ft_traceroute 🛰️

ft_traceroute is a simplified implementation of the classic traceroute utility. It traces the route that packets take to a network host, displaying each hop along the way.

Features ✨

• Sends UDP probes with increasing TTL to discover each hop to the destination.
• Displays the IP address and round-trip time for each hop.
• Bonus: Additional options and features (see below).

Usage 🚀

./ft_traceroute <destination>

For the bonus version (with extra options):

./ft_traceroute_bonus <destination> [options]

Options

Options available in all versions:

• --help Show the help message

Bonus options 🎁

Available only in the bonus version (ft_traceroute_bonus):

• -f, --first-hop=NUM Set the initial hop (TTL) value (default: 1)
• -m, --max-hop=NUM Set the maximum number of hops to probe (default: 64)
• -p, --port=PORT Set the destination port for probes (default: 33434)
• -q, --tries=NUM Set the number of probe packets per hop (default: 3)
• --resolve-hostnames Resolve and display hostnames in addition to IP addresses
• -w, --wait=NUM Set the timeout in seconds to wait for each response (default: 3)
• -?, --help Show the help message
• --usage Show a short usage message
• -V, --version Show program version information

Example

Mandatory

sudo ./ft_traceroute google.com

Bonus

# Set first hop to 5, max hop to 30, and use 5 tries per hop
sudo ./ft_traceroute_bonus -f 5 -m 30 -q 5 8.8.8.8

Build 🛠

To build the project with bonus features, run:

make bonus

Or, to build the mandatory part only:

make

Requirements 📦

• GCC or Clang
• Make

Notes 📝

• Root privileges may be required to receive raw icmp packets.
• This project is for educational purposes.

License 📄

WTFPL – Do What the Fuck You Want to Public License