summaryrefslogtreecommitdiffstats
path: root/include/stdlib.h
blob: f3185069f32ad1431ca4b8fade00fae1472549dd (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
#ifndef __STDLIB_H
#define __STDLIB_H

#include <types.h>

#define RAND_MAX 32767

/* return a pseudo-random integer in the range [0, RAND_MAX] */
unsigned int rand(void);

/* set the seed for rand () */
void srand(unsigned int seed);

/* fill a buffer with pseudo-random data */
void get_random_bytes(void *buf, int len);

static inline u32 random32(void)
{
	u32 ret;

	get_random_bytes(&ret, 4);

	return ret;
}

#endif /* __STDLIB_H */