buffersize is enforced strictly, this supplies sufficient entropy
payload to act as seed material.  Discourage general use of this
API, but lock down this function name as the go-to for userland
PRNG seeding.  Improve documentation.
ok miod matthew

I accepted that he's right (again) to seperate this out from heavy
sysctl API and this will simply a variety of things.  Functionname
is not used by anyone in the ports tree, so we guess we can use it.
Shocking that no application has a function called this.
ok matthew & others who pushed him to start this early on

ok millert

of size at least PATH_MAX.  pread(2), pwrite(2) and readlinkat(2)
also take the buffer and the bound.  OK theo.

them ftime(), gtty(), stty(), re_comp(), cuserid() and others.
Discussion and ongoing work to fix the ports tree from many, especially
naddy.
ok naddy
[There is a bit more cleanup possible after that, but this is considered
the current safe step]

moved them to unistd.h to match POSIX in 1995 but we never did.
The exception to this is getsubopt() which POSIX says should be in
stdlib.h.  The non-standard suboptarg extern remains in the BSD-only
section of stdlib.h.  Neither getsubopt() nor suboptarg belong in
unistd.h or getopt.h.  They were only there to allow us to protect
all the getopt() bits from being multiply defined.  OK guenther@

Use useconds_t in the ualarm() declaration.
Bump libstdc++ major to be sure there isn't ABI issues.
ok deraadt@ jca@ jmc@ millert@
ports testing by landry@

including CLOCK_{PROCESS,THREAD}_CPUTIME_ID constants and
{clock,pthread}_getcpuclockid() functions.
Worked out at t2k13 with help from tedu@ and matthew@ and testing by aja@
ok matthew@

ok guenther@

ok guenther, deraadt, jmc

ok millert@

to <unistd.h> and confstr(3) per POSIX 1003.1-2008
Change confstr(_CS_PATH) to operate directly instead of calling sysctl(3)
ports build tested by espie@

ok guenther millert kettenis

so that it can't get a signal while still running on the parent thread's
stack.  Also, pass in sizeof(struct __tfork) to provide forward compat
when more members are added.  This is an ABI change, so switch syscall
numbers and bump lib majors this time.
ok deraadt@ matthew@

from sys/unistd.h to unistd.h.
From Brad; ok millert and me

ok guenther, millert (and me); bulk build test by naddy

FreeBSD's implementation via Frank Denis, with various cleanups and
tweaks by me.
ok deraadt@, guenther@; discussions and tweaks from many others
jmc@ promises to help me further with the man pages in tree

Ok sthen@, millert@, dcoppa@

fail with errno set to ERANGE if not enough room is provided. Similar for
getlogin_r() so remove minbytes enforcement attribute.
ok kettenis@ guenther@ deraadt@ on getcwd, deraadt@ on getlogin_r.

fchmodat(2), fstatat(2), mkdirat(2), mkfifoat(2), mknodat(2),
faccessat(2), fchownat(2), linkat(2), readlinkat(2), renameat(2),
symlinkat(2), unlinkat(2), utimensat(2), futimens(2), and
fdopendir(3).
"Minor" libc bump.
Tested in a bulk build by naddy@
Much help from guenther@, thib@, tedu@, oga@, and others.
ok deraadt@, naddy@

of NULL was incorrect for c++ compilers that aren't
gcc (or pretend to be gcc like clang).
ok miod@

Kernel and bootblocks still use the old 0L value until all the NULL abuses
in the code are fixed.

now that we support all the _r functions required by POSIX 1003.1-2001.
Also define _POSIX_REENTRANT_FUNCTIONS.  OK kurt@ deraadt@

is the correct place for them and nothing gets them from here in
base/xenocara/ports. no objection millert@ okay kettenis@

brk(2) returns an int value not a void *. brk(2) returns 0 upon success not
a pointer to the new end of memory. okay millert@, kettenis@, deraadt@

okay theo

in sys/cdefs.h) instead of _FOO_SOURCE.  Also fix several namespace
pollution issues, including the byte order defines.  OK deraadt@

userland-visible sys/select.h.  Consistent with what Net and Free do.
OK deraadt@, tested with full ports build by naddy@.

should take intptr_t, not int, but we don't presently have intptr_t
available from unistd.h.  OK marco@

explicit about mktemp(3) in the man page.

ok deraadt@

You must have an up-to-date gcc for this!
deraadt@ ok

rescinded 22 July 1999.  Proofed by myself and Theo.

anyway).
ok deraadt@ weingart@

getopt_long_only().  At some point this should replace the BSD
getopt(3) but we are not there yet.
While I am here add protection from the multiple getopt() definitions
due to conflicting standards.

functions.

OK mickey@ and discussed with deraadt@

did NOT approve those for commit.  why did mickey feel he was ok to go
commiting a set of diffs which had not been passed around and tested by people?
we don't know.  mickey, have you got something to say for yourself?

to give them a larger timeslot to do that.
Requested by deraadt@ and various people on icb or vocally.