Current File : //proc/self/root/data/old/usr/lib/golang/src/crypto/rand/rand_getentropy.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.
//go:build (darwin && !ios) || openbsd
package rand
import (
"internal/syscall/unix"
)
func init() {
altGetRandom = getEntropy
}
func getEntropy(p []byte) error {
// 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 err
}
}
return nil
}
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