t_mknodat.c revision 272343
1272343Sngie/* $NetBSD: t_mknodat.c,v 1.3 2013/03/17 04:46:06 jmmv Exp $ */ 2272343Sngie 3272343Sngie/*- 4272343Sngie * Copyright (c) 2012 The NetBSD Foundation, Inc. 5272343Sngie * All rights reserved. 6272343Sngie * 7272343Sngie * This code is derived from software contributed to The NetBSD Foundation 8272343Sngie * by Emmanuel Dreyfus. 9272343Sngie * 10272343Sngie * Redistribution and use in source and binary forms, with or without 11272343Sngie * modification, are permitted provided that the following conditions 12272343Sngie * are met: 13272343Sngie * 1. Redistributions of source code must retain the above copyright 14272343Sngie * notice, this list of conditions and the following disclaimer. 15272343Sngie * 2. Redistributions in binary form must reproduce the above copyright 16272343Sngie * notice, this list of conditions and the following disclaimer in the 17272343Sngie * documentation and/or other materials provided with the distribution. 18272343Sngie * 19272343Sngie * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20272343Sngie * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21272343Sngie * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22272343Sngie * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23272343Sngie * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24272343Sngie * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25272343Sngie * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26272343Sngie * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27272343Sngie * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28272343Sngie * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29272343Sngie * POSSIBILITY OF SUCH DAMAGE. 30272343Sngie */ 31272343Sngie#include <sys/cdefs.h> 32272343Sngie__RCSID("$NetBSD: t_mknodat.c,v 1.3 2013/03/17 04:46:06 jmmv Exp $"); 33272343Sngie 34272343Sngie#include <atf-c.h> 35272343Sngie#include <errno.h> 36272343Sngie#include <fcntl.h> 37272343Sngie#include <limits.h> 38272343Sngie#include <paths.h> 39272343Sngie#include <stdio.h> 40272343Sngie#include <string.h> 41272343Sngie#include <unistd.h> 42272343Sngie#include <sys/param.h> 43272343Sngie#include <sys/stat.h> 44272343Sngie 45272343Sngie#define DIR "dir" 46272343Sngie#define FILE "dir/openat" 47272343Sngie#define BASEFILE "openat" 48272343Sngie#define FILEERR "dir/openaterr" 49272343Sngie 50272343Sngiestatic dev_t get_devnull(void); 51272343Sngie 52272343Sngiestatic dev_t 53272343Sngieget_devnull(void) 54272343Sngie{ 55272343Sngie struct stat st; 56272343Sngie 57272343Sngie if (stat(_PATH_DEVNULL, &st) != 0) 58272343Sngie return NODEV; 59272343Sngie 60272343Sngie return st.st_rdev; 61272343Sngie} 62272343Sngie 63272343Sngie 64272343SngieATF_TC(mknodat_fd); 65272343SngieATF_TC_HEAD(mknodat_fd, tc) 66272343Sngie{ 67272343Sngie atf_tc_set_md_var(tc, "descr", "See that mknodat works with fd"); 68272343Sngie atf_tc_set_md_var(tc, "require.user", "root"); 69272343Sngie} 70272343SngieATF_TC_BODY(mknodat_fd, tc) 71272343Sngie{ 72272343Sngie int dfd; 73272343Sngie int fd; 74272343Sngie dev_t dev; 75272343Sngie mode_t mode = S_IFCHR|0600; 76272343Sngie 77272343Sngie ATF_REQUIRE((dev = get_devnull()) != NODEV); 78272343Sngie ATF_REQUIRE(mkdir(DIR, 0755) == 0); 79272343Sngie ATF_REQUIRE((dfd = open(DIR, O_RDONLY, 0)) != -1); 80272343Sngie ATF_REQUIRE((fd = mknodat(dfd, BASEFILE, mode, dev)) != -1); 81272343Sngie ATF_REQUIRE(close(fd) == 0); 82272343Sngie ATF_REQUIRE(access(FILE, F_OK) == 0); 83272343Sngie} 84272343Sngie 85272343SngieATF_TC(mknodat_fdcwd); 86272343SngieATF_TC_HEAD(mknodat_fdcwd, tc) 87272343Sngie{ 88272343Sngie atf_tc_set_md_var(tc, "descr", 89272343Sngie "See that mknodat works with fd as AT_FDCWD"); 90272343Sngie atf_tc_set_md_var(tc, "require.user", "root"); 91272343Sngie} 92272343SngieATF_TC_BODY(mknodat_fdcwd, tc) 93272343Sngie{ 94272343Sngie int fd; 95272343Sngie dev_t dev; 96272343Sngie mode_t mode = S_IFCHR|0600; 97272343Sngie 98272343Sngie ATF_REQUIRE((dev = get_devnull()) != NODEV); 99272343Sngie ATF_REQUIRE(mkdir(DIR, 0755) == 0); 100272343Sngie ATF_REQUIRE((fd = mknodat(AT_FDCWD, FILE, mode, dev)) != -1); 101272343Sngie ATF_REQUIRE(close(fd) == 0); 102272343Sngie ATF_REQUIRE(access(FILE, F_OK) == 0); 103272343Sngie} 104272343Sngie 105272343SngieATF_TC(mknodat_fdcwderr); 106272343SngieATF_TC_HEAD(mknodat_fdcwderr, tc) 107272343Sngie{ 108272343Sngie atf_tc_set_md_var(tc, "descr", 109272343Sngie "See that mknodat fails with fd as AT_FDCWD and bad path"); 110272343Sngie atf_tc_set_md_var(tc, "require.user", "root"); 111272343Sngie} 112272343SngieATF_TC_BODY(mknodat_fdcwderr, tc) 113272343Sngie{ 114272343Sngie int fd; 115272343Sngie dev_t dev; 116272343Sngie mode_t mode = S_IFCHR|0600; 117272343Sngie 118272343Sngie ATF_REQUIRE((dev = get_devnull()) != NODEV); 119272343Sngie ATF_REQUIRE((fd = mknodat(AT_FDCWD, FILEERR, mode, dev)) == -1); 120272343Sngie} 121272343Sngie 122272343SngieATF_TC(mknodat_fderr); 123272343SngieATF_TC_HEAD(mknodat_fderr, tc) 124272343Sngie{ 125272343Sngie atf_tc_set_md_var(tc, "descr", "See that mknodat fails with fd as -1"); 126272343Sngie atf_tc_set_md_var(tc, "require.user", "root"); 127272343Sngie} 128272343SngieATF_TC_BODY(mknodat_fderr, tc) 129272343Sngie{ 130272343Sngie int fd; 131272343Sngie dev_t dev; 132272343Sngie mode_t mode = S_IFCHR|0600; 133272343Sngie 134272343Sngie ATF_REQUIRE((dev = get_devnull()) != NODEV); 135272343Sngie ATF_REQUIRE(mkdir(DIR, 0755) == 0); 136272343Sngie ATF_REQUIRE((fd = open(FILE, O_CREAT|O_RDWR, 0644)) != -1); 137272343Sngie ATF_REQUIRE(close(fd) == 0); 138272343Sngie ATF_REQUIRE((fd = mknodat(-1, FILE, mode, dev)) == -1); 139272343Sngie} 140272343Sngie 141272343SngieATF_TP_ADD_TCS(tp) 142272343Sngie{ 143272343Sngie 144272343Sngie ATF_TP_ADD_TC(tp, mknodat_fd); 145272343Sngie ATF_TP_ADD_TC(tp, mknodat_fdcwd); 146272343Sngie ATF_TP_ADD_TC(tp, mknodat_fdcwderr); 147272343Sngie ATF_TP_ADD_TC(tp, mknodat_fderr); 148272343Sngie 149272343Sngie return atf_no_error(); 150272343Sngie} 151