t_fchmodat.c revision 313535 
1/*	$NetBSD: t_fchmodat.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_fchmodat.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/fchmodat"
47#define BASEFILE "fchmodat"
48#define LINK "dir/symlink"
49#define BASELINK "symlink"
50#define FILEERR "dir/fchmodaterr"
51
52ATF_TC(fchmodat_fd);
53ATF_TC_HEAD(fchmodat_fd, tc)
54{
55	atf_tc_set_md_var(tc, "descr", "See that fchmodat works with fd");
56}
57ATF_TC_BODY(fchmodat_fd, tc)
58{
59	int dfd;
60	int fd;
61	struct stat st;
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(fchmodat(dfd, BASEFILE, 0600, 0) == 0);
69	ATF_REQUIRE(close(dfd) == 0);
70
71	ATF_REQUIRE(stat(FILE, &st) == 0);
72	ATF_REQUIRE(st.st_mode = 0600);
73}
74
75ATF_TC(fchmodat_fdcwd);
76ATF_TC_HEAD(fchmodat_fdcwd, tc)
77{
78	atf_tc_set_md_var(tc, "descr",
79			  "See that fchmodat works with fd as AT_FDCWD");
80}
81ATF_TC_BODY(fchmodat_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(fchmodat(AT_FDCWD, BASEFILE, 0600, 0) == 0);
92
93	ATF_REQUIRE(stat(BASEFILE, &st) == 0);
94	ATF_REQUIRE(st.st_mode = 0600);
95}
96
97ATF_TC(fchmodat_fdcwderr);
98ATF_TC_HEAD(fchmodat_fdcwderr, tc)
99{
100	atf_tc_set_md_var(tc, "descr",
101		  "See that fchmodat fails with fd as AT_FDCWD and bad path");
102}
103ATF_TC_BODY(fchmodat_fdcwderr, tc)
104{
105	ATF_REQUIRE(mkdir(DIR, 0755) == 0);
106	ATF_REQUIRE(fchmodat(AT_FDCWD, FILEERR, 0600, 0) == -1);
107}
108
109ATF_TC(fchmodat_fderr1);
110ATF_TC_HEAD(fchmodat_fderr1, tc)
111{
112	atf_tc_set_md_var(tc, "descr", "See that fchmodat fail with bad path");
113}
114ATF_TC_BODY(fchmodat_fderr1, tc)
115{
116	int dfd;
117
118	ATF_REQUIRE(mkdir(DIR, 0755) == 0);
119	ATF_REQUIRE((dfd = open(DIR, O_RDONLY, 0)) != -1);
120	ATF_REQUIRE(fchmodat(dfd, FILEERR, 0600, 0) == -1);
121	ATF_REQUIRE(close(dfd) == 0);
122}
123
124ATF_TC(fchmodat_fderr2);
125ATF_TC_HEAD(fchmodat_fderr2, tc)
126{
127	atf_tc_set_md_var(tc, "descr", "See that fchmodat fails with bad fdat");
128}
129ATF_TC_BODY(fchmodat_fderr2, tc)
130{
131	int dfd;
132	int fd;
133	char cwd[MAXPATHLEN];
134
135	ATF_REQUIRE(mkdir(DIR, 0755) == 0);
136	ATF_REQUIRE((fd = open(FILE, O_CREAT|O_RDWR, 0644)) != -1);
137	ATF_REQUIRE(close(fd) == 0);
138
139	ATF_REQUIRE((dfd = open(getcwd(cwd, MAXPATHLEN), O_RDONLY, 0)) != -1);
140	ATF_REQUIRE(fchmodat(dfd, BASEFILE, 0600, 0) == -1);
141	ATF_REQUIRE(close(dfd) == 0);
142}
143
144ATF_TC(fchmodat_fderr3);
145ATF_TC_HEAD(fchmodat_fderr3, tc)
146{
147	atf_tc_set_md_var(tc, "descr", "See that fchmodat fails with fd as -1");
148}
149ATF_TC_BODY(fchmodat_fderr3, tc)
150{
151	int fd;
152
153	ATF_REQUIRE(mkdir(DIR, 0755) == 0);
154	ATF_REQUIRE((fd = open(FILE, O_CREAT|O_RDWR, 0644)) != -1);
155	ATF_REQUIRE(close(fd) == 0);
156
157	ATF_REQUIRE(fchmodat(-1, FILE, 0600, 0) == -1);
158}
159
160ATF_TC(fchmodat_fdlink);
161ATF_TC_HEAD(fchmodat_fdlink, tc)
162{
163	atf_tc_set_md_var(tc, "descr", "See that fchmodat works on symlink");
164}
165ATF_TC_BODY(fchmodat_fdlink, tc)
166{
167	int dfdlink;
168	struct stat st;
169
170	ATF_REQUIRE(mkdir(DIR, 0755) == 0);
171	ATF_REQUIRE(symlink(FILE, LINK) == 0);
172
173	ATF_REQUIRE((dfdlink = open(DIR, O_RDONLY, 0)) != -1);
174
175	ATF_REQUIRE(fchmodat(dfdlink, BASELINK, 0600, 0) == -1);
176	ATF_REQUIRE(errno = ENOENT);
177
178	ATF_REQUIRE(fchmodat(dfdlink, BASELINK, 0600, AT_SYMLINK_NOFOLLOW) == 0);
179
180	ATF_REQUIRE(close(dfdlink) == 0);
181
182	ATF_REQUIRE(lstat(LINK, &st) == 0);
183	ATF_REQUIRE(st.st_mode = 0600);
184}
185
186ATF_TP_ADD_TCS(tp)
187{
188
189	ATF_TP_ADD_TC(tp, fchmodat_fd);
190	ATF_TP_ADD_TC(tp, fchmodat_fdcwd);
191	ATF_TP_ADD_TC(tp, fchmodat_fdcwderr);
192	ATF_TP_ADD_TC(tp, fchmodat_fderr1);
193	ATF_TP_ADD_TC(tp, fchmodat_fderr2);
194	ATF_TP_ADD_TC(tp, fchmodat_fderr3);
195	ATF_TP_ADD_TC(tp, fchmodat_fdlink);
196
197	return atf_no_error();
198}
199