL_init_ssl",		{0}},
+#endif
 	{"SSL_CTX_use_PrivateKey_file",	{0}},
 	{"SSL_CTX_use_certificate_file",{0}},
 	{NULL,				{0}}
diff --git a/src/server/shttpd/shttpd.c b/src/server/shttpd/shttpd.c
index f0f3fbd..652aea1 100644
--- a/src/server/shttpd/shttpd.c
+++ b/src/server/shttpd/shttpd.c
@@ -1489,9 +1489,14 @@
 		}
 
 	/* Initialize SSL crap */
-	SSL_library_init();
 
+#if OPENSSL_VERSION_NUMBER < 0x10100000L
+	SSL_library_init();
 	if ((CTX = SSL_CTX_new(SSLv23_server_method())) == NULL)
+#else
+        OPENSSL_init_ssl();
+	if ((CTX = SSL_CTX_new(TLS_server_method())) == NULL)
+#endif
 		_shttpd_elog(E_LOG, NULL, "SSL_CTX_new error");
 	else if (SSL_CTX_use_certificate_file(CTX, wsmand_options_get_ssl_cert_file(), SSL_FILETYPE_PEM) != 1)
 		_shttpd_elog(E_LOG, NULL, "cannot open certificate file %s", pem);
@@ -1552,6 +1557,10 @@
           if (rc != 1) {
             _shttpd_elog(E_LOG, NULL, "Failed to set SSL cipher list \"%s\"", ssl_cipher_list);
           }
+          else if ((*ssl_cipher_list == 0) || (*ssl_cipher_list == ' ')) {
+            _shttpd_elog(E_LOG, NULL, "Empty 'ssl_cipher_list' defaults to 'TLS_AES_256_GCM_SHA384:TLS_CHACHA20_POLY1305_SHA256:TLS_AES_128_GCM_SHA256'.");
+            _shttpd_elog(E_LOG, NULL, "Check openSSL documentation.");
+          }
         }
 	ctx->ssl_ctx = CTX;
 
diff --git a/src/server/shttpd/ssl.h b/src/server/shttpd/ssl.h
index 2304b70..89a73c4 100644
--- a/src/server/shttpd/ssl.h
+++ b/src/server/shttpd/ssl.h
@@ -56,6 +56,9 @@
 #if OPENSSL_VERSION_NUMBER < 0x10100000L
 #define	SSLv23_server_method()	(* (SSL_METHOD * (*)(void)) FUNC(9))()
 #define	SSL_library_init() (* (int (*)(void)) FUNC(10))()
+#else
+#define	TLS_server_method()	(* (SSL_METHOD * (*)(void)) FUNC(9))()
+#define	OPENSSL_init_ssl() (* (int (*)(void)) FUNC(10))()
 #endif
 #define	SSL_CTX_use_PrivateKey_file(x,y,z)	(* (int (*)(SSL_CTX *, \
 		const char *, int)) FUNC(11))((x), (y), (z))