bin/60477: need thread safe gethostent() and getservent()

[Alfred Perlstein]

>Number:         60477
>Category:       bin
>Synopsis:       need thread safe gethostent() and getservent()
>Confidential:   no
>Severity:       critical
>Priority:       high
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Sun Dec 21 12:30:11 PST 2003
>Closed-Date:
>Last-Modified:
>Originator:     Alfred Perlstein
>Release:        FreeBSD 4.9-STABLE i386
>Organization:
RED, Inc.
>Environment:
System: FreeBSD freefall.freebsd.org 4.9-STABLE FreeBSD 4.9-STABLE #10: Wed Dec 10 19:46:23 PST 2003 kensmith at freefall.freebsd.org:/c/src/sys/compile/FREEFALL i386


>Description:
	Hard to write thread safe networking apps without reentrant
	versions of these function.
>How-To-Repeat:
	
>Fix:

	Use thread local storage to make these safe or...

	Implement gethostent_r and getservent_r, perferably from the
	http://publib16.boulder.ibm.com/pseries/en_US/libs/commtrf2/gethostent_r.htm specification, although
	or
	http://www.qnx.com/developer/docs/qnx_6.1_docs/neutrino/lib_ref/g/gethostent_r.html
	I feel that the one that Solaris and glibC offer are technically useless.

	I think that making them thread safe by using thread local data
	might also work reasonably well.

	
>Release-Note:
>Audit-Trail:
>Unformatted: