mirror of
https://github.com/versity/scoutfs-go.git
synced 2025-12-23 13:15:19 +00:00
55 lines
1.1 KiB
Go
55 lines
1.1 KiB
Go
// Copyright (c) 2018 Versity Software, Inc.
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//
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// Use of this source code is governed by a BSD-3-Clause license
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// that can be found in the LICENSE file in the root of the source
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// tree.
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package main
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import (
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"fmt"
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"log"
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"os"
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scoutfs "github.com/versity/scoutfs-go"
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)
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// # can list more attributes than getfattr
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// touch /mnt/scoutfs/file
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// for i in $(seq 1 10000); do setfattr -n "user.lots-$i" /mnt/scoutfs/file; done
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// ./listxattr /mnt/scoutfs/file | wc -l
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//
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// # can list scoutfs hidden attrs
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// touch /mnt/scoutfs/file
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// setfattr -n scoutfs.hide.invisible /mnt/scoutfs/file
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// ./listxattr /mnt/scoutfs/file
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func main() {
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if len(os.Args) != 2 || os.Args[1] == "-h" {
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fmt.Fprintln(os.Stderr, "usage:", os.Args[0], "<filepath>")
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os.Exit(1)
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}
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f, err := os.OpenFile(os.Args[1], os.O_RDONLY, 0)
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if err != nil {
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log.Fatalf("open %v: %v", os.Args[1], err)
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}
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b := make([]byte, 256*1024)
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lxr := scoutfs.NewListXattrHidden(f, b)
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for {
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attrs, err := lxr.Next()
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if err != nil {
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log.Fatalf("next(): %v", err)
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}
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if attrs == nil {
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break
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}
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for _, attr := range attrs {
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fmt.Println(attr)
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}
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}
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}
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