babysniff

A simple sniffer written from scratch without any libraries.

It's a toy tool that I created to learn more about network protocols. It's still very rudimentary when compared to tcpdump or wireshark.

Supported protocols

Layer 2

• ETH
• ARP

Layer 3

• ICMP
• IP

Layer 4

• TCP
• UDP

Layer 7

• DNS (wip on EDNS0)