69 lines
1.5 KiB
Perl
Executable File
69 lines
1.5 KiB
Perl
Executable File
#!/usr/bin/perl
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# SPDX-License-Identifier: MIT
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#
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# extract_d3hog - extract Descent3 HOG files
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# written by Jan Engelhardt, 2003-2008
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use Getopt::Long;
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use strict;
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do (($0 =~ m{^(.*)/})[0] || ".")."/shared.pm" ||
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die "Could not load shared.pm: $!\n";
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my $ex_out_dir = ".";
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my $ex_archive_file = "-";
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my $ex_auto_lower = 0;
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my $ex_verbose = 0;
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Getopt::Long::Configure(qw(bundling));
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GetOptions(
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"C=s" => \$ex_out_dir,
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"L" => \$ex_auto_lower,
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"f=s" => \$ex_archive_file,
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"v" => \$ex_verbose,
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);
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&main();
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sub main ()
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{
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local(*IN, *OUT);
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open(IN, "< $ex_archive_file") ||
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die "Could not open $ex_archive_file: $!\n";
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binmode IN;
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if (&getcf(\*IN, 4) ne "HOG2") {
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die "Not a HOG2 file\n";
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}
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my $num_entries = unpack("V", &getcf(\*IN, 4));
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my $offset = unpack("V", &getcf(\*IN, 4));
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&getcf(\*IN, 56); # 0xff
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if ($ex_verbose) {
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print STDERR "$num_entries files in archive\n";
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}
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for (my $i = 0; $i < $num_entries; ++$i) {
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# 48 long, 36 name, 4 length, 4 unknown
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my $file_name = unpack("Z*", &getcf(\*IN, 40));
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my $file_size = unpack("V", &getcf(\*IN, 4));
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my $time_stamp = unpack("V", &getcf(\*IN, 4));
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if ($ex_auto_lower && $file_name !~ /[a-z]/) {
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$file_name =~ tr/A-Z/a-z/;
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}
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if ($ex_verbose) {
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print "\@$offset: $file_name ($file_size bytes)\n";
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}
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$offset += $file_size;
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my $abs_file = "$ex_out_dir/$file_name";
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&mkdir_p_stripbase($abs_file);
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open(OUT, "> $abs_file") ||
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warn "Could not write to $abs_file: $!\n";
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binmode OUT;
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&transfer(\*OUT, \*IN, $file_size, $offset);
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close OUT;
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}
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}
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