Basic call

This program is a very simple usage example of liblinphone. It just takes a sip-uri as first argument and attempts to call it

/*
linphone
Copyright (C) 2010  Belledonne Communications SARL 
 (simon.morlat@linphone.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., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
*/

/**
 * @defgroup basic_call_tutorials Basic call
 * @ingroup tutorials
 This program is a _very_ simple usage example of liblinphone.
 It just takes a sip-uri as first argument and attempts to call it

 @include helloworld.c
 */

#include "linphone/core.h"

#include <signal.h>

static bool_t running=TRUE;

static void stop(int signum){
	running=FALSE;
}

/*
 * Call state notification callback
 */
static void call_state_changed(LinphoneCore *lc, LinphoneCall *call, LinphoneCallState cstate, const char *msg){
	switch(cstate){
		case LinphoneCallOutgoingRinging:
			printf("It is now ringing remotely !\n");
		break;
		case LinphoneCallOutgoingEarlyMedia:
			printf("Receiving some early media\n");
		break;
		case LinphoneCallConnected:
			printf("We are connected !\n");
		break;
		case LinphoneCallStreamsRunning:
			printf("Media streams established !\n");
		break;
		case LinphoneCallEnd:
			printf("Call is terminated.\n");
		break;
		case LinphoneCallError:
			printf("Call failure !");
		break;
		default:
			printf("Unhandled notification %i\n",cstate);
	}
}

int main(int argc, char *argv[]){
	LinphoneCoreVTable vtable={0};
	LinphoneCore *lc;
	LinphoneCall *call=NULL;
	const char *dest=NULL;

	/* take the destination sip uri from the command line arguments */
	if (argc>1){
		dest=argv[1];
	}

	signal(SIGINT,stop);

#ifdef DEBUG_LOGS
	linphone_core_enable_logs(NULL); /*enable liblinphone logs.*/
#endif
	/* 
	 Fill the LinphoneCoreVTable with application callbacks.
	 All are optional. Here we only use the call_state_changed callbacks
	 in order to get notifications about the progress of the call.
	 */
	vtable.call_state_changed=call_state_changed;

	/*
	 Instanciate a LinphoneCore object given the LinphoneCoreVTable
	*/
	lc=linphone_core_new(&vtable,NULL,NULL,NULL);

	if (dest){
		/*
		 Place an outgoing call
		*/
		call=linphone_core_invite(lc,dest);
		if (call==NULL){
			printf("Could not place call to %s\n",dest);
			goto end;
		}else printf("Call to %s is in progress...",dest);
		linphone_call_ref(call);
	}
	/* main loop for receiving notifications and doing background linphonecore work: */
	while(running){
		linphone_core_iterate(lc);
		ms_usleep(50000);
	}
	if (call && linphone_call_get_state(call)!=LinphoneCallEnd){
		/* terminate the call */
		printf("Terminating the call...\n");
		linphone_core_terminate_call(lc,call);
		/*at this stage we don't need the call object */
		linphone_call_unref(call);
	}

end:
	printf("Shutting down...\n");
	linphone_core_destroy(lc);
	printf("Exited\n");
	return 0;
}

Basic registration

This program is a very simple usage example of liblinphone, desmonstrating how to initiate a SIP registration from a sip uri identity passed from the command line. First argument must be like sip:jehan@sip.linphone.org , second must be password . Registration is cleared on SIGINT.

Example: registration sip:jehan@sip.linphone.org secret

/*
linphone
Copyright (C) 2010  Belledonne Communications SARL

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., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
*/

/**
 * @defgroup registration_tutorials Basic registration
 * @ingroup tutorials
 *This program is a _very_ simple usage example of liblinphone.
 *Desmonstrating how to  initiate a SIP registration from a sip uri identity passed from the command line.
 *first argument must be like sip:jehan@sip.linphone.org , second must be password .
 *<br>
 *ex registration sip:jehan@sip.linphone.org secret
 *<br>Registration is cleared on SIGINT
 *<br>
 *@include registration.c

 *
 */

#include "linphone/core.h"

#include <signal.h>

static bool_t running=TRUE;

static void stop(int signum){
	running=FALSE;
}

/**
 * Registration state notification callback
 */
static void registration_state_changed(struct _LinphoneCore *lc, LinphoneProxyConfig *cfg, LinphoneRegistrationState cstate, const char *message){
		printf("New registration state %s for user id [%s] at proxy [%s]\n"
				,linphone_registration_state_to_string(cstate)
				,linphone_proxy_config_get_identity(cfg)
				,linphone_proxy_config_get_addr(cfg));
}

LinphoneCore *lc;
int main(int argc, char *argv[]){
	LinphoneCoreVTable vtable={0};
	LinphoneProxyConfig* proxy_cfg;
	LinphoneAddress *from;
	LinphoneAuthInfo *info;

	char* identity=NULL;
	char* password=NULL;
	const char* server_addr;

	/* takes   sip uri  identity from the command line arguments */
	if (argc>1){
		identity=argv[1];
	}

	/* takes   password from the command line arguments */
	if (argc>2){
		password=argv[2];
	}

	signal(SIGINT,stop);

#ifdef DEBUG_LOGS
	linphone_core_enable_logs(NULL); /*enable liblinphone logs.*/
#endif
	/*
	 Fill the LinphoneCoreVTable with application callbacks.
	 All are optional. Here we only use the registration_state_changed callbacks
	 in order to get notifications about the progress of the registration.
	 */
	vtable.registration_state_changed=registration_state_changed;

	/*
	 Instanciate a LinphoneCore object given the LinphoneCoreVTable
	*/
	lc=linphone_core_new(&vtable,NULL,NULL,NULL);

	/*create proxy config*/
	proxy_cfg = linphone_proxy_config_new();
	/*parse identity*/
	from = linphone_address_new(identity);
	if (from==NULL){
		printf("%s not a valid sip uri, must be like sip:toto@sip.linphone.org \n",identity);
		goto end;
	}
	if (password!=NULL){
		info=linphone_auth_info_new(linphone_address_get_username(from),NULL,password,NULL,NULL,NULL); /*create authentication structure from identity*/
		linphone_core_add_auth_info(lc,info); /*add authentication info to LinphoneCore*/
	}

	// configure proxy entries
	linphone_proxy_config_set_identity(proxy_cfg,identity); /*set identity with user name and domain*/
	server_addr = linphone_address_get_domain(from); /*extract domain address from identity*/
	linphone_proxy_config_set_server_addr(proxy_cfg,server_addr); /* we assume domain = proxy server address*/
	linphone_proxy_config_enable_register(proxy_cfg,TRUE); /*activate registration for this proxy config*/
	linphone_address_unref(from); /*release resource*/

	linphone_core_add_proxy_config(lc,proxy_cfg); /*add proxy config to linphone core*/
	linphone_core_set_default_proxy(lc,proxy_cfg); /*set to default proxy*/


	/* main loop for receiving notifications and doing background linphonecore work: */
	while(running){
		linphone_core_iterate(lc); /* first iterate initiates registration */
		ms_usleep(50000);
	}

	proxy_cfg = linphone_core_get_default_proxy_config(lc); /* get default proxy config*/
	linphone_proxy_config_edit(proxy_cfg); /*start editing proxy configuration*/
	linphone_proxy_config_enable_register(proxy_cfg,FALSE); /*de-activate registration for this proxy config*/
	linphone_proxy_config_done(proxy_cfg); /*initiate REGISTER with expire = 0*/

	while(linphone_proxy_config_get_state(proxy_cfg) !=  LinphoneRegistrationCleared){
		linphone_core_iterate(lc); /*to make sure we receive call backs before shutting down*/
		ms_usleep(50000);
	}

end:
	printf("Shutting down...\n");
	linphone_core_destroy(lc);
	printf("Exited\n");
	return 0;
}

Generic subscribe/notify example

This program is a very simple usage example of liblinphone. It demonstrates how to listen to a SIP subscription. It then sends notify requests back periodically. First argument must be like sip:jehan@sip.linphone.org , second must be password. Registration is cleared on SIGINT.

Example: registration sip:jehan@sip.linphone.org secret

/*
linphone
Copyright (C) 2010  Belledonne Communications SARL

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., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
*/

/**
 * @defgroup registration_tutorials Basic registration
 * @ingroup tutorials
 *This program is a _very_ simple usage example of liblinphone.
 *Desmonstrating how to  initiate a SIP registration from a sip uri identity passed from the command line.
 *first argument must be like sip:jehan@sip.linphone.org , second must be password .
 *<br>
 *ex registration sip:jehan@sip.linphone.org secret
 *<br>Registration is cleared on SIGINT
 *<br>
 *@include registration.c

 *
 */

#include "linphone/core.h"

#include <signal.h>

static bool_t running=TRUE;

static void stop(int signum){
	running=FALSE;
}

/**
 * Registration state notification callback
 */
static void registration_state_changed(struct _LinphoneCore *lc, LinphoneProxyConfig *cfg, LinphoneRegistrationState cstate, const char *message){
		printf("New registration state %s for user id [%s] at proxy [%s]\n"
				,linphone_registration_state_to_string(cstate)
				,linphone_proxy_config_get_identity(cfg)
				,linphone_proxy_config_get_addr(cfg));
}

LinphoneCore *lc;
int main(int argc, char *argv[]){
	LinphoneCoreVTable vtable={0};
	LinphoneProxyConfig* proxy_cfg;
	LinphoneAddress *from;
	LinphoneAuthInfo *info;

	char* identity=NULL;
	char* password=NULL;
	const char* server_addr;

	/* takes   sip uri  identity from the command line arguments */
	if (argc>1){
		identity=argv[1];
	}

	/* takes   password from the command line arguments */
	if (argc>2){
		password=argv[2];
	}

	signal(SIGINT,stop);

#ifdef DEBUG_LOGS
	linphone_core_enable_logs(NULL); /*enable liblinphone logs.*/
#endif
	/*
	 Fill the LinphoneCoreVTable with application callbacks.
	 All are optional. Here we only use the registration_state_changed callbacks
	 in order to get notifications about the progress of the registration.
	 */
	vtable.registration_state_changed=registration_state_changed;

	/*
	 Instanciate a LinphoneCore object given the LinphoneCoreVTable
	*/
	lc=linphone_core_new(&vtable,NULL,NULL,NULL);

	/*create proxy config*/
	proxy_cfg = linphone_proxy_config_new();
	/*parse identity*/
	from = linphone_address_new(identity);
	if (from==NULL){
		printf("%s not a valid sip uri, must be like sip:toto@sip.linphone.org \n",identity);
		goto end;
	}
	if (password!=NULL){
		info=linphone_auth_info_new(linphone_address_get_username(from),NULL,password,NULL,NULL,NULL); /*create authentication structure from identity*/
		linphone_core_add_auth_info(lc,info); /*add authentication info to LinphoneCore*/
	}

	// configure proxy entries
	linphone_proxy_config_set_identity(proxy_cfg,identity); /*set identity with user name and domain*/
	server_addr = linphone_address_get_domain(from); /*extract domain address from identity*/
	linphone_proxy_config_set_server_addr(proxy_cfg,server_addr); /* we assume domain = proxy server address*/
	linphone_proxy_config_enable_register(proxy_cfg,TRUE); /*activate registration for this proxy config*/
	linphone_address_unref(from); /*release resource*/

	linphone_core_add_proxy_config(lc,proxy_cfg); /*add proxy config to linphone core*/
	linphone_core_set_default_proxy(lc,proxy_cfg); /*set to default proxy*/


	/* main loop for receiving notifications and doing background linphonecore work: */
	while(running){
		linphone_core_iterate(lc); /* first iterate initiates registration */
		ms_usleep(50000);
	}

	proxy_cfg = linphone_core_get_default_proxy_config(lc); /* get default proxy config*/
	linphone_proxy_config_edit(proxy_cfg); /*start editing proxy configuration*/
	linphone_proxy_config_enable_register(proxy_cfg,FALSE); /*de-activate registration for this proxy config*/
	linphone_proxy_config_done(proxy_cfg); /*initiate REGISTER with expire = 0*/

	while(linphone_proxy_config_get_state(proxy_cfg) !=  LinphoneRegistrationCleared){
		linphone_core_iterate(lc); /*to make sure we receive call backs before shutting down*/
		ms_usleep(50000);
	}

end:
	printf("Shutting down...\n");
	linphone_core_destroy(lc);
	printf("Exited\n");
	return 0;
}

Basic buddy status notification

This program is a very simple usage example of liblinphone, demonstrating how to initiate SIP subscriptions and receive notifications from a sip uri identity passed from the command line. Argument must be like sip:jehan@sip.linphone.org . Subscription is cleared on SIGINT signal.

Example: budy_list sip:jehan@sip.linphone.org

/*
buddy_status
Copyright (C) 2010  Belledonne Communications SARL

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., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
*/

/**
 * @defgroup buddy_tutorials Basic buddy status notification
 * @ingroup tutorials
 *This program is a _very_ simple usage example of liblinphone,
 *demonstrating how to initiate  SIP subscriptions and receive notifications from a sip uri identity passed from the command line.
 *<br>Argument must be like sip:jehan@sip.linphone.org .
 *<br>
 *ex budy_list sip:jehan@sip.linphone.org
 *<br>Subscription is cleared on SIGINT
 *<br>
 *@include buddy_status.c

 *
 */

#include "linphone/core.h"

#include <signal.h>

static bool_t running=TRUE;

static void stop(int signum){
	running=FALSE;
}

/**
 * presence state change notification callback
 */
static void notify_presence_recv_updated (LinphoneCore *lc,  LinphoneFriend *friend) {
	const LinphoneAddress* friend_address = linphone_friend_get_address(friend);
	if (friend_address != NULL) {
		const LinphonePresenceModel* model = linphone_friend_get_presence_model(friend);
		LinphonePresenceActivity *activity = linphone_presence_model_get_activity(model);
		char *activity_str = linphone_presence_activity_to_string(activity);
		char *str = linphone_address_as_string (friend_address);
		printf("New state state [%s] for user id [%s] \n"
					,activity_str
					,str);
		ms_free(str);
	}
}
static void new_subscription_requested (LinphoneCore *lc,  LinphoneFriend *friend, const char* url) {
	const LinphoneAddress* friend_address = linphone_friend_get_address(friend);

	if (friend_address != NULL) {
		char *str = linphone_address_as_string (friend_address);
		printf(" [%s] wants to see your status, accepting\n", str);
		ms_free(str);
	}
	linphone_friend_edit(friend); /* start editing friend */
	linphone_friend_set_inc_subscribe_policy(friend,LinphoneSPAccept); /* Accept incoming subscription request for this friend*/
	linphone_friend_done(friend); /*commit change*/
	linphone_core_add_friend(lc,friend); /* add this new friend to the buddy list*/

}
/**
 * Registration state notification callback
 */
static void registration_state_changed(struct _LinphoneCore *lc, LinphoneProxyConfig *cfg, LinphoneRegistrationState cstate, const char *message){
		printf("New registration state %s for user id [%s] at proxy [%s]"
				,linphone_registration_state_to_string(cstate)
				,linphone_proxy_config_get_identity(cfg)
				,linphone_proxy_config_get_addr(cfg));
}

LinphoneCore *lc;
int main(int argc, char *argv[]){
	LinphoneCoreVTable vtable={0};

	char* dest_friend=NULL;
	char* identity=NULL;
	char* password=NULL;

	LinphoneFriend* my_friend=NULL;
	LinphonePresenceModel *model;

	/* takes   sip uri  identity from the command line arguments */
	if (argc>1){
		dest_friend=argv[1];
	}
	/* takes   sip uri  identity from the command line arguments */
	if (argc>2){
		identity=argv[2];
	}
	/* takes   password from the command line arguments */
	if (argc>3){
		password=argv[3];
	}
	signal(SIGINT,stop);
//#define DEBUG_LOGS
#ifdef DEBUG_LOGS
	linphone_core_enable_logs(NULL); /*enable liblinphone logs.*/
#endif
	/*
	 Fill the LinphoneCoreVTable with application callbacks.
	 All are optional. Here we only use the both notify_presence_received and new_subscription_requested callbacks
	 in order to get notifications about friend status.
	 */
	vtable.notify_presence_received=notify_presence_recv_updated;
	vtable.new_subscription_requested=new_subscription_requested;
	vtable.registration_state_changed=registration_state_changed; /*just in case sip proxy is used*/

	/*
	 Instantiate a LinphoneCore object given the LinphoneCoreVTable
	*/
	lc=linphone_core_new(&vtable,NULL,NULL,NULL);
	/*sip proxy might be requested*/
	if (identity != NULL)  {
		/*create proxy config*/
		LinphoneProxyConfig* proxy_cfg = linphone_proxy_config_new();
		/*parse identity*/
		LinphoneAddress *from = linphone_address_new(identity);
		LinphoneAuthInfo *info;
		if (from==NULL){
			printf("%s not a valid sip uri, must be like sip:toto@sip.linphone.org \n",identity);
			goto end;
		}
		if (password!=NULL){
			info=linphone_auth_info_new(linphone_address_get_username(from),NULL,password,NULL,NULL,NULL); /*create authentication structure from identity*/
			linphone_core_add_auth_info(lc,info); /*add authentication info to LinphoneCore*/
		}

		// configure proxy entries
		linphone_proxy_config_set_identity(proxy_cfg,identity); /*set identity with user name and domain*/
		linphone_proxy_config_set_server_addr(proxy_cfg,linphone_address_get_domain(from)); /* we assume domain = proxy server address*/
		linphone_proxy_config_enable_register(proxy_cfg,TRUE); /*activate registration for this proxy config*/
		linphone_proxy_config_enable_publish(proxy_cfg,TRUE); /* enable presence satus publication for this proxy*/
		linphone_address_unref(from); /*release resource*/

		linphone_core_add_proxy_config(lc,proxy_cfg); /*add proxy config to linphone core*/
		linphone_core_set_default_proxy(lc,proxy_cfg); /*set to default proxy*/


		/* Loop until registration status is available */
		do {
			linphone_core_iterate(lc); /* first iterate initiates registration */
			ms_usleep(100000);
		}
		while(	running && linphone_proxy_config_get_state(proxy_cfg) == LinphoneRegistrationProgress);

	}

	if (dest_friend) {
		my_friend = linphone_core_create_friend_with_address(lc, dest_friend); /*creates friend object from dest*/
		if (my_friend == NULL) {
			printf("bad destination uri for friend [%s]\n",dest_friend);
			goto end;
		}

		linphone_friend_enable_subscribes(my_friend,TRUE); /*configure this friend to emit SUBSCRIBE message after being added to LinphoneCore*/
		linphone_friend_set_inc_subscribe_policy(my_friend,LinphoneSPAccept); /* Accept incoming subscription request for this friend*/
		linphone_core_add_friend(lc,my_friend); /* add my friend to the buddy list, initiate SUBSCRIBE message*/

	}

	/*set my status to online*/
	model = linphone_presence_model_new();
	linphone_presence_model_set_basic_status(model, LinphonePresenceBasicStatusOpen);
	linphone_core_set_presence_model(lc, model);
	linphone_presence_model_unref(model);

	/* main loop for receiving notifications and doing background linphone core work: */
	while(running){
		linphone_core_iterate(lc); /* first iterate initiates subscription */
		ms_usleep(50000);
	}

	/* change my presence status to offline*/
	model = linphone_presence_model_new();
	linphone_presence_model_set_basic_status(model, LinphonePresenceBasicStatusClosed);
	linphone_core_set_presence_model(lc, model);
	linphone_presence_model_unref(model);
	linphone_core_iterate(lc); /* just to make sure new status is initiate message is issued */

	linphone_friend_edit(my_friend); /* start editing friend */
	linphone_friend_enable_subscribes(my_friend,FALSE); /*disable subscription for this friend*/
	linphone_friend_done(my_friend); /*commit changes triggering an UNSUBSCRIBE message*/

	linphone_core_iterate(lc); /* just to make sure unsubscribe message is issued */

end:
	printf("Shutting down...\n");
	linphone_core_destroy(lc);
	printf("Exited\n");
	return 0;
}

Chat room and messaging

This program is a very simple usage example of liblinphone, desmonstrating how to send/receive SIP MESSAGE from a sip uri identity passed from the command line. Argument must be like sip:jehan@sip.linphone.org .

Example: chatroom sip:jehan@sip.linphone.org

/*
linphone
Copyright (C) 2010  Belledonne Communications SARL

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., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
*/

/**
 * @defgroup chatroom_tuto Chat room and messaging
 * @ingroup tutorials
 *This program is a _very_ simple usage example of liblinphone,
 *desmonstrating how to send/receive  SIP MESSAGE from a sip uri identity passed from the command line.
 *<br>Argument must be like sip:jehan@sip.linphone.org .
 *<br>
 *ex chatroom sip:jehan@sip.linphone.org
 *<br>
 *@include chatroom.c

 *
 */

#include "linphone/core.h"

#include <signal.h>

static bool_t running=TRUE;

static void stop(int signum){
	running=FALSE;
}
void text_received(LinphoneCore *lc, LinphoneChatRoom *room, const LinphoneAddress *from, const char *message) {
	printf(" Message [%s] received from [%s] \n",message,linphone_address_as_string (from));
}


LinphoneCore *lc;
int main(int argc, char *argv[]){
	LinphoneCoreVTable vtable={0};

	char* dest_friend=NULL;
	LinphoneChatRoom* chat_room;

	/* takes   sip uri  identity from the command line arguments */
	if (argc>1){
		dest_friend=argv[1];
	}

	signal(SIGINT,stop);
//#define DEBUG_LOGS
#ifdef DEBUG_LOGS
	linphone_core_enable_logs(NULL); /*enable liblinphone logs.*/
#endif
	/*
	 Fill the LinphoneCoreVTable with application callbacks.
	 All are optional. Here we only use the text_received callback
	 in order to get notifications about incoming message.
	 */
	vtable.text_received=text_received;

	/*
	 Instantiate a LinphoneCore object given the LinphoneCoreVTable
	*/
	lc=linphone_core_new(&vtable,NULL,NULL,NULL);


	/*Next step is to create a chat root*/
	chat_room = linphone_core_get_chat_room_from_uri(lc,dest_friend);

	linphone_chat_room_send_message(chat_room,"Hello world"); /*sending message*/

	/* main loop for receiving incoming messages and doing background linphone core work: */
	while(running){
		linphone_core_iterate(lc);
		ms_usleep(50000);
	}

	printf("Shutting down...\n");
	linphone_core_destroy(lc);
	printf("Exited\n");
	return 0;
}

File transfer

/*
linphone
Copyright (C) 2010  Belledonne Communications SARL

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., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
*/

/**
 * @defgroup chatroom_tuto Chat room and messaging
 * @ingroup tutorials
 *This program is a _very_ simple usage example of liblinphone,
 *desmonstrating how to send/receive  SIP MESSAGE from a sip uri identity passed from the command line.
 *<br>Argument must be like sip:jehan@sip.linphone.org .
 *<br>
 *ex chatroom sip:jehan@sip.linphone.org
 *<br>
 *@include chatroom.c

 *
 */

#include "linphone/core.h"

#include <signal.h>

static bool_t running=TRUE;

static void stop(int signum){
	running=FALSE;
}
/**
 * function invoked to report file transfer progress.
 * */
static void file_transfer_progress_indication(LinphoneChatMessage *message, const LinphoneContent* content, size_t offset, size_t total) {
	const LinphoneAddress* from_address = linphone_chat_message_get_from_address(message);
	const LinphoneAddress* to_address = linphone_chat_message_get_to_address(message);
	char *address = linphone_chat_message_is_outgoing(message)?linphone_address_as_string(to_address):linphone_address_as_string(from_address);
	printf(" File transfer  [%d%%] %s of type [%s/%s] %s [%s] \n", (int)((offset *100)/total)
																	,(linphone_chat_message_is_outgoing(message)?"sent":"received")
																	, linphone_content_get_type(content)
																	, linphone_content_get_subtype(content)
																	,(linphone_chat_message_is_outgoing(message)?"to":"from")
																	, address);
	free(address);
}
/**
 * function invoked when a file transfer is received.
 **/
static void file_transfer_received(LinphoneChatMessage *message, const LinphoneContent* content, const LinphoneBuffer *buffer){
	FILE* file=NULL;
	if (!linphone_chat_message_get_user_data(message)) {
		/*first chunk, creating file*/
		file = fopen("receive_file.dump","wb");
		linphone_chat_message_set_user_data(message,(void*)file); /*store fd for next chunks*/
	}

	file = (FILE*)linphone_chat_message_get_user_data(message);
	if (linphone_buffer_is_empty(buffer)) {
		printf("File transfert completed\n");
		linphone_chat_message_unref(message);
		fclose(file);
		running=FALSE;
	} else { /* store content on a file*/
		if (fwrite(linphone_buffer_get_content(buffer),linphone_buffer_get_size(buffer),1,file)==0){
			ms_warning("file_transfer_received() write failed: %s",strerror(errno));
		}
	}
}

char big_file [128000];

/*
 * function called when the file transfer is initiated. file content should be feed into object LinphoneContent
 * */
static LinphoneBuffer * file_transfer_send(LinphoneChatMessage *message, const LinphoneContent* content, size_t offset, size_t size){
	size_t size_to_send = MIN(size, sizeof(big_file) - offset);
	if (size == 0) return linphone_buffer_new(); /*end of file*/
	return linphone_buffer_new_from_data((uint8_t *)big_file + offset, size_to_send);
}

/*
 * Call back to get delivery status of a message
 * */
static void linphone_file_transfer_state_changed(LinphoneChatMessage* msg,LinphoneChatMessageState state) {
	const LinphoneAddress* to_address = linphone_chat_message_get_to_address(msg);
	char *to = linphone_address_as_string(to_address);
	printf("File transfer sent to [%s] delivery status is [%s] \n"	, to
																	, linphone_chat_message_state_to_string(state));
	free(to);
}

/*
 * Call back called when a message is received
 */
static void message_received(LinphoneCore *lc, LinphoneChatRoom *cr, LinphoneChatMessage *msg) {
	const LinphoneContent *file_transfer_info = linphone_chat_message_get_file_transfer_information(msg);
	printf ("Do you really want to download %s (size %ld)?[Y/n]\nOk, let's go\n", linphone_content_get_name(file_transfer_info), (long int)linphone_content_get_size(file_transfer_info));

	linphone_chat_message_download_file(msg);

}

LinphoneCore *lc;
int main(int argc, char *argv[]){
	LinphoneCoreVTable vtable={0};

	const char* dest_friend=NULL;
	size_t i;
	const char* big_file_content="big file";
	LinphoneChatRoom* chat_room;
	LinphoneContent* content;
	LinphoneChatMessage* chat_message;
	LinphoneChatMessageCbs *cbs;

	/*seting dummy file content to something*/
	for (i=0;i<sizeof(big_file);i+=strlen(big_file_content))
		memcpy(big_file+i, big_file_content, strlen(big_file_content));

	big_file[0]=*"S";
	big_file[sizeof(big_file)-1]=*"E";

	signal(SIGINT,stop);
//#define DEBUG_LOGS
#ifdef DEBUG_LOGS
	linphone_core_enable_logs(NULL); /*enable liblinphone logs.*/
#endif
	vtable.message_received=message_received;


	/*
	 Instantiate a LinphoneCore object given the LinphoneCoreVTable
	*/
	lc=linphone_core_new(&vtable,NULL,NULL,NULL);
	dest_friend = linphone_core_get_primary_contact(lc);
	printf("Send message to me : %s\n", dest_friend);

	/**
	 * Globally configure an http file transfer server.
	 */
	//linphone_core_set_file_transfer_server(lc,"http://npasc.al/lft.php");
	linphone_core_set_file_transfer_server(lc,"https://www.linphone.org:444/lft.php");


	/*Next step is to create a chat room*/
	chat_room = linphone_core_get_chat_room_from_uri(lc,dest_friend);

	content = linphone_core_create_content(lc);
	linphone_content_set_type(content,"text");
	linphone_content_set_subtype(content,"plain");
	linphone_content_set_size(content,sizeof(big_file)); /*total size to be transfered*/
	linphone_content_set_name(content,"bigfile.txt");

	/*now create a chat message with custom content*/
	chat_message = linphone_chat_room_create_file_transfer_message(chat_room,content);
	if (chat_message == NULL) {
		printf("returned message is null\n");
	}

	/**
	 * Fill the application callbacks. The file_transfer_received callback is used in order to get notifications
	 * about incoming file reception, file_transfer_send to feed file to be transfered and
	 * file_transfer_progress_indication to print progress.
	 */
	cbs = linphone_chat_message_get_callbacks(chat_message);
	linphone_chat_message_cbs_set_file_transfer_recv(cbs, file_transfer_received);
	linphone_chat_message_cbs_set_file_transfer_send(cbs, file_transfer_send);
	linphone_chat_message_cbs_set_file_transfer_progress_indication(cbs, file_transfer_progress_indication);
	linphone_chat_message_cbs_set_msg_state_changed(cbs, linphone_file_transfer_state_changed);

	/*initiating file transfer*/
	linphone_chat_room_send_chat_message(chat_room, chat_message);

	/* main loop for receiving incoming messages and doing background linphone core work: */
	while(running){
		linphone_core_iterate(lc);
		ms_usleep(50000);
	}


	printf("Shutting down...\n");
	linphone_content_unref(content);
	linphone_core_destroy(lc);
	printf("Exited\n");
	return 0;
}

Real Time Text Receiver

This program is able to receive chat message in real time on port 5060. Use realtimetext_sender to generate chat message

Example: ./realtimetext_receiver

/*
linphone
Copyright (C) 2015  Belledonne Communications SARL

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., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
*/

/**
 * @defgroup real_time_text_sender Real Time Text Sender
 * @ingroup tutorials
 This program just send chat message in real time to dest uri. Use realtimetext_receiver to receive  message.
 usage: ./realtimetext_sender sip:localhost:5060


 @include realtimetext_sender.c
 */

#include "linphone/core.h"

#include <signal.h>

static bool_t running=TRUE;

static void stop(int signum){
	running=FALSE;
}



int main(int argc, char *argv[]){
	LinphoneCoreVTable vtable={0};
	LinphoneCore *lc;
	LinphoneCall *call=NULL;
	LinphoneChatRoom *chat_room;
	LinphoneChatMessage *chat_message=NULL;
	const char *dest=NULL;
	LCSipTransports tp;
	tp.udp_port=LC_SIP_TRANSPORT_RANDOM;
	tp.tcp_port=LC_SIP_TRANSPORT_RANDOM;
	tp.tls_port=LC_SIP_TRANSPORT_RANDOM;

	/* take the destination sip uri from the command line arguments */
	if (argc>1){
		dest=argv[1];
	}

	signal(SIGINT,stop);

#ifdef DEBUG_LOGS
	linphone_core_enable_logs(NULL); /*enable liblinphone logs.*/
#endif

	/*
	 Instanciate a LinphoneCore object given the LinphoneCoreVTable
	*/
	lc=linphone_core_new(&vtable,NULL,NULL,NULL);


	linphone_core_set_sip_transports(lc,&tp); /*to avoid port colliding with receiver*/
	if (dest){
		/*
		 Place an outgoing call with rtt enabled
		*/
		LinphoneCallParams *cp = linphone_core_create_call_params(lc, NULL);
		linphone_call_params_enable_realtime_text(cp,TRUE); /*enable real time text*/
		call=linphone_core_invite_with_params(lc,dest,cp);
		linphone_call_params_unref(cp);
		if (call==NULL){
			printf("Could not place call to %s\n",dest);
			goto end;
		}else printf("Call to %s is in progress...",dest);
		linphone_call_ref(call);

	}
	/*wait for call to be established*/
	while 	(running && (linphone_call_get_state(call) == LinphoneCallOutgoingProgress
						|| linphone_call_get_state(call) == LinphoneCallOutgoingInit)) {
		linphone_core_iterate(lc);
		ms_usleep(50000);
	}
	/*check if call is established*/
	switch (linphone_call_get_state(call)) {
	case LinphoneCallError:
	case LinphoneCallReleased:
	case LinphoneCallEnd:
		printf("Could not place call to %s\n",dest);
		goto end;
		break;
	default:
		break;
		/*continue*/
	}

	chat_room=linphone_call_get_chat_room(call); /*create a chat room associated to this call*/

	/* main loop for sending message and doing background linphonecore work: */
	while(running){
		int character;
		/*to disable terminal buffering*/
		if (system ("/bin/stty raw") == -1){
			ms_error("/bin/stty error");
		}
		character = getchar();
		if (system("/bin/stty cooked") == -1){
			ms_error("/bin/stty error");
		}
		if (character==0x03) {/*CTRL C*/
			running=0;
			break;
		}
		if (character != EOF) {
			/* user has typed something*/
			if (chat_message == NULL) {
				/*create a new message*/
				chat_message = linphone_chat_room_create_message(chat_room,""); /*create an empty message*/
			}
			if (character == '\r') {
				/*new line, committing message*/
				linphone_chat_room_send_chat_message(chat_room,chat_message);
				chat_message = NULL; /*reset message*/
			} else {
				linphone_chat_message_put_char(chat_message,character); /*send char in realtime*/
			}
		}
		linphone_core_iterate(lc);
		ms_usleep(50000);
	}
	if (call && linphone_call_get_state(call)!=LinphoneCallEnd){
		/* terminate the call */
		printf("Terminating the call...\n");
		linphone_core_terminate_call(lc,call);
		/*at this stage we don't need the call object */
		linphone_call_unref(call);
	}

end:
	printf("Shutting down...\n");
	linphone_core_destroy(lc);
	printf("Exited\n");
	return 0;
}

Real Time Text Sender

This program just send chat message in real time to dest uri. Use realtimetext_receiver to receive message.

Example: ./realtimetext_sender sip:localhost:5060

/*
linphone
Copyright (C) 2015  Belledonne Communications SARL

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., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
*/

/**
 * @defgroup real_time_text_sender Real Time Text Sender
 * @ingroup tutorials
 This program just send chat message in real time to dest uri. Use realtimetext_receiver to receive  message.
 usage: ./realtimetext_sender sip:localhost:5060


 @include realtimetext_sender.c
 */

#include "linphone/core.h"

#include <signal.h>

static bool_t running=TRUE;

static void stop(int signum){
	running=FALSE;
}



int main(int argc, char *argv[]){
	LinphoneCoreVTable vtable={0};
	LinphoneCore *lc;
	LinphoneCall *call=NULL;
	LinphoneChatRoom *chat_room;
	LinphoneChatMessage *chat_message=NULL;
	const char *dest=NULL;
	LCSipTransports tp;
	tp.udp_port=LC_SIP_TRANSPORT_RANDOM;
	tp.tcp_port=LC_SIP_TRANSPORT_RANDOM;
	tp.tls_port=LC_SIP_TRANSPORT_RANDOM;

	/* take the destination sip uri from the command line arguments */
	if (argc>1){
		dest=argv[1];
	}

	signal(SIGINT,stop);

#ifdef DEBUG_LOGS
	linphone_core_enable_logs(NULL); /*enable liblinphone logs.*/
#endif

	/*
	 Instanciate a LinphoneCore object given the LinphoneCoreVTable
	*/
	lc=linphone_core_new(&vtable,NULL,NULL,NULL);


	linphone_core_set_sip_transports(lc,&tp); /*to avoid port colliding with receiver*/
	if (dest){
		/*
		 Place an outgoing call with rtt enabled
		*/
		LinphoneCallParams *cp = linphone_core_create_call_params(lc, NULL);
		linphone_call_params_enable_realtime_text(cp,TRUE); /*enable real time text*/
		call=linphone_core_invite_with_params(lc,dest,cp);
		linphone_call_params_unref(cp);
		if (call==NULL){
			printf("Could not place call to %s\n",dest);
			goto end;
		}else printf("Call to %s is in progress...",dest);
		linphone_call_ref(call);

	}
	/*wait for call to be established*/
	while 	(running && (linphone_call_get_state(call) == LinphoneCallOutgoingProgress
						|| linphone_call_get_state(call) == LinphoneCallOutgoingInit)) {
		linphone_core_iterate(lc);
		ms_usleep(50000);
	}
	/*check if call is established*/
	switch (linphone_call_get_state(call)) {
	case LinphoneCallError:
	case LinphoneCallReleased:
	case LinphoneCallEnd:
		printf("Could not place call to %s\n",dest);
		goto end;
		break;
	default:
		break;
		/*continue*/
	}

	chat_room=linphone_call_get_chat_room(call); /*create a chat room associated to this call*/

	/* main loop for sending message and doing background linphonecore work: */
	while(running){
		int character;
		/*to disable terminal buffering*/
		if (system ("/bin/stty raw") == -1){
			ms_error("/bin/stty error");
		}
		character = getchar();
		if (system("/bin/stty cooked") == -1){
			ms_error("/bin/stty error");
		}
		if (character==0x03) {/*CTRL C*/
			running=0;
			break;
		}
		if (character != EOF) {
			/* user has typed something*/
			if (chat_message == NULL) {
				/*create a new message*/
				chat_message = linphone_chat_room_create_message(chat_room,""); /*create an empty message*/
			}
			if (character == '\r') {
				/*new line, committing message*/
				linphone_chat_room_send_chat_message(chat_room,chat_message);
				chat_message = NULL; /*reset message*/
			} else {
				linphone_chat_message_put_char(chat_message,character); /*send char in realtime*/
			}
		}
		linphone_core_iterate(lc);
		ms_usleep(50000);
	}
	if (call && linphone_call_get_state(call)!=LinphoneCallEnd){
		/* terminate the call */
		printf("Terminating the call...\n");
		linphone_core_terminate_call(lc,call);
		/*at this stage we don't need the call object */
		linphone_call_unref(call);
	}

end:
	printf("Shutting down...\n");
	linphone_core_destroy(lc);
	printf("Exited\n");
	return 0;
}