If no setting storage has been specified in the config, warn user

htmlui.c

@@ -329,6 +329,17 @@ top_menu(http_connection_t *hc, tcp_queue_t *tq)
 
   box_bottom(tq);
   tcp_qprintf(tq, "</div><br>\r\n");
+
+  if(sys_warning != NULL) {
+    box_top(tq, "box");
+    tcp_qprintf(tq, 
+		"<div class=\"content\">"
+		"<span style=\"color:#aa3333;font-weight:bold\">"
+		"Warning: %s</span></div>",
+		sys_warning);
+    box_bottom(tq);
+    tcp_qprintf(tq, "</div><br>\r\n");
+  }
 }
 
 

main.c

@@ -61,6 +61,7 @@ int running;
 int xmltvreload;
 int startupcounter;
 const char *settings_dir;
+const char *sys_warning;
 
 static pthread_mutex_t tag_mutex = PTHREAD_MUTEX_INITIALIZER;
 static uint32_t tag_tally;
@@ -169,7 +170,15 @@ main(int argc, char **argv)
 
   openlog("tvheadend", LOG_PID, logfacility);
   
-  settings_dir = config_get_str("settings-dir", "/tmp/tvheadend");
+  settings_dir = config_get_str("settings-dir", NULL);
+
+  if(settings_dir == NULL) {
+    settings_dir = "/tmp/tvheadend";
+    sys_warning = 
+      "All channelsetup/recording info is stored in "
+      "'/tmp/tvheadend' and may not survive a system restart. "
+      "Please see the configuration manual for how to setup this correctly.";
+  }
   mkdir(settings_dir, 0777);
 
   snprintf(buf, sizeof(buf), "%s/channels", settings_dir);

tvhead.h

@@ -836,5 +836,6 @@ uint32_t tag_get(void);
 extern const char *settings_dir;
 FILE *settings_open_for_write(const char *name);
 FILE *settings_open_for_read(const char *name);
+extern const char *sys_warning;
 
 #endif /* TV_HEAD_H */