return next_unused_port(61000, 61099, $family, $address);
}
+sub must_stringify {
+ my ($value) = @_;
+ eval { $value = "$value" };
+ return "error turning value into a string: $@" if $@;
+ return $value;
+}
+
# sigkill after $timeout a $sub running in a fork if it can't write a pipe
# the $sub has to return a single scalar
sub run_fork_with_timeout {
$pipe_out->flush();
};
if (my $err = $@) {
- print {$pipe_out} encode_json({ error => $err });
+ print {$pipe_out} encode_json({ error => must_stringify($err) });
$pipe_out->flush();
POSIX::_exit(1);
}
my $res = eval { run_fork_with_timeout($timeout, $df) } // {};
warn $@ if $@;
+ # untaint the values
+ my ($blocks, $used, $bavail) = map { defined($_) ? (/^(\d+)$/) : 0 }
+ $res->@{qw(blocks used bavail)};
+
return {
- total => $res->{blocks} // 0,
- used => $res->{used} // 0,
- avail => $res->{bavail} // 0,
+ total => $blocks,
+ used => $used,
+ avail => $bavail,
+ };
+}
+
+sub du {
+ my ($path, $timeout) = @_;
+
+ my $size;
+
+ $timeout //= 10;
+
+ my $parser = sub {
+ my $line = shift;
+
+ if ($line =~ m/^(\d+)\s+total$/) {
+ $size = $1;
+ }
};
+
+ run_command(['du', '-scb', $path], outfunc => $parser, timeout => $timeout);
+
+ return $size;
}
# UPID helper