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Fr4nz D13trich 2025-11-22 14:04:28 +01:00
parent 81b91f4139
commit f8c34fa5ee
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29
TMessagesProj/jni/voip/webrtc/net/dcsctp/packet/crc32c.cc Normal file
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/*
* Copyright (c) 2021 The WebRTC project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#include "net/dcsctp/packet/crc32c.h"
#include <cstdint>
#include "third_party/crc32c/src/include/crc32c/crc32c.h"
namespace dcsctp {
uint32_t GenerateCrc32C(rtc::ArrayView<const uint8_t> data) {
uint32_t crc32c = crc32c_value(data.data(), data.size());
// Byte swapping for little endian byte order:
uint8_t byte0 = crc32c;
uint8_t byte1 = crc32c >> 8;
uint8_t byte2 = crc32c >> 16;
uint8_t byte3 = crc32c >> 24;
crc32c = ((byte0 << 24) | (byte1 << 16) | (byte2 << 8) | byte3);
return crc32c;
}
} // namespace dcsctp