Aram Hăvărneanu | 6d0d08b | 2014-01-10 02:49:37 +1100 | [diff] [blame] | 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 | |
| 5 | package os |
| 6 | |
| 7 | import ( |
| 8 | "syscall" |
| 9 | "time" |
| 10 | ) |
| 11 | |
| 12 | func 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 | |
| 18 | func 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 | |
| 54 | func timespecToTime(ts syscall.Timespec) time.Time { |
| 55 | return time.Unix(int64(ts.Sec), int64(ts.Nsec)) |
| 56 | } |
| 57 | |
| 58 | // For testing. |
| 59 | func atime(fi FileInfo) time.Time { |
| 60 | return timespecToTime(fi.Sys().(*syscall.Stat_t).Atim) |
| 61 | } |