1 /*
2  * QEMU I/O channel file test
3  *
4  * Copyright (c) 2015 Red Hat, Inc.
5  *
6  * This library is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU Lesser General Public
8  * License as published by the Free Software Foundation; either
9  * version 2.1 of the License, or (at your option) any later version.
10  *
11  * This library is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
14  * Lesser General Public License for more details.
15  *
16  * You should have received a copy of the GNU Lesser General Public
17  * License along with this library; if not, see <http://www.gnu.org/licenses/>.
18  *
19  */
20 
21 #include "qemu/osdep.h"
22 #include "io/channel-file.h"
23 #include "io/channel-util.h"
24 #include "io-channel-helpers.h"
25 #include "qapi/error.h"
26 #include "qemu/module.h"
27 
28 #define TEST_FILE "tests/test-io-channel-file.txt"
29 #define TEST_MASK 0600
30 
31 /*
32  * On Windows the stat() function in the C library checks only
33  * the FAT-style READONLY attribute and does not look at the ACL at all.
34  */
35 #ifdef _WIN32
36 #define TEST_MASK_EXPECT 0700
37 #else
38 #define TEST_MASK_EXPECT 0777
39 #endif
40 
41 static void test_io_channel_file_helper(int flags)
42 {
43     QIOChannel *src, *dst;
44     QIOChannelTest *test;
45     struct stat st;
46     mode_t mask;
47     int ret;
48 
49     unlink(TEST_FILE);
50     src = QIO_CHANNEL(qio_channel_file_new_path(
51                           TEST_FILE,
52                           flags, TEST_MASK,
53                           &error_abort));
54     dst = QIO_CHANNEL(qio_channel_file_new_path(
55                           TEST_FILE,
56                           O_RDONLY | O_BINARY, 0,
57                           &error_abort));
58 
59     test = qio_channel_test_new();
60     qio_channel_test_run_writer(test, src);
61     qio_channel_test_run_reader(test, dst);
62     qio_channel_test_validate(test);
63 
64     /* Check that the requested mode took effect. */
65     mask = umask(0);
66     umask(mask);
67     ret = stat(TEST_FILE, &st);
68     g_assert_cmpint(ret, >, -1);
69     g_assert_cmpuint(TEST_MASK & ~mask, ==, st.st_mode & TEST_MASK_EXPECT);
70 
71     unlink(TEST_FILE);
72     object_unref(OBJECT(src));
73     object_unref(OBJECT(dst));
74 }
75 
76 static void test_io_channel_file(void)
77 {
78     test_io_channel_file_helper(O_WRONLY | O_CREAT | O_TRUNC | O_BINARY);
79 }
80 
81 static void test_io_channel_file_rdwr(void)
82 {
83     test_io_channel_file_helper(O_RDWR | O_CREAT | O_TRUNC | O_BINARY);
84 }
85 
86 static void test_io_channel_fd(void)
87 {
88     QIOChannel *ioc;
89     int fd = -1;
90 
91     fd = open(TEST_FILE, O_CREAT | O_TRUNC | O_WRONLY, 0600);
92     g_assert_cmpint(fd, >, -1);
93 
94     ioc = qio_channel_new_fd(fd, &error_abort);
95 
96     g_assert_cmpstr(object_get_typename(OBJECT(ioc)),
97                     ==,
98                     TYPE_QIO_CHANNEL_FILE);
99 
100     unlink(TEST_FILE);
101     object_unref(OBJECT(ioc));
102 }
103 
104 
105 #ifndef _WIN32
106 static void test_io_channel_pipe(bool async)
107 {
108     QIOChannel *src, *dst;
109     QIOChannelTest *test;
110     int fd[2];
111 
112     if (pipe(fd) < 0) {
113         perror("pipe");
114         abort();
115     }
116 
117     src = QIO_CHANNEL(qio_channel_file_new_fd(fd[1]));
118     dst = QIO_CHANNEL(qio_channel_file_new_fd(fd[0]));
119 
120     test = qio_channel_test_new();
121     qio_channel_test_run_threads(test, async, src, dst);
122     qio_channel_test_validate(test);
123 
124     object_unref(OBJECT(src));
125     object_unref(OBJECT(dst));
126 }
127 
128 
129 static void test_io_channel_pipe_async(void)
130 {
131     test_io_channel_pipe(true);
132 }
133 
134 static void test_io_channel_pipe_sync(void)
135 {
136     test_io_channel_pipe(false);
137 }
138 #endif /* ! _WIN32 */
139 
140 
141 int main(int argc, char **argv)
142 {
143     module_call_init(MODULE_INIT_QOM);
144 
145     g_test_init(&argc, &argv, NULL);
146 
147     g_test_add_func("/io/channel/file", test_io_channel_file);
148     g_test_add_func("/io/channel/file/rdwr", test_io_channel_file_rdwr);
149     g_test_add_func("/io/channel/file/fd", test_io_channel_fd);
150 #ifndef _WIN32
151     g_test_add_func("/io/channel/pipe/sync", test_io_channel_pipe_sync);
152     g_test_add_func("/io/channel/pipe/async", test_io_channel_pipe_async);
153 #endif
154     return g_test_run();
155 }
156