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Properly handle FileMode

This commit is contained in:
Jakob Unterwurzacher 2015-09-04 09:05:52 +02:00
parent 6a110b8dde
commit 779ad6dda3
1 changed files with 35 additions and 1 deletions
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36
frontend/node.go
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@ -22,6 +22,40 @@ type Node struct {
parentFS *FS
}
// FileModeFromStat - create os.FileMode from stat value
// For some reason, they use different constants.
// Adapted from https://golang.org/src/os/stat_linux.go
func FileModeFromStat(st *syscall.Stat_t) os.FileMode {
fileMode := os.FileMode(st.Mode & 0777)
switch st.Mode & syscall.S_IFMT {
case syscall.S_IFBLK:
fileMode |= os.ModeDevice
case syscall.S_IFCHR:
fileMode |= os.ModeDevice | os.ModeCharDevice
case syscall.S_IFDIR:
fileMode |= os.ModeDir
case syscall.S_IFIFO:
fileMode |= os.ModeNamedPipe
case syscall.S_IFLNK:
fileMode |= os.ModeSymlink
case syscall.S_IFREG:
// nothing to do
case syscall.S_IFSOCK:
fileMode |= os.ModeSocket
}
if st.Mode & syscall.S_ISGID != 0 {
fileMode |= os.ModeSetgid
}
if st.Mode & syscall.S_ISUID != 0 {
fileMode |= os.ModeSetuid
}
if st.Mode & syscall.S_ISVTX != 0 {
fileMode |= os.ModeSticky
}
return fileMode
}
func StatToAttr(s *syscall.Stat_t, a *fuse.Attr) {
a.Inode = s.Ino
a.Size = uint64(s.Size)
@ -29,7 +63,7 @@ func StatToAttr(s *syscall.Stat_t, a *fuse.Attr) {
a.Atime = time.Unix(s.Atim.Sec, s.Atim.Nsec)
a.Mtime = time.Unix(s.Mtim.Sec, s.Mtim.Nsec)
a.Ctime = time.Unix(s.Ctim.Sec, s.Ctim.Nsec)
a.Mode = os.FileMode(s.Mode) | os.ModeDir
a.Mode = FileModeFromStat(s)
a.Nlink = uint32(s.Nlink)
a.Uid = uint32(s.Uid)
a.Gid = uint32(s.Gid)