blob: a703ef91e2e829ea7e222f67ede7f32a33802bd8 [file] [log] [blame]
/*
* Copyright (C) 2016 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "protobuf.h"
uint8_t*
write_raw_varint(uint8_t* buf, uint32_t val)
{
uint8_t* p = buf;
while (true) {
if ((val & ~0x7F) == 0) {
*p++ = (uint8_t)val;
return p;
} else {
*p++ = (uint8_t)((val & 0x7F) | 0x80);
val >>= 7;
}
}
}
uint8_t*
write_length_delimited_tag_header(uint8_t* buf, uint32_t fieldId, size_t size)
{
buf = write_raw_varint(buf, (fieldId << 3) | 2);
buf = write_raw_varint(buf, size);
return buf;
}