環境変数出力cgiの一例
#!/usr/local/bin/perl
# 時間の取得
($sec,$min,$hour,$mday,$mon,$year,$wno) = localtime(time);
$time = sprintf(“(%01d/%01d %02d:%02d:%02d)”,$mon+1,$mday,$hour,$min,$sec);
# HOST_NAME ホスト名
$host_name = &GetHostName($ENV{‘REMOTE_ADDR’});
sub GetHostName {
my($ip_address) = @_;
my(@addr) = split(/\./, $ip_address);
my($packed_addr) = pack(“C4”, $addr[0], $addr[1], $addr[2], $addr[3]);
my($name, $aliases, $addrtype, $length, @addrs);
($name, $aliases, $addrtype, $length, @addrs) = gethostbyaddr($packed_addr, 2);
return $name;
}
# REMOTE_ADDR リモートIPアドレス
$addr = $ENV{‘REMOTE_ADDR’};
# HTTP_REFERER 参照元URL
$referer = $ENV{‘HTTP_REFERER’};
# HTTP_USER_AGENT ユーザエージェント
$user_agent = $ENV{‘HTTP_USER_AGENT’};
print “Content-type: text/html\n\n”;
print <<“EOM”;
<!DOCTYPE HTML PUBLIC “-//W3C//DTD HTML 4.01 Transitional//EN”>
<html lang=”ja”>
<head>
<META HTTP-EQUIV=”Content-type” CONTENT=”text/html; charset=Shift_JIS”>
<META HTTP-EQUIV=”Content-Style-Type” content=”text/css”>
<title>環境変数</title></head>
<body bgcolor=”#FFFFFF” text=”#000000″>
<br/>
<br/> [環境変数出力]
<br/>
<br/> <b>HOST_NAME</b>＝ <font color=”#e60044″><strong>$host_name</strong></font>
<br/>
<br/> <b>REMOTE_ADDR</b>＝ <font color=”#e60044″><strong>$addr</strong></font>
<br/>
<br/> <b>REMOTE_REFERER</b>＝ <font color=”#e60044″><strong>$referer</strong></font>
<br/>
<br/> <b>REMOTE_USER_AGENT</b>＝ <font color=”#e60044″><strong>$user_agent</strong></font>
<br/>
<br/> $time
</body>
</html>
EOM
exit;
