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Server: Windows NT DESKTOP-5B8S0D4 6.2 build 9200 (Windows 8 Professional Edition) i586 Path: D:/xampp182/perl/bin/ [ Home ]

File: crc32

#!perl

# Computes and prints to stdout the CRC-32 values of the given files

use strict;
use lib qw( blib/lib lib );
use Archive::Zip;
use FileHandle;

my $totalFiles = scalar(@ARGV);
foreach my $file (@ARGV) {
    if ( -d $file ) {
        warn "$0: ${file}: Is a directory\n";
        next;
    }
    my $fh = FileHandle->new();
    if ( !$fh->open( $file, 'r' ) ) {
        warn "$0: $!\n";
        next;
    }
    binmode($fh);
    my $buffer;
    my $bytesRead;
    my $crc = 0;
    while ( $bytesRead = $fh->read( $buffer, 32768 ) ) {
        $crc = Archive::Zip::computeCRC32( $buffer, $crc );
    }
    printf( "%08x", $crc );
    print("\t$file") if ( $totalFiles > 1 );
    print("\n");
}