mirror of
https://github.com/vbatts/go-mtree.git
synced 2024-12-18 12:06:30 +00:00
42 lines
984 B
Go
42 lines
984 B
Go
// +build linux
|
|
|
|
package xattr
|
|
|
|
import (
|
|
"strings"
|
|
"syscall"
|
|
)
|
|
|
|
// Get returns the extended attributes (xattr) on file `path`, for the given `name`.
|
|
func Get(path, name string) ([]byte, error) {
|
|
dest := make([]byte, 1024)
|
|
i, err := syscall.Getxattr(path, name, dest)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
return dest[:i], nil
|
|
}
|
|
|
|
// Set sets the extended attributes (xattr) on file `path`, for the given `name` and `value`
|
|
func Set(path, name string, value []byte) error {
|
|
return syscall.Setxattr(path, name, value, 0)
|
|
}
|
|
|
|
// List returns a list of all the extended attributes (xattr) for file `path`
|
|
func List(path string) ([]string, error) {
|
|
dest := make([]byte, 1024)
|
|
i, err := syscall.Listxattr(path, dest)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
// If the returned list is empty, return nil instead of []string{""}
|
|
str := string(dest[:i])
|
|
if str == "" {
|
|
return nil, nil
|
|
}
|
|
|
|
return strings.Split(strings.TrimRight(str, nilByte), nilByte), nil
|
|
}
|
|
|
|
const nilByte = "\x00"
|