read sniffing data over tcp

i'm developing application that is listening to the data开发者_StackOverflow中文版 coming to the pc and store it in a db when i'm trying to use any sniffing software it decode the data and i can read it... but in my code ....i cant read it at all it come in a format like that

1822262151622341817118815518211616121520941131921572041519912321413018224510453482062312258624219217426213385792952422362282081777270129716688629114817282188771708157542505055171418651781981425595109572128317191993018793431541418175198551682143218916536118562071014546919618158204181231187237183188160147127165111798312311810419822146114761993113815821216617541542372062129733198212250147199288115346102031191275215728146245198190171121209115149107193226253199151253205183146112072202559697791491441131572351381412278441552554817712614110121823714822712523618924690185291182071331471286244143181469018522814822821118012620321315924832238219115405615512392145202385512115735771691111055935782371281492476567165158924021493139815144225143762294713291762001113814720516216041120169912317914878167571392103510118386589521910621319622274158971538465206168139190127867123282255271781242497522124211517622131122113236255230254211206911242051832545515823012124925217318223920523316923122925514321122343602492471242........

can any one tell me what kind of data is that and any code to solve it out??

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To see what a real packet sniffer looks like, check out WireShark. There are many different protocols over TCP, and many of them are binary. Those that aren't may be using unicode characters, which are two-byte characters so an ascii display of them would be meaningless.

Anyway, the data you're displaying is pretty meaningless. It looks like decimal data, are you concatenating a bunch of decimal representations of the binary stream interpreted as byte or integer values? That would explain it. You should start by running the stream through System.TextEncoding.ASCII.Decode You'll probably see some recognizable strings. Then try System.TextEncoding.Unicode.Decode, etc.

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No, we cannot. And the reason is simple, we don't know what application you are sniffing.

That stream of data could mean anything.

But, I suggest you print the data in hexadecimal. Maybe the data would make more sense.