通过TCP / IP C ++发送文件

Question

我正在尝试创建服务器和客户端TCP / IP。我想将文件从客户端发送到服务器。我知道我必须以二进制模式打开文件。我将数据（从文件中读取）存储在unsigned char数组中。

我做了一个简单的协议：首先，我在第一个字节添加了一个字符“\ x02”。之后，在数据中，我添加了'|'在每个字符“\ x02”之后。

使用小文本可以正常工作。

我的问题：当我使用包含1024个字符“\ x02”的文本文件进行测试时，进度已损坏。

这是我的客户代码：

  FILE *fr = fopen(fpath, "rb");
  char rec[32];

  int inc = 0;
  while(size>0){
     unsigned char buffer[1030];
     unsigned char data[2070] ;
     unsigned char header[1] = {'\x02'};   
     int bytesRead;

     if(size>=1024){
          bytesRead = fread(buffer, 1024, 1, fr);
         } else {
          bytesRead = fread(buffer, size, 1, fr);
         }

     memmove(sms,header,1);

     unsigned char *pch;
     int _countHead = 0;
     pch = (unsigned char*) memchr(buffer,"\x02",bytesRead);
     while(pch != NULL) {
          memmove(buffer + (pch-buffer+2),buffer + (pch-buffer+1),bytesRead);
          memmove(buffer + (pch-buffer+1), "|", 1);
          _countHead ++;
          pch = (unsigned char*) memchr(buffer + (pch - buffer + 1),"\x02",bytesRead);
     }

     memmove(sms,buffer,bytesRead + _countHead);

     send (m_socket,(char*) sms, bytesRead + _countHead,0);
     recv(m_socket,rec,2,0);
     size -= 1024;
     inc++;
  }

     if(NULL != fr){
         fclose(fr);
         fr = NULL;
     }

提前致谢：）

更新

我做了一个新代码作为你的意见：

FILE *fa = fopen(fpath,"rb");

while(size>0){

    unsigned char buffer[1024];
    unsigned char buff[2048];
    unsigned char sms[2064];
    int _countHead = 0;
    int _countEnd = 0;

    if (size >= 1024)
    {
        bytesRead = fread(buffer,1,1024,fa);
    }
    else 
    {   
        bytesRead = fread(buffer,1,size,fa);
    }

    memcpy(buff,buffer,bytesRead);

    memset(sms,'#',2064);
    memset(numstr,'#',7);
    memcpy(sms,header,1);
    itoa(inc,numstr,10);        
    memcpy (sms+1,&numstr,7);

    unsigned char *pch;
    pch = (unsigned char*) memchr(buff,'\x02',bytesRead);
    while(pch != NULL)
    {
        int pos = pch - buff;
        memcpy (buff + pos + 2, buff + pos + 1, bytesRead);
        memcpy (buff + pos + 1, ext, 1);
        pch = (unsigned char*) memchr(buff + pos +1,'\x02',bytesRead - pos);
        _countHead ++;
    }

    pch = (unsigned char*) memchr(buff,'\x03',bytesRead);
    while(pch != NULL)
    {
        int pos = pch - buff;
        memcpy (buff + pos + 2, buff + pos + 1, bytesRead);
        memcpy (buff + pos + 1, ext, 1);
        pch = (unsigned char*) memchr(buff + pos + 1,'\x03',bytesRead);
        _countEnd ++;
    }

    memcpy (sms+8,buff,bytesRead + _countHead + _countEnd);
    memcpy (sms + (bytesRead + _countHead + _countEnd + 8),end,1);      
    memcpy (sms + (bytesRead + _countHead + _countEnd + 9),numstr,7);

    send(m_socket,(char*)sms,bytesRead + _countHead + _countEnd + 16 ,0);
    recv(m_socket,rec,2,0);

    size -= 1024;
}