li1c.c

自己写的SIP小程序

/*******************UAC*****************************************************

本文可以任意转载，但必须保留出处

作者：rainfish

网址：http://blog.csdn.net/bat603/

测试环境：eXosip3.0.1/redhat AS 4

***************************************************************************/



#include <eXosip2/eXosip.h>

#include <stdio.h>

#include <stdlib.h>

#include <netinet/in.h>

#include <sys/socket.h>

#include <sys/types.h>



int 

main (int argc, char *argv[])

{

   eXosip_event_t *je;

   osip_message_t *reg = NULL;

   osip_message_t *invite = NULL;

   osip_message_t *ack = NULL;

   osip_message_t *info = NULL;

   osip_message_t *message = NULL;



   int call_id, dialog_id;

   int i,flag;

   int flag1 = 1;

   int id;

  

   char *identity = "sip:140@192.168.0.140";

   char *registerer = "sip:192.168.0.133:5060";

   char *source_call = "sip:133@192.168.0.114";

   char *dest_call = "sip:140@192.168.0.114:5070";

  

   char command;

   char tmp[4096];

   char localip[128];



   printf("r      向服务器注册\n\n");

   printf("c      取消注册\n\n");

   printf("i      发起呼叫请求\n\n");

   printf("h      挂断\n\n");

   printf("q      退出程序\n\n");

   printf("s      执行方法INFO\n\n");

   printf("m      执行方法MESSAGE\n\n");

   //初始化

   i = eXosip_init ();

   if (i != 0)

     {

       printf ("Couldn't initialize eXosip!\n");

       return -1;

     }

   else

     {

       printf ("eXosip_init successfully!\n");

     }



   i = eXosip_listen_addr (IPPROTO_UDP, NULL, 5060, AF_INET, 0);

   if (i != 0)

     {

       eXosip_quit ();

       fprintf (stderr, "eXosip_listen_addr error!\nCouldn't initialize transport layer!\n");

       return -1;

     }

   flag = 1;

   while (flag)

     {

       printf ("please input the comand:\n");

       scanf ("%c", &command);

       getchar ();

      

       switch (command)

     {

     case 'r':

       printf ("This modal isn't commpleted!\n");

       break;

     case 'i':/* INVITE */

       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");

           break;

         }

         //符合SDP格式,其中属性a是自定义格式,也就是说可以存放自己的信息,但是只能是两列,比如帐户信息

         //但是经测试,格式:v o t必不可少,原因未知,估计是协议栈在传输时需要检查的

       snprintf (tmp, 4096,

             "v=0\r\n"

             "o=anonymous 0 0 IN IP4 0.0.0.0\r\n"

             "t=1 10\r\n"

             "a=username:rainfish\r\n"

             "a=password:123\r\n");

       osip_message_set_body (invite, tmp, strlen(tmp));

       osip_message_set_content_type (invite, "application/sdp");

      

       eXosip_lock ();

       i = eXosip_call_send_initial_invite (invite);

       eXosip_unlock ();

       flag1 = 1;

       while (flag1)

         {

           je = eXosip_event_wait (0, 200);

          

           if (je == NULL)

         {

           printf ("No response or the time is over!\n");

           break;

         }

          

           switch (je->type)

         {

         case EXOSIP_CALL_INVITE:

           printf ("a new invite reveived!\n");

           break;

         case EXOSIP_CALL_PROCEEDING:

           printf ("proceeding!\n");

           break;

         case EXOSIP_CALL_RINGING:

           printf ("ringing!\n");

           // call_id = je->cid;

           // dialog_id = je->did;

           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);

           flag1 = 0;

           break;

         case EXOSIP_CALL_CLOSED:

           printf ("the other sid closed!\n");

           break;

         case EXOSIP_CALL_ACK:

           printf ("ACK received!\n");

           break;

         default:

           printf ("other response!\n");

           break;

         }

           eXosip_event_free (je);

         

         }

       break;

     case 'h':

       printf ("Holded !\n");

      

       eXosip_lock ();

       eXosip_call_terminate (call_id, dialog_id);

       eXosip_unlock ();

       break;

     case 'c':

       printf ("This modal isn't commpleted!\n");

       break;

     case 's':

     //传输INFO方法

       eXosip_call_build_info (dialog_id, &info);

       snprintf (tmp , 4096,

             "hello,rainfish");

       osip_message_set_body (info, tmp, strlen(tmp));

       //格式可以任意设定,text/plain代表文本信息

       osip_message_set_content_type (info, "text/plain");

       eXosip_call_send_request (dialog_id, info);

       break;

     case 'm':

     //传输MESSAGE方法,也就是即时消息，和INFO方法相比，我认为主要区别，是MESSAGE不用建立连接，直接传输信息，而INFO必须

     //在建立INVITE的基础上传输。

       printf ("the mothed :MESSAGE\n");

       eXosip_message_build_request (&message, "MESSAGE", dest_call, source_call, NULL);

       snprintf (tmp, 4096,

             "hellor rainfish");

       osip_message_set_body (message, tmp, strlen(tmp));

       //假设格式是xml

       osip_message_set_content_type (message, "text/xml");

       eXosip_message_send_request (message);

       break;

     case 'q':

       eXosip_quit ();

       printf ("Exit the setup!\n");

       flag = 0;

       break;

     }

     }

   return (0);

}