about UDP packet capture error

hi
I am a beginner in network programming I am trying out a UDP packet
transfer between a windows machine and a linux I created a structure on
both sides (ie on linux and on windows) and I sent using a UDP but the
packetI captured appeared to be with some extra-added data
I tried to clear the buffer before packet is ordered and sent and even
cleared the buff before capturing it on receiving side I am placing
both the print and structure I used
kindly suggest me what to modify

my structure
<code>
typedef struct
{
INT32S connId;
INT32S seqNo;
}addrData_t;

typedef struct
{
INT16S typeId;
INT16S length;
addrData_t addrData;

}addrItem_t;

typedef struct
{
INT16S typeId;
INT16S length;
INT8U data[1];
}dataItem_t;

typedef struct
{
INT16S itemCount;
addrItem_t addrItem;
dataItem_t dataItem;
} udpPacket_t;
</code>


print of windows from sending side
2 0 0 0 2 80 0 0 8 0 0 0 15 d6 99 b6 0 0 0 0 UDP PACKET SENT

typeid 8002
len 8
conn b69a263b
seq 0
dtype b1
dlen 1
data 12




print of linux from receiving side
2 0 0 0 2 ffffff80 0 0 8 0 0 0 15 ffffffd6 ffffff99
ffffffb6 0 0 0 0

Type Id 0
length 8002
ConnId 80000
Seq no d6150000
Data typeid b699
Data length 0
Item Count 2


kindly suggest what mistake I did both machines are same "ENDEIN"s

thanks regards
PMM

.

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  • Re: about UDP packet capture error
    ... transfer between a windows machine and a linux I created a structure on ... typedef struct ...
    (comp.lang.c)
  • Re: about UDP packet capture error
    ... transfer between a windows machine and a linux I created a structure on ... typedef struct ... kindly suggest what mistake I did both machines are same "ENDEIN"s ...
    (comp.lang.c)