Implemented sipecho for testing (fixed #1373)
git-svn-id: https://svn.pjsip.org/repos/pjproject/trunk@3754 74dad513-b988-da41-8d7b-12977e46ad98
diff --git a/pjsip-apps/build/Samples-vc.mak b/pjsip-apps/build/Samples-vc.mak
index 129776f..853b4e0 100644
--- a/pjsip-apps/build/Samples-vc.mak
+++ b/pjsip-apps/build/Samples-vc.mak
@@ -80,6 +80,7 @@
$(BINDIR)\resampleplay.exe \
$(BINDIR)\simpleua.exe \
$(BINDIR)\simple_pjsua.exe \
+ $(BINDIR)\sipecho.exe \
$(BINDIR)\siprtp.exe \
$(BINDIR)\sipstateless.exe \
$(BINDIR)\stateful_proxy.exe \
diff --git a/pjsip-apps/build/Samples.mak b/pjsip-apps/build/Samples.mak
index ee16e52..e4aca92 100644
--- a/pjsip-apps/build/Samples.mak
+++ b/pjsip-apps/build/Samples.mak
@@ -33,6 +33,7 @@
resampleplay \
simpleua \
simple_pjsua \
+ sipecho \
siprtp \
sipstateless \
stateful_proxy \
diff --git a/pjsip-apps/src/samples/sipecho.c b/pjsip-apps/src/samples/sipecho.c
new file mode 100644
index 0000000..012e671
--- /dev/null
+++ b/pjsip-apps/src/samples/sipecho.c
@@ -0,0 +1,637 @@
+/* $Id$ */
+/*
+ * Copyright (C) 2008-2011 Teluu Inc. (http://www.teluu.com)
+ * Copyright (C) 2003-2008 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
+ */
+
+
+/**
+ * sipecho.c
+ *
+ * - Accepts incoming calls and echoes back SDP and any media.
+ * - Specify URI in cmdline argument to make call
+ * - Accepts registration too!
+ */
+
+/* Include all headers. */
+#include <pjsip.h>
+#include <pjmedia/sdp.h>
+#include <pjsip_ua.h>
+#include <pjlib-util.h>
+#include <pjlib.h>
+
+/* For logging purpose. */
+#define THIS_FILE "sipecho.c"
+
+#include "util.h"
+
+
+/* Settings */
+#define AF pj_AF_INET() /* Change to pj_AF_INET6() for IPv6.
+ * PJ_HAS_IPV6 must be enabled and
+ * your system must support IPv6. */
+#define SIP_PORT 5060 /* Listening SIP port */
+#define MAX_CALLS 8
+
+typedef struct call_t
+{
+ pjsip_inv_session *inv;
+} call_t;
+
+static struct app_t
+{
+ pj_caching_pool cp;
+ pj_pool_t *pool;
+
+ pjsip_endpoint *sip_endpt;
+ //pjmedia_endpt *med_endpt;
+
+ call_t call[MAX_CALLS];
+
+ pj_bool_t quit;
+ pj_thread_t *worker_thread;
+
+ pj_bool_t enable_msg_logging;
+} app;
+
+/*
+ * Prototypes:
+ */
+
+static void call_on_media_update(pjsip_inv_session *inv, pj_status_t status);
+static void call_on_state_changed(pjsip_inv_session *inv, pjsip_event *e);
+static void call_on_rx_offer(pjsip_inv_session *inv, const pjmedia_sdp_session *offer);
+static void call_on_forked(pjsip_inv_session *inv, pjsip_event *e);
+static pj_bool_t on_rx_request( pjsip_rx_data *rdata );
+
+
+/* This is a PJSIP module to be registered by application to handle
+ * incoming requests outside any dialogs/transactions. The main purpose
+ * here is to handle incoming INVITE request message, where we will
+ * create a dialog and INVITE session for it.
+ */
+static pjsip_module mod_sipecho =
+{
+ NULL, NULL, /* prev, next. */
+ { "mod-sipecho", 11 }, /* 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() */
+};
+
+/* Notification on incoming messages */
+static pj_bool_t logging_on_rx_msg(pjsip_rx_data *rdata)
+{
+ if (!app.enable_msg_logging)
+ return PJ_FALSE;
+
+ PJ_LOG(3,(THIS_FILE, "RX %d bytes %s from %s %s:%d:\n"
+ "%.*s\n"
+ "--end msg--",
+ rdata->msg_info.len,
+ pjsip_rx_data_get_info(rdata),
+ rdata->tp_info.transport->type_name,
+ rdata->pkt_info.src_name,
+ rdata->pkt_info.src_port,
+ (int)rdata->msg_info.len,
+ rdata->msg_info.msg_buf));
+ return PJ_FALSE;
+}
+
+/* Notification on outgoing messages */
+static pj_status_t logging_on_tx_msg(pjsip_tx_data *tdata)
+{
+ if (!app.enable_msg_logging)
+ return PJ_SUCCESS;
+
+ PJ_LOG(3,(THIS_FILE, "TX %d bytes %s to %s %s:%d:\n"
+ "%.*s\n"
+ "--end msg--",
+ (tdata->buf.cur - tdata->buf.start),
+ pjsip_tx_data_get_info(tdata),
+ tdata->tp_info.transport->type_name,
+ tdata->tp_info.dst_name,
+ tdata->tp_info.dst_port,
+ (int)(tdata->buf.cur - tdata->buf.start),
+ tdata->buf.start));
+ return PJ_SUCCESS;
+}
+
+/* The module instance. */
+static pjsip_module msg_logger =
+{
+ NULL, NULL, /* prev, next. */
+ { "mod-msg-log", 13 }, /* Name. */
+ -1, /* Id */
+ PJSIP_MOD_PRIORITY_TRANSPORT_LAYER-1,/* Priority */
+ NULL, /* load() */
+ NULL, /* start() */
+ NULL, /* stop() */
+ NULL, /* unload() */
+ &logging_on_rx_msg, /* on_rx_request() */
+ &logging_on_rx_msg, /* on_rx_response() */
+ &logging_on_tx_msg, /* on_tx_request. */
+ &logging_on_tx_msg, /* on_tx_response() */
+ NULL, /* on_tsx_state() */
+
+};
+
+static int worker_proc(void *arg)
+{
+ PJ_UNUSED_ARG(arg);
+
+ while (!app.quit) {
+ pj_time_val interval = { 0, 20 };
+ pjsip_endpt_handle_events(app.sip_endpt, &interval);
+ }
+
+ return 0;
+}
+
+static void hangup_all(void)
+{
+ unsigned i;
+ for (i=0; i<MAX_CALLS; ++i) {
+ call_t *call = &app.call[i];
+
+ if (call->inv && call->inv->state <= PJSIP_INV_STATE_CONFIRMED) {
+ pj_status_t status;
+ pjsip_tx_data *tdata;
+
+ status = pjsip_inv_end_session(call->inv, PJSIP_SC_BUSY_HERE, NULL, &tdata);
+ if (status==PJ_SUCCESS && tdata)
+ pjsip_inv_send_msg(call->inv, tdata);
+ }
+ }
+}
+
+static void destroy_stack(void)
+{
+ enum { WAIT_CLEAR = 5000, WAIT_INTERVAL = 500 };
+ unsigned i;
+
+ PJ_LOG(3,(THIS_FILE, "Shutting down.."));
+
+ /* Wait until all clear */
+ hangup_all();
+ for (i=0; i<WAIT_CLEAR/WAIT_INTERVAL; ++i) {
+ unsigned j;
+
+ for (j=0; j<MAX_CALLS; ++j) {
+ call_t *call = &app.call[j];
+ if (call->inv && call->inv->state <= PJSIP_INV_STATE_CONFIRMED)
+ break;
+ }
+
+ if (j==MAX_CALLS)
+ return;
+
+ pj_thread_sleep(WAIT_INTERVAL);
+ }
+
+ app.quit = PJ_TRUE;
+ if (app.worker_thread) {
+ pj_thread_join(app.worker_thread);
+ app.worker_thread = NULL;
+ }
+
+ //if (app.med_endpt)
+ //pjmedia_endpt_destroy(app.med_endpt);
+
+ if (app.sip_endpt)
+ pjsip_endpt_destroy(app.sip_endpt);
+
+ if (app.pool)
+ pj_pool_release(app.pool);
+
+ dump_pool_usage(THIS_FILE, &app.cp);
+ pj_caching_pool_destroy(&app.cp);
+}
+
+#define CHECK_STATUS() do { if (status != PJ_SUCCESS) return status; } while (0)
+
+static pj_status_t init_stack()
+{
+ pj_sockaddr addr;
+ pjsip_inv_callback inv_cb;
+ pj_status_t status;
+
+ pj_log_set_level(5);
+
+ status = pj_init();
+ CHECK_STATUS();
+
+ pj_log_set_level(3);
+
+ status = pjlib_util_init();
+ CHECK_STATUS();
+
+ pj_caching_pool_init(&app.cp, NULL, 0);
+ app.pool = pj_pool_create( &app.cp.factory, "sipecho", 512, 512, 0);
+
+ status = pjsip_endpt_create(&app.cp.factory, NULL, &app.sip_endpt);
+ CHECK_STATUS();
+
+ pj_log_set_level(4);
+ pj_sockaddr_init(AF, &addr, NULL, (pj_uint16_t)SIP_PORT);
+ if (AF == pj_AF_INET()) {
+ status = pjsip_udp_transport_start( app.sip_endpt, &addr.ipv4, NULL,
+ 1, NULL);
+ } else if (AF == pj_AF_INET6()) {
+ status = pjsip_udp_transport_start6(app.sip_endpt, &addr.ipv6, NULL,
+ 1, NULL);
+ } else {
+ status = PJ_EAFNOTSUP;
+ }
+
+ pj_log_set_level(3);
+ CHECK_STATUS();
+
+ status = pjsip_tsx_layer_init_module(app.sip_endpt) ||
+ pjsip_ua_init_module( app.sip_endpt, NULL );
+ CHECK_STATUS();
+
+ pj_bzero(&inv_cb, sizeof(inv_cb));
+ inv_cb.on_state_changed = &call_on_state_changed;
+ inv_cb.on_new_session = &call_on_forked;
+ inv_cb.on_media_update = &call_on_media_update;
+ inv_cb.on_rx_offer = &call_on_rx_offer;
+
+ status = pjsip_inv_usage_init(app.sip_endpt, &inv_cb) ||
+ pjsip_100rel_init_module(app.sip_endpt) ||
+ pjsip_endpt_register_module( app.sip_endpt, &mod_sipecho) ||
+ pjsip_endpt_register_module( app.sip_endpt, &msg_logger) ||
+ //pjmedia_endpt_create(&app.cp.factory,
+ // pjsip_endpt_get_ioqueue(app.sip_endpt),
+ // 0, &app.med_endpt) ||
+ pj_thread_create(app.pool, "sipecho", &worker_proc, NULL, 0, 0,
+ &app.worker_thread);
+ CHECK_STATUS();
+
+ return PJ_SUCCESS;
+}
+
+static void destroy_call(call_t *call)
+{
+ call->inv = NULL;
+}
+
+static pjmedia_sdp_attr * find_remove_sdp_attrs(unsigned *cnt,
+ pjmedia_sdp_attr *attr[],
+ unsigned cnt_attr_to_remove,
+ const char* attr_to_remove[])
+{
+ pjmedia_sdp_attr *found_attr = NULL;
+ int i;
+
+ for (i=0; i<(int)*cnt; ++i) {
+ unsigned j;
+ for (j=0; j<cnt_attr_to_remove; ++j) {
+ if (pj_strcmp2(&attr[i]->name, attr_to_remove[j])==0) {
+ if (!found_attr) found_attr = attr[i];
+ pj_array_erase(attr, sizeof(attr[0]), *cnt, i);
+ --(*cnt);
+ --i;
+ break;
+ }
+ }
+ }
+
+ return found_attr;
+}
+
+static pjmedia_sdp_session *create_answer(int call_num, pj_pool_t *pool,
+ const pjmedia_sdp_session *offer)
+{
+ const char* dir_attrs[] = { "sendrecv", "sendonly", "recvonly", "inactive" };
+ const char *ice_attrs[] = {"ice-pwd", "ice-ufrag", "candidate"};
+ pjmedia_sdp_session *answer = pjmedia_sdp_session_clone(pool, offer);
+ pjmedia_sdp_attr *sess_dir_attr = NULL;
+ unsigned mi;
+
+ PJ_LOG(3,(THIS_FILE, "Call %d: creating answer:", call_num));
+
+ answer->name = pj_str("sipecho");
+ sess_dir_attr = find_remove_sdp_attrs(&answer->attr_count, answer->attr,
+ PJ_ARRAY_SIZE(dir_attrs),
+ dir_attrs);
+
+ for (mi=0; mi<answer->media_count; ++mi) {
+ pjmedia_sdp_media *m = answer->media[mi];
+ pjmedia_sdp_attr *m_dir_attr;
+ pjmedia_sdp_attr *dir_attr;
+ const char *our_dir = NULL;
+ pjmedia_sdp_conn *c;
+
+ /* Match direction */
+ m_dir_attr = find_remove_sdp_attrs(&m->attr_count, m->attr,
+ PJ_ARRAY_SIZE(dir_attrs),
+ dir_attrs);
+ dir_attr = m_dir_attr ? m_dir_attr : sess_dir_attr;
+
+ if (dir_attr) {
+ if (pj_strcmp2(&dir_attr->name, "sendonly")==0)
+ our_dir = "recvonly";
+ else if (pj_strcmp2(&dir_attr->name, "inactive")==0)
+ our_dir = "inactive";
+ else if (pj_strcmp2(&dir_attr->name, "recvonly")==0)
+ our_dir = "inactive";
+
+ if (our_dir) {
+ dir_attr = PJ_POOL_ZALLOC_T(pool, pjmedia_sdp_attr);
+ dir_attr->name = pj_str((char*)our_dir);
+ m->attr[m->attr_count++] = dir_attr;
+ }
+ }
+
+ /* Remove ICE attributes */
+ find_remove_sdp_attrs(&m->attr_count, m->attr, PJ_ARRAY_SIZE(ice_attrs), ice_attrs);
+
+ /* Done */
+ c = m->conn ? m->conn : answer->conn;
+ PJ_LOG(3,(THIS_FILE, " Media %d, %.*s: %s <--> %.*s:%d",
+ mi, (int)m->desc.media.slen, m->desc.media.ptr,
+ (our_dir ? our_dir : "sendrecv"),
+ (int)c->addr.slen, c->addr.ptr, m->desc.port));
+ }
+
+ return answer;
+}
+
+static void call_on_state_changed( pjsip_inv_session *inv,
+ pjsip_event *e)
+{
+ call_t *call = (call_t*)inv->mod_data[mod_sipecho.id];
+ if (!call)
+ return;
+
+ PJ_UNUSED_ARG(e);
+ if (inv->state == PJSIP_INV_STATE_DISCONNECTED) {
+ PJ_LOG(3,(THIS_FILE, "Call %d: DISCONNECTED [reason=%d (%s)]",
+ call - app.call, inv->cause,
+ pjsip_get_status_text(inv->cause)->ptr));
+ destroy_call(call);
+ } else {
+ PJ_LOG(3,(THIS_FILE, "Call %d: state changed to %s",
+ call - app.call, pjsip_inv_state_name(inv->state)));
+ }
+}
+
+static void call_on_rx_offer(pjsip_inv_session *inv, const pjmedia_sdp_session *offer)
+{
+ call_t *call = (call_t*) inv->mod_data[mod_sipecho.id];
+ pjsip_inv_set_sdp_answer(inv, create_answer(call - app.call, inv->pool_prov, offer));
+}
+
+static void call_on_forked(pjsip_inv_session *inv, pjsip_event *e)
+{
+ PJ_UNUSED_ARG(inv);
+ PJ_UNUSED_ARG(e);
+}
+
+static pj_bool_t on_rx_request( pjsip_rx_data *rdata )
+{
+ pj_sockaddr hostaddr;
+ char temp[80], hostip[PJ_INET6_ADDRSTRLEN];
+ pj_str_t local_uri;
+ pjsip_dialog *dlg;
+ pjsip_rdata_sdp_info *sdp_info;
+ pjmedia_sdp_session *answer;
+ pjsip_tx_data *tdata;
+ call_t *call;
+ unsigned i;
+ unsigned options = 0;
+ pj_status_t status;
+
+ PJ_LOG(3,(THIS_FILE, "RX %.*s from %s",
+ (int)rdata->msg_info.msg->line.req.method.name.slen,
+ rdata->msg_info.msg->line.req.method.name.ptr,
+ rdata->pkt_info.src_name));
+
+ if (rdata->msg_info.msg->line.req.method.id == PJSIP_REGISTER_METHOD) {
+ /* Let me be a registrar! */
+ pjsip_hdr hdr_list, *h;
+ pjsip_msg *msg;
+ int expires = -1;
+
+ pj_list_init(&hdr_list);
+ msg = rdata->msg_info.msg;
+ h = (pjsip_hdr*)pjsip_msg_find_hdr(msg, PJSIP_H_EXPIRES, NULL);
+ if (h) {
+ expires = ((pjsip_expires_hdr*)h)->ivalue;
+ pj_list_push_back(&hdr_list, pjsip_hdr_clone(rdata->tp_info.pool, h));
+ PJ_LOG(3,(THIS_FILE, " Expires=%d", expires));
+ }
+ if (expires != 0) {
+ h = (pjsip_hdr*)pjsip_msg_find_hdr(msg, PJSIP_H_CONTACT, NULL);
+ if (h)
+ pj_list_push_back(&hdr_list, pjsip_hdr_clone(rdata->tp_info.pool, h));
+ }
+
+ pjsip_endpt_respond(app.sip_endpt, &mod_sipecho, rdata, 200, NULL,
+ &hdr_list, NULL, NULL);
+ return PJ_TRUE;
+ }
+
+ if (rdata->msg_info.msg->line.req.method.id != PJSIP_INVITE_METHOD) {
+ if (rdata->msg_info.msg->line.req.method.id != PJSIP_ACK_METHOD) {
+ pj_str_t reason = pj_str("Go away");
+ pjsip_endpt_respond_stateless( app.sip_endpt, rdata,
+ 400, &reason,
+ NULL, NULL);
+ }
+ return PJ_TRUE;
+ }
+
+ sdp_info = pjsip_rdata_get_sdp_info(rdata);
+ if (!sdp_info || !sdp_info->sdp) {
+ pj_str_t reason = pj_str("Require valid offer");
+ pjsip_endpt_respond_stateless( app.sip_endpt, rdata,
+ 400, &reason,
+ NULL, NULL);
+ }
+
+ for (i=0; i<MAX_CALLS; ++i) {
+ if (app.call[i].inv == NULL) {
+ call = &app.call[i];
+ break;
+ }
+ }
+
+ if (i==MAX_CALLS) {
+ pj_str_t reason = pj_str("We're full");
+ pjsip_endpt_respond_stateless( app.sip_endpt, rdata,
+ PJSIP_SC_BUSY_HERE, &reason,
+ NULL, NULL);
+ return PJ_TRUE;
+ }
+
+ /* Generate Contact URI */
+ if (pj_gethostip(AF, &hostaddr) != PJ_SUCCESS) {
+ app_perror(THIS_FILE, "Unable to retrieve local host IP", status);
+ return PJ_TRUE;
+ }
+ pj_sockaddr_print(&hostaddr, hostip, sizeof(hostip), 2);
+ pj_ansi_sprintf(temp, "<sip:sipecho@%s:%d>", hostip, SIP_PORT);
+ local_uri = pj_str(temp);
+
+ status = pjsip_dlg_create_uas( pjsip_ua_instance(), rdata,
+ &local_uri, &dlg);
+
+ if (status == PJ_SUCCESS)
+ answer = create_answer(call-app.call, dlg->pool, sdp_info->sdp);
+ if (status == PJ_SUCCESS)
+ status = pjsip_inv_create_uas( dlg, rdata, answer, 0, &call->inv);
+ if (status == PJ_SUCCESS)
+ status = pjsip_inv_initial_answer(call->inv, rdata, 100,
+ NULL, NULL, &tdata);
+ if (status == PJ_SUCCESS)
+ status = pjsip_inv_send_msg(call->inv, tdata);
+
+ if (status == PJ_SUCCESS)
+ status = pjsip_inv_answer(call->inv, 180, NULL,
+ NULL, &tdata);
+ if (status == PJ_SUCCESS)
+ status = pjsip_inv_send_msg(call->inv, tdata);
+
+ if (status == PJ_SUCCESS)
+ status = pjsip_inv_answer(call->inv, 200, NULL,
+ NULL, &tdata);
+ if (status == PJ_SUCCESS)
+ status = pjsip_inv_send_msg(call->inv, tdata);
+
+ if (status != PJ_SUCCESS) {
+ pjsip_endpt_respond_stateless( app.sip_endpt, rdata,
+ 500, NULL, NULL, NULL);
+ destroy_call(call);
+ } else {
+ call->inv->mod_data[mod_sipecho.id] = call;
+ }
+
+ return PJ_TRUE;
+}
+
+static void call_on_media_update( pjsip_inv_session *inv,
+ pj_status_t status)
+{
+ PJ_UNUSED_ARG(inv);
+ PJ_UNUSED_ARG(status);
+}
+
+
+/* main()
+ *
+ * If called with argument, treat argument as SIP URL to be called.
+ * Otherwise wait for incoming calls.
+ */
+int main(int argc, char *argv[])
+{
+ if (init_stack())
+ goto on_error;
+
+ /* If URL is specified, then make call immediately. */
+ if (argc > 1) {
+ pj_sockaddr hostaddr;
+ char hostip[PJ_INET6_ADDRSTRLEN+2];
+ char temp[80];
+ call_t *call;
+ pj_str_t dst_uri = pj_str(argv[1]);
+ pj_str_t local_uri;
+ pjsip_dialog *dlg;
+ pjmedia_sdp_session *local_sdp;
+ pj_status_t status;
+ pjsip_tx_data *tdata;
+
+ if (pj_gethostip(AF, &hostaddr) != PJ_SUCCESS) {
+ PJ_LOG(1,(THIS_FILE, "Unable to retrieve local host IP"));
+ goto on_error;
+ }
+ pj_sockaddr_print(&hostaddr, hostip, sizeof(hostip), 2);
+
+ pj_ansi_sprintf(temp, "<sip:sipecho@%s:%d>",
+ hostip, SIP_PORT);
+ local_uri = pj_str(temp);
+
+ call = &app.call[0];
+
+ status = pjsip_dlg_create_uac( pjsip_ua_instance(),
+ &local_uri, /* local URI */
+ &local_uri, /* local Contact */
+ &dst_uri, /* remote URI */
+ &dst_uri, /* remote target */
+ &dlg); /* dialog */
+ if (status != PJ_SUCCESS) {
+ app_perror(THIS_FILE, "Unable to create UAC dialog", status);
+ return 1;
+ }
+
+ status = pjsip_inv_create_uac( dlg, NULL, 0, &call->inv);
+ if (status != PJ_SUCCESS) goto on_error;
+
+ call->inv->mod_data[mod_sipecho.id] = call;
+
+ status = pjsip_inv_invite(call->inv, &tdata);
+ if (status != PJ_SUCCESS) goto on_error;
+
+ status = pjsip_inv_send_msg(call->inv, tdata);
+ if (status != PJ_SUCCESS) goto on_error;
+
+ puts("Press ENTER to quit...");
+ } else {
+ puts("Ready for incoming calls. Press ENTER to quit...");
+ }
+
+ for (;;) {
+ char s[10];
+
+ printf("\nMenu:\n"
+ " h Hangup all calls\n"
+ " l %s message logging\n"
+ " q Quit\n",
+ (app.enable_msg_logging? "Disable" : "Enable"));
+
+ fgets(s, sizeof(s), stdin) != NULL;
+ if (s[0]=='q')
+ break;
+ switch (s[0]) {
+ case 'l':
+ app.enable_msg_logging = !app.enable_msg_logging;
+ break;
+ case 'h':
+ hangup_all();
+ break;
+ }
+ }
+
+ destroy_stack();
+
+ puts("Bye bye..");
+ return 0;
+
+on_error:
+ puts("An error has occurred. run a debugger..");
+ return 1;
+}
+