1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
|
// Copyright 2018 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build linux || openbsd || netbsd || dragonfly
// +build linux openbsd netbsd dragonfly
package unix
import (
"syscall"
"unsafe"
)
func Unlinkat(dirfd int, path string, flags int) error {
var p *byte
p, err := syscall.BytePtrFromString(path)
if err != nil {
return err
}
_, _, errno := syscall.Syscall(unlinkatTrap, uintptr(dirfd), uintptr(unsafe.Pointer(p)), uintptr(flags))
if errno != 0 {
return errno
}
return nil
}
func Openat(dirfd int, path string, flags int, perm uint32) (int, error) {
var p *byte
p, err := syscall.BytePtrFromString(path)
if err != nil {
return 0, err
}
fd, _, errno := syscall.Syscall6(openatTrap, uintptr(dirfd), uintptr(unsafe.Pointer(p)), uintptr(flags), uintptr(perm), 0, 0)
if errno != 0 {
return 0, errno
}
return int(fd), nil
}
func Fstatat(dirfd int, path string, stat *syscall.Stat_t, flags int) error {
var p *byte
p, err := syscall.BytePtrFromString(path)
if err != nil {
return err
}
_, _, errno := syscall.Syscall6(fstatatTrap, uintptr(dirfd), uintptr(unsafe.Pointer(p)), uintptr(unsafe.Pointer(stat)), uintptr(flags), 0, 0)
if errno != 0 {
return errno
}
return nil
}
|
