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src/catar/encoder.rs: fix symlinks

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This commit is contained in:
Dietmar Maurer 2018-12-28 14:51:43 +01:00
parent 7ebb173352
commit d05f93215e
1 changed files with 5 additions and 2 deletions
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7
src/catar/encoder.rs
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@ -187,11 +187,14 @@ impl <W: Write> CaTarEncoder<W> {
let mut buffer = [0u8; libc::PATH_MAX as usize];
let res = filename.with_nix_path(|cstr| {
unsafe { libc::readlink(cstr.as_ptr(), buffer.as_mut_ptr() as *mut libc::c_char, buffer.len()) }
unsafe { libc::readlinkat(rawfd, cstr.as_ptr(), buffer.as_mut_ptr() as *mut libc::c_char, buffer.len()-1) }
})?;
match Errno::result(res) {
Ok(len) => self.encode_symlink(&buffer[..(len as usize)], &stat)?,
Ok(len) => {
buffer[len as usize] = 0u8; // add Nul byte
self.encode_symlink(&buffer[..((len+1) as usize)], &stat)?
}
Err(nix::Error::Sys(Errno::ENOENT)) => self.report_vanished_file(&self.current_path)?,
Err(err) => bail!("readlink {:?} failed - {}", self.current_path, err),
}