From f5c4671bfbad96bf346bd7e9a21fc4317b4959df Mon Sep 17 00:00:00 2001 From: Indrajith K L Date: Sat, 3 Dec 2022 17:00:20 +0530 Subject: Adds most of the tools --- v_windows/v/old/vlib/crypto/rand/rand_windows.c.v | 25 +++++++++++++++++++++++ 1 file changed, 25 insertions(+) create mode 100644 v_windows/v/old/vlib/crypto/rand/rand_windows.c.v (limited to 'v_windows/v/old/vlib/crypto/rand/rand_windows.c.v') diff --git a/v_windows/v/old/vlib/crypto/rand/rand_windows.c.v b/v_windows/v/old/vlib/crypto/rand/rand_windows.c.v new file mode 100644 index 0000000..075a3ed --- /dev/null +++ b/v_windows/v/old/vlib/crypto/rand/rand_windows.c.v @@ -0,0 +1,25 @@ +// Copyright (c) 2019-2021 Alexander Medvednikov. All rights reserved. +// Use of this source code is governed by an MIT license +// that can be found in the LICENSE file. + +module rand + +#flag windows -Llibraries/bcrypt +#flag windows -lbcrypt +#include + +const ( + status_success = 0x00000000 + bcrypt_use_system_preferred_rng = 0x00000002 +) + +// read returns an array of `bytes_needed` random bytes read from the OS. +pub fn read(bytes_needed int) ?[]byte { + mut buffer := []byte{len: bytes_needed} + // use bcrypt_use_system_preferred_rng because we passed null as algo + status := C.BCryptGenRandom(0, buffer.data, bytes_needed, rand.bcrypt_use_system_preferred_rng) + if status != rand.status_success { + return IError(&ReadError{}) + } + return buffer +} -- cgit v1.2.3