src/basic/random-util.h

   1 /* SPDX-License-Identifier: LGPL-2.1+ */
   2 #pragma once
   3
   4 #include <stdbool.h>
   5 #include <stddef.h>
   6 #include <stdint.h>
   7
   8 int acquire_random_bytes(void *p, size_t n, bool high_quality_required);
   9 void pseudorandom_bytes(void *p, size_t n);
  10 void random_bytes(void *p, size_t n);
  11 void initialize_srand(void);
  12
  13 static inline uint64_t random_u64(void) {
  14         uint64_t u;
  15         random_bytes(&u, sizeof(u));
  16         return u;
  17 }
  18
  19 static inline uint32_t random_u32(void) {
  20         uint32_t u;
  21         random_bytes(&u, sizeof(u));
  22         return u;
  23 }