http_static: misc bug fixes

The request vector generated by hss_ts_rx_callback() must be NULL
terminated.

The hss_main_t use_ptr_thresh member must be a u64 since
unformat_memory_size() expects it. Otherwise, the adjacent u8
enable_url_handlers may have an accident.

Type: fix

Signed-off-by: Dave Barach <dave@barachs.net>
Change-Id: I2cc08e3cbd31b225fb03799283c055515add13bf

src/plugins/http_static/http_static.h

@@ -145,7 +145,7 @@ typedef struct
   /** The bind URI, defaults to tcp://0.0.0.0/80 */
   u8 *uri;
   /** Threshold for switching to ptr data in http msgs */
-  u32 use_ptr_thresh;
+  u64 use_ptr_thresh;
   /** Enable the use of builtinurls */
   u8 enable_url_handlers;
   /** Max cache size before LRU occurs */

src/plugins/http_static/static_server.c

@@ -384,6 +384,8 @@ hss_ts_rx_callback (session_t *ts)
       vec_validate (request, msg.data.len - 1);
       rv = svm_fifo_dequeue (ts->rx_fifo, msg.data.len, request);
       ASSERT (rv == msg.data.len);
+      /* request must be a proper C-string in addition to a vector */
+      vec_add1 (request, 0);
     }
 
   /* Find and send data */