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file_unix.go
73 lines (58 loc) · 1.35 KB
/
file_unix.go
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//go:build linux || darwin
// +build linux darwin
package osfs
import (
"fmt"
"io/fs"
"strconv"
"syscall"
)
func (f *osFile) uid() (uid string, err error) {
iuid, _, _, err := f.ids()
if err != nil {
return "", err
}
return strconv.Itoa(iuid), nil
}
func (f *osFile) gid() (gid string, err error) {
_, igid, _, err := f.ids()
if err != nil {
return "", err
}
return strconv.Itoa(igid), nil
}
func (f *osFile) own() (uid, gid string, err error) {
iuid, igid, _, err := f.ids()
if err != nil {
return "", "", err
}
return strconv.Itoa(iuid), strconv.Itoa(igid), nil
}
func (f *osFile) chown(uid, gid string) (err error) {
return f.fs.Lchown(f.name(), uid, gid)
}
func (f *osFile) chuid(uid string) (err error) {
_, cgid, _, err := f.ids()
if err != nil {
return err
}
return f.fs.Lchown(f.name(), uid, strconv.Itoa(cgid))
}
func (f *osFile) chgid(gid string) (err error) {
cuid, _, _, err := f.ids()
if err != nil {
return err
}
return f.fs.Lchown(f.name(), strconv.Itoa(cuid), gid)
}
func (f *osFile) ids() (uid int, gid int, info fs.FileInfo, err error) {
fi, err := f.fs.Lstat(f.name())
if err != nil {
return -1, -1, nil, err
}
stat, ok := info.Sys().(*syscall.Stat_t)
if !ok {
return -1, -1, nil, fmt.Errorf("failed to assert *syscall.Stat_t for type: %T", info.Sys())
}
return int(stat.Uid), int(stat.Gid), fi, nil
}