summaryrefslogtreecommitdiff
path: root/server/tests/check_and_open-tests.c
blob: 2e9645571b39830915301ee88718a5aae38b363a (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
/*
    SSSD

    Utilities tests check_and_open

    Authors:
        Sumit Bose <sbose@redhat.com>

    Copyright (C) 2009 Red Hat

    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 3 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/

#include <stdlib.h>
#include <check.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>

#include "util/util.h"

#define SUFFIX ".symlink"

char filename[] = "check_and_open-tests-XXXXXX";
uid_t uid;
gid_t gid;
mode_t mode;
int fd;

void setup_check_and_open(void)
{
    int ret;

    ret = mkstemp(filename);
    fail_unless(ret != -1, "mkstemp failed [%d][%s]", errno, strerror(errno));
    close(ret);

    uid = getuid();
    gid = getgid();
    mode = (S_IRUSR | S_IWUSR);
    fd = -1;
}

void teardown_check_and_open(void)
{
    int ret;

    if (fd != -1) {
        ret = close(fd);
        fail_unless(ret == 0, "close failed [%d][%s]", errno, strerror(errno));
    }

    fail_unless(filename != NULL, "unknown filename");
    ret = unlink(filename);
    fail_unless(ret == 0, "unlink failed [%d][%s]", errno, strerror(errno));
}

START_TEST(test_wrong_filename)
{
    int ret;

    ret = check_and_open_readonly("/bla/bla/bla", &fd, uid, gid, mode);
    fail_unless(ret == ENOENT,
                "check_and_open_readonly succeeded on non-existing file");
    fail_unless(fd == -1, "check_and_open_readonly file descriptor not -1");
}
END_TEST

START_TEST(test_symlink)
{
    int ret;
    char *newpath;
    size_t newpath_length;

    newpath_length = strlen(filename) + strlen(SUFFIX) + 1;
    newpath = malloc((newpath_length) * sizeof(char));
    fail_unless(newpath != NULL, "malloc failed");

    ret = snprintf(newpath, newpath_length, "%s%s", filename, SUFFIX);
    fail_unless(ret == newpath_length - 1,
                "snprintf failed: expected [%d] got [%d]", newpath_length -1,
                                                           ret);

    ret = symlink(filename, newpath);
    fail_unless(ret == 0, "symlink failed [%d][%s]", ret, strerror(ret));

    ret = check_and_open_readonly(newpath, &fd, uid, gid, mode);
    unlink(newpath);
    fail_unless(ret == EINVAL,
                "check_and_open_readonly succeeded on symlink");
    fail_unless(fd == -1, "check_and_open_readonly file descriptor not -1");
}
END_TEST

START_TEST(test_not_regular_file)
{
    int ret;

    ret = check_and_open_readonly("/dev/null", &fd, uid, gid, mode);
    fail_unless(ret == EINVAL,
                "check_and_open_readonly succeeded on non-regular file");
    fail_unless(fd == -1, "check_and_open_readonly file descriptor not -1");
}
END_TEST

START_TEST(test_wrong_uid)
{
    int ret;

    ret = check_and_open_readonly(filename, &fd, uid+1, gid, mode);
    fail_unless(ret == EINVAL,
                "check_and_open_readonly succeeded with wrong uid");
    fail_unless(fd == -1, "check_and_open_readonly file descriptor not -1");
}
END_TEST

START_TEST(test_wrong_gid)
{
    int ret;

    ret = check_and_open_readonly(filename, &fd, uid, gid+1, mode);
    fail_unless(ret == EINVAL,
                "check_and_open_readonly succeeded with wrong gid");
    fail_unless(fd == -1, "check_and_open_readonly file descriptor not -1");
}
END_TEST

START_TEST(test_wrong_permission)
{
    int ret;

    ret = check_and_open_readonly(filename, &fd, uid, gid, (mode|S_IWOTH));
    fail_unless(ret == EINVAL,
                "check_and_open_readonly succeeded with wrong mode");
    fail_unless(fd == -1, "check_and_open_readonly file descriptor not -1");
}
END_TEST

START_TEST(test_ok)
{
    int ret;

    ret = check_and_open_readonly(filename, &fd, uid, gid, mode);
    fail_unless(ret == EOK,
                "check_and_open_readonly failed");
    fail_unless(fd >= 0,
                "check_and_open_readonly returned illegal file descriptor");
}
END_TEST

START_TEST(test_write)
{
    int ret;
    ssize_t size;
    errno_t my_errno;

    ret = check_and_open_readonly(filename, &fd, uid, gid, mode);
    fail_unless(ret == EOK,
                "check_and_open_readonly failed");
    fail_unless(fd >= 0,
                "check_and_open_readonly returned illegal file descriptor");

    size = write(fd, "abc", 3);
    my_errno = errno;
    fail_unless(size == -1, "check_and_open_readonly file is not readonly");
    fail_unless(my_errno == EBADF,
                "write failed for other reason than readonly");
}
END_TEST

Suite *check_and_open_suite (void)
{
    Suite *s = suite_create ("check_and_open");

    TCase *tc_check_and_open_readonly = tcase_create ("check_and_open_readonly");
    tcase_add_checked_fixture (tc_check_and_open_readonly,
                               setup_check_and_open,
                               teardown_check_and_open);
    tcase_add_test (tc_check_and_open_readonly, test_wrong_filename);
    tcase_add_test (tc_check_and_open_readonly, test_not_regular_file);
    tcase_add_test (tc_check_and_open_readonly, test_symlink);
    tcase_add_test (tc_check_and_open_readonly, test_wrong_uid);
    tcase_add_test (tc_check_and_open_readonly, test_wrong_gid);
    tcase_add_test (tc_check_and_open_readonly, test_wrong_permission);
    tcase_add_test (tc_check_and_open_readonly, test_ok);
    tcase_add_test (tc_check_and_open_readonly, test_write);
    suite_add_tcase (s, tc_check_and_open_readonly);

    return s;
}

int main(void)
{
  int number_failed;
  Suite *s = check_and_open_suite ();
  SRunner *sr = srunner_create (s);
  /* If CK_VERBOSITY is set, use that, otherwise it defaults to CK_NORMAL */
  srunner_run_all(sr, CK_ENV);
  number_failed = srunner_ntests_failed (sr);
  srunner_free (sr);
  return (number_failed == 0) ? EXIT_SUCCESS : EXIT_FAILURE;
}