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Aram Hăvărneanu6d0d08b2014-01-10 02:49:37 +11001// Copyright 2009 The Go Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style
3// license that can be found in the LICENSE file.
4
5package os
6
7import (
8 "syscall"
9 "time"
10)
11
12func sameFile(fs1, fs2 *fileStat) bool {
13 stat1 := fs1.sys.(*syscall.Stat_t)
14 stat2 := fs2.sys.(*syscall.Stat_t)
15 return stat1.Dev == stat2.Dev && stat1.Ino == stat2.Ino
16}
17
18func fileInfoFromStat(st *syscall.Stat_t, name string) FileInfo {
19 fs := &fileStat{
20 name: basename(name),
21 size: int64(st.Size),
22 modTime: timespecToTime(st.Mtim),
23 sys: st,
24 }
25 fs.mode = FileMode(st.Mode & 0777)
26 switch st.Mode & syscall.S_IFMT {
27 case syscall.S_IFBLK:
28 fs.mode |= ModeDevice
29 case syscall.S_IFCHR:
30 fs.mode |= ModeDevice | ModeCharDevice
31 case syscall.S_IFDIR:
32 fs.mode |= ModeDir
33 case syscall.S_IFIFO:
34 fs.mode |= ModeNamedPipe
35 case syscall.S_IFLNK:
36 fs.mode |= ModeSymlink
37 case syscall.S_IFREG:
38 // nothing to do
39 case syscall.S_IFSOCK:
40 fs.mode |= ModeSocket
41 }
42 if st.Mode&syscall.S_ISGID != 0 {
43 fs.mode |= ModeSetgid
44 }
45 if st.Mode&syscall.S_ISUID != 0 {
46 fs.mode |= ModeSetuid
47 }
48 if st.Mode&syscall.S_ISVTX != 0 {
49 fs.mode |= ModeSticky
50 }
51 return fs
52}
53
54func timespecToTime(ts syscall.Timespec) time.Time {
55 return time.Unix(int64(ts.Sec), int64(ts.Nsec))
56}
57
58// For testing.
59func atime(fi FileInfo) time.Time {
60 return timespecToTime(fi.Sys().(*syscall.Stat_t).Atim)
61}