From ebaa9b617d2033f50ecaeaaf6013b499f10e9a28 Mon Sep 17 00:00:00 2001
From: Christian Hesse <mail@eworm.de>
Date: Sat, 8 Oct 2022 22:38:31 +0200
Subject: update-tunnelbroker: add error handling for fetch command

---
 update-tunnelbroker | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/update-tunnelbroker b/update-tunnelbroker
index 0075273..93a829c 100644
--- a/update-tunnelbroker
+++ b/update-tunnelbroker
@@ -38,9 +38,13 @@
       $LogPrintExit2 error $0 ("Downloading required certificate failed.") true;
     }
     $LogPrintExit2 info $0 ("Local address changed, sending UPDATE to tunnelbroker! New address: " . $PublicAddress) false;
-    /tool/fetch check-certificate=yes-without-crl \
-        ("https://ipv4.tunnelbroker.net/nic/update\?hostname=" . $Comment->"id") \
-        user=($Comment->"user") password=($Comment->"pass") output=none as-value;
+    :do {
+      /tool/fetch check-certificate=yes-without-crl \
+          ("https://ipv4.tunnelbroker.net/nic/update\?hostname=" . $Comment->"id") \
+          user=($Comment->"user") password=($Comment->"pass") output=none as-value;
+    } on-error={
+      $LogPrintExit2 error $0 ("Failed sending the local address to tunnelbroker! Wrong credentials?") true;
+    }
     /interface/6to4/set $Interface local-address=$PublicAddress;
   } else={
     $LogPrintExit2 debug $0 ("All tunnelbroker configuration is up to date for interface " . $InterfaceVal->"name" . ".") false;
-- 
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