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If the user-supplied hostname can't be found then we should not use it. We already avoid doing that in the non-NO_IPV6 case by checking if the return value of getaddrinfo() is zero (success). Do the same in the NO_IPV6 case and make sure the return value of gethostbyname() isn't NULL before dereferencing this pointer. Signed-off-by: Rene Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
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