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Merge pull request #37 from beamerblvd/add-nsupdate-tcp-support

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Add support for telling `nsupdate` to use TCP instead of UDP
By default, `nsupdate` uses UDP unless the update size is too large to fit in a UDP datagram, in which case it automatically switches to TCP. This change adds a `tcp` configuration option to the `nsupdate` protocol so that the user can force `nsupdate` to use TCP.
This commit is contained in:
wimpunk 2016-01-26 19:34:44 +01:00
commit 1ec1b291ba
1 changed files with 6 additions and 0 deletions
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ddclient
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@ -437,6 +437,7 @@ my %variables = (
'nsupdate-common-defaults' => { 'nsupdate-common-defaults' => {
'ttl' => setv(T_NUMBER, 0, 1, 0, 600, undef), 'ttl' => setv(T_NUMBER, 0, 1, 0, 600, undef),
'zone' => setv(T_STRING, 1, 1, 1, '', undef), 'zone' => setv(T_STRING, 1, 1, 1, '', undef),
'tcp' => setv(T_BOOL, 0, 1, 1, 0, undef),
}, },
'cloudflare-common-defaults' => { 'cloudflare-common-defaults' => {
'server' => setv(T_FQDNP, 1, 0, 1, 'www.cloudflare.com', undef), 'server' => setv(T_FQDNP, 1, 0, 1, 'www.cloudflare.com', undef),
@ -4091,6 +4092,10 @@ Configuration variables applicable to the 'nsupdate' protocol are:
zone=dyn.example.com ## forward zone that is to be updated zone=dyn.example.com ## forward zone that is to be updated
ttl=600 ## time to live of the record; ttl=600 ## time to live of the record;
## defaults to 600 seconds ## defaults to 600 seconds
tcp=off|on ## nsupdate uses UDP by default, and switches to
## TCP if the update is too large to fit in a
## UDP datagram; this setting forces TCP;
## defaults to off
login=/usr/bin/nsupdate ## path and name of nsupdate binary; login=/usr/bin/nsupdate ## path and name of nsupdate binary;
## defaults to '/usr/bin/nsupdate' ## defaults to '/usr/bin/nsupdate'
<hostname> ## fully qualified hostname to update <hostname> ## fully qualified hostname to update
@ -4147,6 +4152,7 @@ EoINSTR2
send send
EoINSTR3 EoINSTR3
my $command = "$binary -k $keyfile"; my $command = "$binary -k $keyfile";
$command .= " -v" if ynu($config{$h}{'tcp'}, 1, 0, 0);
$command .= " -d" if (opt('debug')); $command .= " -d" if (opt('debug'));
verbose("UPDATE:", "nsupdate command is: %s", $command); verbose("UPDATE:", "nsupdate command is: %s", $command);
verbose("UPDATE:", "nsupdate instructions are:\n%s", $instructions); verbose("UPDATE:", "nsupdate instructions are:\n%s", $instructions);