diff options
Diffstat (limited to 'internal/fusefrontend/file.go')
| -rw-r--r-- | internal/fusefrontend/file.go | 30 |
1 files changed, 18 insertions, 12 deletions
diff --git a/internal/fusefrontend/file.go b/internal/fusefrontend/file.go index b9bb2c9..61b1e55 100644 --- a/internal/fusefrontend/file.go +++ b/internal/fusefrontend/file.go @@ -388,23 +388,29 @@ func (f *file) GetAttr(a *fuse.Attr) fuse.Status { const _UTIME_OMIT = ((1 << 30) - 2) +// utimeToTimespec converts a "time.Time" pointer as passed to Utimens to a +// Timespec that can be passed to the utimensat syscall. +func utimeToTimespec(t *time.Time) (ts syscall.Timespec) { + if t == nil { + ts.Nsec = _UTIME_OMIT + } else { + ts = syscall.NsecToTimespec(t.UnixNano()) + // For dates before 1970, NsecToTimespec incorrectly returns negative + // nanoseconds. Ticket: https://github.com/golang/go/issues/12777 + if ts.Nsec < 0 { + ts.Nsec = 0 + } + } + return ts +} + func (f *file) Utimens(a *time.Time, m *time.Time) fuse.Status { f.fdLock.RLock() defer f.fdLock.RUnlock() ts := make([]syscall.Timespec, 2) - - if a == nil { - ts[0].Nsec = _UTIME_OMIT - } else { - ts[0].Sec = a.Unix() - } - - if m == nil { - ts[1].Nsec = _UTIME_OMIT - } else { - ts[1].Sec = m.Unix() - } + ts[0] = utimeToTimespec(a) + ts[1] = utimeToTimespec(m) fn := fmt.Sprintf("/proc/self/fd/%d", f.fd.Fd()) err := syscall.UtimesNano(fn, ts) |