t_unlinkat.c revision 291870 
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#ifdef __FreeBSD__
44#include <sys/stat.h>
45#endif
46
47#define DIR "dir"
48#define FILE "dir/unlinkat"
49#define BASEFILE "unlinkat"
50#define FILEERR "dir/unlinkaterr"
51
52ATF_TC(unlinkat_fd);
53ATF_TC_HEAD(unlinkat_fd, tc)
54{
55	atf_tc_set_md_var(tc, "descr", "See that unlinkat works with fd");
56}
57ATF_TC_BODY(unlinkat_fd, tc)
58{
59	int dfd;
60	int fd;
61
62	ATF_REQUIRE(mkdir(DIR, 0755) == 0);
63	ATF_REQUIRE((fd = open(FILE, O_CREAT|O_RDWR, 0644)) != -1);
64	ATF_REQUIRE(close(fd) == 0);
65
66	ATF_REQUIRE((dfd = open(DIR, O_RDONLY, 0)) != -1);
67	ATF_REQUIRE(unlinkat(dfd, BASEFILE, 0) == 0);
68	ATF_REQUIRE(close(dfd) == 0);
69}
70
71ATF_TC(unlinkat_fdcwd);
72ATF_TC_HEAD(unlinkat_fdcwd, tc)
73{
74	atf_tc_set_md_var(tc, "descr",
75			  "See that unlinkat works with fd as AT_FDCWD");
76}
77ATF_TC_BODY(unlinkat_fdcwd, tc)
78{
79	int fd;
80
81	ATF_REQUIRE(mkdir(DIR, 0755) == 0);
82	ATF_REQUIRE((fd = open(FILE, O_CREAT|O_RDWR, 0644)) != -1);
83	ATF_REQUIRE(close(fd) == 0);
84
85	ATF_REQUIRE(chdir(DIR) == 0);
86	ATF_REQUIRE(unlinkat(AT_FDCWD, BASEFILE, 0) == 0);
87}
88
89ATF_TC(unlinkat_fdcwderr);
90ATF_TC_HEAD(unlinkat_fdcwderr, tc)
91{
92	atf_tc_set_md_var(tc, "descr",
93		  "See that unlinkat fails with fd as AT_FDCWD and bad path");
94}
95ATF_TC_BODY(unlinkat_fdcwderr, tc)
96{
97	ATF_REQUIRE(mkdir(DIR, 0755) == 0);
98	ATF_REQUIRE(unlinkat(AT_FDCWD, FILEERR, 0) == -1);
99}
100
101ATF_TC(unlinkat_fderr1);
102ATF_TC_HEAD(unlinkat_fderr1, tc)
103{
104	atf_tc_set_md_var(tc, "descr", "See that unlinkat fail with bad path");
105}
106ATF_TC_BODY(unlinkat_fderr1, tc)
107{
108	int dfd;
109
110	ATF_REQUIRE(mkdir(DIR, 0755) == 0);
111	ATF_REQUIRE((dfd = open(DIR, O_RDONLY, 0)) != -1);
112	ATF_REQUIRE(unlinkat(dfd, FILEERR, 0) == -1);
113	ATF_REQUIRE(close(dfd) == 0);
114}
115
116ATF_TC(unlinkat_fderr2);
117ATF_TC_HEAD(unlinkat_fderr2, tc)
118{
119	atf_tc_set_md_var(tc, "descr", "See that unlinkat fails with bad fdat");
120}
121ATF_TC_BODY(unlinkat_fderr2, tc)
122{
123	int dfd;
124	int fd;
125	char cwd[MAXPATHLEN];
126
127	ATF_REQUIRE(mkdir(DIR, 0755) == 0);
128	ATF_REQUIRE((fd = open(FILE, O_CREAT|O_RDWR, 0644)) != -1);
129	ATF_REQUIRE(close(fd) == 0);
130
131	ATF_REQUIRE((dfd = open(getcwd(cwd, MAXPATHLEN), O_RDONLY, 0)) != -1);
132	ATF_REQUIRE(unlinkat(dfd, BASEFILE, 0) == -1);
133	ATF_REQUIRE(close(dfd) == 0);
134}
135
136ATF_TC(unlinkat_fderr3);
137ATF_TC_HEAD(unlinkat_fderr3, tc)
138{
139	atf_tc_set_md_var(tc, "descr", "See that unlinkat fails with fd as -1");
140}
141ATF_TC_BODY(unlinkat_fderr3, tc)
142{
143	int fd;
144
145	ATF_REQUIRE(mkdir(DIR, 0755) == 0);
146	ATF_REQUIRE((fd = open(FILE, O_CREAT|O_RDWR, 0644)) != -1);
147	ATF_REQUIRE(close(fd) == 0);
148
149	ATF_REQUIRE(unlinkat(-1, FILE, 0) == -1);
150}
151
152ATF_TC(unlinkat_dir);
153ATF_TC_HEAD(unlinkat_dir, tc)
154{
155	atf_tc_set_md_var(tc, "descr",
156			  "See that unlinkat can remove directories");
157}
158ATF_TC_BODY(unlinkat_dir, tc)
159{
160	ATF_REQUIRE(mkdir(DIR, 0755) == 0);
161
162	ATF_REQUIRE(unlinkat(AT_FDCWD, DIR, 0) == -1);
163	ATF_REQUIRE(errno == EPERM);
164	ATF_REQUIRE(unlinkat(AT_FDCWD, DIR, AT_REMOVEDIR) == 0);
165}
166
167ATF_TP_ADD_TCS(tp)
168{
169
170	ATF_TP_ADD_TC(tp, unlinkat_fd);
171	ATF_TP_ADD_TC(tp, unlinkat_fdcwd);
172	ATF_TP_ADD_TC(tp, unlinkat_fdcwderr);
173	ATF_TP_ADD_TC(tp, unlinkat_fderr1);
174	ATF_TP_ADD_TC(tp, unlinkat_fderr2);
175	ATF_TP_ADD_TC(tp, unlinkat_fderr3);
176	ATF_TP_ADD_TC(tp, unlinkat_dir);
177
178	return atf_no_error();
179}
180