『AskWan』

if ($ENV{'REQUEST_METHOD'} eq 'POST') {
  read(STDIN, $buffer, $ENV{'CONTENT_LENGTH'});
} else {
  $buffer = $ENV{'QUERY_STRING'};
}
@pairs = split(/&/, $buffer);
foreach $pair (@pairs) {
  ($name, $value) = split(/=/, $pair);
  $name =~ tr/+/ /;
  $name =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C", hex($1))/eg;
  $value =~ tr/+/ /;
  $value =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C", hex($1))/eg;
  $FORM{$name} = $value;
}

open (MAIL,"|/usr/lib/sendmail");
print MAIL "To: to\@e.mail\n";
print MAIL "From: from\@e.mail\n";
print MAIL "Subject: Subject\n\n";
print MAIL "Body\n";
close MAIL;

$ip = $ENV{'REMOTE_ADDR'};
@digits = split (/\./, $ip);
$address = pack ("C4", @digits);
$host = gethostbyaddr ($address, 2);