/2016-ITCN-file-transfer

Lab for Introduction to Computer Network

Primary LanguageC

File-transfer

Today's mission

You will need to write simple file transfer client and server in language C.
Please modify the sample code to achieve this goal.
Fill in your own code by following the TODO Hint in the code.

/**
  TODO:
  print something here.
**/

Install

With simple browser

You can click Download ZIP to download a zip file directly

With Git

  1. Install Git on your system 
    $ sudo apt-get install git
  2. Open command prompt
  3. Input git clone https://github.com/HSNL-TAs/2016-ITCN-file-transfer.git

Compile and Run

Compile with makefile

What in makefile

all: server.c client.c
	gcc server.c -o server
	gcc client.c -o client

clean:
	rm -rf server
	rm -rf client

compile

$ make

run

$ ./server 8888

Open another termial.

$ ./client 127.0.0.1 8888

Requirement

Server

  • User can assign port to server

  • Returns files list to client when the client connects immediately to the server. (We have provided this function which scans all the file under the same directory.)

     # Client side
 $ ./client 127.0.0.1 8888
 [✓] Connect to server.
 [✓] Server reply!
 -----------
 Files on server:
 lab3_2_spec.pdf
 test.png
 test.txt
 -----------
 Enter the filename:

  • Returns files which client wants to download.

     # Client side
 Enter the filename: test.txt
 [-] Downloading `test.txt` ...
 [✓] Download successfully!
 -----------
 Enter the filename: # user can continue to send download request.

Client

  • User can assign ip address and port to connect the server with command line argument.
  • Support user inputs the file name to download file from server, per file per input.
  • Input .exit to disconnect from server.

NOTE: Server and client should keep connected unless user inputs .exit

Example

Deadline

Please also uplaod your code and a screenshot of your result to ilms system. ( Package them as .zip format and name after your student ID)

  • Deadline: 100%, before 2016/11/20 23:59 (Sun.)
  • Deadline: 80%, before 2016/11/27 23:59 (Sun.)
  • Deadline: 60%, before 2016/12/4 23:59 (Sun.)

After 2016/12/4, your submission is not accepted.

Question

Please feel free to ask questions at

  • Here, or
  • On the iLms forum, or
  • Come at Office Hour (15:30 ~ 17:20 on Wednesday, 綜二 705)