func (file *File) Removexattr(req *fuse.RemovexattrRequest, intr fs.Intr) fuse.Error {
err := syscallx.Removexattr(file.Path, req.Name)
if err != nil {
fmt.Printf("Err removing attr: %s\n", err)
return err
}
return nil
}
func (n *Node) Removexattr(ctx context.Context, req *fuse.RemovexattrRequest) error {
defer trace(NewRemovexattrOp(req, n.path))
// TODO: this needs to be improved, since the behavior of Removexattr depends
// on the previous existance of the attribute. The return code of the operation
// is governed by the flags. See bazil.org/fuse/syscallx.Removexattr comments.
_, err := syscallx.Getxattr(n.path, req.Name, []byte{})
if err == nil {
// TODO: There is already an attribute with that name. Should return
// the expected error code according to the request's flags
err = syscallx.Removexattr(n.path, req.Name)
return osErrorToFuseError(err)
}
return nil
}
func TestRemovexattr(t *testing.T) {
t.Parallel()
f := &removexattr{}
mnt, err := fstestutil.MountedT(t, childMapFS{"child": f})
if err != nil {
t.Fatal(err)
}
defer mnt.Close()
err = syscallx.Removexattr(mnt.Dir+"/child", "greeting")
if err != nil {
t.Errorf("unexpected error: %v", err)
return
}
want := fuse.RemovexattrRequest{Name: "greeting"}
if g, e := f.RecordedRemovexattr(), want; g != e {
t.Errorf("removexattr saw %v, want %v", g, e)
}
}
func Remove(path string, key string) error {
return syscallx.Removexattr(path, key)
}
func TestXattr(t *testing.T) {
condSkip(t)
inEmptyMutDir(t, func(env *mountEnv, rootDir string) {
name1 := filepath.Join(rootDir, "1")
attr1 := "attr1"
attr2 := "attr2"
contents := []byte("Some file contents")
if err := ioutil.WriteFile(name1, contents, 0644); err != nil {
t.Fatal(err)
}
buf := make([]byte, 8192)
// list empty
n, err := syscallx.Listxattr(name1, buf)
if err != nil {
t.Errorf("Error in initial listxattr: %v", err)
}
if n != 0 {
t.Errorf("Expected zero-length xattr list, got %q", buf[:n])
}
// get missing
n, err = syscallx.Getxattr(name1, attr1, buf)
if err == nil {
t.Errorf("Expected error getting non-existent xattr, got %q", buf[:n])
}
// Set (two different attributes)
err = syscallx.Setxattr(name1, attr1, []byte("hello1"), 0)
if err != nil {
t.Fatalf("Error setting xattr: %v", err)
}
err = syscallx.Setxattr(name1, attr2, []byte("hello2"), 0)
if err != nil {
t.Fatalf("Error setting xattr: %v", err)
}
// Alternate value for first attribute
err = syscallx.Setxattr(name1, attr1, []byte("hello1a"), 0)
if err != nil {
t.Fatalf("Error setting xattr: %v", err)
}
// list attrs
n, err = syscallx.Listxattr(name1, buf)
if err != nil {
t.Errorf("Error in initial listxattr: %v", err)
}
m := parseXattrList(buf[:n])
if !(len(m) == 2 && m[attr1] && m[attr2]) {
t.Errorf("Missing an attribute: %q", buf[:n])
}
// Remove attr
err = syscallx.Removexattr(name1, attr2)
if err != nil {
t.Errorf("Failed to remove attr: %v", err)
}
// List attrs
n, err = syscallx.Listxattr(name1, buf)
if err != nil {
t.Errorf("Error in initial listxattr: %v", err)
}
m = parseXattrList(buf[:n])
if !(len(m) == 1 && m[attr1]) {
t.Errorf("Missing an attribute: %q", buf[:n])
}
// Get remaining attr
n, err = syscallx.Getxattr(name1, attr1, buf)
if err != nil {
t.Errorf("Error getting attr1: %v", err)
}
if string(buf[:n]) != "hello1a" {
t.Logf("Expected hello1a, got %q", buf[:n])
}
})
}
