xref: /netbsd-src/tests/lib/libc/c063/t_openat.c (revision a536ee5124e62c9a0051a252f7833dc8f50f44c9)
1 /*	$NetBSD: t_openat.c,v 1.1 2012/11/18 17:41:54 manu 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 1.1 2012/11/18 17:41:54 manu 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 
49 ATF_TC_WITH_CLEANUP(openat_fd);
50 ATF_TC_HEAD(openat_fd, tc)
51 {
52 	atf_tc_set_md_var(tc, "descr", "See that openat works with fd");
53 }
54 
55 ATF_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 
70 ATF_TC_CLEANUP(openat_fd, tc)
71 {
72 	(void)unlink(FILE);
73 	(void)unlink(FILEERR);
74 	(void)rmdir(DIR);
75 }
76 
77 ATF_TC_WITH_CLEANUP(openat_fdcwd);
78 ATF_TC_HEAD(openat_fdcwd, tc)
79 {
80 	atf_tc_set_md_var(tc, "descr",
81 			  "See that openat works with fd as AT_FDCWD");
82 }
83 
84 ATF_TC_BODY(openat_fdcwd, tc)
85 {
86 	int fd;
87 
88 	ATF_REQUIRE(mkdir(DIR, 0755) == 0);
89 	ATF_REQUIRE((fd = open(FILE, O_CREAT|O_RDWR, 0644)) != -1);
90 	ATF_REQUIRE(close(fd) == 0);
91 
92 	ATF_REQUIRE(chdir(DIR) == 0);
93 	ATF_REQUIRE((fd = openat(AT_FDCWD, BASEFILE, O_RDONLY, 0)) != -1);
94 	ATF_REQUIRE(close(fd) == 0);
95 }
96 
97 ATF_TC_CLEANUP(openat_fdcwd, tc)
98 {
99 	(void)unlink(FILE);
100 	(void)unlink(FILEERR);
101 	(void)rmdir(DIR);
102 }
103 
104 ATF_TC_WITH_CLEANUP(openat_fdcwderr);
105 ATF_TC_HEAD(openat_fdcwderr, tc)
106 {
107 	atf_tc_set_md_var(tc, "descr",
108 		  "See that openat fails with fd as AT_FDCWD and bad path");
109 }
110 
111 ATF_TC_BODY(openat_fdcwderr, tc)
112 {
113 	int fd;
114 
115 	ATF_REQUIRE(mkdir(DIR, 0755) == 0);
116 	ATF_REQUIRE((fd = openat(AT_FDCWD, FILEERR, O_RDONLY, 0)) == -1);
117 }
118 
119 ATF_TC_CLEANUP(openat_fdcwderr, tc)
120 {
121 	(void)unlink(FILE);
122 	(void)unlink(FILEERR);
123 	(void)rmdir(DIR);
124 }
125 
126 ATF_TC_WITH_CLEANUP(openat_fderr1);
127 ATF_TC_HEAD(openat_fderr1, tc)
128 {
129 	atf_tc_set_md_var(tc, "descr", "See that openat fail with bad path");
130 }
131 
132 ATF_TC_BODY(openat_fderr1, tc)
133 {
134 	int dfd;
135 	int fd;
136 
137 	ATF_REQUIRE(mkdir(DIR, 0755) == 0);
138 	ATF_REQUIRE((dfd = open(DIR, O_RDONLY, 0)) != -1);
139 	ATF_REQUIRE((fd = openat(dfd, FILEERR, O_RDONLY, 0)) == -1);
140 	ATF_REQUIRE(close(dfd) == 0);
141 }
142 
143 ATF_TC_CLEANUP(openat_fderr1, tc)
144 {
145 	(void)unlink(FILE);
146 	(void)unlink(FILEERR);
147 	(void)rmdir(DIR);
148 }
149 
150 ATF_TC_WITH_CLEANUP(openat_fderr2);
151 ATF_TC_HEAD(openat_fderr2, tc)
152 {
153 	atf_tc_set_md_var(tc, "descr", "See that openat fails with bad fdat");
154 }
155 
156 ATF_TC_BODY(openat_fderr2, tc)
157 {
158 	int dfd;
159 	int fd;
160 	char cwd[MAXPATHLEN];
161 
162 	ATF_REQUIRE(mkdir(DIR, 0755) == 0);
163 	ATF_REQUIRE((fd = open(FILE, O_CREAT|O_RDWR, 0644)) != -1);
164 	ATF_REQUIRE(close(fd) == 0);
165 
166 	ATF_REQUIRE((dfd = open(getcwd(cwd, MAXPATHLEN), O_RDONLY, 0)) != -1);
167 	ATF_REQUIRE((fd = openat(dfd, BASEFILE, O_RDONLY, 0)) == -1);
168 	ATF_REQUIRE(close(dfd) == 0);
169 }
170 
171 ATF_TC_CLEANUP(openat_fderr2, tc)
172 {
173 	(void)unlink(FILE);
174 	(void)unlink(FILEERR);
175 	(void)rmdir(DIR);
176 }
177 
178 ATF_TC_WITH_CLEANUP(openat_fderr3);
179 ATF_TC_HEAD(openat_fderr3, tc)
180 {
181 	atf_tc_set_md_var(tc, "descr", "See that openat fails with fd as -1");
182 }
183 
184 ATF_TC_BODY(openat_fderr3, tc)
185 {
186 	int fd;
187 
188 	ATF_REQUIRE(mkdir(DIR, 0755) == 0);
189 	ATF_REQUIRE((fd = open(FILE, O_CREAT|O_RDWR, 0644)) != -1);
190 	ATF_REQUIRE(close(fd) == 0);
191 
192 	ATF_REQUIRE((fd = openat(-1, FILE, O_RDONLY, 0)) == -1);
193 }
194 
195 ATF_TC_CLEANUP(openat_fderr3, tc)
196 {
197 	(void)unlink(FILE);
198 	(void)unlink(FILEERR);
199 	(void)rmdir(DIR);
200 }
201 
202 
203 ATF_TP_ADD_TCS(tp)
204 {
205 
206 	ATF_TP_ADD_TC(tp, openat_fd);
207 	ATF_TP_ADD_TC(tp, openat_fdcwd);
208 	ATF_TP_ADD_TC(tp, openat_fdcwderr);
209 	ATF_TP_ADD_TC(tp, openat_fderr1);
210 	ATF_TP_ADD_TC(tp, openat_fderr2);
211 	ATF_TP_ADD_TC(tp, openat_fderr3);
212 
213 	return atf_no_error();
214 }
215