From e2c1939210a2717b04b814a3c7eabeaa32cc6df1 Mon Sep 17 00:00:00 2001
From: Christian Grothoff <christian@grothoff.org>
Date: Fri, 30 Aug 2024 22:38:51 +0200
Subject: [PATCH] demo fixes

---
 src/examples2/demo.c | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/src/examples2/demo.c b/src/examples2/demo.c
index a80c5ac7..697cabd4 100644
--- a/src/examples2/demo.c
+++ b/src/examples2/demo.c
@@ -360,7 +360,9 @@ update_directory (void)
     update_cached_response (NULL);
     return;
   }
-  memcpy (rdc.buf, INDEX_PAGE_HEADER, len);
+  memcpy (rdc.buf,
+          INDEX_PAGE_HEADER,
+          len);
   rdc.off = len;
   for (language_idx = 0; NULL != languages[language_idx].dirname;
        language_idx++)
@@ -678,7 +680,9 @@ done_cb (struct MHD_Request *req,
   lang = MHD_request_get_value (req,
                                 MHD_VK_POSTDATA,
                                 "language");
-  if ( (NULL == lang->cstr) ||
+  if ( (NULL == lang) ||
+       (NULL == lang->cstr) ||
+       (NULL == cat) ||
        (NULL == cat->cstr) )
   {
     if (uc->have_file)
@@ -693,7 +697,8 @@ done_cb (struct MHD_Request *req,
   upload = MHD_request_get_value (req,
                                   MHD_VK_POSTDATA,
                                   "upload");
-  if (NULL != upload->cstr)
+  if ( (NULL != upload) &&
+       (NULL != upload->cstr) )
   {
     if (uc->have_file)
     {