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crypt: implement crypto.rand.read/1 for OpenBSD and FreeBSD (#15437)

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John 2022-08-17 00:41:27 -04:00 committed by GitHub
parent 8736f26a1c
commit d41b2be3a7
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16
vlib/crypto/rand/rand_freebsd.c.v Normal file
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// Copyright (c) 2022 John Lloyd. All rights reserved.
// Use of this source code is governed by an MIT license
// that can be found in the LICENSE file.
module rand
#include <stdlib.h>
fn C.arc4random_buf(p &byte, n usize)
// read returns an array of `bytes_needed` random bytes read from the OS.
pub fn read(bytes_needed int) ?[]u8 {
mut buffer := unsafe { malloc_noscan(bytes_needed) }
C.arc4random_buf(buffer, bytes_needed)
return unsafe { buffer.vbytes(bytes_needed) }
}

16
vlib/crypto/rand/rand_openbsd.c.v Normal file
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// Copyright (c) 2022 John Lloyd. All rights reserved.
// Use of this source code is governed by an MIT license
// that can be found in the LICENSE file.
module rand
#include <stdlib.h>
fn C.arc4random_buf(p &byte, n usize)
// read returns an array of `bytes_needed` random bytes read from the OS.
pub fn read(bytes_needed int) ?[]u8 {
mut buffer := unsafe { malloc_noscan(bytes_needed) }
C.arc4random_buf(buffer, bytes_needed)
return unsafe { buffer.vbytes(bytes_needed) }
}