Commit Graph

144 Commits

Author SHA1 Message Date
Ed Schouten
de1d269583 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 Schouten
2fed5061db 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
Pedro F. Giffuni
968c0b406d 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
Pedro F. Giffuni
75a5de5a40 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
Andriy Voskoboinyk
2cf5e9365d 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
Pedro F. Giffuni
513004a23d 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
Bryan Drewery
15719ec499 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
Ed Maste
c38dac681d 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
Kurt Lidl
06feb971e7 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
Pedro F. Giffuni
e1ea782729 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
Pedro F. Giffuni
3579f3d9ea db(3): Fix aliasing warnings from modern GCC.
Obtained from:	NetBSD (CVS Rev. 1.20)
2016-02-24 16:52:03 +00:00
David Malone
efb7dae251 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 Davis
45308eec4a Use intptr_t note ptrdiff_t when storing flags in the bottom bits of
pointers.

Obtained from:	CheriBSD (e3a69027cc)
Sponsored by:	DARPA, AFRL
2016-01-29 01:22:12 +00:00
Craig Rodrigues
d9556fb15d Use ANSI C prototypes. Eliminates -Wold-style-definition warnings. 2015-09-20 20:55:00 +00:00
Jilles Tjoelker
636b8d937e db/recno: Open with close-on-exec like btree and hash do. 2015-09-13 17:17:52 +00:00
Konstantin Belousov
bd6060a1c6 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
Pedro F. Giffuni
1b81d86525 Drop some unnecessary casts.
Reported by:	Clang static analyzer
Obtained from:	NetBSD
2015-05-18 16:28:13 +00:00
Pedro F. Giffuni
a9a4a706eb 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
Jeremie Le Hen
dd3d4ecb61 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 Moolenaar
8876613dc5 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 Tjoelker
89521d4108 db: Use O_CLOEXEC instead of separate fcntl() call. 2013-08-13 19:20:50 +00:00
Jilles Tjoelker
46d71747f6 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 Schouten
6b99842ada 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
Ben Laurie
5f301949ef Fix clang warnings.
Approved by:	philip (mentor)
2011-06-18 13:56:33 +00:00
Xin LI
25879947d6 The flags argument of mpool_get() is meaningful, document it.
MFC after:	2 weeks
2011-06-18 00:10:21 +00:00
Glen Barber
416d1e6f23 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
Glen Barber
1569ab8c49 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
Andriy Gapon
f3c733e82b 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
Andriy Gapon
983419fe1e 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
Xin LI
4f0d3f44e0 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
Xin LI
47f8598e50 Update SCCS IDs for Berkeley DB 1.86 merge. 2009-06-24 01:15:10 +00:00
Xin LI
fc35a18481 style: operators should appear at the line end if we have to wrap. 2009-06-24 01:14:17 +00:00
Xin LI
e8ee08bad8 Add some casts to silence compiler warning about signedness. 2009-03-28 07:44:08 +00:00
Xin LI
9fc74a871c 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
Xin LI
73590c342a Allow O_SYNC and O_NOFOLLOW flags in dbopen().
Obtained from:	OpenBSD
2009-03-28 07:26:00 +00:00
Xin LI
6c90d46ee5 Plug memory leaks and a potential NULL dereference.
Obtained from:	OpenBSD
2009-03-28 07:20:39 +00:00
Xin LI
edcdc752ec 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
Xin LI
a47fc82519 - 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
Xin LI
4524c90576 Avoid NULL deference which causes DEBUG1 to crash, not to print useful
information.

Obtained from:	OpenBSD
2009-03-28 06:40:48 +00:00
Xin LI
89bc741f77 - 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
Xin LI
213bceeead Fix a crash when iterating over a hash and removing its elements.
Obtained from:	OpenBSD
2009-03-28 06:30:43 +00:00
Xin LI
3130c353f8 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
Xin LI
b115f257ba Diff reduce against OpenBSD, no functional change. 2009-03-28 06:23:10 +00:00
Xin LI
a53e89e3a1 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
Xin LI
d3b2afad1b Use pread(2) and pwrite(2) instead of lseek(2) + read(2) / write(2).
Obtained from:	NetBSD via OpenBSD
2009-03-28 06:05:53 +00:00
Xin LI
02d7f710b8 db/btree/bt_open.c: check return value of snprintf() and return value
if the result is truncated.

db/hash/hash_page.c: use the same way to create temporary file as
bt_open.c; check snprintf() return value.

Obtained from:	OpenBSD
2009-03-28 05:57:27 +00:00
Xin LI
f60486b3ce Several signed/unsigned warning fixes. 2009-03-28 05:45:29 +00:00
Xin LI
c9f30aaaf7 When allocating memory, zero out them if we don't intend to overwrite them
all; before freeing memory, zero out them before we release it as free
heap.  This will eliminate some potential information leak issue.

While there, remove the PURIFY option.  There is a slight difference between
the new behavior and the old -DPURIFY behavior, with the latter initializes
memory with 0xff's.  The difference between old and new approach does not
generate observable difference.

Obtained from:	OpenBSD (partly).
2009-03-28 04:00:46 +00:00
Xin LI
6c0af71bdc Save errno before calling _close(), which may clear it.
Obtained from:	OpenBSD
2009-03-23 23:43:07 +00:00
Xin LI
7efabbb915 use more proper format string.
Obtained from:	NetBSD via OpenBSD
2009-03-23 23:22:09 +00:00