DIED => 5,
REJ => 10,
};
-# These constants are changed by ex/makevm
-use constant USER => 65534;
-use constant GROUP => 65534;
use BSD::Resource qw/setrlimit RLIMIT_AS RLIMIT_FSIZE RLIMIT_NPROC/;
use IPC::Signal qw/sig_name sig_num/;
use Text::ParseWords qw/shellwords/;
use Time::HiRes qw/alarm/;
-my (@fds, $timeout, $mlimit, $olimit, $nobody);
-my $close = 1;
+my (@fds, $timeout, $mlimit, $olimit, $sudo, $keep_stderr);
GetOptions(
- "fd=s" => \@fds,
- "timeout=f" => \$timeout,
- "mlimit=i" => \$mlimit,
- "olimit=i" => \$olimit,
- "close!" => \$close,
- "nobody!" => \$nobody,
+ "fd=s" => \@fds,
+ "timeout=f" => \$timeout,
+ "mlimit=i" => \$mlimit,
+ "olimit=i" => \$olimit,
+ "keep-stderr!" => \$keep_stderr,
+ "sudo!" => \$sudo,
);
-my $killuser = $ENV{GRUNTMASTER_KILL_USER};
+sub test_pipe_read {
+ my $data = '';
+ sysread STDIN, $data, 4096 and syswrite STDOUT, "recvd\n" until $data =~ /done/;
+ syswrite STDOUT, 'done';
+}
+
+sub test_pipe_write {
+ my ($rin, $rout);
+ vec($rin, fileno STDIN, 1) = 1;
+ syswrite STDOUT, "data\n" until select $rout = $rin, undef, undef, 0.05;
+ syswrite STDOUT, 'done';
+ my $data = '';
+ sysread STDIN, $data, 4096 until $data =~ /done/;
+}
+
+sub test_pipes {
+ $ARGV[0] =~ /prog/ ? test_pipe_read : test_pipe_write
+}
+
my @sudo;
-@sudo = (shellwords ($ENV{GRUNTMASTER_SUDO}), '--') if $ENV{GRUNTMASTER_SUDO} && $nobody;
+@sudo = (shellwords ($ENV{GRUNTMASTER_SUDO}), '--') if $ENV{GRUNTMASTER_SUDO} && $sudo;
undef $mlimit if @sudo; # sudo wants a lot of address space
my $ret = fork // die 'Cannot fork';
if ($ret) {
- my $tle;
+ my ($tle, $child_ready);
+ local $SIG{USR1} = sub { $child_ready = 1 };
+ sleep 3; # Wait for ready signal (SIGUSR1)
+ unless ($child_ready) {
+ kill KILL => $ret;
+ exit !say ERR, "\nNo response from gruntmaster-exec child";
+ }
local $SIG{ALRM} = sub {
- if ($killuser) {
- system @sudo, 'pkill', '-KILL', '-u', $killuser;
- } else {
- kill KILL => $ret
- }
+ kill KILL => $ret;
$tle = 1
};
- alarm ($timeout || 5);
+ alarm ($timeout || 10);
waitpid $ret, 0;
alarm 0;
if (@sudo) {
$? = $? >> 8;
- $? = $? < 128 ? ($? << 8) : $? - 128;
+ $? = $? < 128 || $? > 128+32 ? ($? << 8) : $? - 128;
}
my $sig = $? & 127;
my $signame = sig_name $sig;
exit !say TLE, "\nTime Limit Exceeded" if $tle;
exit !say OLE, "\nOutput Limit Exceeded" if $sig && $signame eq 'XFSZ';
- exit !say DIED, "\nCrash (SIG$signame)" if $sig && $signame ne 'PIPE';
+ exit !say DIED, "\nCrash (SIG$signame)" if $sig && ($signame ne 'PIPE' || $ARGV[0] !~ /prog/);
exit !say NZX, "\nNon-zero exit status: " . ($? >> 8) if $? >> 8;
exit !say AC, "\nAll OK";
} else {
$^F = 50;
- if ($close) {
- POSIX::close $_ for 0 .. $^F;
- }
+ POSIX::close 2 unless $keep_stderr;
+ POSIX::close $_ for 0, 1, 3 .. $^F;
for my $fdstring (@fds) {
my ($fd, $file) = split ' ', $fdstring, 2;
open my $fh, $file or die $!;
POSIX::close $oldfd or die $!;
}
}
- my $nproc = $killuser ? 5 : 1;
+ test_pipes if grep /tty|fifo/, @fds;
+ my $nproc = 15;
+ my $debug = $ENV{TEST_VERBOSE};
%ENV = (ONLINE_JUDGE => 1, PATH => $ENV{PATH}, HOME => $ENV{HOME});
setrlimit RLIMIT_AS, $mlimit, $mlimit or die $! if $mlimit;
setrlimit RLIMIT_FSIZE, $olimit, $olimit or die $! if $olimit;
- setrlimit RLIMIT_NPROC, $nproc, $nproc or die $! if $nobody;
- POSIX::setgid $nobody ? 65534 : USER;
- POSIX::setuid $nobody ? 65534 : GROUP;
+ setrlimit RLIMIT_NPROC, $nproc, $nproc or die $! if $sudo;
+ open my $adj, '>', '/proc/self/oom_score_adj';
+ print $adj 900;
+ close $adj;
unshift @ARGV, @sudo;
- say STDERR "Execing: ", join ' ', map { "'$_'" } @ARGV;
+ kill USR1 => getppid; # Tell parent process that we're ready
+ say STDERR "Executing: ", join ' ', map { "'$_'" } @ARGV if $debug;
exec @ARGV;
}