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libwebsockets/minimal-examples/raw/minimal-raw-vhost
Andy Green c9731c5f17 type comparisons: fixes
This is a huge patch that should be a global NOP.

For unix type platforms it enables -Wconversion to issue warnings (-> error)
for all automatic casts that seem less than ideal but are normally concealed
by the toolchain.

This is things like passing an int to a size_t argument.  Once enabled, I
went through all args on my default build (which build most things) and
tried to make the removed default cast explicit.

With that approach it neither change nor bloat the code, since it compiles
to whatever it was doing before, just with the casts made explicit... in a
few cases I changed some length args from int to size_t but largely left
the causes alone.

From now on, new code that is relying on less than ideal casting
will complain and nudge me to improve it by warnings.
2021-01-05 10:56:38 +00:00
..
CMakeLists.txt cmake: latest cmake shows dep warnings for scripts < 2.8.12 2020-12-06 19:44:54 +00:00
localhost-100y.cert raw-skt: server: allow tls 2019-06-29 21:08:36 +01:00
localhost-100y.key raw-skt: server: allow tls 2019-06-29 21:08:36 +01:00
minimal-raw-vhost.c type comparisons: fixes 2021-01-05 10:56:38 +00:00
README.md raw-skt: server: allow tls 2019-06-29 21:08:36 +01:00

lws minimal ws server raw vhost

This demonstrates setting up a vhost to listen and accept raw sockets. Raw sockets are just sockets... lws does not send anything on them or interpret by itself what it receives on them. So you can implement arbitrary tcp protocols using them.

This isn't very useful standalone as shown here for clarity, but you can freely combine a raw socket vhost with other lws server and client features and other vhosts handling http or ws.

Becuase raw socket events have their own callback reasons, the handlers can be integrated in a single protocol that also handles http and ws server and client callbacks without conflict.

build

 $ cmake . && make

usage

-s means listen using tls

 $ ./lws-minimal-raw-vhost
[2018/03/22 14:49:47:9516] USER: LWS minimal raw vhost
[2018/03/22 14:49:47:9673] NOTICE: Creating Vhost 'default' port 7681, 1 protocols, IPv6 off
[2018/03/22 14:49:52:3789] USER: LWS_CALLBACK_RAW_ADOPT
[2018/03/22 14:49:57:4271] USER: LWS_CALLBACK_RAW_CLOSE
 $ nc localhost 7681
hello
hello

Connect one or more sessions to the server using netcat... lines you type into netcat are sent to the server, which echos them to all connected clients.