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-=pod
-
-=head1 NAME
-
-RAND_load_file, RAND_write_file, RAND_file_name - PRNG seed file
-
-=head1 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);
-
-=head1 DESCRIPTION
-
-RAND_file_name() generates a default path for the random seed
-file. B<buf> points to a buffer of size B<num> in which to store the
-filename. The seed file is $RANDFILE if that environment variable is
-set, $HOME/.rnd otherwise. If $HOME is not set either, or B<num> is
-too small for the path name, an error occurs.
-
-RAND_load_file() reads a number of bytes from file B<filename> and
-adds them to the PRNG. If B<max_bytes> is non-negative,
-up to to B<max_bytes> are read; starting with OpenSSL 0.9.5,
-if B<max_bytes> is -1, the complete file is read.
-
-RAND_write_file() writes a number of random bytes (currently 1024) to
-file B<filename> which can be used to initialize the PRNG by calling
-RAND_load_file() in a later session.
-
-=head1 RETURN VALUES
-
-RAND_load_file() returns the number of bytes read.
-
-RAND_write_file() returns the number of bytes written, and -1 if the
-bytes written were generated without appropriate seed.
-
-RAND_file_name() returns a pointer to B<buf> on success, and NULL on
-error.
-
-=head1 SEE ALSO
-
-L<rand(3)|rand(3)>, L<RAND_add(3)|RAND_add(3)>, L<RAND_cleanup(3)|RAND_cleanup(3)>
-
-=head1 HISTORY
-
-RAND_load_file(), RAND_write_file() and RAND_file_name() are available in
-all versions of SSLeay and OpenSSL.
-
-=cut