/* $Id: sipstateless.c 1158 2007-04-06 10:25:23Z bennylp $ *//*  * Copyright (C) 2003-2007 Benny Prijono <benny@prijono.org> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA  *//** * sipcore.c * * A simple program to respond any incoming requests (except ACK, of course!) * with any status code (taken from command line argument, with the default * is 501/Not Implemented). *//* Include all headers. */#include <pjsip.h>#include <pjlib-util.h>#include <pjlib.h>/* If this macro is set, UDP transport will be initialized at port 5060 */#define HAS_UDP_TRANSPORT/* If this macro is set, TCP transport will be initialized at port 5060 */#define HAS_TCP_TRANSPORT   (1 && PJ_HAS_TCP)/* Log identification */#define THIS_FILE	"sipstateless.c"/* Global SIP endpoint */static pjsip_endpoint *sip_endpt;/* What response code to be sent (default is 501/Not Implemented) */static int code = PJSIP_SC_NOT_IMPLEMENTED;/* Callback to handle incoming requests. */static pj_bool_t on_rx_request( pjsip_rx_data *rdata ){    /* Respond (statelessly) all incoming requests (except ACK!)      * with 501 (Not Implemented)     */    if (rdata->msg_info.msg->line.req.method.id != PJSIP_ACK_METHOD) {	pjsip_endpt_respond_stateless( sip_endpt, rdata, 				       code, NULL,				       NULL, NULL);    }    return PJ_TRUE;}/* * main() * */int main(int argc, char *argv[]){    pj_caching_pool cp;    pjsip_module mod_app =    {	NULL, NULL,		    /* prev, next.		*/	{ "mod-app", 7 },	    /* Name.			*/	-1,				    /* Id		*/	PJSIP_MOD_PRIORITY_APPLICATION, /* Priority		*/	NULL,			    /* load()			*/	NULL,			    /* start()			*/	NULL,			    /* stop()			*/	NULL,			    /* unload()			*/	&on_rx_request,		    /* on_rx_request()		*/	NULL,			    /* on_rx_response()		*/	NULL,			    /* on_tx_request.		*/	NULL,			    /* on_tx_response()		*/	NULL,			    /* on_tsx_state()		*/    };    pj_status_t status;        if (argc == 2)	code = atoi(argv[1]);    /* Must init PJLIB first: */    status = pj_init();    PJ_ASSERT_RETURN(status == PJ_SUCCESS, 1);    /* Then init PJLIB-UTIL: */    status = pjlib_util_init();    PJ_ASSERT_RETURN(status == PJ_SUCCESS, 1);    /* Must create a pool factory before we can allocate any memory. */    pj_caching_pool_init(&cp, &pj_pool_factory_default_policy, 0);    /* Create global endpoint: */    {	/* Endpoint MUST be assigned a globally unique name.	 * Ideally we should put hostname or public IP address, but	 * we'll just use an arbitrary name here.	 */	/* Create the endpoint: */	status = pjsip_endpt_create(&cp.factory, "sipstateless", 				    &sip_endpt);	PJ_ASSERT_RETURN(status == PJ_SUCCESS, 1);    }    /*      * Add UDP transport, with hard-coded port      */#ifdef HAS_UDP_TRANSPORT    {	pj_sockaddr_in addr;	addr.sin_family = PJ_AF_INET;	addr.sin_addr.s_addr = 0;	addr.sin_port = pj_htons(5060);	status = pjsip_udp_transport_start( sip_endpt, &addr, NULL, 1, NULL);	if (status != PJ_SUCCESS) {	    PJ_LOG(3,(THIS_FILE, 		      "Error starting UDP transport (port in use?)"));	    return 1;	}    }#endif#if HAS_TCP_TRANSPORT    /*      * Add UDP transport, with hard-coded port      */    {	pj_sockaddr_in addr;	addr.sin_family = PJ_AF_INET;	addr.sin_addr.s_addr = 0;	addr.sin_port = pj_htons(5060);	status = pjsip_tcp_transport_start(sip_endpt, &addr, 1, NULL);	if (status != PJ_SUCCESS) {	    PJ_LOG(3,(THIS_FILE, 		      "Error starting TCP transport (port in use?)"));	    return 1;	}    }#endif    /*     * Register our module to receive incoming requests.     */    status = pjsip_endpt_register_module( sip_endpt, &mod_app);    PJ_ASSERT_RETURN(status == PJ_SUCCESS, 1);    /* Done. Loop forever to handle incoming events. */    PJ_LOG(3,(THIS_FILE, "Press Ctrl-C to quit.."));    for (;;) {	pjsip_endpt_handle_events(sip_endpt, NULL);    }}