freebsd-src/lib/libc_r
Xin LI 8dcb56dc78 Provide more POSIX-complaint ttyname_r(3) interface[1], which is slightly
different from what has been offered in libc_r (the one spotted in the
original PR which is found in libthr has already been removed by David's
commit, which is rev. 1.44 of lib/libthr/thread/thr_private.h):
	- Use POSIX standard prototype for ttyname_r, which is,
		int ttyname_r(int, char *, size_t);
	  Instead of:
	  	char *ttyname_r(int, char *, size_t);
	  This is to conform IEEE Std 1003.1, 2004 Edition [1].
	- Since we need to use standard errno for return code, include
	  errno.h in ttyname.c
	- Update ttyname(3) implementation according to reflect the API
	  change.
	- Document new ttyname_r(3) behavior
	- Since we already make use of a thread local storage for
	  ttyname(3), remove the BUGS section.
	- Remove conflicting ttyname_r related declarations found in libc_r.

Hopefully this change should not have changed the API/ABI, as the ttyname_r
symbol was never introduced before the last unistd.h change which happens a
couple of days before.

[1] http://www.opengroup.org/onlinepubs/009695399/functions/ttyname.html

Requested by:	Tom McLaughlin <tmclaugh sdf lonestar org>
Through PR:	threads/76938
Patched by:	Craig Rodrigues <rodrigc crodrigues org> (with minor changes)
Prompted by:	mezz@
2005-05-13 16:27:30 +00:00
..
arch style cleanup: Remove duplicate $FreeBSD$ tags. 2004-02-10 20:45:28 +00:00
sys remove #ifdef _THREAD_SAFE 2003-01-24 01:46:30 +00:00
test Make this compile without warnings on 64-bit architectures: 2003-06-04 20:38:54 +00:00
uthread Provide more POSIX-complaint ttyname_r(3) interface[1], which is slightly 2005-05-13 16:27:30 +00:00
Makefile NODOCCOMPRESS -> NO_DOCCOMPRESS 2004-12-21 09:33:47 +00:00