From 10862c46e8cfc77b4063bf024686036c10277f72 Mon Sep 17 00:00:00 2001
From: dmiller <dmiller@e0a8ed71-7df4-0310-8962-fdc924857419>
Date: Fri, 23 Sep 2022 14:49:40 +0000
Subject: [PATCH] Don't bother with interactive input if we can't open the TTY.
 See #2042

---
 nmap_tty.cc | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/nmap_tty.cc b/nmap_tty.cc
index 8c748bc23..09145411f 100644
--- a/nmap_tty.cc
+++ b/nmap_tty.cc
@@ -224,7 +224,10 @@ void tty_init()
         if (tty_fd)
                 return;
 
-        if ((tty_fd = open("/dev/tty", O_RDONLY | O_NONBLOCK)) < 0) return;
+        if ((tty_fd = open("/dev/tty", O_RDONLY | O_NONBLOCK)) < 0) {
+          o.noninteractive = true;
+          return;
+        }
 
 #ifndef __CYGWIN32__
         if (tcgetpgrp(tty_fd) != getpgrp()) {