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 <stdint.h>
19 
20 #include <log/log.h>
21 #include <log/log_event_list.h>
22 
23 #include "log_portability.h"
24 
25 #define MAX_SUBTAG_LEN 32
26 
__android_log_error_write(int tag,const char * subTag,int32_t uid,const char * data,uint32_t dataLen)27 LIBLOG_ABI_PUBLIC int __android_log_error_write(int tag, const char* subTag,
28                                                 int32_t uid, const char* data,
29                                                 uint32_t dataLen) {
30   int ret = -EINVAL;
31 
32   if (subTag && (data || !dataLen)) {
33     android_log_context ctx = create_android_logger(tag);
34 
35     ret = -ENOMEM;
36     if (ctx) {
37       ret = android_log_write_string8_len(ctx, subTag, MAX_SUBTAG_LEN);
38       if (ret >= 0) {
39         ret = android_log_write_int32(ctx, uid);
40         if (ret >= 0) {
41           ret = android_log_write_string8_len(ctx, data, dataLen);
42           if (ret >= 0) {
43             ret = android_log_write_list(ctx, LOG_ID_EVENTS);
44           }
45         }
46       }
47       android_log_destroy(&ctx);
48     }
49   }
50   return ret;
51 }
52