view src/ploki/random.c @ 6600:6574ac73ed8a

<izabera> ` base64 -d <<< H4sIAAhyqVYCAy2NQQ6CMBRE9z3F+MNCE2zEHQvWXsCdYtLKJxKx39ASMA13F9DVzLzMZGxhJYSWYYptJCd4ScdILPk0u86axqPWeT7RymaRGpa5ox2GgsQhPBiDaVtSY7Gls3kyxDEqGVyKt/EeTYDppHcVgU6CIOvGh+XIuAq2/8DLi9dr2qlaOjRoHGKea32YVCWK7w8BJdFcmvI2IRlS/MKkVRLHy2Z2f7TPyqWgad45/gLSidNX4AAAAA== | zcat > 99
author HackBot
date Thu, 28 Jan 2016 01:46:05 +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);
}