78 lines
1.6 KiB
Perl
78 lines
1.6 KiB
Perl
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#!/usr/bin/perl
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# ips.pl
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# version 0.01
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#
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# This is a quick hack to apply IPS patches. It is distributed under
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# the terms of the GNU General Public License.
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if (@ARGV != 1)
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{
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print "manger"
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}
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open PAT, "$ARGV[0]" or die "Can't open $ARGV[1]";
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read PAT, $data, 5;
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die "Bad magic bytes in $ARGV[1]" if $data ne "PATCH";
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printf("'%s': {", $ARGV[0]);
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my $first = 1;
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while(1)
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{
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read PAT, $data, 3 or die "Read error";
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if ($data eq "EOF")
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{
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printf("},\n");
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exit;
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}
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if($first == 1) {
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$first = 2;
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} else {
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printf(",\n");
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}
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# This is ugly, but unpack doesn't have anything that's
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# very helpful for THREE-byte numbers.
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$address = ord(substr($data,0,1))*256*256 +
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ord(substr($data,1,1))*256 +
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ord(substr($data,2,1));
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read PAT, $data, 2 or die "Read error";
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$length = ord(substr($data,0,1))*256 + ord(substr($data,1,1));
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if ($length)
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{
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read(PAT, $data, $length) == $length or die "Read error";
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my @chars = split("", $data);
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printf ("0x%lX: [", $address);
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for(my $i=0; $i < $length; $i++) {
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printf ("0x%lX", ord($chars[$i]));
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if($i != $length - 1) {
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printf(",");
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}
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if(($i % 38) == 0 && $i != 0) {
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printf("\n");
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}
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}
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printf ("]");
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}
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else # RLE mode
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{
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read PAT, $data, 2 or die "Read error";
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$length = ord(substr($data,0,1))*256 + ord(substr($data,1,1));
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read PAT, $byte, 1 or die "Read error";
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printf ("0x%lX: [", $address);
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for(my $i=0; $i < $length; $i++) {
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printf ("0x%lX", ord($byte));
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if($i != $length - 1) {
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printf(",");
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}
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if(($i % 38) == 0 && $i != 0) {
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printf("\n");
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}
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}
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printf ("]");
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}
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}
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