24 lines
517 B
Go
24 lines
517 B
Go
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// Copyright 2009 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package runtime
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import (
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"unsafe"
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)
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var urandom_dev = []byte("/dev/urandom\x00")
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func getRandomData(r []byte) {
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if startupRandomData != nil {
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n := copy(r, startupRandomData)
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extendRandom(r, n)
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return
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}
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fd := open(&urandom_dev[0], 0 /* O_RDONLY */, 0)
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n := read(fd, unsafe.Pointer(&r[0]), int32(len(r)))
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closefd(fd)
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extendRandom(r, int(n))
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}
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