151 Commits

Author SHA1 Message Date
delphij
f29950c935 Remove "All rights reserved" from my files.
See r333391 for the rationale.

MFC after:	1 week
2018-05-10 06:41:08 +00:00
pfg
9014a6e40c libc: further adoption of SPDX licensing ID tags.
Mainly focus on files that use BSD 2-Clause license, however the tool I
was using mis-identified many licenses so this was mostly a manual - error
prone - task.

The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for automated tools to detect and summarize well known
opensource licenses. We are gradually adopting the specification, noting
that the tags are considered only advisory and do not, in any way,
superceed or replace the license texts.
2017-11-25 17:12:48 +00:00
pfg
872b698bd4 General further adoption of SPDX licensing ID tags.
Mainly focus on files that use BSD 3-Clause license.

The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for automated tools to detect and summarize well known
opensource licenses. We are gradually adopting the specification, noting
that the tags are considered only advisory and do not, in any way,
superceed or replace the license texts.

Special thanks to Wind River for providing access to "The Duke of
Highlander" tool: an older (2014) run over FreeBSD tree was useful as a
starting point.
2017-11-20 19:49:47 +00:00
imp
7e6cabd06e Renumber copyright clause 4
Renumber cluase 4 to 3, per what everybody else did when BSD granted
them permission to remove clause 3. My insistance on keeping the same
numbering for legal reasons is too pedantic, so give up on that point.

Submitted by:	Jan Schaumann <jschauma@stevens.edu>
Pull Request:	https://github.com/freebsd/freebsd/pull/96
2017-02-28 23:42:47 +00:00
pfg
f12047876f hash(3): protect in-memory page when using cross-endianness.
When writing out pages in the "other endian" format, make a copy
instead of trashing the in-memory one.

Obtained from:	NetBSD (CVS rev. 1.29)
2016-09-26 16:06:50 +00:00
pfg
30ddea7d38 btree(3): don't shortcut closing if the metadata is dirty.
Obtained from:	NetBSD (from krb5 tree)

MFC after:	3 weeks
2016-09-26 02:29:28 +00:00
ed
7c40d543e8 Fix prototype of dbm_open().
The last argument of dbm_open() should be a mode_t according to POSIX;
not an int.

Reviewed by:	pfg, kib
Differential Revision:	https://reviews.freebsd.org/D6650
2016-05-31 18:32:57 +00:00
ed
12de9c628b Let dbm's datum::dptr use the right type.
According to POSIX, it should use void *, not char *. Unfortunately, the
dsize field also has the wrong type. It should be size_t. I'm not going
to change that, as that will break the ABI.

Reviewed by:	pfg
Differential Revision:	https://reviews.freebsd.org/D6647
2016-05-30 16:52:23 +00:00
pfg
4f3667123f libc: make more use of the howmany() macro when available.
We have a howmany() macro in the <sys/param.h> header that is
convenient to re-use as it makes things easier to read.
2016-04-26 01:17:05 +00:00
pfg
7ce919789a libc: use our roundup2/rounddown2() macros when param.h is available.
rounddown2 tends to produce longer lines than the original code but
still it makes the code more readable.
2016-04-20 01:21:39 +00:00
avos
f0171d33b4 libc: do not include <sys/types.h> where <sys/param.h> was already included
According to style(9):
> normally, include <sys/types.h> OR <sys/param.h>, but not both.
(<sys/param.h> already includes <sys/types.h> when LOCORE is not defined).
2016-04-18 21:05:15 +00:00
pfg
6e91d78151 libc: replace 0 with NULL for pointers.
While here also cleanup some surrounding code; particularly
drop some malloc() casts.

Found with devel/coccinelle.

Reviewed by:	bde (previous version - all new bugs are mine)
2016-04-10 19:33:58 +00:00
bdrewery
3261994ba6 Follow-up r295924: Only sync hash-based db files open for writing when closing.
This fixes a major performance regression when reading db files such as
the pw database during a 'pkg install'.

MFC after:	1 week
Tested by:	bapt
Reviewed by:	bapt
Sponsored by:	EMC / Isilon Storage Division
Differential Revision:	https://reviews.freebsd.org/D5868
2016-04-06 22:38:50 +00:00
emaste
354e386908 libc: don't build compat functions if building WITHOUT_SYMVER
WITHOUT_SYMVER necessarily implies building a system without symver
backwards compatability.

Sponsored by:	The FreeBSD Foundation
2016-03-15 19:26:32 +00:00
lidl
297e6725d8 Allow O_CLOEXEC to be used in dbopen() flags
There is also a small portability crutch, also present in NetBSD,
to allow compiling on a system that doesn't define O_CLOEXEC.

Approved by:	rpaulo (mentor)
Obtained from:	NetBSD (r1.17, r1.18)
Differential Revision:	https://reviews.freebsd.org/D5549
2016-03-06 04:38:08 +00:00
pfg
78f743cc52 db(3): Fix aliasing warnings from modern GCC.
While here also drop a malloc cast.

Obtained from:	NetBSD (CVS Rev. 1.18 - 1.20)
2016-02-24 17:14:11 +00:00
pfg
b41bc87bfc db(3): Fix aliasing warnings from modern GCC.
Obtained from:	NetBSD (CVS Rev. 1.20)
2016-02-24 16:52:03 +00:00
dwmalone
3d569ff3be If we close or sync a hash-based db file, make sure to call fsync to
make sure the changes are on disk. The people at pfSense noticed that
it didn't always make it to the disk soon enough with soft updates.

Differential Revision:	https://reviews.freebsd.org/D5186
Reviewed by:	garga, vangyzen, bapt, se
MFC after:	1 week
2016-02-23 15:21:13 +00:00
brooks
694bb1bf14 Use intptr_t note ptrdiff_t when storing flags in the bottom bits of
pointers.

Obtained from:	CheriBSD (e3a69027cc5a384431156d61c90d4304387a9b9d)
Sponsored by:	DARPA, AFRL
2016-01-29 01:22:12 +00:00
rodrigc
70a6c8c892 Use ANSI C prototypes. Eliminates -Wold-style-definition warnings. 2015-09-20 20:55:00 +00:00
jilles
5f1339c5cc db/recno: Open with close-on-exec like btree and hash do. 2015-09-13 17:17:52 +00:00
kib
146b187d13 Switch libc from using _sig{procmask,action,suspend} symbols, which
are aliases for the syscall stubs and are plt-interposed, to the
libc-private aliases of internally interposed sigprocmask() etc.

Since e.g. _sigaction is not interposed by libthr, calling signal()
removes thr_sighandler() from the handler slot etc.  The result was
breaking signal semantic and rtld locking.

The added __libc_sigprocmask and other symbols are hidden, they are
not exported and cannot be called through PLT.  The setjmp/longjmp
functions for x86 were changed to use direct calls, and since
PIC_PROLOGUE only needed for functional PLT indirection on i386, it is
removed as well.

The PowerPC bug of calling the syscall directly in the setjmp/longjmp
implementation is kept as is.

Reported by:	Pete French <petefrench@ingresso.co.uk>
Tested by:	Michiel Boland <boland37@xs4all.nl>
Reviewed by:	jilles (previous version)
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
2015-08-29 14:25:01 +00:00
pfg
bcef2ac230 Drop some unnecessary casts.
Reported by:	Clang static analyzer
Obtained from:	NetBSD
2015-05-18 16:28:13 +00:00
pfg
579c83b67c dbm_delete(3) correct man page to match current behaviour.
"The dbm_store() and dbm_delete() functions shall return 0 when they
succeed and a negative value when they fail."

Reference:
http://pubs.opengroup.org/onlinepubs/9699919799/functions/dbm_clearerr.html

PR:		42422
Suggested by:	delphij
MFC after:	3 days
2015-02-20 01:31:10 +00:00
jlh
f274b4a2ee Let __bt_put() accept the R_SETCURSOR flag, as stated in the dbopen(3) manpage.
While here, update the comment above with all the accepted flags.

Reviewed by:	silence on hackers@
MFC after:	2 weeks
2014-03-06 07:44:45 +00:00
marcel
99c9726a00 Replace use of ${.CURDIR} by ${LIBC_SRCTOP} and define ${LIBC_SRCTOP}
if not already defined. This allows building libc from outside of
lib/libc using a reach-over makefile.

A typical use-case is to build a standard ILP32 version and a COMPAT32
version in a single iteration by building the COMPAT32 version using a
reach-over makefile.

Obtained from:	Juniper Networks, Inc.
2014-03-04 02:19:39 +00:00
jilles
9381206c83 db: Use O_CLOEXEC instead of separate fcntl() call. 2013-08-13 19:20:50 +00:00
jilles
3bf0adb320 db/hash: Use O_CLOEXEC instead of separate fcntl() call.
In particular, a hash db is used by getpwnam() and getpwuid().

MFC after:	1 week
2013-08-11 15:38:48 +00:00
ed
23524b572c Globally replace u_int*_t from (non-contributed) man pages.
The reasoning behind this, is that if we are consistent in our
documentation about the uint*_t stuff, people will be less tempted to
write new code that uses the non-standard types.

I am not going to bump the man page dates, as these changes can be
considered style nits. The meaning of the man pages is unaffected.

MFC after:	1 month
2012-02-12 18:29:56 +00:00
benl
2071e3510a Fix clang warnings.
Approved by:	philip (mentor)
2011-06-18 13:56:33 +00:00
delphij
1a3b8a613a The flags argument of mpool_get() is meaningful, document it.
MFC after:	2 weeks
2011-06-18 00:10:21 +00:00
gjb
b008f7b64b Bump dates in dbopen(3) and cpuset_getaffinity(2) from r212441 and
r212438, repectively.

Approved by:	keramida (mentor)
MFC after:	1 week
2010-09-12 14:04:05 +00:00
gjb
92f51406df Note O_SYNC and O_NOFOLLOW flags in dbopen(3) since r190497.
PR:		150030
Submitted by:	Janne Snabb snabb at epipe com
Patch by:	Janne Snabb
Approved by:	keramida (mentor)
MFC after:	1 week
2010-09-10 23:24:55 +00:00
avg
f7959704e8 libc/db/hash: cap auto-tuned block size with a value that actually works
This fix mostly matters after r206129 that made it possible for
st_blksize to be greater than 4K.  For this reason, this change should
be MFC-ed before r206129.
Also, it seems that all FreeBSD uitlities that use db(3) hash databases
and create new databases in files, specify their own block size value
and thus do not depend on block size autotuning.

PR:		bin/144446
Submitted by:	Peter Jeremy <peterjeremy@acm.org>
MFC after:	5 days
2010-04-05 10:12:21 +00:00
avg
75f42004bf hash.3: fix a factual mistake in the man page
PR:		bin/144446
Submitted by:	Peter Jeremy <peterjeremy@acm.org>
MFC after:	3 days
2010-04-05 10:01:53 +00:00
delphij
10dee87cc0 Consider flag == 0 as the same of flag == R_NEXT. This change will restore
a historical behavior that has been changed by revision 190491, and has seen
to break exim.
2009-08-24 23:44:07 +00:00
delphij
23ecae6674 Update SCCS IDs for Berkeley DB 1.86 merge. 2009-06-24 01:15:10 +00:00
delphij
f58c02a241 style: operators should appear at the line end if we have to wrap. 2009-06-24 01:14:17 +00:00
delphij
fc0a0dc5f6 Add some casts to silence compiler warning about signedness. 2009-03-28 07:44:08 +00:00
delphij
1db7e98746 Minor changes from Berkeley DB 1.86 and further improvements from OpenBSD.
This does not include the new hash routines since they will cause problems
when reading old hash files.

Since mpool(3) has been changed, provide a compatibility shim for older
binaries.

Obtained from:	OpenBSD
2009-03-28 07:31:02 +00:00
delphij
2ca1d8e1e9 Allow O_SYNC and O_NOFOLLOW flags in dbopen().
Obtained from:	OpenBSD
2009-03-28 07:26:00 +00:00
delphij
b4ced14429 Plug memory leaks and a potential NULL dereference.
Obtained from:	OpenBSD
2009-03-28 07:20:39 +00:00
delphij
67cfc8aca6 Simplify the logic when determining whether to zero out a db file to after
open().  The previous logic only initializes the database when O_CREAT is
set, but as long as we can open and write the database, and the database
is empty, we should initialize it anyway.

Obtained from:	OpenBSD
2009-03-28 07:09:51 +00:00
delphij
643b09b140 - If (keysize+datasize)%(bsize=14)==0, insertion of a `big key' would cause
an invariant (actually, an ugly hack) to fail, and all Hell would break
   loose.

   When deleting a big key, the offset of an empty page should be bsize, not
   bsize-1; otherwise an insertion into the empty page will cause the new key to
   be elongated by 1 byte.

   Make the packing more dense in a couple of cases.

 - fix NULL dereference exposed on big bsize values;

Obtained from:	NetBSD via OpenBSD
2009-03-28 06:47:05 +00:00
delphij
e486185356 Avoid NULL deference which causes DEBUG1 to crash, not to print useful
information.

Obtained from:	OpenBSD
2009-03-28 06:40:48 +00:00
delphij
8d5f207dd1 - Avoid overwriting the cursor page when the cursor page becomes the
LRU page.
 - Fix for sequential retrieval failure when using large key/data pairs.

Obtained from:	OpenBSD
2009-03-28 06:38:31 +00:00
delphij
be23f69f40 Fix a crash when iterating over a hash and removing its elements.
Obtained from:	OpenBSD
2009-03-28 06:30:43 +00:00
delphij
7a713ce8b4 Only squeeze a short key/value pair onto a page with other complete key/value
pairs, not onto a page containing the end of a big pair.

Obtained from:	NetBSD via OpenBSD
2009-03-28 06:25:33 +00:00
delphij
1f25699513 Diff reduce against OpenBSD, no functional change. 2009-03-28 06:23:10 +00:00
delphij
b0050a5c17 Return meaningful errno in overflow case; print error message to stderr
in one more case.

Obtained from:	NetBSD via OpenBSD
2009-03-28 06:12:39 +00:00