2010-05-06  Ulrich Drepper  <drepper@redhat.com>

	* nss/getent.c (idn_flags): Default to AI_IDN|AI_CANONIDN.
	(args_options): Add no-idn option.
	(ahosts_keys_int): Add idn_flags to ai_flags.
	(parse_option): Handle 'i' option to clear idn_flags.

	* malloc/malloc.c (_int_free): Possible race in the most recently
	added check.  Only act on the data if no current modification
	happened.