51 lines
1.3 KiB
Perl
51 lines
1.3 KiB
Perl
|
#!/usr/bin/env perl
|
||
|
|
#
|
||
|
|
# xxdi.pl - perl implementation of 'xxd -i' mode
|
||
|
|
#
|
||
|
|
# Copyright 2013 Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
||
|
|
# Copyright 2013 Linux Foundation
|
||
|
|
#
|
||
|
|
# Released under the GPLv2.
|
||
|
|
#
|
||
|
|
# Implements the "basic" functionality of 'xxd -i' in perl to keep build
|
||
|
|
# systems from having to build/install/rely on vim-core, which not all
|
||
|
|
# distros want to do. But everyone has perl, so use it instead.
|
||
|
|
#
|
||
|
|
|
||
|
|
use strict;
|
||
|
|
use warnings;
|
||
|
|
use File::Slurp qw(slurp);
|
||
|
|
|
||
|
|
my $indata = slurp(@ARGV ? $ARGV[0] : \*STDIN);
|
||
|
|
my $len_data = length($indata);
|
||
|
|
my $num_digits_per_line = 12;
|
||
|
|
my $var_name;
|
||
|
|
my $outdata;
|
||
|
|
|
||
|
|
# Use the variable name of the file we read from, converting '/' and '.
|
||
|
|
# to '_', or, if this is stdin, just use "stdin" as the name.
|
||
|
|
if (@ARGV) {
|
||
|
|
$var_name = $ARGV[0];
|
||
|
|
$var_name =~ s/\//_/g;
|
||
|
|
$var_name =~ s/\./_/g;
|
||
|
|
} else {
|
||
|
|
$var_name = "stdin";
|
||
|
|
}
|
||
|
|
|
||
|
|
$outdata .= "unsigned char $var_name\[] = {";
|
||
|
|
|
||
|
|
# trailing ',' is acceptable, so instead of duplicating the logic for
|
||
|
|
# just the last character, live with the extra ','.
|
||
|
|
for (my $key= 0; $key < $len_data; $key++) {
|
||
|
|
if ($key % $num_digits_per_line == 0) {
|
||
|
|
$outdata .= "\n\t";
|
||
|
|
}
|
||
|
|
$outdata .= sprintf("0x%.2x, ", ord(substr($indata, $key, 1)));
|
||
|
|
}
|
||
|
|
|
||
|
|
$outdata .= "\n};\nunsigned int $var_name\_len = $len_data;\n";
|
||
|
|
|
||
|
|
binmode STDOUT;
|
||
|
|
print {*STDOUT} $outdata;
|
||
|
|
|