var crypto/rand.altGetRandom

4 uses

	crypto/rand (current package)
		rand_getrandom.go#L29: 	altGetRandom = batched(getRandom, maxGetRandomRead)
		rand_unix.go#L42: var altGetRandom func([]byte) (err error)
		rand_unix.go#L56: 	if altGetRandom != nil && altGetRandom(b) == nil {