src/crypto/rand/rand_freebsd.go

// Copyright 2018 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

// maxGetRandomRead is the maximum number of bytes to ask for in one call to the
// getrandom() syscall. In FreeBSD at most 256 bytes will be returned per call.
const maxGetRandomRead = 1 << 8