TCP Header
lazarus / 38-Networking and Web Programming

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gilsonalencar · 2010-12-30 23:19

Is there anyway to read a TCP or UDP field using some Lazarus network
component? I'm interesting in to access a particular field of TCP or
UDP header.

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cpalx · 2010-12-31 02:55

try Synapse or Lnet

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marcov · 2010-12-31 15:38

Afaik  this is more PCAP work

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gilsonalencar · 2010-12-31 17:34

Synapse and LNET appears to have no resources to access a TCP or UDP
headers as libpcap for C++ and jpcap for Java.

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marcov · 2010-12-31 17:57

Quote from: gilsonalencar on December 31, 2010, 06:34:02 pmSynapse and
LNET appears to have no resources to access a TCP or UDP headers as
libpcap for C++ and jpcap for Java.

libpcap is afaik C, and a header in FPC could be written (or recycle
one for Delphi)

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gilsonalencar · 2010-12-31 20:00

So, is it possible to write a program into lazarus using methods (with
codes written in c) available in the libcap?

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marcov · 2010-12-31 21:15

Quote from: gilsonalencar on December 31, 2010, 09:00:11 pmSo, is it
possible to write a program into lazarus using methods (with codes
written in c) available in the libcap?

Technically, yes.

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gilsonalencar · 2011-01-03 21:31

Thanks for all information. I will investigate the possibilities.

Happy New Year