Linode support for ddclient (updated for Debian bullseye package 3.9.1-7)

linode-support.diff

--- a/ddclient
+++ b/ddclient
@@ -764,6 +764,16 @@
             $variables{'service-common-defaults'},
             ),
     },
+    'linode' => {
+        'updateable' => undef,
+        'update'     => \&nic_linode_update,
+        'examples'   => \&nic_linode_examples,
+        'variables'  => merge(
+                          { 'server'       => setv(T_FQDNP,  1, 0, 1, 'api.linode.com',   undef)    },
+                          { 'min-interval' => setv(T_DELAY,  0, 0, 1, 0, interval('5m')),},
+                          $variables{'service-common-defaults'},
+                        ),
+    },
 );
 $variables{'merged'} = merge($variables{'global-defaults'},
     $variables{'service-common-defaults'},
@@ -3825,6 +3835,86 @@
             $config{$h}{'ip'}     = $ip;
             $config{$h}{'mtime'}  = $now;
             $config{$h}{'status'} = 'good';
+            success("updating %s: good: IP address set to %s", $h, $ip);
+        } else {
+            $config{$h}{'status'} = 'failed';
+            warning("SENT:    %s", $url) unless opt('verbose');
+            warning("REPLIED: %s", $reply);
+            failed("updating %s: Invalid reply.", $h);
+        }
+    }
+}
+
+######################################################################
+
+######################################################################
+## nic_linode_examples
+######################################################################
+sub nic_linode_examples {
+    return <<EoEXAMPLE;
+
+o 'linode'
+
+The 'linode' protocol is used by DNS services offered by www.linode.com.
+
+Configuration variables applicable to the 'linode' protocol are:
+  protocol=linode              ##
+  server=fqdn.of.service       ## defaults to api.linode.com
+  login=domain-id              ## domain id from the service
+  password=linode-api-key      ## api key from service account
+  resourceid                   ## id of the A record for the domain from the service
+
+Example ${program}.conf file entries:
+  ## single host update
+  protocol=linode,                                         \\
+  login=my-linode.com-domain-id,                           \\
+  password=my-linode.com-api-key                           \\
+  my-linode.com-resource-id
+
+EoEXAMPLE
+}
+######################################################################
+## nic_linode_update
+##
+## written by Mike W. Smith
+##
+## based on http://www.linode.com/api/?method=domain.resource.update
+## needs this url to update:
+## #https://api.linode.com?api_key=my_api_key&api_action=domain.resource.update&DomainID=my_domain_id&ResourceID=my_resource_id&Target=my_ip
+##
+######################################################################
+sub nic_linode_update {
+
+
+    debug("\nnic_linode_update -------------------");
+
+    ## update each configured host
+    foreach my $h (@_) {
+        my $ip = delete $config{$h}{'wantip'};
+        info("setting IP address to %s for %s", $ip, $h);
+        verbose("UPDATE:","updating %s", $h);
+
+        my $url;
+        $url   = "https://$config{$h}{'server'}/";
+        $url  .= "?api_key=$config{$h}{'password'}";
+        $url  .= "&api_action=domain.resource.update";
+        $url  .= "&DomainID=$config{$h}{'login'}";
+        $url  .= "&ResourceID=$h";
+        $url  .= "&Target=";
+        $url  .= $ip if $ip;
+
+        my $reply = geturl(opt('proxy'), $url);
+        if (!defined($reply) || !$reply) {
+            failed("updating %s: Could not connect to %s.", $h, $config{$h}{'server'});
+            last;
+        }
+        last if !header_ok($h, $reply);
+
+        my @reply = split /\n/, $reply;
+        if (grep /\[\]/i, @reply) {
+            $config{$h}{'ip'}     = $ip;
+            $config{$h}{'mtime'}  = $now;
+            $config{$h}{'status'} = 'good';
             success("updating %s: good: IP address set to %s", $h, $ip);
         } else {
             $config{$h}{'status'} = 'failed';