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/* Copyright (C) 2005 TightVNC Team. All Rights Reserved.
*
* Developed by Dennis Syrovatsky.
*
* This is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this software; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
* USA.
*
* TightVNC distribution homepage on the Web: http://www.tightvnc.com/
*
*/
// -=- SFTMsgReader.cxx
#include <rfb/SFTMsgReader.h>
using namespace rfb;
SFTMsgReader::SFTMsgReader(rdr::InStream *pIS)
{
m_pIS = pIS;
}
SFTMsgReader::~SFTMsgReader()
{
}
bool
SFTMsgReader::readFileListRqst(unsigned int *pDirNameSize, char *pDirName,
unsigned int *pFlags)
{
*pFlags = m_pIS->readU8();
unsigned int dirNameSize = m_pIS->readU16();
if (dirNameSize >= FT_FILENAME_SIZE) {
m_pIS->skip(dirNameSize);
return false;
} else {
m_pIS->readBytes(pDirName, dirNameSize);
*pDirNameSize = dirNameSize;
pDirName[dirNameSize] = '\0';
return true;
}
}
bool
SFTMsgReader::readFileDownloadRqst(unsigned int *pFilenameSize, char *pFilename,
unsigned int *pPosition)
{
unsigned char compressedLevel = 0;
return readU8U16U32StringMsg(&compressedLevel, pFilenameSize, pPosition, pFilename);
}
bool
SFTMsgReader::readFileUploadRqst(unsigned int *pFilenameSize, char *pFilename,
unsigned int *pPosition)
{
unsigned char compressedLevel = 0;
return readU8U16U32StringMsg(&compressedLevel, pFilenameSize, pPosition, pFilename);
}
void *
SFTMsgReader::readFileUploadData(unsigned int *pDataSize, unsigned int *pModTime)
{
unsigned char compressedLevel = m_pIS->readU8();
unsigned int realSize = m_pIS->readU16();
unsigned int compressedSize = m_pIS->readU16();
if ((realSize == 0) && (compressedSize == 0)) {
*pDataSize = 0;
*pModTime = m_pIS->readU32();
return NULL;
} else {
char *pData = new char [compressedSize];
m_pIS->readBytes(pData, compressedSize);
*pDataSize = compressedSize;
*pModTime = 0;
return pData;
}
}
bool
SFTMsgReader::readFileCreateDirRqst(unsigned int *pDirNameSize, char *pDirName)
{
return readU8U16StringMsg(pDirNameSize, pDirName);
}
bool
SFTMsgReader::readFileDirSizeRqst(unsigned int *pDirNameSize, char *pDirName)
{
return readU8U16StringMsg(pDirNameSize, pDirName);
}
bool
SFTMsgReader::readFileDeleteRqst(unsigned int *pNameSize, char *pName)
{
return readU8U16StringMsg(pNameSize, pName);
}
bool
SFTMsgReader::readFileRenameRqst(unsigned int *pOldNameSize,
unsigned int *pNewNameSize,
char *pOldName, char *pNewName)
{
m_pIS->skip(1);
unsigned int oldNameSize = m_pIS->readU16();
unsigned int newNameSize = m_pIS->readU16();
if ((oldNameSize >= *pOldNameSize) || (newNameSize >= *pNewNameSize)) {
m_pIS->skip(oldNameSize);
m_pIS->skip(newNameSize);
return false;
}
if (oldNameSize != 0) {
m_pIS->readBytes(pOldName, oldNameSize);
pOldName[oldNameSize] = '\0';
*pOldNameSize = oldNameSize;
} else {
*pOldNameSize = 0;
pOldName[0] = '\0';
}
if (newNameSize != 0) {
m_pIS->readBytes(pNewName, newNameSize);
pNewName[newNameSize] = '\0';
} else {
*pNewNameSize = 0;
pNewName[0] = '\0';
}
return true;
}
bool
SFTMsgReader::readFileDownloadCancel(unsigned int *pReasonSize, char *pReason)
{
return readU8U16StringMsg(pReasonSize, pReason);
}
bool
SFTMsgReader::readFileUploadFailed(unsigned int *pReasonSize, char *pReason)
{
return readU8U16StringMsg(pReasonSize, pReason);
}
bool
SFTMsgReader::readU8U16StringMsg(unsigned int *pReasonSize, char *pReason)
{
m_pIS->skip(1);
unsigned int reasonSize = m_pIS->readU16();
if (reasonSize >= FT_FILENAME_SIZE) {
m_pIS->skip(reasonSize);
return false;
} else {
if (reasonSize == 0) {
pReason[0] = '\0';
} else {
m_pIS->readBytes(pReason, reasonSize);
pReason[reasonSize] = '\0';
}
*pReasonSize = reasonSize;
return true;
}
}
bool
SFTMsgReader::readU8U16U32StringMsg(unsigned char *pU8, unsigned int *pU16,
unsigned int *pU32, char *pString)
{
*pU8 = m_pIS->readU8();
unsigned int strSize = m_pIS->readU16();
*pU32 = m_pIS->readU32();
if (strSize >= FT_FILENAME_SIZE) {
m_pIS->skip(strSize);
return false;
} else {
*pU16 = strSize;
if (strSize == 0) {
pString[0] = '\0';
} else {
m_pIS->readBytes(pString, strSize);
pString[strSize] = '\0';
}
return true;
}
}
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