History log of /freebsd/lib/libc/stdio/wbuf.c (Results 1 – 25 of 44)
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# dc36d6f9 23-Nov-2023 Warner Losh <imp@FreeBSD.org>

lib: Remove ancient SCCS tags.

Remove ancient SCCS tags from the tree, automated scripting, with two
minor fixup to keep things compiling. All the common forms in the tree
were removed with a perl s

lib: Remove ancient SCCS tags.

Remove ancient SCCS tags from the tree, automated scripting, with two
minor fixup to keep things compiling. All the common forms in the tree
were removed with a perl script.

Sponsored by: Netflix

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Revision tags: release/14.0.0
# 4e0e01bf 07-Nov-2023 Ed Maste <emaste@FreeBSD.org>

fflush: correct buffer handling in __sflush

Two additional stdio changes followed 86a16ada1ea6 and need to be
reverted as part of the fflush fix.

This reverts commit 6e13794fbe6e82c21365d0fd66769bf

fflush: correct buffer handling in __sflush

Two additional stdio changes followed 86a16ada1ea6 and need to be
reverted as part of the fflush fix.

This reverts commit 6e13794fbe6e82c21365d0fd66769bf8b19c0197.
This reverts commit bafaa70b6f9098d83d074968c8e6747ecec1e118.

Fixes: d09a3bf72c0b ("fflush: correct buffer handling in __sflush")
Reviewed by: markj
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D42491

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# d09a3bf7 03-Aug-2023 Dag-Erling Smørgrav <des@FreeBSD.org>

fflush: correct buffer handling in __sflush

This fixes CVE-2014-8611 correctly.

The commit that purported to fix CVE-2014-8611 (805288c2f062) only hid
it behind another bug. Two later commits, 86a

fflush: correct buffer handling in __sflush

This fixes CVE-2014-8611 correctly.

The commit that purported to fix CVE-2014-8611 (805288c2f062) only hid
it behind another bug. Two later commits, 86a16ada1ea6 and
44cf1e5eb470, attempted to address this new bug but mostly just confused
the issue. This commit rolls back the three previous changes and fixes
CVE-2014-8611 correctly.

The key to understanding the bug (and the fix) is that `_w` has
different meanings for different stream modes. If the stream is
unbuffered, it is always zero. If the stream is fully buffered, it is
the amount of space remaining in the buffer (equal to the buffer size
when the buffer is empty and zero when the buffer is full). If the
stream is line-buffered, it is a negative number reflecting the amount
of data in the buffer (zero when the buffer is empty and negative buffer
size when the buffer is full).

At the heart of `fflush()`, we call the stream's write function in a
loop, where `t` represents the return value from the last call and `n`
the amount of data that remains to be written. When the write function
fails, we need to move the unwritten data to the top of the buffer
(unless nothing was written) and adjust `_p` (which points to the next
free location in the buffer) and `_w` accordingly. These variables have
already been set to the values they should have after a successful
flush, so instead of adjusting them down to reflect what was written,
we're adjusting them up to reflect what remains.

The bug was that while `_p` was always adjusted, we only adjusted `_w`
if the stream was fully buffered. The fix is to also adjust `_w` for
line-buffered streams. Everything else is just noise.

Fixes: 805288c2f062
Fixes: 86a16ada1ea6
Fixes: 44cf1e5eb470
Sponsored by: Klara, Inc.

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# 559a218c 01-Nov-2023 Warner Losh <imp@FreeBSD.org>

libc: Purge unneeded cdefs.h

These sys/cdefs.h are not needed. Purge them. They are mostly left-over
from the $FreeBSD$ removal. A few in libc are still required for macros
that cdefs.h defines. Kee

libc: Purge unneeded cdefs.h

These sys/cdefs.h are not needed. Purge them. They are mostly left-over
from the $FreeBSD$ removal. A few in libc are still required for macros
that cdefs.h defines. Keep those.

Sponsored by: Netflix
Differential Revision: https://reviews.freebsd.org/D42385

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# 1d386b48 16-Aug-2023 Warner Losh <imp@FreeBSD.org>

Remove $FreeBSD$: one-line .c pattern

Remove /^[\s*]*__FBSDID\("\$FreeBSD\$"\);?\s*\n/


Revision tags: release/13.2.0, release/12.4.0
# 44cf1e5e 02-Sep-2022 Konstantin Belousov <kib@FreeBSD.org>

libc/stdio: only roll FILE state back on EINTR

Reported by: JunT <takimoto-j@kba.biglobe.ne.jp>
PR: 266171
Reviewed by: emaste, markj
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
Different

libc/stdio: only roll FILE state back on EINTR

Reported by: JunT <takimoto-j@kba.biglobe.ne.jp>
PR: 266171
Reviewed by: emaste, markj
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
Differential revision: https://reviews.freebsd.org/D36427

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# 120bacab 02-Sep-2022 Konstantin Belousov <kib@FreeBSD.org>

__swbuf(): style

Reviewed by: emaste, markj
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
Differential revision: https://reviews.freebsd.org/D36427


Revision tags: release/13.1.0
# 6e13794f 25-Mar-2022 Mark Johnston <markj@FreeBSD.org>

libc: Restore fp state upon flush error in fputc

This is akin to commit bafaa70b6f9098d83d074968c8e6747ecec1e118.

Reported by: Guy Yur <guyyur@gmail.com>
Fixes: 86a16ada1ea6
MFC after: 3 days
Spon

libc: Restore fp state upon flush error in fputc

This is akin to commit bafaa70b6f9098d83d074968c8e6747ecec1e118.

Reported by: Guy Yur <guyyur@gmail.com>
Fixes: 86a16ada1ea6
MFC after: 3 days
Sponsored by: The FreeBSD Foundation

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Revision tags: release/12.3.0, release/13.0.0, release/12.2.0, release/11.4.0, release/12.1.0, release/11.3.0, release/12.0.0, release/11.2.0
# 82725ba9 23-Nov-2017 Hans Petter Selasky <hselasky@FreeBSD.org>

Merge ^/head r325999 through r326131.


# 8a16b7a1 20-Nov-2017 Pedro F. Giffuni <pfg@FreeBSD.org>

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 f

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.

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Revision tags: release/10.4.0, release/11.1.0, release/11.0.1, release/11.0.0, release/10.3.0, release/10.2.0, release/10.1.0
# 246e7a2b 02-Sep-2014 Neel Natu <neel@FreeBSD.org>

IFC @r269962

Submitted by: Anish Gupta (akgupt3@gmail.com)


# ee7b0571 19-Aug-2014 Simon J. Gerraty <sjg@FreeBSD.org>

Merge head from 7/28


# 1b833d53 13-Aug-2014 Alexander V. Chernikov <melifaro@FreeBSD.org>

Sync to HEAD@r269943.


# 450ead86 20-Jul-2014 Pedro F. Giffuni <pfg@FreeBSD.org>

Adjust errno on failed prepwrite.

Obtained from: Apple Inc. (Libc 997.90.3)
Phabric: D442
MFC after: 1 week


Revision tags: release/9.3.0, release/10.0.0, release/9.2.0
# d1d01586 05-Sep-2013 Simon J. Gerraty <sjg@FreeBSD.org>

Merge from head


# 40f65a4d 07-Aug-2013 Peter Grehan <grehan@FreeBSD.org>

IFC @ r254014


# 552311f4 17-Jul-2013 Xin LI <delphij@FreeBSD.org>

IFC @253398


# cfe30d02 19-Jun-2013 Gleb Smirnoff <glebius@FreeBSD.org>

Merge fresh head.


Revision tags: release/8.4.0
# 5a6307cf 23-Apr-2013 Ed Maste <emaste@FreeBSD.org>

Convert libc/stdio from K&R to ANSI C

And add '__restrict' where it appeared in the header prototypes


# 1d8053c5 23-Apr-2013 Ed Maste <emaste@FreeBSD.org>

Renumber clauses to reduce diffs to other versions

NetBSD, OpenBSD, and Android's Bionic all number the clauses 1 through 3,
so follow suit to make comparison easier.

Acked-by: imp@


Revision tags: release/9.1.0, release/8.3.0_cvs, release/8.3.0, release/9.0.0, release/7.4.0_cvs, release/8.2.0_cvs, release/7.4.0, release/8.2.0, release/8.1.0_cvs, release/8.1.0, release/7.3.0_cvs, release/7.3.0, release/8.0.0_cvs, release/8.0.0, release/7.2.0_cvs, release/7.2.0, release/7.1.0_cvs, release/7.1.0, release/6.4.0_cvs, release/6.4.0, release/7.0.0_cvs, release/7.0.0, release/6.3.0_cvs, release/6.3.0, release/6.2.0_cvs, release/6.2.0
# c879ae35 09-Jan-2007 Warner Losh <imp@FreeBSD.org>

Per Regents of the University of Calfornia letter, remove advertising
clause.

# If I've done so improperly on a file, please let me know.


Revision tags: release/5.5.0_cvs, release/5.5.0, release/6.1.0_cvs, release/6.1.0, release/6.0.0_cvs, release/6.0.0, release/5.4.0_cvs, release/5.4.0, release/4.11.0_cvs, release/4.11.0, release/5.3.0_cvs, release/5.3.0
# 52183d46 08-Jun-2004 David Schultz <das@FreeBSD.org>

Rename cantwrite() to prepwrite(). The latter is less confusing,
since the macro isn't really a predicate, and it has side-effects.


Revision tags: release/4.10.0_cvs, release/4.10.0, release/5.2.1_cvs, release/5.2.1, release/5.2.0_cvs, release/5.2.0, release/4.9.0_cvs, release/4.9.0, release/5.1.0_cvs, release/5.1.0, release/4.8.0_cvs, release/4.8.0, release/5.0.0_cvs, release/5.0.0, release/4.7.0_cvs, release/4.6.2_cvs, release/4.6.2
# e74101e4 13-Aug-2002 Tim J. Robbins <tjr@FreeBSD.org>

Basic support for wide character I/O: getwc(), fgetwc(), getwchar(),
putwc(), fputwc(), putwchar(), ungetwc(), fwide().


Revision tags: release/4.6.1, release/4.6.0_cvs
# 333fc21e 22-Mar-2002 David E. O'Brien <obrien@FreeBSD.org>

Fix the style of the SCM ID's.
I believe have made all of libc .c's as consistent as possible.


# 8fb3f3f6 21-Mar-2002 David E. O'Brien <obrien@FreeBSD.org>

Remove 'register' keyword.


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