56 lines
1.5 KiB
Go
56 lines
1.5 KiB
Go
//go:build !windows && !freebsd
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/*
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Copyright The containerd Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package archive
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import (
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"os"
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"golang.org/x/sys/unix"
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)
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// mknod wraps Unix.Mknod and casts dev to int
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func mknod(path string, mode uint32, dev uint64) error {
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return unix.Mknod(path, mode, int(dev))
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}
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// lsetxattrCreate wraps unix.Lsetxattr, passes the unix.XATTR_CREATE flag on
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// supported operating systems,and ignores appropriate errors
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func lsetxattrCreate(link string, attr string, data []byte) error {
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err := unix.Lsetxattr(link, attr, data, unix.XATTR_CREATE)
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if err == unix.ENOTSUP || err == unix.ENODATA || err == unix.EEXIST {
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return nil
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}
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return err
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}
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// lchmod checks for symlink and changes the mode if not a symlink
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func lchmod(path string, mode os.FileMode) error {
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fi, err := os.Lstat(path)
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if err != nil {
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return err
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}
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if fi.Mode()&os.ModeSymlink == 0 {
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if err := os.Chmod(path, mode); err != nil {
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return err
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}
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}
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return nil
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}
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