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- From: amar deka <amar_nitw2000 AT yahoo.co.in>
- To: discussion AT sctp.de
- Subject: [SCTP-Discussion] modifying SCTP_message structure
- Date: Sun Mar 20 08:52:01 2005
- List-id: SCTP Discussions <discussion.sctp.de>
hi all
I tried to modify the "SCTP_message" structute in
messages.h
by
typedef struct SCTP_MESSAGE
{
SCTP_common_header common_header;
guchar sctp_pdu[MAX_SCTP_PDU];
guchar my_data[MY_DATA_SIZE];
}
SCTP_message;
so that i can add some data to the SCTP message
calculated over the original message.
then i tried to modify
mdi_send_message() in distribution.c by adding
..
..
char data[MY_DATA_SIZE]="skkkksjsij........";
.
.
memcpy(message->my_data,data,MY_DATA_SIZE);
..
before the line
aux_insert_checksum((unsigned char *) message,
length);
...
then i tried to receive the message->mydata from
mdi_receiveMessage()
in a char buffer by
buffer=(char*)message->my_data;
and tried to print it.
all i get is a garbage.
what may be the problem?
Another question ...
if i have to add a new control chunk and manipulate it
what steps should i follow??
SOS plz
amar
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- [SCTP-Discussion] modifying SCTP_message structure, amar deka, 03/20/2005
- Re: [SCTP-Discussion] modifying SCTP_message structure, Michael Tuexen, 03/20/2005
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