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Am Montag, 08. April 2002 11:53 schrieben Sie:
> This is the recieving funktion that I use in my program. It's almost the
> same as the funktion in sctpterminal in socket_program subdir, except i put
> in a loop. Do you have any comments on this program ?

The function seems to be okay. Your gdb output shows that the problem is most
probably caused by the sctplib itself. It seems that the memory allocation
information is corrupted somewhere, e.g. by calling free() twice.

The loop should not cause a problem, since the clear() method re-initializes
the whole object (This method is also called by the constructor itself).


> void receiveResponse(Socket *clientSocket)
> {
> char buffer[16384];
> SocketMessage<CSpace(sizeof(sctp_sndrcvinfo))> message;
> while(1) {
> message.clear();
> message.setBuffer((char*)buffer,sizeof(buffer));
> // ====== Receive string from association =============================
> const ssize_t dataLength = clientSocket->receiveMsg(&message.Header,0);
> if(dataLength < 0) {
> cleanUpAndExit(1);
> }
> else{
> printControl(&message.Header);
> unsigned short streamID = 0;
> unsigned int protoID = 0;
> cmsghdr* cmsg = message.getFirstHeader();
> if(cmsg != NULL) {
> while(cmsg != NULL) {
> if((cmsg->cmsg_level == IPPROTO_SCTP) &&
> (cmsg->cmsg_type == SCTP_SNDRCV)) {
> sctp_sndrcvinfo* info = (sctp_sndrcvinfo*)CData(cmsg);
> streamID = info->sinfo_stream;
> protoID = info->sinfo_ppid;
> }
> cmsg = message.getNextHeader(cmsg);
> }
> }
> if(message.Header.msg_flags & MSG_NOTIFICATION) {
> sctp_notification* notification = (sctp_notification*)&buffer;
> printNotification(notification);
> }
> else{
> buffer[dataLength] = 0x00;
> handleRecievedData(buffer,dataLength,streamID);
> }
> }
> }
> }
>
> /thanks Torbjörn
> _______________________________________________
> discussion mailing list
> discussion AT sctp.de
> http://www.sctp.de/mailman/listinfo/discussion

- --
=======================================================================
Dipl.-Inform. Thomas Dreibholz

University of Essen, Room ES210
Inst. for Experimental Mathematics Ellernstraße 29
Computer Networking Technology Group D-45326 Essen/Germany
- -----------------------------------------------------------------------
E-Mail:
dreibh AT exp-math.uni-essen.de
Homepage: http://www.exp-math.uni-essen.de/~dreibh
=======================================================================

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• [SCTP-Discussion] Regarding the crash submission., Torbjorn Andersson, 04/08/2002
  • Re: [SCTP-Discussion] Regarding the crash submission., Thomas Dreibholz, 04/08/2002

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