t_openat.c revision 272343 
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
44#define DIR "dir"
45#define FILE "dir/openat"
46#define BASEFILE "openat"
47#define FILEERR "dir/openaterr"
48
49ATF_TC(openat_fd);
50ATF_TC_HEAD(openat_fd, tc)
51{
52	atf_tc_set_md_var(tc, "descr", "See that openat works with fd");
53}
54ATF_TC_BODY(openat_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((fd = openat(dfd, BASEFILE, O_RDONLY, 0)) != -1);
65	ATF_REQUIRE(close(dfd) == 0);
66	ATF_REQUIRE(close(fd) == 0);
67}
68
69ATF_TC(openat_fdcwd);
70ATF_TC_HEAD(openat_fdcwd, tc)
71{
72	atf_tc_set_md_var(tc, "descr",
73			  "See that openat works with fd as AT_FDCWD");
74}
75ATF_TC_BODY(openat_fdcwd, tc)
76{
77	int fd;
78
79	ATF_REQUIRE(mkdir(DIR, 0755) == 0);
80	ATF_REQUIRE((fd = open(FILE, O_CREAT|O_RDWR, 0644)) != -1);
81	ATF_REQUIRE(close(fd) == 0);
82
83	ATF_REQUIRE(chdir(DIR) == 0);
84	ATF_REQUIRE((fd = openat(AT_FDCWD, BASEFILE, O_RDONLY, 0)) != -1);
85	ATF_REQUIRE(close(fd) == 0);
86}
87
88ATF_TC(openat_fdcwderr);
89ATF_TC_HEAD(openat_fdcwderr, tc)
90{
91	atf_tc_set_md_var(tc, "descr",
92		  "See that openat fails with fd as AT_FDCWD and bad path");
93}
94ATF_TC_BODY(openat_fdcwderr, tc)
95{
96	int fd;
97
98	ATF_REQUIRE(mkdir(DIR, 0755) == 0);
99	ATF_REQUIRE((fd = openat(AT_FDCWD, FILEERR, O_RDONLY, 0)) == -1);
100}
101
102ATF_TC(openat_fderr1);
103ATF_TC_HEAD(openat_fderr1, tc)
104{
105	atf_tc_set_md_var(tc, "descr", "See that openat fail with bad path");
106}
107ATF_TC_BODY(openat_fderr1, tc)
108{
109	int dfd;
110	int fd;
111
112	ATF_REQUIRE(mkdir(DIR, 0755) == 0);
113	ATF_REQUIRE((dfd = open(DIR, O_RDONLY, 0)) != -1);
114	ATF_REQUIRE((fd = openat(dfd, FILEERR, O_RDONLY, 0)) == -1);
115	ATF_REQUIRE(close(dfd) == 0);
116}
117
118ATF_TC(openat_fderr2);
119ATF_TC_HEAD(openat_fderr2, tc)
120{
121	atf_tc_set_md_var(tc, "descr", "See that openat fails with bad fdat");
122}
123ATF_TC_BODY(openat_fderr2, tc)
124{
125	int dfd;
126	int fd;
127	char cwd[MAXPATHLEN];
128
129	ATF_REQUIRE(mkdir(DIR, 0755) == 0);
130	ATF_REQUIRE((fd = open(FILE, O_CREAT|O_RDWR, 0644)) != -1);
131	ATF_REQUIRE(close(fd) == 0);
132
133	ATF_REQUIRE((dfd = open(getcwd(cwd, MAXPATHLEN), O_RDONLY, 0)) != -1);
134	ATF_REQUIRE((fd = openat(dfd, BASEFILE, O_RDONLY, 0)) == -1);
135	ATF_REQUIRE(close(dfd) == 0);
136}
137
138ATF_TC(openat_fderr3);
139ATF_TC_HEAD(openat_fderr3, tc)
140{
141	atf_tc_set_md_var(tc, "descr", "See that openat fails with fd as -1");
142}
143ATF_TC_BODY(openat_fderr3, tc)
144{
145	int fd;
146
147	ATF_REQUIRE(mkdir(DIR, 0755) == 0);
148	ATF_REQUIRE((fd = open(FILE, O_CREAT|O_RDWR, 0644)) != -1);
149	ATF_REQUIRE(close(fd) == 0);
150
151	ATF_REQUIRE((fd = openat(-1, FILE, O_RDONLY, 0)) == -1);
152}
153
154ATF_TP_ADD_TCS(tp)
155{
156
157	ATF_TP_ADD_TC(tp, openat_fd);
158	ATF_TP_ADD_TC(tp, openat_fdcwd);
159	ATF_TP_ADD_TC(tp, openat_fdcwderr);
160	ATF_TP_ADD_TC(tp, openat_fderr1);
161	ATF_TP_ADD_TC(tp, openat_fderr2);
162	ATF_TP_ADD_TC(tp, openat_fderr3);
163
164	return atf_no_error();
165}
166