diff options
Diffstat (limited to 'ubi-utils/perl')
| -rw-r--r-- | ubi-utils/perl/f128_nand_sample.cfg | 38 | ||||
| -rw-r--r-- | ubi-utils/perl/f64_nor_sample.cfg | 39 | ||||
| -rwxr-xr-x | ubi-utils/perl/mkpfi | 723 | ||||
| -rwxr-xr-x | ubi-utils/perl/ubicrc32.pl | 74 |
4 files changed, 0 insertions, 874 deletions
diff --git a/ubi-utils/perl/f128_nand_sample.cfg b/ubi-utils/perl/f128_nand_sample.cfg deleted file mode 100644 index e468d9d..0000000 --- a/ubi-utils/perl/f128_nand_sample.cfg +++ /dev/null @@ -1,38 +0,0 @@ -[targets] -complete=ipl,spl,bootenv,kernel,rootfs -bootcode=spl,bootenv - -# Build sections -[ipl] -image=ipl.bin -raw_starts=0x00000000 -raw_total_size=128kiB - -[spl] -image=u-boot.bin -ubi_ids=2,3 -ubi_size=2MiB -ubi_type=static -ubi_names=spl_0,spl_1 - -[bootenv] -bootenv_file=bootenv_complete.txt -ubi_ids=4,5 -ubi_size=128kiB -ubi_type=static -ubi_names=bootenv_0,bootenv_1 - -[kernel] -image=vmlinux.bin -ubi_ids=6,7 -ubi_size=6MiB -ubi_type=static -ubi_names=kernel_0,kernel_1 - -[rootfs] -image=rootfs.bin -ubi_ids=8,9 -ubi_alignment=2kiB -ubi_size=16MiB -ubi_type=dynamic -ubi_names=rootfs_0,rootfs_1 diff --git a/ubi-utils/perl/f64_nor_sample.cfg b/ubi-utils/perl/f64_nor_sample.cfg deleted file mode 100644 index fd44e27..0000000 --- a/ubi-utils/perl/f64_nor_sample.cfg +++ /dev/null @@ -1,39 +0,0 @@ -[targets] -complete=ipl,spl,bootenv,kernel,rootfs -bootcode=spl,bootenv -rootfs=rootfs - -# Build sections -[ipl] -image=ipl.bin -raw_starts=0x02FE0000, 0x03FE0000 -raw_total_size=128kiB - -[spl] -image=u-boot.bin -ubi_ids=2,3 -ubi_size=2MiB -ubi_type=static -ubi_names=spl_0,spl_1 - -[bootenv] -bootenv_file=bootenv_complete.txt -ubi_ids=4,5 -ubi_size=128kiB -ubi_type=static -ubi_names=bootenv_0,bootenv_1 - -[kernel] -image=vmlinux.bin -ubi_ids=6,7 -ubi_size=6MiB -ubi_type=static -ubi_names=kernel_0,kernel_1 - -[rootfs] -image=rootfs.bin -ubi_ids=8,9 -ubi_alignment=2kiB -ubi_size=16128kiB -ubi_type=dynamic -ubi_names=rootfs_0,rootfs_1 diff --git a/ubi-utils/perl/mkpfi b/ubi-utils/perl/mkpfi deleted file mode 100755 index 2cce587..0000000 --- a/ubi-utils/perl/mkpfi +++ /dev/null @@ -1,723 +0,0 @@ -#!/usr/bin/perl -# -# Copyright (c) International Business Machines Corp., 2006 -# -# This program is free software; you can redistribute it and/or modify -# it under the terms of the GNU General Public License as published by -# the Free Software Foundation; either version 2 of the License, or -# (at your option) any later version. -# -# This program is distributed in the hope that it will be useful, -# but WITHOUT ANY WARRANTY; without even the implied warranty of -# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -# the GNU General Public License for more details. -# -# You should have received a copy of the GNU General Public License -# along with this program; if not, write to the Free Software -# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. -# - -# -# mkpfi -# -# This perl program is assembles PFI files from a config file. -# -# Author: Oliver Lohmann (oliloh@de.ibm.com) -# -use warnings; -use strict; -use lib "/usr/lib/perl5"; # Please change this path as you need it, or - # make a proposal how this could be done - # nicer. -use Getopt::Long; -use Pod::Usage; -use Config::IniFiles; -use File::Temp; - -# ---------------------------------------------------------------------------- -# Versions -our $version : unique = "0.1"; -our $pfi_version : unique = "0x1"; - -# ---------------------------------------------------------------------------- -# Globals -my $verbose = 0; -my $cfg; - -my %opts = (); -my %files = (config => ""); -my @tmp_files; - -my %tools = (ubicrc32 => "ubicrc32"); - -# ---------------------------------------------------------------------------- -# Processing the input sections -# -# The idea is to combine each section entry with a function -# in order to allow some kind of preprocessing for the values -# before they are written into the PFI file. -# This is especially useful to be more verbose and -# user-friendly in the layout file. -# -# All key-function hashes are applied after the general -# validation of the configuration file. -# If any mandatory key is missing in a section the user -# will be informed and the PFI creation process is aborted. -# -# Default keys will be checked for their presence inside the config -# file. If they are missing, they will be generated with appr. values. - -# Mandatory keys for UBI volumes. -my %ubi_keys = ("ubi_ids" => \&check_id_list, - "ubi_size" => \&replace_num, - "ubi_type" => \&replace_type, - "ubi_names" => \&remove_spaces, - "ubi_alignment" => \&replace_num); - -# Mandatory keys for RAW sections. -my %raw_keys = ("raw_starts" => \&expand_starts, - "raw_total_size" => \&replace_num); - -# Common default keys for documentation and control purposes. -my %common_keys = ("flags" => \&replace_num, - "label" => \&do_nothing); - -# Define any defaults here. Values which maintained in this default -# region need not to be specified by the user explicitly. -my %def_ubi_keys = ("ubi_alignment" => [\&set_default, "0x1"]); -my %def_raw_keys = (); -my %def_common_keys = ("flags" => [\&set_default, "0x0"], - "label" => [\&generate_label, ""]); - -# ---------------------------------------------------------------------------- -# Input keys, actually the path to the input data. - -my %input_keys = ("image" => \&do_nothing); - -# Placeholder keys allow the replacement via a special -# purpose function. E.g. the bootenv_file key will be used -# to generate bootenv binary data from an text file and -# replace the bootenv_file key with an image key to handle it -# in the same way in the further creation process. -my %input_placeholder_keys = ("bootenv_file" => \&create_bootenv_image); - -# ---------------------------------------------------------------------------- -# Helper - -# @brief Get current time string. -sub get_date { - my $tmp = scalar localtime; - $tmp =~ s/ /_/g; - return $tmp; -} - -# @brief Print an info message to stdout. -sub INFO($) { - my $str = shift; - - if (!$verbose) { - return; - } - - print STDOUT $str; -} - -# @brief Print an error message to stderr. -sub ERR($) { - my $str = shift; - print STDERR $str; -} - -# @brief Print a warning message to stderr. -sub WARN($) { - my $str = shift; - print STDERR $str; -} - -sub parse_command_line($) { - my $opt = shift; - my $result = GetOptions( "help" => \$$opt{'help'}, - "man" => \$$opt{'man'}, - "config=s" => \$$opt{'config'}, - "verbose" => \$$opt{'verbose'}, - ) or pod2usage(2); - pod2usage(1) if defined ($$opt{help}); - pod2usage(-verbose => 2) if defined ($$opt{man}); - - $verbose = $$opt{verbose} if defined $$opt{verbose}; - - if (!defined $$opt{config}) { - ERR("[ ERROR: No config file specified. Aborting...\n"); - exit 1; - } - -} - -# @brief Check if all needed tools are in PATH. -sub check_tools { - my $err = 0; - my $key; - - foreach $key (keys %tools) { - if (`which $tools{$key}` eq "") { - ERR("\n") if ($err == 0); - ERR("! Please add the tool \'$tools{$key}\' " . - "to your path!\n"); - $err = 1; - } - } - die "[ ERROR: Did not find all needed tools!\n" if $err; -} - -sub open_cfg_file($) { - my $fname = shift; - my $res = new Config::IniFiles( -file => $fname ); - - die "[ ERROR: Cannot load your config file!\n" if (!defined $res); - return $res; -} - -sub set_default($$$$) { - my ($cfg, $section, $parameter, $def_value) = @_; - $cfg->newval($section, $parameter, $def_value); - return; -} - -sub generate_label($$$$) { - my ($cfg, $section, $parameter, $def_value) = @_; - my $new_label = $def_value . $section; - $new_label .= "_" . get_date; - $cfg->newval($section, $parameter, $new_label); - return; -} - -# @brief Converts any num to a unified hex string, i.e the resulting value -# always starts with "0x" and is aligned to 8 hexdigits. -# @return Returns 0 on success, otherwise an error occured. -# -sub any_num_to_hex($$) { - my $val = shift; - my $res = shift; - - # M(iB) - if ($val =~ m/([0-9]+)[Mm][i]?[Bb]?/g) { - $$res = sprintf("0x%08x", $1 * 1024 * 1024); - } - # k(iB) - elsif ($val =~ m/([0-9]+)[kK][i]?[Bb]?/g) { - $$res = sprintf("0x%08x", $1 * 1024); - } - # hex - elsif ($val =~ m/0x?([0-9a-fA-F]+)/g) { - $$res = sprintf("0x%08x", hex $1); - } - # decimal - elsif ($val =~ m/^([0-9]+)$/g) { - $$res = sprintf("0x%08x", $1); - } - else { - $$res = ""; - return -1; - } - - return 0; -} - -sub remove_spaces($$$) { - my ($cfg, $section, $parameter) = @_; - my ($start, @starts, @new_starts); - my $val = $cfg->val($section, $parameter); - my $res; - - $val =~ s/ //g; # spaces - $cfg->newval($section, $parameter, $val); -} - -sub expand_starts($$$) { - my ($cfg, $section, $parameter) = @_; - my ($start, @starts, @new_starts); - my $val = $cfg->val($section, $parameter); - my $res; - - $val =~ s/ //g; # spaces - @starts = split(/,/, $val); - - foreach $start (@starts) { - if (any_num_to_hex($start, \$res) != 0) { - ERR("[ ERROR: [$section]\n"); - ERR("[ Expecting a list of numeric " . - "values for parameter: $parameter\n"); - exit 1; - } - push (@new_starts, $res); - } - $res = join(',', @starts); - - $cfg->newval($section, $parameter, $res); -} - -sub check_id_list($$$) { - my ($cfg, $section, $parameter) = @_; - my $val = $cfg->val($section, $parameter); - my $res; - - if (!($val =~ m/^[0-9]+[,0-9]*/)) { - ERR("[ ERROR: Syntax error in 'ubi_ids' in " . - "section '$section': $val\n"); - ERR("[ Aborting... "); - exit 1; - } -} - -sub replace_type($$$) { - my ($cfg, $section, $parameter) = @_; - my $val = $cfg->val($section, $parameter); - my $res; - - $res = lc($val); - grep {$res eq $_} ('static', 'dynamic') - or die "[ ERROR: Unknown UBI Volume Type in " . - "section '$section': $val\n"; - - $cfg->newval($section, $parameter, $res); -} - - -sub replace_num($$$) { - my ($cfg, $section, $parameter) = @_; - my $val = $cfg->val($section, $parameter); - my $res = ""; - - if (any_num_to_hex($val, \$res) != 0) { - ERR("[ ERROR: [$section]\n"); - ERR("[ Expecting a numeric value " . - "for parameter: $parameter\n"); - exit 1; - } - $cfg->newval($section, $parameter, $res); -} - -sub do_nothing($$$) { - my ($cfg, $section, $parameter) = @_; - return; -} - -sub bootenv_sanity_check($) { - my $env = shift; # hash array containing bootenv - my %pdd = (); - - defined($$env{'pdd'}) or return "'pdd' not defined"; - foreach (split /,/, $$env{'pdd'}) { - defined($$env{$_}) or return "undefined '$_' in pdd"; - $pdd{$_} = 1; - } - - defined $$env{'pdd_preserve'} or - return ""; - foreach (split /,/, $$env{'pdd_preserve'}) { - defined($pdd{$_}) - or return "pdd_preserve field '$_' not in pdd"; - } - return ""; -} - -sub create_bootenv_image($$$) { - my ($cfg, $section, $parameter) = @_; - my $txt_fn = $cfg->val($section, "bootenv_file"); - my $in; - - my %value = (); - my @key = (); - - open $in, "<", $txt_fn - or die "[ ERROR: can't open bootenv file '$txt_fn'.\n"; - while (<$in>) { - next if (/^\s*(\#.*)?$/); # Skip comments/whitespace. - - if (/^(\S+?)\+\=(.*)$/) { - defined($value{$1}) or - die "$txt_fn:$.: error: appending to" . - " non-existent '$1'\n"; - $value{$1} .= $2; - } elsif (/^(\S+?)\=(.*)$/) { - not defined($value{$1}) or - die "$txt_fn:$.: error: trying to" . - " redefine '$1'\n"; - push @key, $1; - $value{$1} = $2; - } else { - die "$txt_fn:$.: error: unrecognized syntax\n"; - } - } - close $in; - - $_ = &bootenv_sanity_check(\%value) - and die "$txt_fn: error: $_\n"; - - my $tmp_file = new File::Temp(); - push (@tmp_files, $tmp_file); - - foreach (@key) { - print $tmp_file "$_=", $value{$_}, "\0"; - } - close $tmp_file; - - $cfg->newval($section, "image", $tmp_file-> filename); -} - -sub process_keys($$$) { - my ($cfg, $section, $keys) = @_; - my @parameters = $cfg->Parameters($section); - my $i; - - for ($i = 0 ; $i < scalar(@parameters) ; $i++ ) { - if (defined($$keys{$parameters[$i]})) { - $$keys{$parameters[$i]}->($cfg, $section, - $parameters[$i]); - } - } - -} - -sub is_in_keylist($$) { - my ($key, $keys) = @_; - my $i; - - for ($i = 0; $i < scalar(@$keys); $i++) { - if ($$keys[$i] eq $key) { - return 1; - } - } - - return 0; -} - -sub check_default_keys($$$) { - my ($cfg, $section, $keys) = @_; - my @parameters = $cfg->Parameters($section); - my $key; - - foreach $key (keys %$keys) { - if (!is_in_keylist($key, \@parameters)) { - $$keys{$key}[0]-> - ($cfg, $section, $key, $$keys{$key}[1]); - } - } - -} - - - -sub check_keys($$$) { - my ($cfg, $section, $keys) = @_; - my @parameters = $cfg->Parameters($section); - my ($i, $key, $err); - - $err = 0; - for ($i = 0 ; $i < scalar(@$keys) ; $i++ ) { - if (!is_in_keylist($$keys[$i], \@parameters)) { - ERR("[ ERROR: [$section]\n") if $err == 0; - $err = 1; - ERR("[ Missing key '$$keys[$i]'\n"); - } - } - - if ($err) { - ERR("[ Aborting...\n"); - exit 1; - } -} - -sub push_pfi_data($$$$$) { - my ($cfg, $section, $pfi_infos, $keys, $mode) = @_; - my ($tmp, $i, $hdr); - - my %pfi_info = (); - $pfi_info{'mode'} = $mode; - $pfi_info{'image'} = $cfg->val($section, "image"); - - # Build the PFI header - $hdr = sprintf("PFI!\n"); - $hdr .= sprintf("version=0x%08x\n", hex $pfi_version); - $hdr .= sprintf("mode=$mode\n"); - - # calculate the size of the binary data part - $tmp = -s $cfg->val($section, "image"); - if (!defined $tmp) { - ERR("[ ERROR: [$section]\n"); - ERR("[ Missing input image: " - . $cfg->val($section, "image") . "\n"); - exit 1; - } - # Check for the image to fit into the given space - my $quota; - if ($mode eq 'raw') { - $quota = oct $cfg->val($section, "raw_total_size"); - } elsif ($mode eq 'ubi') { - $quota = oct $cfg->val($section, "ubi_size"); - } - $tmp <= $quota - or die "[ERROR: image file too big: " . - $cfg->val($section, "image") . "\n"; - $pfi_info{'size'} = $tmp; - - $hdr .= sprintf("size=0x%08x\n", $tmp); - - my $img_file = $cfg->val($section, "image"); - my $crc32 = `$tools{'ubicrc32'} $img_file 2>&1`; - if (any_num_to_hex($crc32, \$tmp) != 0) { - die "[ ERROR: $tools{'ubicrc32'} returned with errors"; - } - $hdr .= sprintf("crc=$tmp\n"); - - - # Process all remaining keys - for ($i = 0; $i < scalar (@$keys); $i++) { - if ($$keys[$i] eq "image") { # special case image input file - if (! -e ($tmp = $cfg->val($section, "image"))) { - ERR("[ ERROR: [$section]\n"); - ERR("[ Cannot find input file $tmp\n"); - exit 1; - } - next; - } - $hdr .= sprintf("%s=%s\n", $$keys[$i], - $cfg->val($section, $$keys[$i])); - } - - $hdr .= sprintf("\n"); # end marker for PFI-header - - $pfi_info{'header'} = $hdr; - - # store in the header list - push @$pfi_infos, \%pfi_info; -} - -sub process_section($$$$$$) { - my ($cfg, $section, $pfi_infos, $custom_keys, - $def_custom_keys, $mode) = @_; - my @keys = (keys %common_keys, keys %$custom_keys); - my @complete_keys = (@keys, keys %input_keys); - - # set defaults if necessary - check_default_keys($cfg, $section, $def_custom_keys); - check_default_keys($cfg, $section, \%def_common_keys); - - # check for placeholders... - process_keys($cfg, $section, \%input_placeholder_keys); - - # VALIDATE layout.cfg entries - check_keys($cfg, $section, \@complete_keys); - - # execute linked functions (if any) - process_keys($cfg, $section, \%common_keys); - process_keys($cfg, $section, $custom_keys); - - push_pfi_data($cfg, $section, $pfi_infos, \@keys, $mode); -} - -sub get_section_info($$) { - my ($cfg, $section) = @_; - my @parameters = $cfg->Parameters($section); - my ($ubi, $raw, $i, @res); - - $ubi = $raw = 0; - for ($i = 0 ; $i < scalar(@parameters) ; $i++ ) { - if ($parameters[$i] =~ m/ubi_/gi) { - $ubi = 1; - @res = (\%ubi_keys, \%def_ubi_keys, "ubi"); - } - if ($parameters[$i] =~ m/raw_/gi) { - $raw = 1; - @res = (\%raw_keys, \%def_raw_keys, "raw"); - } - } - - if (($ubi + $raw) != 1) { # double definition in section - ERR("[ ERROR: Layout error in section '$section'\n"); - exit 1; - } - - return @res; -} - -sub mk_target_list($$) { - my $val = shift; - my $tmp = shift; - my $complete = 0; - - if ($val =~ m/\((.*)\)/g) { - $val = $1; - $complete = 1; - } - $val =~ s/ //g; # spaces - - @$tmp = split(/,/, $val); - - return $complete; -} - -sub copy_bytes($$$) { - my ($in, $out, $to_copy) = @_; - - while ($to_copy) { - my $buf; - my $bufsize = 1024*1024; - - $bufsize < $to_copy or $bufsize = $to_copy; - read($in, $buf, $bufsize) == $bufsize - or die "[ ERROR: Image file shrunk during operation\n"; - print $out $buf; - $to_copy -= $bufsize; - } -} - -sub write_target($$) { - my ($pfi_infos, $target) = @_; - my ($pfi_info); - - INFO("[ Writting target pfi file: '$target.pfi'...\n"); - if (-e "$target.pfi") { - WARN("! Replaced old pfi...\n"); - `rm -f $target.pfi`; - } - open(FILE, ">", "$target.pfi") - or die "[ ERROR: Cannot create output file: $target.pfi\n"; - binmode(FILE); - - # @FIXME sort by mode (first raw, then ubi) - # Currently this ordering is based on a string comparism. :-) - @$pfi_infos = sort {(lc $$a{'mode'}) cmp (lc $$b{'mode'})} @$pfi_infos; - - # Print all headers first - foreach $pfi_info (@$pfi_infos) { - print FILE $$pfi_info{'header'}; - - } - # Print the linked data sections - print FILE "DATA\n"; - foreach $pfi_info (@$pfi_infos) { - open(IMAGE, "<", $$pfi_info{'image'}) - or die "[ ERROR: Cannot open input image: " . - "$$pfi_info{'image'}" . "\n"; - binmode(IMAGE); - ©_bytes(\*IMAGE, \*FILE, $$pfi_info{'size'}); - close(IMAGE) or die "[ ERROR: Cannot close input image: " . - "$$pfi_info{'image'}" . "\n"; - } - close(FILE) or die "[ ERROR: Cannot close output file: $target.pfi\n"; -} - -sub process_config($) { - my $cfg = shift; - my @sections = $cfg->Sections; - my ($i, $j, $keylist, $def_keylist, $mode, $tmp, - @tlist, $complete,@pfi_infos); - - my @parameters = $cfg->Parameters("targets") or - die "[ ERROR: Config file has no 'targets' section!\n"; - - for ($i = 0 ; $i < scalar(@parameters) ; $i++ ) { - INFO("[ Processing target '$parameters[$i]'...\n"); - @pfi_infos = (); - - # get a list of subtargets - $complete = mk_target_list($cfg->val("targets", - $parameters[$i]), \@tlist); - # build all subtargets - for ($j = 0 ; $j < scalar(@tlist) ; $j++ ) { - ($keylist, $def_keylist, $mode) - = get_section_info($cfg, $tlist[$j]); - process_section($cfg, $tlist[$j], - \@pfi_infos, - $keylist, $def_keylist, $mode); - } - - write_target(\@pfi_infos, $parameters[$i]); - } - - INFO("[ Success.\n"); - - -} - -sub clear_files() { - # @FIXME: - # Works implicitly and Fedora seems to have removed - # the cleanup call. Thus for now, inactive. - # File::Temp::cleanup(); -} - -require 5.008_000; # Tested with version 5.8.0. -select STDOUT; $| = 1; # make STDOUT output unbuffered -select STDERR; $| = 1; # make STDERR output unbuffered - -parse_command_line(\%opts); -check_tools; -$cfg = open_cfg_file($opts{config}); -process_config($cfg); -clear_files; - -__END__ - - -=head1 NAME - -mkpfi - Using GetOpt::Long, Pod::Usage, Config::IniFiles - - -=head1 SYNOPSIS - -mkpfi [OPTIONS ...] - - - OPTION - - [--config] [--help] [--man] - - -=head1 ABSTRACT - -Perl script for generating pdd pfi files from given config files. - -=head1 OPTIONS - -=over - -=item B<--help> - -Print out brief help message. - -=item B<--usage> - -Print usage. - -=item B<--config> - -Config input file. - -=item B<--man> - -Print manual page, same as 'perldoc mkpfi'. - -=item B<--verbose> - -Be verbose! - -=back - -=head1 BUGS - -Report via MTD mailing list - - -=head1 SEE ALSO - -http://www.linux-mtd.infradead.org/ - - -=head1 AUTHOR - -Oliver Lohmann (oliloh@de.ibm.com) - -=cut diff --git a/ubi-utils/perl/ubicrc32.pl b/ubi-utils/perl/ubicrc32.pl deleted file mode 100755 index add5f9d..0000000 --- a/ubi-utils/perl/ubicrc32.pl +++ /dev/null @@ -1,74 +0,0 @@ -#!/usr/bin/perl -w - -# Subroutine crc32(): Calculates the CRC on a given string. - -{ - my @table = (); - - # @brief Calculate CRC32 for a given string. - sub crc32 - { - unless (@table) { - # Initialize the CRC table - my $poly = 0xEDB88320; - @table = (); - - for my $i (0..255) { - my $c = $i; - - for my $j (0..7) { - $c = ($c & 1) ? (($c >> 1) ^ $poly) : ($c >> 1); - } - $table[$i] = $c; - } - } - my $s = shift; # string to calculate the CRC for - my $crc = shift; # CRC start value - - defined($crc) - or $crc = 0xffffffff; # Default CRC start value - - for (my $i = 0; $i < length($s); $i++) { - $crc = $table[($crc ^ ord(substr($s, $i, 1))) & 0xff] - ^ ($crc >> 8); - } - return $crc; - } -} - -sub crc32_on_file -{ - my $file = shift; - - my $crc32 = crc32(''); - my $buf = ''; - my $ret = 0; - - while ($ret = read($file, $buf, 8192)) { - $crc32 = crc32($buf, $crc32); - } - defined($ret) - or return undef; - printf("0x%x\n", $crc32); -} - - -# Main routine: Calculate the CRCs on the given files and print the -# results. - -{ - if (@ARGV) { - while (my $path = shift) { - my $file; - open $file, "<", $path - or die "Error opening '$path'.\n"; - - &crc32_on_file($file) - or die "Error reading from '$path'.\n"; - close $file; - } - } else { - &crc32_on_file(\*STDIN) - or die "Error reading from stdin.\n"; - } -} |