1 /*
2 * Copyright (C) 2015 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 #include <gtest/gtest.h>
18
19 #include "sysdeps.h"
20
21 #include <android-base/test_utils.h>
22
TEST(sysdeps_win32,adb_getenv)23 TEST(sysdeps_win32, adb_getenv) {
24 // Insert all test env vars before first call to adb_getenv() which will
25 // read the env var block only once.
26 ASSERT_EQ(0, _putenv("SYSDEPS_WIN32_TEST_UPPERCASE=1"));
27 ASSERT_EQ(0, _putenv("sysdeps_win32_test_lowercase=2"));
28 ASSERT_EQ(0, _putenv("Sysdeps_Win32_Test_MixedCase=3"));
29
30 // UTF-16 value
31 ASSERT_EQ(0, _wputenv(L"SYSDEPS_WIN32_TEST_UNICODE=\u00a1\u0048\u006f\u006c"
32 L"\u0061\u0021\u03b1\u03b2\u03b3\u0061\u006d\u0062"
33 L"\u0075\u006c\u014d\u043f\u0440\u0438\u0432\u0435"
34 L"\u0442"));
35
36 // Search for non-existant env vars.
37 EXPECT_STREQ(nullptr, adb_getenv("SYSDEPS_WIN32_TEST_NONEXISTANT"));
38
39 // Search for existing env vars.
40
41 // There is no test for an env var with a value of a zero-length string
42 // because _putenv() does not support inserting such an env var.
43
44 // Search for env var that is uppercase.
45 EXPECT_STREQ("1", adb_getenv("SYSDEPS_WIN32_TEST_UPPERCASE"));
46 EXPECT_STREQ("1", adb_getenv("sysdeps_win32_test_uppercase"));
47 EXPECT_STREQ("1", adb_getenv("Sysdeps_Win32_Test_Uppercase"));
48
49 // Search for env var that is lowercase.
50 EXPECT_STREQ("2", adb_getenv("SYSDEPS_WIN32_TEST_LOWERCASE"));
51 EXPECT_STREQ("2", adb_getenv("sysdeps_win32_test_lowercase"));
52 EXPECT_STREQ("2", adb_getenv("Sysdeps_Win32_Test_Lowercase"));
53
54 // Search for env var that is mixed-case.
55 EXPECT_STREQ("3", adb_getenv("SYSDEPS_WIN32_TEST_MIXEDCASE"));
56 EXPECT_STREQ("3", adb_getenv("sysdeps_win32_test_mixedcase"));
57 EXPECT_STREQ("3", adb_getenv("Sysdeps_Win32_Test_MixedCase"));
58
59 // Check that UTF-16 was converted to UTF-8.
60 EXPECT_STREQ("\xc2\xa1\x48\x6f\x6c\x61\x21\xce\xb1\xce\xb2\xce\xb3\x61\x6d"
61 "\x62\x75\x6c\xc5\x8d\xd0\xbf\xd1\x80\xd0\xb8\xd0\xb2\xd0\xb5"
62 "\xd1\x82",
63 adb_getenv("SYSDEPS_WIN32_TEST_UNICODE"));
64
65 // Check an env var that should always be set.
66 const char* path_val = adb_getenv("PATH");
67 EXPECT_NE(nullptr, path_val);
68 if (path_val != nullptr) {
69 EXPECT_GT(strlen(path_val), 0U);
70 }
71 }
72
TestAdbStrError(int err,const char * expected)73 void TestAdbStrError(int err, const char* expected) {
74 errno = 12345;
75 const char* result = adb_strerror(err);
76 // Check that errno is not overwritten.
77 EXPECT_EQ(12345, errno);
78 EXPECT_STREQ(expected, result);
79 }
80
TEST(sysdeps_win32,adb_strerror)81 TEST(sysdeps_win32, adb_strerror) {
82 // Test an error code that should not have a mapped string. Use an error
83 // code that is not used by the internal implementation of adb_strerror().
84 TestAdbStrError(-2, "Unknown error");
85 // adb_strerror() uses -1 internally, so test that it can still be passed
86 // as a parameter.
87 TestAdbStrError(-1, "Unknown error");
88 // Test very big, positive unknown error.
89 TestAdbStrError(1000000, "Unknown error");
90
91 // Test success case.
92 // Wine returns "Success" for strerror(0), Windows returns "No error", so accept both.
93 std::string success = adb_strerror(0);
94 EXPECT_TRUE(success == "Success" || success == "No error") << "strerror(0) = " << success;
95
96 // Test error that regular strerror() should have a string for.
97 TestAdbStrError(EPERM, "Operation not permitted");
98 // Test error that regular strerror() doesn't have a string for, but that
99 // adb_strerror() returns.
100 TestAdbStrError(ECONNRESET, "Connection reset by peer");
101 }
102
TEST(sysdeps_win32,unix_isatty)103 TEST(sysdeps_win32, unix_isatty) {
104 // stdin and stdout should be consoles. Use CONIN$ and CONOUT$ special files
105 // so that we can test this even if stdin/stdout have been redirected. Read
106 // permissions are required for unix_isatty().
107 int conin_fd = unix_open("CONIN$", O_RDONLY);
108 int conout_fd = unix_open("CONOUT$", O_RDWR);
109 for (const int fd : {conin_fd, conout_fd}) {
110 EXPECT_TRUE(fd >= 0);
111 EXPECT_EQ(1, unix_isatty(fd));
112 EXPECT_EQ(0, unix_close(fd));
113 }
114
115 // nul returns 1 from isatty(), make sure unix_isatty() corrects that.
116 for (auto flags : {O_RDONLY, O_RDWR}) {
117 int nul_fd = unix_open("nul", flags);
118 EXPECT_TRUE(nul_fd >= 0);
119 EXPECT_EQ(0, unix_isatty(nul_fd));
120 EXPECT_EQ(0, unix_close(nul_fd));
121 }
122
123 // Check a real file, both read-write and read-only.
124 TemporaryFile temp_file;
125 EXPECT_TRUE(temp_file.fd >= 0);
126 EXPECT_EQ(0, unix_isatty(temp_file.fd));
127
128 int temp_file_ro_fd = unix_open(temp_file.path, O_RDONLY);
129 EXPECT_TRUE(temp_file_ro_fd >= 0);
130 EXPECT_EQ(0, unix_isatty(temp_file_ro_fd));
131 EXPECT_EQ(0, unix_close(temp_file_ro_fd));
132
133 // Check a real OS pipe.
134 int pipe_fds[2];
135 EXPECT_EQ(0, _pipe(pipe_fds, 64, _O_BINARY));
136 EXPECT_EQ(0, unix_isatty(pipe_fds[0]));
137 EXPECT_EQ(0, unix_isatty(pipe_fds[1]));
138 EXPECT_EQ(0, _close(pipe_fds[0]));
139 EXPECT_EQ(0, _close(pipe_fds[1]));
140
141 // Make sure an invalid FD is handled correctly.
142 EXPECT_EQ(0, unix_isatty(-1));
143 }
144
TestParseCompleteUTF8(const char * buf,const size_t buf_size,const size_t expected_complete_bytes,const std::vector<char> & expected_remaining_bytes)145 void TestParseCompleteUTF8(const char* buf, const size_t buf_size,
146 const size_t expected_complete_bytes,
147 const std::vector<char>& expected_remaining_bytes) {
148 std::vector<char> remaining_bytes;
149 const size_t complete_bytes = internal::ParseCompleteUTF8(buf, buf + buf_size,
150 &remaining_bytes);
151 EXPECT_EQ(expected_complete_bytes, complete_bytes);
152 EXPECT_EQ(expected_remaining_bytes, remaining_bytes);
153 }
154
TEST(sysdeps_win32,ParseCompleteUTF8)155 TEST(sysdeps_win32, ParseCompleteUTF8) {
156 const std::vector<std::vector<char>> multi_byte_sequences = {
157 { '\xc2', '\xa9' }, // 2 byte UTF-8 sequence
158 { '\xe1', '\xb4', '\xa8' }, // 3 byte UTF-8 sequence
159 { '\xf0', '\x9f', '\x98', '\x80' }, // 4 byte UTF-8 sequence
160 };
161 std::vector<std::vector<char>> all_sequences = {
162 {}, // 0 bytes
163 { '\0' }, // NULL byte
164 { 'a' }, // 1 byte UTF-8 sequence
165 };
166 all_sequences.insert(all_sequences.end(), multi_byte_sequences.begin(),
167 multi_byte_sequences.end());
168
169 // Vary a prefix of bytes in front of the sequence that we're actually interested in parsing.
170 for (const auto& prefix : all_sequences) {
171 // Parse (prefix + one byte of the sequence at a time)
172 for (const auto& seq : multi_byte_sequences) {
173 std::vector<char> buffer(prefix);
174
175 // For every byte of the sequence except the last
176 for (size_t i = 0; i < seq.size() - 1; ++i) {
177 buffer.push_back(seq[i]);
178
179 // When parsing an incomplete UTF-8 sequence, the amount of the buffer preceding
180 // the start of the incomplete UTF-8 sequence is valid. The remaining bytes are the
181 // bytes of the incomplete UTF-8 sequence.
182 TestParseCompleteUTF8(buffer.data(), buffer.size(), prefix.size(),
183 std::vector<char>(seq.begin(), seq.begin() + i + 1));
184 }
185
186 // For the last byte of the sequence
187 buffer.push_back(seq.back());
188 TestParseCompleteUTF8(buffer.data(), buffer.size(), buffer.size(), std::vector<char>());
189 }
190
191 // Parse (prefix (aka sequence) + invalid trailing bytes) to verify that the invalid
192 // trailing bytes are immediately "returned" to prevent them from being stuck in some
193 // buffer.
194 std::vector<char> buffer(prefix);
195 for (size_t i = 0; i < 8; ++i) {
196 buffer.push_back(0x80); // trailing byte
197 TestParseCompleteUTF8(buffer.data(), buffer.size(), buffer.size(), std::vector<char>());
198 }
199 }
200 }
201