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#!/usr/bin/env perl | ||
# | ||
# xxdi.pl - perl implementation of 'xxd -i' mode | ||
# | ||
# Copyright 2013 Greg Kroah-Hartman <[email protected]> | ||
# 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. | ||
# | ||
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use strict; | ||
use warnings; | ||
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my $indata; | ||
my $var_name = "stdin"; | ||
my $full_output = (@ARGV > 0 && $ARGV[0] eq '-i') ? shift @ARGV : undef; | ||
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{ | ||
local $/; | ||
my $fh; | ||
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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 $full_output; | ||
} else { | ||
die "usage: xxdi.pl [-i] [infile]\n"; | ||
} | ||
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$indata = readline $fh; | ||
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close $fh; | ||
} | ||
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my $len_data = length($indata); | ||
my $num_digits_per_line = 12; | ||
my $outdata = ""; | ||
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# 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 $var_name =~ /^\d/; | ||
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$outdata = "unsigned char $var_name\[] = { " if $full_output; | ||
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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, $key, 1))); | ||
} | ||
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$outdata = substr($outdata, 0, -2); | ||
$outdata .= "\n"; | ||
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$outdata .= "};\nunsigned int $var_name\_len = $len_data;\n" if $full_output; | ||
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binmode STDOUT; | ||
print $outdata; |
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