From e7e51952dc24531932b6c06e4599be3a3d6bede8 Mon Sep 17 00:00:00 2001
From: Hodlinator <172445034+hodlinator@users.noreply.github.com>
Date: Thu, 27 Nov 2025 14:08:43 +0100
Subject: [PATCH] contrib: Avoid outputting binary data to TTY

---
 contrib/asmap/asmap-tool.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/contrib/asmap/asmap-tool.py b/contrib/asmap/asmap-tool.py
index 33a380a2e7d..3a2521197ce 100755
--- a/contrib/asmap/asmap-tool.py
+++ b/contrib/asmap/asmap-tool.py
@@ -131,6 +131,8 @@ def main():
     if args.subcommand is None:
         parser.print_help()
     elif args.subcommand == "encode":
+        if args.outfile.isatty():
+            sys.exit("Not much use in writing binary to a TTY. Please specify an output file or pipe output to another process.")
         state = load_file(args.infile)
         save_binary(args.outfile, state, fill=args.fill)
     elif args.subcommand == "decode":