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