s-you / cwebsocket

High performance websocket client/server in ANSI C

cwebsocket

High performance websocket client/server

The goal of cwebsocket is to provide a portable, high performance websocket client/server, especially on low power embedded systems.

cwebsocket is currently in a development state. You may encounter bugs. Report them for a timely fix.

Successful tests have been conducted on the following architectures:

1. x86
2. x86_64
3. ARM

cwebsocket is compliant with the following standards:

1. ANSI C
2. POSIX
3. RFC 6455

Dependencies

1. autoconf
2. automake
3. libtool
4. libssl-dev
5. libev-dev

Build

By defaults, cwebsocket is built with multi-threading and SSL support.

To build, run:

./autogen.sh
./configure
make
sudo make install

To built without multi-threading:

./configure --enable-threads=no

To build without SSL:

./configure --enable-ssl=no

Client

The websocket client is able to connect and exchange data with any RFC 6455 compliant server.

./websocket-client ws://echo.websocket.org
./websocket-client wss://echo.websocket.org

TODO

1. More testing on various embedded devices
2. Implement pluggable sub-protocols (socketio, WAMP, custom)
3. Implement pluggable extensions on the client per RFC (section 9)
4. Get a basic websocket server developed