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/*
* ZMap Copyright 2013 Regents of the University of Michigan
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not
* use this file except in compliance with the License. You may obtain a copy
* of the License at http://www.apache.org/licenses/LICENSE-2.0
*/
#include "random.h"
#include <stdlib.h>
#include <stdio.h>
#include <stdint.h>
#include <string.h>
#include <errno.h>
#include "logger.h"
#define RANDSRC "/dev/urandom"
int random_bytes(void *dst, size_t n)
{
FILE *f = fopen(RANDSRC, "rb");
if (!f) {
log_fatal("random", "unable to read /dev/urandom: %s",
strerror(errno));
}
size_t r = fread(dst, n, 1, f);
fclose(f);
if (r < 1) {
return 0;
}
return 1;
}
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