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/* SPDX-License-Identifier: GPL-3.0-or-later
* Copyright © 2022-2026 The TokTok team.
*/
#include "os_random.h"
#include <sodium.h>
#include <stdbool.h>
#include "attributes.h"
#include "ccompat.h"
#include "rng.h"
static void os_random_bytes(void *_Nonnull self, uint8_t *_Nonnull bytes, uint32_t length)
{
randombytes(bytes, length);
}
static uint32_t os_random_uniform(void *_Nonnull self, uint32_t upper_bound)
{
return randombytes_uniform(upper_bound);
}
static const Random_Funcs os_random_funcs = {
os_random_bytes,
os_random_uniform,
};
const Random os_random_obj = {&os_random_funcs};
const Random *os_random(void)
{
#ifdef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION
if ((true)) {
return nullptr;
}
#endif /* FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION */
// It is safe to call this function more than once and from different
// threads -- subsequent calls won't have any effects.
if (sodium_init() == -1) {
return nullptr;
}
return &os_random_obj;
}
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