randombytes.h

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#ifndef randombytes_H
#define randombytes_H
 
#include <sys/types.h>
 
#include <stddef.h>
#include <stdint.h>
 
#include "export.h"
 
#ifdef __cplusplus
# if __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;
 
SODIUM_EXPORT
void randombytes_buf(void * const buf, const size_t size);
 
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