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char *extract_header = "#!/usr/bin/perl\n"
"#use strict;\n"
"use IO::Handle;\n"
"\n"
"my $debug=0;\n"
"\n"
"sub verify ($$)\n"
"{\n"
" my ($filename, $hash) = @_;\n"
" my ($testhash);\n"
"\n"
" if (system(\"which md5sum > /dev/null 2>&1\")) {\n"
" die \"This firmware requires the md5sum command - see http://www.gnu.org/software/coreutils/\\n\";\n"
" }\n"
"\n"
" open(CMD, \"md5sum \".$filename.\"|\");\n"
" $testhash = <CMD>;\n"
" $testhash =~ /([a-zA-Z0-9]*)/;\n"
" $testhash = $1;\n"
" close CMD;\n"
" die \"Hash of extracted file does not match (found $testhash, expected $hash!\\n\" if ($testhash ne $hash);\n"
"}\n"
"\n"
"sub get_hunk ($$)\n"
"{\n"
" my ($offset, $length) = @_;\n"
" my ($chunklength, $buf, $rcount, $out);\n"
"\n"
" sysseek(INFILE, $offset, SEEK_SET);\n"
" while ($length > 0) {\n"
" # Calc chunk size\n"
" $chunklength = 2048;\n"
" $chunklength = $length if ($chunklength > $length);\n"
"\n"
" $rcount = sysread(INFILE, $buf, $chunklength);\n"
" die \"Ran out of data\\n\" if ($rcount != $chunklength);\n"
" $out .= $buf;\n"
" $length -= $rcount;\n"
" }\n"
" return $out;\n"
"}\n"
"\n"
"sub write_le16($)\n"
"{\n"
" my $val = shift;\n"
" my $msb = ($val >> 8) &0xff;\n"
" my $lsb = $val & 0xff;\n"
"\n"
" syswrite(OUTFILE, chr($lsb).chr($msb));\n"
"}\n"
"\n"
"sub write_le32($)\n"
"{\n"
" my $val = shift;\n"
" my $l3 = ($val >> 24) & 0xff;\n"
" my $l2 = ($val >> 16) & 0xff;\n"
" my $l1 = ($val >> 8) & 0xff;\n"
" my $l0 = $val & 0xff;\n"
"\n"
" syswrite(OUTFILE, chr($l0).chr($l1).chr($l2).chr($l3));\n"
"}\n"
"\n"
"sub write_le64($$)\n"
"{\n"
" my $msb_val = shift;\n"
" my $lsb_val = shift;\n"
" my $l7 = ($msb_val >> 24) & 0xff;\n"
" my $l6 = ($msb_val >> 16) & 0xff;\n"
" my $l5 = ($msb_val >> 8) & 0xff;\n"
" my $l4 = $msb_val & 0xff;\n\n"
" my $l3 = ($lsb_val >> 24) & 0xff;\n"
" my $l2 = ($lsb_val >> 16) & 0xff;\n"
" my $l1 = ($lsb_val >> 8) & 0xff;\n"
" my $l0 = $lsb_val & 0xff;\n"
"\n"
" syswrite(OUTFILE,\n"
" chr($l0).chr($l1).chr($l2).chr($l3).\n"
" chr($l4).chr($l5).chr($l6).chr($l7));\n"
"}\n"
"\n"
"sub write_hunk($$)\n"
"{\n"
" my ($offset, $length) = @_;\n"
" my $out = get_hunk($offset, $length);\n"
"\n"
" printf \"(len %d) \",$length if ($debug);\n"
"\n"
" for (my $i=0;$i<$length;$i++) {\n"
" printf \"%02x \",ord(substr($out,$i,1)) if ($debug);\n"
" }\n"
" printf \"\\n\" if ($debug);\n"
"\n"
" syswrite(OUTFILE, $out);\n"
"}\n"
"\n"
"sub write_hunk_fix_endian($$)\n"
"{\n"
" my ($offset, $length) = @_;\n"
" my $out = get_hunk($offset, $length);\n"
"\n"
" printf \"(len_fix %d) \",$length if ($debug);\n"
"\n"
" for (my $i=0;$i<$length;$i++) {\n"
" printf \"%02x \",ord(substr($out,$i,1)) if ($debug);\n"
" }\n"
" printf \"\\n\" if ($debug);\n"
"\n"
" $i=0;\n"
" while ($i<$length) {\n"
" my $size = ord(substr($out,$i,1))*256+ord(substr($out,$i+1,1));\n"
" syswrite(OUTFILE, substr($out,$i+1,1));\n"
" syswrite(OUTFILE, substr($out,$i,1));\n"
" $i+=2;\n"
" if ($size>0 && $size <0x8000) {\n"
" for (my $j=0;$j<$size;$j++) {\n"
" syswrite(OUTFILE, substr($out,$j+$i,1));\n"
" }\n"
" $i+=$size;\n"
" }\n"
" }\n"
"}\n"
"\n"
"sub main_firmware($$$$)\n"
"{\n"
" my $out;\n"
" my $j=0;\n"
" my $outfile = shift;\n"
" my $name = shift;\n"
" my $version = shift;\n"
" my $nr_desc = shift;\n"
"\n"
" for ($j = length($name); $j <32; $j++) {\n"
" $name = $name.chr(0);\n"
"}\n\n"
" open OUTFILE, \">$outfile\";\n"
" syswrite(OUTFILE, $name);\n"
" write_le16($version);\n"
" write_le16($nr_desc);\n";
char *write_hunk = "\twrite_hunk(%d, %d);\n";
char *write_hunk_fix_endian = "\twrite_hunk_fix_endian(%d, %d);\n";
// Parameters: file windows filename, hash, outfile, version, name
char *end_extract = "}\n\nsub extract_firmware {\n"
" my $sourcefile = \"%s\";\n"
" my $hash = \"%s\";\n"
" my $outfile = \"%s\";\n"
" my $name = \"%s\";\n"
" my $version = %d;\n"
" my $nr_desc = %d;\n"
" my $out;\n"
"\n"
" verify($sourcefile, $hash);\n"
"\n"
" open INFILE, \"<$sourcefile\";\n"
" main_firmware($outfile, $name, $version, $nr_desc);\n"
" close INFILE;\n"
"}\n"
"\n"
"extract_firmware;\n"
"printf \"Firmwares generated.\\n\";\n";
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