diff options
Diffstat (limited to 'lib/libc/sys/t_mkdir.c')
| -rw-r--r-- | lib/libc/sys/t_mkdir.c | 210 |
1 files changed, 210 insertions, 0 deletions
diff --git a/lib/libc/sys/t_mkdir.c b/lib/libc/sys/t_mkdir.c new file mode 100644 index 000000000000..d97a20b6c26c --- /dev/null +++ b/lib/libc/sys/t_mkdir.c @@ -0,0 +1,210 @@ +/* $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(); +} |