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Utilities+LibArchive: Don't follow symlinks

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This commit is contained in:
Peter Elliott 2022-10-24 22:17:09 -06:00 • committed by Linus Groh
parent 415eb17490
commit 83e62e8c4f
3 changed files with 37 additions and 11 deletions
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17
Userland/Libraries/LibArchive/TarStream.cpp
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@ -165,6 +165,23 @@ void TarOutputStream::add_file(String const& path, mode_t mode, ReadonlyBytes by
VERIFY(m_stream.write_or_error(ReadonlyBytes { &padding, block_size - (n_written % block_size) }));
}
void TarOutputStream::add_link(String const& path, mode_t mode, StringView link_name)
{
VERIFY(!m_finished);
TarFileHeader header {};
header.set_size(0);
header.set_filename_and_prefix(path);
header.set_type_flag(TarFileType::SymLink);
header.set_mode(mode);
header.set_magic(gnu_magic);
header.set_version(gnu_version);
header.set_link_name(link_name);
header.calculate_checksum();
VERIFY(m_stream.write_or_error(Bytes { &header, sizeof(header) }));
u8 padding[block_size] = { 0 };
VERIFY(m_stream.write_or_error(Bytes { &padding, block_size - sizeof(header) }));
}
void TarOutputStream::finish()
{
VERIFY(!m_finished);