tarfs/tar-0.4.41/tests/all.rs
2024-06-13 17:04:34 -05:00

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extern crate filetime;
extern crate tar;
extern crate tempfile;
#[cfg(all(unix, feature = "xattr"))]
extern crate xattr;
use std::fs::{self, File};
use std::io::prelude::*;
use std::io::{self, Cursor};
use std::iter::repeat;
use std::path::{Path, PathBuf};
use filetime::FileTime;
use tar::{Archive, Builder, Entries, EntryType, Header, HeaderMode};
use tempfile::{Builder as TempBuilder, TempDir};
macro_rules! t {
($e:expr) => {
match $e {
Ok(v) => v,
Err(e) => panic!("{} returned {}", stringify!($e), e),
}
};
}
macro_rules! tar {
($e:expr) => {
&include_bytes!(concat!("archives/", $e))[..]
};
}
mod header;
/// test that we can concatenate the simple.tar archive and extract the same entries twice when we
/// use the ignore_zeros option.
#[test]
fn simple_concat() {
let bytes = tar!("simple.tar");
let mut archive_bytes = Vec::new();
archive_bytes.extend(bytes);
let original_names: Vec<String> = decode_names(&mut Archive::new(Cursor::new(&archive_bytes)));
let expected: Vec<&str> = original_names.iter().map(|n| n.as_str()).collect();
// concat two archives (with null in-between);
archive_bytes.extend(bytes);
// test now that when we read the archive, it stops processing at the first zero header.
let actual = decode_names(&mut Archive::new(Cursor::new(&archive_bytes)));
assert_eq!(expected, actual);
// extend expected by itself.
let expected: Vec<&str> = {
let mut o = Vec::new();
o.extend(&expected);
o.extend(&expected);
o
};
let mut ar = Archive::new(Cursor::new(&archive_bytes));
ar.set_ignore_zeros(true);
let actual = decode_names(&mut ar);
assert_eq!(expected, actual);
fn decode_names<R>(ar: &mut Archive<R>) -> Vec<String>
where
R: Read,
{
let mut names = Vec::new();
for entry in t!(ar.entries()) {
let e = t!(entry);
names.push(t!(::std::str::from_utf8(&e.path_bytes())).to_string());
}
names
}
}
#[test]
fn header_impls() {
let mut ar = Archive::new(Cursor::new(tar!("simple.tar")));
let hn = Header::new_old();
let hnb = hn.as_bytes();
for file in t!(ar.entries()) {
let file = t!(file);
let h1 = file.header();
let h1b = h1.as_bytes();
let h2 = h1.clone();
let h2b = h2.as_bytes();
assert!(h1b[..] == h2b[..] && h2b[..] != hnb[..])
}
}
#[test]
fn header_impls_missing_last_header() {
let mut ar = Archive::new(Cursor::new(tar!("simple_missing_last_header.tar")));
let hn = Header::new_old();
let hnb = hn.as_bytes();
for file in t!(ar.entries()) {
let file = t!(file);
let h1 = file.header();
let h1b = h1.as_bytes();
let h2 = h1.clone();
let h2b = h2.as_bytes();
assert!(h1b[..] == h2b[..] && h2b[..] != hnb[..])
}
}
#[test]
fn reading_files() {
let rdr = Cursor::new(tar!("reading_files.tar"));
let mut ar = Archive::new(rdr);
let mut entries = t!(ar.entries());
let mut a = t!(entries.next().unwrap());
assert_eq!(&*a.header().path_bytes(), b"a");
let mut s = String::new();
t!(a.read_to_string(&mut s));
assert_eq!(s, "a\na\na\na\na\na\na\na\na\na\na\n");
let mut b = t!(entries.next().unwrap());
assert_eq!(&*b.header().path_bytes(), b"b");
s.truncate(0);
t!(b.read_to_string(&mut s));
assert_eq!(s, "b\nb\nb\nb\nb\nb\nb\nb\nb\nb\nb\n");
assert!(entries.next().is_none());
}
#[test]
fn writing_files() {
let mut ar = Builder::new(Vec::new());
let td = t!(TempBuilder::new().prefix("tar-rs").tempdir());
let path = td.path().join("test");
t!(t!(File::create(&path)).write_all(b"test"));
t!(ar.append_file("test2", &mut t!(File::open(&path))));
let data = t!(ar.into_inner());
let mut ar = Archive::new(Cursor::new(data));
let mut entries = t!(ar.entries());
let mut f = t!(entries.next().unwrap());
assert_eq!(&*f.header().path_bytes(), b"test2");
assert_eq!(f.header().size().unwrap(), 4);
let mut s = String::new();
t!(f.read_to_string(&mut s));
assert_eq!(s, "test");
assert!(entries.next().is_none());
}
#[test]
fn large_filename() {
let mut ar = Builder::new(Vec::new());
let td = t!(TempBuilder::new().prefix("tar-rs").tempdir());
let path = td.path().join("test");
t!(t!(File::create(&path)).write_all(b"test"));
let filename = repeat("abcd/").take(50).collect::<String>();
let mut header = Header::new_ustar();
header.set_path(&filename).unwrap();
header.set_metadata(&t!(fs::metadata(&path)));
header.set_cksum();
t!(ar.append(&header, &b"test"[..]));
let too_long = repeat("abcd").take(200).collect::<String>();
t!(ar.append_file(&too_long, &mut t!(File::open(&path))));
t!(ar.append_data(&mut header, &too_long, &b"test"[..]));
let rd = Cursor::new(t!(ar.into_inner()));
let mut ar = Archive::new(rd);
let mut entries = t!(ar.entries());
// The short entry added with `append`
let mut f = entries.next().unwrap().unwrap();
assert_eq!(&*f.header().path_bytes(), filename.as_bytes());
assert_eq!(f.header().size().unwrap(), 4);
let mut s = String::new();
t!(f.read_to_string(&mut s));
assert_eq!(s, "test");
// The long entry added with `append_file`
let mut f = entries.next().unwrap().unwrap();
assert_eq!(&*f.path_bytes(), too_long.as_bytes());
assert_eq!(f.header().size().unwrap(), 4);
let mut s = String::new();
t!(f.read_to_string(&mut s));
assert_eq!(s, "test");
// The long entry added with `append_data`
let mut f = entries.next().unwrap().unwrap();
assert!(f.header().path_bytes().len() < too_long.len());
assert_eq!(&*f.path_bytes(), too_long.as_bytes());
assert_eq!(f.header().size().unwrap(), 4);
let mut s = String::new();
t!(f.read_to_string(&mut s));
assert_eq!(s, "test");
assert!(entries.next().is_none());
}
fn reading_entries_common<R: Read>(mut entries: Entries<R>) {
let mut a = t!(entries.next().unwrap());
assert_eq!(&*a.header().path_bytes(), b"a");
let mut s = String::new();
t!(a.read_to_string(&mut s));
assert_eq!(s, "a\na\na\na\na\na\na\na\na\na\na\n");
s.truncate(0);
t!(a.read_to_string(&mut s));
assert_eq!(s, "");
let mut b = t!(entries.next().unwrap());
assert_eq!(&*b.header().path_bytes(), b"b");
s.truncate(0);
t!(b.read_to_string(&mut s));
assert_eq!(s, "b\nb\nb\nb\nb\nb\nb\nb\nb\nb\nb\n");
assert!(entries.next().is_none());
}
#[test]
fn reading_entries() {
let rdr = Cursor::new(tar!("reading_files.tar"));
let mut ar = Archive::new(rdr);
reading_entries_common(t!(ar.entries()));
}
#[test]
fn reading_entries_with_seek() {
let rdr = Cursor::new(tar!("reading_files.tar"));
let mut ar = Archive::new(rdr);
reading_entries_common(t!(ar.entries_with_seek()));
}
struct LoggingReader<R> {
inner: R,
read_bytes: u64,
}
impl<R> LoggingReader<R> {
fn new(reader: R) -> LoggingReader<R> {
LoggingReader {
inner: reader,
read_bytes: 0,
}
}
}
impl<T: Read> Read for LoggingReader<T> {
fn read(&mut self, buf: &mut [u8]) -> io::Result<usize> {
self.inner.read(buf).map(|i| {
self.read_bytes += i as u64;
i
})
}
}
impl<T: Seek> Seek for LoggingReader<T> {
fn seek(&mut self, pos: io::SeekFrom) -> io::Result<u64> {
self.inner.seek(pos)
}
}
#[test]
fn skipping_entries_with_seek() {
let mut reader = LoggingReader::new(Cursor::new(tar!("reading_files.tar")));
let mut ar_reader = Archive::new(&mut reader);
let files: Vec<_> = t!(ar_reader.entries())
.map(|entry| entry.unwrap().path().unwrap().to_path_buf())
.collect();
let mut seekable_reader = LoggingReader::new(Cursor::new(tar!("reading_files.tar")));
let mut ar_seekable_reader = Archive::new(&mut seekable_reader);
let files_seekable: Vec<_> = t!(ar_seekable_reader.entries_with_seek())
.map(|entry| entry.unwrap().path().unwrap().to_path_buf())
.collect();
assert!(files == files_seekable);
assert!(seekable_reader.read_bytes < reader.read_bytes);
}
fn check_dirtree(td: &TempDir) {
let dir_a = td.path().join("a");
let dir_b = td.path().join("a/b");
let file_c = td.path().join("a/c");
assert!(fs::metadata(&dir_a).map(|m| m.is_dir()).unwrap_or(false));
assert!(fs::metadata(&dir_b).map(|m| m.is_dir()).unwrap_or(false));
assert!(fs::metadata(&file_c).map(|m| m.is_file()).unwrap_or(false));
}
#[test]
fn extracting_directories() {
let td = t!(TempBuilder::new().prefix("tar-rs").tempdir());
let rdr = Cursor::new(tar!("directory.tar"));
let mut ar = Archive::new(rdr);
t!(ar.unpack(td.path()));
check_dirtree(&td);
}
#[test]
fn extracting_duplicate_file_fail() {
let td = t!(TempBuilder::new().prefix("tar-rs").tempdir());
let path_present = td.path().join("a");
t!(File::create(path_present));
let rdr = Cursor::new(tar!("reading_files.tar"));
let mut ar = Archive::new(rdr);
ar.set_overwrite(false);
if let Err(err) = ar.unpack(td.path()) {
if err.kind() == std::io::ErrorKind::AlreadyExists {
// as expected with overwrite false
return;
}
panic!("unexpected error: {:?}", err);
}
panic!(
"unpack() should have returned an error of kind {:?}, returned Ok",
std::io::ErrorKind::AlreadyExists
)
}
#[test]
fn extracting_duplicate_file_succeed() {
let td = t!(TempBuilder::new().prefix("tar-rs").tempdir());
let path_present = td.path().join("a");
t!(File::create(path_present));
let rdr = Cursor::new(tar!("reading_files.tar"));
let mut ar = Archive::new(rdr);
ar.set_overwrite(true);
t!(ar.unpack(td.path()));
}
#[test]
#[cfg(unix)]
fn extracting_duplicate_link_fail() {
let td = t!(TempBuilder::new().prefix("tar-rs").tempdir());
let path_present = td.path().join("lnk");
t!(std::os::unix::fs::symlink("file", path_present));
let rdr = Cursor::new(tar!("link.tar"));
let mut ar = Archive::new(rdr);
ar.set_overwrite(false);
if let Err(err) = ar.unpack(td.path()) {
if err.kind() == std::io::ErrorKind::AlreadyExists {
// as expected with overwrite false
return;
}
panic!("unexpected error: {:?}", err);
}
panic!(
"unpack() should have returned an error of kind {:?}, returned Ok",
std::io::ErrorKind::AlreadyExists
)
}
#[test]
#[cfg(unix)]
fn extracting_duplicate_link_succeed() {
let td = t!(TempBuilder::new().prefix("tar-rs").tempdir());
let path_present = td.path().join("lnk");
t!(std::os::unix::fs::symlink("file", path_present));
let rdr = Cursor::new(tar!("link.tar"));
let mut ar = Archive::new(rdr);
ar.set_overwrite(true);
t!(ar.unpack(td.path()));
}
#[test]
#[cfg(all(unix, feature = "xattr"))]
fn xattrs() {
// If /tmp is a tmpfs, xattr will fail
// The xattr crate's unit tests also use /var/tmp for this reason
let td = t!(TempBuilder::new().prefix("tar-rs").tempdir_in("/var/tmp"));
let rdr = Cursor::new(tar!("xattrs.tar"));
let mut ar = Archive::new(rdr);
ar.set_unpack_xattrs(true);
t!(ar.unpack(td.path()));
let val = xattr::get(td.path().join("a/b"), "user.pax.flags").unwrap();
assert_eq!(val.unwrap(), "epm".as_bytes());
}
#[test]
#[cfg(all(unix, feature = "xattr"))]
fn no_xattrs() {
// If /tmp is a tmpfs, xattr will fail
// The xattr crate's unit tests also use /var/tmp for this reason
let td = t!(TempBuilder::new().prefix("tar-rs").tempdir_in("/var/tmp"));
let rdr = Cursor::new(tar!("xattrs.tar"));
let mut ar = Archive::new(rdr);
ar.set_unpack_xattrs(false);
t!(ar.unpack(td.path()));
assert_eq!(
xattr::get(td.path().join("a/b"), "user.pax.flags").unwrap(),
None
);
}
#[test]
fn writing_and_extracting_directories() {
let td = t!(TempBuilder::new().prefix("tar-rs").tempdir());
let mut ar = Builder::new(Vec::new());
let tmppath = td.path().join("tmpfile");
t!(t!(File::create(&tmppath)).write_all(b"c"));
t!(ar.append_dir("a", "."));
t!(ar.append_dir("a/b", "."));
t!(ar.append_file("a/c", &mut t!(File::open(&tmppath))));
t!(ar.finish());
let rdr = Cursor::new(t!(ar.into_inner()));
let mut ar = Archive::new(rdr);
t!(ar.unpack(td.path()));
check_dirtree(&td);
}
#[test]
fn writing_directories_recursively() {
let td = t!(TempBuilder::new().prefix("tar-rs").tempdir());
let base_dir = td.path().join("base");
t!(fs::create_dir(&base_dir));
t!(t!(File::create(base_dir.join("file1"))).write_all(b"file1"));
let sub_dir = base_dir.join("sub");
t!(fs::create_dir(&sub_dir));
t!(t!(File::create(sub_dir.join("file2"))).write_all(b"file2"));
let mut ar = Builder::new(Vec::new());
t!(ar.append_dir_all("foobar", base_dir));
let data = t!(ar.into_inner());
let mut ar = Archive::new(Cursor::new(data));
t!(ar.unpack(td.path()));
let base_dir = td.path().join("foobar");
assert!(fs::metadata(&base_dir).map(|m| m.is_dir()).unwrap_or(false));
let file1_path = base_dir.join("file1");
assert!(fs::metadata(&file1_path)
.map(|m| m.is_file())
.unwrap_or(false));
let sub_dir = base_dir.join("sub");
assert!(fs::metadata(&sub_dir).map(|m| m.is_dir()).unwrap_or(false));
let file2_path = sub_dir.join("file2");
assert!(fs::metadata(&file2_path)
.map(|m| m.is_file())
.unwrap_or(false));
}
#[test]
fn append_dir_all_blank_dest() {
let td = t!(TempBuilder::new().prefix("tar-rs").tempdir());
let base_dir = td.path().join("base");
t!(fs::create_dir(&base_dir));
t!(t!(File::create(base_dir.join("file1"))).write_all(b"file1"));
let sub_dir = base_dir.join("sub");
t!(fs::create_dir(&sub_dir));
t!(t!(File::create(sub_dir.join("file2"))).write_all(b"file2"));
let mut ar = Builder::new(Vec::new());
t!(ar.append_dir_all("", base_dir));
let data = t!(ar.into_inner());
let mut ar = Archive::new(Cursor::new(data));
t!(ar.unpack(td.path()));
let base_dir = td.path();
assert!(fs::metadata(&base_dir).map(|m| m.is_dir()).unwrap_or(false));
let file1_path = base_dir.join("file1");
assert!(fs::metadata(&file1_path)
.map(|m| m.is_file())
.unwrap_or(false));
let sub_dir = base_dir.join("sub");
assert!(fs::metadata(&sub_dir).map(|m| m.is_dir()).unwrap_or(false));
let file2_path = sub_dir.join("file2");
assert!(fs::metadata(&file2_path)
.map(|m| m.is_file())
.unwrap_or(false));
}
#[test]
fn append_dir_all_does_not_work_on_non_directory() {
let td = t!(TempBuilder::new().prefix("tar-rs").tempdir());
let path = td.path().join("test");
t!(t!(File::create(&path)).write_all(b"test"));
let mut ar = Builder::new(Vec::new());
let result = ar.append_dir_all("test", path);
assert!(result.is_err());
}
#[test]
fn extracting_duplicate_dirs() {
let td = t!(TempBuilder::new().prefix("tar-rs").tempdir());
let rdr = Cursor::new(tar!("duplicate_dirs.tar"));
let mut ar = Archive::new(rdr);
t!(ar.unpack(td.path()));
let some_dir = td.path().join("some_dir");
assert!(fs::metadata(&some_dir).map(|m| m.is_dir()).unwrap_or(false));
}
#[test]
fn unpack_old_style_bsd_dir() {
let td = t!(TempBuilder::new().prefix("tar-rs").tempdir());
let mut ar = Builder::new(Vec::new());
let mut header = Header::new_old();
header.set_entry_type(EntryType::Regular);
t!(header.set_path("testdir/"));
header.set_size(0);
header.set_cksum();
t!(ar.append(&header, &mut io::empty()));
// Extracting
let rdr = Cursor::new(t!(ar.into_inner()));
let mut ar = Archive::new(rdr);
t!(ar.unpack(td.path()));
// Iterating
let rdr = Cursor::new(ar.into_inner().into_inner());
let mut ar = Archive::new(rdr);
assert!(t!(ar.entries()).all(|fr| fr.is_ok()));
assert!(td.path().join("testdir").is_dir());
}
#[test]
fn handling_incorrect_file_size() {
let td = t!(TempBuilder::new().prefix("tar-rs").tempdir());
let mut ar = Builder::new(Vec::new());
let path = td.path().join("tmpfile");
t!(File::create(&path));
let mut file = t!(File::open(&path));
let mut header = Header::new_old();
t!(header.set_path("somepath"));
header.set_metadata(&t!(file.metadata()));
header.set_size(2048); // past the end of file null blocks
header.set_cksum();
t!(ar.append(&header, &mut file));
// Extracting
let rdr = Cursor::new(t!(ar.into_inner()));
let mut ar = Archive::new(rdr);
assert!(ar.unpack(td.path()).is_err());
// Iterating
let rdr = Cursor::new(ar.into_inner().into_inner());
let mut ar = Archive::new(rdr);
assert!(t!(ar.entries()).any(|fr| fr.is_err()));
}
#[test]
fn extracting_malicious_tarball() {
let td = t!(TempBuilder::new().prefix("tar-rs").tempdir());
let mut evil_tar = Vec::new();
{
let mut a = Builder::new(&mut evil_tar);
let mut append = |path: &str| {
let mut header = Header::new_gnu();
assert!(header.set_path(path).is_err(), "was ok: {:?}", path);
{
let h = header.as_gnu_mut().unwrap();
for (a, b) in h.name.iter_mut().zip(path.as_bytes()) {
*a = *b;
}
}
header.set_size(1);
header.set_cksum();
t!(a.append(&header, io::repeat(1).take(1)));
};
append("/tmp/abs_evil.txt");
// std parse `//` as UNC path, see rust-lang/rust#100833
append(
#[cfg(not(windows))]
"//tmp/abs_evil2.txt",
#[cfg(windows)]
"C://tmp/abs_evil2.txt",
);
append("///tmp/abs_evil3.txt");
append("/./tmp/abs_evil4.txt");
append(
#[cfg(not(windows))]
"//./tmp/abs_evil5.txt",
#[cfg(windows)]
"C://./tmp/abs_evil5.txt",
);
append("///./tmp/abs_evil6.txt");
append("/../tmp/rel_evil.txt");
append("../rel_evil2.txt");
append("./../rel_evil3.txt");
append("some/../../rel_evil4.txt");
append("");
append("././//./..");
append("..");
append("/////////..");
append("/////////");
}
let mut ar = Archive::new(&evil_tar[..]);
t!(ar.unpack(td.path()));
assert!(fs::metadata("/tmp/abs_evil.txt").is_err());
assert!(fs::metadata("/tmp/abs_evil.txt2").is_err());
assert!(fs::metadata("/tmp/abs_evil.txt3").is_err());
assert!(fs::metadata("/tmp/abs_evil.txt4").is_err());
assert!(fs::metadata("/tmp/abs_evil.txt5").is_err());
assert!(fs::metadata("/tmp/abs_evil.txt6").is_err());
assert!(fs::metadata("/tmp/rel_evil.txt").is_err());
assert!(fs::metadata("/tmp/rel_evil.txt").is_err());
assert!(fs::metadata(td.path().join("../tmp/rel_evil.txt")).is_err());
assert!(fs::metadata(td.path().join("../rel_evil2.txt")).is_err());
assert!(fs::metadata(td.path().join("../rel_evil3.txt")).is_err());
assert!(fs::metadata(td.path().join("../rel_evil4.txt")).is_err());
// The `some` subdirectory should not be created because the only
// filename that references this has '..'.
assert!(fs::metadata(td.path().join("some")).is_err());
// The `tmp` subdirectory should be created and within this
// subdirectory, there should be files named `abs_evil.txt` through
// `abs_evil6.txt`.
assert!(fs::metadata(td.path().join("tmp"))
.map(|m| m.is_dir())
.unwrap_or(false));
assert!(fs::metadata(td.path().join("tmp/abs_evil.txt"))
.map(|m| m.is_file())
.unwrap_or(false));
assert!(fs::metadata(td.path().join("tmp/abs_evil2.txt"))
.map(|m| m.is_file())
.unwrap_or(false));
assert!(fs::metadata(td.path().join("tmp/abs_evil3.txt"))
.map(|m| m.is_file())
.unwrap_or(false));
assert!(fs::metadata(td.path().join("tmp/abs_evil4.txt"))
.map(|m| m.is_file())
.unwrap_or(false));
assert!(fs::metadata(td.path().join("tmp/abs_evil5.txt"))
.map(|m| m.is_file())
.unwrap_or(false));
assert!(fs::metadata(td.path().join("tmp/abs_evil6.txt"))
.map(|m| m.is_file())
.unwrap_or(false));
}
#[test]
fn octal_spaces() {
let rdr = Cursor::new(tar!("spaces.tar"));
let mut ar = Archive::new(rdr);
let entry = ar.entries().unwrap().next().unwrap().unwrap();
assert_eq!(entry.header().mode().unwrap() & 0o777, 0o777);
assert_eq!(entry.header().uid().unwrap(), 0);
assert_eq!(entry.header().gid().unwrap(), 0);
assert_eq!(entry.header().size().unwrap(), 2);
assert_eq!(entry.header().mtime().unwrap(), 0o12440016664);
assert_eq!(entry.header().cksum().unwrap(), 0o4253);
}
#[test]
fn extracting_malformed_tar_null_blocks() {
let td = t!(TempBuilder::new().prefix("tar-rs").tempdir());
let mut ar = Builder::new(Vec::new());
let path1 = td.path().join("tmpfile1");
let path2 = td.path().join("tmpfile2");
t!(File::create(&path1));
t!(File::create(&path2));
t!(ar.append_file("tmpfile1", &mut t!(File::open(&path1))));
let mut data = t!(ar.into_inner());
let amt = data.len();
data.truncate(amt - 512);
let mut ar = Builder::new(data);
t!(ar.append_file("tmpfile2", &mut t!(File::open(&path2))));
t!(ar.finish());
let data = t!(ar.into_inner());
let mut ar = Archive::new(&data[..]);
assert!(ar.unpack(td.path()).is_ok());
}
#[test]
fn empty_filename() {
let td = t!(TempBuilder::new().prefix("tar-rs").tempdir());
let rdr = Cursor::new(tar!("empty_filename.tar"));
let mut ar = Archive::new(rdr);
assert!(ar.unpack(td.path()).is_ok());
}
#[test]
fn file_times() {
let td = t!(TempBuilder::new().prefix("tar-rs").tempdir());
let rdr = Cursor::new(tar!("file_times.tar"));
let mut ar = Archive::new(rdr);
t!(ar.unpack(td.path()));
let meta = fs::metadata(td.path().join("a")).unwrap();
let mtime = FileTime::from_last_modification_time(&meta);
let atime = FileTime::from_last_access_time(&meta);
assert_eq!(mtime.unix_seconds(), 1000000000);
assert_eq!(mtime.nanoseconds(), 0);
assert_eq!(atime.unix_seconds(), 1000000000);
assert_eq!(atime.nanoseconds(), 0);
}
#[test]
fn zero_file_times() {
let td = t!(TempBuilder::new().prefix("tar-rs").tempdir());
let mut ar = Builder::new(Vec::new());
ar.mode(HeaderMode::Deterministic);
let path = td.path().join("tmpfile");
t!(File::create(&path));
t!(ar.append_path_with_name(&path, "a"));
let data = t!(ar.into_inner());
let mut ar = Archive::new(&data[..]);
assert!(ar.unpack(td.path()).is_ok());
let meta = fs::metadata(td.path().join("a")).unwrap();
let mtime = FileTime::from_last_modification_time(&meta);
let atime = FileTime::from_last_access_time(&meta);
assert!(mtime.unix_seconds() != 0);
assert!(atime.unix_seconds() != 0);
}
#[test]
fn backslash_treated_well() {
// Insert a file into an archive with a backslash
let td = t!(TempBuilder::new().prefix("tar-rs").tempdir());
let mut ar = Builder::new(Vec::<u8>::new());
t!(ar.append_dir("foo\\bar", td.path()));
let mut ar = Archive::new(Cursor::new(t!(ar.into_inner())));
let f = t!(t!(ar.entries()).next().unwrap());
if cfg!(unix) {
assert_eq!(t!(f.header().path()).to_str(), Some("foo\\bar"));
} else {
assert_eq!(t!(f.header().path()).to_str(), Some("foo/bar"));
}
// Unpack an archive with a backslash in the name
let mut ar = Builder::new(Vec::<u8>::new());
let mut header = Header::new_gnu();
header.set_metadata(&t!(fs::metadata(td.path())));
header.set_size(0);
for (a, b) in header.as_old_mut().name.iter_mut().zip(b"foo\\bar\x00") {
*a = *b;
}
header.set_cksum();
t!(ar.append(&header, &mut io::empty()));
let data = t!(ar.into_inner());
let mut ar = Archive::new(&data[..]);
let f = t!(t!(ar.entries()).next().unwrap());
assert_eq!(t!(f.header().path()).to_str(), Some("foo\\bar"));
let mut ar = Archive::new(&data[..]);
t!(ar.unpack(td.path()));
assert!(fs::metadata(td.path().join("foo\\bar")).is_ok());
}
#[test]
#[cfg(unix)]
fn set_mask() {
use ::std::os::unix::fs::PermissionsExt;
let mut ar = tar::Builder::new(Vec::new());
let mut header = tar::Header::new_gnu();
header.set_size(0);
header.set_entry_type(tar::EntryType::Regular);
t!(header.set_path("foo"));
header.set_mode(0o777);
header.set_cksum();
t!(ar.append(&header, &[][..]));
let mut header = tar::Header::new_gnu();
header.set_size(0);
header.set_entry_type(tar::EntryType::Regular);
t!(header.set_path("bar"));
header.set_mode(0o421);
header.set_cksum();
t!(ar.append(&header, &[][..]));
let td = t!(TempBuilder::new().prefix("tar-rs").tempdir());
let bytes = t!(ar.into_inner());
let mut ar = tar::Archive::new(&bytes[..]);
ar.set_mask(0o211);
t!(ar.unpack(td.path()));
let md = t!(fs::metadata(td.path().join("foo")));
assert_eq!(md.permissions().mode(), 0o100566);
let md = t!(fs::metadata(td.path().join("bar")));
assert_eq!(md.permissions().mode(), 0o100420);
}
#[cfg(unix)]
#[test]
fn nul_bytes_in_path() {
use std::ffi::OsStr;
use std::os::unix::prelude::*;
let nul_path = OsStr::from_bytes(b"foo\0");
let td = t!(TempBuilder::new().prefix("tar-rs").tempdir());
let mut ar = Builder::new(Vec::<u8>::new());
let err = ar.append_dir(nul_path, td.path()).unwrap_err();
assert!(err.to_string().contains("contains a nul byte"));
}
#[test]
fn links() {
let mut ar = Archive::new(Cursor::new(tar!("link.tar")));
let mut entries = t!(ar.entries());
let link = t!(entries.next().unwrap());
assert_eq!(
t!(link.header().link_name()).as_ref().map(|p| &**p),
Some(Path::new("file"))
);
let other = t!(entries.next().unwrap());
assert!(t!(other.header().link_name()).is_none());
}
#[test]
#[cfg(unix)] // making symlinks on windows is hard
fn unpack_links() {
let td = t!(TempBuilder::new().prefix("tar-rs").tempdir());
let mut ar = Archive::new(Cursor::new(tar!("link.tar")));
t!(ar.unpack(td.path()));
let md = t!(fs::symlink_metadata(td.path().join("lnk")));
assert!(md.file_type().is_symlink());
let mtime = FileTime::from_last_modification_time(&md);
assert_eq!(mtime.unix_seconds(), 1448291033);
assert_eq!(
&*t!(fs::read_link(td.path().join("lnk"))),
Path::new("file")
);
t!(File::open(td.path().join("lnk")));
}
#[test]
fn pax_size() {
let mut ar = Archive::new(tar!("pax_size.tar"));
let mut entries = t!(ar.entries());
let mut entry = t!(entries.next().unwrap());
let mut attributes = t!(entry.pax_extensions()).unwrap();
let _first = t!(attributes.next().unwrap());
let _second = t!(attributes.next().unwrap());
let _third = t!(attributes.next().unwrap());
let fourth = t!(attributes.next().unwrap());
assert!(attributes.next().is_none());
assert_eq!(fourth.key(), Ok("size"));
assert_eq!(fourth.value(), Ok("4"));
assert_eq!(entry.header().size().unwrap(), 0);
assert_eq!(entry.size(), 4);
}
#[test]
fn pax_simple() {
let mut ar = Archive::new(tar!("pax.tar"));
let mut entries = t!(ar.entries());
let mut first = t!(entries.next().unwrap());
let mut attributes = t!(first.pax_extensions()).unwrap();
let first = t!(attributes.next().unwrap());
let second = t!(attributes.next().unwrap());
let third = t!(attributes.next().unwrap());
assert!(attributes.next().is_none());
assert_eq!(first.key(), Ok("mtime"));
assert_eq!(first.value(), Ok("1453146164.953123768"));
assert_eq!(second.key(), Ok("atime"));
assert_eq!(second.value(), Ok("1453251915.24892486"));
assert_eq!(third.key(), Ok("ctime"));
assert_eq!(third.value(), Ok("1453146164.953123768"));
}
#[test]
fn pax_path() {
let mut ar = Archive::new(tar!("pax2.tar"));
let mut entries = t!(ar.entries());
let first = t!(entries.next().unwrap());
assert!(first.path().unwrap().ends_with("aaaaaaaaaaaaaaa"));
}
#[test]
fn pax_linkpath() {
let mut ar = Archive::new(tar!("pax2.tar"));
let mut links = t!(ar.entries()).skip(3).take(2);
let long_symlink = t!(links.next().unwrap());
let link_name = long_symlink.link_name().unwrap().unwrap();
assert!(link_name.to_str().unwrap().len() > 99);
assert!(link_name.ends_with("bbbbbbbbbbbbbbb"));
let long_hardlink = t!(links.next().unwrap());
let link_name = long_hardlink.link_name().unwrap().unwrap();
assert!(link_name.to_str().unwrap().len() > 99);
assert!(link_name.ends_with("ccccccccccccccc"));
}
#[test]
fn long_name_trailing_nul() {
let mut b = Builder::new(Vec::<u8>::new());
let mut h = Header::new_gnu();
t!(h.set_path("././@LongLink"));
h.set_size(4);
h.set_entry_type(EntryType::new(b'L'));
h.set_cksum();
t!(b.append(&h, "foo\0".as_bytes()));
let mut h = Header::new_gnu();
t!(h.set_path("bar"));
h.set_size(6);
h.set_entry_type(EntryType::file());
h.set_cksum();
t!(b.append(&h, "foobar".as_bytes()));
let contents = t!(b.into_inner());
let mut a = Archive::new(&contents[..]);
let e = t!(t!(a.entries()).next().unwrap());
assert_eq!(&*e.path_bytes(), b"foo");
}
#[test]
fn long_linkname_trailing_nul() {
let mut b = Builder::new(Vec::<u8>::new());
let mut h = Header::new_gnu();
t!(h.set_path("././@LongLink"));
h.set_size(4);
h.set_entry_type(EntryType::new(b'K'));
h.set_cksum();
t!(b.append(&h, "foo\0".as_bytes()));
let mut h = Header::new_gnu();
t!(h.set_path("bar"));
h.set_size(6);
h.set_entry_type(EntryType::file());
h.set_cksum();
t!(b.append(&h, "foobar".as_bytes()));
let contents = t!(b.into_inner());
let mut a = Archive::new(&contents[..]);
let e = t!(t!(a.entries()).next().unwrap());
assert_eq!(&*e.link_name_bytes().unwrap(), b"foo");
}
#[test]
fn long_linkname_gnu() {
for t in [tar::EntryType::Symlink, tar::EntryType::Link] {
let mut b = Builder::new(Vec::<u8>::new());
let mut h = Header::new_gnu();
h.set_entry_type(t);
h.set_size(0);
let path = "usr/lib/.build-id/05/159ed904e45ff5100f7acd3d3b99fa7e27e34f";
let target = "../../../../usr/lib64/qt5/plugins/wayland-graphics-integration-server/libqt-wayland-compositor-xcomposite-egl.so";
t!(b.append_link(&mut h, path, target));
let contents = t!(b.into_inner());
let mut a = Archive::new(&contents[..]);
let e = &t!(t!(a.entries()).next().unwrap());
assert_eq!(e.header().entry_type(), t);
assert_eq!(e.path().unwrap().to_str().unwrap(), path);
assert_eq!(e.link_name().unwrap().unwrap().to_str().unwrap(), target);
}
}
#[test]
fn linkname_literal() {
for t in [tar::EntryType::Symlink, tar::EntryType::Link] {
let mut b = Builder::new(Vec::<u8>::new());
let mut h = Header::new_gnu();
h.set_entry_type(t);
h.set_size(0);
let path = "usr/lib/systemd/systemd-sysv-install";
let target = "../../..//sbin/chkconfig";
h.set_link_name_literal(target).unwrap();
t!(b.append_data(&mut h, path, std::io::empty()));
let contents = t!(b.into_inner());
let mut a = Archive::new(&contents[..]);
let e = &t!(t!(a.entries()).next().unwrap());
assert_eq!(e.header().entry_type(), t);
assert_eq!(e.path().unwrap().to_str().unwrap(), path);
assert_eq!(e.link_name().unwrap().unwrap().to_str().unwrap(), target);
}
}
#[test]
fn encoded_long_name_has_trailing_nul() {
let td = t!(TempBuilder::new().prefix("tar-rs").tempdir());
let path = td.path().join("foo");
t!(t!(File::create(&path)).write_all(b"test"));
let mut b = Builder::new(Vec::<u8>::new());
let long = repeat("abcd").take(200).collect::<String>();
t!(b.append_file(&long, &mut t!(File::open(&path))));
let contents = t!(b.into_inner());
let mut a = Archive::new(&contents[..]);
let mut e = t!(t!(a.entries()).raw(true).next().unwrap());
let mut name = Vec::new();
t!(e.read_to_end(&mut name));
assert_eq!(name[name.len() - 1], 0);
let header_name = &e.header().as_gnu().unwrap().name;
assert!(header_name.starts_with(b"././@LongLink\x00"));
}
#[test]
fn reading_sparse() {
let rdr = Cursor::new(tar!("sparse.tar"));
let mut ar = Archive::new(rdr);
let mut entries = t!(ar.entries());
let mut a = t!(entries.next().unwrap());
let mut s = String::new();
assert_eq!(&*a.header().path_bytes(), b"sparse_begin.txt");
t!(a.read_to_string(&mut s));
assert_eq!(&s[..5], "test\n");
assert!(s[5..].chars().all(|x| x == '\u{0}'));
let mut a = t!(entries.next().unwrap());
let mut s = String::new();
assert_eq!(&*a.header().path_bytes(), b"sparse_end.txt");
t!(a.read_to_string(&mut s));
assert!(s[..s.len() - 9].chars().all(|x| x == '\u{0}'));
assert_eq!(&s[s.len() - 9..], "test_end\n");
let mut a = t!(entries.next().unwrap());
let mut s = String::new();
assert_eq!(&*a.header().path_bytes(), b"sparse_ext.txt");
t!(a.read_to_string(&mut s));
assert!(s[..0x1000].chars().all(|x| x == '\u{0}'));
assert_eq!(&s[0x1000..0x1000 + 5], "text\n");
assert!(s[0x1000 + 5..0x3000].chars().all(|x| x == '\u{0}'));
assert_eq!(&s[0x3000..0x3000 + 5], "text\n");
assert!(s[0x3000 + 5..0x5000].chars().all(|x| x == '\u{0}'));
assert_eq!(&s[0x5000..0x5000 + 5], "text\n");
assert!(s[0x5000 + 5..0x7000].chars().all(|x| x == '\u{0}'));
assert_eq!(&s[0x7000..0x7000 + 5], "text\n");
assert!(s[0x7000 + 5..0x9000].chars().all(|x| x == '\u{0}'));
assert_eq!(&s[0x9000..0x9000 + 5], "text\n");
assert!(s[0x9000 + 5..0xb000].chars().all(|x| x == '\u{0}'));
assert_eq!(&s[0xb000..0xb000 + 5], "text\n");
let mut a = t!(entries.next().unwrap());
let mut s = String::new();
assert_eq!(&*a.header().path_bytes(), b"sparse.txt");
t!(a.read_to_string(&mut s));
assert!(s[..0x1000].chars().all(|x| x == '\u{0}'));
assert_eq!(&s[0x1000..0x1000 + 6], "hello\n");
assert!(s[0x1000 + 6..0x2fa0].chars().all(|x| x == '\u{0}'));
assert_eq!(&s[0x2fa0..0x2fa0 + 6], "world\n");
assert!(s[0x2fa0 + 6..0x4000].chars().all(|x| x == '\u{0}'));
assert!(entries.next().is_none());
}
#[test]
fn extract_sparse() {
let rdr = Cursor::new(tar!("sparse.tar"));
let mut ar = Archive::new(rdr);
let td = t!(TempBuilder::new().prefix("tar-rs").tempdir());
t!(ar.unpack(td.path()));
let mut s = String::new();
t!(t!(File::open(td.path().join("sparse_begin.txt"))).read_to_string(&mut s));
assert_eq!(&s[..5], "test\n");
assert!(s[5..].chars().all(|x| x == '\u{0}'));
s.truncate(0);
t!(t!(File::open(td.path().join("sparse_end.txt"))).read_to_string(&mut s));
assert!(s[..s.len() - 9].chars().all(|x| x == '\u{0}'));
assert_eq!(&s[s.len() - 9..], "test_end\n");
s.truncate(0);
t!(t!(File::open(td.path().join("sparse_ext.txt"))).read_to_string(&mut s));
assert!(s[..0x1000].chars().all(|x| x == '\u{0}'));
assert_eq!(&s[0x1000..0x1000 + 5], "text\n");
assert!(s[0x1000 + 5..0x3000].chars().all(|x| x == '\u{0}'));
assert_eq!(&s[0x3000..0x3000 + 5], "text\n");
assert!(s[0x3000 + 5..0x5000].chars().all(|x| x == '\u{0}'));
assert_eq!(&s[0x5000..0x5000 + 5], "text\n");
assert!(s[0x5000 + 5..0x7000].chars().all(|x| x == '\u{0}'));
assert_eq!(&s[0x7000..0x7000 + 5], "text\n");
assert!(s[0x7000 + 5..0x9000].chars().all(|x| x == '\u{0}'));
assert_eq!(&s[0x9000..0x9000 + 5], "text\n");
assert!(s[0x9000 + 5..0xb000].chars().all(|x| x == '\u{0}'));
assert_eq!(&s[0xb000..0xb000 + 5], "text\n");
s.truncate(0);
t!(t!(File::open(td.path().join("sparse.txt"))).read_to_string(&mut s));
assert!(s[..0x1000].chars().all(|x| x == '\u{0}'));
assert_eq!(&s[0x1000..0x1000 + 6], "hello\n");
assert!(s[0x1000 + 6..0x2fa0].chars().all(|x| x == '\u{0}'));
assert_eq!(&s[0x2fa0..0x2fa0 + 6], "world\n");
assert!(s[0x2fa0 + 6..0x4000].chars().all(|x| x == '\u{0}'));
}
#[test]
fn sparse_with_trailing() {
let rdr = Cursor::new(tar!("sparse-1.tar"));
let mut ar = Archive::new(rdr);
let mut entries = t!(ar.entries());
let mut a = t!(entries.next().unwrap());
let mut s = String::new();
t!(a.read_to_string(&mut s));
assert_eq!(0x100_00c, s.len());
assert_eq!(&s[..0xc], "0MB through\n");
assert!(s[0xc..0x100_000].chars().all(|x| x == '\u{0}'));
assert_eq!(&s[0x100_000..], "1MB through\n");
}
#[test]
fn path_separators() {
let mut ar = Builder::new(Vec::new());
let td = t!(TempBuilder::new().prefix("tar-rs").tempdir());
let path = td.path().join("test");
t!(t!(File::create(&path)).write_all(b"test"));
let short_path: PathBuf = repeat("abcd").take(2).collect();
let long_path: PathBuf = repeat("abcd").take(50).collect();
// Make sure UStar headers normalize to Unix path separators
let mut header = Header::new_ustar();
t!(header.set_path(&short_path));
assert_eq!(t!(header.path()), short_path);
assert!(!header.path_bytes().contains(&b'\\'));
t!(header.set_path(&long_path));
assert_eq!(t!(header.path()), long_path);
assert!(!header.path_bytes().contains(&b'\\'));
// Make sure GNU headers normalize to Unix path separators,
// including the `@LongLink` fallback used by `append_file`.
t!(ar.append_file(&short_path, &mut t!(File::open(&path))));
t!(ar.append_file(&long_path, &mut t!(File::open(&path))));
let rd = Cursor::new(t!(ar.into_inner()));
let mut ar = Archive::new(rd);
let mut entries = t!(ar.entries());
let entry = t!(entries.next().unwrap());
assert_eq!(t!(entry.path()), short_path);
assert!(!entry.path_bytes().contains(&b'\\'));
let entry = t!(entries.next().unwrap());
assert_eq!(t!(entry.path()), long_path);
assert!(!entry.path_bytes().contains(&b'\\'));
assert!(entries.next().is_none());
}
#[test]
#[cfg(unix)]
fn append_path_symlink() {
use std::borrow::Cow;
use std::env;
use std::os::unix::fs::symlink;
let mut ar = Builder::new(Vec::new());
ar.follow_symlinks(false);
let td = t!(TempBuilder::new().prefix("tar-rs").tempdir());
let long_linkname = repeat("abcd").take(30).collect::<String>();
let long_pathname = repeat("dcba").take(30).collect::<String>();
t!(env::set_current_dir(td.path()));
// "short" path name / short link name
t!(symlink("testdest", "test"));
t!(ar.append_path("test"));
// short path name / long link name
t!(symlink(&long_linkname, "test2"));
t!(ar.append_path("test2"));
// long path name / long link name
t!(symlink(&long_linkname, &long_pathname));
t!(ar.append_path(&long_pathname));
let rd = Cursor::new(t!(ar.into_inner()));
let mut ar = Archive::new(rd);
let mut entries = t!(ar.entries());
let entry = t!(entries.next().unwrap());
assert_eq!(t!(entry.path()), Path::new("test"));
assert_eq!(
t!(entry.link_name()),
Some(Cow::from(Path::new("testdest")))
);
assert_eq!(t!(entry.header().size()), 0);
let entry = t!(entries.next().unwrap());
assert_eq!(t!(entry.path()), Path::new("test2"));
assert_eq!(
t!(entry.link_name()),
Some(Cow::from(Path::new(&long_linkname)))
);
assert_eq!(t!(entry.header().size()), 0);
let entry = t!(entries.next().unwrap());
assert_eq!(t!(entry.path()), Path::new(&long_pathname));
assert_eq!(
t!(entry.link_name()),
Some(Cow::from(Path::new(&long_linkname)))
);
assert_eq!(t!(entry.header().size()), 0);
assert!(entries.next().is_none());
}
#[test]
fn name_with_slash_doesnt_fool_long_link_and_bsd_compat() {
let td = t!(TempBuilder::new().prefix("tar-rs").tempdir());
let mut ar = Builder::new(Vec::new());
let mut h = Header::new_gnu();
t!(h.set_path("././@LongLink"));
h.set_size(4);
h.set_entry_type(EntryType::new(b'L'));
h.set_cksum();
t!(ar.append(&h, "foo\0".as_bytes()));
let mut header = Header::new_gnu();
header.set_entry_type(EntryType::Regular);
t!(header.set_path("testdir/"));
header.set_size(0);
header.set_cksum();
t!(ar.append(&header, &mut io::empty()));
// Extracting
let rdr = Cursor::new(t!(ar.into_inner()));
let mut ar = Archive::new(rdr);
t!(ar.unpack(td.path()));
// Iterating
let rdr = Cursor::new(ar.into_inner().into_inner());
let mut ar = Archive::new(rdr);
assert!(t!(ar.entries()).all(|fr| fr.is_ok()));
assert!(td.path().join("foo").is_file());
}
#[test]
fn insert_local_file_different_name() {
let mut ar = Builder::new(Vec::new());
let td = t!(TempBuilder::new().prefix("tar-rs").tempdir());
let path = td.path().join("directory");
t!(fs::create_dir(&path));
ar.append_path_with_name(&path, "archive/dir").unwrap();
let path = td.path().join("file");
t!(t!(File::create(&path)).write_all(b"test"));
ar.append_path_with_name(&path, "archive/dir/f").unwrap();
let rd = Cursor::new(t!(ar.into_inner()));
let mut ar = Archive::new(rd);
let mut entries = t!(ar.entries());
let entry = t!(entries.next().unwrap());
assert_eq!(t!(entry.path()), Path::new("archive/dir"));
let entry = t!(entries.next().unwrap());
assert_eq!(t!(entry.path()), Path::new("archive/dir/f"));
assert!(entries.next().is_none());
}
#[test]
#[cfg(unix)]
fn tar_directory_containing_symlink_to_directory() {
use std::os::unix::fs::symlink;
let td = t!(TempBuilder::new().prefix("tar-rs").tempdir());
let dummy_src = t!(TempBuilder::new().prefix("dummy_src").tempdir());
let dummy_dst = td.path().join("dummy_dst");
let mut ar = Builder::new(Vec::new());
t!(symlink(dummy_src.path().display().to_string(), &dummy_dst));
assert!(dummy_dst.read_link().is_ok());
assert!(dummy_dst.read_link().unwrap().is_dir());
ar.append_dir_all("symlinks", td.path()).unwrap();
ar.finish().unwrap();
}
#[test]
fn long_path() {
let td = t!(TempBuilder::new().prefix("tar-rs").tempdir());
let rdr = Cursor::new(tar!("7z_long_path.tar"));
let mut ar = Archive::new(rdr);
assert!(ar.unpack(td.path()).is_ok());
}
#[test]
fn unpack_path_larger_than_windows_max_path() {
let dir_name = "iamaprettylongnameandtobepreciseiam91characterslongwhichsomethinkisreallylongandothersdonot";
// 183 character directory name
let really_long_path = format!("{}{}", dir_name, dir_name);
let td = t!(TempBuilder::new().prefix(&really_long_path).tempdir());
// directory in 7z_long_path.tar is over 100 chars
let rdr = Cursor::new(tar!("7z_long_path.tar"));
let mut ar = Archive::new(rdr);
// should unpack path greater than windows MAX_PATH length of 260 characters
assert!(ar.unpack(td.path()).is_ok());
}
#[test]
fn append_long_multibyte() {
let mut x = tar::Builder::new(Vec::new());
let mut name = String::new();
let data: &[u8] = &[];
for _ in 0..512 {
name.push('a');
name.push('𑢮');
x.append_data(&mut Header::new_gnu(), &name, data).unwrap();
name.pop();
}
}
#[test]
fn read_only_directory_containing_files() {
let td = t!(TempBuilder::new().prefix("tar-rs").tempdir());
let mut b = Builder::new(Vec::<u8>::new());
let mut h = Header::new_gnu();
t!(h.set_path("dir/"));
h.set_size(0);
h.set_entry_type(EntryType::dir());
h.set_mode(0o444);
h.set_cksum();
t!(b.append(&h, "".as_bytes()));
let mut h = Header::new_gnu();
t!(h.set_path("dir/file"));
h.set_size(2);
h.set_entry_type(EntryType::file());
h.set_cksum();
t!(b.append(&h, "hi".as_bytes()));
let contents = t!(b.into_inner());
let mut ar = Archive::new(&contents[..]);
assert!(ar.unpack(td.path()).is_ok());
}
// This test was marked linux only due to macOS CI can't handle `set_current_dir` correctly
#[test]
#[cfg(target_os = "linux")]
fn tar_directory_containing_special_files() {
use std::env;
use std::ffi::CString;
let td = t!(TempBuilder::new().prefix("tar-rs").tempdir());
let fifo = td.path().join("fifo");
unsafe {
let fifo_path = t!(CString::new(fifo.to_str().unwrap()));
let ret = libc::mknod(fifo_path.as_ptr(), libc::S_IFIFO | 0o644, 0);
if ret != 0 {
libc::perror(fifo_path.as_ptr());
panic!("Failed to create a FIFO file");
}
}
t!(env::set_current_dir(td.path()));
let mut ar = Builder::new(Vec::new());
// append_path has a different logic for processing files, so we need to test it as well
t!(ar.append_path("fifo"));
t!(ar.append_dir_all("special", td.path()));
t!(env::set_current_dir("/dev/"));
// CI systems seem to have issues with creating a chr device
t!(ar.append_path("null"));
t!(ar.finish());
}
#[test]
fn header_size_overflow() {
// maximal file size doesn't overflow anything
let mut ar = Builder::new(Vec::new());
let mut header = Header::new_gnu();
header.set_size(u64::MAX);
header.set_cksum();
ar.append(&mut header, "x".as_bytes()).unwrap();
let result = t!(ar.into_inner());
let mut ar = Archive::new(&result[..]);
let mut e = ar.entries().unwrap();
let err = e.next().unwrap().err().unwrap();
assert!(
err.to_string().contains("size overflow"),
"bad error: {}",
err
);
// back-to-back entries that would overflow also don't panic
let mut ar = Builder::new(Vec::new());
let mut header = Header::new_gnu();
header.set_size(1_000);
header.set_cksum();
ar.append(&mut header, &[0u8; 1_000][..]).unwrap();
let mut header = Header::new_gnu();
header.set_size(u64::MAX - 513);
header.set_cksum();
ar.append(&mut header, "x".as_bytes()).unwrap();
let result = t!(ar.into_inner());
let mut ar = Archive::new(&result[..]);
let mut e = ar.entries().unwrap();
e.next().unwrap().unwrap();
let err = e.next().unwrap().err().unwrap();
assert!(
err.to_string().contains("size overflow"),
"bad error: {}",
err
);
}
#[test]
#[cfg(unix)]
fn ownership_preserving() {
use std::os::unix::prelude::*;
let mut rdr = Vec::new();
let mut ar = Builder::new(&mut rdr);
let data: &[u8] = &[];
let mut header = Header::new_gnu();
// file 1 with uid = 580800000, gid = 580800000
header.set_gid(580800000);
header.set_uid(580800000);
t!(header.set_path("iamuid580800000"));
header.set_size(0);
header.set_cksum();
t!(ar.append(&header, data));
// file 2 with uid = 580800001, gid = 580800000
header.set_uid(580800001);
t!(header.set_path("iamuid580800001"));
header.set_cksum();
t!(ar.append(&header, data));
// file 3 with uid = 580800002, gid = 580800002
header.set_gid(580800002);
header.set_uid(580800002);
t!(header.set_path("iamuid580800002"));
header.set_cksum();
t!(ar.append(&header, data));
t!(ar.finish());
let rdr = Cursor::new(t!(ar.into_inner()));
let td = t!(TempBuilder::new().prefix("tar-rs").tempdir());
let mut ar = Archive::new(rdr);
ar.set_preserve_ownerships(true);
if unsafe { libc::getuid() } == 0 {
assert!(ar.unpack(td.path()).is_ok());
// validate against premade files
// iamuid580800001 has this ownership: 580800001:580800000
let meta = std::fs::metadata(td.path().join("iamuid580800000")).unwrap();
assert_eq!(meta.uid(), 580800000);
assert_eq!(meta.gid(), 580800000);
let meta = std::fs::metadata(td.path().join("iamuid580800001")).unwrap();
assert_eq!(meta.uid(), 580800001);
assert_eq!(meta.gid(), 580800000);
let meta = std::fs::metadata(td.path().join("iamuid580800002")).unwrap();
assert_eq!(meta.uid(), 580800002);
assert_eq!(meta.gid(), 580800002);
} else {
// it's not possible to unpack tar while preserving ownership
// without root permissions
assert!(ar.unpack(td.path()).is_err());
}
}
#[test]
#[cfg(unix)]
fn pax_and_gnu_uid_gid() {
let tarlist = [tar!("biguid_gnu.tar"), tar!("biguid_pax.tar")];
for file in &tarlist {
let td = t!(TempBuilder::new().prefix("tar-rs").tempdir());
let rdr = Cursor::new(file);
let mut ar = Archive::new(rdr);
ar.set_preserve_ownerships(true);
if unsafe { libc::getuid() } == 0 {
t!(ar.unpack(td.path()));
let meta = fs::metadata(td.path().join("test.txt")).unwrap();
let uid = std::os::unix::prelude::MetadataExt::uid(&meta);
let gid = std::os::unix::prelude::MetadataExt::gid(&meta);
// 4294967294 = u32::MAX - 1
assert_eq!(uid, 4294967294);
assert_eq!(gid, 4294967294);
} else {
// it's not possible to unpack tar while preserving ownership
// without root permissions
assert!(ar.unpack(td.path()).is_err());
}
}
}