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What is in this directory?
- README this file
- mailclient.c contains source code of mail client
- mailserver.c contains source code of mail server
- mailutils .c routines used by server and client
- common.h header file included by all .c files
- makefile make file to build mailserver and mailclient
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How do i compile my programs?
The 'makefile' is provided just for that purpose. To compile, run
% make
It will create 'mailserver' and 'mailclient'.
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How do i run these programs?
The 'mailserver' program does not have any arguemnts. For example you can run it as follows.
% mailserver
The 'mailclient' program takes the username, ip adress and port no in following format.
% mailclient <user>@<ip-addr> <port>
You run the server first and then many clients. Once the clients are connected, you can give list command on server to see list of members connected and listing of pending emails to be sent out. For every 30 seconds, the server sends out the pending emails. Same user cannot login into a machine again. Users running with same name and on different machines are both physically and technically different users.
You can send an email to user with ip-address in following format
% <user>@<ip-addr> <message>
username cannot ocntain spaces. IP address should be in valid IP4 format. Message cannot be longer than 80 characters. user will receive this message when logs into a machine with the ip-address mentioned only.
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How do I exit from these programs?
In case of client, you can exit by send 'close' command. In case of server, you can just press Ctrl-C to kill it.
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Do these programs run on any machine?
They are compiled and will work on any 32-bit and 64-bit Linux machines. No warranty is given for other kinds of machines.
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A simple email server and client implemented using sockets in C.
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