You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
42 lines
1.0 KiB
42 lines
1.0 KiB
// 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. |
|
|
|
package unix |
|
|
|
import ( |
|
"syscall" |
|
"unsafe" |
|
) |
|
|
|
// Unveil implements the unveil syscall. |
|
// For more information see unveil(2). |
|
// Note that the special case of blocking further |
|
// unveil calls is handled by UnveilBlock. |
|
func Unveil(path string, flags string) error { |
|
pathPtr, err := syscall.BytePtrFromString(path) |
|
if err != nil { |
|
return err |
|
} |
|
flagsPtr, err := syscall.BytePtrFromString(flags) |
|
if err != nil { |
|
return err |
|
} |
|
_, _, e := syscall.Syscall(SYS_UNVEIL, uintptr(unsafe.Pointer(pathPtr)), uintptr(unsafe.Pointer(flagsPtr)), 0) |
|
if e != 0 { |
|
return e |
|
} |
|
return nil |
|
} |
|
|
|
// UnveilBlock blocks future unveil calls. |
|
// For more information see unveil(2). |
|
func UnveilBlock() error { |
|
// Both pointers must be nil. |
|
var pathUnsafe, flagsUnsafe unsafe.Pointer |
|
_, _, e := syscall.Syscall(SYS_UNVEIL, uintptr(pathUnsafe), uintptr(flagsUnsafe), 0) |
|
if e != 0 { |
|
return e |
|
} |
|
return nil |
|
}
|
|
|