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get_random_bytes(9r)					  get_random_bytes(9r)

NAME
       get_random_bytes	 -  General:  Returns  the  requested number of random
       bytes and stores them in a buffer.

SYNOPSIS
       void get_random_bytes(
	       void *buf,
	       int nbytes );

ARGUMENTS
       Specifies the address of the buffer in which the requested random bytes
       are stored.  Specifies the number of random bytes.

DESCRIPTION
       The  get_random_bytes()	routine returns the requested number of random
       bytes and stores them in a buffer. This routine is for  kernel  modules
       that cannot be in a wait state.

RETURN VALUES
       Upon  successful completion, get_random_bytes() returns a buffer filled
       with random bytes.

       ************Fran, what does it return upon failure, efault?

EXAMPLE
       The following example shows how to use the  get_random_bytes()  routine
       to generate a random DCE UUID:

       unsigned	 char uuid[16]; get_random_bytes(uuid, sizeof (uuid)); uuid[6]
       = (uuid[6] & 0x0f) | 0x40;     /* UUID version 4 -- random  genmeration
       */ uuid[8] = (uuid[8] & 0x3f) | 0x80;	 /* UUID variant DCE */

       ************Fran, what does DCE UUID stand for?

SEE ALSO
       Routines: get_random_bytes_wait(9r)

       Files: random(4) and urandom(4)

							  get_random_bytes(9r)

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