xref: /titanic_50/usr/src/test/libc-tests/tests/random/getrandred.c (revision a17dff0dc9d07cb9734943b1f593b856d17776b4)
1*a17dff0dSRobert Mustacchi /*
2*a17dff0dSRobert Mustacchi  * This file and its contents are supplied under the terms of the
3*a17dff0dSRobert Mustacchi  * Common Development and Distribution License ("CDDL"), version 1.0.
4*a17dff0dSRobert Mustacchi  * You may only use this file in accordance with the terms of version
5*a17dff0dSRobert Mustacchi  * 1.0 of the CDDL.
6*a17dff0dSRobert Mustacchi  *
7*a17dff0dSRobert Mustacchi  * A full copy of the text of the CDDL should have accompanied this
8*a17dff0dSRobert Mustacchi  * source.  A copy of the CDDL is also available via the Internet at
9*a17dff0dSRobert Mustacchi  * http://www.illumos.org/license/CDDL.
10*a17dff0dSRobert Mustacchi  */
11*a17dff0dSRobert Mustacchi 
12*a17dff0dSRobert Mustacchi /*
13*a17dff0dSRobert Mustacchi  * Copyright 2015 Joyent, Inc.
14*a17dff0dSRobert Mustacchi  */
15*a17dff0dSRobert Mustacchi 
16*a17dff0dSRobert Mustacchi /*
17*a17dff0dSRobert Mustacchi  * Regression test for illumos#5843.
18*a17dff0dSRobert Mustacchi  */
19*a17dff0dSRobert Mustacchi 
20*a17dff0dSRobert Mustacchi #include <string.h>
21*a17dff0dSRobert Mustacchi #include <stdlib.h>
22*a17dff0dSRobert Mustacchi #include <sys/random.h>
23*a17dff0dSRobert Mustacchi 
24*a17dff0dSRobert Mustacchi #define	NTRIES 5
25*a17dff0dSRobert Mustacchi #define	NOFF	128
26*a17dff0dSRobert Mustacchi #define	NBYTES	223
27*a17dff0dSRobert Mustacchi 
28*a17dff0dSRobert Mustacchi int
main(void)29*a17dff0dSRobert Mustacchi main(void)
30*a17dff0dSRobert Mustacchi {
31*a17dff0dSRobert Mustacchi 	int i;
32*a17dff0dSRobert Mustacchi 	char buf[1024];
33*a17dff0dSRobert Mustacchi 
34*a17dff0dSRobert Mustacchi 	(void) memset(buf, 'a', sizeof (buf));
35*a17dff0dSRobert Mustacchi 
36*a17dff0dSRobert Mustacchi 	/*
37*a17dff0dSRobert Mustacchi 	 * Try to go ahead and corrupt ourselves NTRIES times.
38*a17dff0dSRobert Mustacchi 	 */
39*a17dff0dSRobert Mustacchi 	for (i = 0; i < NTRIES; i++) {
40*a17dff0dSRobert Mustacchi 		(void) getrandom(buf + NOFF, NBYTES, 0);
41*a17dff0dSRobert Mustacchi 	}
42*a17dff0dSRobert Mustacchi 
43*a17dff0dSRobert Mustacchi 	for (i = 0; i < NOFF; i++) {
44*a17dff0dSRobert Mustacchi 		if (buf[i] != 'a')
45*a17dff0dSRobert Mustacchi 			abort();
46*a17dff0dSRobert Mustacchi 	}
47*a17dff0dSRobert Mustacchi 
48*a17dff0dSRobert Mustacchi 	for (i = NBYTES + NOFF; i < sizeof (buf); i++) {
49*a17dff0dSRobert Mustacchi 		if (buf[i] != 'a')
50*a17dff0dSRobert Mustacchi 			abort();
51*a17dff0dSRobert Mustacchi 	}
52*a17dff0dSRobert Mustacchi 
53*a17dff0dSRobert Mustacchi 	return (0);
54*a17dff0dSRobert Mustacchi }
55