[CFR] thread-safe getserv*(3)

[Hajimu UMEMOTO]

Hi,

I've added getserv{byname,byport,ent}_r for internal use within libc,
and made getserv{byname,byport,ent} thread-safe by using them.
You can get my patch from:

http://www.imasy.or.jp/~ume/FreeBSD/getserv-thread-safe-6-current-20050408.diff

Please review it.

Sincerely,

--
Hajimu UMEMOTO @ Internet Mutual Aid Society Yokohama, Japan
ume at mahoroba.org  ume@{,jp.}FreeBSD.org
http://www.imasy.org/~ume/