1 /*
2 * Copyright (C) 2019 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 <log/logprint.h>
18
19 #include <string>
20
21 #include <gtest/gtest.h>
22
23 #include <log/log_read.h>
24
25 using namespace std::string_literals;
26
27 size_t convertPrintable(char*, const char*, size_t);
28
TEST(liblog,convertPrintable_ascii)29 TEST(liblog, convertPrintable_ascii) {
30 auto input = "easy string, output same";
31 auto output_size = convertPrintable(nullptr, input, strlen(input));
32 EXPECT_EQ(output_size, strlen(input));
33
34 char output[output_size + 1];
35 memset(output, 'x', sizeof(output));
36
37 output_size = convertPrintable(output, input, strlen(input));
38 EXPECT_EQ(output_size, strlen(input));
39 EXPECT_STREQ(input, output);
40 }
41
TEST(liblog,convertPrintable_escapes)42 TEST(liblog, convertPrintable_escapes) {
43 std::string input = "escape\x00\x7f\a\b\t\n\v\f\r\\"s;
44 // We want to test escaping of ASCII NUL at the end too.
45 auto input_size = input.size() + 1;
46
47 // Note that \t is not escaped.
48 std::string expected_output = "escape\\x00\\x7F\\a\\b\t\\n\\v\\f\\r\\\\\\x00"s;
49 auto expected_output_size = expected_output.size();
50
51 auto output_size = convertPrintable(nullptr, input.c_str(), input_size);
52 EXPECT_EQ(output_size, expected_output_size) << input_size;
53
54 char output[output_size + 1];
55 memset(output, 'x', sizeof(output));
56
57 output_size = convertPrintable(output, input.c_str(), input_size);
58 EXPECT_EQ(output_size, expected_output_size);
59 EXPECT_STREQ(expected_output.c_str(), output);
60 }
61
TEST(liblog,convertPrintable_validutf8)62 TEST(liblog, convertPrintable_validutf8) {
63 setlocale(LC_ALL, "C.UTF-8");
64
65 const char* input = "¢ह€��";
66 size_t output_size = convertPrintable(nullptr, input, strlen(input));
67 EXPECT_EQ(output_size, strlen(input));
68
69 char output[output_size + 1];
70 memset(output, 'x', sizeof(output));
71
72 output_size = convertPrintable(output, input, strlen(input));
73 EXPECT_EQ(output_size, strlen(input));
74 EXPECT_STREQ(input, output);
75 }
76
TEST(liblog,convertPrintable_invalidutf8)77 TEST(liblog, convertPrintable_invalidutf8) {
78 auto input = "\x80\xC2\x01\xE0\xA4\x06\xE0\x06\xF0\x90\x8D\x06\xF0\x90\x06\xF0\x0E";
79 auto expected_output =
80 "\\x80\\xC2\\x01\\xE0\\xA4\\x06\\xE0\\x06\\xF0\\x90\\x8D\\x06\\xF0\\x90\\x06\\xF0\\x0E";
81 auto output_size = convertPrintable(nullptr, input, strlen(input));
82 EXPECT_EQ(output_size, strlen(expected_output));
83
84 char output[output_size + 1];
85 memset(output, 'x', sizeof(output));
86
87 output_size = convertPrintable(output, input, strlen(input));
88 EXPECT_EQ(output_size, strlen(expected_output));
89 EXPECT_STREQ(expected_output, output);
90 }
91
TEST(liblog,convertPrintable_mixed)92 TEST(liblog, convertPrintable_mixed) {
93 setlocale(LC_ALL, "C.UTF-8");
94
95 const char* input =
96 "\x80\xC2¢ह€��\x01\xE0\xA4\x06¢ह€��\xE0\x06\a\b\xF0\x90¢ह€��\x8D\x06\xF0\t\t\x90\x06\xF0\x0E";
97 const char* expected_output =
98 "\\x80\\xC2¢ह€��\\x01\\xE0\\xA4\\x06¢ह€��\\xE0\\x06\\a\\b\\xF0\\x90¢ह€��\\x8D\\x06\\xF0\t\t"
99 "\\x90\\x06\\xF0\\x0E";
100 size_t output_size = convertPrintable(nullptr, input, strlen(input));
101 EXPECT_EQ(output_size, strlen(expected_output));
102
103 char output[output_size + 1];
104 memset(output, 'x', sizeof(output));
105
106 output_size = convertPrintable(output, input, strlen(input));
107 EXPECT_EQ(output_size, strlen(expected_output));
108 EXPECT_STREQ(expected_output, output);
109 }
110
TEST(liblog,log_print_different_header_size)111 TEST(liblog, log_print_different_header_size) {
112 constexpr int32_t kPid = 123;
113 constexpr uint32_t kTid = 456;
114 constexpr uint32_t kSec = 1000;
115 constexpr uint32_t kNsec = 999;
116 constexpr uint32_t kLid = LOG_ID_MAIN;
117 constexpr uint32_t kUid = 987;
118 constexpr char kPriority = ANDROID_LOG_ERROR;
119
120 auto create_buf = [](char* buf, size_t len, uint16_t hdr_size) {
121 memset(buf, 0, len);
122 logger_entry* header = reinterpret_cast<logger_entry*>(buf);
123 header->hdr_size = hdr_size;
124 header->pid = kPid;
125 header->tid = kTid;
126 header->sec = kSec;
127 header->nsec = kNsec;
128 header->lid = kLid;
129 header->uid = kUid;
130 char* message = buf + header->hdr_size;
131 uint16_t message_len = 0;
132 message[message_len++] = kPriority;
133 message[message_len++] = 'T';
134 message[message_len++] = 'a';
135 message[message_len++] = 'g';
136 message[message_len++] = '\0';
137 message[message_len++] = 'm';
138 message[message_len++] = 's';
139 message[message_len++] = 'g';
140 message[message_len++] = '!';
141 message[message_len++] = '\0';
142 header->len = message_len;
143 };
144
145 auto check_entry = [&](const AndroidLogEntry& entry) {
146 EXPECT_EQ(kSec, static_cast<uint32_t>(entry.tv_sec));
147 EXPECT_EQ(kNsec, static_cast<uint32_t>(entry.tv_nsec));
148 EXPECT_EQ(kPriority, entry.priority);
149 EXPECT_EQ(kUid, static_cast<uint32_t>(entry.uid));
150 EXPECT_EQ(kPid, entry.pid);
151 EXPECT_EQ(kTid, static_cast<uint32_t>(entry.tid));
152 EXPECT_STREQ("Tag", entry.tag);
153 EXPECT_EQ(4U, entry.tagLen); // Apparently taglen includes the nullptr?
154 EXPECT_EQ(4U, entry.messageLen);
155 EXPECT_STREQ("msg!", entry.message);
156 };
157 alignas(logger_entry) char buf[LOGGER_ENTRY_MAX_LEN];
158 create_buf(buf, sizeof(buf), sizeof(logger_entry));
159
160 AndroidLogEntry entry_normal_size;
161 ASSERT_EQ(0,
162 android_log_processLogBuffer(reinterpret_cast<logger_entry*>(buf), &entry_normal_size));
163 check_entry(entry_normal_size);
164
165 create_buf(buf, sizeof(buf), sizeof(logger_entry) + 3);
166 AndroidLogEntry entry_odd_size;
167 ASSERT_EQ(0, android_log_processLogBuffer(reinterpret_cast<logger_entry*>(buf), &entry_odd_size));
168 check_entry(entry_odd_size);
169 }
170