Re: [PATCH] header.pl: Fix parsing BOOTP leases

[Bernhard Bitsch <bbitsch@ipfire.org>]

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Reviewed-by: Bernhard Bitsch <bbitsch(a)ipfire.org>

Am 15.05.2024 um 15:20 schrieb Michael Tremer:
> If the lease has been handed out over BOOTP, it will never expire.
> However, the parser did not account for this case at all which is fixed
> in this patch.
> 
> Fixes: #13689 - BOOTP breaks the list of DHCP leases due to erroneous parsing
> Signed-off-by: Michael Tremer <michael.tremer(a)ipfire.org>
> ---
>   config/cfgroot/header.pl | 8 ++++++--
>   1 file changed, 6 insertions(+), 2 deletions(-)
> 
> diff --git a/config/cfgroot/header.pl b/config/cfgroot/header.pl
> index 5164e9731..a67ff92ee 100644
> --- a/config/cfgroot/header.pl
> +++ b/config/cfgroot/header.pl
> @@ -454,12 +454,16 @@ END
>   			$hostname = "";
>   		}
>   
> -		if ($line =~ /^\s*ends/) {
> -			$line =~ /(\d+)\/(\d+)\/(\d+) (\d+):(\d+):(\d+)/;
> +		if ($line =~ /^\s*ends \d (\d+)\/(\d+)\/(\d+) (\d+):(\d+):(\d+)/) {
>   			$endtime = timegm($6, $5, $4, $3, $2 - 1, $1 - 1900);
>   			($sec, $min, $hour, $mday, $mon, $year, $wday, $yday, $dst) = localtime($endtime);
>   			$endtime_print = sprintf ("%02d/%02d/%d %02d:%02d:%02d",$mday,$mon+1,$year+1900,$hour,$min,$sec);
>   			$expired = $endtime < time();
> +
> +		} elsif ($line =~ /^\s*ends never/) {
> +			$endtime = 0;
> +			$endtime_print = $Lang::tr{'never'};
> +			$expired = 0;
>   		}
>   
>   		if ($line =~ /^\s*hardware ethernet/) {