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CL: Mongoose Web Server: Add UDP client example Resolves https://github.com/cesanta/mongoose/issues/886 PUBLISHED_FROM=fcce2f1de3a800147e9246ffa01c428c1b8f552b
61 lines
1.2 KiB
C
61 lines
1.2 KiB
C
/*
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* Copyright (c) 2014-2018 Cesanta Software Limited
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* All rights reserved
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*
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* This program sends provided data to the provided UDP server and port, and
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* then prints all incoming data, until user stops the program.
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*/
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#include "mongoose.h"
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#define ADDR_BUF_SIZE 256
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static void ev_handler(struct mg_connection *nc, int ev, void *ev_data) {
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switch (ev) {
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case MG_EV_RECV:
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fprintf(stderr, "%.*s", (int) nc->recv_mbuf.len, nc->recv_mbuf.buf);
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nc->recv_mbuf.len = 0;
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break;
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default:
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break;
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}
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(void) ev_data;
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}
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int main(int argc, char *argv[]) {
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struct mg_mgr mgr;
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char addr[ADDR_BUF_SIZE];
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mg_mgr_init(&mgr, NULL);
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if (argc != 3) {
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fprintf(stderr, "Usage: %s <server:port> <data>\n", argv[0]);
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exit(EXIT_FAILURE);
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}
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snprintf(addr, sizeof(addr), "udp://%s", argv[1]);
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fprintf(stderr, "Connecting to '%s'\n", addr);
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struct mg_connection *nc = mg_connect(&mgr, addr, ev_handler);
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if (nc == NULL) {
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fprintf(stderr, "Failed to connect");
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exit(1);
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}
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fprintf(stderr, "Sending '%s'\n", argv[2]);
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mg_send(nc, argv[2], strlen(argv[2]));
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fprintf(stderr, "Waiting for data\n");
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for (;;) {
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mg_mgr_poll(&mgr, 10);
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}
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mg_mgr_free(&mgr);
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return 0;
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}
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