1/* $NetBSD: t_mknodat.c,v 1.3 2013/03/17 04:46:06 jmmv Exp $ */ 2 3/*- 4 * Copyright (c) 2012 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Emmanuel Dreyfus. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31#include <sys/cdefs.h> 32__RCSID("$NetBSD: t_mknodat.c,v 1.3 2013/03/17 04:46:06 jmmv Exp $"); 33 34#include <atf-c.h> 35#include <errno.h> 36#include <fcntl.h> 37#include <limits.h> 38#include <paths.h> 39#include <stdio.h> 40#include <string.h> 41#include <unistd.h> 42#include <sys/param.h> 43#include <sys/stat.h> 44 45#define DIR "dir" 46#define FILE "dir/openat" 47#define BASEFILE "openat" 48#define FILEERR "dir/openaterr" 49 50static dev_t get_devnull(void); 51 52static dev_t 53get_devnull(void) 54{ 55 struct stat st; 56 57 if (stat(_PATH_DEVNULL, &st) != 0) 58 return NODEV; 59 60 return st.st_rdev; 61} 62 63 64ATF_TC(mknodat_fd); 65ATF_TC_HEAD(mknodat_fd, tc) 66{ 67 atf_tc_set_md_var(tc, "descr", "See that mknodat works with fd"); 68 atf_tc_set_md_var(tc, "require.user", "root"); 69} 70ATF_TC_BODY(mknodat_fd, tc) 71{ 72 int dfd; 73 int fd; 74 dev_t dev; 75 mode_t mode = S_IFCHR|0600; 76 77 ATF_REQUIRE((dev = get_devnull()) != NODEV); 78 ATF_REQUIRE(mkdir(DIR, 0755) == 0); 79 ATF_REQUIRE((dfd = open(DIR, O_RDONLY, 0)) != -1); 80 ATF_REQUIRE((fd = mknodat(dfd, BASEFILE, mode, dev)) != -1); 81 ATF_REQUIRE(close(fd) == 0); 82 ATF_REQUIRE(access(FILE, F_OK) == 0); 83} 84 85ATF_TC(mknodat_fdcwd); 86ATF_TC_HEAD(mknodat_fdcwd, tc) 87{ 88 atf_tc_set_md_var(tc, "descr", 89 "See that mknodat works with fd as AT_FDCWD"); 90 atf_tc_set_md_var(tc, "require.user", "root"); 91} 92ATF_TC_BODY(mknodat_fdcwd, tc) 93{ 94 int fd; 95 dev_t dev; 96 mode_t mode = S_IFCHR|0600; 97 98 ATF_REQUIRE((dev = get_devnull()) != NODEV); 99 ATF_REQUIRE(mkdir(DIR, 0755) == 0); 100 ATF_REQUIRE((fd = mknodat(AT_FDCWD, FILE, mode, dev)) != -1); 101 ATF_REQUIRE(close(fd) == 0); 102 ATF_REQUIRE(access(FILE, F_OK) == 0); 103} 104 105ATF_TC(mknodat_fdcwderr); 106ATF_TC_HEAD(mknodat_fdcwderr, tc) 107{ 108 atf_tc_set_md_var(tc, "descr", 109 "See that mknodat fails with fd as AT_FDCWD and bad path"); 110 atf_tc_set_md_var(tc, "require.user", "root"); 111} 112ATF_TC_BODY(mknodat_fdcwderr, tc) 113{ 114 int fd; 115 dev_t dev; 116 mode_t mode = S_IFCHR|0600; 117 118 ATF_REQUIRE((dev = get_devnull()) != NODEV); 119 ATF_REQUIRE((fd = mknodat(AT_FDCWD, FILEERR, mode, dev)) == -1); 120} 121 122ATF_TC(mknodat_fderr); 123ATF_TC_HEAD(mknodat_fderr, tc) 124{ 125 atf_tc_set_md_var(tc, "descr", "See that mknodat fails with fd as -1"); 126 atf_tc_set_md_var(tc, "require.user", "root"); 127} 128ATF_TC_BODY(mknodat_fderr, tc) 129{ 130 int fd; 131 dev_t dev; 132 mode_t mode = S_IFCHR|0600; 133 134 ATF_REQUIRE((dev = get_devnull()) != NODEV); 135 ATF_REQUIRE(mkdir(DIR, 0755) == 0); 136 ATF_REQUIRE((fd = open(FILE, O_CREAT|O_RDWR, 0644)) != -1); 137 ATF_REQUIRE(close(fd) == 0); 138 ATF_REQUIRE((fd = mknodat(-1, FILE, mode, dev)) == -1); 139} 140 141ATF_TP_ADD_TCS(tp) 142{ 143 144 ATF_TP_ADD_TC(tp, mknodat_fd); 145 ATF_TP_ADD_TC(tp, mknodat_fdcwd); 146 ATF_TP_ADD_TC(tp, mknodat_fdcwderr); 147 ATF_TP_ADD_TC(tp, mknodat_fderr); 148 149 return atf_no_error(); 150} 151