1// 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 fillFileStatFromSys(fs *fileStat, name string) {
13	fs.name = basename(name)
14	fs.size = int64(fs.sys.Size)
15	fs.modTime = timespecToTime(fs.sys.Mtime, fs.sys.MtimeNsec)
16	fs.mode = FileMode(fs.sys.Mode & 0777)
17	switch fs.sys.Mode & syscall.S_IFMT {
18	case syscall.S_IFBLK:
19		fs.mode |= ModeDevice
20	case syscall.S_IFCHR:
21		fs.mode |= ModeDevice | ModeCharDevice
22	case syscall.S_IFDIR:
23		fs.mode |= ModeDir
24	case syscall.S_IFIFO:
25		fs.mode |= ModeNamedPipe
26	case syscall.S_IFLNK:
27		fs.mode |= ModeSymlink
28	case syscall.S_IFREG:
29		// nothing to do
30	case syscall.S_IFSOCK:
31		fs.mode |= ModeSocket
32	}
33	if fs.sys.Mode&syscall.S_ISGID != 0 {
34		fs.mode |= ModeSetgid
35	}
36	if fs.sys.Mode&syscall.S_ISUID != 0 {
37		fs.mode |= ModeSetuid
38	}
39	if fs.sys.Mode&syscall.S_ISVTX != 0 {
40		fs.mode |= ModeSticky
41	}
42}
43
44func timespecToTime(sec, nsec int64) time.Time {
45	return time.Unix(sec, nsec)
46}
47
48// For testing.
49func atime(fi FileInfo) time.Time {
50	st := fi.Sys().(*syscall.Stat_t)
51	return timespecToTime(st.Atime, st.AtimeNsec)
52}
53