1 /* $NetBSD: t_unlinkat.c,v 1.2 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_unlinkat.c,v 1.2 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
44 #define DIR "dir"
45 #define FILE "dir/unlinkat"
46 #define BASEFILE "unlinkat"
47 #define FILEERR "dir/unlinkaterr"
48
49 ATF_TC(unlinkat_fd);
ATF_TC_HEAD(unlinkat_fd,tc)50 ATF_TC_HEAD(unlinkat_fd, tc)
51 {
52 atf_tc_set_md_var(tc, "descr", "See that unlinkat works with fd");
53 }
ATF_TC_BODY(unlinkat_fd,tc)54 ATF_TC_BODY(unlinkat_fd, tc)
55 {
56 int dfd;
57 int fd;
58
59 ATF_REQUIRE(mkdir(DIR, 0755) == 0);
60 ATF_REQUIRE((fd = open(FILE, O_CREAT|O_RDWR, 0644)) != -1);
61 ATF_REQUIRE(close(fd) == 0);
62
63 ATF_REQUIRE((dfd = open(DIR, O_RDONLY, 0)) != -1);
64 ATF_REQUIRE(unlinkat(dfd, BASEFILE, 0) == 0);
65 ATF_REQUIRE(close(dfd) == 0);
66 }
67
68 ATF_TC(unlinkat_fdcwd);
ATF_TC_HEAD(unlinkat_fdcwd,tc)69 ATF_TC_HEAD(unlinkat_fdcwd, tc)
70 {
71 atf_tc_set_md_var(tc, "descr",
72 "See that unlinkat works with fd as AT_FDCWD");
73 }
ATF_TC_BODY(unlinkat_fdcwd,tc)74 ATF_TC_BODY(unlinkat_fdcwd, tc)
75 {
76 int fd;
77
78 ATF_REQUIRE(mkdir(DIR, 0755) == 0);
79 ATF_REQUIRE((fd = open(FILE, O_CREAT|O_RDWR, 0644)) != -1);
80 ATF_REQUIRE(close(fd) == 0);
81
82 ATF_REQUIRE(chdir(DIR) == 0);
83 ATF_REQUIRE(unlinkat(AT_FDCWD, BASEFILE, 0) == 0);
84 }
85
86 ATF_TC(unlinkat_fdcwderr);
ATF_TC_HEAD(unlinkat_fdcwderr,tc)87 ATF_TC_HEAD(unlinkat_fdcwderr, tc)
88 {
89 atf_tc_set_md_var(tc, "descr",
90 "See that unlinkat fails with fd as AT_FDCWD and bad path");
91 }
ATF_TC_BODY(unlinkat_fdcwderr,tc)92 ATF_TC_BODY(unlinkat_fdcwderr, tc)
93 {
94 ATF_REQUIRE(mkdir(DIR, 0755) == 0);
95 ATF_REQUIRE(unlinkat(AT_FDCWD, FILEERR, 0) == -1);
96 }
97
98 ATF_TC(unlinkat_fderr1);
ATF_TC_HEAD(unlinkat_fderr1,tc)99 ATF_TC_HEAD(unlinkat_fderr1, tc)
100 {
101 atf_tc_set_md_var(tc, "descr", "See that unlinkat fail with bad path");
102 }
ATF_TC_BODY(unlinkat_fderr1,tc)103 ATF_TC_BODY(unlinkat_fderr1, tc)
104 {
105 int dfd;
106
107 ATF_REQUIRE(mkdir(DIR, 0755) == 0);
108 ATF_REQUIRE((dfd = open(DIR, O_RDONLY, 0)) != -1);
109 ATF_REQUIRE(unlinkat(dfd, FILEERR, 0) == -1);
110 ATF_REQUIRE(close(dfd) == 0);
111 }
112
113 ATF_TC(unlinkat_fderr2);
ATF_TC_HEAD(unlinkat_fderr2,tc)114 ATF_TC_HEAD(unlinkat_fderr2, tc)
115 {
116 atf_tc_set_md_var(tc, "descr", "See that unlinkat fails with bad fdat");
117 }
ATF_TC_BODY(unlinkat_fderr2,tc)118 ATF_TC_BODY(unlinkat_fderr2, tc)
119 {
120 int dfd;
121 int fd;
122 char cwd[MAXPATHLEN];
123
124 ATF_REQUIRE(mkdir(DIR, 0755) == 0);
125 ATF_REQUIRE((fd = open(FILE, O_CREAT|O_RDWR, 0644)) != -1);
126 ATF_REQUIRE(close(fd) == 0);
127
128 ATF_REQUIRE((dfd = open(getcwd(cwd, MAXPATHLEN), O_RDONLY, 0)) != -1);
129 ATF_REQUIRE(unlinkat(dfd, BASEFILE, 0) == -1);
130 ATF_REQUIRE(close(dfd) == 0);
131 }
132
133 ATF_TC(unlinkat_fderr3);
ATF_TC_HEAD(unlinkat_fderr3,tc)134 ATF_TC_HEAD(unlinkat_fderr3, tc)
135 {
136 atf_tc_set_md_var(tc, "descr", "See that unlinkat fails with fd as -1");
137 }
ATF_TC_BODY(unlinkat_fderr3,tc)138 ATF_TC_BODY(unlinkat_fderr3, tc)
139 {
140 int fd;
141
142 ATF_REQUIRE(mkdir(DIR, 0755) == 0);
143 ATF_REQUIRE((fd = open(FILE, O_CREAT|O_RDWR, 0644)) != -1);
144 ATF_REQUIRE(close(fd) == 0);
145
146 ATF_REQUIRE(unlinkat(-1, FILE, 0) == -1);
147 }
148
149 ATF_TC(unlinkat_dir);
ATF_TC_HEAD(unlinkat_dir,tc)150 ATF_TC_HEAD(unlinkat_dir, tc)
151 {
152 atf_tc_set_md_var(tc, "descr",
153 "See that unlinkat can remove directories");
154 }
ATF_TC_BODY(unlinkat_dir,tc)155 ATF_TC_BODY(unlinkat_dir, tc)
156 {
157 ATF_REQUIRE(mkdir(DIR, 0755) == 0);
158
159 ATF_REQUIRE(unlinkat(AT_FDCWD, DIR, 0) == -1);
160 ATF_REQUIRE(errno == EPERM);
161 ATF_REQUIRE(unlinkat(AT_FDCWD, DIR, AT_REMOVEDIR) == 0);
162 }
163
ATF_TP_ADD_TCS(tp)164 ATF_TP_ADD_TCS(tp)
165 {
166
167 ATF_TP_ADD_TC(tp, unlinkat_fd);
168 ATF_TP_ADD_TC(tp, unlinkat_fdcwd);
169 ATF_TP_ADD_TC(tp, unlinkat_fdcwderr);
170 ATF_TP_ADD_TC(tp, unlinkat_fderr1);
171 ATF_TP_ADD_TC(tp, unlinkat_fderr2);
172 ATF_TP_ADD_TC(tp, unlinkat_fderr3);
173 ATF_TP_ADD_TC(tp, unlinkat_dir);
174
175 return atf_no_error();
176 }
177