minix/tests/lib/libc/sys/t_mkdir.c

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/* $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 <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();
}