Changes to support building with _POSIX_SOURCE set to 199309L:
1. Add sys/_posix.h to handle those preprocessor defs that POSIX
says have effects when defined before including any header files;
2. Change POSIX4_VISIBLE back to _POSIX4_VISIBLE
3. Add _POSIX4_VISIBLE_HISTORICALLY for pre-existing BSD features now
defined in POSIX. These show up when:
_POSIX_SOURCE and _POSIX_C_SOURCE are not set or
_POSIX_C_SOURCE is set >= 199309L
and vanish when:
_POSIX_SOURCE is set or _POSIX_C_SOURCE is < 199309L.
4. Explain these in man 9 posix4;
5. Include _posix.h and conditionalize on new feature test.
- Completely recoded the ypmatch cache code. The old code could leak
memory: it would allow the cache to grow, but never
shrink. The new code imposes the following limits:
o The cache is capped at a limit of 5 entries.
o Each entry expires after five seconds, at which point
its slot is freed.
o If an insertion is to be done and all five slots
are filled, the oldest entry is forcibly expired
to release its slot.
Also, the cache is implemented on a per-binding basis rather than
having a global cache covering all bindings. This means that each
bound domain has its own 5 slot cache.
- Changed clntudp_create() to clntudp_bufcreate() so that the
xmit/recv message buffer sizes can be set explicitly. NIS transactions
are rarely much larger than 1024 bytes since YPMAXRECORD is 1024.
The defaults chosen by clntudb_create() are actually much larger
than needed. I set the xmit buffer to a little over 1024 and the
recv buffer to a little over 2048. This saves a few Kbytes for each
NIS binding.
- Add my name to the copyright. I think I've made enough changes to
this file to merit it. :)
Note: these changes should go into the 2.2.x branch, but I'm waiting
on feedback from a tester to see if the cache fixes solve the reported
memory leak problem.
fix a slight confusion about which draft of threads we are supporting.
this allows something as big and ugly as samba to be compiled with libc_r
and still work! our user-level pthreads seems amazingly robust!
implement mkdtemp
improve man page for mk*temp
use arc4random to seed extra XXX's randomly
Optionally warn of unsafe mktemp uses
From various commits by theo de raadt and Todd Miller.
Obtained from: OpenBSD
This should go into 2.2 after a testing period.
one group. Thanks to Dirk Froemberg for supplying a patch for this. I will
be closing out the PR and moving this to the 2.2.5 branch later: my login
sessions to freefall from Columbia are ridiculously spotty today.
PR: 5610
Submitted by: Dirk Froemberg <ibex@physik.TU-Berlin.DE>
into libc. This reduces the size of every dynamically linked
executable by 248 bytes, and it reduces the size of static executables
by a lesser amount. It also eliminates some global namespace
pollution.
With this change in place, the source for dlfcn.h should probably
be moved to "/usr/src/include". I'll save that for another day.
Compatibility note: Programs which use dlopen, if compiled on
systems with this change, will not run on systems with a libc from
prior to this change. Very few programs use dlopen, so I think
that is OK.
isn't a prerequisite, since it isn't required for the prototypes
and isn't always needed to call the functions (the address family
might be a variable).
and the pre-Lite2 vfsconf interfaces.
For getvfsent.c, just define _OLD_VFSCONF. This will give the
current default macro hacks in <sys/mount.h> when the default is
reversed. This is an intermediate step.
overwrites it. This actually showed up when running under an old
kernel when free() called the madvise() stub which set errno, causing
getcwd() to return EOPNOTSUPP instead of ERANGE.
