1 /* $NetBSD: t_realpath.c,v 1.2 2012/03/27 07:54:58 njoly 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 1.2 2012/03/27 07:54:58 njoly Exp $");
33
34 #include <sys/param.h>
35
36 #include <atf-c.h>
37 #ifdef __FreeBSD__
38 #include <errno.h>
39 #endif
40 #include <fcntl.h>
41 #include <stdio.h>
42 #include <stdlib.h>
43 #include <string.h>
44 #include <unistd.h>
45
46 static const struct {
47 const char *path;
48 const char *result;
49 } paths[] = {
50
51 { "/", "/" },
52 { "///////", "/" },
53 { "", NULL },
54 { " ", NULL },
55 { "/ ", NULL },
56 { " /", NULL },
57 { "/etc///", "/etc" },
58 { "///////etc", "/etc" },
59 { "/a/b/c/d/e", NULL },
60 { " /usr/bin ", NULL },
61 { "\\//////usr//bin", NULL },
62 { "//usr//bin//", "/usr/bin" },
63 { "//////usr//bin//", "/usr/bin" },
64 { "/usr/bin//////////", "/usr/bin" },
65 };
66
67 ATF_TC(realpath_basic);
ATF_TC_HEAD(realpath_basic,tc)68 ATF_TC_HEAD(realpath_basic, tc)
69 {
70 atf_tc_set_md_var(tc, "descr", "A basic test of realpath(3)");
71 }
72
ATF_TC_BODY(realpath_basic,tc)73 ATF_TC_BODY(realpath_basic, tc)
74 {
75 char buf[MAXPATHLEN];
76 char *ptr;
77 size_t i;
78
79 for (i = 0; i < __arraycount(paths); i++) {
80
81 (void)memset(buf, '\0', sizeof(buf));
82
83 ptr = realpath(paths[i].path, buf);
84
85 if (ptr == NULL && paths[i].result == NULL)
86 continue;
87
88 if (ptr == NULL && paths[i].result != NULL)
89 atf_tc_fail("realpath failed for '%s'", paths[i].path);
90
91 if (strcmp(paths[i].result, buf) != 0)
92 atf_tc_fail("expected '%s', got '%s'",
93 paths[i].result, buf);
94 }
95 }
96
97 ATF_TC(realpath_huge);
ATF_TC_HEAD(realpath_huge,tc)98 ATF_TC_HEAD(realpath_huge, tc)
99 {
100 atf_tc_set_md_var(tc, "descr", "Test huge path with realpath(3)");
101 }
102
ATF_TC_BODY(realpath_huge,tc)103 ATF_TC_BODY(realpath_huge, tc)
104 {
105 char result[MAXPATHLEN] = { 0 };
106 char buffer[MAXPATHLEN] = { 0 };
107
108 (void)memset(buffer, '/', sizeof(buffer) - 1);
109
110 ATF_CHECK(realpath(buffer, result) != NULL);
111 ATF_CHECK(strlen(result) == 1);
112 ATF_CHECK(result[0] == '/');
113 }
114
115 ATF_TC(realpath_symlink);
ATF_TC_HEAD(realpath_symlink,tc)116 ATF_TC_HEAD(realpath_symlink, tc)
117 {
118 atf_tc_set_md_var(tc, "descr", "Test symbolic link with realpath(3)");
119 }
120
ATF_TC_BODY(realpath_symlink,tc)121 ATF_TC_BODY(realpath_symlink, tc)
122 {
123 char path[MAXPATHLEN] = { 0 };
124 char slnk[MAXPATHLEN] = { 0 };
125 char resb[MAXPATHLEN] = { 0 };
126 int fd;
127
128 #ifdef __FreeBSD__
129 ATF_REQUIRE_MSG(getcwd(path, sizeof(path)) != NULL,
130 "getcwd(path) failed: %s", strerror(errno));
131 ATF_REQUIRE_MSG(getcwd(slnk, sizeof(slnk)) != NULL,
132 "getcwd(slnk) failed: %s", strerror(errno));
133 #else
134 (void)getcwd(path, sizeof(path));
135 (void)getcwd(slnk, sizeof(slnk));
136 #endif
137
138 (void)strlcat(path, "/realpath", sizeof(path));
139 (void)strlcat(slnk, "/symbolic", sizeof(slnk));
140
141 fd = open(path, O_RDONLY | O_CREAT, 0600);
142
143 ATF_REQUIRE(fd >= 0);
144 ATF_REQUIRE(symlink(path, slnk) == 0);
145 ATF_REQUIRE(close(fd) == 0);
146
147 ATF_REQUIRE(realpath(slnk, resb) != NULL);
148 ATF_REQUIRE(strcmp(resb, path) == 0);
149
150 ATF_REQUIRE(unlink(path) == 0);
151 ATF_REQUIRE(unlink(slnk) == 0);
152 }
153
ATF_TP_ADD_TCS(tp)154 ATF_TP_ADD_TCS(tp)
155 {
156
157 ATF_TP_ADD_TC(tp, realpath_basic);
158 ATF_TP_ADD_TC(tp, realpath_huge);
159 ATF_TP_ADD_TC(tp, realpath_symlink);
160
161 return atf_no_error();
162 }
163