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[src/trunk]: src/tests/lib/libc/sys Add new minherit test.
details: https://anonhg.NetBSD.org/src/rev/e1f564b377fb
branches: trunk
changeset: 330692:e1f564b377fb
user: christos <christos%NetBSD.org@localhost>
date: Fri Jul 18 12:34:52 2014 +0000
description:
Add new minherit test.
diffstat:
tests/lib/libc/sys/Makefile | 3 +-
tests/lib/libc/sys/t_minherit.c | 200 ++++++++++++++++++++++++++++++++++++++++
2 files changed, 202 insertions(+), 1 deletions(-)
diffs (221 lines):
diff -r cdc924ac7374 -r e1f564b377fb tests/lib/libc/sys/Makefile
--- a/tests/lib/libc/sys/Makefile Fri Jul 18 12:19:09 2014 +0000
+++ b/tests/lib/libc/sys/Makefile Fri Jul 18 12:34:52 2014 +0000
@@ -1,4 +1,4 @@
-# $NetBSD: Makefile,v 1.35 2014/06/10 04:28:39 he Exp $
+# $NetBSD: Makefile,v 1.36 2014/07/18 12:34:52 christos Exp $
MKMAN= no
@@ -30,6 +30,7 @@
TESTS_C+= t_listen
TESTS_C+= t_lwp_ctl
TESTS_C+= t_lwp_create
+TESTS_C+= t_minherit
TESTS_C+= t_mincore
TESTS_C+= t_mkdir
TESTS_C+= t_mkfifo
diff -r cdc924ac7374 -r e1f564b377fb tests/lib/libc/sys/t_minherit.c
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/tests/lib/libc/sys/t_minherit.c Fri Jul 18 12:34:52 2014 +0000
@@ -0,0 +1,200 @@
+/* $NetBSD: t_minherit.c,v 1.1 2014/07/18 12:34:52 christos Exp $ */
+
+/*-
+ * Copyright (c) 2014 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by Christos Zoulas
+ *
+ * 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_minherit.c,v 1.1 2014/07/18 12:34:52 christos Exp $");
+
+#include <sys/param.h>
+#include <sys/mman.h>
+#include <sys/sysctl.h>
+#include <sys/wait.h>
+
+#include <errno.h>
+#include <fcntl.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#include <atf-c.h>
+
+static long page;
+
+static void *
+makemap(int v, int f) {
+ void *map = mmap(NULL, page, PROT_READ|PROT_WRITE,
+ MAP_SHARED|MAP_ANON, -1, 0);
+ ATF_REQUIRE(map != MAP_FAILED);
+ memset(map, v, page);
+ if (f != 666)
+ ATF_REQUIRE(minherit(map, page, f) == 0);
+ else
+ ATF_REQUIRE(minherit(map, page, f) == -1);
+ return map;
+}
+
+ATF_TC(minherit_copy);
+ATF_TC_HEAD(minherit_copy, tc)
+{
+ atf_tc_set_md_var(tc, "descr",
+ "Test for MAP_INHERIT_COPY from minherit(2)");
+}
+
+ATF_TC_BODY(minherit_copy, tc)
+{
+ void *map1 = makemap(1, MAP_INHERIT_COPY);
+ void *map2 = makemap(1, MAP_INHERIT_COPY);
+ switch (fork()) {
+ default:
+ ATF_REQUIRE(wait(NULL) != -1);
+ ATF_REQUIRE(memcmp(map1, map2, page) == 0);
+ break;
+ case -1:
+ ATF_REQUIRE(0);
+ break;
+ case 0:
+ ATF_REQUIRE(memcmp(map1, map2, page) == 0);
+ memset(map1, 0, page);
+ exit(0);
+ }
+}
+
+ATF_TC(minherit_share);
+ATF_TC_HEAD(minherit_share, tc)
+{
+ atf_tc_set_md_var(tc, "descr",
+ "Test for MAP_INHERIT_SHARE from minherit(2)");
+}
+
+ATF_TC_BODY(minherit_share, tc)
+{
+ void *map1 = makemap(1, MAP_INHERIT_SHARE);
+ void *map2 = makemap(1, MAP_INHERIT_SHARE);
+
+ switch (fork()) {
+ default:
+ ATF_REQUIRE(wait(NULL) != -1);
+ memset(map2, 0, page);
+ ATF_REQUIRE(memcmp(map1, map2, page) == 0);
+ break;
+ case -1:
+ ATF_REQUIRE(0);
+ break;
+ case 0:
+ ATF_REQUIRE(memcmp(map1, map2, page) == 0);
+ memset(map1, 0, page);
+ exit(0);
+ }
+}
+
+static void
+segv(int n) {
+ _exit(n);
+}
+
+ATF_TC(minherit_none);
+ATF_TC_HEAD(minherit_none, tc)
+{
+ atf_tc_set_md_var(tc, "descr",
+ "Test for MAP_INHERIT_NONE from minherit(2)");
+}
+
+ATF_TC_BODY(minherit_none, tc)
+{
+ void *map1 = makemap(0, MAP_INHERIT_NONE);
+ int status;
+
+ switch (fork()) {
+ default:
+ ATF_REQUIRE(wait(&status) != -1);
+ ATF_REQUIRE(WEXITSTATUS(status) == SIGSEGV);
+ break;
+ case -1:
+ ATF_REQUIRE(0);
+ break;
+ case 0:
+ ATF_REQUIRE(signal(SIGSEGV, segv) != SIG_ERR);
+ memset(map1, 0, page);
+ exit(0);
+ }
+}
+
+ATF_TC(minherit_zero);
+ATF_TC_HEAD(minherit_zero, tc)
+{
+ atf_tc_set_md_var(tc, "descr",
+ "Test for MAP_INHERIT_ZERO from minherit(2)");
+}
+
+ATF_TC_BODY(minherit_zero, tc)
+{
+ void *map1 = makemap(1, MAP_INHERIT_ZERO);
+ void *map2 = makemap(0, MAP_INHERIT_SHARE);
+
+ switch (fork()) {
+ default:
+ ATF_REQUIRE(wait(NULL) != -1);
+ memset(map2, 1, page);
+ ATF_REQUIRE(memcmp(map1, map2, page) == 0);
+ break;
+ case -1:
+ ATF_REQUIRE(0);
+ break;
+ case 0:
+ ATF_REQUIRE(memcmp(map1, map2, page) == 0);
+ memset(map1, 2, page);
+ exit(0);
+ }
+}
+
+ATF_TC(minherit_bad);
+ATF_TC_HEAD(minherit_bad, tc)
+{
+ atf_tc_set_md_var(tc, "descr",
+ "Test for bad minherit(2)");
+}
+
+ATF_TC_BODY(minherit_bad, tc)
+{
+ (void)makemap(0, 666);
+}
+
+ATF_TP_ADD_TCS(tp)
+{
+ page = sysconf(_SC_PAGESIZE);
+ ATF_REQUIRE(page >= 0);
+
+ ATF_TP_ADD_TC(tp, minherit_copy);
+ ATF_TP_ADD_TC(tp, minherit_share);
+ ATF_TP_ADD_TC(tp, minherit_none);
+ ATF_TP_ADD_TC(tp, minherit_zero);
+ ATF_TP_ADD_TC(tp, minherit_bad);
+
+ return atf_no_error();
+}
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