README.md

Clang Exercises

This repository contains programs I developed while practicizing coding in C for linux.

Project structure

.
├── Makefile
├── README.md
├── install_dependencies.sh
└── src
    └── net
        ├── 00_arp_eth_frames
        │   ├── arp.c
        │   ├── arp_receive.c
        │   ├── receive_router_advertisement.c
        │   ├── send_router_advertisement.c
        │   ├── send_router_solicitation.c
        │   └── tcp_udp_icmp_traceroute.c
        ├── 01_raw_sockets
        │   ├── icmp.c
        │   ├── tcp.c
        │   ├── tcp_http_get.c
        │   └── udp.c
        ├── 02_layer2_raw
        │   ├── icmp4_l2.c
        │   ├── icmp4_l2_ping.c
        │   ├── tcp4_http_get_l2.c
        │   ├── tcp4_l2.c
        │   └── udp4_l2.c
        ├── 03_cooked_packets
        │   ├── icmp4_cooked.c
        │   ├── tcp4_cooked.c
        │   ├── tcp4_cooked_http_get.c
        │   └── udp4_cooked.c
        ├── 05_fragmentation
        │   ├── send_icmp4_fragmented_packet.c
        │   ├── send_tcp4_framented_packet.c
        │   └── send_udp4_fragmented_packet.c
        ├── 06_ipv4_tcp_options
        │   ├── tcp4_2ip-opts_2tcp_opts.c
        │   ├── tcp4_maxseg-security.c
        │   ├── tcp4_maxseg-timestamp.c
        │   ├── tcp_max_segment_option.c
        │   └── tcp_max_segment_option_and_timestamp.c
        ├── 07_ipv6_intro
        │   ├── icmp6_ancillary1.c
        │   ├── icmp6_ancillary2.c
        │   ├── icmp6_ancillary3.c
        │   ├── ipv6_neightboor_advertisement.c
        │   ├── ipv6_neightboor_solicitation.c
        │   ├── ipv6_receive_neightboor_solicitation.c
        │   ├── ipv6_receive_router_advertisement.c
        │   ├── ipv6_router_advertisement.c
        │   └── ipv6_router_solicitation.c
        ├── 08_ipv6_ethernet_frames
        │   ├── icmp6.c
        │   ├── icmp6_ping.c
        │   ├── tcp6_http_get.c
        │   ├── tcp6_syn_packet.c
        │   └── udp6.c
        ├── 09_ipv6_cooked_packets
        │   ├── icmp6_cooked.c
        │   ├── tcp6_cooked.c
        │   ├── tcp6_cooked_http_get.c
        │   └── udp6_cooked.c
        ├── 10_ipv6_over_ipv4
        │   ├── icmp6_6to4.c
        │   ├── icmp6_6to4_ping.c
        │   ├── tcp6_6to4.c
        │   ├── tcp6_6to4_http_get.c
        │   └── udp6_6to4.c
        ├── 11_ipv6_fragmentation
        │   ├── data
        │   ├── icmp6_6to4_frag.c
        │   ├── icmp6_frag.c
        │   ├── tcp6_6to4_frag.c
        │   ├── tcp6_frag.c
        │   ├── udp6_6to4_frag.c
        │   └── udp6_frag.c
        ├── 12_ipv6_with_tcp_options
        │   ├── tcp6_maxseg.c
        │   └── tcp6_maxseg_tsopt.c
        ├── 13_ipv6_tcp_hop_by_hop_ext
        │   ├── data
        │   └── tcp6_hop_frag.c
        ├── 14_ipv6_authentication_ext_header
        │   ├── data
        │   ├── tcp6_hop_auth-tr_frag.c
        │   └── tcp6_hop_auth-tun_frag.c
        ├── 15_encapsulating_security_payload_ESP_ext_header
        │   ├── data
        │   ├── tcp6_hop_esp-tr_frag.c
        │   └── tcp6_hop_esp-tun_frag.c
        ├── 16_destination_ext_header
        │   ├── data
        │   └── tcp6_hop_dst_frag.c
        ├── 17_routing_extension_header
        │   ├── data
        │   └── tcp6_hop_route3_frag.c
        ├── data
        └── examples
            ├── arp-poison.c
            ├── dns_query.c
            ├── get_local_ip-1.c
            ├── get_local_ip.c
            ├── handle_multiple_connections.c
            ├── icmp_ping_flood.c
            ├── packet-sniffer-libpcap.c
            ├── packet_sniffer_bsd.c
            ├── packet_sniffer_win.c
            ├── port_scanner.cc
            ├── raw_packet_sniffer.c
            ├── raw_sockets_linux.c
            ├── raw_udp_sockets.c
            ├── raw_whois.c
            ├── receive_data_full.c
            ├── resolve_hostnames-1.c
            ├── resolve_hostnames.c
            ├── resolve_mac_addr_from_interface.c
            ├── socket_client.cpp
            ├── spli_ip_port_with_link_type.c
            ├── struct_pointer_and_malloc.c
            ├── syn_flood.c
            ├── tcp_client.c
            ├── tcp_server.c
            ├── tcp_syn_portscan.c
            ├── threaded_send_data_wo_struct.c
            ├── udp_client.c
            ├── udp_server.c
            ├── udpserver.c
            └── whois.c

Build

To build the files in this project, install the dependencies, then run one of the following make commands from the projects root directory, the resulting binaries will be placed in the dist directory.

Install Dependencies

./install_dependencies.sh

Building the Linux Binaries

make linux

Building the BSD Binaries

make bsd

Debug Builds

To build the source files with debug symbols, run simply append the DEBUG=1 flag into one of the make commands.

Building the Linux Binaries including debug symbols

make linux DEBUG=1

Building the BSD Binaries including debug symbols

make bsd DEBUG=1