print ip addresses from unsigned chars

ot_stats.c

@@ -306,14 +306,14 @@ void stats_issue_event( ot_status_event event, int is_tcp, size_t event_data ) {
       break;
     case EVENT_FULLSCRAPE_REQUEST:
       {
-      char ip[4]; *(int*)ip = is_tcp; /* ugly hack to transfer ip to stats */
+      unsigned char ip[4]; *(int*)ip = is_tcp; /* ugly hack to transfer ip to stats */
       LOG_TO_STDERR( "[%08d] scrp: %d.%d.%d.%d - FULL SCRAPE\n", (unsigned int)(g_now - ot_start_time), ip[0], ip[1], ip[2], ip[3] );
       ot_full_scrape_request_count++;
       }
       break;
     case EVENT_FULLSCRAPE_REQUEST_GZIP:
       {
-      char ip[4]; *(int*)ip = is_tcp; /* ugly hack to transfer ip to stats */
+      unsigned char ip[4]; *(int*)ip = is_tcp; /* ugly hack to transfer ip to stats */
       LOG_TO_STDERR( "[%08d] scrp: %d.%d.%d.%d - FULL SCRAPE GZIP\n", (unsigned int)(g_now - ot_start_time), ip[0], ip[1], ip[2], ip[3] );
       ot_full_scrape_request_count++;
       }