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Command: RAND_load_file | Section: 3 | Source: OpenBSD | File: RAND_load_file.3
RAND_LOAD_FILE(3) FreeBSD Library Functions Manual RAND_LOAD_FILE(3)
NAME
RAND_file_name, RAND_load_file, RAND_write_file - PRNG seed file
SYNOPSIS
#include <openssl/rand.h>
const char *
RAND_file_name(char *buf, size_t num);
int
RAND_load_file(const char *filename, long max_bytes);
int
RAND_write_file(const char *filename);
DESCRIPTION
RAND_file_name() returns a default path for the random seed file. buf
points to a buffer of size num in which to store the filename. If num is
too small for the path name, an error occurs.
RAND_load_file() used to allow for the state of the random number
generator to be controlled by external sources. It is kept for ABI
compatibility but is no longer functional, and should not be used in new
programs.
RAND_write_file() writes a number of random bytes (currently 1024) to
file filename.
RETURN VALUES
RAND_load_file() returns max_bytes, or a bogus positive value if
max_bytes is -1.
RAND_write_file() returns the number of bytes written, or a number less
than or equal to 1 if an error occurs.
RAND_file_name() returns a pointer to buf on success or NULL on error.
HISTORY
RAND_load_file(), RAND_write_file(), and RAND_file_name() first appeared
in SSLeay 0.5.1 and have been available since OpenBSD 2.4.
FreeBSD 14.1-RELEASE-p8 March 27, 2018 FreeBSD 14.1-RELEASE-p8