1 /*
2 * Copyright (C) 2017 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 "proto_util.h"
18
19 #include <google/protobuf/io/zero_copy_stream_impl.h>
20
21 #include <android/util/protobuf.h>
22 #include <android/util/ProtoOutputStream.h>
23 #include <android-base/file.h>
24
25 namespace android {
26 namespace os {
27 namespace incidentd {
28
29 using namespace android::base;
30 using namespace android::util;
31 using google::protobuf::io::FileOutputStream;
32
33 // special section ids
34 const int FIELD_ID_INCIDENT_HEADER = 1;
35
write_header_section(int fd,const uint8_t * buf,size_t bufSize)36 status_t write_header_section(int fd, const uint8_t* buf, size_t bufSize) {
37 status_t err;
38
39 if (bufSize == 0) {
40 return NO_ERROR;
41 }
42
43 err = write_section_header(fd, FIELD_ID_INCIDENT_HEADER, bufSize);
44 if (err != NO_ERROR) {
45 return err;
46 }
47
48 err = WriteFully(fd, buf, bufSize);
49 if (err != NO_ERROR) {
50 return err;
51 }
52
53 return NO_ERROR;
54 }
55
write_section_header(int fd,int sectionId,size_t size)56 status_t write_section_header(int fd, int sectionId, size_t size) {
57 uint8_t buf[20];
58 uint8_t* p = write_length_delimited_tag_header(buf, sectionId, size);
59 return WriteFully(fd, buf, p - buf) ? NO_ERROR : -errno;
60 }
61
write_section(int fd,int sectionId,const MessageLite & message)62 status_t write_section(int fd, int sectionId, const MessageLite& message) {
63 status_t err;
64
65 err = write_section_header(fd, sectionId, message.ByteSize());
66 if (err != NO_ERROR) {
67 return err;
68 }
69
70 FileOutputStream stream(fd);
71 if (!message.SerializeToZeroCopyStream(&stream)) {
72 return stream.GetErrno();
73 } else {
74 return NO_ERROR;
75 }
76 }
77
78
79
80 } // namespace incidentd
81 } // namespace os
82 } // namespace android
83
84