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-rw-r--r--src/crypto/rand/rand_dragonfly.go9
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diff --git a/src/crypto/rand/rand_dragonfly.go b/src/crypto/rand/rand_dragonfly.go
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+// Copyright 2021 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 DragonFlyBSD at most 256 bytes will be returned per call.
+const maxGetRandomRead = 1 << 8