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/* $NetBSD: t_mknodat.c,v 1.3 2013/03/17 04:46:06 jmmv Exp $ */
/*-
* Copyright (c) 2012 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Emmanuel Dreyfus.
*
* 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>
__RCSID("$NetBSD: t_mknodat.c,v 1.3 2013/03/17 04:46:06 jmmv Exp $");
#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>
#include <sys/param.h>
#include <sys/stat.h>
#define DIR "dir"
#define FILE "dir/openat"
#define BASEFILE "openat"
#define FILEERR "dir/openaterr"
static dev_t get_devnull(void);
static dev_t
get_devnull(void)
{
struct stat st;
if (stat(_PATH_DEVNULL, &st) != 0)
return NODEV;
return st.st_rdev;
}
ATF_TC(mknodat_fd);
ATF_TC_HEAD(mknodat_fd, tc)
{
atf_tc_set_md_var(tc, "descr", "See that mknodat works with fd");
atf_tc_set_md_var(tc, "require.user", "root");
}
ATF_TC_BODY(mknodat_fd, tc)
{
int dfd;
int fd;
dev_t dev;
mode_t mode = S_IFCHR|0600;
ATF_REQUIRE((dev = get_devnull()) != NODEV);
ATF_REQUIRE(mkdir(DIR, 0755) == 0);
ATF_REQUIRE((dfd = open(DIR, O_RDONLY, 0)) != -1);
ATF_REQUIRE((fd = mknodat(dfd, BASEFILE, mode, dev)) != -1);
ATF_REQUIRE(close(fd) == 0);
ATF_REQUIRE(access(FILE, F_OK) == 0);
}
ATF_TC(mknodat_fdcwd);
ATF_TC_HEAD(mknodat_fdcwd, tc)
{
atf_tc_set_md_var(tc, "descr",
"See that mknodat works with fd as AT_FDCWD");
atf_tc_set_md_var(tc, "require.user", "root");
}
ATF_TC_BODY(mknodat_fdcwd, tc)
{
int fd;
dev_t dev;
mode_t mode = S_IFCHR|0600;
ATF_REQUIRE((dev = get_devnull()) != NODEV);
ATF_REQUIRE(mkdir(DIR, 0755) == 0);
ATF_REQUIRE((fd = mknodat(AT_FDCWD, FILE, mode, dev)) != -1);
ATF_REQUIRE(close(fd) == 0);
ATF_REQUIRE(access(FILE, F_OK) == 0);
}
ATF_TC(mknodat_fdcwderr);
ATF_TC_HEAD(mknodat_fdcwderr, tc)
{
atf_tc_set_md_var(tc, "descr",
"See that mknodat fails with fd as AT_FDCWD and bad path");
atf_tc_set_md_var(tc, "require.user", "root");
}
ATF_TC_BODY(mknodat_fdcwderr, tc)
{
int fd;
dev_t dev;
mode_t mode = S_IFCHR|0600;
ATF_REQUIRE((dev = get_devnull()) != NODEV);
ATF_REQUIRE((fd = mknodat(AT_FDCWD, FILEERR, mode, dev)) == -1);
}
ATF_TC(mknodat_fderr);
ATF_TC_HEAD(mknodat_fderr, tc)
{
atf_tc_set_md_var(tc, "descr", "See that mknodat fails with fd as -1");
atf_tc_set_md_var(tc, "require.user", "root");
}
ATF_TC_BODY(mknodat_fderr, tc)
{
int fd;
dev_t dev;
mode_t mode = S_IFCHR|0600;
ATF_REQUIRE((dev = get_devnull()) != NODEV);
ATF_REQUIRE(mkdir(DIR, 0755) == 0);
ATF_REQUIRE((fd = open(FILE, O_CREAT|O_RDWR, 0644)) != -1);
ATF_REQUIRE(close(fd) == 0);
ATF_REQUIRE((fd = mknodat(-1, FILE, mode, dev)) == -1);
}
ATF_TP_ADD_TCS(tp)
{
ATF_TP_ADD_TC(tp, mknodat_fd);
ATF_TP_ADD_TC(tp, mknodat_fdcwd);
ATF_TP_ADD_TC(tp, mknodat_fdcwderr);
ATF_TP_ADD_TC(tp, mknodat_fderr);
return atf_no_error();
}
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