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author | ngie <ngie@FreeBSD.org> | 2014-10-02 23:26:49 +0000 |
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committer | ngie <ngie@FreeBSD.org> | 2014-10-02 23:26:49 +0000 |
commit | 3f09b8d0af642c2aeb96a4d667cefb7fe3bce443 (patch) | |
tree | 544932e2a2c5a5a202b752beefba0b3e327b3858 /contrib/netbsd-tests/lib/libc/stdlib/t_random.c | |
parent | b941fec92da62b0eab650295f4e8a381dbbc04b4 (diff) | |
parent | e1f2d32c0e0678782c353c48364cddedfae58b0a (diff) | |
download | FreeBSD-src-3f09b8d0af642c2aeb96a4d667cefb7fe3bce443.zip FreeBSD-src-3f09b8d0af642c2aeb96a4d667cefb7fe3bce443.tar.gz |
Import the NetBSD test suite from ^/vendor/NetBSD/tests/09.30.2014_20.45 ,
minus the vendor Makefiles
Provide directions for how to bootstrap the vendor sources in
FREEBSD-upgrade
MFC after 2 weeks
Discussed with: rpaulo
Sponsored by: EMC / Isilon Storage Division
Diffstat (limited to 'contrib/netbsd-tests/lib/libc/stdlib/t_random.c')
-rw-r--r-- | contrib/netbsd-tests/lib/libc/stdlib/t_random.c | 82 |
1 files changed, 82 insertions, 0 deletions
diff --git a/contrib/netbsd-tests/lib/libc/stdlib/t_random.c b/contrib/netbsd-tests/lib/libc/stdlib/t_random.c new file mode 100644 index 0000000..9a6d21e --- /dev/null +++ b/contrib/netbsd-tests/lib/libc/stdlib/t_random.c @@ -0,0 +1,82 @@ +/* $NetBSD: t_random.c,v 1.3 2012/03/29 08:56:06 jruoho Exp $ */ + +/*- + * Copyright (c) 2012 The NetBSD Foundation, Inc. + * All rights reserved. + * + * This code is derived from software contributed to The NetBSD Foundation + * by Jukka Ruohonen. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS + * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED + * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS + * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ +#include <sys/cdefs.h> +__RCSID("$NetBSD: t_random.c,v 1.3 2012/03/29 08:56:06 jruoho Exp $"); + +#include <atf-c.h> +#include <stdio.h> +#include <stdlib.h> + +/* + * TODO: Add some general RNG tests (cf. the famous "diehard" tests?). + */ + +ATF_TC(random_same); +ATF_TC_HEAD(random_same, tc) +{ + atf_tc_set_md_var(tc, "descr", + "Test that random(3) does not always return the same " + "value when the seed is initialized to zero"); +} + +#define MAX_ITER 10 + +ATF_TC_BODY(random_same, tc) +{ + long buf[MAX_ITER]; + size_t i, j; + + /* + * See CVE-2012-1577. + */ + srandom(0); + + for (i = 0; i < __arraycount(buf); i++) { + + buf[i] = random(); + + for (j = 0; j < i; j++) { + + (void)fprintf(stderr, "i = %zu, j = %zu: " + "%ld vs. %ld\n", i, j, buf[i], buf[j]); + + ATF_CHECK(buf[i] != buf[j]); + } + } +} + +ATF_TP_ADD_TCS(tp) +{ + + ATF_TP_ADD_TC(tp, random_same); + + return atf_no_error(); +} |