mirror of
https://github.com/warmcat/libwebsockets.git
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8829c2f365
This converts several of the selftests to return a status in their exit code about whether they 'worked'. A small bash script framework is added, with a selftest.sh in the mininmal example dirs that support it, and a ./minimal-examples/selftests.sh script that can be run from the build dir with no args that discovers and runs all the selftest.sh scripts underneath. That is also integrated into travis and the enabled tests must pass now for travis to pass. Travis does not have a modern libuv so it can't run a couple of tests which are nulled out if it sees it's running in travis env.
140 lines
3.4 KiB
C
140 lines
3.4 KiB
C
/*
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* lws-minimal-ws-client
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*
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* Copyright (C) 2018 Andy Green <andy@warmcat.com>
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*
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* This file is made available under the Creative Commons CC0 1.0
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* Universal Public Domain Dedication.
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*
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* This demonstrates the a minimal ws client using lws.
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*
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* It connects to https://libwebsockets.org/ and makes a
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* wss connection to the dumb-increment protocol there. While
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* connected, it prints the numbers it is being sent by
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* dumb-increment protocol.
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*/
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#include <libwebsockets.h>
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#include <string.h>
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#include <signal.h>
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static int interrupted, rx_seen, test;
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static struct lws *client_wsi;
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static int
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callback_dumb_increment(struct lws *wsi, enum lws_callback_reasons reason,
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void *user, void *in, size_t len)
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{
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switch (reason) {
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/* because we are protocols[0] ... */
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case LWS_CALLBACK_CLIENT_CONNECTION_ERROR:
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lwsl_err("CLIENT_CONNECTION_ERROR: %s\n",
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in ? (char *)in : "(null)");
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client_wsi = NULL;
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break;
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case LWS_CALLBACK_CLIENT_ESTABLISHED:
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lwsl_user("%s: established\n", __func__);
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break;
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case LWS_CALLBACK_CLIENT_RECEIVE:
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lwsl_user("RX: %s\n", (const char *)in);
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rx_seen++;
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if (test && rx_seen == 10)
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interrupted = 1;
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break;
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case LWS_CALLBACK_CLIENT_CLOSED:
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client_wsi = NULL;
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break;
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default:
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break;
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}
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return lws_callback_http_dummy(wsi, reason, user, in, len);
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}
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static const struct lws_protocols protocols[] = {
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{
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"dumb-increment-protocol",
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callback_dumb_increment,
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0,
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0,
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},
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{ NULL, NULL, 0, 0 }
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};
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static void
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sigint_handler(int sig)
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{
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interrupted = 1;
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}
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int main(int argc, const char **argv)
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{
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struct lws_context_creation_info info;
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struct lws_client_connect_info i;
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struct lws_context *context;
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const char *p;
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int n = 0, logs = LLL_USER | LLL_ERR | LLL_WARN | LLL_NOTICE
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/* for LLL_ verbosity above NOTICE to be built into lws, lws
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* must have been configured with -DCMAKE_BUILD_TYPE=DEBUG
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* instead of =RELEASE */
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/* | LLL_INFO */ /* | LLL_PARSER */ /* | LLL_HEADER */
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/* | LLL_EXT */ /* | LLL_CLIENT */ /* | LLL_LATENCY */
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/* | LLL_DEBUG */;
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signal(SIGINT, sigint_handler);
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if ((p = lws_cmdline_option(argc, argv, "-d")))
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logs = atoi(p);
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test = !!lws_cmdline_option(argc, argv, "-t");
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lws_set_log_level(logs, NULL);
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lwsl_user("LWS minimal ws client rx [-d <logs>] [--h2] [-t (test)]\n");
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memset(&info, 0, sizeof info); /* otherwise uninitialized garbage */
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info.options = LWS_SERVER_OPTION_DO_SSL_GLOBAL_INIT;
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info.port = CONTEXT_PORT_NO_LISTEN; /* we do not run any server */
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info.protocols = protocols;
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#if defined(LWS_WITH_MBEDTLS)
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/*
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* OpenSSL uses the system trust store. mbedTLS has to be told which
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* CA to trust explicitly.
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*/
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info.client_ssl_ca_filepath = "./libwebsockets.org.cer";
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#endif
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context = lws_create_context(&info);
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if (!context) {
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lwsl_err("lws init failed\n");
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return 1;
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}
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memset(&i, 0, sizeof i); /* otherwise uninitialized garbage */
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i.context = context;
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i.port = 443;
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i.address = "libwebsockets.org";
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i.path = "/";
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i.host = i.address;
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i.origin = i.address;
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i.ssl_connection = LCCSCF_USE_SSL;
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i.protocol = protocols[0].name; /* "dumb-increment-protocol" */
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i.pwsi = &client_wsi;
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if (lws_cmdline_option(argc, argv, "--h2"))
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i.alpn = "h2";
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lws_client_connect_via_info(&i);
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while (n >= 0 && client_wsi && !interrupted)
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n = lws_service(context, 1000);
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lws_context_destroy(context);
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lwsl_user("Completed %s\n", rx_seen > 10 ? "OK" : "Failed");
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return rx_seen > 10;
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}
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