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/* ISC license. */
#include <skalibs/sysdeps.h>
#if defined(SKALIBS_HASARC4RANDOM)
#include <skalibs/nonposix.h>
#include <stdlib.h>
#include <skalibs/random.h>
void random_buf_early (char *s, size_t n)
{
arc4random_buf(s, n) ;
}
#elif defined(SKALIBS_HASGETRANDOM) && defined(SKALIBS_HASGRNDINSECURE)
#include <errno.h>
#include <sys/random.h>
#include <skalibs/random.h>
void random_buf_early (char *s, size_t n)
{
static int broken = 0 ;
if (broken) goto bleh ;
while (n)
{
ssize_t r = getrandom(s, n, GRND_INSECURE) ;
if (r == -1)
{
if (errno != EINTR) goto breakit ;
else continue ;
}
s += r ;
n -= r ;
}
return ;
breakit:
broken = 1 ;
bleh:
random_devurandom(s, n) ;
}
#elif defined(SKALIBS_HASDEVURANDOM)
#include <skalibs/random.h>
void random_buf_early (char *s, size_t n)
{
random_devurandom(s, n) ;
}
#else
#include <skalibs/surf.h>
#include <skalibs/random.h>
void random_buf_early (char *s, size_t n)
{
autosurf(s, n) ;
}
#endif
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