| /* ==================================================================== |
| * The Apache Software License, Version 1.1 |
| * |
| * Copyright (c) 2000-2001 The Apache Software Foundation. All rights |
| * reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in |
| * the documentation and/or other materials provided with the |
| * distribution. |
| * |
| * 3. The end-user documentation included with the redistribution, |
| * if any, must include the following acknowledgment: |
| * "This product includes software developed by the |
| * Apache Software Foundation (http://www.apache.org/)." |
| * Alternately, this acknowledgment may appear in the software itself, |
| * if and wherever such third-party acknowledgments normally appear. |
| * |
| * 4. The names "Apache" and "Apache Software Foundation" must |
| * not be used to endorse or promote products derived from this |
| * software without prior written permission. For written |
| * permission, please contact apache@apache.org. |
| * |
| * 5. Products derived from this software may not be called "Apache", |
| * nor may "Apache" appear in their name, without prior written |
| * permission of the Apache Software Foundation. |
| * |
| * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED |
| * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR |
| * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF |
| * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
| * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
| * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT |
| * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| * SUCH DAMAGE. |
| * ==================================================================== |
| * |
| * This software consists of voluntary contributions made by many |
| * individuals on behalf of the Apache Software Foundation. For more |
| * information on the Apache Software Foundation, please see |
| * <http://www.apache.org/>. |
| * |
| * Portions of this software are based upon public domain software |
| * originally written at the National Center for Supercomputing Applications, |
| * University of Illinois, Urbana-Champaign. |
| */ |
| |
| #include "ap_config.h" |
| #include "ap_mmn.h" |
| #include "httpd.h" |
| #include "http_config.h" |
| #include "http_connection.h" |
| |
| AP_DECLARE_DATA module echo_module; |
| |
| typedef struct { |
| int bEnabled; |
| } EchoConfig; |
| |
| static void *create_echo_server_config(apr_pool_t *p, server_rec *s) |
| { |
| EchoConfig *pConfig = apr_pcalloc(p, sizeof *pConfig); |
| |
| pConfig->bEnabled = 0; |
| |
| return pConfig; |
| } |
| |
| static const char *echo_on(cmd_parms *cmd, void *dummy, int arg) |
| { |
| EchoConfig *pConfig = ap_get_module_config(cmd->server->module_config, |
| &echo_module); |
| pConfig->bEnabled = arg; |
| |
| return NULL; |
| } |
| |
| static int process_echo_connection(conn_rec *c) |
| { |
| char buf[1024]; |
| EchoConfig *pConfig = ap_get_module_config(c->base_server->module_config, |
| &echo_module); |
| |
| if (!pConfig->bEnabled) { |
| return DECLINED; |
| } |
| |
| for ( ; ; ) { |
| apr_ssize_t r, w; |
| r = sizeof(buf); |
| apr_recv(c->client_socket, buf, &r); |
| if (r <= 0) { |
| break; |
| } |
| w = r; |
| apr_send(c->client_socket, buf, &w); |
| if (w != r) { |
| break; |
| } |
| } |
| return OK; |
| } |
| |
| static const command_rec echo_cmds[] = |
| { |
| AP_INIT_FLAG("ProtocolEcho", echo_on, NULL, RSRC_CONF, |
| "Run an echo server on this host"), |
| { NULL } |
| }; |
| |
| static void register_hooks(apr_pool_t *p) |
| { |
| ap_hook_process_connection(process_echo_connection, NULL, NULL, |
| APR_HOOK_MIDDLE); |
| } |
| |
| AP_DECLARE_DATA module echo_module = { |
| STANDARD20_MODULE_STUFF, |
| NULL, /* create per-directory config structure */ |
| NULL, /* merge per-directory config structures */ |
| create_echo_server_config, /* create per-server config structure */ |
| NULL, /* merge per-server config structures */ |
| echo_cmds, /* command apr_table_t */ |
| register_hooks /* register hooks */ |
| }; |