arduino-esp32/tools/sdk/include/libsodium/sodium/randombytes.h

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#ifndef randombytes_H
#define randombytes_H
#include <stddef.h>
#include <stdint.h>
#include <sys/types.h>
#include "export.h"
#ifdef __cplusplus
# ifdef __GNUC__
# pragma GCC diagnostic ignored "-Wlong-long"
# endif
extern "C" {
#endif
typedef struct randombytes_implementation {
const char *(*implementation_name)(void); /* required */
uint32_t (*random)(void); /* required */
void (*stir)(void); /* optional */
uint32_t (*uniform)(const uint32_t upper_bound); /* optional, a default implementation will be used if NULL */
void (*buf)(void * const buf, const size_t size); /* required */
int (*close)(void); /* optional */
} randombytes_implementation;
#define randombytes_SEEDBYTES 32U
SODIUM_EXPORT
size_t randombytes_seedbytes(void);
SODIUM_EXPORT
void randombytes_buf(void * const buf, const size_t size);
SODIUM_EXPORT
void randombytes_buf_deterministic(void * const buf, const size_t size,
const unsigned char seed[randombytes_SEEDBYTES]);
SODIUM_EXPORT
uint32_t randombytes_random(void);
SODIUM_EXPORT
uint32_t randombytes_uniform(const uint32_t upper_bound);
SODIUM_EXPORT
void randombytes_stir(void);
SODIUM_EXPORT
int randombytes_close(void);
SODIUM_EXPORT
int randombytes_set_implementation(randombytes_implementation *impl);
SODIUM_EXPORT
const char *randombytes_implementation_name(void);
/* -- NaCl compatibility interface -- */
SODIUM_EXPORT
void randombytes(unsigned char * const buf, const unsigned long long buf_len);
#ifdef __cplusplus
}
#endif
#endif