Return-Path: Message-ID: <20050217135456.6070.qmail@web60907.mail.yahoo.com> From: Ka Kin Cheung Subject: Re: [Bluez-users] rfcomm question 3 To: bluez-users@lists.sourceforge.net In-Reply-To: <4214975C.7000808@gmx.ch> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="0-42504244-1108648495=:4638" Sender: bluez-users-admin@lists.sourceforge.net Errors-To: bluez-users-admin@lists.sourceforge.net Reply-To: bluez-users@lists.sourceforge.net List-Unsubscribe: , List-Id: BlueZ users List-Post: List-Help: List-Subscribe: , List-Archive: Date: Thu, 17 Feb 2005 21:54:55 +0800 (CST) --0-42504244-1108648495=:4638 Content-Type: text/plain; charset=big5 Content-Transfer-Encoding: 8bit Hi Marco! I've put some functions you posted before into my main program. As I wish to write the program to act as server, I wrote like this: int main (int argc, char **argv) { //variable declaration... addr.rc_family = AF_BLUETOOTH; bacpy(&addr.rc_bdaddr, BDADDR_ANY); addr.rc_channel = 4; alen = sizeof(addr); //mysql initialization.... while (1) { // request a socket from the operating system if((sock = socket(AF_BLUETOOTH, SOCK_STREAM, BTPROTO_RFCOMM)) < 0) { printf("socket(...) failed"); exit(1); } // bind the socket to the system if(bind(sock, (struct sockaddr *)&addr, alen) < 0) { printf("bind(...) failed\n"); exit(2); } // set the socket into listen mode. handle 10 (QUEUE) connections. if(listen(sock, 10) < 0) { printf("listen(...) failed\n"); exit(3); } while(client = accept(sock, (struct sockaddr *)&addr, &alen)) { char remoteAddr[18]; ba2str(&addr.rc_bdaddr, remoteAddr); printf("connection from %s:\n", remoteAddr); // send a "hello from server" to client char out[] = "hello from server"; send(client, out, strlen(out), 0); printf("> %s\n", out); // read the answer char buffer[101]; // buffer size 100, 1 for '\0' int noReadChars = recv(client, buffer, sizeof(buffer)-1, 0); buffer[noReadChars] = '\0'; // here the received answer ends printf("< %s\n", buffer); while (1) { ....... After I ran it, the sock, bind and listen functions were all passed. But after that, I couldn't see any result about it. Then I wish to fiind out how to connect SE T610 to bluez in my PC, but I couldn't find the method. And the strange thing is that the phone could search my PC and then added it on the "My device" list, I was wondering why couldn't the phone initialize the connection to PC. I'm very surprising that Jay Summet said that T610 cannot connect to bluez in Linux PC. So I wish Jay also to explain why, and does it mean that there is no method that T610 can really initialize the connection to PC? By the way, after I looked at the specification of the bluetooth system, I could not find any way to write sdp program. So, can you and other mail users suggest a method for me to do? I really thank you very much for your kindness. Michael Marco Trudel wrote: Ka Kin Cheung wrote: > Hi all! > I'm still doing my project. Now I face a problem > that the T610 still cannot connect to PC. Then my > tutor said that I have to write a sdp program to let > the phone to connect to PC. this has nothing to do with it. i think you tutor is wrong... if your pc is listening on a rfcomm channel, then you can connect with a url like btspp://0123456789AB:4 the first part is the protocol, the second the mac address, the last one the channel number. have you tried/understood my last post to you: http://sourceforge.net/mailarchive/message.php?msg_id=10756581 you need a sdp-entry only if the mobile phone wants to do a service search (paging) what's not needed. a inquiry could get you the mac address and you then can connect to the listening port in your program. if it still doesn't work, please send a description of what you exactly do and what the exact results are. please use hcidump as well... regards Marco > I wish to know that is > there any guideline or even the source code for sdp > programming? It is urgent as my tutor said he used two > months to do it before. > Thank you very much for your kindness. > Michael > > > _______________________________________________________________________ > ?s?~?@???Ĥ@?? : ?????ͽt?H > http://personals.yahoo.com.hk > > > ------------------------------------------------------- > SF email is sponsored by - The IT Product Guide > Read honest & candid reviews on hundreds of IT Products from real users. > Discover which products truly live up to the hype. Start reading now. > http://ads.osdn.com/?ad_id=6595&alloc_id=14396&op=click > _______________________________________________ > Bluez-users mailing list > Bluez-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/bluez-users > > ------------------------------------------------------- SF email is sponsored by - The IT Product Guide Read honest & candid reviews on hundreds of IT Products from real users. Discover which products truly live up to the hype. Start reading now. http://ads.osdn.com/?ad_id=6595&alloc_id=14396&op=click _______________________________________________ Bluez-users mailing list Bluez-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bluez-users --------------------------------- ?s?~?@???Ĥ@?? : ?????ͽt?H --0-42504244-1108648495=:4638 Content-Type: text/html; charset=big5 Content-Transfer-Encoding: 8bit
Hi Marco!
    I've put some functions you posted before into my main program. As I wish to write the program to act as server, I wrote like this:
int main (int argc, char **argv)
{
 //variable declaration...
 addr.rc_family = AF_BLUETOOTH;
 bacpy(&addr.rc_bdaddr, BDADDR_ANY);
 addr.rc_channel = 4;
 alen = sizeof(addr);
 //mysql initialization....
 while (1)
 {
  // request a socket from the operating system
  if((sock = socket(AF_BLUETOOTH, SOCK_STREAM, BTPROTO_RFCOMM)) < 0)
  {
   printf("socket(...) failed");
   exit(1);
   }
  // bind the socket to the system
  if(bind(sock, (struct sockaddr *)&addr, alen) < 0)
  {
   printf("bind(...) failed\n");
   exit(2);
   }
  // set the socket into listen mode. handle 10 (QUEUE) connections.
  if(listen(sock, 10) < 0)
  {
   printf("listen(...) failed\n");
   exit(3);
   }
  while(client = accept(sock, (struct sockaddr *)&addr, &alen))
  {
   char remoteAddr[18];
   ba2str(&addr.rc_bdaddr, remoteAddr);
   printf("connection from %s:\n", remoteAddr);
   // send a "hello from server" to client
   char out[] = "hello from server";
   send(client, out, strlen(out), 0);
   printf("> %s\n", out);
   // read the answer
   char buffer[101]; // buffer size 100, 1 for '\0'
   int noReadChars = recv(client, buffer, sizeof(buffer)-1, 0);
   buffer[noReadChars] = '\0'; // here the received answer ends
   printf("< %s\n", buffer);
   while (1)
   {
          .......
 
After I ran it, the sock, bind and listen functions were all passed. But after that, I couldn't see any result about it. Then I wish to fiind out how to connect SE T610 to bluez in my PC, but I couldn't find the method. And the strange thing is that the phone could search my PC and then added it on the "My device" list, I was wondering why couldn't the phone initialize the connection to PC. I'm very surprising that Jay Summet said that T610 cannot connect to bluez in Linux PC. So I wish Jay also to explain why, and does it mean that there is no method that T610 can really initialize the connection to PC?
By the way, after I looked at the specification of the bluetooth system, I could not find any way to write sdp program. So, can you and other mail users suggest a method for me to do? I really thank you very much for your kindness.
Michael
 
Marco Trudel <mtrudel@gmx.ch> wrote:
Ka Kin Cheung wrote:
> Hi all!
> I'm still doing my project. Now I face a problem
> that the T610 still cannot connect to PC. Then my
> tutor said that I have to write a sdp program to let
> the phone to connect to PC.

this has nothing to do with it. i think you tutor is wrong...
if your pc is listening on a rfcomm channel, then you can connect with a
url like btspp://0123456789AB:4
the first part is the protocol, the second the mac address, the last one
the channel number.
have you tried/understood my last post to you:
http://sourceforge.net/mailarchive/message.php?msg_id=10756581

you need a sdp-entry only if the mobile phone wants to do a service search
(paging) what's not needed. a inquiry could get you the mac address and you
then can connect to the listening port in your program.

if it still doesn' t work, please send a description of what you exactly do
and what the exact results are. please use hcidump as well...

regards
Marco


> I wish to know that is
> there any guideline or even the source code for sdp
> programming? It is urgent as my tutor said he used two
> months to do it before.
> Thank you very much for your kindness.
> Michael
>
>
> _______________________________________________________________________
> ?s?~?@???Ĥ@?? : ?????ͽt?H
> http://personals.yahoo.com.hk
>
>
> -------------------------------------------------------
> SF email is sponsored by - The IT Product Guide
> Read honest & candid reviews on hundreds of IT Products from real users.
> Discover which products truly live up to the hype. Start reading now.
> http://ads.osdn.com/?ad_id=6595&alloc_id=14396&op=click
> _______________________________________________
> Bluez-users mailing list
> Bluez-users@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/bluez-users
>
>


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--0-42504244-1108648495=:4638-- ------------------------------------------------------- SF email is sponsored by - The IT Product Guide Read honest & candid reviews on hundreds of IT Products from real users. Discover which products truly live up to the hype. Start reading now. http://ads.osdn.com/?ad_id=6595&alloc_id=14396&op=click _______________________________________________ Bluez-users mailing list Bluez-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bluez-users