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#include <log/logger.h>
25
26// Forward declarations.
27class Backtrace;
28struct EventTagMap;
29struct AndroidLogEntry;
30
31std::string g_fake_log_buf;
32
33std::string g_fake_log_print;
34
35void resetLogs() {
36  g_fake_log_buf = "";
37  g_fake_log_print = "";
38}
39
40std::string getFakeLogBuf() {
41  return g_fake_log_buf;
42}
43
44std::string getFakeLogPrint() {
45  return g_fake_log_print;
46}
47
48extern "C" int __libc_format_log(int priority, const char* tag, const char* format, ...) {
49  g_fake_log_print += std::to_string(priority) + ' ';
50  g_fake_log_print += tag;
51  g_fake_log_print += ' ';
52
53  va_list ap;
54  va_start(ap, format);
55  android::base::StringAppendV(&g_fake_log_print, format, ap);
56  va_end(ap);
57
58  g_fake_log_print += '\n';
59
60  return 0;
61}
62
63extern "C" int __android_log_buf_write(int bufId, int prio, const char* tag, const char* msg) {
64  g_fake_log_buf += std::to_string(bufId) + ' ' + std::to_string(prio) + ' ';
65  g_fake_log_buf += tag;
66  g_fake_log_buf += ' ';
67  g_fake_log_buf += msg;
68  return 1;
69}
70
71extern "C" int __android_log_print(int prio, const char* tag, const char* fmt, ...) {
72  g_fake_log_print += std::to_string(prio) + ' ';
73  g_fake_log_print += tag;
74  g_fake_log_print += ' ';
75
76  va_list ap;
77  va_start(ap, fmt);
78  android::base::StringAppendV(&g_fake_log_print, fmt, ap);
79  va_end(ap);
80
81  g_fake_log_print += '\n';
82
83  return 1;
84}
85
86extern "C" log_id_t android_name_to_log_id(const char*) {
87  return LOG_ID_SYSTEM;
88}
89
90extern "C" struct logger_list* android_logger_list_open(log_id_t, int, unsigned int, pid_t) {
91  errno = EACCES;
92  return nullptr;
93}
94
95extern "C" int android_logger_list_read(struct logger_list*, struct log_msg*) {
96  return 0;
97}
98
99extern "C" EventTagMap* android_openEventTagMap(const char*) {
100  return nullptr;
101}
102
103extern "C" int android_log_processBinaryLogBuffer(
104    struct logger_entry*,
105    AndroidLogEntry*, const EventTagMap*, char*, int) {
106  return 0;
107}
108
109extern "C" void android_logger_list_free(struct logger_list*) {
110}
111