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root |
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#!/opt/bin/perl |
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use Compress::LZF; |
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my $verbose = 1; |
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my $exe_id = shift; |
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my $exe_ver = shift; |
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my $dir = shift; |
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my $size; |
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my $max; |
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sub ent { |
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my ($type, $flags, $name, $data) = @_; |
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warn "add record type $type, path $name\n" if $verbose >= 2; |
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my $ent = pack "CCnN Z* a*", |
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$type, |
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$flags, |
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(length $name), |
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(length $data), |
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$name, |
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$data; |
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print $ent; |
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$size += length $ent; |
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} |
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sub scandir { |
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my ($path, $pfx) = @_; |
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$pfx =~ s%^/%%; |
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opendir my $fh, $path |
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or die "$path: $!"; |
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for my $file (sort readdir $fh) { |
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next if $file eq "." || $file eq ".."; |
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lstat "$path/$file" |
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or die "$path/$file: $!"; |
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if (-d _) { |
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ent 4, 0, "$pfx$file"; |
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&scandir ("$path/$file", "$pfx$file/"); |
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} elsif (-f _) { |
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my $len = -s _; |
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$max = $len if $max < $len; |
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open my $fh2, "<", "$path/$file" |
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or die "$path/$file: $!"; |
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$len == sysread $fh2, my $data, $len |
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or die "$path/$file: read error"; |
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my $flags = (-x _) ? 0x10 : 0; |
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my $comp = Compress::LZF::compress $data; |
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$comp =~ s/^(?:[\x00-\x7f]|[\x80-\xff]+)//; # remove length prefix |
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if ($len > 1 + length $comp) { |
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$flags |= 0x01; |
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$data = $comp; |
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} |
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ent 5, $flags, "$pfx$file", $data; |
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} else { |
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warn "$path/$file: unsupported filetype, skipping.\n"; |
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} |
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} |
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} |
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ent 1, 0, $exe_id, "$exe_ver\x00"; |
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shift, ent 2, 0, $1, "$2\x00" |
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while $ARGV[0] =~ /^([^=]+)=(.*)$/s; |
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ent 3, 0, shift |
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while @ARGV; |
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scandir $dir, ""; |
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ent 0, 0; |
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print pack "NN a12", |
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$max, |
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$size + 20, # sizeof this pack, sorry... |
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"SCHMORPPACK0"; |
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printf STDERR "%d bytes written, biggest single file is %d bytes.\n", $size, $max |
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if $verbose; |
