I would like to transfer image file to C server from android.
Sending filename -> filesize -> imagefile
when I tried to send file size, it concatenate with imagefile. I am not sure why.
I do not see difference between sending filename and filesize.
When I send filename, it does not concatenate with filesize. 

From java side(android)

```
DataOutputStream imgBodyOut = new DataOutputStream(client.getOutputStream());
                //sending name of the file
                buffer=fileName.getBytes();
                imgBodyOut.write(buffer);
                imgBodyOut.flush();
                //sending size of the file
                buffer=((Long.toString(filesize))+'\n').getBytes();
                imgBodyOut.write(buffer);
                imgBodyOut.flush();
                //sending body
                DataInputStream imgBodyIn = new DataInputStream(new FileInputStream(imgFile));
                int len;
                while(filesize >0&& (len=imgBodyIn.read(buffer))>0){
                    imgBodyOut.write(buffer,0,len);
                    imgBodyOut.flush();
                    filesize-=len;
                }
                imgBodyOut.flush();
                imgBodyIn.close(); 
                imgBodyOut.close();

```

C(server side)
//receiving file name

```
read(connfd,filename_str,sizeof(filename_str));
printf("File name : %s.JPG\n",filename_str);
//receiving file size
read(connfd,filesize_str,sizeof(filesize_str));
printf("File size : %sbytes\n",filesize_str);

//Test filesize
        int i=0;
        while(i<1024){
            printf("%c",filesize_str[i]);
            i++;
        }

```

Result in C 

```
File name : P1011474.JPG
File size : 714438bytes
714438����8EExifII*
                   �����(1 �2i�&��2�OLYMPUS DIGITAL CAMERA         OLYMPUS CORPORATIONX100,D540Z,C310ZHHv775u-770000:00:00 00:00:00PrintIM0250�

�
����������� '
                                   '�'''^'�'�''!������"�'�d�0220��������
���� �
�|�H��}�0100��������������    �
�
�

```

Due to concatenation, I have trouble sending image. Thank you for reading.