1 files changed, 199 insertions, 0 deletions

diff --git a/src/regress/lib/libc/sys/t_mknod.c b/src/regress/lib/libc/sys/t_mknod.c
new file mode 100644
index 0000000000..0a16124859
--- /dev/null
+++ b/src/regress/lib/libc/sys/t_mknod.c
@@ -0,0 +1,199 @@
+/*      $OpenBSD: t_mknod.c,v 1.1.1.1 2019/11/19 19:57:03 bluhm Exp $   */
+/* $NetBSD: t_mknod.c,v 1.2 2012/03/18 07:00:52 jruoho Exp $ */
+
+/*-
+ * Copyright (c) 2011 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 "macros.h"
+
+#include <sys/cdefs.h>
+__RCSID("$NetBSD: t_mknod.c,v 1.2 2012/03/18 07:00:52 jruoho Exp $");
+
+#include <sys/stat.h>
+
+#include "atf-c.h"
+#include <errno.h>
+#include <fcntl.h>
+#include <limits.h>
+#include <paths.h>
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+
+static char      path[] = "node";
+
+ATF_TC_WITH_CLEANUP(mknod_err);
+ATF_TC_HEAD(mknod_err, tc)
+{
+        atf_tc_set_md_var(tc, "descr",
+            "Test error conditions of mknod(2) (PR kern/45111)");
+        atf_tc_set_md_var(tc, "require.user", "root");
+}
+
+ATF_TC_BODY(mknod_err, tc)
+{
+        char buf[PATH_MAX + 1];
+
+        (void)memset(buf, 'x', sizeof(buf));
+
+        errno = 0;
+        ATF_REQUIRE_ERRNO(EINVAL, mknod(path, S_IFCHR, -1) == -1);
+
+        errno = 0;
+        ATF_REQUIRE_ERRNO(ENAMETOOLONG, mknod(buf, S_IFCHR, 0) == -1);
+
+        errno = 0;
+        ATF_REQUIRE_ERRNO(EFAULT, mknod((char *)-1, S_IFCHR, 0) == -1);
+
+        errno = 0;
+        ATF_REQUIRE_ERRNO(ENOENT, mknod("/a/b/c/d/e/f/g", S_IFCHR, 0) == -1);
+}
+
+ATF_TC_CLEANUP(mknod_err, tc)
+{
+        (void)unlink(path);
+}
+
+ATF_TC_WITH_CLEANUP(mknod_exist);
+ATF_TC_HEAD(mknod_exist, tc)
+{
+        atf_tc_set_md_var(tc, "descr", "Test EEXIST from mknod(2)");
+        atf_tc_set_md_var(tc, "require.user", "root");
+}
+
+ATF_TC_BODY(mknod_exist, tc)
+{
+        int fd;
+
+        fd = open("/etc/passwd", O_RDONLY);
+
+        if (fd >= 0) {
+
+                (void)close(fd);
+
+                errno = 0;
+                ATF_REQUIRE_ERRNO(EEXIST,
+                    mknod("/etc/passwd", S_IFCHR, 0) == -1);
+        }
+
+        ATF_REQUIRE(mknod(path, S_IFCHR, 0) == 0);
+
+        errno = 0;
+        ATF_REQUIRE_ERRNO(EEXIST, mknod(path, S_IFCHR, 0) == -1);
+
+        ATF_REQUIRE(unlink(path) == 0);
+}
+
+ATF_TC_CLEANUP(mknod_exist, tc)
+{
+        (void)unlink(path);
+}
+
+ATF_TC_WITH_CLEANUP(mknod_perm);
+ATF_TC_HEAD(mknod_perm, tc)
+{
+        atf_tc_set_md_var(tc, "descr", "Test permissions of mknod(2)");
+        atf_tc_set_md_var(tc, "require.user", "unprivileged");
+}
+
+ATF_TC_BODY(mknod_perm, tc)
+{
+
+        errno = 0;
+        ATF_REQUIRE_ERRNO(EPERM, mknod(path, S_IFCHR, 0) == -1);
+
+        errno = 0;
+        ATF_REQUIRE_ERRNO(EPERM, mknod(path, S_IFBLK, 0) == -1);
+}
+
+ATF_TC_CLEANUP(mknod_perm, tc)
+{
+        (void)unlink(path);
+}
+
+ATF_TC_WITH_CLEANUP(mknod_stat);
+ATF_TC_HEAD(mknod_stat, tc)
+{
+        atf_tc_set_md_var(tc, "descr", "A basic test of mknod(2)");
+        atf_tc_set_md_var(tc, "require.user", "root");
+}
+
+ATF_TC_BODY(mknod_stat, tc)
+{
+        struct stat st;
+
+        (void)memset(&st, 0, sizeof(struct stat));
+
+        ATF_REQUIRE(mknod(path, S_IFCHR, 0) == 0);
+        ATF_REQUIRE(stat(path, &st) == 0);
+
+        if (S_ISCHR(st.st_mode) == 0)
+                atf_tc_fail_nonfatal("invalid mode from mknod(2) (S_IFCHR)");
+
+        ATF_REQUIRE(unlink(path) == 0);
+
+        (void)memset(&st, 0, sizeof(struct stat));
+
+        ATF_REQUIRE(mknod(path, S_IFBLK, 0) == 0);
+        ATF_REQUIRE(stat(path, &st) == 0);
+
+        if (S_ISBLK(st.st_mode) == 0)
+                atf_tc_fail_nonfatal("invalid mode from mknod(2) (S_IFBLK)");
+
+        ATF_REQUIRE(unlink(path) == 0);
+
+        (void)memset(&st, 0, sizeof(struct stat));
+
+        /*
+         * Adjusted for OpenBSD, only supports FIFO and device special files
+         * ATF_REQUIRE(mknod(path, S_IFREG, 0) == 0);
+         * ATF_REQUIRE(stat(path, &st) == 0);
+         *
+         * if (S_ISREG(st.st_mode) == 0)
+         *      atf_tc_fail_nonfatal("invalid mode from mknod(2) (S_IFREG)");
+         *
+         * ATF_REQUIRE(unlink(path) == 0);
+         */
+}
+
+ATF_TC_CLEANUP(mknod_stat, tc)
+{
+        (void)unlink(path);
+}
+
+ATF_TP_ADD_TCS(tp)
+{
+
+        ATF_TP_ADD_TC(tp, mknod_err);
+        ATF_TP_ADD_TC(tp, mknod_exist);
+        ATF_TP_ADD_TC(tp, mknod_perm);
+        ATF_TP_ADD_TC(tp, mknod_stat);
+
+        return atf_no_error();
+}