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Source file src/internal/syscall/unix/getentropy_openbsd.go

Documentation: internal/syscall/unix

  // Copyright 2016 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"
  )
  
  // getentropy(2)'s syscall number, from /usr/src/sys/kern/syscalls.master
  const entropyTrap uintptr = 7
  
  // GetEntropy calls the OpenBSD getentropy system call.
  func GetEntropy(p []byte) error {
  	_, _, errno := syscall.Syscall(entropyTrap,
  		uintptr(unsafe.Pointer(&p[0])),
  		uintptr(len(p)),
  		0)
  	if errno != 0 {
  		return errno
  	}
  	return nil
  }
  

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