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Added preliminary unpacking support.

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committer: mfx <mfx> 978638046 +0000
This commit is contained in:
Markus F.X.J. Oberhumer 2001-01-04 19:54:06 +00:00
parent 266d992017
commit 38ab492030
1 changed files with 22 additions and 2 deletions
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24
src/p_vmlinz.cpp
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@ -411,14 +411,34 @@ int PackVmlinuzI386::canUnpack()
}
void PackVmlinuzI386::unpack(OutputFile *)
void PackVmlinuzI386::unpack(OutputFile *fo)
{
// no uncompression support for this format, so that
// it is possible to remove the original deflate code (>10KB)
// FIXME: but we could write the uncompressed "vmlinux" image
throwCantUnpack("build a new kernel instead :-)");
ibuf.alloc(ph.c_len);
obuf.allocForUncompression(ph.u_len);
fi->seek(setup_size + ph.buf_offset + ph.getPackHeaderSize(), SEEK_SET);
fi->readx(ibuf, ph.c_len);
// decompress
decompress(ibuf, obuf);
// unfilter
Filter ft(ph.level);
ft.init(ph.filter, kernel_entry);
ft.cto = (unsigned char) ph.filter_cto;
ft.unfilter(obuf, ph.u_len);
// write decompressed file
if (fo)
{
throwCantUnpack("build a new kernel instead :-)");
//fo->write(obuf, ph.u_len);
}
}