1 // Copyright 2016 The Go Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style 3 // license that can be found in the LICENSE file. 4 5 // +build openbsd 6 // +build 386 amd64 arm 7 8 package unix 9 10 import ( 11 "syscall" 12 "unsafe" 13 ) 14 15 const ( 16 _SYS_PLEDGE = 108 17 ) 18 19 // Pledge implements the pledge syscall. For more information see pledge(2). 20 func Pledge(promises string, paths []string) error { 21 promisesPtr, err := syscall.BytePtrFromString(promises) 22 if err != nil { 23 return err 24 } 25 promisesUnsafe, pathsUnsafe := unsafe.Pointer(promisesPtr), unsafe.Pointer(nil) 26 if paths != nil { 27 var pathsPtr []*byte 28 if pathsPtr, err = syscall.SlicePtrFromStrings(paths); err != nil { 29 return err 30 } 31 pathsUnsafe = unsafe.Pointer(&pathsPtr[0]) 32 } 33 _, _, e := syscall.Syscall(_SYS_PLEDGE, uintptr(promisesUnsafe), uintptr(pathsUnsafe), 0) 34 if e != 0 { 35 return e 36 } 37 return nil 38 } 39
