From 76e512117cd45b2171072541b610e4df4f8e1f12 Mon Sep 17 00:00:00 2001
From: Axel Burri <axel@tty0.ch>
Date: Thu, 26 Mar 2015 18:34:09 +0100
Subject: [PATCH] btrbk: show correct exit code on external command failure

---
 btrbk | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/btrbk b/btrbk
index 9cb469d..52e5b6d 100755
--- a/btrbk
+++ b/btrbk
@@ -149,7 +149,9 @@ sub run_cmd($;$)
     chomp($ret);
     TRACE "Command output:\n$ret";
     if($?) {
-      WARN "Command execution failed (exitcode=$?): \"$cmd\"";
+      my $exitcode= $? >> 8;
+      my $signal = $? & 127;
+      WARN "Command execution failed (exitcode=$exitcode" . ($signal ? ", signal=$signal" : "") . "): \"$cmd\"";
       return undef;
     }
     else {