> You seems to reffer Linux man, however, this patch calls

I was referring to a known behavior.  Your patch gets to call send(s,"",0),
which is technically a write call, and which in this case, falls into an 
undefined
domain for its argument, and hence, may be expected to change without notice.
That's all I was referring to.

Anton Lavrentiev
Contractor NIH/NLM/NCBI

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