- my $qmcmd = [@$remcmd, "/usr/sbin/qm", 'vncproxy', $vmid];
-
- my $qmstr = join(' ', @$qmcmd);
-
- # also redirect stderr (else we get RFB protocol errors)
- $cmd = ['/bin/nc6', '-l', '-p', $port, '-w', $timeout, '-e', "$qmstr 2>/dev/null"];
+ $cmd = [@$remcmd, "/usr/sbin/qm", 'vncproxy', $vmid];
+
+ my $sock = IO::Socket::IP->new(
+ ReuseAddr => 1,
+ Listen => 1,
+ LocalPort => $port,
+ Proto => 'tcp',
+ GetAddrInfoFlags => 0,
+ ) or die "failed to create socket: $!\n";
+ # Inside the worker we shouldn't have any previous alarms
+ # running anyway...:
+ alarm(0);
+ local $SIG{ALRM} = sub { die "connection timed out\n" };
+ alarm $timeout;
+ accept(my $cli, $sock) or die "connection failed: $!\n";
+ alarm(0);
+ close($sock);
+ if (PVE::Tools::run_command($cmd,
+ output => '>&'.fileno($cli),
+ input => '<&'.fileno($cli),
+ noerr => 1) != 0)
+ {
+ die "Failed to run vncproxy.\n";
+ }