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authorngie <ngie@FreeBSD.org>2014-10-01 04:07:17 +0000
committerngie <ngie@FreeBSD.org>2014-10-01 04:07:17 +0000
commit5eef524861e9a8760606f6e9a4605ec7a162108d (patch)
treefe508642deae3a054c714959ab0a9d53234f63e0 /dist/lib/libc/stdlib/t_random.c
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Check in first src/tests snapshot from NetBSD anoncvs
Sources were obtained like so: % export CVSROOT="anoncvs@anoncvs.NetBSD.org:/cvsroot" % cvs -z9 co -D "09/30/2014 20:45" -P src/tests % mv src/tests/* tests/dist/. '*CVS*' has been added to svn:ignore to ease updating periodically from upstream Some line ending issues had to be resolved with test outputs and scripts via dos2unix and by deleting the eol-style property set in usr.bin/sort Discussed with: rpaulo Sponsored by: EMC / Isilon Storage Division
Diffstat (limited to 'dist/lib/libc/stdlib/t_random.c')
-rw-r--r--dist/lib/libc/stdlib/t_random.c82
1 files changed, 82 insertions, 0 deletions
diff --git a/dist/lib/libc/stdlib/t_random.c b/dist/lib/libc/stdlib/t_random.c
new file mode 100644
index 0000000..9a6d21e
--- /dev/null
+++ b/dist/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();
+}
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