socket-programming

Follow Beej's tutorial on network programming

To compile and run

• Show IP address of a domain name

make ip
./showip <domain.name>

• TCP server and client

make tcp
./server
./client <hostname>

• UDP listener and talker

make udp
./listener
./talker <hostname> <message>

• Multiperson chat server

make chat
./chatserver

• Transfer files from clients to server

make files
./recv_file
./send_file <hostname> <file/path>

• MD5 hashing

String to hash

make md5
./md5 <string-to-hash> [<string> [...] ]

md5sum implementation

make md5check
./md5check <file> [<file> [...] ]

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References

1. Beej's Guide to Network Programming
2. Ron Rivest, modified by Jim Kingdon, MD5 implementation, 1997, Cyclic Software