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
50 static dev_t get_devnull(void);
51
52 static dev_t
get_devnull(void)53 get_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
64 ATF_TC(mknodat_fd);
ATF_TC_HEAD(mknodat_fd,tc)65 ATF_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 }
ATF_TC_BODY(mknodat_fd,tc)70 ATF_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
85 ATF_TC(mknodat_fdcwd);
ATF_TC_HEAD(mknodat_fdcwd,tc)86 ATF_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 }
ATF_TC_BODY(mknodat_fdcwd,tc)92 ATF_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
105 ATF_TC(mknodat_fdcwderr);
ATF_TC_HEAD(mknodat_fdcwderr,tc)106 ATF_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 }
ATF_TC_BODY(mknodat_fdcwderr,tc)112 ATF_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
122 ATF_TC(mknodat_fderr);
ATF_TC_HEAD(mknodat_fderr,tc)123 ATF_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 }
ATF_TC_BODY(mknodat_fderr,tc)128 ATF_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
ATF_TP_ADD_TCS(tp)141 ATF_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