xmalloc(foo*bar) -> xcalloc(foo, bar) for Portable

[Darren Tucker]

Roumen Petrov wrote:
>> -    ai = malloc(sizeof(*ai) + sizeof(struct sockaddr_in));
>> +    ai = calloc(sizeof(*ai), sizeof(struct sockaddr_in));
> 
> Not sure

Yeah, that's definitely wrong.  I dropped that one but the rest have 
been applied.

Thanks.

-- 
Darren Tucker (dtucker at zip.com.au)
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