Commit Graph

6402 Commits

Author SHA1 Message Date
Andrey A. Chernov
dcdafd0e92 a) Use strcoll() in opendir() and alphasort() as POSIX 2008 requires.
It also matches now how our 'ls' works for years.

b) Remove comment expressed 2 fears:
 1) One just simple describe how strcoll() works in _any_ context,
 not for directories only. Are we plan to remove strcoll() from everything
 just because it is little more complex than strcmp()? I doubt, and
 directories give nothing different here. Moreover, strcoll() used
 in 'ls' for years and nobody complaints yet.

 2) Plain wrong statement about undefined strcoll() behaviour. strcoll()
 always gives predictable results, falling back to strcmp() on any
 trouble, see strcoll(3).

No objections from -current list discussion.
2010-01-18 10:17:51 +00:00
Ed Schouten
98c63a48e9 Perform several small cleanups to the utmpx code.
- Massively reduce BSS usage. Let futx_to_utx() dynamically allocate the
  structure. There is only a very small amount of applications out there
  that needs to use the utmpx database. Wasting 1 KB on unused
  structures makes little sense.

- Just let getutxid() search for matching ut_id's for any *PROCESS-type.
  This makes the code a bit more future-proof.

- Fix a POSIX-mistake: when reading POSIX and the OpenSolaris
  implementation, getutxline() must return USER_PROCESS and
  LOGIN_PROCESS records whose ut_lines match. When reading POSIX, it
  seems LOGIN_PROCESS should not use ut_line at the first place. I have
  reported this issue.
2010-01-17 21:40:05 +00:00
Ed Schouten
e35a88d3a6 Add forgotten break; keyword to getutxid().
We should not fall through to the ut_id comparison. Only ut_type should
be compared when using OLD_TIME, NEW_TIME, BOOT_TIME or SHUTDOWN_TIME.
2010-01-17 21:00:29 +00:00
Ed Schouten
79a7dbf111 Simplify ttyslot(3).
After comparing how other systems deal with utmp/utmpx, I noticed many
systems don't even care about ttyslot(3) anymore, since utmpx doesn't
use TTY slots anyway. We don't provide any tools to access old utmp
files anymore, so there is no use in letting applications write to a
proper offset within the utmp file.

Just let ttyslot(3) always return 0, which seems to be the default
behaviour on operating systems like Linux as well.
2010-01-17 15:43:14 +00:00
Ed Schouten
023b02dea7 Unexpose the old uname(3) function.
Nowadays uname(3) is an inline function around __xuname(3). Prevent
linkage of new binaries against this compatibility function, similar to
what I did with ttyslot(3).
2010-01-16 17:05:27 +00:00
David Xu
764ce7ce7d Also call sem_module_init in sem_close to initialize mutex
with some attributes.
2010-01-15 01:19:58 +00:00
Ed Schouten
5ab7f1fc40 Add wtmpcvt(1).
This utility allows users to convert their wtmp databases to the new
format. It makes no sense for users to keep their wtmp log files if they
are unable to view them.

It basically copies ut_line into ut_id as well. This makes it possible
for last(1) and ac(8) to match login records with their corresponding
logout record.
2010-01-14 20:58:45 +00:00
Ed Schouten
c068466245 Remove ttyslot from Symbol.map anyway.
Requested by:	kan
2010-01-14 15:20:46 +00:00
Ed Schouten
6386f4da2a Unbreak pututxline() on 32-bit architectures.
I forgot to cast the size_t's back to off_t before negating them,
causing all sorts of artifacts where the log files would grow to 2^32 -
197 bytes.

Reported by:	ume
2010-01-14 15:20:09 +00:00
Ed Schouten
d496b9d0d4 Revert the change to Symbol.map, made in r202274.
Even though we use __sym_compat(), we should list the symbol in
Symbol.map.

ttyslot() is now listed as follows, which seems to do the right thing:

| Symbol table '.dynsym' contains 2755 entries:
|    Num:    Value          Size Type    Bind   Vis      Ndx Name
|    613: 00000000000477b0   121 FUNC    GLOBAL DEFAULT   10 ttyslot@FBSD_1.0

Reported by:	kib
2010-01-14 10:00:01 +00:00
Ed Schouten
7bc9f25fd0 Don't use fseeko() to obtain the file offset.
I was a bit confused with lseek(), which returns the new offset. We
should ftello() to obtain it using stdio.
2010-01-14 08:08:55 +00:00
Ed Schouten
9457bcdc60 Add two changes that should have gone into commit r202274.
Phase out ttyslot(3).

  The ttyslot() function was originally part for SUSv1, marked LEGACY in
  SUSv2 and removed later on. This function only makes sense when using
  utmp(5), because it was used to determine the offset of the record for
  the controlling TTY. It makes little sense to keep it here, because the
  new utmpx file format doesn't index based on TTY slots.
2010-01-14 05:37:43 +00:00
Ed Schouten
88b69f52ee Phase out ttyslot(3).
The ttyslot() function was originally part for SUSv1, marked LEGACY in
SUSv2 and removed later on. This function only makes sense when using
utmp(5), because it was used to determine the offset of the record for
the controlling TTY. It makes little sense to keep it here, because the
new utmpx file format doesn't index based on TTY slots.
2010-01-14 05:35:32 +00:00
Ed Schouten
a627ac61ab Implement <utmpx.h>.
The utmpx interface is the standardized interface of the user accounting
database. The standard only defines a subset of the functions that were
present in System V-like systems.

I'd like to highlight some of the traits my implementation has:

- The standard allows the on-disk format to be different than the
  in-memory representation (struct utmpx). Most operating systems don't
  do this, but we do. This allows us to keep our ABI more stable, while
  giving us the opportunity to modify the on-disk format. It also allows
  us to use a common file format across different architectures (i.e.
  byte ordering).

- Our implementation of pututxline() also updates wtmp and lastlog (now
  called utx.log and utx.lastlogin). This means the databases are more
  likely to be in sync.

- Care must be taken that our implementation discard any fields that are
  not applicable. For example, our DEAD_PROCESS records do not hold a
  TTY name. Just a time stamp, a record identifier and a process
  identifier. It also guarantees that strings (ut_host, ut_line and
  ut_user) are null terminated. ut_id is obviously not null terminated,
  because it's not a string.

- The API and its behaviour should be conformant to POSIX, but there may
  be things that slightly deviate from the standard. This implementation
  uses separate file descriptors when writing to the log files. It also
  doesn't use getutxid() to search for a field to overwrite. It uses an
  allocation strategy similar to getutxid(), but prevents DEAD_PROCESS
  records from accumulating.

Make sure libulog doesn't overwrite the manpages shipped with our C
library. Also keep the symbol list in Symbol.map sorted.

I'll bump __FreeBSD_version later this evening. I first want to convert
everything to <utmpx.h> and get rid of <utmp.h>.
2010-01-13 17:29:55 +00:00
David Xu
41e160536a Return SEM_FAILED instead of NULL, though there are same, but the
SEM_FAILED is more suitable name.
In function, sem_close(), always set errno on error.
2010-01-13 08:53:23 +00:00
Christian Brueffer
a47698f8d6 Miscellaneous mdoc, spelling and inconsistency fixes.
PR:		142573, 142576 (mostly)
Submitted by:	brucec
MFC after:	1 week
2010-01-12 21:45:03 +00:00
David Xu
7bf27b2dde Update manuals of sem_open and sem_init.
Submitted by:	ru
2010-01-12 01:30:05 +00:00
Colin Percival
c6a96a8441 Give a less silly response to a silly request.
Prior to this commit, fread/fwrite calls with size * nmemb > SIZE_MAX
were handled by reading or writing (size_t)(size * nmemb) bytes; for
example, on 32-bit platforms, fread(ptr, 641, 6700417, f) would read 1
byte and indicate that the requested 6700417 blocks had been read.

This commit adds a check for such integer overflows, and treats them as
if an overly large request was passed to read/write; i.e., it sets errno
to EINVAL, sets the error indicator on the file, and returns a short
object count (0, to be specific).

The overflow check involves an integer division, so as a performance
optimization we check first to see if both size and nmemb are less than
2^16; if they are, no overflow is possible and we avoid the division.
We assume here that size_t is at least 32 bits; this appears to be true
on all platforms FreeBSD supports.

Although this commit fixes an integer overflow, it is not likely to have
any security implications, since any program which would be affected by
this bug fix is quite clearly already very confused.

Reviewed by:	kib
MFC after:	1 month
2010-01-10 14:30:30 +00:00
Brooks Davis
9d8e1a8300 Use the correct types to store uids and gids in the credential cache. 2010-01-09 23:36:51 +00:00
Xin LI
777f8cebf3 Add a set of manual pages for pthread[_attr]_[sg]etaffinity(3).
Reviewed by:	davidxu
MFC after:	2 weeks
2010-01-09 12:31:11 +00:00
David Xu
a455039e3a Update manual for sem_init and sem_open, restrictions of shared semaphore
and 14 characters in name length no longer exist.

Reviewed by:	deischen@
2010-01-09 05:40:46 +00:00
Warner Losh
52e0ea7a0d Merge r195030 from project/mips to head by hand
r195030 | gonzo | 2009-06-25 19:27:31 -0600 (Thu, 25 Jun 2009) | 4 lines
- Switch to libc softfloat from libgcc implementation. The problem
    with latter is that it is not complete, fpsetXXX/fpgetXXX
    functions are missing.
2010-01-09 00:01:35 +00:00
Warner Losh
87e925fb53 Merge r197800 from projects/mips to head by hand:
r197800 | gonzo | 2009-10-06 00:35:52 -0600 (Tue, 06 Oct 2009) | 3 lines
- curbrk variable for sbrk and brk should be the same
- Add correct variable names to Symbol.map
2010-01-08 23:59:04 +00:00
Warner Losh
9cd8780a69 Merge r195025 from projects/mips to head by hand:
r195025 | gonzo | 2009-06-25 19:01:50 -0600 (Thu, 25 Jun 2009) | 4 lines
- Move fpgetXXX.c/fpsetXXX.c sources to hardfloat subdir/
    to prevenmt them from being mixed up with lib/libc/softfloat
    files with the same names
2010-01-08 23:50:39 +00:00
Christian Brueffer
37dc3d28cb Remove unnecessary quoting and markup, add missing punctuation.
PR:		140494
Submitted by:	Jeremy Huddleston <jeremyhu@apple.com>, bde
MFC after:	1 week
2010-01-08 22:02:42 +00:00
Konstantin Belousov
4319da1319 Further fix grammar.
Suggested by:	alc
MFC after:	3 days
2010-01-07 21:14:46 +00:00
Christian Brueffer
44640a5251 Fix a typo and bump date for the previous commit. 2010-01-07 21:08:22 +00:00
Edward Tomasz Napierala
10302b1ade Remove BUGS section that no longer applies after recent changes to semaphore
code.

OK-ed by:	davidxu
2010-01-07 16:52:00 +00:00
Konstantin Belousov
0b56296772 Give some information on SF_MNOWAIT flag.
MFC after:	3 days
2010-01-07 13:31:00 +00:00
David Xu
323d80a0a7 Don't forget to use fourth argument if O_CREAT is set in argument oflag.
The fourth specifies initial value for the semaphore.
2010-01-07 04:15:49 +00:00
John Baldwin
8feb1ea45e Use _pthread_once() rather than _once() for localtime() and gmtime(). These
methods are only invoked when __isthreaded is true at which point it is safe
to use _pthread_once() directly.

MFC after:	1 week
2010-01-06 20:43:40 +00:00
Konstantin Belousov
f5636f881b Do not rely on behaviour undefined by ANSI C, use thunks to adapt
alphasort-like interface to the comparision function required by
qsort() and qsort_r().

For opendir() thunk and alphasort(), comment on why we deviated from
POSIX by using strcmp() instead of strcoll().

Requested and reviewed by:	bde
MFC after:	2 weeks
2010-01-05 20:20:31 +00:00
Christian Brueffer
7b331f63c5 Fix a double free().
PR:		142339
Submitted by:	Henning Petersen <henning.petersen@t-online.de>
MFC after:	2 weeks
2010-01-05 20:18:41 +00:00
David Xu
523a738f77 More cleanup, remove _libc prefix because libthr no longer has stubs
referencing them.
2010-01-05 06:40:27 +00:00
David Xu
3e18aa9869 forgot to remove SYM_FBP10. ;-) 2010-01-05 05:47:18 +00:00
David Xu
79aaab046d Remove unused macros. 2010-01-05 05:44:52 +00:00
David Xu
d802aa25d2 Don't check has_waiters twice, inline some small functions.
performance result on my machine:
	mutex     Elapsed: 902115 us; per iteration: 90 ns.
	semaphore Elapsed: 958780 us; per iteration: 95 ns.
2010-01-05 03:39:31 +00:00
David Xu
9b0f1823b5 Use umtx to implement process sharable semaphore, to make this work,
now type sema_t is a structure which can be put in a shared memory area,
and multiple processes can operate it concurrently.
User can either use mmap(MAP_SHARED) + sem_init(pshared=1) or use sem_open()
to initialize a shared semaphore.
Named semaphore uses file system and is located in /tmp directory, and its
file name is prefixed with 'SEMD', so now it is chroot or jail friendly.
In simplist cases, both for named and un-named semaphore, userland code
does not have to enter kernel to reduce/increase semaphore's count.
The semaphore is designed to be crash-safe, it means even if an application
is crashed in the middle of operating semaphore, the semaphore state is
still safely recovered by later use, there is no waiter counter maintained
by userland code.
The main semaphore code is in libc and libthr only has some necessary stubs,
this makes it possible that a non-threaded application can use semaphore
without linking to thread library.
Old semaphore implementation is kept libc to maintain binary compatibility.
The kernel ksem API is no longer used in the new implemenation.

Discussed on: threads@
2010-01-05 02:37:59 +00:00
Konstantin Belousov
4176dd5267 Modernize scandir(3) and alphasort(3) interfaces according to the IEEE
Std 1003.1-2008. Both Linux and Solaris conforms to the new definitions,
so we better follow too (older glibc used old BSDish alphasort prototype
and corresponding type of the comparision function for scandir). While
there, change the definitions of the functions to ANSI C and fix several
style issues nearby.

Remove requirement for "sys/types.h" include for functions from manpage.

POSIX also requires that alphasort(3) sorts as if strcoll(3) was used,
but leave the strcmp(3) call in the function for now.

Adapt in-tree callers of scandir(3) to new declaration. The fact that
select_sections() from catman(1) could modify supplied struct dirent is
a bug.

PR:	standards/142255
MFC after:	2 weeks
2010-01-04 15:40:17 +00:00
Ed Schouten
442aea92f6 Don't forget to clean up the file copied from the kernel sources.
MFC after:	1 week
2010-01-02 20:27:14 +00:00
Brooks Davis
a6fffd6cb0 The devices that supported EVFILT_NETDEV kqueue filters were removed in
r195175.  Remove all definitions, documentation, and usage.

fifo_misc.c:
	Remove all kqueue tests as fifo_io.c performs all those that
	would have remained.

Reviewed by:	rwatson
MFC after:	3 weeks
X-MFC note:	don't change vlan_link_state() function signature
2009-12-31 20:29:58 +00:00
John Baldwin
bac2c9636c Use _once() to initialize the pthread key for thread-local storage to hold
the results of gmtime() instead of using a pthread mutex directly.

MFC after:	1 week
2009-12-30 19:06:16 +00:00
Konstantin Belousov
d439b6c223 Document _FAST and _PRECISE clocks.
Submitted by:	Valentin Nechayev <netch segfault kiev ua>
MFC after:	3 days
2009-12-29 15:58:10 +00:00
Konstantin Belousov
5d2874abdd Document CLOCK_SECOND, add cross-reference from time(3) to clock_gettime(2).
Based on submission by:	pluknet gmail com
MFC after:	3 days
2009-12-29 14:29:08 +00:00
Konstantin Belousov
358ed16f75 Use clock_gettime(CLOCK_SECOND) instead of gettimeofday(2) for
implementation of time(3). CLOCK_SECOND is much faster.

No objections from:	phk
Submitted by:	Valentin Nechayev <netch segfault kiev ua>
MFC after:	1 week
2009-12-29 12:47:47 +00:00
Antoine Brodin
13e403fdea (S)LIST_HEAD_INITIALIZER takes a (S)LIST_HEAD as an argument.
Fix some wrong usages.
Note: this does not affect generated binaries as this argument is not used.

PR:		137213
Submitted by:	Eygene Ryabinkin (initial version)
MFC after:	1 month
2009-12-28 22:56:30 +00:00
Markus Brueffer
78da985f4e Use a local copy of entry_d for finding matches. Otherwise, if entry_d pointed
to an entry of 'acl', all ACL entries starting with entry_d would be deleted.

Reviewed by:	trasz
Approved by:	emax (mentor)
MFC after:	3 days
2009-12-25 18:05:06 +00:00
Edwin Groothuis
1993d7fb07 MFV of tzdata2009t, r200831
zic:
- Fix URL / reference to Calendrical Calculations: Third Edition

libc/stdtime:
- Fix typo in tzfile.5 (no changes in our part)

MFC after:	1 week
2009-12-22 11:17:10 +00:00
Xin LI
280101b76e Use vsprintf instead of rolling our own.
PR:		bin/140496
Submitted by:	Jeremy Huddleston <jeremyhu apple.com>
MFC after:	1 month
2009-12-21 19:59:38 +00:00
Xin LI
d22fecc5e6 Use vsscanf instead of rolling our own.
PR:		bin/140530
Submitted by:	Jeremy Huddleston <jeremyhu apple.com>
MFC after:	1 month
2009-12-21 19:56:03 +00:00
Xin LI
c19ee5a0fb K&R -> ANSI prototype.
MFC after:	1 month
2009-12-21 19:55:05 +00:00
John Baldwin
a3102e9870 Use _once() to initialize the pthread key for thread-local storage to hold
the results of localtime() instead of using a pthread mutex directly.

MFC after:	1 week
2009-12-21 19:43:23 +00:00
Matteo Riondato
5d26f10fbb 2009-12-16 04:19:23 +00:00
Jilles Tjoelker
d32b247049 cpuset(2): fix a typo and a markup error in the man page
MFC after:	1 week
2009-12-15 21:02:29 +00:00
Jason Evans
5f2b1ed91b Simplify arena_run_reg_dalloc(), and remove a bug that was due to incorrect
initialization of ssize_invs.
2009-12-10 02:51:40 +00:00
Jason Evans
2354bdcf94 Fix the posix_memalign() changes in r196861 to actually return a NULL pointer
as intended.

PR:		standards/138307
2009-12-10 00:16:11 +00:00
Jilles Tjoelker
461e296c49 sem_init(3): document process shared semaphores and their restrictions 2009-12-08 20:48:06 +00:00
Sean Farley
f959b43fd0 Revert behavior change to setenv(), unsetenv() and putenv() until a more
thorough security review has been completed.
2009-12-07 00:22:10 +00:00
Sean Farley
ef6ccfb52a Update the getenv(3) man page to reflect the recent change to the behavior
of setenv(), putenv() and unsetenv() when dealing with corrupt entries in
environ.  They now output a warning and complete their task without error.

MFC after:	1 week
2009-12-06 23:51:27 +00:00
Sean Farley
ca7520fe57 Change the behavior of setenv(), putenv() and unsetenv() to continue parsing
instead of returning an error if a corrupt (not a "name=value" string) entry
in the environ array is detected when (re)-building the internal
environment.  This should prevent applications or libraries from
experiencing issues arising from the expectation that these calls will
complete even with corrupt entries.  The behavior is now as it was prior to
7.0.

Reviewed by:	jilles
MFC after:	1 week
2009-12-06 23:27:24 +00:00
Sean Farley
6da7f71cd4 Improve the comment within getenv() explaining the search order it takes to
find a variable.  Include a note that it must not cause the internal
environment to be generated since malloc() depends upon getenv().  To call
malloc() would create a circular dependency.

Recommended by:	green
Approved by:	jilles
MFC after:	1 week
2009-12-06 23:05:17 +00:00
Ed Schouten
2c201a9afe Fix many "function declaration isn't a prototype" warnings in libc.
I've only fixed code that seems to be written by `us'. There are still
many warnings like this present in resolv/, rpc/, stdtime/ and yp/.
2009-12-05 19:31:38 +00:00
Ed Schouten
dc29acd1a9 Don't let the C library depend on <utmp.h>.
The maximum length of a username has nothing to do with the size of the
username in the utmp files. Use MAXLOGNAME, which is defined as 17
(UT_USERSIZE + 1).
2009-12-05 19:04:21 +00:00
Ed Schouten
bbbe3054ff Remove warnings from exec.c.
The entries in the argv array are not const themselves, but sometimes we
want to fill in const values. Just make the array const and use
__DECONST() to make it const for the execve()-call itself.

Also convert the only K&R prototype to ANSI.
2009-12-05 18:55:16 +00:00
Ed Schouten
fd5e54d661 Use ANSI C prototypes inside termios.
While there, add a missing __unused to hide a warning in tcsetbreak().
2009-12-05 18:53:04 +00:00
Ed Schouten
86b6b655e4 Remove (hidden) warning about missing prototypes for fdevname(3). 2009-12-05 18:51:44 +00:00
Tom Rhodes
2ce5c85ed0 Add a missing word to a sentence in the return values section. 2009-12-04 09:20:20 +00:00
Gabor Kovesdan
208a6d2eb0 - Update the Spanish NLS catalog
Reviewed by:	carvay,
		the.infamous.paul@gmail.com,
		Joan Picanyol i Puig <lists-freebsd-es@biaix.org>,
		Ing . Marcos Luis Ortiz Valmaseda <mlortiz@uci.cu>,
		eskanete@gmail.com,
		Jose M Rodriguez <josemi@freebsd.jazztel.es>,
		Guillermo Hernandez <guillermo@QuerySoft.es>,
		dani.doni@gmail.com
2009-12-03 19:27:12 +00:00
John Baldwin
55fdae4cae The fd_mask type is an unsigned long, not an int, so treat the mask as a
long instead of an int when examining the results of select() to look for
RPC requests.  Previously this routine would ignore RPC requests to sockets
whose file descriptor mod 64 was greater than 31 on a 64-bit platform.

PR:		amd64/141130
Submitted by:	liujb of array networks
MFC after:	3 days
2009-12-03 15:14:30 +00:00
Christian Brueffer
da6186437a Fix the dprintf() prototype.
PR:		141087
Submitted by:	Jeremy Huddleston <jeremyhu@apple.com>
MFC after:	3 days
2009-12-02 07:51:25 +00:00
Christian Brueffer
ef33e7368a Add an .Nm for strncat.
PR:		141037
Submitted by:	Jeremy Huddleston <jeremyhu@apple.com>
MFC after:	3 days
2009-12-01 07:28:56 +00:00
Brian Feldman
56a3273e0b Temporarily revert the previous change because the linker has been
modified so that it will abort when the environment is bad.
2009-12-01 06:42:47 +00:00
Giorgos Keramidas
84518325ab Describe what setpgid(2) does when pgid=0. The text has been
copied from NetBSD's manpage, and it also matches the behavior
described by the Open Group's online copy of setpgid.2 at
http://www.opengroup.org/onlinepubs/009695399/functions/setpgid.html

Obtained from:	NetBSD
Submitted by:	Petros Barbayiannis <petrosbarbayiannis@yahoo.gr>
MFC after:	1 week
2009-12-01 06:12:31 +00:00
Brian Feldman
20f492f0eb Do not gratuitously fail *env(3) operations due to corrupt ('='-less)
**environ entries.  This puts non-getenv(3) operations in line with
getenv(3) in that bad environ entries do not cause all operations to
fail.  There is still some inconsistency in that getenv(3) in the
absence of any environment-modifying operation does not emit corrupt
environ entry warnings.

I also fixed another inconsistency in getenv(3) where updating the
global environ pointer would not be reflected in the return values.
It would have taken an intermediary setenv(3)/putenv(3)/unsetenv(3)
in order to see the change.
2009-12-01 05:04:31 +00:00
Daniel Gerzo
1743ff6a01 - correct xref sections
PR:		docs/140940
Submitted by:	Bruce Cran <bruce@cran.org.uk>
MFC after:	1 week
2009-11-28 11:27:37 +00:00
Ed Schouten
f67d07f0e1 Properly use the envp argument in execvPe().
execvPe() is called by _execvpe(), which we added to implement
posix_spawnp(). We just took execvP() and added the envp argument.
Unfortunately we forgot to change the implementation to use envp over
environ.

This fixes the following piece of code:

| char * const arg[2] = { "env", NULL };
| char * const env[2] = { "FOO=BAR", NULL };
| posix_spawnp(NULL, "/usr/bin/env", NULL, NULL, arg, env);

MFC after:	2 weeks
2009-11-27 13:05:14 +00:00
Jaakko Heinonen
909e260153 Reset path name back to original correctly in fts_build() when
FTS_NOCHDIR option is used. fts_build() could strip a trailing slash
from path name in post-order visit if a path pointing to an empty
directory was given for fts_open().

PR:		bin/133907, kern/134513
Reviewed by:	das
Approved by:	trasz (mentor)
MFC after:	1 month
2009-11-26 19:11:44 +00:00
Jaakko Heinonen
8d6956fb6b Clarify that the value of the fts_info field is different in post-order.
Discussed with:	das
Approved by:	trasz (mentor)
MFC after:	1 week
2009-11-26 19:09:10 +00:00
Konstantin Belousov
9a6ceacede Implement sighold, sigignore, sigpause, sigrelse, sigset functions
from SUSv4 XSI. Note that the functions are obsoleted, and only
provided to ease porting from System V-like systems. Since sigpause
already exists in compat with different interface, XSI sigpause is
named xsi_sigpause.

Reviewed by:	davidxu
MFC after:	3 weeks
2009-11-26 13:49:37 +00:00
Garrett Wollman
87541d3110 Style: use structure assignment rather than memcpy() to copy a
structure.
2009-11-25 04:53:38 +00:00
Garrett Wollman
bedffadccc In clnt_raw_create(), avoid minor race condition initializing the
file-scope variable clntraw_private.

Found by:	Clang static analyzer
MFC after:	7 days
2009-11-25 04:52:12 +00:00
Garrett Wollman
fcbfc882d6 In svc_raw_reply(), don't leave stat uninitialized if the MSG_ACCEPTED
&& SUCCESS case succeeds.  The stack garbage might be zero.

Found by:	Clang static analyzer
MFC after:	7 days
2009-11-25 04:49:41 +00:00
Garrett Wollman
0c0349bfa4 Eliminate more dead stores.
Found by:	Clang static analyzer
MFC after:	7 days
2009-11-25 04:45:45 +00:00
Garrett Wollman
750a395ba6 Make all three if conditions look similar by always initializing nsec
and moving the default initialization of prec into the else clause.
The clang static analyzer erroneously thought that nsec can be used
uninitialized here; it was not actually possible, but better to make
the code clearer.  (Clang can't know that sprintf() won't modify *pi
behind the scenes.)
2009-11-25 04:35:54 +00:00
Garrett Wollman
ab5b2fafec In __mbsconv(), if prec was zero, nconv could have been used
uninitialized.  Initialize it to a safe value so that there's no
chance of returning an error if stack garbage happens to be equal to
(size_t)-1 or (size_t)-2.

Found by:	Clang static analyzer
MFC after:	7 days
2009-11-25 04:27:55 +00:00
Garrett Wollman
e40c32385d Eliminate dead store.
Found by:	Clang static analyzer
MFC after:	7 days
2009-11-25 04:21:42 +00:00
John Baldwin
4e1fc19cea Revert the previous change to pthread_once() stub in libc. It is actually
a feature that libstdc++ depends on to simulate the behavior of libc's
internal '__isthreaded' variable.  One benefit of this is that _libc_once()
is now private to _once_stub.c.

Requested by:	kan
2009-11-20 20:43:34 +00:00
John Baldwin
21b9a000c7 Replace gmt_is_set and the gmt_mutex lock with a pthread_once_t variable and
an init routine run on the first invocation via _once().

MFC after:	1 week
2009-11-20 19:21:33 +00:00
John Baldwin
5bcfe82e47 Add an internal _once() method. This works identical to pthread_once(3)
with the additional property that it is safe for routines in libc to use
in both single-threaded and multi-threaded processes.  Multi-threaded
processes use the pthread_once() implementation from the threading library
while single-threaded processes use a simplified "stub" version internal
to libc.  The libc stub-version of pthread_once() now also uses the
simplified "stub" version as well instead of being a nop.

Reviewed by:	deischen, Matthew Fleming @ Isilon
Suggested by:	alc
MFC after:	1 week
2009-11-20 19:19:51 +00:00
Gabor Kovesdan
50497e556b - Update Hungarian libc catalog 2009-11-17 18:57:44 +00:00
David E. O'Brien
8b49e38f8f Catch up with r130332 which changed the default timezone from GMT to UTC.
Otherwise the tzload() (when called by gmtload()) fails to locate the UTC
file and loads the posixrules.
2009-11-17 16:29:39 +00:00
Jung-uk Kim
853ab1b70d Sync with C.msg r199083. 2009-11-16 19:10:09 +00:00
Christian Brueffer
11ea9440c3 Fix grammar.
PR:		140459
Submitted by:	Jeremy Huddleston <Jeremyhu@apple.com>
MFC after:	1 week
2009-11-16 14:33:31 +00:00
Christian Brueffer
4f6d5fda02 Fix a memory leak in acl_from_text() in case the conversion succeeded.
Submitted by:	Jim Wilcoxson <prirun@gmail.com>
MFC after:	1 week
2009-11-16 09:28:22 +00:00
Colin Percival
8a7f1847b7 Change the utrace log entry for malloc_init from (0, 0, 0) to (-1, 0, 0)
in order to distinguish it from free(NULL), which is logged as (0, 0, 0).

Reviewed by:	jhb
2009-11-14 09:31:47 +00:00
Christian Brueffer
4c1195a4d1 Remove a note about vfork(4) going to be eliminated, it's here to stay.
Submitted by:	kib
MFC after:	1 week
2009-11-13 13:26:27 +00:00
Christian Brueffer
62bf66541e Improved the manpage description. The committed wording
was provided by jhb.

PR:		140528
Submitted by:	Chris Petrik <chris@officialunix.com>
Discussed with:	remko, jhb and the submitter
MFC after:	1 week
2009-11-13 13:13:35 +00:00
Peter Pentchev
753509aeb6 Fix the grammar in the isprint(3) description.
PR:		140456
Submitted by:	Jeremy Huddleston <jeremyhu@apple.com>
2009-11-13 09:07:33 +00:00
Peter Pentchev
94317a7384 Fix the grammar in the isgraph(3) description, almost as per the PR.
PR:		140455
Submitted by:	Jeremy Huddleston <jeremyhu@apple.com>
MFC after:	2 weeks
2009-11-13 09:03:50 +00:00
Hajimu UMEMOTO
823e5e0ebf Add missing IEEE1394 support dropped during merge from NetBSD. 2009-11-12 11:54:12 +00:00
Rene Ladan
6c2af98cee Synchronize with C.msg revision 199083 and improve some existing messages.
Reviewed by:	remko
Approved by:	remko
2009-11-11 18:28:12 +00:00
Hajimu UMEMOTO
a087c7295d ANSIfy.
MFC after:	1 week
2009-11-11 15:21:06 +00:00
Peter Pentchev
82a1bd6a61 Fix the grammar as in the PR, and then some.
PR:		140454
Submitted by:	Jeremy Huddleston <jeremyhu@apple.com>
MFC after:	2 weeks
2009-11-11 11:31:02 +00:00
Hajimu UMEMOTO
1789887000 Add Japanese catalogue entries for newer errnos: EBADMSG, EMULTIHOP,
ENOLINK, EPROTO, ENOTCAPABLE.
2009-11-10 03:56:51 +00:00
Hajimu UMEMOTO
9020e36353 Add gai_strerror() catalog for ja_JP.UTF-8 and ja_JP.eucJP. 2009-11-09 17:26:16 +00:00
Hajimu UMEMOTO
0d384326cd Add NLS catalogs support to gai_strerror(3).
Controlled by NLS define.
2009-11-09 12:46:59 +00:00
Hajimu UMEMOTO
42f4692f52 Fix comment.
Pointed out by:	nyan
MFC after:	1 week
2009-11-09 12:38:13 +00:00
Hajimu UMEMOTO
be77e7423c Add ja_JP.eucJP catalog.
Reviewed by:	hrs, nork, takawata
MFC after:	1 week
2009-11-09 12:33:47 +00:00
Hajimu UMEMOTO
6bf41ac159 Add ja_JP.UTF-8 catalog.
Reviewed by:	hrs, nork, takawata
MFC after:	1 week
2009-11-09 12:28:59 +00:00
Christian Brueffer
36ba9f409d Fix a copy+paste error by checking the correct variable against MM_NULLACT.
PR:		140386
Submitted by:	soulcatcher <soulcatcher13@gmail.com
MFC after:	1 week
2009-11-08 14:02:54 +00:00
Gabor Kovesdan
f93a16d57d - Strip trailing CRs
Requested by:	Alex Kozlov <spam@rm-rf.kiev.ua> (via private mail)
2009-11-08 11:55:03 +00:00
Gabor Kovesdan
88260ae614 - Update Ukranian catalog
Submitted by:	Alex Kozlov <spam@rm-rf.kiev.ua> (via private mail)
2009-11-08 11:32:39 +00:00
Ed Schouten
54a1c2b5aa Add MAP_ANONYMOUS.
Many operating systems also provide MAP_ANONYMOUS. It's not hard to
support this ourselves, we'd better add it to make it more likely for
applications to work out of the box.

Reviewed by:	alc (mman.h)
2009-11-06 07:17:31 +00:00
Christian Brueffer
cf6c5eebe7 Use our canonical .Dd format.
Submitted by:	Ulrich Spoerlein
2009-11-02 12:35:38 +00:00
Colin Percival
4054af4fb0 Attempt to reduce accidental foot-shooting by pointing out that
accept(2)ed sockets do not necessarily inherit O_NONBLOCK from
listening sockets on non-FreeBSD platforms.

Feet shot:	cperciva
MFC after:	1 month
2009-11-02 07:21:13 +00:00
Konstantin Belousov
9a714660ef Move pselect(3) man page to section 2.
Noted by:	jhb
MFC after:	1 month
2009-10-28 11:14:32 +00:00
Konstantin Belousov
6de630f925 Commit libc files missed in r198508 2009-10-27 10:57:53 +00:00
Konstantin Belousov
066d836b02 Current pselect(3) is implemented in usermode and thus vulnerable to
well-known race condition, which elimination was the reason for the
function appearance in first place. If sigmask supplied as argument to
pselect() enables a signal, the signal might be delivered before thread
called select(2), causing lost wakeup. Reimplement pselect() in kernel,
making change of sigmask and sleep atomic.

Since signal shall be delivered to the usermode, but sigmask restored,
set TDP_OLDMASK and save old mask in td_oldsigmask. The TDP_OLDMASK
should be cleared by ast() in case signal was not gelivered during
syscall execution.

Reviewed by:	davidxu
Tested by:	pho
MFC after:	1 month
2009-10-27 10:55:34 +00:00
Jilles Tjoelker
364e9ccb9c wordexp(3): fix some bugs with signals and long outputs
* retry various system calls on EINTR
* retry the rest after a short read (common if there is more than about 1K
  of output)
* block SIGCHLD like system(3) does (note that this does not and cannot
  work fully in threaded programs, they will need to be careful with wait
  functions)

PR:		90580
MFC after:	1 month
2009-10-23 14:50:11 +00:00
Jilles Tjoelker
680db4952e Make getcwd(3) faster, simpler and more compliant using *at syscalls.
It is no longer necessary to construct long paths consisting of repeated
"../" which may be slow to process and may exceed PATH_MAX.
2009-10-13 20:58:22 +00:00
Robert Watson
8c8ee3d3b8 Add C message catalogue entries for newer errnos: EBADMSG, EMULTIHOP,
ENOLINK, EPROTO, ENOTCAPABLE.

Submitted by:	Alan R. S. Bueno <alan.bsd at gmail.com>
MFC after:	3 days (most)
2009-10-13 17:57:06 +00:00
Jilles Tjoelker
29670497af Make openat(2) a cancellation point.
This is required by POSIX and matches open(2).

Reviewed by:	kib, jhb
MFC after:	1 month
2009-10-11 20:19:45 +00:00
Konstantin Belousov
0a747fb23c In nanosleep(2), note that the calling thread is put to sleep, not the
whole process. Also explicitely name the parameter that specifies
sleep interval.
2009-10-11 16:23:11 +00:00
David Schultz
6cc40ae58b Document errno codes added in r144530. 2009-10-11 00:08:55 +00:00
Robert Watson
44a43f00ed Add a new errno, ENOTCAPABLE, to be returned when a process requests an
operation on a file descriptor that is not authorized by the descriptor's
capability flags.

MFC after:	1 month
Sponsored by:	Google
2009-10-07 20:20:51 +00:00
Robert Watson
a502a84d5a Add basename_r(3) to complement basename(3). basename_r(3) which accepts
a caller-allocated buffer of at least MAXPATHLEN, rather than using a
global buffer.

MFC after:	1 month
Sponsored by:	Google
2009-10-06 14:05:57 +00:00
Xin LI
8b8a820ded fts_open() requires that the list passed as argument to contain at least
one path.  When the list is empty (contain only a NULL pointer), return
EINVAL instead of pretending to succeed, which will cause a NULL pointer
deference in a later fts_read() call.

Noticed by:	Christoph Mallon (via rdivacky@)
MFC after:	2 weeks
2009-10-05 21:11:04 +00:00
Edwin Groothuis
28c42042d8 Modified locale(1) to be able to show the altmon_X fields and the [cxX]_fmt's.
Also modify the "-k list" option to display only fields with a certain prefix.

MFC after:      1 week
2009-10-05 07:13:15 +00:00
David Schultz
7e817e2a03 Better glibc compatibility for getline/getdelim:
- Tolerate applications that pass a NULL pointer for the buffer and
  claim that the capacity of the buffer is nonzero.

- If an application passes in a non-NULL buffer pointer and claims the
  buffer has zero capacity, we should free (well, realloc) it
  anyway. It could have been obtained from malloc(0), so failing to
  free it would be a small memory leak.

MFC After:	2 weeks
Reported by:	naddy
PR:		ports/138320
2009-10-04 19:43:36 +00:00
Joe Marcus Clarke
ad1e5416ab Correct the pthread stub prototype for pthread_mutexattr_settype to allow for
the type argument.  This is known to fix some pthread_mutexattr_settype()
invocations, especially when it comes to pulseaudio.

Approved by:	kib
		deischen (threads)
MFC after:	3 days
2009-10-01 18:23:50 +00:00
Xin LI
82aebf697c Add two new fcntls to enable/disable read-ahead:
- F_READAHEAD: specify the amount for sequential access.  The amount is
   specified in bytes and is rounded up to nearest block size.
 - F_RDAHEAD: Darwin compatible version that use 128KB as the sequential
   access size.

A third argument of zero disables the read-ahead behavior.

Please note that the read-ahead amount is also constrainted by sysctl
variable, vfs.read_max, which may need to be raised in order to better
utilize this feature.

Thanks Igor Sysoev for proposing the feature and submitting the original
version, and kib@ for his valuable comments.

Submitted by:	Igor Sysoev <is rambler-co ru>
Reviewed by:	kib@
MFC after:	1 month
2009-09-28 16:59:47 +00:00
Gabor Kovesdan
bc65e45307 - Add Galician NLS catalog 2009-09-27 13:16:38 +00:00
Dag-Erling Smørgrav
3f89d457bf Sync from head. 2009-09-26 23:25:22 +00:00
Alan Cox
b8947edcb6 Make malloc(3) superpage aware. Specifically, if getpagesizes(3) returns
a large page size that is greater than malloc(3)'s default chunk size but
less than or equal to 4 MB, then increase the chunk size to match the large
page size.

Most often, using a chunk size that is less than the large page size is not
a problem.  However, consider a long-running application that allocates and
frees significant amounts of memory.  In particular, it frees enough memory
at times that some of that memory is munmap()ed.  Up until the first
munmap(), a 1MB chunk size is just fine; it's not a problem for the virtual
memory system.  Two adjacent 1MB chunks that are aligned on a 2MB boundary
will be promoted automatically to a superpage even though they were
allocated at different times.  The trouble begins with the munmap(),
releasing a 1MB chunk will trigger the demotion of the containing superpage,
leaving behind a half-used 2MB reservation.  Now comes the real problem.
Unfortunately, when the application needs to allocate more memory, and it
recycles the previously munmap()ed address range, the implementation of
mmap() won't be able to reuse the reservation.  Basically, the coalescing
rules in the virtual memory system don't allow this new range to combine
with its neighbor.  The effect being that superpage promotion will not
reoccur for this range of addresses until both 1MB chunks are freed at some
point in the future.

Reviewed by:	jasone
MFC after:	3 weeks
2009-09-26 18:20:40 +00:00
Dag-Erling Smørgrav
0fbc5fbedf Sync with head 2009-09-25 22:45:59 +00:00
Alan Cox
403109055f Correct a section name; specifically, "AUTHOR" should be "AUTHORS". [1]
Turn the "AUTHORS" section into a full sentence.

Pointed out by: ru [1]
2009-09-21 18:02:02 +00:00
Alan Cox
aa35c4db08 Add getpagesizes(3). This functions either the number of supported page
sizes or some number of the sizes themselves.  It is functionally
compatible with a function by the same name under Solaris.

Reviewed by:	jhb
2009-09-19 18:01:32 +00:00
Christian Brueffer
8fba046b09 Fix setfib(1) section number.
PR:		133765
Submitted by:	Konstantin Zolotukhin <erebus@gorodok.net>
MFC after:	3 days
2009-09-18 14:17:00 +00:00
Dag-Erling Smørgrav
10b3b54548 Merge from head 2009-09-17 16:16:44 +00:00
Alexander Kabaev
e330a6a59e Make libc.a provide __stack_chk_fail_local weak alias. This is
needed to satisfy static libraries that are compiled with -fpic
and linked into static binary afterwards. Several libraries in
gcc are examples of such static libs.
2009-09-17 13:21:53 +00:00
Diomidis Spinellis
e7cbc6ee95 Fix an off-by-one error in the marking of the O_CH operator
following an OOR2 operator.

PR:		130504
MFC after:	2 weeks
2009-09-16 06:32:23 +00:00
Diomidis Spinellis
bca3476acd Add a couple of debugging statements. 2009-09-16 06:29:23 +00:00
Stacey Son
fdc1a1131e Add EV_RECEIPT to kevents.
EV_RECEIPT is useful to disambiguating error conditions when multiple
events structures are passed to kevent(2).  The error code is returned
in the data field and EV_ERROR is set.

Approved by:	rwatson (co-mentor)
2009-09-16 03:49:54 +00:00
Stacey Son
1a921c410a Add the EV_DISPATCH flag to kevents.
When the EV_DISPATCH flag is used the event source will be disabled
immediately after the delivery of an event.   This is similar to the
EV_ONESHOT flag but it doesn't delete the event.

Approved by:	rwatson (co-mentor)
2009-09-16 03:37:39 +00:00
Stacey Son
2c2e449905 Add EVFILT_USER to kevents.
Add user events support to kernel events which are not associated with any
kernel mechanism but are triggered by user level code.  This is useful for
adding user level events to an event handler that may also be monitoring
kernel events.

Approved by:	rwatson (co-mentor)
2009-09-16 03:30:12 +00:00
Diomidis Spinellis
b7bb894067 Add two test cases from PR 130504.
An additional one coming from http://www.research.att.com/~gsf/testregex/
was not added; at some point the entire AT&T regression test harness
should be imported here.
But that would also mean commitment to fix the uncovered errors.

PR:		130504
Submitted by:	Chris Kuklewicz
2009-09-15 21:15:29 +00:00
Edwin Groothuis
8a1df0ef4e Improve the way failure of pthread_key_create() gets detected.
PR:		threads/138603
Submitted by:	Mikulas Patocka
MFC after:	1 week
2009-09-14 11:20:45 +00:00
Daniel Eischen
e89666a9ed Bump our namespace version for 9.0.
Add a comment about keeping the private namespace at the end of
the dependency chain.
2009-09-13 13:15:36 +00:00
Ed Schouten
4522791bb4 Make the description of `b' a little better.
If you have a one-byte sequence, `w', `b' is the second character. Not
the third.

Submitted by:	Christoph Mallon
2009-09-09 19:38:19 +00:00
Poul-Henning Kamp
aa3e6183ce Revert r196976, now that <machine/param.h> behaves predictably. 2009-09-09 10:31:20 +00:00
Poul-Henning Kamp
0901106030 Add necessary include 2009-09-08 15:18:25 +00:00
Pawel Jakub Dawidek
cfef209a71 Synchornize description in manual page with strerror() output. 2009-09-06 07:22:09 +00:00
Konstantin Belousov
1ecc75dfe3 Handle zero size for posix_memalign. Return NULL or unique address
according to the 'V' option.

PR:	standards/138307
MFC after:	1 week
2009-09-05 13:32:05 +00:00
Dag-Erling Smørgrav
ae02066b83 Let the armchair generals handle this one. 2009-09-04 07:44:58 +00:00
Dag-Erling Smørgrav
5b1237b600 Document the need for a cast when passing a char to a ctype function.
MFC after:	2 weeks
2009-09-03 10:06:37 +00:00
Andrey A. Chernov
b9a10b5810 Use (unsigned char) cast for ctype macro 2009-09-02 04:56:30 +00:00
Edward Tomasz Napierala
59831d7595 Fix regression introduced with NFSv4 ACL support - make acl_to_text(3)
and acl_calc_mask(3) return error instead of crashing when acl passed
to them is NULL.

Submitted by:	markus
Reviewed by:	rwatson
MFC after:	3 days
2009-09-01 18:30:17 +00:00
Tim Kientzle
e0fdd85ff7 Style: Remove trailing whitespace. 2009-08-29 03:17:24 +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
Ed Schouten
00ee13a0af Our implementation of granpt(3) could be valid in the future.
When I wrote the pseudo-terminal driver for the MPSAFE TTY code, Robert
Watson and I agreed the best way to implement this, would be to let
posix_openpt() create a pseudo-terminal with proper permissions in place
and let grantpt() and unlockpt() be no-ops.

This isn't valid behaviour when looking at the spec. Because I thought
it was an elegant solution, I filed a bug report at the Austin Group
about this. In their last teleconference, they agreed on this subject.
This means that future revisions of POSIX may allow grantpt() and
unlockpt() to be no-ops if an open() on /dev/ptmx (if the implementation
has such a device) and posix_openpt() already do the right thing.

I'd rather put this in the manpage, because simply mentioning we don't
comply to any standard makes it look worse than it is. Right now we
don't, but at least we took care of it.

Approved by:	re (kib)
MFC after:	3 days
2009-08-24 11:16:44 +00:00
Robert Watson
3a67af38ba Update posix1e-related man pages, especially as relates to MAC, to more
accurately reflect the last ten years of work.

Approved by:	re (kib)
2009-08-12 10:46:48 +00:00
Alan Cox
5592fb2f9b Eliminate a stale paragraph from the BUGS section. This "bug" was
eliminated in r195693.

Approved by:	re (kensmith)
2009-07-26 06:38:56 +00:00
Ken Smith
764eca2591 It is believed the last subsystem that limited ID sizes to something
other than the current system-wide size (32-bits) has been updated so
for now just cautiously turn the check off.  While here fix the check
for IDs being too large which doesn't work due to type mis-matches.

Reviewed by:    jhb (previous version)
Approved by:	re (kib)
MFC after:	1 month (type mis-match fixes only)
2009-07-22 20:46:17 +00:00
Jilles Tjoelker
22e4c1c47c Correct AT_SYMLINK_FOLLOW flag name in linkat(2) man page.
Approved by:	re (kib), ed (mentor)
2009-07-19 16:48:25 +00:00
Konstantin Belousov
49e8c06b45 Implement RTLD_NOLOAD flag for dlopen(3).
Requested and tested by:	jkim
Reviewed by:	kan
Approved by:	re (kensmith)
2009-07-17 19:45:42 +00:00
Alexander Kabaev
2286fe7635 Second attempt at eliminating .text relocations in shared libraries
compiled with stack protector.

Use libssp_nonshared library to pull __stack_chk_fail_local symbol into
each library that needs it instead of pulling it from libc. GCC
generates local calls to this function which result in absolute
relocations put into position-independent code segment, making dynamic
loader do extra work every time given shared library is being relocated
and making affected text pages non-shareable.

Reviewed by:        kib
Approved by:        re (kib)
2009-07-14 21:19:13 +00:00
John Baldwin
0fe0ed8bf8 - Change mmap() to fail requests with EINVAL that pass a length of 0. This
behavior is mandated by POSIX.
- Do not fail requests that pass a length greater than SSIZE_MAX
  (such as > 2GB on 32-bit platforms).  The 'len' parameter is actually
  an unsigned 'size_t' so negative values don't really make sense.

Submitted by:	Alexander Best  alexbestms at math.uni-muenster.de
Reviewed by:	alc
Approved by:	re (kib)
MFC after:	1 week
2009-07-14 19:45:36 +00:00
Edward Tomasz Napierala
ec71a417a8 Add missing MLINKS for acl_{get,set}_link_fd(3).
Approved by:	re (kib)
2009-07-14 19:37:53 +00:00
Edward Tomasz Napierala
e64e7115aa Move msg{snd,recv,get,ctl} manual pages from section 3 to 2.
Approved by:	re (kib)
2009-07-13 12:53:43 +00:00
Ed Schouten
77822acff7 Fix fwrite() to return 0 when size or nmemb are zero.
Right now nmemb is returned when size is 0. In newer versions of the
standards, it is explicitly required that fwrite() should return 0.

Submitted by:	Christoph Mallon
Approved by:	re (kib)
2009-07-12 13:09:43 +00:00
Edward Tomasz Napierala
c38898116a There is an optimization in chmod(1), that makes it not to call chmod(2)
if the new file mode is the same as it was before; however, this
optimization must be disabled for filesystems that support NFSv4 ACLs.
Chmod uses pathconf(2) to determine whether this is the case - however,
pathconf(2) always follows symbolic links, while the 'chmod -h' doesn't.

This change adds lpathconf(3) to make it possible to solve that problem
in a clean way.

Reviewed by:	rwatson (earlier version)
Approved by:	re (kib)
2009-07-08 15:23:18 +00:00
Pawel Jakub Dawidek
69a789b985 - Don't suggest opening file for writing in preparation for fexecve(2).
- execve(2)/fexecve(2) won't return ETXTBSY if file is open for reading.

Approved by:	re (kib)
2009-07-05 20:20:09 +00:00
Edward Tomasz Napierala
bc8036862b Make it clear where to look for for protocol-specific socket options.
Reviewed by:	rwatson
Approved by:	re (kib)
2009-06-30 20:53:56 +00:00
Konstantin Belousov
8c8484d103 Make the structure definitions in the man pages match the real code, and
remove no longer valid caution.

Approved by:	re (kensmith)
2009-06-29 18:54:17 +00:00
Alexander Kabaev
d48890cfb8 Back out previous revision until better tested fix is ready.
Approved by: re (impliciti, by approving previos check-in)
2009-06-29 01:33:59 +00:00
Alexander Kabaev
a162c9ae9c Eliminate .text relocations in shared libraries compiled with stack protector.
Use libssp_nonshared library to pull __stack_chk_fail_local symbol into
each library that needs it instead of pulling it from libc. GCC generates
local calls to this function which result in absolute relocations put into
position-independent code segment, making dynamic loader do extra work everys
time given shared library is being relocated and making affected text pages
non-shareable.

Reviewed by:        kib
Approved by:        re (kensmith)
2009-06-28 23:51:39 +00:00
Xin LI
40523da708 Implement %z for strptime.
PR:		kern/63064
Submitted by:	Stefan `Sec` Zehl <sec 42 org> (with some small changes)
MFC after:	1 month
2009-06-25 23:59:23 +00:00
Edward Tomasz Napierala
c3380d406a Fix acl_set_fd(3) and acl_get_fd(3) for cases where the kernel doesn't know
anything about _PC_ACL_NFS4.
2009-06-25 20:57:53 +00:00
Edward Tomasz Napierala
b372d0d8bc Manual page tweaks. 2009-06-25 16:34:29 +00:00
Edward Tomasz Napierala
85e71e24c5 Fix c194955 - somehow I managed all the new files, tripling their
contents.
2009-06-25 13:08:02 +00:00
Edward Tomasz Napierala
ca48e73a18 Bump manual page timestamps. 2009-06-25 12:53:50 +00:00
Edward Tomasz Napierala
aa015c8e4a Add NFSv4 ACL support to libc.
This adds the following functions to the acl(3) API: acl_add_flag_np,
acl_clear_flags_np, acl_create_entry_np, acl_delete_entry_np,
acl_delete_flag_np, acl_get_extended_np, acl_get_flag_np, acl_get_flagset_np,
acl_set_extended_np, acl_set_flagset_np, acl_to_text_np, acl_is_trivial_np,
acl_strip_np, acl_get_brand_np.  Most of them are similar to what Darwin
does.  There are no backward-incompatible changes.

Approved by:    rwatson@
2009-06-25 12:46:59 +00:00
Xin LI
5f4faf74cb Lock around access to nc_file and netconfig_info ("ni"). The RPC
part of libc is still not thread safe but this would at least
reduce the problems we have.

PR:		threads/118544
Submitted by:	Changming Sun <snnn119 gmail com>
MFC after:	2 weeks
2009-06-24 23:17:16 +00:00
John Baldwin
b648d4806b Change the ABI of some of the structures used by the SYSV IPC API:
- The uid/cuid members of struct ipc_perm are now uid_t instead of unsigned
  short.
- The gid/cgid members of struct ipc_perm are now gid_t instead of unsigned
  short.
- The mode member of struct ipc_perm is now mode_t instead of unsigned short
  (this is merely a style bug).
- The rather dubious padding fields for ABI compat with SV/I386 have been
  removed from struct msqid_ds and struct semid_ds.
- The shm_segsz member of struct shmid_ds is now a size_t instead of an
  int.  This removes the need for the shm_bsegsz member in struct
  shmid_kernel and should allow for complete support of SYSV SHM regions
  >= 2GB.
- The shm_nattch member of struct shmid_ds is now an int instead of a
  short.
- The shm_internal member of struct shmid_ds is now gone.  The internal
  VM object pointer for SHM regions has been moved into struct
  shmid_kernel.
- The existing __semctl(), msgctl(), and shmctl() system call entries are
  now marked COMPAT7 and new versions of those system calls which support
  the new ABI are now present.
- The new system calls are assigned to the FBSD-1.1 version in libc.  The
  FBSD-1.0 symbols in libc now refer to the old COMPAT7 system calls.
- A simplistic framework for tagging system calls with compatibility
  symbol versions has been added to libc.  Version tags are added to
  system calls by adding an appropriate __sym_compat() entry to
  src/lib/libc/incldue/compat.h. [1]

PR:		kern/16195 kern/113218 bin/129855
Reviewed by:	arch@, rwatson
Discussed with:	kan, kib [1]
2009-06-24 21:10:52 +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
eb4bd20c17 Use const instead of __const, and merge the license change from NetBSD.
Obtained from:	NetBSD
2009-06-23 23:52:12 +00:00
Edwin Groothuis
9cf330555a Remove duplicate if-statement on gmt_is_set in gmtsub().
MFC after:	1 week
2009-06-23 22:28:44 +00:00
Konstantin Belousov
c9253e931d Usermode portion of the support for swap allocation accounting:
- update for getrlimit(2) manpage;
- support for setting RLIMIT_SWAP in login class;
- addition to the limits(1) and sh and csh limit-setting builtins;
- tuning(7) documentation on the sysctls controlling overcommit.

In collaboration with:	pho
Reviewed by:	alc
Approved by:	re (kensmith)
2009-06-23 20:57:27 +00:00
Jamie Gritton
b97457e2e6 Add a limit for child jails via the "children.cur" and "children.max"
parameters.  This replaces the simple "allow.jails" permission.

Approved by:	bz (mentor)
2009-06-23 20:35:51 +00:00
Ed Schouten
dc428c2ffe Remove unneeded stdlib directories.
It's not necessary to add stdlib directories for each architecture, even
if the architecture doesn't implement any files of its own.

Submitted by:	Christoph Mallon
2009-06-23 14:11:41 +00:00
Ed Schouten
87fbd35f4f Simplify. We can just use .sinclude here.
Submitted by:	Christoph Mallon
2009-06-23 14:10:46 +00:00
Ed Schouten
e71280c7bc Remove hand-written labs/abs implementations. GCC is smart enough.
It turns out GCC generates code that's a couple of bytes big bigger, but
performs no branching whatsoever.

Submitted by:	Christoph Mallon
2009-06-23 09:04:59 +00:00
Ed Schouten
f863f9cbd9 Remove unneeded stores back into the function arguments.
Submitted by:	Christoph Mallon
2009-06-22 10:56:08 +00:00
Stanislav Sedov
c61860f8a6 - Eliminate extra subcs instruction. I have not noticed before that we
always perform substraction now, so no instruction could be rordered
  to eliminate the conditional substraction.
2009-06-21 13:15:56 +00:00
Stanislav Sedov
aa79fe245d - Fix strncmp on arm. Return 0 as result without performing the
main cycle only if the len passed is equal to 0. If end address
  overflows use last possible address as the end address.

Based on:	discussion on arm@
MFC after:	1 month
2009-06-21 12:58:56 +00:00
Brooks Davis
838d985825 Rework the credential code to support larger values of NGROUPS and
NGROUPS_MAX, eliminate ABI dependencies on them, and raise the to 1024
and 1023 respectively.  (Previously they were equal, but under a close
reading of POSIX, NGROUPS_MAX was defined to be too large by 1 since it
is the number of supplemental groups, not total number of groups.)

The bulk of the change consists of converting the struct ucred member
cr_groups from a static array to a pointer.  Do the equivalent in
kinfo_proc.

Introduce new interfaces crcopysafe() and crsetgroups() for duplicating
a process credential before modifying it and for setting group lists
respectively.  Both interfaces take care for the details of allocating
groups array. crsetgroups() takes care of truncating the group list
to the current maximum (NGROUPS) if necessary.  In the future,
crsetgroups() may be responsible for insuring invariants such as sorting
the supplemental groups to allow groupmember() to be implemented as a
binary search.

Because we can not change struct xucred without breaking application
ABIs, we leave it alone and introduce a new XU_NGROUPS value which is
always 16 and is to be used or NGRPS as appropriate for things such as
NFS which need to use no more than 16 groups.  When feasible, truncate
the group list rather than generating an error.

Minor changes:
  - Reduce the number of hand rolled versions of groupmember().
  - Do not assign to both cr_gid and cr_groups[0].
  - Modify ipfw to cache ucreds instead of part of their contents since
    they are immutable once referenced by more than one entity.

Submitted by:	Isilon Systems (initial implementation)
X-MFC after:	never
PR:		bin/113398 kern/133867
2009-06-19 17:10:35 +00:00
Brooks Davis
54404cfb13 In preparation for raising NGROUPS and NGROUPS_MAX, change base
system callers of getgroups(), getgrouplist(), and setgroups() to
allocate buffers dynamically.  Specifically, allocate a buffer of size
sysconf(_SC_NGROUPS_MAX)+1 (+2 in a few cases to allow for overflow).

This (or similar gymnastics) is required for the code to actually follow
the POSIX.1-2008 specification where {NGROUPS_MAX} may differ at runtime
and where getgroups may return {NGROUPS_MAX}+1 results on systems like
FreeBSD which include the primary group.

In id(1), don't pointlessly add the primary group to the list of all
groups, it is always the first result from getgroups().  In principle
the old code was more portable, but this was only done in one of the two
places where getgroups() was called to the overall effect was pointless.

Document the actual POSIX requirements in the getgroups(2) and
setgroups(2) manpages.  We do not yet support a dynamic NGROUPS, but we
may in the future.

MFC after:	2 weeks
2009-06-19 15:58:24 +00:00
Alexander Kabaev
e7733ffa39 Re-do r192913 in less intrusive way. Only do IP_RECVDSTADDR/IP_SENDSRCADDR
dace for UPDv4 sockets bound to INADDR_ANY. Move the code to set
IP_RECVDSTADDR/IP_SENDSRCADDR into svc_dg.c, so that both TLI and non-TLI
users will be using it.

Back out my previous commit to mountd. Turns out the problem was affecting
more than one binary so it needs to me addressed in generic rpc code in
libc in order to fix them all.

Reported by:	lstewart
Tested by:	lstewart
2009-06-18 17:10:43 +00:00
John Baldwin
8ee45544b2 Retire the unused stub for the nfsclnt() system call. 2009-06-17 18:52:42 +00:00