t_openat.c revision 291870 
1/*	$NetBSD: t_openat.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_openat.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/openat"
49#define BASEFILE "openat"
50#define FILEERR "dir/openaterr"
51
52ATF_TC(openat_fd);
53ATF_TC_HEAD(openat_fd, tc)
54{
55	atf_tc_set_md_var(tc, "descr", "See that openat works with fd");
56}
57ATF_TC_BODY(openat_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((fd = openat(dfd, BASEFILE, O_RDONLY, 0)) != -1);
68	ATF_REQUIRE(close(dfd) == 0);
69	ATF_REQUIRE(close(fd) == 0);
70}
71
72ATF_TC(openat_fdcwd);
73ATF_TC_HEAD(openat_fdcwd, tc)
74{
75	atf_tc_set_md_var(tc, "descr",
76			  "See that openat works with fd as AT_FDCWD");
77}
78ATF_TC_BODY(openat_fdcwd, tc)
79{
80	int fd;
81
82	ATF_REQUIRE(mkdir(DIR, 0755) == 0);
83	ATF_REQUIRE((fd = open(FILE, O_CREAT|O_RDWR, 0644)) != -1);
84	ATF_REQUIRE(close(fd) == 0);
85
86	ATF_REQUIRE(chdir(DIR) == 0);
87	ATF_REQUIRE((fd = openat(AT_FDCWD, BASEFILE, O_RDONLY, 0)) != -1);
88	ATF_REQUIRE(close(fd) == 0);
89}
90
91ATF_TC(openat_fdcwderr);
92ATF_TC_HEAD(openat_fdcwderr, tc)
93{
94	atf_tc_set_md_var(tc, "descr",
95		  "See that openat fails with fd as AT_FDCWD and bad path");
96}
97ATF_TC_BODY(openat_fdcwderr, tc)
98{
99	int fd;
100
101	ATF_REQUIRE(mkdir(DIR, 0755) == 0);
102	ATF_REQUIRE((fd = openat(AT_FDCWD, FILEERR, O_RDONLY, 0)) == -1);
103}
104
105ATF_TC(openat_fderr1);
106ATF_TC_HEAD(openat_fderr1, tc)
107{
108	atf_tc_set_md_var(tc, "descr", "See that openat fail with bad path");
109}
110ATF_TC_BODY(openat_fderr1, tc)
111{
112	int dfd;
113	int fd;
114
115	ATF_REQUIRE(mkdir(DIR, 0755) == 0);
116	ATF_REQUIRE((dfd = open(DIR, O_RDONLY, 0)) != -1);
117	ATF_REQUIRE((fd = openat(dfd, FILEERR, O_RDONLY, 0)) == -1);
118	ATF_REQUIRE(close(dfd) == 0);
119}
120
121ATF_TC(openat_fderr2);
122ATF_TC_HEAD(openat_fderr2, tc)
123{
124	atf_tc_set_md_var(tc, "descr", "See that openat fails with bad fdat");
125}
126ATF_TC_BODY(openat_fderr2, tc)
127{
128	int dfd;
129	int fd;
130	char cwd[MAXPATHLEN];
131
132	ATF_REQUIRE(mkdir(DIR, 0755) == 0);
133	ATF_REQUIRE((fd = open(FILE, O_CREAT|O_RDWR, 0644)) != -1);
134	ATF_REQUIRE(close(fd) == 0);
135
136	ATF_REQUIRE((dfd = open(getcwd(cwd, MAXPATHLEN), O_RDONLY, 0)) != -1);
137	ATF_REQUIRE((fd = openat(dfd, BASEFILE, O_RDONLY, 0)) == -1);
138	ATF_REQUIRE(close(dfd) == 0);
139}
140
141ATF_TC(openat_fderr3);
142ATF_TC_HEAD(openat_fderr3, tc)
143{
144	atf_tc_set_md_var(tc, "descr", "See that openat fails with fd as -1");
145}
146ATF_TC_BODY(openat_fderr3, tc)
147{
148	int fd;
149
150	ATF_REQUIRE(mkdir(DIR, 0755) == 0);
151	ATF_REQUIRE((fd = open(FILE, O_CREAT|O_RDWR, 0644)) != -1);
152	ATF_REQUIRE(close(fd) == 0);
153
154	ATF_REQUIRE((fd = openat(-1, FILE, O_RDONLY, 0)) == -1);
155}
156
157ATF_TP_ADD_TCS(tp)
158{
159
160	ATF_TP_ADD_TC(tp, openat_fd);
161	ATF_TP_ADD_TC(tp, openat_fdcwd);
162	ATF_TP_ADD_TC(tp, openat_fdcwderr);
163	ATF_TP_ADD_TC(tp, openat_fderr1);
164	ATF_TP_ADD_TC(tp, openat_fderr2);
165	ATF_TP_ADD_TC(tp, openat_fderr3);
166
167	return atf_no_error();
168}
169