29 lines
619 B
C
29 lines
619 B
C
/*
|
|
* 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 <assert.h>
|
|
|
|
#define RANDSRC "/dev/urandom"
|
|
|
|
int random_bytes(void *dst, size_t n)
|
|
{
|
|
FILE *f = fopen(RANDSRC, "rb");
|
|
assert(f);
|
|
size_t r = fread(dst, n, 1, f);
|
|
fclose(f);
|
|
if (r < 1) {
|
|
return 0;
|
|
}
|
|
return 1;
|
|
}
|