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libwebsockets/minimal-examples/ws-client/minimal-ws-client-rx
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Fabio Alessandrelli 94f3981bef mbedtls: wrapper: client: Force mbedTLS to attemp to verify cert 
AG: unlike openssl, mbedtls does not load the system trust store.
So this change will make client tls operations that work OK on openssl fail on
mbedtls unless you provide the correct CA cert.

This allows lws to distinguish between untrusted CAs, hostname
mismatches, expired certificates.

NOTE: LCCSCF_ALLOW_SELFSIGNED actually allows for untrusted CAs, and
will also skip hostname verification. This is somewhat a limitiation of
the current lws verification process.

AG: improve error reporting up to the CLIENT_CONNECTION_ERROR argument
and add a note specific to mbedtls in the test client.  Adapt the test
client to note the CA requirement if built with mbedTLS.  Adapt the
minimal test clients to have the CAs available and use them if mbedTLS.
2018-04-06 10:38:03 +08:00
..
CMakeLists.txt minimal: http-server-tls 2018-04-06 10:38:03 +08:00
libwebsockets.org.cer mbedtls: wrapper: client: Force mbedTLS to attemp to verify cert 2018-04-06 10:38:03 +08:00
minimal-ws-client.c mbedtls: wrapper: client: Force mbedTLS to attemp to verify cert 2018-04-06 10:38:03 +08:00
README.md minimal: ws-client-tx and change dir names to match project name 2018-04-06 10:38:03 +08:00

README.md

lws minimal ws client rx

build

 $ cmake . && make

usage

The application goes to https://libwebsockets.org and makes a wss connection using the dumb-increment-protocol. It shows the incrementing number it is being sent over ws as it arrives.

This example only receives things to keep it simple. See minimal-ws-client-tx for code related to sending things. Of course rx and tx are supported in the same protocol.

./lws-minimal-ws-client-rx
[2018/03/14 11:57:24:0689] USER: LWS minimal ws client rx
[2018/03/14 11:57:24:0705] NOTICE: Creating Vhost 'default' port -1, 1 protocols, IPv6 off
[2018/03/14 11:57:24:0710] NOTICE: created client ssl context for default
[2018/03/14 11:57:24:0788] NOTICE: lws_client_connect_2: 0x15b8310: address libwebsockets.org
[2018/03/14 11:57:24:7643] NOTICE: lws_client_connect_2: 0x15b8310: address libwebsockets.org
[2018/03/14 11:57:26:9191] USER: RX: 0
[2018/03/14 11:57:26:9318] USER: RX: 1
[2018/03/14 11:57:27:2182] USER: RX: 2
[2018/03/14 11:57:27:2336] USER: RX: 3
[2018/03/14 11:57:27:2838] USER: RX: 4
[2018/03/14 11:57:27:5173] USER: RX: 5
[2018/03/14 11:57:27:5352] USER: RX: 6
[2018/03/14 11:57:27:5854] USER: RX: 7
[2018/03/14 11:57:27:8156] USER: RX: 8
[2018/03/14 11:57:27:8359] USER: RX: 9
^C[2018/03/14 11:57:27:9884] USER: Completed