+ warn "[child-$$] sending packet to remote server" if $Debug > 1;
+ flock(STDOUT, LOCK_EX) or die "FATAL: can't lock write stream: $!";
+ nstore_fd($packet, \*STDOUT) or die "FATAL: can't send response: $!";
+ STDOUT->flush or die "FATAL: can't flush: $!";
+ flock(STDOUT, LOCK_UN) or die "FATAL: can't release write lock: $!";
+ close STDOUT or die "FATAL: can't close write stream: $!"; #??!