call.c~

在linux下的osip小程序

#include <eXosip2/eXosip.h>
#include <osip2/osip_mt.h>

#include <stdio.h>
#include <stdlib.h>
#include <sys/types.h>
#include <netinet/in.h>
#include <sys/socket.h>

//拨打电话
int call()
{
    eXosip_event_t *je;
    
    osip_message_t *invite = NULL;
    osip_message_t *ack = NULL;

    int call_id, dialog_id;
    int i,flag;
    int id;

    char *source_call = "sip:77001234@61.233.3.35:5060"; // ＠后的格式一样，均为服务ip和端口，＠前是username
    char *dest_call = "sip:015840642982@61.233.3.35:5060";// 015840642982 为电话号码，外地号，前＋0

	//初始化
    i = eXosip_call_build_initial_invite (&invite, dest_call, source_call, NULL, "This si a call for a conversation");
    if (i != 0)
    {
	printf ("Intial INVITE failed!\n");
	return -1;
    }

    char tmp[4096];
    char localip[128];
    char *port = "8989";

//获取本机ip
    eXosip_guess_localip (AF_INET, localip, 128);
    snprintf (tmp, 4096,
	    "v=0\r\n"
	    "o=josua 0 0 IN IP4 %s\r\n"
	    "s=conversation\r\n"
	    "c=IN IP4 %s\r\n"
	    "t=0 0\r\n"
	    "m=audio %s RTP/AVP 0 8 101\r\n"
	    "a=rtpmap:0 PCMU/8000\r\n"
	    "a=rtpmap:8 PCMA/8000\r\n"
	    "a=rtpmap:101 telephone-event/8000\r\n"
	    "a=fmtp:101 0-11\r\n", localip, localip, "9900");


    osip_message_set_body (invite, tmp, strlen (tmp));
    osip_message_set_content_type (invite, "application/sdp");
//发送invite请求
    eXosip_lock ();
    i = eXosip_call_send_initial_invite (invite);
    eXosip_unlock ();
    flag = 1;

    while (flag)
    {
	je = eXosip_event_wait (0, 20000);

	if (je == NULL)
	{
	    printf ("No response or the time is over!\n");
	    break;
	}

	eXosip_lock ();
	eXosip_default_action(je);  
	eXosip_unlock ();

//消息循环
	switch (je->type)
	{
	    case EXOSIP_CALL_INVITE:
		printf ("a new invite reveived!\n");
		break;
	    case EXOSIP_CALL_PROCEEDING:
		printf ("proceeding!\n");
		call_id = je->cid;
		break;
	    case EXOSIP_CALL_RINGING:
		printf ("ringing!\n");
		printf ("call_id is %d, dialog_id is %d \n", je->cid, je->did);
		break;
	    case EXOSIP_CALL_ANSWERED:
		printf ("ok! connected!\n");

		call_id = je->cid;
		dialog_id = je->did;
		printf ("call_id is %d, dialog_id is %d \n", je->cid, je->did);

		eXosip_call_build_ack (je->did, &ack);
		eXosip_call_send_ack (je->did, ack);
		break;
	    case EXOSIP_CALL_CLOSED:
		printf ("the other sid closed!\n");
		break;
	    case EXOSIP_CALL_ACK:
		printf ("ACK received!\n");
		break;
#if 0
	    case EXOSIP_CALL_REQUESTFAILURE:
		printf("REQUESTFAILURE:%d\n",je->type);
		break;
#endif
	}
	eXosip_event_free (je);

    }
}