RAND(3) BSD Library Functions Manual RAND(3)

NAME
     rraanndd, ssrraanndd, ssrraannddddeevv, rraannddrr - bad random number generator

LLIIBBRRAARRYY
     Standard C Library (libc, -lc)

SYNOPSIS
     ##iinncclluuddee <>

     void
     ssrraanndd(unsigned seed);

     void
     ssrraannddddeevv(void);

     int
     rraanndd(void);

     int
     rraannddrr(unsigned *ctx);

DESCRIPTION
     These interfaces are obsoleted by adm3).
     The rraanndd() function computes a sequence of pseudo-random integers in the
     range of 0 to RANDMAX (as defined by the header file ).

     The ssrraanndd() function sets its argument seed as the seed for a new
     sequence of pseudo-random numbers to be returned by rraanndd().  These
     sequences are repeatable by calling ssrraanndd() with the same seed value.

     If no seed value is provided, the functions are automatically seeded with
     a value of 1.

     The ssrraannddddeevv() function initializes a seed using the random(4) random
     number device which returns good random numbers, suitable for crypto-
     graphic use.

     The rraannddrr() function provides the same functionality as rraanndd().  A
     pointer to the context value ctx must be supplied by the caller.

SEE ALSO
     random(3), random(4)

STANDARDS     The rraanndd() and ssrraanndd() functions conform to ISO/IEC 9899:1990
     (``ISO C90'').

     The rraannddrr() function is as proposed in the POSIX.4a Draft #6 document.

BSD                              May 25, 1999                              BSD