github.com/jgarto/itcv@v0.0.0-20180826224514-4eea09c1aa0d/_vendor/src/golang.org/x/sys/unix/openbsd_pledge.go (about)

     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  }