1 files changed, 213 insertions, 0 deletions

diff --git a/src/regress/lib/libc/sys/t_mkdir.c b/src/regress/lib/libc/sys/t_mkdir.c
new file mode 100644
index 0000000000..41df34ace9
--- /dev/null
+++ b/src/regress/lib/libc/sys/t_mkdir.c
@@ -0,0 +1,213 @@
+/*      $OpenBSD: t_mkdir.c,v 1.1.1.1 2019/11/19 19:57:03 bluhm Exp $   */
+/* $NetBSD: t_mkdir.c,v 1.2 2011/10/15 07:38:31 jruoho Exp $ */
+
+/*-
+ * Copyright (c) 2008, 2011 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by Jason R. Thorpe and 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>
+__COPYRIGHT("@(#) Copyright (c) 2008\
+ The NetBSD Foundation, inc. All rights reserved.");
+__RCSID("$NetBSD: t_mkdir.c,v 1.2 2011/10/15 07:38:31 jruoho Exp $");
+
+#include <sys/stat.h>
+#include <sys/wait.h>
+
+#include "atf-c.h"
+#include <errno.h>
+#include <fcntl.h>
+#include <limits.h>
+#include <pwd.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+ATF_TC(mkdir_err);
+ATF_TC_HEAD(mkdir_err, tc)
+{
+        atf_tc_set_md_var(tc, "descr", "Checks errors from mkdir(2)");
+}
+
+ATF_TC_BODY(mkdir_err, tc)
+{
+        char buf[PATH_MAX + 1];
+        int fd;
+
+        (void)memset(buf, 'x', sizeof(buf));
+
+        fd = open("/etc", O_RDONLY);
+
+        if (fd >= 0) {
+
+                (void)close(fd);
+
+                errno = 0;
+                ATF_REQUIRE_ERRNO(EEXIST, mkdir("/etc", 0500) == -1);
+        }
+
+        errno = 0;
+        ATF_REQUIRE_ERRNO(EFAULT, mkdir((void *)-1, 0500) == -1);
+
+        errno = 0;
+        ATF_REQUIRE_ERRNO(ENAMETOOLONG, mkdir(buf, 0500) == -1);
+
+        errno = 0;
+        ATF_REQUIRE_ERRNO(ENOENT, mkdir("/a/b/c/d/e/f/g/h/i/j/k", 0500) == -1);
+}
+
+ATF_TC_WITH_CLEANUP(mkdir_perm);
+ATF_TC_HEAD(mkdir_perm, tc)
+{
+        atf_tc_set_md_var(tc, "descr", "Checks permissions with mkdir(2)");
+        atf_tc_set_md_var(tc, "require.user", "unprivileged");
+}
+
+ATF_TC_BODY(mkdir_perm, tc)
+{
+        errno = 0;
+        ATF_REQUIRE_ERRNO(EACCES, mkdir("/usr/__nonexistent__", 0500) == -1);
+}
+
+ATF_TC_CLEANUP(mkdir_perm, tc)
+{
+        (void)rmdir("/usr/__nonexistent__");
+}
+
+ATF_TC_WITH_CLEANUP(mkdir_mode);
+ATF_TC_HEAD(mkdir_mode, tc)
+{
+        atf_tc_set_md_var(tc, "descr", "Test that UIDs and GIDs are right "
+            "for a directory created with mkdir(2)");
+        atf_tc_set_md_var(tc, "require.user", "root");
+}
+
+ATF_TC_BODY(mkdir_mode, tc)
+{
+        static const char *path = "/tmp/mkdir";
+        struct stat st_a, st_b;
+        struct passwd *pw;
+        pid_t pid;
+        int sta;
+
+        (void)memset(&st_a, 0, sizeof(struct stat));
+        (void)memset(&st_b, 0, sizeof(struct stat));
+
+        pw = getpwnam("nobody");
+
+        ATF_REQUIRE(pw != NULL);
+        ATF_REQUIRE(stat("/tmp", &st_a) == 0);
+
+        pid = fork();
+        ATF_REQUIRE(pid >= 0);
+
+        if (pid == 0) {
+
+                if (setuid(pw->pw_uid) != 0)
+                        _exit(EXIT_FAILURE);
+
+                if (mkdir(path, 0500) != 0)
+                        _exit(EXIT_FAILURE);
+
+                _exit(EXIT_SUCCESS);
+        }
+
+        (void)sleep(1);
+        (void)wait(&sta);
+
+        if (WIFEXITED(sta) == 0 || WEXITSTATUS(sta) != EXIT_SUCCESS)
+                atf_tc_fail("failed to create '%s'", path);
+
+        ATF_REQUIRE(stat(path, &st_b) == 0);
+        ATF_REQUIRE(rmdir(path) == 0);
+
+        /*
+         * The directory's owner ID should be set to the
+         * effective UID, whereas the group ID should be
+         * set to that of the parent directory.
+         */
+        if (st_b.st_uid != pw->pw_uid)
+                atf_tc_fail("invalid UID for '%s'", path);
+
+        if (st_b.st_gid != st_a.st_gid)
+                atf_tc_fail("GID did not follow the parent directory");
+}
+
+ATF_TC_CLEANUP(mkdir_mode, tc)
+{
+        (void)rmdir("/tmp/mkdir");
+}
+
+ATF_TC(mkdir_trail);
+ATF_TC_HEAD(mkdir_trail, tc)
+{
+        atf_tc_set_md_var(tc, "descr", "Checks mkdir(2) for trailing slashes");
+}
+
+ATF_TC_BODY(mkdir_trail, tc)
+{
+        const char *tests[] = {
+                /*
+                 * IEEE 1003.1 second ed. 2.2.2.78:
+                 *
+                 * If the pathname refers to a directory, it may also have
+                 * one or more trailing slashes.  Multiple successive slashes
+                 * are considered to be the same as one slash.
+                 */
+                "dir1/",
+                "dir2//",
+
+                NULL,
+        };
+
+        const char **test;
+
+        for (test = &tests[0]; *test != NULL; ++test) {
+
+                (void)printf("Checking \"%s\"\n", *test);
+                (void)rmdir(*test);
+
+                ATF_REQUIRE(mkdir(*test, 0777) == 0);
+                ATF_REQUIRE(rename(*test, "foo") == 0);
+                ATF_REQUIRE(rename("foo/", *test) == 0);
+                ATF_REQUIRE(rmdir(*test) == 0);
+        }
+}
+
+ATF_TP_ADD_TCS(tp)
+{
+
+        ATF_TP_ADD_TC(tp, mkdir_err);
+        ATF_TP_ADD_TC(tp, mkdir_perm);
+        ATF_TP_ADD_TC(tp, mkdir_mode);
+        ATF_TP_ADD_TC(tp, mkdir_trail);
+
+        return atf_no_error();
+}