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      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 
     19 #include <log/log.h>
     20 
     21 #include "log_portability.h"
     22 
     23 #define MAX_SUBTAG_LEN 32
     24 
     25 LIBLOG_ABI_PUBLIC int __android_log_error_write(
     26         int tag,
     27         const char *subTag,
     28         int32_t uid,
     29         const char *data, uint32_t dataLen)
     30 {
     31     int ret = -EINVAL;
     32 
     33     if (subTag && (data || !dataLen)) {
     34         android_log_context ctx = create_android_logger(tag);
     35 
     36         ret = -ENOMEM;
     37         if (ctx) {
     38             ret = android_log_write_string8_len(ctx, subTag, MAX_SUBTAG_LEN);
     39             if (ret >= 0) {
     40                 ret = android_log_write_int32(ctx, uid);
     41                 if (ret >= 0) {
     42                     ret = android_log_write_string8_len(ctx, data, dataLen);
     43                     if (ret >= 0) {
     44                         ret = android_log_write_list(ctx, LOG_ID_EVENTS);
     45                     }
     46                 }
     47             }
     48             android_log_destroy(&ctx);
     49         }
     50     }
     51     return ret;
     52 }
     53