mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
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139 lines
3.5 KiB
C++
139 lines
3.5 KiB
C++
/* -*- Mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; tab-width: 40 -*- */
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/* vim: set ts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "ObexBase.h"
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BEGIN_BLUETOOTH_NAMESPACE
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int
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AppendHeaderName(uint8_t* aRetBuf, int aBufferSize, const char* aName,
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int aLength)
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{
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int headerLength = aLength + 3;
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aRetBuf[0] = ObexHeaderId::Name;
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aRetBuf[1] = (headerLength & 0xFF00) >> 8;
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aRetBuf[2] = headerLength & 0x00FF;
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memcpy(&aRetBuf[3], aName, (aLength < aBufferSize - 3)? aLength
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: aBufferSize - 3);
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return headerLength;
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}
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int
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AppendHeaderBody(uint8_t* aRetBuf, int aBufferSize, const uint8_t* aData,
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int aLength)
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{
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int headerLength = aLength + 3;
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aRetBuf[0] = ObexHeaderId::Body;
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aRetBuf[1] = (headerLength & 0xFF00) >> 8;
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aRetBuf[2] = headerLength & 0x00FF;
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memcpy(&aRetBuf[3], aData, (aLength < aBufferSize - 3)? aLength
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: aBufferSize - 3);
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return headerLength;
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}
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int
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AppendHeaderEndOfBody(uint8_t* aRetBuf)
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{
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aRetBuf[0] = ObexHeaderId::EndOfBody;
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aRetBuf[1] = 0x00;
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aRetBuf[2] = 0x03;
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return 3;
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}
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int
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AppendHeaderLength(uint8_t* aRetBuf, int aObjectLength)
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{
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aRetBuf[0] = ObexHeaderId::Length;
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aRetBuf[1] = (aObjectLength & 0xFF000000) >> 24;
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aRetBuf[2] = (aObjectLength & 0x00FF0000) >> 16;
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aRetBuf[3] = (aObjectLength & 0x0000FF00) >> 8;
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aRetBuf[4] = aObjectLength & 0x000000FF;
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return 5;
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}
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int
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AppendHeaderConnectionId(uint8_t* aRetBuf, int aConnectionId)
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{
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aRetBuf[0] = ObexHeaderId::ConnectionId;
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aRetBuf[1] = (aConnectionId & 0xFF000000) >> 24;
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aRetBuf[2] = (aConnectionId & 0x00FF0000) >> 16;
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aRetBuf[3] = (aConnectionId & 0x0000FF00) >> 8;
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aRetBuf[4] = aConnectionId & 0x000000FF;
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return 5;
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}
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void
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SetObexPacketInfo(uint8_t* aRetBuf, uint8_t aOpcode, int aPacketLength)
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{
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aRetBuf[0] = aOpcode;
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aRetBuf[1] = (aPacketLength & 0xFF00) >> 8;
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aRetBuf[2] = aPacketLength & 0x00FF;
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}
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bool
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ParseHeaders(const uint8_t* aHeaderStart,
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int aTotalLength,
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ObexHeaderSet* aRetHandlerSet)
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{
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const uint8_t* ptr = aHeaderStart;
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while (ptr - aHeaderStart < aTotalLength) {
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ObexHeaderId headerId = (ObexHeaderId)*ptr++;
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uint16_t contentLength = 0;
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uint8_t highByte, lowByte;
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// Defined in 2.1 OBEX Headers, IrOBEX 1.2
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switch (headerId >> 6)
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{
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case 0x00:
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// Null-terminated Unicode text, length prefixed with 2-byte
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// unsigned integer.
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case 0x01:
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// byte sequence, length prefixed with 2 byte unsigned integer.
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highByte = *ptr++;
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lowByte = *ptr++;
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contentLength = (((uint16_t)highByte << 8) | lowByte) - 3;
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break;
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case 0x02:
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// 1 byte quantity
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contentLength = 1;
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break;
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case 0x03:
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// 4 byte quantity
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contentLength = 4;
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break;
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}
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// Length check to prevent from memory pollusion.
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if (ptr + contentLength > aHeaderStart + aTotalLength) {
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// Severe error occurred. We can't even believe the received data, so
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// clear all headers.
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MOZ_ASSERT(false);
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aRetHandlerSet->ClearHeaders();
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return false;
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}
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aRetHandlerSet->AddHeader(new ObexHeader(headerId, contentLength, ptr));
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ptr += contentLength;
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}
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return true;
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}
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END_BLUETOOTH_NAMESPACE
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