From 315b1f4fbaf824b7d32ca4168f490adf286324ab Mon Sep 17 00:00:00 2001
From: Mischa POSLAWSKY <perl@shiar.org>
Date: Mon, 9 Sep 2019 18:51:10 +0200
Subject: [PATCH] reset SIGINT after first ignoral

Ensure subsequent signals will break any unexpected hangs.
---
 barcat | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/barcat b/barcat
index 723c7da..c1e1d07 100755
--- a/barcat
+++ b/barcat
@@ -77,7 +77,10 @@ if (defined $opt{interval}) {
 	} or warn $@, "Expect slowdown with large datasets!\n";
 }
 
-$SIG{INT} = 'IGNORE';  # continue after assumed eof
+$SIG{INT} = sub {
+	$SIG{INT} = 'DEFAULT';  # reset for subsequent attempts
+	'IGNORE' # continue after assumed eof
+};
 
 my $valmatch = qr/$opt{anchor} ( \h* -? [0-9]* \.? [0-9]+ (?: e[+-]?[0-9]+ )? |)/x;
 while (readline) {
-- 
2.30.0