/
mountinfo_bsd.go
68 lines (58 loc) · 1.29 KB
/
mountinfo_bsd.go
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//go:build freebsd || openbsd || darwin
// +build freebsd openbsd darwin
package mountinfo
import "syscall"
func int8SliceToString(is []int8) string {
var bs []byte
for _, i := range is {
if i == 0 {
break
}
bs = append(bs, byte(i))
}
return string(bs)
}
// parseMountTable returns information about mounted filesystems
func parseMountTable(filter FilterFunc) ([]*Info, error) {
const MNT_WAIT = 1
count, err := syscall.Getfsstat(nil, MNT_WAIT)
if err != nil {
return nil, err
}
entries := make([]syscall.Statfs_t, count)
_, err = syscall.Getfsstat(entries, MNT_WAIT)
if err != nil {
return nil, err
}
var out []*Info
for _, entry := range entries {
var skip, stop bool
mountinfo := getMountinfo(entry)
if filter != nil {
// filter out entries we're not interested in
skip, stop = filter(&mountinfo)
if skip {
continue
}
}
out = append(out, &mountinfo)
if stop {
break
}
}
return out, nil
}
func mounted(path string) (bool, error) {
path, err := normalizePath(path)
if err != nil {
return false, err
}
// Fast path: compare st.st_dev fields.
// This should always work for FreeBSD and OpenBSD.
mounted, err := mountedByStat(path)
if err == nil {
return mounted, nil
}
// Fallback to parsing mountinfo
return mountedByMountinfo(path)
}