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/* ISC license. */
#include <skalibs/sysdeps.h>
#ifdef SKALIBS_HASARC4RANDOM
#include <skalibs/nonposix.h>
#include <stdint.h>
#include <stdlib.h>
#include <skalibs/random.h>
uint32_t random_uint32 (uint32_t n)
{
return arc4random_uniform(n) ;
}
#else
#include <stdint.h>
#include <skalibs/uint32.h>
#include <skalibs/random.h>
uint32_t random_uint32 (uint32_t n)
{
uint32_t min, x ;
if (n < 2) return 0 ;
min = -n % n ;
for (;;)
{
char tmp[4] ;
random_string(tmp, 4) ;
uint32_unpack_big(tmp, &x) ;
if (x >= min) break ;
}
return x % n ;
}
#endif
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