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Re: [lwip-users] Sending out TCP-Data as integer type


From: Bill Auerbach
Subject: Re: [lwip-users] Sending out TCP-Data as integer type
Date: Wed, 5 Dec 2012 17:47:40 -0500

 

From: address@hidden [mailto:address@hidden On Behalf Of Mark Lakata
Sent: Wednesday, December 05, 2012 5:16 PM
To: address@hidden
Subject: Re: [lwip-users] Sending out TCP-Data as integer type

 

Oops, *I* need to read up on paying attention... sorry, I retract my comment. There are 2 bugs in the original posting, first the data buffer size (should be sizeof(int) and not 1) and second (which I missed) that he is not passing a pointer.  It has nothing to do with Endianness .

 

Maybe not a typo – depends what the OP wants to do.  If he wants to send a 0 to 255 as a byte (which is implied with a length of 1) then sizeof(int) isn’t right – that sends (probably 4) bytes.  You do need the address of data and being a pointer to an int which is sent as bytes it might be affected by endianess if the other end differs in endianess.

 

Bill


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