author | Mikael Berthe <mikael@lilotux.net> |
Sun, 16 Feb 2020 18:54:01 +0100 | |
changeset 251 | 1c52a0eeb952 |
parent 242 | 2a9ec03fe5a1 |
child 256 | 6d9efbef00a9 |
permissions | -rw-r--r-- |
242
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
1 |
// Copyright 2018 The Go Authors. All rights reserved. |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
2 |
// Use of this source code is governed by a BSD-style |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
3 |
// license that can be found in the LICENSE file. |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
4 |
|
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
5 |
// +build freebsd netbsd |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
6 |
|
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
7 |
package unix |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
8 |
|
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
9 |
import ( |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
10 |
"strings" |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
11 |
"unsafe" |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
12 |
) |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
13 |
|
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
14 |
// Derive extattr namespace and attribute name |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
15 |
|
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
16 |
func xattrnamespace(fullattr string) (ns int, attr string, err error) { |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
17 |
s := strings.IndexByte(fullattr, '.') |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
18 |
if s == -1 { |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
19 |
return -1, "", ENOATTR |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
20 |
} |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
21 |
|
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
22 |
namespace := fullattr[0:s] |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
23 |
attr = fullattr[s+1:] |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
24 |
|
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
25 |
switch namespace { |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
26 |
case "user": |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
27 |
return EXTATTR_NAMESPACE_USER, attr, nil |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
28 |
case "system": |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
29 |
return EXTATTR_NAMESPACE_SYSTEM, attr, nil |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
30 |
default: |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
31 |
return -1, "", ENOATTR |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
32 |
} |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
33 |
} |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
34 |
|
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
35 |
func initxattrdest(dest []byte, idx int) (d unsafe.Pointer) { |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
36 |
if len(dest) > idx { |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
37 |
return unsafe.Pointer(&dest[idx]) |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
38 |
} else { |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
39 |
return unsafe.Pointer(_zero) |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
40 |
} |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
41 |
} |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
42 |
|
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
43 |
// FreeBSD and NetBSD implement their own syscalls to handle extended attributes |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
44 |
|
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
45 |
func Getxattr(file string, attr string, dest []byte) (sz int, err error) { |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
46 |
d := initxattrdest(dest, 0) |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
47 |
destsize := len(dest) |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
48 |
|
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
49 |
nsid, a, err := xattrnamespace(attr) |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
50 |
if err != nil { |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
51 |
return -1, err |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
52 |
} |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
53 |
|
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
54 |
return ExtattrGetFile(file, nsid, a, uintptr(d), destsize) |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
55 |
} |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
56 |
|
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
57 |
func Fgetxattr(fd int, attr string, dest []byte) (sz int, err error) { |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
58 |
d := initxattrdest(dest, 0) |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
59 |
destsize := len(dest) |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
60 |
|
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
61 |
nsid, a, err := xattrnamespace(attr) |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
62 |
if err != nil { |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
63 |
return -1, err |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
64 |
} |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
65 |
|
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
66 |
return ExtattrGetFd(fd, nsid, a, uintptr(d), destsize) |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
67 |
} |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
68 |
|
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
69 |
func Lgetxattr(link string, attr string, dest []byte) (sz int, err error) { |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
70 |
d := initxattrdest(dest, 0) |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
71 |
destsize := len(dest) |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
72 |
|
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
73 |
nsid, a, err := xattrnamespace(attr) |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
74 |
if err != nil { |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
75 |
return -1, err |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
76 |
} |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
77 |
|
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
78 |
return ExtattrGetLink(link, nsid, a, uintptr(d), destsize) |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
79 |
} |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
80 |
|
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
81 |
// flags are unused on FreeBSD |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
82 |
|
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
83 |
func Fsetxattr(fd int, attr string, data []byte, flags int) (err error) { |
251 | 84 |
var d unsafe.Pointer |
85 |
if len(data) > 0 { |
|
86 |
d = unsafe.Pointer(&data[0]) |
|
87 |
} |
|
242
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
88 |
datasiz := len(data) |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
89 |
|
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
90 |
nsid, a, err := xattrnamespace(attr) |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
91 |
if err != nil { |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
92 |
return |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
93 |
} |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
94 |
|
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
95 |
_, err = ExtattrSetFd(fd, nsid, a, uintptr(d), datasiz) |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
96 |
return |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
97 |
} |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
98 |
|
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
99 |
func Setxattr(file string, attr string, data []byte, flags int) (err error) { |
251 | 100 |
var d unsafe.Pointer |
101 |
if len(data) > 0 { |
|
102 |
d = unsafe.Pointer(&data[0]) |
|
103 |
} |
|
242
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
104 |
datasiz := len(data) |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
105 |
|
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
106 |
nsid, a, err := xattrnamespace(attr) |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
107 |
if err != nil { |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
108 |
return |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
109 |
} |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
110 |
|
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
111 |
_, err = ExtattrSetFile(file, nsid, a, uintptr(d), datasiz) |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
112 |
return |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
113 |
} |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
114 |
|
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
115 |
func Lsetxattr(link string, attr string, data []byte, flags int) (err error) { |
251 | 116 |
var d unsafe.Pointer |
117 |
if len(data) > 0 { |
|
118 |
d = unsafe.Pointer(&data[0]) |
|
119 |
} |
|
242
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
120 |
datasiz := len(data) |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
121 |
|
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
122 |
nsid, a, err := xattrnamespace(attr) |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
123 |
if err != nil { |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
124 |
return |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
125 |
} |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
126 |
|
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
127 |
_, err = ExtattrSetLink(link, nsid, a, uintptr(d), datasiz) |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
128 |
return |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
129 |
} |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
130 |
|
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
131 |
func Removexattr(file string, attr string) (err error) { |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
132 |
nsid, a, err := xattrnamespace(attr) |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
133 |
if err != nil { |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
134 |
return |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
135 |
} |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
136 |
|
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
137 |
err = ExtattrDeleteFile(file, nsid, a) |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
138 |
return |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
139 |
} |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
140 |
|
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
141 |
func Fremovexattr(fd int, attr string) (err error) { |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
142 |
nsid, a, err := xattrnamespace(attr) |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
143 |
if err != nil { |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
144 |
return |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
145 |
} |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
146 |
|
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
147 |
err = ExtattrDeleteFd(fd, nsid, a) |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
148 |
return |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
149 |
} |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
150 |
|
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
151 |
func Lremovexattr(link string, attr string) (err error) { |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
152 |
nsid, a, err := xattrnamespace(attr) |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
153 |
if err != nil { |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
154 |
return |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
155 |
} |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
156 |
|
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
157 |
err = ExtattrDeleteLink(link, nsid, a) |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
158 |
return |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
159 |
} |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
160 |
|
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
161 |
func Listxattr(file string, dest []byte) (sz int, err error) { |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
162 |
d := initxattrdest(dest, 0) |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
163 |
destsiz := len(dest) |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
164 |
|
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
165 |
// FreeBSD won't allow you to list xattrs from multiple namespaces |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
166 |
s := 0 |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
167 |
for _, nsid := range [...]int{EXTATTR_NAMESPACE_USER, EXTATTR_NAMESPACE_SYSTEM} { |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
168 |
stmp, e := ExtattrListFile(file, nsid, uintptr(d), destsiz) |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
169 |
|
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
170 |
/* Errors accessing system attrs are ignored so that |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
171 |
* we can implement the Linux-like behavior of omitting errors that |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
172 |
* we don't have read permissions on |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
173 |
* |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
174 |
* Linux will still error if we ask for user attributes on a file that |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
175 |
* we don't have read permissions on, so don't ignore those errors |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
176 |
*/ |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
177 |
if e != nil && e == EPERM && nsid != EXTATTR_NAMESPACE_USER { |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
178 |
continue |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
179 |
} else if e != nil { |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
180 |
return s, e |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
181 |
} |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
182 |
|
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
183 |
s += stmp |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
184 |
destsiz -= s |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
185 |
if destsiz < 0 { |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
186 |
destsiz = 0 |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
187 |
} |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
188 |
d = initxattrdest(dest, s) |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
189 |
} |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
190 |
|
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
191 |
return s, nil |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
192 |
} |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
193 |
|
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
194 |
func Flistxattr(fd int, dest []byte) (sz int, err error) { |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
195 |
d := initxattrdest(dest, 0) |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
196 |
destsiz := len(dest) |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
197 |
|
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
198 |
s := 0 |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
199 |
for _, nsid := range [...]int{EXTATTR_NAMESPACE_USER, EXTATTR_NAMESPACE_SYSTEM} { |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
200 |
stmp, e := ExtattrListFd(fd, nsid, uintptr(d), destsiz) |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
201 |
if e != nil && e == EPERM && nsid != EXTATTR_NAMESPACE_USER { |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
202 |
continue |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
203 |
} else if e != nil { |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
204 |
return s, e |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
205 |
} |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
206 |
|
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
207 |
s += stmp |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
208 |
destsiz -= s |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
209 |
if destsiz < 0 { |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
210 |
destsiz = 0 |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
211 |
} |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
212 |
d = initxattrdest(dest, s) |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
213 |
} |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
214 |
|
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
215 |
return s, nil |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
216 |
} |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
217 |
|
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
218 |
func Llistxattr(link string, dest []byte) (sz int, err error) { |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
219 |
d := initxattrdest(dest, 0) |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
220 |
destsiz := len(dest) |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
221 |
|
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
222 |
s := 0 |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
223 |
for _, nsid := range [...]int{EXTATTR_NAMESPACE_USER, EXTATTR_NAMESPACE_SYSTEM} { |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
224 |
stmp, e := ExtattrListLink(link, nsid, uintptr(d), destsiz) |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
225 |
if e != nil && e == EPERM && nsid != EXTATTR_NAMESPACE_USER { |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
226 |
continue |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
227 |
} else if e != nil { |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
228 |
return s, e |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
229 |
} |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
230 |
|
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
231 |
s += stmp |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
232 |
destsiz -= s |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
233 |
if destsiz < 0 { |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
234 |
destsiz = 0 |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
235 |
} |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
236 |
d = initxattrdest(dest, s) |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
237 |
} |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
238 |
|
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
239 |
return s, nil |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
240 |
} |