mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-24 15:56:49 +00:00
06e01e817e
So it can serve as a standalone drop in replacement for xxd utility used currently mostly in U-Boot packages with `xxd -i` mode which outputs C include file style, with aim for byte to byte identical output, so the eventual difference in the generated output is easily spottable. Fixes: #10555 Signed-off-by: Petr Štetiar <ynezz@true.cz> Signed-off-by: Jo-Philipp Wich <jo@mein.io> [perl-fu]
67 lines
1.6 KiB
Perl
Executable File
67 lines
1.6 KiB
Perl
Executable File
#!/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;
|
|
|
|
my $indata;
|
|
my $var_name = "stdin";
|
|
my $full_output = (@ARGV > 0 && $ARGV[0] eq '-i') ? shift @ARGV : undef;
|
|
|
|
{
|
|
local $/;
|
|
my $fh;
|
|
|
|
if (@ARGV) {
|
|
$var_name = $ARGV[0];
|
|
open($fh, '<:raw', $var_name) || die("xxdi.pl: Unable to open $var_name: $!\n");
|
|
} elsif (! -t STDIN) {
|
|
$fh = \*STDIN;
|
|
undef $full_output;
|
|
} else {
|
|
die "usage: xxdi.pl [-i] [infile]\n";
|
|
}
|
|
|
|
$indata = readline $fh;
|
|
|
|
close $fh;
|
|
}
|
|
|
|
my $len_data = length($indata);
|
|
my $num_digits_per_line = 12;
|
|
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.
|
|
$var_name =~ s/\//_/g;
|
|
$var_name =~ s/\./_/g;
|
|
$var_name = "__$var_name" if $var_name =~ /^\d/;
|
|
|
|
$outdata = "unsigned char $var_name\[] = { " if $full_output;
|
|
|
|
for (my $key= 0; $key < $len_data; $key++) {
|
|
if ($key % $num_digits_per_line == 0) {
|
|
$outdata = substr($outdata, 0, -1)."\n ";
|
|
}
|
|
$outdata .= sprintf("0x%.2x, ", ord(substr($indata, $key, 1)));
|
|
}
|
|
|
|
$outdata = substr($outdata, 0, -2);
|
|
$outdata .= "\n";
|
|
|
|
$outdata .= "};\nunsigned int $var_name\_len = $len_data;\n" if $full_output;
|
|
|
|
binmode STDOUT;
|
|
print $outdata;
|