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 } 62
