1/* $NetBSD: t_closefrom.c,v 1.4 2011/05/11 08:11:36 jruoho Exp $ */
2
3/*-
4 * Copyright (c) 2011 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Jukka Ruohonen.
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_closefrom.c,v 1.4 2011/05/11 08:11:36 jruoho Exp $");
33
34#include <sys/wait.h>
35
36#include <atf-c.h>
37#include <errno.h>
38#include <fcntl.h>
39#include <limits.h>
40#include <unistd.h>
41
42static const char  path[] = "closefrom";
43
44ATF_TC_WITH_CLEANUP(closefrom_basic);
45ATF_TC_HEAD(closefrom_basic, tc)
46{
47	atf_tc_set_md_var(tc, "descr", "A basic test of closefrom(3), #1");
48}
49
50ATF_TC_BODY(closefrom_basic, tc)
51{
52	int fd, cur1, cur2;
53
54	(void)closefrom(STDERR_FILENO + 1);
55
56	fd = open(path, O_RDONLY | O_CREAT, 0400);
57	ATF_REQUIRE(fd >= 0);
58
59	cur1 = fcntl(0, F_MAXFD);
60
61	ATF_REQUIRE(cur1 == STDERR_FILENO + 1);
62	ATF_REQUIRE(closefrom(cur1) == 0);
63
64	cur2 = fcntl(0, F_MAXFD);
65
66	ATF_REQUIRE(cur1 - 1 == cur2);
67	ATF_REQUIRE(close(fd) == -1);
68	ATF_REQUIRE(unlink(path) == 0);
69}
70
71ATF_TC_CLEANUP(closefrom_basic, tc)
72{
73	(void)unlink(path);
74}
75
76ATF_TC_WITH_CLEANUP(closefrom_buffer);
77ATF_TC_HEAD(closefrom_buffer, tc)
78{
79	atf_tc_set_md_var(tc, "descr", "A basic test of closefrom(3), #2");
80}
81
82ATF_TC_BODY(closefrom_buffer, tc)
83{
84	int buf[16], cur, half;
85	size_t i;
86
87	/*
88	 * Open a buffer of descriptors, close the half of
89	 * these and verify that the result is consistent.
90	 */
91	ATF_REQUIRE(closefrom(STDERR_FILENO + 1) == 0);
92
93	cur = fcntl(0, F_MAXFD);
94	ATF_REQUIRE(cur == STDERR_FILENO);
95
96	for (i = 0; i < __arraycount(buf); i++) {
97		buf[i] = open(path, O_RDWR | O_CREAT, 0600);
98		ATF_REQUIRE(buf[i] >= 0);
99	}
100
101	cur = fcntl(0, F_MAXFD);
102	ATF_REQUIRE(cur == __arraycount(buf) + STDERR_FILENO);
103
104	half = STDERR_FILENO + __arraycount(buf) / 2;
105	ATF_REQUIRE(closefrom(half) == 0);
106
107	cur = fcntl(0, F_MAXFD);
108	ATF_REQUIRE(cur == half - 1);
109
110	for (i = 0; i < __arraycount(buf); i++)
111		(void)close(buf[i]);
112}
113
114ATF_TC_CLEANUP(closefrom_buffer, tc)
115{
116	(void)unlink(path);
117}
118
119ATF_TC(closefrom_err);
120ATF_TC_HEAD(closefrom_err, tc)
121{
122	atf_tc_set_md_var(tc, "descr", "Test errors from closefrom(3)");
123}
124
125ATF_TC_BODY(closefrom_err, tc)
126{
127
128	errno = 0;
129	ATF_REQUIRE_ERRNO(EBADF, closefrom(-INT_MAX) == -1);
130}
131
132ATF_TC(closefrom_one);
133ATF_TC_HEAD(closefrom_one, tc)
134{
135	atf_tc_set_md_var(tc, "descr", "Test closefrom(1)");
136}
137
138ATF_TC_BODY(closefrom_one, tc)
139{
140	pid_t pid;
141	int sta;
142
143	pid = fork();
144	ATF_REQUIRE(pid >= 0);
145
146	if (pid == 0) {
147
148		if (closefrom(1) != 0)
149			_exit(10);
150
151		_exit(fcntl(0, F_MAXFD));
152	}
153
154
155	(void)wait(&sta);
156
157	/*
158	 * STDIN_FILENO sould still be open; WEXITSTATUS(1) == 0.
159	 */
160	if (WIFEXITED(sta) == 0 || WEXITSTATUS(sta) != 0)
161		atf_tc_fail("not all descriptors were closed");
162}
163
164ATF_TP_ADD_TCS(tp)
165{
166
167	ATF_TP_ADD_TC(tp, closefrom_basic);
168	ATF_TP_ADD_TC(tp, closefrom_buffer);
169	ATF_TP_ADD_TC(tp, closefrom_err);
170	ATF_TP_ADD_TC(tp, closefrom_one);
171
172	return atf_no_error();
173}
174