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* p, const char* message, size_t messageLen);
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
36 output_size = convertPrintable(output, input, strlen(input));
37 EXPECT_EQ(output_size, strlen(input));
38 EXPECT_STREQ(input, output);
39 }
40
TEST(liblog,convertPrintable_escapes)41 TEST(liblog, convertPrintable_escapes) {
42 std::string input = "escape\x00\a\b\t\v\f\r\\"s;
43 // We want to test escaping of ASCII NUL at the end too.
44 auto input_size = input.size() + 1;
45
46 // Note that \t is not escaped.
47 std::string expected_output = "escape\\x00\\a\\b\t\\v\\f\\r\\\\\\x00"s;
48 auto expected_output_size = expected_output.size();
49
50 auto output_size = convertPrintable(nullptr, input.c_str(), input_size);
51 EXPECT_EQ(output_size, expected_output_size) << input_size;
52
53 char output[output_size + 1];
54
55 output_size = convertPrintable(output, input.c_str(), input_size);
56 EXPECT_EQ(output_size, expected_output_size);
57 EXPECT_STREQ(expected_output.c_str(), output);
58 }
59
TEST(liblog,convertPrintable_validutf8)60 TEST(liblog, convertPrintable_validutf8) {
61 setlocale(LC_ALL, "C.UTF-8");
62
63 auto input = u8"¢ह€��";
64 auto output_size = convertPrintable(nullptr, input, strlen(input));
65 EXPECT_EQ(output_size, strlen(input));
66
67 char output[output_size + 1];
68
69 output_size = convertPrintable(output, input, strlen(input));
70 EXPECT_EQ(output_size, strlen(input));
71 EXPECT_STREQ(input, output);
72 }
73
TEST(liblog,convertPrintable_invalidutf8)74 TEST(liblog, convertPrintable_invalidutf8) {
75 auto input = "\x80\xC2\x01\xE0\xA4\x06\xE0\x06\xF0\x90\x8D\x06\xF0\x90\x06\xF0\x0E";
76 auto expected_output =
77 "\\x80\\xC2\\x01\\xE0\\xA4\\x06\\xE0\\x06\\xF0\\x90\\x8D\\x06\\xF0\\x90\\x06\\xF0\\x0E";
78 auto output_size = convertPrintable(nullptr, input, strlen(input));
79 EXPECT_EQ(output_size, strlen(expected_output));
80
81 char output[output_size + 1];
82
83 output_size = convertPrintable(output, input, strlen(input));
84 EXPECT_EQ(output_size, strlen(expected_output));
85 EXPECT_STREQ(expected_output, output);
86 }
87
TEST(liblog,convertPrintable_mixed)88 TEST(liblog, convertPrintable_mixed) {
89 setlocale(LC_ALL, "C.UTF-8");
90
91 auto input =
92 u8"\x80\xC2¢ह€��\x01\xE0\xA4\x06¢ह€��\xE0\x06\a\b\xF0\x90¢ह€��\x8D\x06\xF0\t\t\x90\x06\xF0\x0E";
93 auto expected_output =
94 u8"\\x80\\xC2¢ह€��\\x01\\xE0\\xA4\\x06¢ह€��\\xE0\\x06\\a\\b\\xF0\\x90¢ह€��\\x8D\\x06\\xF0\t\t"
95 u8"\\x90\\x06\\xF0\\x0E";
96 auto output_size = convertPrintable(nullptr, input, strlen(input));
97 EXPECT_EQ(output_size, strlen(expected_output));
98
99 char output[output_size + 1];
100
101 output_size = convertPrintable(output, input, strlen(input));
102 EXPECT_EQ(output_size, strlen(expected_output));
103 EXPECT_STREQ(expected_output, output);
104 }
105
TEST(liblog,log_print_different_header_size)106 TEST(liblog, log_print_different_header_size) {
107 constexpr int32_t kPid = 123;
108 constexpr uint32_t kTid = 456;
109 constexpr uint32_t kSec = 1000;
110 constexpr uint32_t kNsec = 999;
111 constexpr uint32_t kLid = LOG_ID_MAIN;
112 constexpr uint32_t kUid = 987;
113 constexpr char kPriority = ANDROID_LOG_ERROR;
114
115 auto create_buf = [](char* buf, size_t len, uint16_t hdr_size) {
116 memset(buf, 0, len);
117 logger_entry* header = reinterpret_cast<logger_entry*>(buf);
118 header->hdr_size = hdr_size;
119 header->pid = kPid;
120 header->tid = kTid;
121 header->sec = kSec;
122 header->nsec = kNsec;
123 header->lid = kLid;
124 header->uid = kUid;
125 char* message = buf + header->hdr_size;
126 uint16_t message_len = 0;
127 message[message_len++] = kPriority;
128 message[message_len++] = 'T';
129 message[message_len++] = 'a';
130 message[message_len++] = 'g';
131 message[message_len++] = '\0';
132 message[message_len++] = 'm';
133 message[message_len++] = 's';
134 message[message_len++] = 'g';
135 message[message_len++] = '!';
136 message[message_len++] = '\0';
137 header->len = message_len;
138 };
139
140 auto check_entry = [&](const AndroidLogEntry& entry) {
141 EXPECT_EQ(kSec, static_cast<uint32_t>(entry.tv_sec));
142 EXPECT_EQ(kNsec, static_cast<uint32_t>(entry.tv_nsec));
143 EXPECT_EQ(kPriority, entry.priority);
144 EXPECT_EQ(kUid, static_cast<uint32_t>(entry.uid));
145 EXPECT_EQ(kPid, entry.pid);
146 EXPECT_EQ(kTid, static_cast<uint32_t>(entry.tid));
147 EXPECT_STREQ("Tag", entry.tag);
148 EXPECT_EQ(4U, entry.tagLen); // Apparently taglen includes the nullptr?
149 EXPECT_EQ(4U, entry.messageLen);
150 EXPECT_STREQ("msg!", entry.message);
151 };
152 alignas(logger_entry) char buf[LOGGER_ENTRY_MAX_LEN];
153 create_buf(buf, sizeof(buf), sizeof(logger_entry));
154
155 AndroidLogEntry entry_normal_size;
156 ASSERT_EQ(0,
157 android_log_processLogBuffer(reinterpret_cast<logger_entry*>(buf), &entry_normal_size));
158 check_entry(entry_normal_size);
159
160 create_buf(buf, sizeof(buf), sizeof(logger_entry) + 3);
161 AndroidLogEntry entry_odd_size;
162 ASSERT_EQ(0, android_log_processLogBuffer(reinterpret_cast<logger_entry*>(buf), &entry_odd_size));
163 check_entry(entry_odd_size);
164 }
165