Import NetBSD system call regression tests. They were written with

ATF (Automated Testing Framework), so we use a small wrapper to map 
it to our bsd.regress.mk framework.  Only half of the 80 NetBSD
tests have been taken, the others need more work to adapt.  Of them 
34 syscall tests pass.
Moritz Buhl ported the tests to OpenBSD.

1 files changed, 203 insertions, 0 deletions

diff --git a/src/regress/lib/libc/sys/t_pipe2.c b/src/regress/lib/libc/sys/t_pipe2.c
new file mode 100644
index 0000000000..4964be14ce
--- /dev/null
+++ b/src/regress/lib/libc/sys/t_pipe2.c
@@ -0,0 +1,203 @@
+/*      $OpenBSD: t_pipe2.c,v 1.1.1.1 2019/11/19 19:57:04 bluhm Exp $   */
+/* $NetBSD: t_pipe2.c,v 1.9 2017/01/13 21:19:45 christos Exp $ */
+
+/*-
+ * Copyright (c) 2011 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.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *        This product includes software developed by the NetBSD
+ *        Foundation, Inc. and its contributors.
+ * 4. Neither the name of The NetBSD Foundation nor the names of its
+ *    contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * 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 "macros.h"
+
+#include <sys/cdefs.h>
+__RCSID("$NetBSD: t_pipe2.c,v 1.9 2017/01/13 21:19:45 christos Exp $");
+
+#include "atf-c.h"
+#include <fcntl.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <errno.h>
+#include <sys/resource.h>
+
+static void
+run(int flags)
+{
+        int fd[2], i;
+
+        while ((i = open("/", O_RDONLY)) < 3)
+                ATF_REQUIRE(i != -1);
+
+        ATF_REQUIRE_MSG(closefrom(3) != -1, "closefrom failed: %s",
+            strerror(errno));
+
+        ATF_REQUIRE(pipe2(fd, flags) == 0);
+
+        ATF_REQUIRE(fd[0] == 3);
+        ATF_REQUIRE(fd[1] == 4);
+
+        if (flags & O_CLOEXEC) {
+                ATF_REQUIRE((fcntl(fd[0], F_GETFD) & FD_CLOEXEC) != 0);
+                ATF_REQUIRE((fcntl(fd[1], F_GETFD) & FD_CLOEXEC) != 0);
+        } else {
+                ATF_REQUIRE((fcntl(fd[0], F_GETFD) & FD_CLOEXEC) == 0);
+                ATF_REQUIRE((fcntl(fd[1], F_GETFD) & FD_CLOEXEC) == 0);
+        }
+
+        if (flags & O_NONBLOCK) {
+                ATF_REQUIRE((fcntl(fd[0], F_GETFL) & O_NONBLOCK) != 0);
+                ATF_REQUIRE((fcntl(fd[1], F_GETFL) & O_NONBLOCK) != 0);
+        } else {
+                ATF_REQUIRE((fcntl(fd[0], F_GETFL) & O_NONBLOCK) == 0);
+                ATF_REQUIRE((fcntl(fd[1], F_GETFL) & O_NONBLOCK) == 0);
+        }
+
+        /*
+         * Adjusted for OpenBSD, not available
+         * if (flags & O_NOSIGPIPE) {
+         *      ATF_REQUIRE(fcntl(fd[0], F_GETNOSIGPIPE) != 0);
+         *      ATF_REQUIRE(fcntl(fd[1], F_GETNOSIGPIPE) != 0);
+         *} else {
+         *      ATF_REQUIRE(fcntl(fd[0], F_GETNOSIGPIPE) == 0);
+         *      ATF_REQUIRE(fcntl(fd[1], F_GETNOSIGPIPE) == 0);
+         *}
+         */
+
+        ATF_REQUIRE(close(fd[0]) != -1);
+        ATF_REQUIRE(close(fd[1]) != -1);
+}
+
+ATF_TC(pipe2_basic);
+ATF_TC_HEAD(pipe2_basic, tc)
+{
+        atf_tc_set_md_var(tc, "descr", "A basic test of pipe2(2)");
+}
+
+ATF_TC_BODY(pipe2_basic, tc)
+{
+        run(0);
+}
+
+ATF_TC(pipe2_consume);
+ATF_TC_HEAD(pipe2_consume, tc)
+{
+        atf_tc_set_md_var(tc, "descr", "Test that consuming file descriptors "
+            "with pipe2(2) does not crash the system (PR kern/46457)");
+}
+
+ATF_TC_BODY(pipe2_consume, tc)
+{
+        struct rlimit rl;
+        int err, filedes[2];
+        int old;
+
+        ATF_REQUIRE_MSG(closefrom(4) != -1, "closefrom failed: %s",
+            strerror(errno));
+
+        err = getrlimit(RLIMIT_NOFILE, &rl);
+        ATF_REQUIRE(err == 0);
+        /*
+         * The heart of this test is to run against the number of open
+         * file descriptor limit in the middle of a pipe2() call - i.e.
+         * before the call only a single descriptor may be openend.
+         */
+        old = rl.rlim_cur;
+        rl.rlim_cur = 4;
+        err = setrlimit(RLIMIT_NOFILE, &rl);
+        ATF_REQUIRE(err == 0);
+
+        err = pipe2(filedes, O_CLOEXEC);
+        ATF_REQUIRE(err == -1);
+        rl.rlim_cur = old;
+        err = setrlimit(RLIMIT_NOFILE, &rl);
+}
+
+ATF_TC(pipe2_nonblock);
+ATF_TC_HEAD(pipe2_nonblock, tc)
+{
+        atf_tc_set_md_var(tc, "descr", "A non-blocking test of pipe2(2)");
+}
+
+ATF_TC_BODY(pipe2_nonblock, tc)
+{
+        run(O_NONBLOCK);
+}
+
+ATF_TC(pipe2_cloexec);
+ATF_TC_HEAD(pipe2_cloexec, tc)
+{
+        atf_tc_set_md_var(tc, "descr", "A close-on-exec test of pipe2(2)");
+}
+
+ATF_TC_BODY(pipe2_cloexec, tc)
+{
+        run(O_CLOEXEC);
+}
+
+ATF_TC(pipe2_nosigpipe);
+ATF_TC_HEAD(pipe2_nosigpipe, tc)
+{
+        atf_tc_set_md_var(tc, "descr", "A no sigpipe test of pipe2(2)");
+}
+
+ATF_TC_BODY(pipe2_nosigpipe, tc)
+{
+        run(O_NOSIGPIPE);
+}
+
+ATF_TC(pipe2_einval);
+ATF_TC_HEAD(pipe2_einval, tc)
+{
+        atf_tc_set_md_var(tc, "descr", "A error check of pipe2(2)");
+}
+
+ATF_TC_BODY(pipe2_einval, tc)
+{
+        int fd[2];
+        ATF_REQUIRE_ERRNO(EINVAL, pipe2(fd, O_ASYNC) == -1);
+}
+
+ATF_TP_ADD_TCS(tp)
+{
+
+        ATF_TP_ADD_TC(tp, pipe2_basic);
+        ATF_TP_ADD_TC(tp, pipe2_consume);
+        ATF_TP_ADD_TC(tp, pipe2_nonblock);
+        ATF_TP_ADD_TC(tp, pipe2_cloexec);
+        /*
+         * Adjusted for OpenBSD, not available
+         * ATF_TP_ADD_TC(tp, pipe2_nosigpipe);
+         */
+        ATF_TP_ADD_TC(tp, pipe2_einval);
+
+        return atf_no_error();
+}