1/* $NetBSD: t_realpath.c,v 1.1 2012/03/17 16:40:14 jruoho 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 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_realpath.c,v 1.1 2012/03/17 16:40:14 jruoho Exp $");
33
34#include <sys/param.h>
35
36#include <atf-c.h>
37#include <fcntl.h>
38#include <stdio.h>
39#include <stdlib.h>
40#include <string.h>
41#include <unistd.h>
42
43static const struct {
44	const char *path;
45	const char *result;
46} paths[] = {
47
48	{ "/",			"/"		},
49	{ "///////",		"/"		},
50	{ "",			NULL		},
51	{ "       ",		NULL		},
52	{ "/      ",		NULL		},
53	{ "      /",		NULL		},
54	{ "/etc///",		"/etc"		},
55	{ "///////etc",		"/etc"		},
56	{ "/a/b/c/d/e",		NULL		},
57	{ "    /usr/bin	   ",	NULL		},
58	{ "\\//////usr//bin",	NULL		},
59	{ "//usr//bin//",	"/usr/bin"	},
60	{ "//////usr//bin//",	"/usr/bin"	},
61	{ "/usr/bin//////////", "/usr/bin"	},
62};
63
64ATF_TC(realpath_basic);
65ATF_TC_HEAD(realpath_basic, tc)
66{
67	atf_tc_set_md_var(tc, "descr", "A basic test of realpath(3)");
68}
69
70ATF_TC_BODY(realpath_basic, tc)
71{
72	char buf[MAXPATHLEN];
73	char *ptr;
74	size_t i;
75
76	for (i = 0; i < __arraycount(paths); i++) {
77
78		(void)memset(buf, '\0', sizeof(buf));
79
80		ptr = realpath(paths[i].path, buf);
81
82		if (ptr == NULL && paths[i].result == NULL)
83			continue;
84
85		if (ptr == NULL && paths[i].result != NULL)
86			atf_tc_fail("realpath failed for '%s'", paths[i].path);
87
88		if (strcmp(paths[i].result, buf) != 0)
89			atf_tc_fail("expected '%s', got '%s'",
90			    paths[i].result, buf);
91	}
92}
93
94ATF_TC(realpath_huge);
95ATF_TC_HEAD(realpath_huge, tc)
96{
97	atf_tc_set_md_var(tc, "descr", "Test huge path with realpath(3)");
98}
99
100ATF_TC_BODY(realpath_huge, tc)
101{
102	char result[MAXPATHLEN] = { 0 };
103	char buffer[MAXPATHLEN] = { 0 };
104
105	(void)memset(buffer, '/', sizeof(buffer) - 1);
106
107	ATF_CHECK(realpath(buffer, result) != NULL);
108	ATF_CHECK(strlen(result) == 1);
109	ATF_CHECK(result[0] == '/');
110}
111
112ATF_TC(realpath_symlink);
113ATF_TC_HEAD(realpath_symlink, tc)
114{
115	atf_tc_set_md_var(tc, "descr", "Test symbolic link with realpath(3)");
116}
117
118ATF_TC_BODY(realpath_symlink, tc)
119{
120	char path[MAXPATHLEN] = { 0 };
121	char slnk[MAXPATHLEN] = { 0 };
122	char resb[MAXPATHLEN] = { 0 };
123	int fd;
124
125	(void)getcwd(path, sizeof(path));
126	(void)getcwd(slnk, sizeof(slnk));
127
128	(void)strlcat(path, "/realpath", sizeof(path));
129	(void)strlcat(slnk, "/symbolic", sizeof(slnk));
130
131	fd = open(path, O_RDONLY | O_CREAT, 0600);
132
133	ATF_REQUIRE(fd >= 0);
134	ATF_REQUIRE(symlink(path, slnk) == 0);
135	ATF_REQUIRE(close(fd) == 0);
136
137	ATF_REQUIRE(realpath(slnk, resb) != NULL);
138	ATF_REQUIRE(strcmp(resb, path) == 0);
139
140	ATF_REQUIRE(unlink(path) == 0);
141	ATF_REQUIRE(unlink(slnk) == 0);
142}
143
144ATF_TP_ADD_TCS(tp)
145{
146
147	ATF_TP_ADD_TC(tp, realpath_basic);
148	ATF_TP_ADD_TC(tp, realpath_huge);
149	ATF_TP_ADD_TC(tp, realpath_symlink);
150
151	return atf_no_error();
152}
153