Commit Graph

17 Commits

Author SHA1 Message Date
Warner Losh
4d846d260e spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSD
The SPDX folks have obsoleted the BSD-2-Clause-FreeBSD identifier. Catch
up to that fact and revert to their recommended match of BSD-2-Clause.

Discussed with:		pfg
MFC After:		3 days
Sponsored by:		Netflix
2023-05-12 10:44:03 -06:00
Ed Maste
5b5fa75acf libc: drop "All rights reserved" from Foundation copyrights
This has already been done for most files that have the Foundation as
the only listed copyright holder.  Do it now for files that list
multiple copyright holders, but have the Foundation copyright in its own
section.

Sponsored by:	The FreeBSD Foundation
2022-08-04 16:57:50 -04:00
Pedro F. Giffuni
d915a14ef0 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
Konstantin Belousov
14d1c3b581 Fix typo in the r320472 change to fgetws(). Return proper value.
Reported by:	Oleg Ginzburg <olevole@olevole.ru>
Reviewed by:	vangyzen
Sponsored by:	The FreeBSD Foundation
MFC after:	13 days
2017-06-30 20:23:46 +00:00
Konstantin Belousov
fda0a14f47 Make stdio deferred cancel-safe.
If used with fopen(3)/fdopen(3)-ed FILEs, stdio accurately uses
non-cancellable internal versions of the functions, i.e. it seems to
be fine with regard to cancellation.  But if the funopen(3) and
f{r,w}open(3) functions were used to open the FILE, and corresponding
user functions create cancellation points (they typically have no
other choice), then stdio code at least leaks FILE' lock.

The change installs cleanup handler which unlocks FILE.  Some minimal
restructuring of the code was required to make it use common return
place to satisfy hand-rolled pthread_cleanup_pop() requirements.

Noted by:	eugen
Reviewed by:	eugen, vangyzen
Tested by:	pho
Sponsored by:	The FreeBSD Foundation
MFC after:	2 weeks
Differential revision:	https://reviews.freebsd.org/D11246
2017-06-29 14:44:17 +00:00
Andrey A. Chernov
0b51c11a0e Fix n == 1 case. Here should be no physical read (fill buffer) attempt
(we read n - 1 chars with the room for NUL, see fgets()),
and no NULL return.

MFC after:      3 days
2016-09-05 06:10:51 +00:00
Andrey A. Chernov
4a9921c601 1) Prevent out of bounds access to ws[-1] (passed buffer) which happens
when the first mb sequence is incomplete and there are not enougn chars in
the read buffer. ws[-1] may lead to memory faults or false results, in
case the memory here contains '\n'.

2) Fix EOF checking I mess in my previos r305406 commit.

MFC after:      3 days
2016-09-05 04:49:58 +00:00
Andrey A. Chernov
0c744b20b0 Fix errors handling.
MFC after:      3 days
2016-09-05 03:37:28 +00:00
David Chisnall
3c87aa1d3d Implement xlocale APIs from Darwin, mainly for use by libc++. This adds a
load of _l suffixed versions of various standard library functions that use
the global locale, making them take an explicit locale parameter.  Also
adds support for per-thread locales.  This work was funded by the FreeBSD
Foundation.

Please test any code you have that uses the C standard locale functions!

Reviewed by:    das (gdtoa changes)
Approved by:    dim (mentor)
2011-11-20 14:45:42 +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
John Baldwin
1e98f88776 Next stage of stdio cleanup: Retire __sFILEX and merge the fields back into
__sFILE.  This was supposed to be done in 6.0.  Some notes:
- Where possible I restored the various lines to their pre-__sFILEX state.
- Retire INITEXTRA() and just initialize the wchar bits (orientation and
  mbstate) explicitly instead.  The various places that used INITEXTRA
  didn't need the locking fields or _up initialized.  (Some places needed
  _up to exist and not be off the end of a NULL or garbage pointer, but
  they didn't require it to be initialized to a specific value.)
- For now, stdio.h "knows" that pthread_t is a 'struct pthread *' to
  avoid namespace pollution of including all the pthread types in stdio.h.
  Once we remove all the inlines and make __sFILE private it can go back
  to using pthread_t, etc.
- This does not remove any of the inlines currently and does not change
  any of the public ABI of 'FILE'.

MFC after:	1 month
Reviewed by:	peter
2008-04-17 22:17:54 +00:00
Stefan Farfeleder
4c86f66f52 Don't add integers to void pointers. 2004-10-03 15:48:32 +00:00
Tim J. Robbins
7d7287dc7d Read directly from the stdio buffer using the new __mbsnrtowcs() interface
instead of making repeated calls to __fgetwc().
2004-07-21 12:12:48 +00:00
Tim J. Robbins
7591ae56ae Lock the file once per call and use the unlocked fgetwc()/fputwc() variants. 2002-09-20 13:25:40 +00:00
Tim J. Robbins
24990dfad0 Reimplement the functionality of fgetrune(), fputrune(), and fungetrune()
here in terms of mbrtowc(), wcrtomb(), and the single-byte I/O functions.
The rune I/O functions are about to become deprecated in favour of the
ones provided by ISO C90 Amd. 1 and C99.
2002-09-18 05:58:11 +00:00
Tim J. Robbins
58d38e2520 Style: One space between "restrict" qualifier and "*". 2002-09-06 11:24:06 +00:00
Tim J. Robbins
e74101e4ef Basic support for wide character I/O: getwc(), fgetwc(), getwchar(),
putwc(), fputwc(), putwchar(), ungetwc(), fwide().
2002-08-13 09:30:41 +00:00