[ECOS] lwip socket errors

[William Wagner <will_wagner at carallon dot com>]

Hi All,

Been looking at getting lwip to set errno when errors occur and am 
struggling a bit. The problem is in 
packages\net\lwip_tcpip\current\src\api\sockets.c:152

To get it so that errno is set with the macro set_errno you must have 
ERRNO defined. I have changed the cdl so that this is set. However you 
then get a compilation error as errno is undefined. Attached is my 
proposed patch to fix the issue. I realise this is a change to lwip code 
which is best avoided but I can't see any other way of making it work. 
Opinions?

I will ask upstream to see what they have to say on the issue as well.

Thanks
Will

--
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Will Wagner                                     will_wagner@carallon.com
Development Manager                      Office Tel: +44 (0)20 7371 2032
Carallon Ltd, Studio G20, Shepherds Building, Rockley Rd, London W14 0DA
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Attachment: ecos-106c473a344b78de23a67b749f218911006577ab.patch
Description: Text document

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