anthonygclark / net.hh

Modern C++ BSD Socket Wrappers

net.hh

An attempt to simplify the Berkley Sockets API

• Removes boilerplate
• APIs return objects where applicable (instead of half-filled socket structures and error codes)
• Exceptions.
• Header only. Inclusion of net_buffer.hh is optional via USE_NET_BUFFER macro.

Example

#define USE_NET_BUFFER
#include "net.hh"

int main()
{
    /* UDP Socket which will interact with IPv4 address */
    net::ipv4::socket sock4 {SOCK_DGRAM};
    /* TCP Socket which will interact with IPv6 address */
    net::ipv6::socket sock6 {SOCK_STREAM};

    /* IPv4 wildcard address (0.0.0.0) */
    net::ipv4::address addr4 {net::ipv4::address::ANY, 9998};
    /* IPv6 loopback */
    net::ipv6::address addr6 {"::1", 9999};

    /* Create some buffer of data (unique_ptr) and send
     * to the IPv4 address
     */
    auto buffer = net::make_buffer(512);
    sock4.sendto(*buffer.get(), addr4);

    /* Bind and listen */
    sock6.bind(addr6);
    sock6.listen();

    /* Wait for a client...
     * client.first == net::ipv6::socket
     * client.second == net::Address with AF_INET6
     */
    auto client = sock6.accept();
}

TODO

• Fill out CRTP base classes (socket, address)
• Raw sockets, DCCP, Multicast, Broadcast, TUN, TAP
• IP and UDP header construction.
• Linux-only optional header with netlink sockets and netfilter bindings