t_fstatat.c revision 313535 
1/*	$NetBSD: t_fstatat.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_fstatat.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/fstatat"
47#define BASEFILE "fstatat"
48#define LINK "dir/symlink"
49#define BASELINK "symlink"
50#define FILEERR "dir/symlink"
51
52ATF_TC(fstatat_fd);
53ATF_TC_HEAD(fstatat_fd, tc)
54{
55	atf_tc_set_md_var(tc, "descr", "See that fstatat works with fd");
56}
57ATF_TC_BODY(fstatat_fd, tc)
58{
59	int dfd;
60	int fd;
61	struct stat st1, st2;
62
63	ATF_REQUIRE(mkdir(DIR, 0755) == 0);
64	ATF_REQUIRE((fd = open(FILE, O_CREAT|O_RDWR, 0644)) != -1);
65	ATF_REQUIRE(close(fd) == 0);
66
67	ATF_REQUIRE((dfd = open(DIR, O_RDONLY, 0)) != -1);
68	ATF_REQUIRE(fstatat(dfd, BASEFILE, &st1, 0) == 0);
69	ATF_REQUIRE(close(dfd) == 0);
70
71	ATF_REQUIRE(stat(FILE, &st2) == 0);
72	ATF_REQUIRE(memcmp(&st1, &st2, sizeof(st1)) == 0);
73}
74
75ATF_TC(fstatat_fdcwd);
76ATF_TC_HEAD(fstatat_fdcwd, tc)
77{
78	atf_tc_set_md_var(tc, "descr",
79			  "See that fstatat works with fd as AT_FDCWD");
80}
81ATF_TC_BODY(fstatat_fdcwd, tc)
82{
83	int fd;
84	struct stat st;
85
86	ATF_REQUIRE(mkdir(DIR, 0755) == 0);
87	ATF_REQUIRE((fd = open(FILE, O_CREAT|O_RDWR, 0644)) != -1);
88	ATF_REQUIRE(close(fd) == 0);
89
90	ATF_REQUIRE(chdir(DIR) == 0);
91	ATF_REQUIRE(fstatat(AT_FDCWD, BASEFILE, &st, 0) == 0);
92}
93
94ATF_TC(fstatat_fdcwderr);
95ATF_TC_HEAD(fstatat_fdcwderr, tc)
96{
97	atf_tc_set_md_var(tc, "descr",
98		  "See that fstatat fails with fd as AT_FDCWD and bad path");
99}
100ATF_TC_BODY(fstatat_fdcwderr, tc)
101{
102	struct stat st;
103
104	ATF_REQUIRE(mkdir(DIR, 0755) == 0);
105	ATF_REQUIRE(fstatat(AT_FDCWD, FILEERR, &st, 0) == -1);
106}
107
108ATF_TC(fstatat_fderr1);
109ATF_TC_HEAD(fstatat_fderr1, tc)
110{
111	atf_tc_set_md_var(tc, "descr", "See that fstatat fail with bad path");
112}
113ATF_TC_BODY(fstatat_fderr1, tc)
114{
115	int dfd;
116	struct stat st;
117
118	ATF_REQUIRE(mkdir(DIR, 0755) == 0);
119	ATF_REQUIRE((dfd = open(DIR, O_RDONLY, 0)) != -1);
120	ATF_REQUIRE(fstatat(dfd, FILEERR, &st, 0) == -1);
121	ATF_REQUIRE(close(dfd) == 0);
122}
123
124ATF_TC(fstatat_fderr2);
125ATF_TC_HEAD(fstatat_fderr2, tc)
126{
127	atf_tc_set_md_var(tc, "descr", "See that fstatat fails with bad fdat");
128}
129ATF_TC_BODY(fstatat_fderr2, tc)
130{
131	int dfd;
132	int fd;
133	char cwd[MAXPATHLEN];
134	struct stat st;
135
136	ATF_REQUIRE(mkdir(DIR, 0755) == 0);
137	ATF_REQUIRE((fd = open(FILE, O_CREAT|O_RDWR, 0644)) != -1);
138	ATF_REQUIRE(close(fd) == 0);
139
140	ATF_REQUIRE((dfd = open(getcwd(cwd, MAXPATHLEN), O_RDONLY, 0)) != -1);
141	ATF_REQUIRE(fstatat(dfd, BASEFILE, &st, 0) == -1);
142	ATF_REQUIRE(close(dfd) == 0);
143}
144
145ATF_TC(fstatat_fderr3);
146ATF_TC_HEAD(fstatat_fderr3, tc)
147{
148	atf_tc_set_md_var(tc, "descr", "See that fstatat fails with fd as -1");
149}
150ATF_TC_BODY(fstatat_fderr3, tc)
151{
152	int fd;
153	struct stat st;
154
155	ATF_REQUIRE(mkdir(DIR, 0755) == 0);
156	ATF_REQUIRE((fd = open(FILE, O_CREAT|O_RDWR, 0644)) != -1);
157	ATF_REQUIRE(close(fd) == 0);
158
159	ATF_REQUIRE(fstatat(-1, FILE, &st, 0) == -1);
160}
161
162ATF_TC(fstatat_fdlink);
163ATF_TC_HEAD(fstatat_fdlink, tc)
164{
165	atf_tc_set_md_var(tc, "descr", "See that fstatat works on symlink");
166}
167ATF_TC_BODY(fstatat_fdlink, tc)
168{
169	int dfd;
170	struct stat st;
171
172	ATF_REQUIRE(mkdir(DIR, 0755) == 0);
173	ATF_REQUIRE(symlink(FILE, LINK) == 0); /* target does not exists */
174
175	ATF_REQUIRE((dfd = open(DIR, O_RDONLY, 0)) != -1);
176
177	ATF_REQUIRE(fstatat(dfd, BASELINK, &st, 0) == -1);
178	ATF_REQUIRE(errno == ENOENT);
179
180	ATF_REQUIRE(fstatat(dfd, BASELINK, &st, AT_SYMLINK_NOFOLLOW) == 0);
181
182	ATF_REQUIRE(close(dfd) == 0);
183}
184
185ATF_TP_ADD_TCS(tp)
186{
187
188	ATF_TP_ADD_TC(tp, fstatat_fd);
189	ATF_TP_ADD_TC(tp, fstatat_fdcwd);
190	ATF_TP_ADD_TC(tp, fstatat_fdcwderr);
191	ATF_TP_ADD_TC(tp, fstatat_fderr1);
192	ATF_TP_ADD_TC(tp, fstatat_fderr2);
193	ATF_TP_ADD_TC(tp, fstatat_fderr3);
194	ATF_TP_ADD_TC(tp, fstatat_fdlink);
195
196	return atf_no_error();
197}
198