This is a small test page."; void http_server_serve(struct netconn *conn) { struct netbuf *inbuf; char *buf; u16_t buflen; /* Read the data from the port, blocking if nothing yet there. We assume the request (the part we care about) is in one netbuf */ inbuf = netconn_recv(conn); if (netconn_err(conn) == ERR_OK) { netbuf_data(inbuf, &buf, &buflen); /* Is this an HTTP GET command? (only check the first 5 chars, since there are other formats for GET, and we're keeping it very simple )*/ if (buflen>=5 && buf[0]=='G' && buf[1]=='E' && buf[2]=='T' && buf[3]==' ' && buf[4]=='/' ) { /* Send the HTML header * subtract 1 from the size, since we dont send the \0 in the string * NETCONN_NOCOPY: our data is const static, so no need to copy it */ netconn_write(conn, http_html_hdr, sizeof(http_html_hdr)-1, NETCONN_NOCOPY); /* Send our HTML page */ netconn_write(conn, http_index_html, sizeof(http_index_html)-1, NETCONN_NOCOPY); } } /* Close the connection (server closes in HTTP) */ netconn_close(conn); /* Delete the buffer (netconn_recv gives us ownership, so we have to make sure to deallocate the buffer) */ netbuf_delete(inbuf); } void http_server(void* parameter) { struct netconn *conn, *newconn; /* Create a new TCP connection handle */ conn = netconn_new(NETCONN_TCP); LWIP_ERROR("http_server: invalid conn", (conn != NULL), ); /* Bind to port 80 (HTTP) with default IP address */ netconn_bind(conn, NULL, 80); /* Put the connection into LISTEN state */ netconn_listen(conn); while(1) { newconn = netconn_accept(conn); http_server_serve(newconn); netconn_delete(newconn); } } void httpd_init() { rt_thread_t httpd = rt_thread_create("web", http_server, RT_NULL, 1024, 20, 8); if (httpd != RT_NULL) rt_thread_startup(httpd); }