1 files changed, 10 insertions, 0 deletions

diff --git a/src/testzzuf/test_post_form.c b/src/testzzuf/test_post_form.c
index f994ab24..85a5d3d7 100644
--- a/src/testzzuf/test_post_form.c
+++ b/src/testzzuf/test_post_form.c
@@ -125,6 +125,16 @@ ahc_echo (void *cls,
   enum MHD_Result ret;
   (void) cls; (void) version;      /* Unused. Silent compiler warning. */
 
+  if (NULL == url)
+    fprintf (stderr, "The \"url\" parameter is NULL.\n");
+  if (NULL == method)
+    fprintf (stderr, "The \"method\" parameter is NULL.\n");
+  if (NULL == version)
+    fprintf (stderr, "The \"version\" parameter is NULL.\n");
+  if (NULL == upload_data_size)
+    fprintf (stderr, "The \"upload_data_size\" parameter is NULL.\n");
+  if ((0 != *upload_data_size) && (NULL == upload_data))
+    fprintf (stderr, "Upload data is NULL with non-zero size.\n");
   if (0 != strcmp ("POST", method))
   {
     return MHD_NO;              /* unexpected method */