testzzuf: print wrong callback parameters values

src/testzzuf/test_get.c

@@ -75,6 +75,16 @@ ahc_echo (void *cls,
   enum MHD_Result ret;
   (void) version; (void) upload_data; (void) upload_data_size;       /* 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 (me, method))
     return MHD_NO;              /* unexpected method */
   if (&ptr != *unused)

src/testzzuf/test_get_chunked.c

@@ -108,6 +108,16 @@ ahc_echo (void *cls,
   (void) upload_data;
   (void) upload_data_size;     /* 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 (me, method))
     return MHD_NO;              /* unexpected method */
   if (&aptr != *ptr)

src/testzzuf/test_long_header.c

@@ -85,6 +85,16 @@ ahc_echo (void *cls,
   (void) version; (void) upload_data;      /* Unused. Silent compiler warning. */
   (void) upload_data_size; (void) unused;  /* 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 (me, method))
     return MHD_NO;              /* unexpected method */
   response = MHD_create_response_from_buffer (strlen (url),

src/testzzuf/test_post.c

@@ -122,6 +122,16 @@ 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 */

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 */

src/testzzuf/test_put.c

@@ -90,6 +90,16 @@ ahc_echo (void *cls,
   enum MHD_Result ret;
   (void) version; (void) unused;   /* 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 ("PUT", method))
     return MHD_NO;              /* unexpected method */
   if ((*done) == 0)

src/testzzuf/test_put_chunked.c

@@ -91,6 +91,16 @@ ahc_echo (void *cls,
   int have;
   (void) version; (void) unused;   /* 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 ("PUT", method))
     return MHD_NO;              /* unexpected method */
   if ((*done) < 8)

src/testzzuf/test_put_large.c

@@ -98,6 +98,16 @@ ahc_echo (void *cls,
   enum MHD_Result ret;
   (void) version; (void) unused; /* 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 ("PUT", method))
     return MHD_NO;              /* unexpected method */
   if ((*done) == 0)