view src/ploki/random.c @ 5330:a5d6333f9e41

<int-e> ` sed \'s/==/!=/\' < bin/CaT > bin/cAt; sed \'s/CaT/cAt/\' < bin/WeLcOmE > bin/wElCoMe; chmod +x bin/cAt bin/wElCoMe
author HackBot
date Sat, 25 Apr 2015 15:25:38 +0000
parents ac0403686959
children
line wrap: on
line source

#include "config.h"
#include "random.h"

#include <stdio.h>
#include <stdlib.h>
#include <time.h>

void randseed(void) {
	unsigned seed;

	seed = time(NULL);
	#if HAVE_DEV_URANDOM_P
	{
		FILE *fp;

		if ((fp = fopen("/dev/urandom", "rb"))) {
			fread(&seed, sizeof seed, 1, fp);
			fclose(fp);
		}
	}
	#endif
	srand(seed);
}

double randval(void) {
	return rand() / (RAND_MAX + 1.0);
}