Write an empty STDIN PDU to indicate stdin EOF.

[catagits/fcgi2.git] / examples / echo-perl

#!./perl
#
#  echo-perl --
# 
# 	Produce a page containing all FastCGI inputs
# 
# Copyright (c) 1996 Open Market, Inc.
#
# See the file "LICENSE.TERMS" for information on usage and redistribution
# of this file, and for a DISCLAIMER OF ALL WARRANTIES.
# 
#  $Id: echo-perl,v 1.1 1997/09/16 15:36:28 stanleyg Exp $
#

use FCGI;

sub print_env {
    my($label, $envp) = @_;
    print("$label:<br>\n<pre>\n");
    my @keys = sort keys(%$envp);
    foreach $key (@keys) {
        print("$key=$$envp{$key}\n");
    }
    print("</pre><p>\n");
}

while (($key, $val) = each %ENV) {
    $initialEnv{$key} = $val;
}
$count = 0;
while(FCGI::accept() >= 0) {
    print("Content-type: text/html\r\n\r\n",
          "<title>FastCGI echo (Perl)</title>\n",
          "<h1>FastCGI echo (Perl)</h1>\n",
          "Request number ", ++$count, "<p>\n");
    $len = 0 + $ENV{'CONTENT_LENGTH'};
    if($len == 0) {
        print("No data from standard input.<p>\n");
    } else {
        print("Standard input:<br>\n<pre>\n");
        for($i = 0; $i < $len; $i++) {
            $ch = getc(STDIN);
            if($ch eq "") {
                print("Error: Not enough bytes received ",
                      "on standard input<p>\n");
                last;
	    }
            print($ch);
        }
        print("\n</pre><p>\n");
    }
    print_env("Request environment", \%ENV);
    print_env("Initial environment", \%initialEnv);
}