mirror of
https://github.com/vbatts/tar-split.git
synced 2024-12-19 20:06:30 +00:00
Vincent Batts
b48c28014e
The issue was identified while working with round trip FileInfo of the headers of hardlinks. Also, additional test cases for hard link handling. (review carried over from http://golang.org/cl/165860043) Fixes #9027 Change-Id: I9e3a724c8de72eb1b0fbe0751a7b488894911b76 Reviewed-on: https://go-review.googlesource.com/6790 Reviewed-by: Russ Cox <rsc@golang.org> Signed-off-by: Vincent Batts <vbatts@hashbangbash.com>
56 lines
1.2 KiB
Go
56 lines
1.2 KiB
Go
// Copyright 2012 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// +build linux darwin dragonfly freebsd openbsd netbsd solaris
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package tar
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import (
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"os"
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"syscall"
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)
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func init() {
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sysStat = statUnix
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}
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func statUnix(fi os.FileInfo, h *Header) error {
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switch sys := fi.Sys().(type) {
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case *syscall.Stat_t:
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h.Uid = int(sys.Uid)
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h.Gid = int(sys.Gid)
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// TODO(bradfitz): populate username & group. os/user
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// doesn't cache LookupId lookups, and lacks group
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// lookup functions.
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h.AccessTime = statAtime(sys)
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h.ChangeTime = statCtime(sys)
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// TODO(bradfitz): major/minor device numbers?
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if fi.Mode().IsRegular() && sys.Nlink > 1 {
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h.Typeflag = TypeLink
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h.Size = 0
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// TODO(vbatts): Linkname?
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}
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case *Header:
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// for the roundtrip logic
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h.Uid = sys.Uid
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h.Gid = sys.Gid
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h.Uname = sys.Uname
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h.Gname = sys.Gname
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h.AccessTime = sys.AccessTime
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h.ChangeTime = sys.ChangeTime
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if sys.Xattrs != nil {
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h.Xattrs = make(map[string]string)
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for k, v := range sys.Xattrs {
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h.Xattrs[k] = v
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}
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}
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if sys.Typeflag == TypeLink {
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// hard link
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h.Typeflag = TypeLink
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h.Size = 0
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h.Linkname = sys.Linkname
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}
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}
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return nil
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}
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