29 lines
547 B
Go
29 lines
547 B
Go
![]() |
// 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 rand
|
||
|
|
||
|
import (
|
||
|
"internal/syscall/unix"
|
||
|
)
|
||
|
|
||
|
func init() {
|
||
|
altGetRandom = getRandomOpenBSD
|
||
|
}
|
||
|
|
||
|
func getRandomOpenBSD(p []byte) (ok bool) {
|
||
|
// getentropy(2) returns a maximum of 256 bytes per call
|
||
|
for i := 0; i < len(p); i += 256 {
|
||
|
end := i + 256
|
||
|
if len(p) < end {
|
||
|
end = len(p)
|
||
|
}
|
||
|
err := unix.GetEntropy(p[i:end])
|
||
|
if err != nil {
|
||
|
return false
|
||
|
}
|
||
|
}
|
||
|
return true
|
||
|
}
|