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Message-ID: <20140123165356.GN1685@port70.net>
Date: Thu, 23 Jan 2014 17:53:56 +0100
From: Szabolcs Nagy <nsz@...t70.net>
To: musl@...ts.openwall.com
Subject: domain name resolution issues
getaddrinfo fails to parse /etc/hosts entries if they are
whitespace prefixed (not sure if that's legit, but glibc
can parse it)
and only the first match is returned, eg.
getaddrinfo("localhost", 0, 0, &ai);
only gives one result (127.0.0.1) eventhough /etc/hosts says
127.0.0.1 localhost
::1 localhost ip6-localhost ip6-loopback
then if i do a name lookup on the returned address with
getnameinfo(ai->ai_addr, ai->ai_addrlen, host, sizeof host, serv, sizeof serv, 0);
it seems to do a complete dns query to the nameserver,
i wonder if it might worth to do a local /etc/hosts
search first
(i see now that the test system should run in a sandboxed
environment otherwise such interfaces are not possible to
test)
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