xref: /freebsd/contrib/netbsd-tests/lib/libc/c063/t_openat.c (revision a0ee8cc636cd5c2374ec44ca71226564ea0bca95)
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 
52 ATF_TC(openat_fd);
53 ATF_TC_HEAD(openat_fd, tc)
54 {
55 	atf_tc_set_md_var(tc, "descr", "See that openat works with fd");
56 }
57 ATF_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 
72 ATF_TC(openat_fdcwd);
73 ATF_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 }
78 ATF_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 
91 ATF_TC(openat_fdcwderr);
92 ATF_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 }
97 ATF_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 
105 ATF_TC(openat_fderr1);
106 ATF_TC_HEAD(openat_fderr1, tc)
107 {
108 	atf_tc_set_md_var(tc, "descr", "See that openat fail with bad path");
109 }
110 ATF_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 
121 ATF_TC(openat_fderr2);
122 ATF_TC_HEAD(openat_fderr2, tc)
123 {
124 	atf_tc_set_md_var(tc, "descr", "See that openat fails with bad fdat");
125 }
126 ATF_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 
141 ATF_TC(openat_fderr3);
142 ATF_TC_HEAD(openat_fderr3, tc)
143 {
144 	atf_tc_set_md_var(tc, "descr", "See that openat fails with fd as -1");
145 }
146 ATF_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 
157 ATF_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