Rename kioslaves

1 files changed, 2282 insertions, 0 deletions

diff --git a/tdeioslave/sftp/tdeio_sftp.cpp b/tdeioslave/sftp/tdeio_sftp.cpp
new file mode 100644
index 000000000..f31ad03c6
--- /dev/null
+++ b/tdeioslave/sftp/tdeio_sftp.cpp
@@ -0,0 +1,2282 @@
+/***************************************************************************
+                          sftp.cpp  -  description
+                             -------------------
+    begin                : Fri Jun 29 23:45:40 CDT 2001
+    copyright            : (C) 2001 by Lucas Fisher
+    email                : ljfisher@purdue.edu
+ ***************************************************************************/
+
+/***************************************************************************
+ *                                                                         *
+ *   This program 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.                                   *
+ *                                                                         *
+ ***************************************************************************/
+
+/*
+DEBUGGING
+We are pretty much left with kdDebug messages for debugging. We can't use a gdb
+as described in the ioslave DEBUG.howto because tdeinit has to run in a terminal.
+Ssh will detect this terminal and ask for a password there, but will just get garbage.
+So we can't connect.
+*/
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <fcntl.h>
+
+#include <tqcstring.h>
+#include <tqstring.h>
+#include <tqobject.h>
+#include <tqstrlist.h>
+#include <tqfile.h>
+#include <tqbuffer.h>
+
+#include <stdlib.h>
+#include <unistd.h>
+#include <signal.h>
+#include <errno.h>
+#include <ctype.h>
+#include <time.h>
+#include <netdb.h>
+#include <string.h>
+
+#include <netinet/in.h>
+#include <arpa/inet.h>
+#include <sys/time.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+
+#include <kapplication.h>
+#include <kuser.h>
+#include <kdebug.h>
+#include <kmessagebox.h>
+#include <kinstance.h>
+#include <kglobal.h>
+#include <kstandarddirs.h>
+#include <klocale.h>
+#include <kurl.h>
+#include <tdeio/ioslave_defaults.h>
+#include <kmimetype.h>
+#include <kmimemagic.h>
+#include <klargefile.h>
+#include <kremoteencoding.h>
+
+#include "sftp.h"
+#include "tdeio_sftp.h"
+#include "atomicio.h"
+#include "sftpfileattr.h"
+#include "ksshprocess.h"
+
+
+using namespace TDEIO;
+extern "C"
+{
+  int KDE_EXPORT kdemain( int argc, char **argv )
+  {
+    TDEInstance instance( "tdeio_sftp" );
+
+    kdDebug(KIO_SFTP_DB) << "*** Starting tdeio_sftp " << endl;
+
+    if (argc != 4) {
+      kdDebug(KIO_SFTP_DB) << "Usage: tdeio_sftp  protocol domain-socket1 domain-socket2" << endl;
+      exit(-1);
+    }
+
+    sftpProtocol slave(argv[2], argv[3]);
+    slave.dispatchLoop();
+
+    kdDebug(KIO_SFTP_DB) << "*** tdeio_sftp Done" << endl;
+    return 0;
+  }
+}
+
+
+/*
+ * This helper handles some special issues (blocking and interrupted
+ * system call) when writing to a file handle.
+ *
+ * @return 0 on success or an error code on failure (ERR_COULD_NOT_WRITE,
+ * ERR_DISK_FULL, ERR_CONNECTION_BROKEN).
+ */
+static int writeToFile (int fd, const char *buf, size_t len)
+{
+  while (len > 0)
+  {
+    ssize_t written = ::write(fd, buf, len);
+    if (written >= 0)
+    {
+        buf += written;
+        len -= written;
+        continue;
+    }
+
+    switch(errno)
+    {
+      case EINTR:
+        continue;
+      case EPIPE:
+        return ERR_CONNECTION_BROKEN;
+      case ENOSPC:
+        return ERR_DISK_FULL;
+      default:
+        return ERR_COULD_NOT_WRITE;
+    }
+  }
+  return 0;
+}
+
+sftpProtocol::sftpProtocol(const TQCString &pool_socket, const TQCString &app_socket)
+             : SlaveBase("tdeio_sftp", pool_socket, app_socket),
+                  mConnected(false), mPort(-1), mMsgId(0) {
+  kdDebug(KIO_SFTP_DB) << "sftpProtocol(): pid = " << getpid() << endl;
+}
+
+
+sftpProtocol::~sftpProtocol() {
+    kdDebug(KIO_SFTP_DB) << "~sftpProtocol(): pid = " << getpid() << endl;
+    closeConnection();
+}
+
+/**
+  * Type is a sftp packet type found in .sftp.h'.
+  * Example: SSH2_FXP_READLINK, SSH2_FXP_RENAME, etc.
+  *
+  * Returns true if the type is supported by the sftp protocol
+  * version negotiated by the client and server (sftpVersion).
+  */
+bool sftpProtocol::isSupportedOperation(int type) {
+  switch (type) {
+    case SSH2_FXP_VERSION:
+    case SSH2_FXP_STATUS:
+    case SSH2_FXP_HANDLE:
+    case SSH2_FXP_DATA:
+    case SSH2_FXP_NAME:
+    case SSH2_FXP_ATTRS:
+    case SSH2_FXP_INIT:
+    case SSH2_FXP_OPEN:
+    case SSH2_FXP_CLOSE:
+    case SSH2_FXP_READ:
+    case SSH2_FXP_WRITE:
+    case SSH2_FXP_LSTAT:
+    case SSH2_FXP_FSTAT:
+    case SSH2_FXP_SETSTAT:
+    case SSH2_FXP_FSETSTAT:
+    case SSH2_FXP_OPENDIR:
+    case SSH2_FXP_READDIR:
+    case SSH2_FXP_REMOVE:
+    case SSH2_FXP_MKDIR:
+    case SSH2_FXP_RMDIR:
+    case SSH2_FXP_REALPATH:
+    case SSH2_FXP_STAT:
+      return true;
+    case SSH2_FXP_RENAME:
+      return sftpVersion >= 2 ? true : false;
+    case SSH2_FXP_EXTENDED:
+    case SSH2_FXP_EXTENDED_REPLY:
+    case SSH2_FXP_READLINK:
+    case SSH2_FXP_SYMLINK:
+      return sftpVersion >= 3 ? true : false;
+    default:
+      kdDebug(KIO_SFTP_DB) << "isSupportedOperation(type:"
+                            << type << "): unrecognized operation type" << endl;
+      break;
+  }
+
+  return false;
+}
+
+void sftpProtocol::copy(const KURL &src, const KURL &dest, int permissions, bool overwrite)
+{
+    kdDebug(KIO_SFTP_DB) << "copy(): " << src << " -> " << dest << endl;
+
+    bool srcLocal = src.isLocalFile();
+    bool destLocal = dest.isLocalFile();
+
+    if ( srcLocal && !destLocal ) // Copy file -> sftp
+      sftpCopyPut(src, dest, permissions, overwrite);
+    else if ( destLocal && !srcLocal ) // Copy sftp -> file
+      sftpCopyGet(dest, src, permissions, overwrite);
+    else
+      error(ERR_UNSUPPORTED_ACTION, TQString::null);
+}
+
+void sftpProtocol::sftpCopyGet(const KURL& dest, const KURL& src, int mode, bool overwrite)
+{
+    kdDebug(KIO_SFTP_DB) << "sftpCopyGet(): " << src << " -> " << dest << endl;
+
+    // Attempt to establish a connection...
+    openConnection();
+    if( !mConnected )
+        return;
+
+    KDE_struct_stat buff_orig;
+    TQCString dest_orig ( TQFile::encodeName(dest.path()) );
+    bool origExists = (KDE_lstat( dest_orig.data(), &buff_orig ) != -1);
+
+    if (origExists)
+    {
+        if (S_ISDIR(buff_orig.st_mode))
+        {
+          error(ERR_IS_DIRECTORY, dest.prettyURL());
+          return;
+        }
+
+        if (!overwrite)
+        {
+          error(ERR_FILE_ALREADY_EXIST, dest.prettyURL());
+          return;
+        }
+    }
+
+    TDEIO::filesize_t offset = 0;
+    TQCString dest_part ( dest_orig + ".part" );
+
+    int fd = -1;
+    bool partExists = false;
+    bool markPartial = config()->readBoolEntry("MarkPartial", true);
+
+    if (markPartial)
+    {
+        KDE_struct_stat buff_part;
+        partExists = (KDE_stat( dest_part.data(), &buff_part ) != -1);
+
+        if (partExists && buff_part.st_size > 0 && S_ISREG(buff_part.st_mode))
+        {
+            if (canResume( buff_part.st_size ))
+            {
+                offset = buff_part.st_size;
+                kdDebug(KIO_SFTP_DB) << "sftpCopyGet: Resuming @ " << offset << endl;
+            }
+        }
+
+        if (offset > 0)
+        {
+            fd = KDE_open(dest_part.data(), O_RDWR);
+            offset = KDE_lseek(fd, 0, SEEK_END);
+            if (offset == 0)
+            {
+              error(ERR_CANNOT_RESUME, dest.prettyURL());
+              return;
+            }
+        }
+        else
+        {
+            // Set up permissions properly, based on what is done in file io-slave
+            int openFlags = (O_CREAT | O_TRUNC | O_WRONLY);
+            int initialMode = (mode == -1) ? 0666 : (mode | S_IWUSR);
+            fd = KDE_open(dest_part.data(), openFlags, initialMode);
+        }
+    }
+    else
+    {
+        // Set up permissions properly, based on what is done in file io-slave
+        int openFlags = (O_CREAT | O_TRUNC | O_WRONLY);
+        int initialMode = (mode == -1) ? 0666 : (mode | S_IWUSR);
+        fd = KDE_open(dest_orig.data(), openFlags, initialMode);
+    }
+
+    if(fd == -1)
+    {
+      kdDebug(KIO_SFTP_DB) << "sftpCopyGet: Unable to open (" << fd << ") for writting." << endl;
+      if (errno == EACCES)
+        error (ERR_WRITE_ACCESS_DENIED, dest.prettyURL());
+      else
+        error (ERR_CANNOT_OPEN_FOR_WRITING, dest.prettyURL());
+      return;
+    }
+
+    Status info = sftpGet(src, offset, fd);
+    if ( info.code != 0 )
+    {
+      // Should we keep the partially downloaded file ??
+      TDEIO::filesize_t size = config()->readNumEntry("MinimumKeepSize", DEFAULT_MINIMUM_KEEP_SIZE);
+      if (info.size < size)
+        ::remove(dest_part.data());
+
+      error(info.code, info.text);
+      return;
+    }
+
+    if (::close(fd) != 0)
+    {
+      error(ERR_COULD_NOT_WRITE, dest.prettyURL());
+      return;
+    }
+
+    //
+    if (markPartial)
+    {
+      if (::rename(dest_part.data(), dest_orig.data()) != 0)
+      {
+        error (ERR_CANNOT_RENAME_PARTIAL, dest_part);
+        return;
+      }
+    }
+
+    data(TQByteArray());
+    kdDebug(KIO_SFTP_DB) << "sftpCopyGet(): emit finished()" << endl;
+    finished();
+}
+
+sftpProtocol::Status sftpProtocol::sftpGet( const KURL& src, TDEIO::filesize_t offset, int fd )
+{
+    int code;
+    sftpFileAttr attr(remoteEncoding());
+
+    Status res;
+    res.code = 0;
+    res.size = 0;
+
+    kdDebug(KIO_SFTP_DB) << "sftpGet(): " << src << endl;
+
+    // stat the file first to get its size
+    if( (code = sftpStat(src, attr)) != SSH2_FX_OK ) {
+        return doProcessStatus(code, src.prettyURL());
+    }
+
+    // We cannot get file if it is a directory
+    if( attr.fileType() == S_IFDIR ) {
+        res.text = src.prettyURL();
+        res.code = ERR_IS_DIRECTORY;
+        return res;
+    }
+
+    TDEIO::filesize_t fileSize = attr.fileSize();
+    TQ_UINT32 pflags = SSH2_FXF_READ;
+    attr.clear();
+
+    TQByteArray handle;
+    if( (code = sftpOpen(src, pflags, attr, handle)) != SSH2_FX_OK ) {
+        res.text = src.prettyURL();
+        res.code = ERR_CANNOT_OPEN_FOR_READING;
+        return res;
+    }
+
+    // needed for determining mimetype
+    // note: have to emit mimetype before emitting totalsize.
+    TQByteArray buff;
+    TQByteArray mimeBuffer;
+
+    unsigned int oldSize;
+    bool foundMimetype = false;
+
+    // How big should each data packet be? Definitely not bigger than 64kb or
+    // you will overflow the 2 byte size variable in a sftp packet.
+    TQ_UINT32 len = 60*1024;
+    code = SSH2_FX_OK;
+
+    kdDebug(KIO_SFTP_DB) << "sftpGet(): offset = " << offset << endl;
+    while( code == SSH2_FX_OK ) {
+        if( (code = sftpRead(handle, offset, len, buff)) == SSH2_FX_OK ) {
+            offset += buff.size();
+
+            // save data for mimetype. Pretty much follows what is in the ftp ioslave
+            if( !foundMimetype ) {
+                oldSize = mimeBuffer.size();
+                mimeBuffer.resize(oldSize + buff.size());
+                memcpy(mimeBuffer.data()+oldSize, buff.data(), buff.size());
+
+                if( mimeBuffer.size() > 1024 ||  offset == fileSize ) {
+                    // determine mimetype
+                    KMimeMagicResult* result =
+                        KMimeMagic::self()->findBufferFileType(mimeBuffer, src.fileName());
+                    kdDebug(KIO_SFTP_DB) << "sftpGet(): mimetype is " <<
+                                      result->mimeType() << endl;
+                    mimeType(result->mimeType());
+
+                    // Always send the total size after emitting mime-type...
+                    totalSize(fileSize);
+
+                    if (fd == -1)
+                        data(mimeBuffer);
+                    else
+                    {
+                        if ( (res.code=writeToFile(fd, mimeBuffer.data(), mimeBuffer.size())) != 0 )
+                            return res;
+                    }
+
+                    processedSize(mimeBuffer.size());
+                    mimeBuffer.resize(0);
+                    foundMimetype = true;
+                }
+            }
+            else {
+                if (fd == -1)
+                    data(buff);
+                else
+                {
+                    if ( (res.code= writeToFile(fd, buff.data(), buff.size())) != 0 )
+                        return res;
+                }
+                processedSize(offset);
+            }
+        }
+
+        /*
+          Check if slave was killed.  According to slavebase.h we need to leave
+          the slave methods as soon as possible if the slave is killed. This
+          allows the slave to be cleaned up properly.
+        */
+        if( wasKilled() ) {
+            res.text = i18n("An internal error occurred. Please retry the request again.");
+            res.code = ERR_UNKNOWN;
+            return res;
+        }
+    }
+
+    if( code != SSH2_FX_EOF ) {
+        res.text = src.prettyURL();
+        res.code = ERR_COULD_NOT_READ; // return here or still send empty array to indicate end of read?
+    }
+
+    res.size = offset;
+    sftpClose(handle);
+    processedSize (offset);
+    return res;
+}
+
+void sftpProtocol::get(const KURL& url) {
+    kdDebug(KIO_SFTP_DB) << "get(): " << url << endl ;
+
+    openConnection();
+    if( !mConnected )
+        return;
+
+    // Get resume offset
+    TQ_UINT64 offset = config()->readUnsignedLongNumEntry("resume");
+    if( offset > 0 ) {
+        canResume();
+        kdDebug(KIO_SFTP_DB) << "get(): canResume(), offset = " << offset << endl;
+    }
+
+    Status info = sftpGet(url, offset);
+
+    if (info.code != 0)
+    {
+      error(info.code, info.text);
+      return;
+    }
+
+    data(TQByteArray());
+    kdDebug(KIO_SFTP_DB) << "get(): emit finished()" << endl;
+    finished();
+}
+
+
+void sftpProtocol::setHost (const TQString& h, int port, const TQString& user, const TQString& pass)
+{
+    kdDebug(KIO_SFTP_DB) << "setHost(): " << user << "@" << h << ":" << port << endl;
+
+    if( mHost != h || mPort != port || user != mUsername || mPassword != pass )
+        closeConnection();
+
+    mHost = h;
+
+    if( port > 0 )
+        mPort = port;
+    else {
+        mPort = -1;
+    }
+
+    mUsername = user;
+    mPassword = pass;
+
+    if (user.isEmpty())
+    {
+      KUser u;
+      mUsername = u.loginName();
+    }
+}
+
+
+void sftpProtocol::openConnection() {
+
+    if(mConnected)
+      return;
+
+    kdDebug(KIO_SFTP_DB) << "openConnection(): " << mUsername << "@"
+                         << mHost << ":" << mPort << endl;
+
+    infoMessage( i18n("Opening SFTP connection to host <b>%1:%2</b>").arg(mHost).arg(mPort));
+
+    if( mHost.isEmpty() ) {
+        kdDebug(KIO_SFTP_DB) << "openConnection(): Need hostname..." << endl;
+        error(ERR_UNKNOWN_HOST, i18n("No hostname specified"));
+        return;
+    }
+
+    ////////////////////////////////////////////////////////////////////////////
+    // Setup AuthInfo for use with password caching and the
+    // password dialog box.
+    AuthInfo info;
+    info.url.setProtocol("sftp");
+    info.url.setHost(mHost);
+    info.url.setPort(mPort);
+    info.url.setUser(mUsername);
+    info.caption = i18n("SFTP Login");
+    info.comment = "sftp://" + mHost + ":" + TQString::number(mPort);
+    info.commentLabel = i18n("site:");
+    info.username = mUsername;
+    info.keepPassword = true;
+
+    ///////////////////////////////////////////////////////////////////////////
+    // Check for cached authentication info if a username AND password were
+    // not specified in setHost().
+    if( mUsername.isEmpty() && mPassword.isEmpty() ) {
+        kdDebug(KIO_SFTP_DB) << "openConnection(): checking cache "
+                             << "info.username = " << info.username
+                             << ", info.url = " << info.url.prettyURL() << endl;
+
+        if( checkCachedAuthentication(info) ) {
+            mUsername = info.username;
+            mPassword = info.password;
+        }
+    }
+
+    ///////////////////////////////////////////////////////////////////////////
+    // Now setup our ssh options. If we found a cached username
+    // and password we set the SSH_PASSWORD and SSH_USERNAME
+    // options right away.  Otherwise we wait. The other options are
+    // necessary for running sftp over ssh.
+    KSshProcess::SshOpt opt;   // a ssh option, this can be reused
+    KSshProcess::SshOptList opts; // list of SshOpts
+    KSshProcess::SshOptListIterator passwdIt; // points to the opt in opts that specifies the password
+    KSshProcess::SshOptListIterator usernameIt;
+
+//    opt.opt = KSshProcess::SSH_VERBOSE;
+//    opts.append(opt);
+//    opts.append(opt);
+
+    if( mPort != -1 ) {
+        opt.opt = KSshProcess::SSH_PORT;
+        opt.num = mPort;
+        opts.append(opt);
+    }
+
+    opt.opt = KSshProcess::SSH_SUBSYSTEM;
+    opt.str = "sftp";
+    opts.append(opt);
+
+    opt.opt = KSshProcess::SSH_FORWARDX11;
+    opt.boolean = false;
+    opts.append(opt);
+
+    opt.opt = KSshProcess::SSH_FORWARDAGENT;
+    opt.boolean = false;
+    opts.append(opt);
+
+    opt.opt = KSshProcess::SSH_PROTOCOL;
+    opt.num = 2;
+    opts.append(opt);
+
+    opt.opt = KSshProcess::SSH_HOST;
+    opt.str = mHost;
+    opts.append(opt);
+
+    opt.opt = KSshProcess::SSH_ESCAPE_CHAR;
+    opt.num = -1; // don't use any escape character
+    opts.append(opt);
+
+    // set the username and password if we have them
+    if( !mUsername.isEmpty()  ) {
+        opt.opt = KSshProcess::SSH_USERNAME;
+        opt.str = mUsername;
+        usernameIt = opts.append(opt);
+    }
+
+    if( !mPassword.isEmpty() ) {
+        opt.opt = KSshProcess::SSH_PASSWD;
+        opt.str = mPassword;
+        passwdIt = opts.append(opt);
+    }
+
+    ssh.setOptions(opts);
+    ssh.printArgs();
+
+    ///////////////////////////////////////////////////////////////////////////
+    // Start the ssh connection process.
+    //
+
+    int err;           // error code from KSshProcess
+    TQString msg;       // msg for dialog box
+    TQString caption;   // dialog box caption
+    bool firstTime = true;
+    bool dlgResult;
+
+    while( !(mConnected = ssh.connect()) ) {
+        err = ssh.error();
+        kdDebug(KIO_SFTP_DB) << "openConnection(): "
+            "Got " << err << " from KSshProcess::connect()" << endl;
+
+        switch(err) {
+        case KSshProcess::ERR_NEED_PASSWD:
+        case KSshProcess::ERR_NEED_PASSPHRASE:
+            // At this point we know that either we didn't set
+            // an username or password in the ssh options list,
+            // or what we did pass did not work. Therefore we
+            // must prompt the user.
+            if( err == KSshProcess::ERR_NEED_PASSPHRASE )
+                info.prompt = i18n("Please enter your username and key passphrase.");
+            else
+                info.prompt = i18n("Please enter your username and password.");
+
+            kdDebug(KIO_SFTP_DB) << "openConnection(): info.username = " << info.username
+                                 << ", info.url = " << info.url.prettyURL() << endl;
+
+            if( firstTime )
+                dlgResult = openPassDlg(info);
+            else
+                dlgResult = openPassDlg(info, i18n("Incorrect username or password"));
+
+            if( dlgResult ) {
+               if( info.username.isEmpty() || info.password.isEmpty() ) {
+                    error(ERR_COULD_NOT_AUTHENTICATE,
+                      i18n("Please enter a username and password"));
+                    continue;
+                }
+            }
+            else {
+                // user canceled or dialog failed to open
+                error(ERR_USER_CANCELED, TQString::null);
+                kdDebug(KIO_SFTP_DB) << "openConnection(): user canceled, dlgResult = " << dlgResult << endl;
+                closeConnection();
+                return;
+            }
+
+            firstTime = false;
+
+            // Check if the username has changed. SSH only accepts
+            // the username at startup. If the username has changed
+            // we must disconnect ssh, change the SSH_USERNAME
+            // option, and reset the option list. We will also set
+            // the password option so the user is not prompted for
+            // it again.
+            if( mUsername != info.username ) {
+                kdDebug(KIO_SFTP_DB) << "openConnection(): Username changed from "
+                                     << mUsername << " to " << info.username << endl;
+
+                ssh.disconnect();
+
+                // if we haven't yet added the username
+                // or password option to the ssh options list then
+                // the iterators will be equal to the empty iterator.
+                // Create the opts now and add them to the opt list.
+                if( usernameIt == KSshProcess::SshOptListIterator() ) {
+                    kdDebug(KIO_SFTP_DB) << "openConnection(): "
+                        "Adding username to options list" << endl;
+                    opt.opt = KSshProcess::SSH_USERNAME;
+                    usernameIt = opts.append(opt);
+                }
+
+                if( passwdIt == KSshProcess::SshOptListIterator() ) {
+                    kdDebug(KIO_SFTP_DB) << "openConnection(): "
+                        "Adding password to options list" << endl;
+                    opt.opt = KSshProcess::SSH_PASSWD;
+                    passwdIt = opts.append(opt);
+                }
+
+                (*usernameIt).str = info.username;
+                (*passwdIt).str = info.password;
+                ssh.setOptions(opts);
+                ssh.printArgs();
+            }
+            else { // just set the password
+                ssh.setPassword(info.password);
+            }
+
+            mUsername = info.username;
+            mPassword = info.password;
+
+            break;
+
+        case KSshProcess::ERR_NEW_HOST_KEY:
+            caption = i18n("Warning: Cannot verify host's identity.");
+            msg = ssh.errorMsg();
+            if( KMessageBox::Yes != messageBox(WarningYesNo, msg, caption) ) {
+                closeConnection();
+                error(ERR_USER_CANCELED, TQString::null);
+                return;
+            }
+            ssh.acceptHostKey(true);
+            break;
+
+        case KSshProcess::ERR_DIFF_HOST_KEY:
+            caption = i18n("Warning: Host's identity changed.");
+            msg = ssh.errorMsg();
+            if( KMessageBox::Yes != messageBox(WarningYesNo, msg, caption) ) {
+                closeConnection();
+                error(ERR_USER_CANCELED, TQString::null);
+                return;
+            }
+            ssh.acceptHostKey(true);
+            break;
+
+        case KSshProcess::ERR_AUTH_FAILED:
+            infoMessage(i18n("Authentication failed."));
+            error(ERR_COULD_NOT_LOGIN, i18n("Authentication failed."));
+            return;
+
+        case KSshProcess::ERR_AUTH_FAILED_NEW_KEY:
+            msg = ssh.errorMsg();
+            error(ERR_COULD_NOT_LOGIN, msg);
+            return;
+
+        case KSshProcess::ERR_AUTH_FAILED_DIFF_KEY:
+            msg = ssh.errorMsg();
+            error(ERR_COULD_NOT_LOGIN, msg);
+            return;
+
+        case KSshProcess::ERR_CLOSED_BY_REMOTE_HOST:
+            infoMessage(i18n("Connection failed."));
+            caption = i18n("Connection closed by remote host.");
+            msg = ssh.errorMsg();
+            messageBox(Information, msg, caption);
+            closeConnection();
+            error(ERR_COULD_NOT_LOGIN, msg);
+            return;
+
+        case KSshProcess::ERR_INTERACT:
+        case KSshProcess::ERR_INTERNAL:
+        case KSshProcess::ERR_UNKNOWN:
+        case KSshProcess::ERR_INVALID_STATE:
+        case KSshProcess::ERR_CANNOT_LAUNCH:
+        case KSshProcess::ERR_HOST_KEY_REJECTED:
+        default:
+            infoMessage(i18n("Connection failed."));
+            caption = i18n("Unexpected SFTP error: %1").arg(err);
+            msg = ssh.errorMsg();
+            messageBox(Information, msg, caption);
+            closeConnection();
+            error(ERR_UNKNOWN, msg);
+            return;
+        }
+    }
+
+    // catch all in case we did something wrong above
+    if( !mConnected ) {
+        error(ERR_INTERNAL, TQString::null);
+        return;
+    }
+
+    // Now send init packet.
+    kdDebug(KIO_SFTP_DB) << "openConnection(): Sending SSH2_FXP_INIT packet." << endl;
+    TQByteArray p;
+    TQDataStream packet(p, IO_WriteOnly);
+    packet << (TQ_UINT32)5;                     // packet length
+    packet << (TQ_UINT8) SSH2_FXP_INIT;         // packet type
+    packet << (TQ_UINT32)SSH2_FILEXFER_VERSION; // client version
+
+    putPacket(p);
+    getPacket(p);
+
+    TQDataStream s(p, IO_ReadOnly);
+    TQ_UINT32 version;
+    TQ_UINT8  type;
+    s >> type;
+    kdDebug(KIO_SFTP_DB) << "openConnection(): Got type " << type << endl;
+
+    if( type == SSH2_FXP_VERSION ) {
+        s >> version;
+        kdDebug(KIO_SFTP_DB) << "openConnection(): Got server version " << version << endl;
+
+        // XXX Get extensions here
+        sftpVersion = version;
+
+        /* Server should return lowest common version supported by
+         * client and server, but double check just in case.
+         */
+        if( sftpVersion > SSH2_FILEXFER_VERSION ) {
+            error(ERR_UNSUPPORTED_PROTOCOL,
+                i18n("SFTP version %1").arg(version));
+            closeConnection();
+            return;
+        }
+    }
+    else {
+        error(ERR_UNKNOWN, i18n("Protocol error."));
+        closeConnection();
+        return;
+    }
+
+    // Login succeeded!
+    infoMessage(i18n("Successfully connected to %1").arg(mHost));
+    info.url.setProtocol("sftp");
+    info.url.setHost(mHost);
+    info.url.setPort(mPort);
+    info.url.setUser(mUsername);
+    info.username = mUsername;
+    info.password = mPassword;
+    kdDebug(KIO_SFTP_DB) << "sftpProtocol(): caching info.username = " << info.username <<
+        ", info.url = " << info.url.prettyURL() << endl;
+    cacheAuthentication(info);
+    mConnected = true;
+    connected();
+
+    mPassword.fill('x');
+    info.password.fill('x');
+
+    return;
+}
+
+void sftpProtocol::closeConnection() {
+    kdDebug(KIO_SFTP_DB) << "closeConnection()" << endl;
+    ssh.disconnect();
+    mConnected = false;
+}
+
+void sftpProtocol::sftpCopyPut(const KURL& src, const KURL& dest, int permissions, bool overwrite) {
+
+    KDE_struct_stat buff;
+    TQCString file (TQFile::encodeName(src.path()));
+
+    if (KDE_lstat(file.data(), &buff) == -1) {
+        error (ERR_DOES_NOT_EXIST, src.prettyURL());
+        return;
+    }
+
+    if (S_ISDIR (buff.st_mode)) {
+        error (ERR_IS_DIRECTORY, src.prettyURL());
+        return;
+    }
+
+    int fd = KDE_open (file.data(), O_RDONLY);
+    if (fd == -1) {
+        error (ERR_CANNOT_OPEN_FOR_READING, src.prettyURL());
+        return;
+    }
+
+    totalSize (buff.st_size);
+
+    sftpPut (dest, permissions, false, overwrite, fd);
+
+    // Close the file descriptor...
+    ::close( fd );
+}
+
+void sftpProtocol::sftpPut( const KURL& dest, int permissions, bool resume, bool overwrite, int fd ) {
+
+    openConnection();
+    if( !mConnected )
+        return;
+
+    kdDebug(KIO_SFTP_DB) << "sftpPut(): " << dest
+                         << ", resume=" << resume
+                         << ", overwrite=" << overwrite << endl;
+
+    KURL origUrl( dest );
+    sftpFileAttr origAttr(remoteEncoding());
+    bool origExists = false;
+
+    // Stat original (without part ext)  to see if it already exists
+    int code = sftpStat(origUrl, origAttr);
+
+    if( code == SSH2_FX_OK ) {
+        kdDebug(KIO_SFTP_DB) << "sftpPut(): <file> already exists" << endl;
+
+        // Delete remote file if its size is zero
+        if( origAttr.fileSize() == 0 ) {
+            if( sftpRemove(origUrl, true) != SSH2_FX_OK ) {
+                error(ERR_CANNOT_DELETE_ORIGINAL, origUrl.prettyURL());
+                return;
+            }
+        }
+        else {
+            origExists = true;
+        }
+    }
+    else if( code != SSH2_FX_NO_SUCH_FILE ) {
+        processStatus(code, origUrl.prettyURL());
+        return;
+    }
+
+    // Do not waste time/resources with more remote stat calls if the file exists
+    // and we weren't instructed to overwrite it...
+    if( origExists && !overwrite ) {
+        error(ERR_FILE_ALREADY_EXIST, origUrl.prettyURL());
+        return;
+    }
+
+    // Stat file with part ext to see if it already exists...
+    KURL partUrl( origUrl );
+    partUrl.setFileName( partUrl.fileName() + ".part" );
+
+    TQ_UINT64 offset = 0;
+    bool partExists = false;
+    bool markPartial = config()->readBoolEntry("MarkPartial", true);
+
+    if( markPartial ) {
+
+        sftpFileAttr partAttr(remoteEncoding());
+        code = sftpStat(partUrl, partAttr);
+
+        if( code == SSH2_FX_OK ) {
+            kdDebug(KIO_SFTP_DB) << "sftpPut(): .part file already exists" << endl;
+            partExists = true;
+            offset = partAttr.fileSize();
+
+            // If for some reason, both the original and partial files exist,
+            // skip resumption just like we would if the size of the partial
+            // file is zero...
+            if( origExists || offset == 0 )
+            {
+                if( sftpRemove(partUrl, true) != SSH2_FX_OK ) {
+                    error(ERR_CANNOT_DELETE_PARTIAL, partUrl.prettyURL());
+                    return;
+                }
+
+                if( sftpRename(origUrl, partUrl) != SSH2_FX_OK ) {
+                    error(ERR_CANNOT_RENAME_ORIGINAL, origUrl.prettyURL());
+                    return;
+                }
+
+                offset = 0;
+            }
+            else if( !overwrite && !resume ) {
+                    if (fd != -1)
+                        resume = (KDE_lseek(fd, offset, SEEK_SET) != -1);
+                    else
+                        resume = canResume( offset );
+
+                    kdDebug(KIO_SFTP_DB) << "sftpPut(): can resume = " << resume
+                                         << ", offset = " << offset;
+
+                    if( !resume ) {
+                      error(ERR_FILE_ALREADY_EXIST, partUrl.prettyURL());
+                      return;
+                    }
+            }
+            else {
+                offset = 0;
+            }
+        }
+        else if( code == SSH2_FX_NO_SUCH_FILE ) {
+            if( origExists && sftpRename(origUrl, partUrl) != SSH2_FX_OK ) {
+              error(ERR_CANNOT_RENAME_ORIGINAL, origUrl.prettyURL());
+              return;
+            }
+        }
+        else {
+            processStatus(code, partUrl.prettyURL());
+            return;
+        }
+    }
+
+    // Determine the url we will actually write to...
+    KURL writeUrl (markPartial ? partUrl:origUrl);
+
+    TQ_UINT32 pflags = 0;
+    if( overwrite && !resume )
+        pflags = SSH2_FXF_WRITE | SSH2_FXF_CREAT | SSH2_FXF_TRUNC;
+    else if( !overwrite && !resume )
+        pflags = SSH2_FXF_WRITE | SSH2_FXF_CREAT | SSH2_FXF_EXCL;
+    else if( overwrite && resume )
+        pflags = SSH2_FXF_WRITE | SSH2_FXF_CREAT;
+    else if( !overwrite && resume )
+        pflags = SSH2_FXF_WRITE | SSH2_FXF_CREAT | SSH2_FXF_APPEND;
+
+    sftpFileAttr attr(remoteEncoding());
+    TQByteArray handle;
+
+    // Set the permissions of the file we write to if it didn't already exist
+    // and the permission info is supplied, i.e it is not -1
+    if( !partExists && !origExists && permissions != -1)
+        attr.setPermissions(permissions);
+
+    code = sftpOpen( writeUrl, pflags, attr, handle );
+    if( code != SSH2_FX_OK ) {
+
+        // Rename the file back to its original name if a
+        // put fails due to permissions problems...
+        if( markPartial && overwrite ) {
+            (void) sftpRename(partUrl, origUrl);
+            writeUrl = origUrl;
+        }
+
+        if( code == SSH2_FX_FAILURE ) { // assume failure means file exists
+            error(ERR_FILE_ALREADY_EXIST, writeUrl.prettyURL());
+            return;
+        }
+        else {
+            processStatus(code, writeUrl.prettyURL());
+            return;
+        }
+    }
+
+    long nbytes;
+    TQByteArray buff;
+
+    do {
+
+        if( fd != -1 ) {
+            buff.resize( 16*1024 );
+            if ( (nbytes = ::read(fd, buff.data(), buff.size())) > -1 )
+                buff.resize( nbytes );
+        }
+        else {
+            dataReq();
+            nbytes = readData( buff );
+        }
+
+        if( nbytes >= 0 ) {
+            if( (code = sftpWrite(handle, offset, buff)) != SSH2_FX_OK ) {
+                error(ERR_COULD_NOT_WRITE, dest.prettyURL());
+                return;
+            }
+
+            offset += nbytes;
+            processedSize(offset);
+
+            /* Check if slave was killed.  According to slavebase.h we
+              * need to leave the slave methods as soon as possible if
+              * the slave is killed. This allows the slave to be cleaned
+              * up properly.
+              */
+            if( wasKilled() ) {
+                sftpClose(handle);
+                closeConnection();
+                error(ERR_UNKNOWN, i18n("An internal error occurred. Please try again."));
+                return;
+            }
+        }
+
+    } while( nbytes > 0 );
+
+    if( nbytes < 0 ) {
+        sftpClose(handle);
+
+        if( markPartial ) {
+            // Remove remote file if it smaller than our keep size
+            uint minKeepSize = config()->readNumEntry("MinimumKeepSize", DEFAULT_MINIMUM_KEEP_SIZE);
+
+            if( sftpStat(writeUrl, attr) == SSH2_FX_OK ) {
+                if( attr.fileSize() < minKeepSize ) {
+                    sftpRemove(writeUrl, true);
+                }
+            }
+        }
+
+        error( ERR_UNKNOWN, i18n("Unknown error was encountered while copying the file "
+                                 "to '%1'. Please try again.").arg(dest.host()) );
+        return;
+    }
+
+    if( (code = sftpClose(handle)) != SSH2_FX_OK ) {
+        error(ERR_COULD_NOT_WRITE, writeUrl.prettyURL());
+        return;
+    }
+
+    // If wrote to a partial file, then remove the part ext
+    if( markPartial ) {
+        if( sftpRename(partUrl, origUrl) != SSH2_FX_OK ) {
+            error(ERR_CANNOT_RENAME_PARTIAL, origUrl.prettyURL());
+            return;
+        }
+    }
+
+    finished();
+}
+
+void sftpProtocol::put ( const KURL& url, int permissions, bool overwrite, bool resume ){
+    kdDebug(KIO_SFTP_DB) << "put(): " << url << ", overwrite = " << overwrite
+                         << ", resume = " << resume << endl;
+
+    sftpPut( url, permissions, resume, overwrite );
+}
+
+void sftpProtocol::stat ( const KURL& url ){
+    kdDebug(KIO_SFTP_DB) << "stat(): " << url << endl;
+
+    openConnection();
+    if( !mConnected )
+        return;
+
+    // If the stat URL has no path, do not attempt to determine the real
+    // path and do a redirect. KRun will simply ignore such requests.
+    // Instead, simply return the mime-type as a directory...
+    if( !url.hasPath() ) {
+        UDSEntry entry;
+        UDSAtom atom;
+
+        atom.m_uds = TDEIO::UDS_NAME;
+        atom.m_str = TQString::null;
+        entry.append( atom );
+
+        atom.m_uds = TDEIO::UDS_FILE_TYPE;
+        atom.m_long = S_IFDIR;
+        entry.append( atom );
+
+        atom.m_uds = TDEIO::UDS_ACCESS;
+        atom.m_long = S_IRUSR | S_IXUSR | S_IRGRP | S_IXGRP | S_IROTH | S_IXOTH;
+        entry.append( atom );
+
+        atom.m_uds = TDEIO::UDS_USER;
+        atom.m_str = mUsername;
+        entry.append( atom );
+        atom.m_uds = TDEIO::UDS_GROUP;
+        entry.append( atom );
+
+        // no size
+        statEntry( entry );
+        finished();
+        return;
+    }
+
+    int code;
+    sftpFileAttr attr(remoteEncoding());
+    if( (code = sftpStat(url, attr)) != SSH2_FX_OK ) {
+        processStatus(code, url.prettyURL());
+        return;
+    }
+    else {
+        //kdDebug() << "We sent and received stat packet ok" << endl;
+        attr.setFilename(url.fileName());
+        statEntry(attr.entry());
+    }
+
+    finished();
+
+    kdDebug(KIO_SFTP_DB) << "stat: END" << endl;
+    return;
+}
+
+
+void sftpProtocol::mimetype ( const KURL& url ){
+    kdDebug(KIO_SFTP_DB) << "mimetype(): " << url << endl;
+
+    openConnection();
+    if( !mConnected )
+        return;
+
+    TQ_UINT32 pflags = SSH2_FXF_READ;
+    TQByteArray handle, mydata;
+    sftpFileAttr attr(remoteEncoding());
+    int code;
+    if( (code = sftpOpen(url, pflags, attr, handle)) != SSH2_FX_OK ) {
+        error(ERR_CANNOT_OPEN_FOR_READING, url.prettyURL());
+        return;
+    }
+
+    TQ_UINT32 len = 1024; // Get first 1k for determining mimetype
+    TQ_UINT64 offset = 0;
+    code = SSH2_FX_OK;
+    while( offset < len && code == SSH2_FX_OK ) {
+        if( (code = sftpRead(handle, offset, len, mydata)) == SSH2_FX_OK ) {
+            data(mydata);
+            offset += mydata.size();
+            processedSize(offset);
+
+            kdDebug(KIO_SFTP_DB) << "mimetype(): offset = " << offset << endl;
+        }
+    }
+
+
+    data(TQByteArray());
+    processedSize(offset);
+    sftpClose(handle);
+    finished();
+    kdDebug(KIO_SFTP_DB) << "mimetype(): END" << endl;
+}
+
+
+void sftpProtocol::listDir(const KURL& url) {
+    kdDebug(KIO_SFTP_DB) << "listDir(): " << url << endl;
+
+    openConnection();
+    if( !mConnected )
+        return;
+
+    if( !url.hasPath() ) {
+        KURL newUrl ( url );
+        if( sftpRealPath(url, newUrl) == SSH2_FX_OK ) {
+            kdDebug(KIO_SFTP_DB) << "listDir: Redirecting to " << newUrl << endl;
+            redirection(newUrl);
+            finished();
+            return;
+        }
+    }
+
+    int code;
+    TQByteArray handle;
+
+    if( (code = sftpOpenDirectory(url, handle)) != SSH2_FX_OK ) {
+        kdError(KIO_SFTP_DB) << "listDir(): open directory failed" << endl;
+        processStatus(code, url.prettyURL());
+        return;
+    }
+
+
+    code = SSH2_FX_OK;
+    while( code == SSH2_FX_OK ) {
+        code = sftpReadDir(handle, url);
+        if( code != SSH2_FX_OK && code != SSH2_FX_EOF )
+            processStatus(code, url.prettyURL());
+        kdDebug(KIO_SFTP_DB) << "listDir(): return code = " << code << endl;
+    }
+
+    if( (code = sftpClose(handle)) != SSH2_FX_OK ) {
+        kdError(KIO_SFTP_DB) << "listdir(): closing of directory failed" << endl;
+        processStatus(code, url.prettyURL());
+        return;
+    }
+
+    finished();
+    kdDebug(KIO_SFTP_DB) << "listDir(): END" << endl;
+}
+
+/** Make a directory.
+    OpenSSH does not follow the internet draft for sftp in this case.
+    The format of the mkdir request expected by OpenSSH sftp server is:
+        uint32 id
+        string path
+        ATTR   attr
+ */
+void sftpProtocol::mkdir(const KURL&url, int permissions){
+
+    kdDebug(KIO_SFTP_DB) << "mkdir() creating dir: " << url.path() << endl;
+
+    openConnection();
+    if( !mConnected )
+        return;
+
+    TQCString path = remoteEncoding()->encode(url.path());
+    uint len = path.length();
+
+    sftpFileAttr attr(remoteEncoding());
+
+    if (permissions != -1)
+      attr.setPermissions(permissions);
+
+    TQ_UINT32 id, expectedId;
+    id = expectedId = mMsgId++;
+
+    TQByteArray p;
+    TQDataStream s(p, IO_WriteOnly);
+    s << TQ_UINT32(1 /*type*/ + 4 /*id*/ + 4 /*str length*/ + len + attr.size());
+    s << (TQ_UINT8)SSH2_FXP_MKDIR;
+    s << id;
+    s.writeBytes(path.data(), len);
+    s << attr;
+
+    kdDebug(KIO_SFTP_DB) << "mkdir(): packet size is " << p.size() << endl;
+
+    putPacket(p);
+    getPacket(p);
+
+    TQ_UINT8 type;
+    TQDataStream r(p, IO_ReadOnly);
+
+    r >> type >> id;
+    if( id != expectedId ) {
+        kdError(KIO_SFTP_DB) << "mkdir: sftp packet id mismatch" << endl;
+        error(ERR_COULD_NOT_MKDIR, path);
+        finished();
+        return;
+    }
+
+    if( type != SSH2_FXP_STATUS ) {
+        kdError(KIO_SFTP_DB) << "mkdir(): unexpected packet type of " << type << endl;
+        error(ERR_COULD_NOT_MKDIR, path);
+        finished();
+        return;
+    }
+
+    int code;
+    r >> code;
+    if( code != SSH2_FX_OK ) {
+        kdError(KIO_SFTP_DB) << "mkdir(): failed with code " << code << endl;
+
+        // Check if mkdir failed because the directory already exists so that
+        // we can return the appropriate message...
+        sftpFileAttr dirAttr(remoteEncoding());
+        if ( sftpStat(url, dirAttr) == SSH2_FX_OK )
+        {
+          error( ERR_DIR_ALREADY_EXIST, url.prettyURL() );
+          return;
+        }
+
+        error(ERR_COULD_NOT_MKDIR, path);
+    }
+
+    finished();
+}
+
+void sftpProtocol::rename(const KURL& src, const KURL& dest, bool overwrite){
+    kdDebug(KIO_SFTP_DB) << "rename(" << src << " -> " << dest << ")" << endl;
+
+    if (!isSupportedOperation(SSH2_FXP_RENAME)) {
+      error(ERR_UNSUPPORTED_ACTION,
+          i18n("The remote host does not support renaming files."));
+      return;
+    }
+
+    openConnection();
+    if( !mConnected )
+        return;
+
+    // Always stat the destination before attempting to rename
+    // a file or a directory...
+    sftpFileAttr attr(remoteEncoding());
+    int code = sftpStat(dest, attr);
+
+    // If the destination directory, exists tell it to the job
+    // so it the proper action can be presented to the user...
+    if( code == SSH2_FX_OK )
+    {
+      if (!overwrite)
+      {
+        if ( S_ISDIR(attr.permissions()) )
+          error( TDEIO::ERR_DIR_ALREADY_EXIST, dest.url() );
+        else
+          error( TDEIO::ERR_FILE_ALREADY_EXIST, dest.url() );
+        return;
+        }
+
+      // If overwrite is specified, then simply remove the existing file/dir first...
+      if( (code = sftpRemove( dest, !S_ISDIR(attr.permissions()) )) != SSH2_FX_OK )
+      {
+        processStatus(code);
+            return;
+        }
+    }
+
+    // Do the renaming...
+    if( (code = sftpRename(src, dest)) != SSH2_FX_OK ) {
+        processStatus(code);
+        return;
+    }
+
+    finished();
+    kdDebug(KIO_SFTP_DB) << "rename(): END" << endl;
+}
+
+void sftpProtocol::symlink(const TQString& target, const KURL& dest, bool overwrite){
+    kdDebug(KIO_SFTP_DB) << "symlink()" << endl;
+
+    if (!isSupportedOperation(SSH2_FXP_SYMLINK)) {
+      error(ERR_UNSUPPORTED_ACTION,
+          i18n("The remote host does not support creating symbolic links."));
+      return;
+    }
+
+    openConnection();
+    if( !mConnected )
+        return;
+
+    int code;
+    bool failed = false;
+    if( (code = sftpSymLink(target, dest)) != SSH2_FX_OK ) {
+        if( overwrite ) { // try to delete the destination
+            sftpFileAttr attr(remoteEncoding());
+            if( (code = sftpStat(dest, attr)) != SSH2_FX_OK ) {
+                failed = true;
+            }
+            else {
+                if( (code = sftpRemove(dest, !S_ISDIR(attr.permissions())) ) != SSH2_FX_OK ) {
+                    failed = true;
+                }
+                else {
+                    // XXX what if rename fails again? We have lost the file.
+                    // Maybe rename dest to a temporary name first? If rename is
+                    // successful, then delete?
+                    if( (code = sftpSymLink(target, dest)) != SSH2_FX_OK )
+                        failed = true;
+                }
+            }
+        }
+        else if( code == SSH2_FX_FAILURE ) {
+            error(ERR_FILE_ALREADY_EXIST, dest.prettyURL());
+            return;
+        }
+        else
+            failed = true;
+    }
+
+    // What error code do we return? Code for the original symlink command
+    // or for the last command or for both? The second one is implemented here.
+    if( failed )
+        processStatus(code);
+
+    finished();
+}
+
+void sftpProtocol::chmod(const KURL& url, int permissions){
+    TQString perms;
+    perms.setNum(permissions, 8);
+    kdDebug(KIO_SFTP_DB) << "chmod(" << url << ", " << perms << ")" << endl;
+
+    openConnection();
+    if( !mConnected )
+        return;
+
+    sftpFileAttr attr(remoteEncoding());
+
+    if (permissions != -1)
+      attr.setPermissions(permissions);
+
+    int code;
+    if( (code = sftpSetStat(url, attr)) != SSH2_FX_OK ) {
+        kdError(KIO_SFTP_DB) << "chmod(): sftpSetStat failed with error " << code << endl;
+        if( code == SSH2_FX_FAILURE )
+            error(ERR_CANNOT_CHMOD, TQString::null);
+        else
+            processStatus(code, url.prettyURL());
+    }
+    finished();
+}
+
+
+void sftpProtocol::del(const KURL &url, bool isfile){
+    kdDebug(KIO_SFTP_DB) << "del(" << url << ", " << (isfile?"file":"dir") << ")" << endl;
+
+    openConnection();
+    if( !mConnected )
+        return;
+
+    int code;
+    if( (code = sftpRemove(url, isfile)) != SSH2_FX_OK ) {
+        kdError(KIO_SFTP_DB) << "del(): sftpRemove failed with error code " << code << endl;
+        processStatus(code, url.prettyURL());
+    }
+    finished();
+}
+
+void sftpProtocol::slave_status() {
+    kdDebug(KIO_SFTP_DB) << "slave_status(): connected to "
+                         <<  mHost << "? " << mConnected << endl;
+
+    slaveStatus ((mConnected ? mHost : TQString::null), mConnected);
+}
+
+bool sftpProtocol::getPacket(TQByteArray& msg) {
+    TQByteArray buf(4096);
+
+    // Get the message length...
+    ssize_t len = atomicio(ssh.stdioFd(), buf.data(), 4, true /*read*/);
+
+    if( len == 0 || len == -1 ) {
+        kdDebug(KIO_SFTP_DB) << "getPacket(): read of packet length failed, ret = "
+                             << len << ", error =" << strerror(errno) << endl;
+        closeConnection();
+        error( ERR_CONNECTION_BROKEN, mHost);
+        msg.resize(0);
+        return false;
+    }
+
+    uint msgLen;
+    TQDataStream s(buf, IO_ReadOnly);
+    s >> msgLen;
+
+    //kdDebug(KIO_SFTP_DB) << "getPacket(): Message size = " << msgLen << endl;
+
+    msg.resize(0);
+
+    TQBuffer b( msg );
+    b.open( IO_WriteOnly );
+
+    while( msgLen ) {
+        len = atomicio(ssh.stdioFd(), buf.data(), kMin((uint)buf.size(), msgLen), true /*read*/);
+
+        if( len == 0 || len == -1) {
+            TQString errmsg;
+            if (len == 0)
+              errmsg = i18n("Connection closed");
+            else
+              errmsg = i18n("Could not read SFTP packet");
+            kdDebug(KIO_SFTP_DB) << "getPacket(): nothing to read, ret = " <<
+                len << ", error =" << strerror(errno) << endl;
+            closeConnection();
+            error(ERR_CONNECTION_BROKEN, errmsg);
+            b.close();
+            return false;
+        }
+
+        b.writeBlock(buf.data(), len);
+
+        //kdDebug(KIO_SFTP_DB) << "getPacket(): Read Message size = " << len << endl;
+        //kdDebug(KIO_SFTP_DB) << "getPacket(): Copy Message size = " << msg.size() << endl;
+
+        msgLen -= len;
+    }
+
+    b.close();
+
+    return true;
+}
+
+/** Send an sftp packet to stdin of the ssh process. */
+bool sftpProtocol::putPacket(TQByteArray& p){
+//    kdDebug(KIO_SFTP_DB) << "putPacket(): size == " << p.size() << endl;
+    int ret;
+    ret = atomicio(ssh.stdioFd(), p.data(), p.size(), false /*write*/);
+    if( ret <= 0 ) {
+        kdDebug(KIO_SFTP_DB) << "putPacket(): write failed, ret =" << ret <<
+            ", error = " << strerror(errno) << endl;
+        return false;
+    }
+
+    return true;
+}
+
+/** Used to have the server canonicalize any given path name to an absolute path.
+This is useful for converting path names containing ".." components or relative
+pathnames without a leading slash into absolute paths.
+Returns the canonicalized url. */
+int sftpProtocol::sftpRealPath(const KURL& url, KURL& newUrl){
+
+    kdDebug(KIO_SFTP_DB) << "sftpRealPath(" << url << ", newUrl)" << endl;
+
+    TQCString path = remoteEncoding()->encode(url.path());
+    uint len = path.length();
+
+    TQ_UINT32 id, expectedId;
+    id = expectedId = mMsgId++;
+
+    TQByteArray p;
+    TQDataStream s(p, IO_WriteOnly);
+    s << TQ_UINT32(1 /*type*/ + 4 /*id*/ + 4 /*str length*/ + len);
+    s << (TQ_UINT8)SSH2_FXP_REALPATH;
+    s << id;
+    s.writeBytes(path.data(), len);
+
+    putPacket(p);
+    getPacket(p);
+
+    TQ_UINT8 type;
+    TQDataStream r(p, IO_ReadOnly);
+
+    r >> type >> id;
+    if( id != expectedId ) {
+        kdError(KIO_SFTP_DB) << "sftpRealPath: sftp packet id mismatch" << endl;
+        return -1;
+    }
+
+    if( type == SSH2_FXP_STATUS ) {
+        TQ_UINT32 code;
+        r >> code;
+        return code;
+    }
+
+    if( type != SSH2_FXP_NAME ) {
+        kdError(KIO_SFTP_DB) << "sftpRealPath(): unexpected packet type of " << type << endl;
+        return -1;
+    }
+
+    TQ_UINT32 count;
+    r >> count;
+    if( count != 1 ) {
+        kdError(KIO_SFTP_DB) << "sftpRealPath(): Bad number of file attributes for realpath command" << endl;
+        return -1;
+    }
+
+    TQCString newPath;
+    r >> newPath;
+
+    newPath.truncate(newPath.size());
+    if (newPath.isEmpty())
+      newPath = "/";
+    newUrl.setPath(newPath);
+
+    return SSH2_FX_OK;
+}
+
+sftpProtocol::Status sftpProtocol::doProcessStatus(TQ_UINT8 code, const TQString& message)
+{
+    Status res;
+    res.code = 0;
+    res.size = 0;
+    res.text = message;
+
+    switch(code)
+    {
+      case SSH2_FX_OK:
+      case SSH2_FX_EOF:
+          break;
+      case SSH2_FX_NO_SUCH_FILE:
+          res.code = ERR_DOES_NOT_EXIST;
+          break;
+      case SSH2_FX_PERMISSION_DENIED:
+          res.code = ERR_ACCESS_DENIED;
+          break;
+      case SSH2_FX_FAILURE:
+          res.text = i18n("SFTP command failed for an unknown reason.");
+          res.code = ERR_UNKNOWN;
+          break;
+      case SSH2_FX_BAD_MESSAGE:
+          res.text = i18n("The SFTP server received a bad message.");
+          res.code = ERR_UNKNOWN;
+          break;
+      case SSH2_FX_OP_UNSUPPORTED:
+          res.text = i18n("You attempted an operation unsupported by the SFTP server.");
+          res.code = ERR_UNKNOWN;
+          break;
+      default:
+          res.text = i18n("Error code: %1").arg(code);
+          res.code = ERR_UNKNOWN;
+    }
+
+    return res;
+}
+
+/** Process SSH_FXP_STATUS packets. */
+void sftpProtocol::processStatus(TQ_UINT8 code, const TQString& message){
+    Status st = doProcessStatus( code, message );
+    if( st.code != 0 )
+        error( st.code, st.text );
+}
+
+/** Opens a directory handle for url.path. Returns true if succeeds. */
+int sftpProtocol::sftpOpenDirectory(const KURL& url, TQByteArray& handle){
+
+    kdDebug(KIO_SFTP_DB) << "sftpOpenDirectory(" << url << ", handle)" << endl;
+
+    TQCString path = remoteEncoding()->encode(url.path());
+    uint len = path.length();
+
+    TQ_UINT32 id, expectedId;
+    id = expectedId = mMsgId++;
+
+    TQByteArray p;
+    TQDataStream s(p, IO_WriteOnly);
+    s << (TQ_UINT32)(1 /*type*/ + 4 /*id*/ + 4 /*str length*/ + len);
+    s << (TQ_UINT8)SSH2_FXP_OPENDIR;
+    s << (TQ_UINT32)id;
+    s.writeBytes(path.data(), len);
+
+    putPacket(p);
+    getPacket(p);
+
+    TQDataStream r(p, IO_ReadOnly);
+    TQ_UINT8 type;
+
+    r >> type >> id;
+    if( id != expectedId ) {
+        kdError(KIO_SFTP_DB) << "sftpOpenDirectory: sftp packet id mismatch: " <<
+            "expected " << expectedId << ", got " << id << endl;
+        return -1;
+    }
+
+    if( type == SSH2_FXP_STATUS ) {
+        TQ_UINT32 errCode;
+        r >> errCode;
+        return errCode;
+    }
+
+    if( type != SSH2_FXP_HANDLE ) {
+        kdError(KIO_SFTP_DB) << "sftpOpenDirectory: unexpected message type of " << type << endl;
+        return -1;
+    }
+
+    r >> handle;
+    if( handle.size() > 256 ) {
+        kdError(KIO_SFTP_DB) << "sftpOpenDirectory: handle exceeds max length" << endl;
+        return -1;
+    }
+
+    kdDebug(KIO_SFTP_DB) << "sftpOpenDirectory: handle (" << handle.size() << "): [" << handle << "]" << endl;
+    return SSH2_FX_OK;
+}
+
+/** Closes a directory or file handle. */
+int sftpProtocol::sftpClose(const TQByteArray& handle){
+
+    kdDebug(KIO_SFTP_DB) << "sftpClose()" << endl;
+
+    TQ_UINT32 id, expectedId;
+    id = expectedId = mMsgId++;
+
+    TQByteArray p;
+    TQDataStream s(p, IO_WriteOnly);
+    s << (TQ_UINT32)(1 /*type*/ + 4 /*id*/ + 4 /*str length*/ + handle.size());
+    s << (TQ_UINT8)SSH2_FXP_CLOSE;
+    s << (TQ_UINT32)id;
+    s << handle;
+
+    putPacket(p);
+    getPacket(p);
+
+    TQDataStream r(p, IO_ReadOnly);
+    TQ_UINT8 type;
+
+    r >> type >> id;
+    if( id != expectedId ) {
+        kdError(KIO_SFTP_DB) << "sftpClose: sftp packet id mismatch" << endl;
+        return -1;
+    }
+
+    if( type != SSH2_FXP_STATUS ) {
+        kdError(KIO_SFTP_DB) << "sftpClose: unexpected message type of " << type << endl;
+        return -1;
+    }
+
+    TQ_UINT32 code;
+    r >> code;
+    if( code != SSH2_FX_OK ) {
+        kdError(KIO_SFTP_DB) << "sftpClose: close failed with err code " << code << endl;
+    }
+
+    return code;
+}
+
+/** Set a files attributes. */
+int sftpProtocol::sftpSetStat(const KURL& url, const sftpFileAttr& attr){
+
+    kdDebug(KIO_SFTP_DB) << "sftpSetStat(" << url << ", attr)" << endl;
+
+    TQCString path = remoteEncoding()->encode(url.path());
+    uint len = path.length();
+
+    TQ_UINT32 id, expectedId;
+    id = expectedId = mMsgId++;
+
+    TQByteArray p;
+    TQDataStream s(p, IO_WriteOnly);
+    s << (TQ_UINT32)(1 /*type*/ + 4 /*id*/ + 4 /*str length*/ + len + attr.size());
+    s << (TQ_UINT8)SSH2_FXP_SETSTAT;
+    s << (TQ_UINT32)id;
+    s.writeBytes(path.data(), len);
+    s << attr;
+
+    putPacket(p);
+    getPacket(p);
+
+    TQDataStream r(p, IO_ReadOnly);
+    TQ_UINT8 type;
+
+    r >> type >> id;
+    if( id != expectedId ) {
+        kdError(KIO_SFTP_DB) << "sftpSetStat(): sftp packet id mismatch" << endl;
+        return -1;
+        // XXX How do we do a fatal error?
+    }
+
+    if( type != SSH2_FXP_STATUS ) {
+        kdError(KIO_SFTP_DB) << "sftpSetStat(): unexpected message type of " << type << endl;
+        return -1;
+    }
+
+    TQ_UINT32 code;
+    r >> code;
+    if( code != SSH2_FX_OK ) {
+        kdError(KIO_SFTP_DB) << "sftpSetStat(): set stat failed with err code " << code << endl;
+    }
+
+    return code;
+}
+
+/** Sends a sftp command to remove a file or directory. */
+int sftpProtocol::sftpRemove(const KURL& url, bool isfile){
+
+    kdDebug(KIO_SFTP_DB) << "sftpRemove(): " << url << ", isFile ? " << isfile << endl;
+
+    TQCString path = remoteEncoding()->encode(url.path());
+    uint len = path.length();
+
+    TQ_UINT32 id, expectedId;
+    id = expectedId = mMsgId++;
+
+    TQByteArray p;
+    TQDataStream s(p, IO_WriteOnly);
+    s << (TQ_UINT32)(1 /*type*/ + 4 /*id*/ + 4 /*str length*/ + len);
+    s << (TQ_UINT8)(isfile ? SSH2_FXP_REMOVE : SSH2_FXP_RMDIR);
+    s << (TQ_UINT32)id;
+    s.writeBytes(path.data(), len);
+
+    putPacket(p);
+    getPacket(p);
+
+    TQDataStream r(p, IO_ReadOnly);
+    TQ_UINT8 type;
+
+    r >> type >> id;
+    if( id != expectedId ) {
+        kdError(KIO_SFTP_DB) << "del(): sftp packet id mismatch" << endl;
+        return -1;
+    }
+
+    if( type != SSH2_FXP_STATUS ) {
+        kdError(KIO_SFTP_DB) << "del(): unexpected message type of " << type << endl;
+        return -1;
+    }
+
+    TQ_UINT32 code;
+    r >> code;
+    if( code != SSH2_FX_OK ) {
+        kdError(KIO_SFTP_DB) << "del(): del failed with err code " << code << endl;
+    }
+
+    return code;
+}
+
+/** Send a sftp command to rename a file or directoy. */
+int sftpProtocol::sftpRename(const KURL& src, const KURL& dest){
+
+    kdDebug(KIO_SFTP_DB) << "sftpRename(" << src << " -> " << dest << ")" << endl;
+
+    TQCString srcPath = remoteEncoding()->encode(src.path());
+    TQCString destPath = remoteEncoding()->encode(dest.path());
+
+    uint slen = srcPath.length();
+    uint dlen = destPath.length();
+
+    TQ_UINT32 id, expectedId;
+    id = expectedId = mMsgId++;
+
+    TQByteArray p;
+    TQDataStream s(p, IO_WriteOnly);
+    s << (TQ_UINT32)(1 /*type*/ + 4 /*id*/ +
+                    4 /*str length*/ + slen +
+                    4 /*str length*/ + dlen);
+    s << (TQ_UINT8)SSH2_FXP_RENAME;
+    s << (TQ_UINT32)id;
+    s.writeBytes(srcPath.data(), slen);
+    s.writeBytes(destPath.data(), dlen);
+
+    putPacket(p);
+    getPacket(p);
+
+    TQDataStream r(p, IO_ReadOnly);
+    TQ_UINT8 type;
+
+    r >> type >> id;
+    if( id != expectedId ) {
+        kdError(KIO_SFTP_DB) << "sftpRename(): sftp packet id mismatch" << endl;
+        return -1;
+    }
+
+    if( type != SSH2_FXP_STATUS ) {
+        kdError(KIO_SFTP_DB) << "sftpRename(): unexpected message type of " << type << endl;
+        return -1;
+    }
+
+    int code;
+    r >> code;
+    if( code != SSH2_FX_OK ) {
+        kdError(KIO_SFTP_DB) << "sftpRename(): rename failed with err code " << code << endl;
+    }
+
+    return code;
+}
+/** Get directory listings. */
+int sftpProtocol::sftpReadDir(const TQByteArray& handle, const KURL& url){
+    // url is needed so we can lookup the link destination
+    kdDebug(KIO_SFTP_DB) << "sftpReadDir(): " << url << endl;
+
+    TQ_UINT32 id, expectedId, count;
+    TQ_UINT8 type;
+
+    sftpFileAttr attr (remoteEncoding());
+    attr.setDirAttrsFlag(true);
+
+    TQByteArray p;
+    TQDataStream s(p, IO_WriteOnly);
+    id = expectedId = mMsgId++;
+    s << (TQ_UINT32)(1 /*type*/ + 4 /*id*/ + 4 /*str length*/ + handle.size());
+    s << (TQ_UINT8)SSH2_FXP_READDIR;
+    s << (TQ_UINT32)id;
+    s << handle;
+
+    putPacket(p);
+    getPacket(p);
+
+    TQDataStream r(p, IO_ReadOnly);
+    r >> type >> id;
+
+    if( id != expectedId ) {
+        kdError(KIO_SFTP_DB) << "sftpReadDir(): sftp packet id mismatch" << endl;
+        return -1;
+    }
+
+    int code;
+    if( type == SSH2_FXP_STATUS ) {
+        r >> code;
+        return code;
+    }
+
+    if( type != SSH2_FXP_NAME ) {
+        kdError(KIO_SFTP_DB) << "tdeio_sftpProtocl::sftpReadDir(): Unexpected message" << endl;
+        return -1;
+    }
+
+    r >> count;
+    kdDebug(KIO_SFTP_DB) << "sftpReadDir(): got " << count << " entries" << endl;
+
+    while(count--) {
+        r >> attr;
+
+        if( S_ISLNK(attr.permissions()) ) {
+             KURL myurl ( url );
+             myurl.addPath(attr.filename());
+
+             // Stat the symlink to find out its type...
+             sftpFileAttr attr2 (remoteEncoding());
+             (void) sftpStat(myurl, attr2);
+
+             attr.setLinkType(attr2.linkType());
+             attr.setLinkDestination(attr2.linkDestination());
+        }
+
+        listEntry(attr.entry(), false);
+    }
+
+    listEntry(attr.entry(), true);
+
+    return SSH2_FX_OK;
+}
+
+int sftpProtocol::sftpReadLink(const KURL& url, TQString& target){
+
+    kdDebug(KIO_SFTP_DB) << "sftpReadLink(): " << url << endl;
+
+    TQCString path = remoteEncoding()->encode(url.path());
+    uint len = path.length();
+
+    //kdDebug(KIO_SFTP_DB) << "sftpReadLink(): Encoded Path: " << path << endl;
+    //kdDebug(KIO_SFTP_DB) << "sftpReadLink(): Encoded Size: " << len << endl;
+
+    TQ_UINT32 id, expectedId;
+    id = expectedId = mMsgId++;
+
+    TQByteArray p;
+    TQDataStream s(p, IO_WriteOnly);
+    s << (TQ_UINT32)(1 /*type*/ + 4 /*id*/ + 4 /*str length*/ + len);
+    s << (TQ_UINT8)SSH2_FXP_READLINK;
+    s << id;
+    s.writeBytes(path.data(), len);
+
+
+    putPacket(p);
+    getPacket(p);
+
+    TQ_UINT8 type;
+    TQDataStream r(p, IO_ReadOnly);
+
+    r >> type >> id;
+    if( id != expectedId ) {
+        kdError(KIO_SFTP_DB) << "sftpReadLink(): sftp packet id mismatch" << endl;
+        return -1;
+    }
+
+    if( type == SSH2_FXP_STATUS ) {
+        TQ_UINT32 code;
+        r >> code;
+        kdDebug(KIO_SFTP_DB) << "sftpReadLink(): read link failed with code " << code << endl;
+        return code;
+    }
+
+    if( type != SSH2_FXP_NAME ) {
+        kdError(KIO_SFTP_DB) << "sftpReadLink(): unexpected packet type of " << type << endl;
+        return -1;
+    }
+
+    TQ_UINT32 count;
+    r >> count;
+    if( count != 1 ) {
+        kdError(KIO_SFTP_DB) << "sftpReadLink(): Bad number of file attributes for realpath command" << endl;
+        return -1;
+    }
+
+    TQCString linkAddress;
+    r >> linkAddress;
+
+    linkAddress.truncate(linkAddress.size());
+    kdDebug(KIO_SFTP_DB) << "sftpReadLink(): Link address: " << linkAddress << endl;
+
+    target = remoteEncoding()->decode(linkAddress);
+
+    return SSH2_FX_OK;
+}
+
+int sftpProtocol::sftpSymLink(const TQString& _target, const KURL& dest){
+
+    TQCString destPath = remoteEncoding()->encode(dest.path());
+    TQCString target = remoteEncoding()->encode(_target);
+    uint dlen = destPath.length();
+    uint tlen = target.length();
+
+    kdDebug(KIO_SFTP_DB) << "sftpSymLink(" << target << " -> " << destPath << ")" << endl;
+
+    TQ_UINT32 id, expectedId;
+    id = expectedId = mMsgId++;
+
+    TQByteArray p;
+    TQDataStream s(p, IO_WriteOnly);
+    s << (TQ_UINT32)(1 /*type*/ + 4 /*id*/ +
+                    4 /*str length*/ + tlen +
+                    4 /*str length*/ + dlen);
+    s << (TQ_UINT8)SSH2_FXP_SYMLINK;
+    s << (TQ_UINT32)id;
+    s.writeBytes(target.data(), tlen);
+    s.writeBytes(destPath.data(), dlen);
+
+    putPacket(p);
+    getPacket(p);
+
+    TQDataStream r(p, IO_ReadOnly);
+    TQ_UINT8 type;
+
+    r >> type >> id;
+    if( id != expectedId ) {
+        kdError(KIO_SFTP_DB) << "sftpSymLink(): sftp packet id mismatch" << endl;
+        return -1;
+    }
+
+    if( type != SSH2_FXP_STATUS ) {
+        kdError(KIO_SFTP_DB) << "sftpSymLink(): unexpected message type of " << type << endl;
+        return -1;
+    }
+
+    TQ_UINT32 code;
+    r >> code;
+    if( code != SSH2_FX_OK ) {
+        kdError(KIO_SFTP_DB) << "sftpSymLink(): rename failed with err code " << code << endl;
+    }
+
+    return code;
+}
+
+/** Stats a file. */
+int sftpProtocol::sftpStat(const KURL& url, sftpFileAttr& attr) {
+
+    kdDebug(KIO_SFTP_DB) << "sftpStat(): " << url << endl;
+
+    TQCString path = remoteEncoding()->encode(url.path());
+    uint len = path.length();
+
+    TQ_UINT32 id, expectedId;
+    id = expectedId = mMsgId++;
+
+    TQByteArray p;
+    TQDataStream s(p, IO_WriteOnly);
+    s << (TQ_UINT32)(1 /*type*/ + 4 /*id*/ + 4 /*str length*/ + len);
+    s << (TQ_UINT8)SSH2_FXP_LSTAT;
+    s << (TQ_UINT32)id;
+    s.writeBytes(path.data(), len);
+
+    putPacket(p);
+    getPacket(p);
+
+    TQDataStream r(p, IO_ReadOnly);
+    TQ_UINT8 type;
+
+    r >> type >> id;
+    if( id != expectedId ) {
+        kdError(KIO_SFTP_DB) << "sftpStat(): sftp packet id mismatch" << endl;
+        return -1;
+    }
+
+    if( type == SSH2_FXP_STATUS ) {
+        TQ_UINT32 errCode;
+        r >> errCode;
+        kdError(KIO_SFTP_DB) << "sftpStat(): stat failed with code " << errCode << endl;
+        return errCode;
+    }
+
+    if( type != SSH2_FXP_ATTRS ) {
+        kdError(KIO_SFTP_DB) << "sftpStat(): unexpected message type of " << type << endl;
+        return -1;
+    }
+
+    r >> attr;
+    attr.setFilename(url.fileName());
+    kdDebug(KIO_SFTP_DB) << "sftpStat(): " << attr << endl;
+
+    // If the stat'ed resource is a symlink, perform a recursive stat
+    // to determine the actual destination's type (file/dir).
+    if( S_ISLNK(attr.permissions()) && isSupportedOperation(SSH2_FXP_READLINK) ) {
+
+        TQString target;
+        int code = sftpReadLink( url, target );
+
+        if ( code != SSH2_FX_OK ) {
+            kdError(KIO_SFTP_DB) << "sftpStat(): Unable to stat symlink destination" << endl;
+            return -1;
+        }
+
+        kdDebug(KIO_SFTP_DB) << "sftpStat(): Resource is a symlink to -> " << target << endl;
+
+        KURL dest( url );
+        if( target[0] == '/' )
+            dest.setPath(target);
+        else
+            dest.setFileName(target);
+
+        dest.cleanPath();
+
+        // Ignore symlinks that point to themselves...
+        if ( dest != url ) {
+
+            sftpFileAttr attr2 (remoteEncoding());
+            (void) sftpStat(dest, attr2);
+
+            if (attr2.linkType() == 0)
+                attr.setLinkType(attr2.fileType());
+            else
+                attr.setLinkType(attr2.linkType());
+
+            attr.setLinkDestination(target);
+
+            kdDebug(KIO_SFTP_DB) << "sftpStat(): File type: " << attr.fileType() << endl;
+        }
+    }
+
+    return SSH2_FX_OK;
+}
+
+
+int sftpProtocol::sftpOpen(const KURL& url, const TQ_UINT32 pflags,
+                           const sftpFileAttr& attr, TQByteArray& handle) {
+    kdDebug(KIO_SFTP_DB) << "sftpOpen(" << url << ", handle" << endl;
+
+    TQCString path = remoteEncoding()->encode(url.path());
+    uint len = path.length();
+
+    TQ_UINT32 id, expectedId;
+    id = expectedId = mMsgId++;
+
+    TQByteArray p;
+    TQDataStream s(p, IO_WriteOnly);
+    s << (TQ_UINT32)(1 /*type*/ + 4 /*id*/ +
+                    4 /*str length*/ + len +
+                    4 /*pflags*/ + attr.size());
+    s << (TQ_UINT8)SSH2_FXP_OPEN;
+    s << (TQ_UINT32)id;
+    s.writeBytes(path.data(), len);
+    s << pflags;
+    s << attr;
+
+    putPacket(p);
+    getPacket(p);
+
+    TQDataStream r(p, IO_ReadOnly);
+    TQ_UINT8 type;
+
+    r >> type >> id;
+    if( id != expectedId ) {
+        kdError(KIO_SFTP_DB) << "sftpOpen(): sftp packet id mismatch" << endl;
+        return -1;
+    }
+
+    if( type == SSH2_FXP_STATUS ) {
+        TQ_UINT32 errCode;
+        r >> errCode;
+        return errCode;
+    }
+
+    if( type != SSH2_FXP_HANDLE ) {
+        kdError(KIO_SFTP_DB) << "sftpOpen(): unexpected message type of " << type << endl;
+        return -1;
+    }
+
+    r >> handle;
+    if( handle.size() > 256 ) {
+        kdError(KIO_SFTP_DB) << "sftpOpen(): handle exceeds max length" << endl;
+        return -1;
+    }
+
+    kdDebug(KIO_SFTP_DB) << "sftpOpen(): handle (" << handle.size() << "): [" << handle << "]" << endl;
+    return SSH2_FX_OK;
+}
+
+
+int sftpProtocol::sftpRead(const TQByteArray& handle, TDEIO::filesize_t offset, TQ_UINT32 len, TQByteArray& data)
+{
+ //   kdDebug(KIO_SFTP_DB) << "sftpRead( offset = " << offset << ", len = " << len << ")" << endl;
+    TQByteArray p;
+    TQDataStream s(p, IO_WriteOnly);
+
+    TQ_UINT32 id, expectedId;
+    id = expectedId = mMsgId++;
+    s << (TQ_UINT32)(1 /*type*/ + 4 /*id*/ +
+                    4 /*str length*/ + handle.size() +
+                    8 /*offset*/ + 4 /*length*/);
+    s << (TQ_UINT8)SSH2_FXP_READ;
+    s << (TQ_UINT32)id;
+    s << handle;
+    s << offset; // we don't have a convienient 64 bit int so set upper int to zero
+    s << len;
+
+    putPacket(p);
+    getPacket(p);
+
+    TQDataStream r(p, IO_ReadOnly);
+    TQ_UINT8 type;
+
+    r >> type >> id;
+    if( id != expectedId ) {
+        kdError(KIO_SFTP_DB) << "sftpRead: sftp packet id mismatch" << endl;
+        return -1;
+    }
+
+    if( type == SSH2_FXP_STATUS ) {
+        TQ_UINT32 errCode;
+        r >> errCode;
+        kdError(KIO_SFTP_DB) << "sftpRead: read failed with code " << errCode << endl;
+        return errCode;
+    }
+
+    if( type != SSH2_FXP_DATA ) {
+        kdError(KIO_SFTP_DB) << "sftpRead: unexpected message type of " << type << endl;
+        return -1;
+    }
+
+    r >> data;
+
+    return SSH2_FX_OK;
+}
+
+
+int sftpProtocol::sftpWrite(const TQByteArray& handle, TDEIO::filesize_t offset, const TQByteArray& data){
+//    kdDebug(KIO_SFTP_DB) << "sftpWrite( offset = " << offset <<
+//        ", data sz = " << data.size() << ")" << endl;
+    TQByteArray p;
+    TQDataStream s(p, IO_WriteOnly);
+
+    TQ_UINT32 id, expectedId;
+    id = expectedId = mMsgId++;
+    s << (TQ_UINT32)(1 /*type*/ + 4 /*id*/ +
+                    4 /*str length*/ + handle.size() +
+                    8 /*offset*/ +
+                    4 /* data size */ + data.size());
+    s << (TQ_UINT8)SSH2_FXP_WRITE;
+    s << (TQ_UINT32)id;
+    s << handle;
+    s << offset; // we don't have a convienient 64 bit int so set upper int to zero
+    s << data;
+
+//    kdDebug(KIO_SFTP_DB) << "sftpWrite(): SSH2_FXP_WRITE, id:"
+//        << id << ", handle:" << handle << ", offset:" << offset << ", some data" << endl;
+
+//    kdDebug(KIO_SFTP_DB) << "sftpWrite(): send packet [" << p << "]" << endl;
+
+    putPacket(p);
+    getPacket(p);
+
+//    kdDebug(KIO_SFTP_DB) << "sftpWrite(): received packet [" << p << "]" << endl;
+
+    TQDataStream r(p, IO_ReadOnly);
+    TQ_UINT8 type;
+
+    r >> type >> id;
+    if( id != expectedId ) {
+        kdError(KIO_SFTP_DB) << "sftpWrite(): sftp packet id mismatch, got "
+            << id << ", expected " << expectedId << endl;
+        return -1;
+    }
+
+    if( type != SSH2_FXP_STATUS ) {
+        kdError(KIO_SFTP_DB) << "sftpWrite(): unexpected message type of " << type << endl;
+        return -1;
+    }
+
+    TQ_UINT32 code;
+    r >> code;
+    return code;
+}
+
+