t_openat.c revision 313535 
1/*	$NetBSD: t_openat.c,v 1.3 2017/01/10 15:13:56 christos 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 1.3 2017/01/10 15:13:56 christos Exp $");
33
34#include <sys/param.h>
35#include <sys/stat.h>
36#include <atf-c.h>
37#include <errno.h>
38#include <fcntl.h>
39#include <limits.h>
40#include <paths.h>
41#include <stdio.h>
42#include <string.h>
43#include <unistd.h>
44
45#define DIR "dir"
46#define FILE "dir/openat"
47#define BASEFILE "openat"
48#define FILEERR "dir/openaterr"
49
50ATF_TC(openat_fd);
51ATF_TC_HEAD(openat_fd, tc)
52{
53	atf_tc_set_md_var(tc, "descr", "See that openat works with fd");
54}
55ATF_TC_BODY(openat_fd, tc)
56{
57	int dfd;
58	int fd;
59
60	ATF_REQUIRE(mkdir(DIR, 0755) == 0);
61	ATF_REQUIRE((fd = open(FILE, O_CREAT|O_RDWR, 0644)) != -1);
62	ATF_REQUIRE(close(fd) == 0);
63
64	ATF_REQUIRE((dfd = open(DIR, O_RDONLY, 0)) != -1);
65	ATF_REQUIRE((fd = openat(dfd, BASEFILE, O_RDONLY, 0)) != -1);
66	ATF_REQUIRE(close(dfd) == 0);
67	ATF_REQUIRE(close(fd) == 0);
68}
69
70ATF_TC(openat_fdcwd);
71ATF_TC_HEAD(openat_fdcwd, tc)
72{
73	atf_tc_set_md_var(tc, "descr",
74			  "See that openat works with fd as AT_FDCWD");
75}
76ATF_TC_BODY(openat_fdcwd, tc)
77{
78	int fd;
79
80	ATF_REQUIRE(mkdir(DIR, 0755) == 0);
81	ATF_REQUIRE((fd = open(FILE, O_CREAT|O_RDWR, 0644)) != -1);
82	ATF_REQUIRE(close(fd) == 0);
83
84	ATF_REQUIRE(chdir(DIR) == 0);
85	ATF_REQUIRE((fd = openat(AT_FDCWD, BASEFILE, O_RDONLY, 0)) != -1);
86	ATF_REQUIRE(close(fd) == 0);
87}
88
89ATF_TC(openat_fdcwderr);
90ATF_TC_HEAD(openat_fdcwderr, tc)
91{
92	atf_tc_set_md_var(tc, "descr",
93		  "See that openat fails with fd as AT_FDCWD and bad path");
94}
95ATF_TC_BODY(openat_fdcwderr, tc)
96{
97	int fd;
98
99	ATF_REQUIRE(mkdir(DIR, 0755) == 0);
100	ATF_REQUIRE((fd = openat(AT_FDCWD, FILEERR, O_RDONLY, 0)) == -1);
101}
102
103ATF_TC(openat_fderr1);
104ATF_TC_HEAD(openat_fderr1, tc)
105{
106	atf_tc_set_md_var(tc, "descr", "See that openat fail with bad path");
107}
108ATF_TC_BODY(openat_fderr1, tc)
109{
110	int dfd;
111	int fd;
112
113	ATF_REQUIRE(mkdir(DIR, 0755) == 0);
114	ATF_REQUIRE((dfd = open(DIR, O_RDONLY, 0)) != -1);
115	ATF_REQUIRE((fd = openat(dfd, FILEERR, O_RDONLY, 0)) == -1);
116	ATF_REQUIRE(close(dfd) == 0);
117}
118
119ATF_TC(openat_fderr2);
120ATF_TC_HEAD(openat_fderr2, tc)
121{
122	atf_tc_set_md_var(tc, "descr", "See that openat fails with bad fdat");
123}
124ATF_TC_BODY(openat_fderr2, tc)
125{
126	int dfd;
127	int fd;
128	char cwd[MAXPATHLEN];
129
130	ATF_REQUIRE(mkdir(DIR, 0755) == 0);
131	ATF_REQUIRE((fd = open(FILE, O_CREAT|O_RDWR, 0644)) != -1);
132	ATF_REQUIRE(close(fd) == 0);
133
134	ATF_REQUIRE((dfd = open(getcwd(cwd, MAXPATHLEN), O_RDONLY, 0)) != -1);
135	ATF_REQUIRE((fd = openat(dfd, BASEFILE, O_RDONLY, 0)) == -1);
136	ATF_REQUIRE(close(dfd) == 0);
137}
138
139ATF_TC(openat_fderr3);
140ATF_TC_HEAD(openat_fderr3, tc)
141{
142	atf_tc_set_md_var(tc, "descr", "See that openat fails with fd as -1");
143}
144ATF_TC_BODY(openat_fderr3, tc)
145{
146	int fd;
147
148	ATF_REQUIRE(mkdir(DIR, 0755) == 0);
149	ATF_REQUIRE((fd = open(FILE, O_CREAT|O_RDWR, 0644)) != -1);
150	ATF_REQUIRE(close(fd) == 0);
151
152	ATF_REQUIRE((fd = openat(-1, FILE, O_RDONLY, 0)) == -1);
153}
154
155ATF_TP_ADD_TCS(tp)
156{
157
158	ATF_TP_ADD_TC(tp, openat_fd);
159	ATF_TP_ADD_TC(tp, openat_fdcwd);
160	ATF_TP_ADD_TC(tp, openat_fdcwderr);
161	ATF_TP_ADD_TC(tp, openat_fderr1);
162	ATF_TP_ADD_TC(tp, openat_fderr2);
163	ATF_TP_ADD_TC(tp, openat_fderr3);
164
165	return atf_no_error();
166}
167