tree b42c3cad3efd6a219047a676ebf9dcaf2008cc1b
parent a663c930196b50194921e7ee685d0704ac32f6f4
author Rich Felker <dalias@aerifal.cx> 1385531643 -0500
committer Rich Felker <dalias@aerifal.cx> 1385531643 -0500

reject invalid address families in getaddrinfo

subsequent code assumes the address family requested is either
unspecified or one of IPv4/IPv6, and could malfunction if this
constraint is not met, so other address families should be explicitly
rejected.