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7a0789b485
freebsd-dev/lib/libc
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David Schultz 7a0789b485 Further reduce diffs with OpenBSD's arc4random. The main functional 
change here is to ensure that when a process forks after arc4random
is seeded, the parent and child don't observe the same random sequence.
OpenBSD's fix introduces some additional overhead in the form of a
getpid() call.  This could be improved upon, e.g., by setting a flag
in fork(), if it proves to be a problem.

This was discussed with secteam (simon, csjp, rwatson) in 2008, shortly
prior to my going out of town and forgetting all about it.  The conclusion
was that the problem with forks is worrisome, but it doesn't appear to
have introduced an actual vulnerability for any known programs.

The only significant remaining difference between our arc4random and
OpenBSD's is in how we seed the generator in arc4_stir().
2011-11-15 05:49:24 +00:00
..
amd64 Make sure that stack is 16-byte aligned before calling a function, 2011-11-02 18:06:22 +00:00
arm Replace a proliferation of buggy MD implementations of modf() with a 2011-10-21 06:40:36 +00:00
compat-43 Powerpc is special here. powerpc and powerpc64 use different ABIs, so 2010-08-24 20:54:43 +00:00
db Fix clang warnings. 2011-06-18 13:56:33 +00:00
gdtoa Unbreak the build for arm and powerpc. 2008-04-12 14:53:52 +00:00
gen Further reduce diffs with OpenBSD's arc4random. The main functional 2011-11-15 05:49:24 +00:00
gmon Provide 64-bit PowerPC support in libc. 2010-07-10 14:45:03 +00:00
i386 Despite official i386 ABI does not mandate any stack alignment besides 2011-11-02 18:08:30 +00:00
ia64 Replace a proliferation of buggy MD implementations of modf() with a 2011-10-21 06:40:36 +00:00
iconv - Fix a trivial bug in iconv. When there is no space to perform the 2011-09-19 22:49:36 +00:00
include Introduce a non-portable function pthread_getthreadid_np(3) to retrieve 2011-02-07 21:26:46 +00:00
inet Merge the resolver part of BIND 9.4.3 into HEAD. 2008-12-14 19:39:53 +00:00
isc Merge BIND 9.4.1 into main chunk. 2007-06-03 17:20:27 +00:00
locale Fix grammar. 2011-09-27 17:54:10 +00:00
mips Replace a proliferation of buggy MD implementations of modf() with a 2011-10-21 06:40:36 +00:00
nameser This commit was generated by cvs2svn to compensate for changes in r174223, 2007-12-03 15:07:58 +00:00
net Fix whitespace inconsistencies found in homegrown Symbol.maps. 2011-10-07 15:05:24 +00:00
nls Merge from English r198040: add C message catalogue entries for newer 2010-06-20 06:52:10 +00:00
posix1e Make it possible to use permission sets (full_set, modify_set, read_set 2011-04-09 07:42:25 +00:00
powerpc Replace a proliferation of buggy MD implementations of modf() with a 2011-10-21 06:40:36 +00:00
powerpc64 Replace a proliferation of buggy MD implementations of modf() with a 2011-10-21 06:40:36 +00:00
quad Powerpc is special here. powerpc and powerpc64 use different ABIs, so 2010-08-24 20:54:43 +00:00
regex Converting int to wint_t leads to broekn comparison of raw char 2011-11-11 01:35:07 +00:00
resolv Add an option to enforce strict RFC 1034 compliance. 2009-05-29 07:34:54 +00:00
rpc Fix a bug in the userland rpc library, where it would use a 2011-04-10 14:11:07 +00:00
softfloat Powerpc is special here. powerpc and powerpc64 use different ABIs, so 2010-08-24 20:54:43 +00:00
sparc64 Replace a proliferation of buggy MD implementations of modf() with a 2011-10-21 06:40:36 +00:00
stdio Add support for the 'x' mode option in fopen() as specified in the C1X 2011-10-21 06:35:58 +00:00
stdlib Fix a warning emitted by Clang. 2011-11-04 19:56:34 +00:00
stdtime strptime(3) confused July with June with the fr_FR locale. 2010-05-09 22:01:35 +00:00
string Fix prototype for ffsll(3) and fls(3). 2011-05-03 19:33:06 +00:00
sys Document that flock can return ENOLCK 2011-11-10 06:20:18 +00:00
uuid mdoc: drop redundant .Pp and .LP calls 2010-10-08 12:40:16 +00:00
xdr Add a HISTORY section 2011-07-10 06:57:00 +00:00
yp Remove duplicate "in". 2011-03-01 11:47:51 +00:00
Makefile Add the BSD-licensed Citrus iconv to the base system with default off 2011-02-25 00:04:39 +00:00
Versions.def Add a FBSD_1.3 namespace for FreeBSD 10. 2011-10-10 15:42:33 +00:00