This directory contains examples for using the csnet library on UNIX-like systems. As mentioned in the main README, running the examples requires a running SCION network. Some examples have additional requirements documented below.

The following examples are available:

• udp.c: Shows how to send and receive a UDP packet. Requires a running scripts/run-testserver.sh.
• paths.c: Shows how to fetch the available paths to a specific destination in the network.
• choose_path.c: Shows how to send a packet over a specific path in the network. Requires a running scripts/run-testserver.sh.
• server.c: Shows how to implement a simple server that receives incoming packets. Run scripts/run-testclient.sh to receive a packet.
• simple_quic_client.c: Shows how to implement a simple QUIC client that uses UDP over SCION with the help of ngtcp2. Requires a running scripts/run-quic-server.sh.
• scmp_error.c: Shows how to catch SCMP errors when sending packets. Requires a running scmp_error_generator.c.
• policy.c: Shows how to use a custom path policy. Requires a running scripts/run-testserver.sh.
• bootstrapper.c: Shows how to use the bootstrapper. Requires you to be in a network where DNS-bootstrapping is configured, e.g. in the ETHZ network (via VPN for example).
• messages.c: Shows how to use send and receive messages. Requires a running scripts/run-testserver.sh.
• features.c: Showcases some additional features of the library. Requires a running scripts/run-testserver.sh.