X-Git-Url: http://git.ieval.ro/?p=gruntmaster-daemon.git;a=blobdiff_plain;f=gruntmaster-exec;h=49e915a8d5cf131075170b7fcb6539ac1a3a4bd4;hp=69e967e091120763f4e64e11d8ca933232e850de;hb=740c2415f3554be3989e05dc5f36ab6acf514114;hpb=4b5d7885e5a9ebc09f4b4b631a4eb7c3ce5f1c12

diff --git a/gruntmaster-exec b/gruntmaster-exec
index 69e967e..49e915a 100755
--- a/gruntmaster-exec
+++ b/gruntmaster-exec
@@ -1,20 +1,73 @@
-#!/usr/bin/perl -w
+#!/usr/bin/perl
 use v5.14;
 use strict;
+use warnings;
 
-use BSD::Resource qw/setrlimit RLIMIT_AS RLIMIT_FSIZE/;
-use sigtrap qw/XFSZ/;
-
-##################################################
+use constant +{
+	# Accepted
+	AC => 0,
 
-my ($mlimit, $olimit, @args) = @ARGV;
+	# Internal server error
+	ERR => -1,
 
-setrlimit RLIMIT_AS, $mlimit, $mlimit or die $! if $mlimit;
-setrlimit RLIMIT_FSIZE, $olimit, $olimit or die $! if $olimit;
+	# All other errors
+	WA => 1,
+	NZX => 2,
+	TLE => 3,
+	OLE => 4,
+	DIED => 5,
+	REJ => 10,
+};
 
-%ENV = (ONLINE_JUDGE => 1, PATH => $ENV{PATH}, HOME => $ENV{HOME});
-exec @args;
+use BSD::Resource qw/setrlimit RLIMIT_AS RLIMIT_FSIZE/;
+use IPC::Signal qw/sig_name sig_num/;
+use sigtrap qw/XFSZ/;
 
+use Getopt::Long;
+use POSIX qw//;
+use Time::HiRes qw/alarm/;
+
+my (@fds, $timeout, $mlimit, $olimit);
+GetOptions(
+	"fd=s"      => \@fds,
+	"timeout=f" => \$timeout,
+	"mlimit=i"  => \$mlimit,
+	"olimit=i"  => \$olimit,
+);
+
+my $ret = fork // die 'Cannot fork';
+if ($ret) {
+	my $tle;
+	local $SIG{ALRM} = sub { kill KILL => $ret; $tle = 1};
+	alarm ($timeout || 5);
+	waitpid $ret, 0;
+	alarm 0;
+	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 && $signame ne 'PIPE';
+	exit !say NZX,  "\nNon-zero exit status: " . ($? >> 8) if $? >> 8;
+	exit !say AC,   "\nAll OK";
+} else {
+	$^F = 50;
+	POSIX::close $_ for 0 .. $^F;
+	for my $fdstring (@fds) {
+		my ($fd, $file) = split ' ', $fdstring, 2;
+		open my $fh, $file or die $!;
+		my $oldfd = fileno $fh;
+		if ($oldfd != $fd) {
+			POSIX::dup2 $oldfd, $fd or die $!;
+			POSIX::close $oldfd or die $!;
+		}
+	}
+	%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;
+	exec @ARGV;
+}
+
+1;
 __END__
 
 =encoding utf-8