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proc
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self
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root
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proc
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thread-self
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root
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usr
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share
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perl5
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vendor_perl
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Digest
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files >> //proc/self/root/proc/thread-self/root/usr/share/perl5/vendor_perl/Digest/file.pm
package Digest::file; use strict; use Exporter (); use Carp qw(croak); use Digest (); use vars qw($VERSION @ISA @EXPORT_OK); $VERSION = "1.16"; @ISA = qw(Exporter); @EXPORT_OK = qw(digest_file_ctx digest_file digest_file_hex digest_file_base64); sub digest_file_ctx { my $file = shift; croak("No digest algorithm specified") unless @_; local *F; open(F, "<", $file) || croak("Can't open '$file': $!"); binmode(F); my $ctx = Digest->new(@_); $ctx->addfile(*F); close(F); return $ctx; } sub digest_file { digest_file_ctx(@_)->digest; } sub digest_file_hex { digest_file_ctx(@_)->hexdigest; } sub digest_file_base64 { digest_file_ctx(@_)->b64digest; } 1; __END__ =head1 NAME Digest::file - Calculate digests of files =head1 SYNOPSIS # Poor mans "md5sum" command use Digest::file qw(digest_file_hex); for (@ARGV) { print digest_file_hex($_, "MD5"), " $_\n"; } =head1 DESCRIPTION This module provide 3 convenience functions to calculate the digest of files. The following functions are provided: =over =item digest_file( $file, $algorithm, [$arg,...] ) This function will calculate and return the binary digest of the bytes of the given file. The function will croak if it fails to open or read the file. The $algorithm is a string like "MD2", "MD5", "SHA-1", "SHA-512". Additional arguments are passed to the constructor for the implementation of the given algorithm. =item digest_file_hex( $file, $algorithm, [$arg,...] ) Same as digest_file(), but return the digest in hex form. =item digest_file_base64( $file, $algorithm, [$arg,...] ) Same as digest_file(), but return the digest as a base64 encoded string. =back =head1 SEE ALSO L<Digest>
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