From 8911e459d84ee57b872cbb1dd5e64a2287593a3f Mon Sep 17 00:00:00 2001
From: ValdikSS <iam@valdikss.org.ru>
Date: Tue, 28 Dec 2021 23:17:13 +0300
Subject: [PATCH] Exit when native fragmentation is enabled but http/https
 values are not set

---
 src/goodbyedpi.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/goodbyedpi.c b/src/goodbyedpi.c
index 05cbe28..5bf4e87 100644
--- a/src/goodbyedpi.c
+++ b/src/goodbyedpi.c
@@ -933,6 +933,12 @@ int main(int argc, char *argv[]) {
              "completely.");
     }
 
+    if (do_native_frag && !(do_fragment_http || do_fragment_https)) {
+        puts("\nERROR: Native fragmentation is enabled but fragment sizes are not set.\n"
+             "Fragmentation has no effect.");
+        exit(EXIT_FAILURE);
+    }
+
     puts("\nOpening filter");
     finalize_filter_strings();
     filter_num = 0;