Revert "Revert "tls: added define condition on version functions""

This reverts commit bffd78f14921f67735a64caea2fb130393daa2bc.

src/modules/tls/tls_domain.c

@@ -63,9 +63,11 @@ static void setup_ecdh(SSL_CTX *ctx)
 {
    EC_KEY *ecdh;
 
-   if (OpenSSL_version_num() < 0x1000005fL) {
+#if OPENSSL_VERSION_NUMBER < 0x010100000L
+   if (SSLeay() < 0x1000005fL) {
       return;
    }
+#endif
 
    ecdh = EC_KEY_new_by_curve_name(NID_X9_62_prime256v1);
    SSL_CTX_set_options(ctx, SSL_OP_SINGLE_ECDH_USE);

src/modules/tls/tls_init.c

@@ -645,6 +645,7 @@ int tls_h_mod_init_f(void)
 {
 	/*struct socket_info* si;*/
 	long ssl_version;
+	const char *ssl_version_txt;
 #if OPENSSL_VERSION_NUMBER < 0x010100000L && !defined(LIBRESSL_VERSION_NUMBER)
 	int lib_kerberos;
 	int lib_zlib;
@@ -667,7 +668,15 @@ int tls_h_mod_init_f(void)
 #if OPENSSL_VERSION_NUMBER < 0x00907000L
 	LM_WARN("You are using an old version of OpenSSL (< 0.9.7). Upgrade!\n");
 #endif
+
+#if OPENSSL_VERSION_NUMBER < 0x010100000L
+	ssl_version=SSLeay();
+	ssl_version_txt=SSLeay_version(SSLEAY_VERSION);
+#else
 	ssl_version=OpenSSL_version_num();
+	ssl_version_txt=OpenSSL_version(OPENSSL_VERSION);
+#endif
+
 	/* check if version have the same major minor and fix level
 	 * (e.g. 0.9.8a & 0.9.8c are ok, but 0.9.8 and 0.9.9x are not)
 	 * - values is represented as 0xMMNNFFPPS: major minor fix patch status
@@ -679,7 +688,7 @@ int tls_h_mod_init_f(void)
 				" compiled \"%s\" (0x%08lx).\n"
 				" Please make sure a compatible version is used"
 				" (tls_force_run in kamailio.cfg will override this check)\n",
-				OpenSSL_version(OPENSSL_VERSION), ssl_version,
+				ssl_version_txt, ssl_version,
 				OPENSSL_VERSION_TEXT, (long)OPENSSL_VERSION_NUMBER);
 		if (cfg_get(tls, tls_cfg, force_run))
 			LM_WARN("tls_force_run turned on, ignoring "