osip及eXosip的编译方法

osip及eXosip的编译方法

在最新版本的osip2、exosip2中不支持在VC6.0下编译osip、exosip协议栈的方法

说明：
1.以下文章中的osip版本为3.1.0
2.eXosip版本为3.1.0
3.编译环境为：Windows XP 专业版本+VS 2005
4.实例程序下载：http://download.csdn.net/source/617797
5.osip、exosip、openssl的开发包下载，开发包包括：osip2.dll、osipparser2.dll、exosip2.dll、libeay32.dll、ssleay32.dll和相对应的lib文件，下载地址同上

第一步，下载：
到http://download.savannah.gnu.org/releases/osip/libosip2-3.1.0.tar.gz
下载最新的osip库并解压
到http://download.savannah.gnu.org/releases/exosip/libeXosip2-3.1.0.tar.gz
下载最新的eXsoip库并解压
第二步，编译osip3.1.0：
1.用VS2005打开libosip2-3.1.0/platform/vsnet/osip.sln
2.对osip2和osipparser2项目生成Release DLL
3.其生成的LIB/DLL 位于：libosip2-3.1.0/platform/vsnet/Release DLL/下
4.如果有出现外部变量找不到的情况，很有可能是生成的dll没有实现该函数，在def文件中删除找不到的外部变量就好了
第三步，编译eXosip3.1.0：
1.用VS2005打开libeXosip2-3.1/platform/vsnet/eXosip.sln
2.将libosip2-3.1/include/osip2目录COPY到libeXosip2-3.1/include/下
3.将libosip2-3.1/include/osipparser2目录COPY到libeXosip2-3.1/include/下
4.在libeXosip2-3.1目录下新建lib目录
5.将“第二步”中生成的libosip2-3.1/platform/vsnet/Release DLL/osip2.lib文件COPY到libeXosip2-3.1/lib目录下
6.将“第二步”中生成的libosip2-3.1/platform/vsnet/Release DLL/osipparser2.lib文件COPY到libeXosip2-3.1/lib目录下
7.修改项目属性，新增Dnsapi.lib Iphlpapi.lib Ws2_32.lib osip2.lib osipparser2.lib库输入
8.修改项目属性，新增库目录../../lib
9.修改项目的输出为.DLL，默认为.lib
10.编译Relase DLL
11.其生成的LIB/DLL 位于：libeXosip2-3.1/platform/vsnet/Release/下

注意：

在eXoSip.def 中添加下面函数的导出,不知道是为什么 这些函数没有导出!
     eXosip_call_set_reference
    eXosip_call_build_initial_invite
    eXosip_call_send_initial_invite
    eXosip_call_build_request
    eXosip_call_build_ack
    eXosip_call_send_ack
    eXosip_call_build_refer
    eXosip_call_build_info
    eXosip_call_build_options
    eXosip_call_build_update
    eXosip_call_build_notify
    eXosip_call_send_request
    eXosip_call_build_answer
    eXosip_call_send_answer
    eXosip_call_terminate
    eXosip_call_build_prack
    eXosip_call_send_prack
    eXosip_call_get_referto
    eXosip_call_find_by_replaces

编译osip可能会出现如下错误：

1：在osipparser.dll的def文件会出现几个拼写错误，如缺少MD5_****的函数前面缺少osip_,使得连接器出现link2019错误，解决方法是在前面加上osip_

2：但是如果在编译的时候出现错误：

libnet_prand.obj : error LNK2001: unresolved external symbol __imp__CryptReleaseContext@8
libnet_prand.obj : error LNK2001: unresolved external symbol __imp__CryptGenRandom@12
libnet_prand.obj : error LNK2001: unresolved external symbol __imp__CryptAcquireContextA@20
Debug/Libnet.dll : fatal error LNK1120: 3 unresolved externals

仔细看了下，CryptReleaseContext等这三个函数不是从advapi32.lib里导入的么？难道要加上advapi32.lib库？在项目设置的连接里把advapi32.lib加上，然后rebuil all，果然成功。

如果出现是__RTC_CheckEsp这个外部变量无法解析，很大可能是两个项目的配置不一样，比如说一个能从父项目继承什么。另外一个没有设置，就会出现这个问题。

编译eXosip可能会出现的问题：

要包含头文件：ssleay32.lib libeay32.lib Dnsapi.lib Iphlpapi.lib Ws2_32.lib osip2.lib osipparser2.lib kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib ，其中ssleay32.lib libeay32.lib是openssl的静态库。

可能还会找不到一些无法解析的外部变量，可能是在osip的输出dll的def文件中没有加上

     osip_transaction_set_srv_record     @122

然后重新编译osip

外部变量问题，一般都是库文件的问题，记住要把库文件放在工程目录lib目录下（没有lib目录自己新建一个） 然后在工具->项目->c/c++->C++目录下把设置../../lib设置成包含的目录

其中ssleay32.lib libeay32.lib是openssl编译形成的静态链接库，可以从网上下载，或者自己编译

之外，尤其大家下载的源代码由于认为的或者是编译环境的不同，容易造成多种错误，我还碰到了个无法解析的Osip_^^^!!#@!@#!函数无法解析的情况，在osip中的def文件一查，果然缺少个122的函数文件输出声明，加进去重新编译osip，成功，在编译eXosip成功！

最后运行实例,进行项目配置：

osip及eXosip的开发方法：
将以下程序作为UAS.CPP保存

// UAS.cpp : 定义控制台应用程序的入口点。

//

# include <eXosip2/eXosip.h>

# include <stdio.h>

# include <stdlib.h>

# include <Winsock2.h>



/*

# include <netinet/in.h>

# include <sys/socket.h>

# include <sys/types.h>

*/



#pragma comment(lib, "osip2.lib")

#pragma comment(lib, "osipparser2.lib")

#pragma comment(lib, "eXosip.lib")

#pragma comment(lib, "Iphlpapi.lib")

#pragma comment(lib, "Dnsapi.lib")

#pragma comment(lib, "ws2_32.lib")



int main (int argc, char *argv[])

{



    eXosip_event_t *je = NULL;

    osip_message_t *ack = NULL;

    osip_message_t *invite = NULL;

    osip_message_t *answer = NULL;

    sdp_message_t *remote_sdp = NULL;

    int call_id, dialog_id;

    int i,j;

    int id;



    char *sour_call = "sip:[email protected]";

    char *dest_call = "sip:[email protected]:5061";//client ip



    char command;

    char tmp[4096];

    char localip[128];

    int pos = 0;



    //初始化sip

    i = eXosip_init ();

    if (i != 0)

    {

        printf ("Can'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");

    }



    for(;;)

    {

        //侦听是否有消息到来

        je = eXosip_event_wait (0,50);



        //协议栈带有此语句,具体作用未知



        eXosip_lock ();

        eXosip_default_action (je);

        eXosip_automatic_refresh ();

        eXosip_unlock ();



        if (je == NULL)//没有接收到消息

            continue;



        // printf ("the cid is %s, did is %s/n", je->did, je->cid);



        switch (je->type)

        {

        case EXOSIP_MESSAGE_NEW://新的消息到来

            printf (" EXOSIP_MESSAGE_NEW!/n");

            if (MSG_IS_MESSAGE (je->request))//如果接受到的消息类型是MESSAGE

            {

                osip_body_t *body;

                osip_message_get_body (je->request, 0, &body);

                printf ("I get the msg is: %s/n", body->body);

                //printf ("the cid is %s, did is %s/n", je->did, je->cid);



                //按照规则，需要回复OK信息

                eXosip_message_build_answer (je->tid, 200,&answer);

                eXosip_message_send_answer (je->tid, 200,answer);

            }

            break;



        case EXOSIP_CALL_INVITE:

            //得到接收到消息的具体信息

            printf ("Received a INVITE msg from %s:%s, UserName is %s, password is %s/n",

                    je->request->req_uri->host,

                    je->request->req_uri->port,

                    je->request->req_uri->username,

                    je->request->req_uri->password);



            //得到消息体,认为该消息就是SDP格式.

            remote_sdp = eXosip_get_remote_sdp (je->did);

            call_id = je->cid;

            dialog_id = je->did;



            eXosip_lock ();

            eXosip_call_send_answer (je->tid, 180, NULL);



            i = eXosip_call_build_answer (je->tid, 200, &answer);

            if (i != 0)

            {

                printf ("This request msg is invalid!Cann't response!/n");

                eXosip_call_send_answer (je->tid, 400, NULL);

            }

            else

            {

                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");



                /*设置回复的SDP消息体,下一步计划分析消息体

                              没有分析消息体，直接回复原来的消息，

                              这一块做的不好。

                              */

                osip_message_set_body (answer, tmp, strlen(tmp));

                osip_message_set_content_type (answer, "application/sdp");

                eXosip_call_send_answer (je->tid, 200, answer);

                printf ("send 200 over!/n");

            }

            eXosip_unlock ();



            //显示出在sdp消息体中的attribute 的内容,里面计划存放我们的信息

            printf ("the INFO is :/n");



            while (!osip_list_eol ( &(remote_sdp->a_attributes), pos))

            {

                sdp_attribute_t *at;



                at = (sdp_attribute_t *) osip_list_get ( &remote_sdp->a_attributes, pos);

                printf ("%s : %s/n", at->a_att_field, at->a_att_value);

                //这里解释了为什么在SDP消息体中属性a里面存放必须是两列



                pos ++;

            }

            break;



        case EXOSIP_CALL_ACK:

            printf ("ACK recieved!/n");

            // printf ("the cid is %s, did is %s/n", je->did, je->cid);

            break;



        case EXOSIP_CALL_CLOSED:

            printf ("the remote hold the session!/n");

            // eXosip_call_build_ack(dialog_id, &ack);

            //eXosip_call_send_ack(dialog_id, ack);



            i = eXosip_call_build_answer (je->tid, 200, &answer);

            if (i != 0)

            {

                printf ("This request msg is invalid!Cann't response!/n");

                eXosip_call_send_answer (je->tid, 400, NULL);

            }

            else

            {

                eXosip_call_send_answer (je->tid, 200, answer);

                printf ("bye send 200 over!/n");

            }



            break;



        case EXOSIP_CALL_MESSAGE_NEW:

            /*至于该类型和EXOSIP_MESSAGE_NEW的区别，源代码这么解释的

                  request related events within calls (except INVITE)

                  EXOSIP_CALL_MESSAGE_NEW,  < announce new incoming request. response received for request outside calls

                  EXOSIP_MESSAGE_NEW,          < announce new incoming request.

                  我也不是很明白，理解是：

                  EXOSIP_CALL_MESSAGE_NEW是一个呼叫中的新的消息到来，

                  比如ring trying都算， 所以在接受到后必须判断 该消息类型，

                  EXOSIP_MESSAGE_NEW而是表示不是呼叫内的消息到来。

                  该解释有不妥地方，仅供参考。

            */

            printf(" EXOSIP_CALL_MESSAGE_NEW/n");



            if (MSG_IS_INFO(je->request) ) //如果传输的是INFO方法

            {

                eXosip_lock ();

                i = eXosip_call_build_answer (je->tid, 200, &answer);

                if (i == 0)

                {

                    eXosip_call_send_answer (je->tid, 200, answer);

                }

                eXosip_unlock ();

                {

                    osip_body_t *body;

                    osip_message_get_body (je->request, 0, &body);

                    printf ("the body is %s/n", body->body);

                }

            }

            break;



        default:

            printf ("Could not parse the msg!/n");

            break;

        }

    }

}

 

将以下程序作为UAC.CPP保存

// UAC.cpp : 定义控制台应用程序的入口点。

//

# include <eXosip2/eXosip.h>

# include <stdio.h>

# include <stdlib.h>

# include <Winsock2.h>



/*

＃i nclude <netinet/in.h>

＃i nclude <sys/socket.h>

＃i nclude <sys/types.h>

*/



#pragma comment(lib, "osip2.lib")

#pragma comment(lib, "osipparser2.lib")

#pragma comment(lib, "eXosip.lib")

#pragma comment(lib, "Iphlpapi.lib")

#pragma comment(lib, "Dnsapi.lib")

#pragma comment(lib, "ws2_32.lib")



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:[email protected]";

    char *registerer = "sip:10.16.79.24:5060";//server ip

    char *source_call = "sip:[email protected]";

    char *dest_call = "sip:[email protected]:5060";//server ip



    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, 5061, AF_INET, 0);

    if (i != 0)

    {

        eXosip_quit ();

        fprintf (stderr, "Couldn'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);

}