forked from wolfSSL/wolfssl
72 lines
1.4 KiB
Perl
Executable File
72 lines
1.4 KiB
Perl
Executable File
#!/usr/bin/perl
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# dertoc.pl
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# version 1.0
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# Updated 07/31/2018
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#
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# Copyright (C) 2006-2018 wolfSSL Inc.
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#
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use strict;
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use warnings;
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my $num_args = $#ARGV + 1;
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if ($num_args != 3 ) {
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print "usage: ./scripts/dertoc.pl ./certs/server-cert.der server_cert_der_2048 dertoc.c\n";
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exit;
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}
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my $inFile = $ARGV[0];
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my $outName = $ARGV[1];
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my $outputFile = $ARGV[2];
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# open our output file, "+>" creates and/or truncates
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open OUT_FILE, "+>", $outputFile or die $!;
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print OUT_FILE "/* $outputFile */\n\n";
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print OUT_FILE "static const unsigned char $outName\[] =\n";
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print OUT_FILE "{\n";
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file_to_hex($inFile);
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print OUT_FILE "};\n";
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print OUT_FILE "static const int sizeof_$outName = sizeof($outName);\n\n";
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# close file
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close OUT_FILE or die $!;
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# print file as hex, comma-separated, as needed by C buffer
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sub file_to_hex {
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my $fileName = $_[0];
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open my $fp, "<", $fileName or die $!;
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binmode($fp);
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my $fileLen = -s $fileName;
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my $byte;
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for (my $i = 0, my $j = 1; $i < $fileLen; $i++, $j++)
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{
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if ($j == 1) {
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print OUT_FILE "\t";
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}
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read($fp, $byte, 1) or die "Error reading $fileName";
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my $output = sprintf("0x%02X", ord($byte));
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print OUT_FILE $output;
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if ($i != ($fileLen - 1)) {
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print OUT_FILE ", ";
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}
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if ($j == 10) {
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$j = 0;
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print OUT_FILE "\n";
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}
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}
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print OUT_FILE "\n";
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close($fp);
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}
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