RAND_ADD(3)                Library Functions Manual                RAND_ADD(3)

NAME
     RAND_add, RAND_cleanup, RAND_poll, RAND_seed, RAND_status - manipulate
     the PRNG state

SYNOPSIS
     #include <openssl/rand.h>

     void
     RAND_add(const void *buf, int num, double entropy);

     void
     RAND_cleanup(void);

     int
     RAND_poll(void);

     void
     RAND_seed(const void *buf, int num);

     int
     RAND_status(void);

DESCRIPTION
     These functions used to allow for the state of the random number
     generator to be controlled by external sources.

     They are kept for ABI compatibility but are no longer functional, and
     should not be used in new programs.

RETURN VALUES
     RAND_poll() and RAND_status() always return 1.

HISTORY
     RAND_cleanup() and RAND_seed() first appeared in SSLeay 0.5.1 and have
     been available since OpenBSD 2.4.

     RAND_add() and RAND_status() first appeared in OpenSSL 0.9.5 and have
     been available since OpenBSD 2.7.

     RAND_poll() first appeared in OpenSSL 0.9.6 and has been available since
     OpenBSD 2.9.

Linux 6.8.7-arch1-1             March 27, 2018             Linux 6.8.7-arch1-1