getinfo: Add support for mbedTLS TLS session info

.. and preprocessor check TLS session info is defined for all backends.

1 files changed, 13 insertions, 17 deletions

diff --git a/lib/getinfo.c b/lib/getinfo.c
index 2508b291f..117d513a5 100644
--- a/lib/getinfo.c
+++ b/lib/getinfo.c
@@ -296,35 +296,31 @@ static CURLcode getinfo_slist(struct SessionHandle *data, CURLINFO info,
         unsigned int i;
         for(i = 0; i < (sizeof(conn->ssl) / sizeof(conn->ssl[0])); ++i) {
           if(conn->ssl[i].use) {
-#ifdef USE_AXTLS
+#if defined(USE_AXTLS)
             tsi->internals = (void *)conn->ssl[i].ssl;
-#endif
-#ifdef USE_CYASSL
+#elif defined(USE_CYASSL)
             tsi->internals = (void *)conn->ssl[i].handle;
-#endif
-#ifdef USE_DARWINSSL
+#elif defined(USE_DARWINSSL)
             tsi->internals = (void *)conn->ssl[i].ssl_ctx;
-#endif
-#ifdef USE_GNUTLS
+#elif defined(USE_GNUTLS)
             tsi->internals = (void *)conn->ssl[i].session;
-#endif
-#ifdef USE_GSKIT
+#elif defined(USE_GSKIT)
             tsi->internals = (void *)conn->ssl[i].handle;
-#endif
-#ifdef USE_NSS
+#elif defined(USE_MBEDTLS)
+            tsi->internals = (void *)conn->ssl[i].ssn;
+#elif defined(USE_NSS)
             tsi->internals = (void *)conn->ssl[i].handle;
-#endif
-#ifdef USE_OPENSSL
+#elif defined(USE_OPENSSL)
             /* Legacy: CURLINFO_TLS_SESSION must return an SSL_CTX pointer. */
             tsi->internals = ((info == CURLINFO_TLS_SESSION) ?
                               (void *)conn->ssl[i].ctx :
                               (void *)conn->ssl[i].handle);
-#endif
-#ifdef USE_POLARSSL
+#elif defined(USE_POLARSSL)
             tsi->internals = (void *)&conn->ssl[i].ssn;
-#endif
-#ifdef USE_SCHANNEL
+#elif defined(USE_SCHANNEL)
             tsi->internals = (void *)&conn->ssl[i].ctxt->ctxt_handle;
+#elif defined(USE_SSL)
+#error "SSL backend specific information missing for CURLINFO_TLS_SSL_PTR"
 #endif
             break;
           }