Files
sys/unix/unveil_openbsd.go
Joel Sing 82968946f5 unix: remove arch specific build for openbsd_pledge.go
The pledge code is platform specific, but in no way architecture specific.
As such, drop the +build rule that ties it to specific architectures.

While here also rename openbsd_pledge.go and openbsd_unveil.go so we can
drop the openbsd specific build tags.

Change-Id: I7d83796c8f9b46afe2a6790620205df5f7f3d738
Reviewed-on: https://go-review.googlesource.com/c/sys/+/173677
Reviewed-by: Elias Naur <mail@eliasnaur.com>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Elias Naur <mail@eliasnaur.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2019-04-24 16:00:12 +00:00

43 lines
1.0 KiB
Go

// 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
}