X-Git-Url: https://iankelling.org/git/?a=blobdiff_plain;f=dynamic-ip-update;h=3d36363bcfe3cce4e60aa2c1e4ff804d9f9eaad8;hb=ee27d59f1eea7a83b1764ec41bfb3015bb463a26;hp=44d9ffe40fadd925aa262b9247aa24f1195e3edb;hpb=e6cd2e555df3af0cf23da016b833529a34ffc84c;p=distro-setup

diff --git a/dynamic-ip-update b/dynamic-ip-update
index 44d9ffe..3d36363 100755
--- a/dynamic-ip-update
+++ b/dynamic-ip-update
@@ -76,7 +76,7 @@ main() {
 
   if ! tmp=$(ip -4 route get 85.119.83.50 2>/dev/null); then
     # our internet is down
-    if [[ $INVOCATION_ID ]]; then
+    if [[ $PPID == 1 ]]; then
       return 0
     else
       echo $0: failed to get route, giving up
@@ -121,7 +121,7 @@ main() {
 
   if $athome; then
     if ! cur4="$(dig +short $dyndomain @iankelling.org | tail -1)"; then
-      if [[ ! $INVOCATION_ID ]]; then
+      if [[ $PPID != 1 ]]; then
         echo "$0: dig failed. internet looks down. giving up"
       fi
       return 0
@@ -224,7 +224,7 @@ loop-main() {
 }
 
 nsupdate_fails=0
-if [[ $INVOCATION_ID ]]; then
+if [[ $PPID == 1 ]]; then
   nsupdate_fail_limit=10
   loop-main
 else