pxar: change uid and gid to u32 instead of u64

Signed-off-by: Christian Ebner <c.ebner@proxmox.com>

src/pxar/encoder.rs

@@ -198,8 +198,8 @@ impl <'a, W: Write> Encoder<'a, W> {
         let entry = PxarEntry {
             mode: mode,
             flags: 0,
-            uid: stat.st_uid as u64,
-            gid: stat.st_gid as u64,
+            uid: stat.st_uid,
+            gid: stat.st_gid,
             mtime: mtime as u64,
         };
 

src/pxar/format_definition.rs

@@ -51,8 +51,8 @@ pub struct PxarHeader {
 pub struct PxarEntry {
     pub mode: u64,
     pub flags: u64,
-    pub uid: u64,
-    pub gid: u64,
+    pub uid: u32,
+    pub gid: u32,
     pub mtime: u64,
 }
 

src/pxar/sequential_decoder.rs

@@ -378,8 +378,8 @@ impl <'a, R: Read, F: Fn(&Path) -> Result<(), Error>> SequentialDecoder<'a, R, F
 
     fn restore_ugid(&mut self, entry: &PxarEntry, fd: RawFd) -> Result<(), Error> {
 
-        let uid = entry.uid as u32;
-        let gid = entry.gid as u32;
+        let uid = entry.uid;
+        let gid = entry.gid;
 
         let res = unsafe { libc::fchown(fd, uid, gid) };
         Errno::result(res)?;