#include <sys/time.h> #include <osip2/osip.h>
int i; osip_t *osip; i=osip_init(&osip); if (i!=0) return -1;
On windows, you should write
#include <winsock2.h> #include <osip2/osip.h>
int i; osip_t *osip; i=osip_init(&osip); if (i!=0) return -1;
In case you want to use the state machines (transaction management), the second step will be to set a few callbacks which will inform you of any change in the state of a SIP transaction.
Most of the following callbacks are optional. The following ones are usefull.
// callback called when a SIP message must be sent. osip_set_cb_send_message(osip, &cb_udp_snd_message);
// callback called when a SIP transaction is TERMINATED. osip_set_kill_transaction_callback(osip ,OSIP_ICT_KILL_TRANSACTION, &cb_ict_kill_transaction); osip_set_kill_transaction_callback(osip ,OSIP_NIST_KILL_TRANSACTION, &cb_ist_kill_transaction); osip_set_kill_transaction_callback(osip ,OSIP_NICT_KILL_TRANSACTION, &cb_nict_kill_transaction); osip_set_kill_transaction_callback(osip ,OSIP_NIST_KILL_TRANSACTION, &cb_nist_kill_transaction);
// callback called when the callback to send message have failed. osip_set_transport_error_callback(osip ,OSIP_ICT_TRANSPORT_ERROR, &cb_transport_error); osip_set_transport_error_callback(osip ,OSIP_IST_TRANSPORT_ERROR, &cb_transport_error); osip_set_transport_error_callback(osip ,OSIP_NICT_TRANSPORT_ERROR, &cb_transport_error); osip_set_transport_error_callback(osip ,OSIP_NIST_TRANSPORT_ERROR, &cb_transport_error);
// callback called when a received answer has been accepted by the transaction. osip_set_message_callback(osip ,OSIP_ICT_STATUS_1XX_RECEIVED, &cb_rcv1xx); osip_set_message_callback(osip ,OSIP_ICT_STATUS_2XX_RECEIVED, &cb_rcv2xx); osip_set_message_callback(osip ,OSIP_ICT_STATUS_3XX_RECEIVED, &cb_rcv3456xx); osip_set_message_callback(osip ,OSIP_ICT_STATUS_4XX_RECEIVED, &cb_rcv3456xx); osip_set_message_callback(osip ,OSIP_ICT_STATUS_5XX_RECEIVED, &cb_rcv3456xx); osip_set_message_callback(osip ,OSIP_ICT_STATUS_6XX_RECEIVED, &cb_rcv3456xx);
// callback called when a received answer has been accepted by the transaction. osip_set_message_callback(osip ,OSIP_NICT_STATUS_1XX_RECEIVED, &cb_rcv1xx); osip_set_message_callback(osip ,OSIP_NICT_STATUS_2XX_RECEIVED, &cb_rcv2xx); osip_set_message_callback(osip ,OSIP_NICT_STATUS_3XX_RECEIVED, &cb_rcv3456xx); osip_set_message_callback(osip ,OSIP_NICT_STATUS_4XX_RECEIVED, &cb_rcv3456xx); osip_set_message_callback(osip ,OSIP_NICT_STATUS_5XX_RECEIVED, &cb_rcv3456xx); osip_set_message_callback(osip ,OSIP_NICT_STATUS_6XX_RECEIVED, &cb_rcv3456xx);
// callback called when a received request has been accepted by the transaction. osip_set_message_callback(osip ,OSIP_IST_INVITE_RECEIVED, &cb_rcvreq); osip_set_message_callback(osip ,OSIP_IST_ACK_RECEIVED, &cb_rcvreq); osip_set_message_callback(osip ,OSIP_NIST_REGISTER_RECEIVED, &cb_rcvreq); osip_set_message_callback(osip ,OSIP_NIST_BYE_RECEIVED, &cb_rcvreq); osip_set_message_callback(osip ,OSIP_NIST_CANCEL_RECEIVED, &cb_rcvreq); osip_set_message_callback(osip ,OSIP_NIST_INFO_RECEIVED, &cb_rcvreq); osip_set_message_callback(osip ,OSIP_NIST_OPTIONS_RECEIVED, &cb_rcvreq); osip_set_message_callback(osip ,OSIP_NIST_SUBSCRIBE_RECEIVED, &cb_rcvreq); osip_set_message_callback(osip ,OSIP_NIST_NOTIFY_RECEIVED, &cb_rcvreq); osip_set_message_callback(osip ,OSIP_NIST_UNKNOWN_REQUEST_RECEIVED, &cb_rcvreq);
// other callbacks exists... They are optionnal.