1 files changed, 6 insertions, 1 deletions
diff --git a/hugin.c b/hugin.c
index a4dd622..bfb43e8 100644
--- a/hugin.c
+++ b/hugin.c
@@ -232,8 +232,12 @@ hug_status_t hug_init(unsigned int flags, ...)
       hug_config.stdout_no_date = va_arg(vl, int);
       break;
     case HUG_OPTION_FILENAME:
+    {
+      const char *filename = (const char*) va_arg(vl, char*);
+      if(!filename) break;
+
       if(hug_config.flags & HUG_FLAG_OUTPUT_TO_FILE) {
-        hug_config.filename = strdup((const char*)va_arg(vl, char*));
+        hug_config.filename = strdup(filename);
         hug_config.file_fd = open(hug_config.filename,
                                   O_CREAT | O_APPEND | O_RDWR, 0777);
         if(hug_config.file_fd == -1) {
@@ -242,6 +246,7 @@ hug_status_t hug_init(unsigned int flags, ...)
           return HUG_STATUS_ERROR;
         }
       }
+    }
       break;
 #ifdef WITH_HUG_SYSLOG
     case HUG_OPTION_SYSLOG_PORT: