talos/pkg/startup/rand.go
Andrew Rynhard 90c91807bd refactor: restructure the project layout
This change moves packages into more appropriate places.

Signed-off-by: Andrew Rynhard <andrew@andrewrynhard.com>
2019-08-01 22:19:42 -07:00

26 lines
573 B
Go

/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
package startup
import (
cryptorand "crypto/rand"
"encoding/binary"
"math/rand"
"github.com/pkg/errors"
)
// RandSeed default math/rand PRNG.
func RandSeed() error {
seed := make([]byte, 8)
if _, err := cryptorand.Read(seed); err != nil {
return errors.Wrap(err, "error seeding rand")
}
rand.Seed(int64(binary.LittleEndian.Uint64(seed)))
return nil
}