GSP
Quick Navigator

Search Site

Unix VPS
A - Starter
B - Basic
C - Preferred
D - Commercial
MPS - Dedicated
Previous VPSs
* Sign Up! *

Support
Contact Us
Online Help
Handbooks
Domain Status
Man Pages

FAQ
Virtual Servers
Pricing
Billing
Technical

Network
Facilities
Connectivity
Topology Map

Miscellaneous
Server Agreement
Year 2038
Credits
 

USA Flag

 

 

Man Pages


Manual Reference Pages  -  RAND_LOAD_FILE (3)

.ds Aq ’

NAME

RAND_load_file, RAND_write_file, RAND_file_name - PRNG seed file

CONTENTS

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() generates a default path for the random seed file. buf points to a buffer of size 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 num is too small for the path name, an error occurs.

RAND_load_file() reads a number of bytes from file filename and adds them to the PRNG. If max_bytes is non-negative, up to to max_bytes are read; starting with OpenSSL 0.9.5, if max_bytes is -1, the complete file is read.

RAND_write_file() writes a number of random bytes (currently 1024) to file filename which can be used to initialize the PRNG by calling RAND_load_file() in a later session.

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 buf on success, and NULL on error.

SEE ALSO

rand(3), RAND_add(3), RAND_cleanup(3)

HISTORY

RAND_load_file(), RAND_write_file() and RAND_file_name() are available in all versions of SSLeay and OpenSSL.
Search for    or go to Top of page |  Section 3 |  Main Index


1.0.1s RAND_LOAD_FILE (3) 2016-03-01

Powered by GSP Visit the GSP FreeBSD Man Page Interface.
Output converted with manServer 1.07.