[En-Nut-Discussion] issue with full memory and resolve.c

[Rich Peters]

Hi,

there are several issues with C:\ethernut-4.8.5\nut\pro\resolv.c in an 
out of memory situation.
There are mallocs which dont check if the return is null, and some 
unfreed memory
I have attached a patch that addresses the issues.

thanks
Rich

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