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 <errno.h>
18#include <stdarg.h>
19
20#include <string>
21
22#include <android-base/stringprintf.h>
23#include <log/log.h>
24
25// Forward declarations.
26class Backtrace;
27struct EventTagMap;
28struct AndroidLogEntry;
29
30std::string g_fake_log_buf;
31
32std::string g_fake_log_print;
33
34void resetLogs() {
35  g_fake_log_buf = "";
36  g_fake_log_print = "";
37}
38
39std::string getFakeLogBuf() {
40  return g_fake_log_buf;
41}
42
43std::string getFakeLogPrint() {
44  return g_fake_log_print;
45}
46
47extern "C" int async_safe_format_log(int priority, const char* tag, const char* format, ...) {
48  g_fake_log_print += std::to_string(priority) + ' ';
49  g_fake_log_print += tag;
50  g_fake_log_print += ' ';
51
52  va_list ap;
53  va_start(ap, format);
54  android::base::StringAppendV(&g_fake_log_print, format, ap);
55  va_end(ap);
56
57  g_fake_log_print += '\n';
58
59  return 0;
60}
61
62extern "C" int __android_log_buf_write(int bufId, int prio, const char* tag, const char* msg) {
63  g_fake_log_buf += std::to_string(bufId) + ' ' + std::to_string(prio) + ' ';
64  g_fake_log_buf += tag;
65  g_fake_log_buf += ' ';
66  g_fake_log_buf += msg;
67  return 1;
68}
69
70extern "C" int __android_log_print(int prio, const char* tag, const char* fmt, ...) {
71  g_fake_log_print += std::to_string(prio) + ' ';
72  g_fake_log_print += tag;
73  g_fake_log_print += ' ';
74
75  va_list ap;
76  va_start(ap, fmt);
77  android::base::StringAppendV(&g_fake_log_print, fmt, ap);
78  va_end(ap);
79
80  g_fake_log_print += '\n';
81
82  return 1;
83}
84
85extern "C" log_id_t android_name_to_log_id(const char*) {
86  return LOG_ID_SYSTEM;
87}
88
89extern "C" struct logger_list* android_logger_list_open(log_id_t, int, unsigned int, pid_t) {
90  errno = EACCES;
91  return nullptr;
92}
93
94extern "C" int android_logger_list_read(struct logger_list*, struct log_msg*) {
95  return 0;
96}
97
98extern "C" EventTagMap* android_openEventTagMap(const char*) {
99  return nullptr;
100}
101
102extern "C" int android_log_processBinaryLogBuffer(
103    struct logger_entry*,
104    AndroidLogEntry*, const EventTagMap*, char*, int) {
105  return 0;
106}
107
108extern "C" void android_logger_list_free(struct logger_list*) {
109}
110