Hi,all:

----OS:Windows XP,perl5.10,apache 2.2.4

Recentlly,I am reading the book above. in chapter 5, error running the program of file uploads with CGI.pm. Where wrongHThanks.

test.html:
<FORM ACTION="http://localhost/cgi-bin/test.cgi" METHOD="POST" ENCTYPE
+="multipart/form-data">
<P>Please choose a file to upload:
<INPUT TYPE="FILE" NAME="file">
<P>Please enter the name of this file:
<INPUT TYPE="TEXT" NAME="filename">
<p><input type="submit" name="Submit" value="Submit Form" /></p>
</FORM>
[download]

test.cgi:
#!c:/Perl/bin/perl

use CGI;
use Fcntl qw( :DEFAULT :flock );

use constant UPLOAD_DIR     => "E:/Apache2";
use constant BUFFER_SIZE    => 16_384;
use constant MAX_FILE_SIZE  => 1_048_576;       # Limit each upload to
+ 1 MB
use constant MAX_DIR_SIZE   => 100 * 1_048_576; # Limit total uploads 
+to 100 MB
use constant MAX_OPEN_TRIES => 100;

$CGI::DISABLE_UPLOADS   = 0;
$CGI::POST_MAX          = MAX_FILE_SIZE;

my $q = new CGI;
$q->cgi_error and error( $q, "Error transferring file: " . $q->cgi_err
+or );

my $file      = $q->param( "file" )     || error( $q, "No file receive
+d." );
my $filename  = $q->param( "filename" ) || error( $q, "No filename ent
+ered." );
my $fh        = $q->upload( $file );
my $buffer    = "";

if ( dir_size( UPLOAD_DIR ) + $ENV{CONTENT_LENGTH} > MAX_DIR_SIZE ) {
    error( $q, "Upload directory is full." );
}

# Allow letters, digits, periods, underscores, dashes
# Convert anything else to an underscore
$filename =~ s/[^\w.-]/_/g;
if ( $filename =~ /^(\w[\w.-]*)/ ) {
    $filename = $1;
}
else {
    error( $q, "Invalid file name; files must start with a letter or n
+umber." );
}

# Open output file, making sure the name is unique
until ( sysopen OUTPUT, UPLOAD_DIR . $filename, O_CREAT | O_EXCL ) {
    $filename =~ s/(\d*)(\.\w+)$/($1||0) + 1 . $2/e;
    $1 >= MAX_OPEN_TRIES and error( $q, "Unable to save your file." );
}

# This is necessary for non-Unix systems; does nothing on Unix
binmode $fh;
binmode OUTPUT;

# Write contents to output file
while ( read( $fh, $buffer, BUFFER_SIZE ) ) {
    print OUTPUT $buffer;
}

close OUTPUT;


sub dir_size {
    my $dir = shift;
    my $dir_size = 0;
    
    # Loop through files and sum the sizes; doesn't descend down subdi
+rs
    opendir DIR, $dir or die "Unable to open $dir: $!";
    while ( readdir DIR ) {
        $dir_size += -s "$dir/$_";
    }
    return $dir_size;
}


sub error {
    my( $q, $reason ) = @_;
    
    print $q->header( "text/html" ),

          $q->start_html( "Error" ),
          $q->h1( "Error" ),
          $q->p( "Your upload was not procesed because the following e
+rror ",
                 "occured: " ),
          $q->p( $q->i( $reason ) ),
          $q->end_html;
    exit;
}
[download]

By a perl_CGI Beginner.Thank you very much.