From f5622929e01a6578461639afb70e12ab72b5aca7 Mon Sep 17 00:00:00 2001
From: Christian Ramseyer <ramseyer@netnea.com>
Date: Fri, 28 Dec 2018 15:33:02 +0100
Subject: [PATCH] Provide stdin to IOSXR.pm when none available (#462)

* See issue #461 for a detailed description
---
 lib/App/Netdisco/SSHCollector/Platform/IOSXR.pm | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/lib/App/Netdisco/SSHCollector/Platform/IOSXR.pm b/lib/App/Netdisco/SSHCollector/Platform/IOSXR.pm
index 37d44e00..a3b1210c 100644
--- a/lib/App/Netdisco/SSHCollector/Platform/IOSXR.pm
+++ b/lib/App/Netdisco/SSHCollector/Platform/IOSXR.pm
@@ -36,6 +36,11 @@ Returns a list of hashrefs in the format C<{ mac => MACADDR, ip => IPADDR }>.
 sub arpnip {
     my ($self, $hostlabel, $ssh, $args) = @_;
 
+    # IOSXR show commands seem to depend on an available STDIN
+    unless (-t STDIN){
+        open STDIN, "<", "/dev/zero" or warn "Failed to fake stdin: $!";
+    }
+
     debug "$hostlabel $$ arpnip()";
     my @data = $ssh->capture("show arp vrf all");