请问各位高手，我在windows socket编写点对点文件传输过程中遇到两个问题：
1.传输的文件大小受限。
2.只能传输txt文件。图片和.rar都不能发送。
请高手指点，谢谢。
可以留言，也可以发我信箱，谢谢。79146069@


代码如下：// TransferSocket.cpp : implementation file
//

#include "stdafx.h"
#include "Transfer.h"
#include "TransferSocket.h"
#include "TransferDlg.h"

void CTransferSocket::OnReceive(int nErrorCode)
{
    // TODO: Add your specialized code here and/or call the base class
        CMessg msg;
        msg.Serialize(*m_aSessionIn);

        if(msg.m_iCommand==0)
        {
            m_dlg->m_RemoteShareFiles.RemoveAll();
            CListBox* list=(CListBox*)(m_dlg->GetDlgItem(IDC_REMOTE_FILE_LIST));
            list->ResetContent();
            CString temp,name;
            int i;
            temp=msg.m_strText;
            TRACE("%s\n",msg.m_strText);
            temp.TrimLeft("!");//!
            while((i=temp.Find("!"))!=-1)
            {

                name=temp.Left(i);
                TRACE("%s\n",name);
                TRACE("%s\n",temp);
                temp=temp.Mid(name.GetLength()+1);
                m_dlg->m_RemoteShareFiles.Add(name);
                list->AddString(name);
            }
            m_dlg->m_RemoteShareFiles.Add(temp);
            list->AddString(temp);
            return;
        }

        if(msg.m_iCommand==1)
        {
            CString temp,name;
            int i;
            temp=msg.m_strText;
            temp.TrimLeft("!");//!
            while((i=temp.Find("!"))!=-1)
            {
                name=temp.Left(i);
                temp=temp.Mid(name.GetLength()+1);
                m_dlg->m_NeedTransferFiles.Add(name);
            }
            m_dlg->m_NeedTransferFiles.Add(temp);
            m_dlg->SetWindowText("需要传输的文件名称处理完毕!");
            for(i=0;i<m_dlg->m_NeedTransferFiles.GetSize();i++)
            {
                CMessg m;
                TRACE("%s\n",m_dlg->m_NeedTransferFiles[i]);
                CFile file(m_dlg->m_NeedTransferFiles[i],CFile::modeRead|CFile::shareDenyWrite);
                m_dlg->SetWindowText("正在传输"+m_dlg->m_NeedTransferFiles[i]);
                byte *buffer=NULL;
                long count=file.GetLength();
                buffer= new byte[count];
                file.Read(buffer,count);
                m.m_iCommand=2;
                m.m_strText=buffer;
                m_dlg->m_TransferSocket.SendMessage(&m);
                m_dlg->SetWindowText(m_dlg->m_NeedTransferFiles[i]+"传输完毕!");
                file.Close();
            }
            m_dlg->m_NeedTransferFiles.RemoveAll();
            return;
        }

        //接收文件
        if(msg.m_iCommand==2)
        {
            int k=m_dlg->m_NeedReceiveFiles[0].ReverseFind('\\');
            CString tt;
            tt=m_dlg->m_NeedReceiveFiles[0].Mid(k+1);
            tt="E:\\"+tt;
            if(m_file.Open(tt,CFile::modeWrite|CFile::modeCreate)==FALSE)
            {
                AfxMessageBox("Failed to open the file!");
                m_file.Close();
            }
            m_file.Write(msg.m_strText,msg.m_strText.GetLength());
            m_file.Close();
            AfxMessageBox(m_dlg->m_NeedReceiveFiles[0]+"下载完毕!");
            return;
        }

自己顶下。。。。。。。。。

高手都忙啥了.................................,再顶

估计是在TransferSocket.h这个文件中

谢谢你的关注，但是我看了.h文件，里面也没有呀。
#if !defined(AFX_TRANSFERSOCKET_H__B3710126_6EF0_4A33_87F5_680BB011F089__INCLUDED_)
#define AFX_TRANSFERSOCKET_H__B3710126_6EF0_4A33_87F5_680BB011F089__INCLUDED_

#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000
// TransferSocket.h : header file
//


#include "afxsock.h"
#include "CMessg.h"

class CTransferDlg;

/////////////////////////////////////////////////////////////////////////////
// CTransferSocket command target

class CTransferSocket : public CSocket
{
// Attributes
public:
    CArchive* m_aSessionIn;
    CArchive* m_aSessionOut;
    CSocketFile* m_sfSocketFile;
    CTransferDlg * m_dlg;
    bool m_bInit;
    bool m_bClose;
    CFile m_file;

public:
    void Init(CTransferDlg * dlg);
    BOOL SendMessage(CMessg * msg);
    void CloseSocket();

// Operations
public:
    CTransferSocket();
    virtual ~CTransferSocket();

// Overrides
public:
    // ClassWizard generated virtual function overrides
    //{{AFX_VIRTUAL(CTransferSocket)
    public:
    virtual void OnReceive(int nErrorCode);
    virtual void OnClose(int nErrorCode);
    //}}AFX_VIRTUAL

    // Generated message map functions
    //{{AFX_MSG(CTransferSocket)
        // NOTE - the ClassWizard will add and remove member functions here.
    //}}AFX_MSG

// Implementation
protected:
};

/////////////////////////////////////////////////////////////////////////////

//{{AFX_INSERT_LOCATION}}
// Microsoft Visual C++ will insert additional declarations immediately before the previous line.

#endif // !defined(AFX_TRANSFERSOCKET_H__B3710126_6EF0_4A33_87F5_680BB011F089__INCLUDED_)